NorthStar 951X Installation Manual

GPS CHART NAVIGATORS INSTALLATION MANUAL Revision B Part Number GM1505C Northstar Technologies 30 Sudbury Road Acton, Massachusetts 01720 www.northstarcmc.com Service: 978/897-0770 Sales: 978/897-6600 Downloaded from www.Manualslib.com manuals search engine

Northstar Technologies, a division of BSC, Inc., warrants the Northstar 951/952 to be free from defects in materials and workmanship for a period of two (2) years. This warranty applies to the original purchaser and to any subsequent owner during the warranty period, which begins on the date of shipment of the unit, F.O.B. Acton, Massachusetts, to an authorized Northstar dealer. Systems may not be returned to Northstar without a Returned Materials Authorization (RMA) number. Call the Northstar dealer or Northstar for instructions. During the unit’s warranty period, Northstar will repair or replace, at its option, any part of the unit it finds to be defective due to faulty mate- rial(s) or workmanship. All such repairs and/or replacements will be promptly performed by Northstar free-of-charge to the owner, excluding freight costs incurred in shipping to the factory. Return shipments from Northstar to points within the United States are made via ground trans- portation, freight prepaid. Special shipping charges (overnight, two-day, and so on) are the responsibility of the owner. To be covered by this warranty, the Northstar equipment must have been in normal use. This warranty does not apply to units with defects caused by improper installation, physical damage, abuse, tampering, lightning or other abnormal electrical discharge, or to units with defaced or altered serial numbers, or to units repaired by unauthorized persons or repaired in a manner that violates Northstar’s recommended service procedures. All repairs and/or replacements made under this warranty must be per- formed at Northstar’s facilities in Acton, Massachusetts. Performance of warranty work elsewhere will not be authorized, and Northstar will not pay for any charges for such work. Northstar will not be responsible for payment of any charges imposed by a Northstar dealer or other party for services requested by and/or performed for a unit’s owner in connection with this warranty. Such services might include removal of the unit from a vessel, inspection, packaging, handling, reinstallation, and the like. Northstar Technologies assumes no responsibility for any consequential losses of any nature with respect to any of its products or services sold, rendered, or delivered. The foregoing is the only warranty expressed or implied. No other warranty exists. Downloaded from www.Manualslib.com manuals search engine

Page i Contents SECTION ONE - Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Who should read this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Scope of this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Getting technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Servicing the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Returning a unit for service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 SECTION TWO - Installing the unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Safety considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Installation considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Choosing a system location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Wiring the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Installing the antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Turning the unit on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Testing and troubleshooting the 951/952 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 SECTION THREE - Interfacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Interfacing the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Configuring the NMEA output ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Connecting to other equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Setting the anchor-watch alarm honk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Configuring the RS-232 port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Ordering 951/952 software updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 APPENDIX A - Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 951/952 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 IEC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 Internal DGPS receiver specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 AN150 Active GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 8410 Antenna Coupling Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 Combination GPS/DGPS antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 Downloaded from www.Manualslib.com manuals search engine

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Page iii Figures Figure 1: 951/952 dimensions (side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Figure 2: 951/952 dimensions (front) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Figure 3: Yoke mount drilling dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Figure 4: Flush mount drilling dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Figure 5: Rear connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Figure 6: Separation distances between antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Figure 7: GPS-only antenna (AN150) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Figure 8: Stripping the coax cable jacket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Figure 9: Flared cable braid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Figure 10: Completed BNC connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Figure 11: Combo GPS/DGPS antenna (AN205-P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Figure 12: Correct AN205-P (combo antenna) splitter wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Figure 13: Stripping the coax cable jacket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Figure 14: Flared cable braid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Figure 15: Completed TNC connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Figure 16: ACU assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Figure 17: Correct AN150 and 8410 wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Figure 18: PL 259 (UHF) connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Figure 19: Proper insertion of a chart cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Figure 20: Interface connector (as viewed from back of unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Figure 21: 200 PPNM output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Figure 22: Aux port interface diagram (wiring side view, solder cup) . . . . . . . . . . . . . . . . . . . . . . . . . .51 Figure 23: Pin 14 honk alarm interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Downloaded from www.Manualslib.com manuals search engine

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Page v Tables Table 1: Contacting Northstar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table 2: Troubleshooting the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 3: Troubleshooting the GPS/DGPS antenna installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Table 4: Interface connector pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Table 5: Port setup options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Table 6: 0183 sentence identifiers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Table 7: Connecting to an external Northstar beacon receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Table 8: Connection to Northstar 800 port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Table 9: Connection to Northstar 800 port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Table 10: Northstar 800 series output port setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Table 11: Yeoman plotter setup with the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Table 12: Beep and honk settings for all alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Table 13: Standards for IEC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Downloaded from www.Manualslib.com manuals search engine

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951/952 INSTALLATION MANUAL Revision B Page 1 SECTION ONE - Introduction Welcome The Northstar 951/952 Installation Manual describes how to install, interface, and troubleshoot the Northstar 951 and 952 GPS chart naviga- tors. Also described are the physical, mechanical, and electrical character- istics of each unit. For complete details about operating the unit, see the Northstar 951/952 Operator’s Manual (part number GM1500C). The terms “unit” and “951/952” are used throughout this manual to refer to both the 951 and 952 GPS chart navigators. The 952 features a color display, but is otherwise identical to the 951, except where noted. The 951X and 952X are both differential-ready so you can interface them to an external differential receiver. The 951XD and 952XD have built-in dif- ferential receivers. Unless specifically indicated, all information in this manual refers to both the X (non-differential) and XD (differential) ver- sions of the unit. Who should read this manual The Northstar 951/952 Installation Manual is intended for marine techni- cians who are configuring and installing either 951 or 952 GPS chart nav- igators. Scope of this manual In this manual, you’ll find information about the following: • mounting and wiring the unit • installing the antenna • testing and troubleshooting the unit • configuring the NMEA output ports • configuring the RS-232 port • connecting two units to share waypoints and routes • technical specifications The rest of this particular chapter explains how to obtain technical sup- port and how to return a unit for factory service. Getting technical support After you’ve followed the instructions in this installation guide, if you need additional technical support or have any other service-related ques- tions, you can contact either your dealer or the Northstar Service Depart- ment. Northstar’s Service Department can be reached by email, fax, U.S. Downloaded from www.Manualslib.com manuals search engine

Page 2 951/952 INSTALLATION MANUAL Revision B mail, or phone as described in the table below. Whether you send an email or fax, or write or phone, please have the unit’s serial number avail- able, and be as complete and accurate as possible when describing the problem so that a service technician can research the problem and pro- vide the quickest possible response. Northstar’s Service Department is available between 9:00 AM and 5:00 PM Eastern Time, Monday through Friday, excluding major holidays. Table 1: Contacting Northstar Hearing from you Your feedback is important and helps Northstar ensure that this manual is a valuable resource for all marine technicians. Send your questions, comments, or suggestions about this manual to: [email protected] Servicing the unit Repair of the unit is performed only at the Northstar factory. Service includes a complete hardware and software check-out. For a system under warranty, shipping charges to the factory are the only cost for factory repair. Repaired units will be returned via prepaid econ- omy ground freight (units returned overseas are chargeable). Units and accessories returned for warranty repair that are determined to be without fault are subject to a handling charge. Email: Service: [email protected] Sales: [email protected] Fax: Service: 978/897-1595 Sales: 978/897-7241 Telephone: Main number: 978/897-6600 or 800/628-4487 Sales: 978/897-0770 Service: 978/897-6600 U.S. mail: 30 Sudbury Road Acton, MA 01720 Website: www.northstarcmc.com (you can send email to Northstar directly from this site) You can email the North- star Service Department directly from Northstar’s website. The address is www.northstarcmc.com. Here, you also can access additional techni- cal information under either the Manuals or Support links. NOTE: Field repairs are not authorized and will void the warranty! Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 3 Returning a unit for service The unit is covered by a two-year hardware-only warranty, which, in summary, states that if the unit is returned to the factory by the owner or dealer during the warranty period, Northstar will repair or replace, free of charge, any part found to be defective due to faulty materials or work- manship if the system has been properly installed and hasn’t been abused. See the Limited Warranty Policy at the front of this manual for further details. The only cost to the owner will be the one-way shipping charges and any associated charges that may be imposed by the dealer. If you have overnight or second-day shipping requirements, before ship- ping the unit, please call the factory for turnaround time, freight charges, and payment arrangements. The unit should be shipped only in a properly designed carton with pack- ing material. Shipments to the Northstar factory should be made to the following address: Northstar Technologies Service Department 30 Sudbury Road Acton, MA 01720 USA CAUTION! You may want to back-up any user-defined waypoints and routes before returning the unit for repair; see the Northstar 951/952 Operator’s Manual for information on customizing the unit. Before returning the unit to the Northstar factory, to prevent delays it is critical that you first obtain a Return Materials Authorization (RMA) number from the Northstar Service Department. If you purchased your unit through a dealer, call the dealer with your serial number so they can give you an RMA number. Shipments without a proper RMA number will not be accepted! Downloaded from www.Manualslib.com manuals search engine

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951/952 INSTALLATION MANUAL Revision B Page 5 SECTION TWO - Installing the unit This chapter includes all the information needed to install the unit. It begins with a review of the system components and then provides infor- mation on basic installation and powering on the unit. The rest of this chapter describes how to wire the unit, install the antenna, and trouble- shoot. Proper installation of the Northstar 951/952 is of utmost impor- tance to accurately receive and effectively use GPS signals under a wide variety of weather conditions. Safety considerations Ordering information To order spare parts or replacement/missing parts, call the Northstar Sales Department at 978-897-0770. WARNING! Be sure to turn the power off at the main switchboard before starting the installation. Further, it is highly recommended that you post a notice by this switch telling others to keep power off while you’re performing the installation. If power is left on or turned on during the installation, then fire, electrical shock, or other serious injury may occur. CAUTION! Be sure to ground the equipment in order to prevent electrical shock and mutual interference. Be sure that the voltage of the power supply is compatible with the unit’s voltage rating, which can be found on the label at the rear of the unit. Con- necting to the wrong power supply can result in fire or damage to the equipment. Be sure to use the proper fuse. Using the incorrect fuse can result in fire or damage to the unit. Keep the following safe compass distance from the unit: 1.0m standard, 0.8m steering. Be sure that the 951/952 doesn’t interfere with any of the on-board sys- tems. Check all other systems to ensure that their performance doesn’t degrade when the unit is turned on. Downloaded from www.Manualslib.com manuals search engine

Page 6 951/952 INSTALLATION MANUAL Revision B System overview The unit is shipped ready to install and operate (however, you’ll need spe- cial tools for assembling the coaxial cable connectors; see “Mounting the AN150 antenna” on page 18.) It is recommended that you follow the steps below: 1. Check the shipping carton for any damage, and immediately report any damage to the carrier. Save all packing material in case you have to return the unit to the factory for repair or evaluation. 2. Unpack the carton, and compare its contents with those on the pack- ing list and what you ordered. The shipping carton contains: • the Northstar 951X/XD or 952X/XD • yoke-mount kit • flush-mount gasket • GPS antenna • 50-foot coaxial antenna cable • for units with an internal differential beacon receiver: an 8410 Antenna Coupling Unit (ACU); or, an AN205-P combination GPS/ DGPS antenna • 10-foot interface cable • 10-foot power cable • flush-mount drilling template • connectors and parts kit • sunshield • Northstar 951XD/952XD Installation Manual • Northstar 951XD/952XD Operator’s Manual 3. After reviewing the components, next, review the components of a proper installation. For details, see “Ensuring a proper installation” below. 4. Select the desired unit mounting location. For details, see ”Choosing a system location” beginning on page 8. 5. Select the desired antenna mounting location. For details, see ”Installing the antenna” beginning on page 15. 6. Make the appropriate power wiring connections. For details, see ”Wiring the unit” beginning on page 13. 7. Turn on the unit. For details, see ”Turning the unit on and off” begin- ning on page 28. 8. To ensure that the system is running properly, perform a functional test. For details, see ”Testing and troubleshooting the 951/952” beginning on page 31. 9. If desired, interface the NMEA output ports; for details, see ”Config- uring the NMEA output ports” beginning on page 41. If desired, interface the RS-232 port; for details, see ”Configuring the RS-232 port” beginning on page 58. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 7 Installation considerations Ensuring a proper installation To ensure a proper installation, it is highly recommended that you per- form all of the following activities before starting the installation: • preview/survey the vessel’s layout and existing equipment • review all the installation materials • review all the installation requirements, including: - the physical requirements (spacing, location with regard to other equipment, etc.) - the electrical and electronic requirements (interference between other pieces of equipment, power requirements, etc.) Although the unit itself is very straightforward and easy to understand, it has a few basic requirements that must be met before safe and proper operation can be assured. The major parts of the rest of this section address several topics regarding the minimum installation requirements for the unit, in order to: • minimize electrical wiring hazards • accurately receive GPS signals • navigate safely Bench-testing the unit Northstar recommends that you bench-test the unit before installing it on the vessel. Bench-testing ensures that the equipment is fully operational, and allows the GPS receiver to collect its almanac and ephemeris data for the installed location, which results in less on-board installation time. Using the AN150 GPS antenna The GPS antenna is best mounted in the clear, and low on the vessel to avoid extra motion from pitching and rolling. It should be mounted lower than directional high-power transmitting antennas such as radar or sat- com. The length of coaxial cable to the “active” AN150 antenna (supplied with the unit) must be a minimum of 20 feet, but not more than 100 feet. Coil up any unused length of cable; do not cut it to less than 20 feet! Be sure that all cable connectors are securely fastened, and that the cable itself is not subject to any tight bends. For complete details on the AN150, see ”Choosing an antenna location” starting on page 15. CAUTION! The following basic setup information isn’t a substitute for all the details in SECTION TWO. To ensure that you meet all crit- ical installation parameters, be sure to read and follow all of the requirements. Downloaded from www.Manualslib.com manuals search engine

Page 8 951/952 INSTALLATION MANUAL Revision B Using DGPS with an AN150 and 8410 ACU If the unit is equipped with a differential receiver (and you’re using the AN150 GPS antenna, not the AN205-P GPS/DGPS combo antenna), this receiver must be connected to a Northstar 8410 differential Antenna Coupling Unit (ACU). The ACU’s four-foot whip antenna should be mounted as high as conveniently possible—but not at the highest point—and as far away as possible from other antennas. The ACU can be mounted on a standard marine antenna mount (1" diameter, 14 threads per inch). For complete details on the AN150/8410 ACU mounting requirements, see ”Installing an 8410 ACU (for use with the AN150 only)” starting on page 23. Using the AN205-P DGPS antenna For details on the DGPS antenna’s mounting requirements, see ”Choosing an antenna location” starting on page 15. Choosing a system location The 951/952 unit houses the GPS receiver, optional differential receiver, computer, power supply, lights, controls and the specially-coated display screen. The mounting location should be chosen carefully before any drilling or cutting takes place: Choose a mounting location that allows good visibility of the unit’s screen, is within comfortable reach, and pro- vides a reasonably direct path for running the required electrical cabling. Be sure you have easy access to the control panel’s keys and that the dis- play can be clearly seen from the normal vantage point when the user is navigating. Even though the display screen contains an effective anti-reflective coating, choose a location that will minimize glare from windows or other bright objects. Although the 952 is direct-sunlight viewable, for optimal viewing it is recommended that you install the 952 in a location that’s out of direct sunlight. Although the unit itself is waterproof, the connectors at the back of the unit aren’t immune to corrosion from saltwater spray. Protect the unit from prolonged exposure to the elements by mounting it in a relatively dry area, if possible. At the end of the day, the unit can be wiped off with a damp cloth. When not in use, the unit should be covered with the sun- shield to protect it from excessive heat. To help plan the installation, see Figure 1: ”951/952 dimensions (side),” below and Figure 2: ”951/952 dimensions (front),” below. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 9 Figure 1: 951/952 dimensions (side) Downloaded from www.Manualslib.com manuals search engine

Page 10 951/952 INSTALLATION MANUAL Revision B Figure 2: 951/952 dimensions (front) Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 11 Flush and yoke-mounting Whether you’re flush- or yoke-mounting the unit, allow at least 2½-inch clearance at the rear for cables and connectors. For yoke mounting, leave ample room (usually two inches) all around the sides and top to avoid crowding the unit. For the recommended drilling dimensions, see Figure 3 below. Before drilling holes, rotate the unit to the desired angle to ensure proper clearance for cables and operation of the unit. Figure 3: Yoke mount drilling dimensions Downloaded from www.Manualslib.com manuals search engine

Page 12 951/952 INSTALLATION MANUAL Revision B For the recommended flush mounting drilling dimensions, see Figure 4 below. Figure 4: Flush mount drilling dimensions Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 13 Wiring the unit The majority of installation problems are caused by shortcuts taken with system cables. When installing the unit, be sure that you: • assemble connectors carefully • don’t make sharp bends • leave service and drip loops • tie-wrap all cables to keep them secure • if cables are shortened, lengthened, or re-terminated, seal all wiring splices The unit should be connected to a source of 10- to 40-volt electrical power, using at least 16-gauge wire. A 10-foot fused power cable is sup- plied with the unit, and should be long enough for most installations. If it is necessary to lengthen the power cable, however, you may extend it to a maximum of 25 feet (using at least 14-gauge wire for runs over 15 feet) without adversely affecting the operation of the unit. Electrical power requirements The unit is a negative-ground system that is reverse-polarity protected; an external fuse prevents damage to sensitive components. The wires in the 10-foot power cable must be connected as follows (black and white can be connected together at the power source): • Red → Positive(+) (fused lead) • Black → Negative(–) • White → Ground (earth) CAUTION! When flush-mounting, be sure to mount the unit on a flat sur- face. Mounting on a curved surface can distort or break the plastic and cause a breech in the waterproof seal. Do not over- tighten as case damage may occur and waterproof integrity may be compromised. This will void the warranty due to physi- cal damage. CAUTION! Ensure that fuse or circuit-breaker protection is provided at the power source. NOTE: If a noise-free earth grounding point isn’t available, the white wire should be capped and insulated. It shouldn’t be used when an earth ground isn’t available. Downloaded from www.Manualslib.com manuals search engine

Page 14 951/952 INSTALLATION MANUAL Revision B • 14-gauge connecting wire (recommended for runs of 15 feet or more) • 16-gauge minimum allowed for runs up to 15 feet Northstar strongly recommends as a good safety practice that the unit be connected to an external circuit breaker or 3-amp fuse located near the battery or breaker box. The internal fuse is designed to protect the unit itself; the external fuse or breaker is intended to protect the vessel wiring and prevent electrical fires. The power wiring should be connected directly to the battery when possible for optimum noise immunity. Figure 5: Rear connectors • J1 - Power Connector (3-wire) • J2 - Main I/O Interface Connector (18-wire) • J3 - Auxiliary (10-wire) • J4 - GPS Antenna Connector (BNC) • J5 - DGPS Antenna Connector (UHF) Internal fuse The unit is designed with an internal fusible link to protect against faulty power wiring. The link consists of a short length of 30 AWG wire located on the I/O circuit board. CAUTION! The unit requires the following DC power: • 10–40VDC • negative ground only Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 15 Replacement of the fusible link should be performed only by a qualified electronics technician. If this link becomes open-circuited between the white and black wires, carefully check all power wiring on the vessel, especially the white and black wires on the power cable, before removing the link. You access the link by removing the 10 outer case screws to open the unit, then removing the four computer-board screws and lifting the computer board out to expose the I/O board below. The link should be replaced with another short length of 30-gauge wire. Installing the antenna Choosing an antenna Three antenna choices are available for the 951X/952X or 951XD/952XD: • one for reception of GPS-only signals (the standard one-piece “active” AN150 antenna) • one for reception of both GPS and DGPS signals (a two-piece antenna system comprising the standard AN150 GPS antenna and the 8410 DGPS coupler) • one for reception of both GPS and DGPS signals (optional one-piece AN205-P “combination” antenna) Choosing an antenna location Choosing the AN150 antenna location The GPS receiving antenna is a vital link between the unit’s receiver and the outside world. Aesthetics and easy access should be secondary to pro- viding strong and reliable GPS signals to the unit’s receiver. You should select a location for the antenna that meets the following requirements: • The antenna should have a reasonably clear view of the horizon, but be no higher than necessary (side-to-side motion of the antenna caused by rolling of the vessel may degrade the SOG and COG read- ings); however, the antenna should be 12 to 18 inches above the sur- rounding surfaces to avoid interference. • The antenna must be out of the radiation path of any on-board radar sets or strong magnetic fields. • The antenna must be lower than any INMARSAT communications antenna. • The antenna should be as far as possible from other high-power transmitting antennas. • Watch out for electromagnetic “shading” of antennas from rigging, other vessels, shoreline buildings, and so on. Secure the cable well. To avoid mutual interferences among different antennas on the vessel, refer to the recommended separation distances illustrated in Figure 6: ”Separation distances between antennas,” below. This figure shows the minimum recommended distances for the separation of the GPS antenna from other antennas and physical mounting surfaces. Under normal cir- cumstances, following these guidelines usually results in a relatively trou- Downloaded from www.Manualslib.com manuals search engine

Page 16 951/952 INSTALLATION MANUAL Revision B ble-free installation; however, the installer may want to adjust these distances, depending on the particular equipment and how it’s config- ured. Because each installation is unique—according to the wishes of the customer—this information should be used only as a guideline. It isn’t absolute in determining the best location for every possible equipment configuration. Figure 6: Separation distances between antennas Choosing the AN205-P combination antenna location For applications where optimum portability is required, or when you want only a single antenna, a combination GPS/DGPS antenna is avail- able. The “combo” antenna should be located where it has a clear view of the horizon, but where it isn’t the highest point on the vessel. Keep the combo antenna at least six feet away from objects that can “shade” GPS or differential signals. If poor GPS Signal-to-Noise Ratio (SNR) readings are obtained after the unit has been running for several minutes, check that you have the proper length of cable, and verify the quality of the antenna location and the quality and proper termination of the connectors. SNR should be as NOTE: Be especially careful about the distance between the combo antenna and any sources of magnetic interference (for exam- ple, the INMARSAT antenna). Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 17 high as possible: Values of 15 and higher are preferable, and anything below 10 could indicate poor reception. Installing the AN150 antenna Whereas a loran or differential antenna should be mounted high on the vessel for best performance, the GPS antenna should be mounted as low as possible and out in the open to avoid “shading” (placement of the antenna where it’s partially obscured, by another object, from the signals it must receive). If you’re mounting the GPS antenna on top of a tower or mast, understand that the unit will be affected by the pitch and roll of the vessel. Often, the bow or stern can provide a location where shading is minimized while serving to keep the antenna low. Be sure that any direc- tional L-band transmitting antennas (such as radar or satellite communi- cation antennas) can never point at the GPS antenna, since its internal preamplifier is quickly destroyed by such radiation. Figure 7: GPS-only antenna (AN150) NOTE: Concerns for the AN205-P that aren’t explained in Table 3, “Troubleshooting the GPS/DGPS antenna installation,” on page 35, include the fact that mounting a loop-type antenna in close proximity to a radome (radar-set antenna) can degrade signals or cause a complete loss of the beacon signal. The klystron or magnetron contained in the radar antenna pro- duces a very dense magnetic field, whether or not the radar set is turned on. These magnetic field effects are also present during the operation of the servo motors located on gyro-stabi- lized TV or INMARSAT communications dish platforms. Sig- nal-degradation checks should be performed before finalizing the installation.
    
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Page 18 951/952 INSTALLATION MANUAL Revision B Wiring the AN150 antenna Supplied with the antenna is a 50-foot length of RG-59 coaxial cable to use with the GPS-only AN150 “active” antenna (as well as the GPS/DGPS AN205-P “combo” antenna). Mounting the AN150 antenna Tools needed: • flat-bladed screwdriver • knife blade • Amphenol crimp tools One TNC connector is pre-attached to the antenna-end of the RG-59 coaxial cable. Connection to the antenna itself involves the following steps: 1. Remove the antenna base by loosening the four captive screws in the base. 2. Screw the base onto the top of the antenna mount (standard 1"-14 marine thread). 3. Feed the open end of the supplied coax cable down through the antenna base and through the hollow core of the antenna mount. 4. Affix the TNC connector-end of the coax to the mating connector inside the upper half of the GPS antenna. Be sure to tighten it securely, as vibration can loosen the connection over time. In addi- tion, protect the coax-to-antenna connection with liquid electrical tape or self-vulcanizing electrical tape. 5. Align the upper half of the antenna with the bottom half and tighten the four screws. Be careful not to over-tighten the screws, as this may deform the watertight seal between the two antenna halves. 6. Make a termination for a male BNC connection—as described in the following steps—then connect the antenna to the female BNC con- nection at the back of the unit. 1. Strip cable jacket to the following dimensions (in inches), as illustrated in Figure 8: ”Stripping the coax cable jacket,” below: a=0.57, b=0.34, c=0.14, d=0.43. Do not nick the center conductor. CAUTION! The GPS-only antenna must be used with a minimum of 20 feet of cable, and no more than 100 feet. Any unused length must be coiled up; do not cut it to less than 20 feet! Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 19 Figure 8: Stripping the coax cable jacket 2. See Figure 9: ”Flared cable braid,” below: Slide outer fer- rule on as shown. Slightly flare the end of cable braid, as shown, to facilitate insertion into inner ferrule. Figure 9: Flared cable braid 3. Place center contact onto center conductor so that it butts against the cable dielectric. Crimp the contact in place using Amphenol tool handle #227-944 and Cavity B of Die Set 227-980-3. 4. Install cable assembly into body assembly so inner fer- rule slides over dielectric and under braid. Push cable assembly forward until contact seats in insulator. Slide outer ferrule over braid and up against connector body. Crimp outer ferrule using Cavity A of tools specified above. The connector ferrule-to-cable junction can be sealed and protected using adhesive-lined heat shrink. Figure 10: Completed BNC connector Installing the AN205-P antenna The AN205-P combo antenna provides for an easier, more compact, and more attractive installation, and in many cases, the loop antenna’s design improves the noise rejection of signals interfering with differential signals. Downloaded from www.Manualslib.com manuals search engine

Page 20 951/952 INSTALLATION MANUAL Revision B Figure 11: Combo GPS/DGPS antenna (AN205-P) Wiring the AN205-P antenna When you use the AN205-P antenna, a cable “splitter” is required to sepa- rate the signal path of the single cable connected at the antenna into two cables for connection to the 951/952. For the proper installation of the splitter, refer to Figure 12: ”Correct AN205-P (combo antenna) splitter wiring,” below. The splitter should be located near the unit for conve- nience, but may be situated virtually anywhere along the length of the maximum 100 feet of RG-59 GPS cable, without appreciable signal loss. Note, however, that the splitter isn’t weatherproof and should be placed in a protected area where it won’t be subjected to direct water splash or spray. CAUTION! The combo antenna must be used with a minimum of 20 feet of cable, and no more than 100 feet. Any unused length must be coiled up; do not cut it to less than 20 feet!
  
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951/952 INSTALLATION MANUAL Revision B Page 21 Figure 12: Correct AN205-P (combo antenna) splitter wiring Avoid tight bends when installing any antenna cable. Be sure to fasten the cable along its length to avoid chafing or whipping of any kind. After you’ve mounted the antenna and cut the cable to length—not less than 50 feet—install the supplied TNC connector at the other (952X) end. See Figure 13, Figure 14, and Figure 15 below. A satisfactory crimp for this connector may be made with a commonly available, high-quality crimping tool designed for use with TNC connectors. NOTE: Be sure that you properly install the TNC connector: Most sys- tem failures—whether continuous or intermittent—can be traced to poor connector installation. Downloaded from www.Manualslib.com manuals search engine

Page 22 951/952 INSTALLATION MANUAL Revision B Mounting the AN205-P antenna 1. Strip cable jacket to the following dimensions (in inches), as illus- trated in Figure 13: ”Stripping the coax cable jacket,” below: a=0.57, b=0.34, c=0.14, d=0.43. Do not nick the center conductor. Figure 13: Stripping the coax cable jacket 2. Figure 14: ”Flared cable braid,” below: Slide outer ferrule on as shown. Slightly flare the end of cable braid, as shown, to facilitate insertion into inner ferrule. Figure 14: Flared cable braid 3. Place center contact onto center conductor so that it butts against the cable dielectric. Crimp the contact in place using Amphenol tool handle #227-944 and Cavity B of Die Set 227-980-3. 4. Install cable assembly into body assembly so inner ferrule slides over dielectric and under braid. Push cable assembly forward until con- tact seats in insulator. Slide outer ferrule over braid and up against connector body. Crimp outer ferrule using Cavity A of tools specified above. The connector ferrule-to-cable junction can be sealed and protected using adhesive-lined heat shrink. Figure 15: Completed TNC connector Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 23 Installing an 8410 ACU (for use with the AN150 only) The Northstar 8410 Antenna Coupling Unit (ACU—supplied with a unit that’s equipped with a DGPS receiver) is used when you don’t want to use the combo AN205-P antenna. Although similar in appearance to North- star loran ACUs, only the unit labeled “8410” will work with the internal DGPS receiver. The ACU also serves as a sturdy mounting base for the whip antenna. The ACU consists of two pieces. The circuitry is sealed in a rugged, water- proof, fiberglass polycarbonate body, the upper end of which is threaded to accept a standard 4-foot whip antenna. A large female thread is molded into the lower portion, or base, of the ACU body into which the upper half is secured (see Figure 16, “ACU assembly”). A gasket and rubber O-ring on the upper half provide weathertight sealing when the two halves are secured. The bottom of the base is threaded (1"–14) to mount onto an antenna mast or onto a standard deck mount. Figure 16: ACU assembly Downloaded from www.Manualslib.com manuals search engine

Page 24 951/952 INSTALLATION MANUAL Revision B The ACU connects to the 951X or 952X with RG-58U coaxial cable, which carries signals to the differential receiver and DC power to the ACU amplifier. See Figure 17 below for the correct AN150/8410 wiring. A 25-foot length of this cable is supplied with the unit. This cable may be extended up to a length of 300 feet. The cable passes up through the hol- low ACU base and connects to the PL-259 (UHF) connector at the bottom of the ACU. For UHF connector preparation, see“Differential GPS antenna cable connectors” beginning on page 25. Figure 17: Correct AN150 and 8410 wiring CAUTION! Maintaining the ACU’s weathertight seal between its upper and lower halves requires only hand-tightening the two together. Using a wrench or other tool may distort the gasket or housing/ rubber O-ring inside, or break the coupler base. NOTE: This connection must be made before the ACU is screwed into its base. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 25 RF grounding The grounding system is an equal partner with the antenna in producing quality differential beacon signals for the 951/952 differential receiver. Essentially, the ground system provides a secure connection to a large electrical mass; ideally, the earth itself. On a vessel, this means establish- ing electrical contact with “seawater” ground. On a steel vessel, a good connection to the hull or steel pilothouse is sufficient. Wood or fiberglass vessels require a metal ground plate or a thru-hull fitting. If the metal ground plate is impractical, the engine block or the negative (–) battery terminal can sometimes be used, but only as a last choice due to stray electrical noise that may be present at these locations. Lack of proper grounding can adversely affect differential signal strength, as well as SNRs, and is the most common source of problems with differ- ential antenna installations. The same grounding techniques that have worked well for loran systems will work equally well for differential antenna systems. The 8410 ACU has a separate black ground wire inside the coupler base. This wire is the AC signal ground connection from the antenna input circuit. The purpose of bringing it out is to make available a separate signal ground path. Use #16 AWG minimum for grounding. If possible, use a grounding “strap” that is designed for this purpose. Other electrical equipment onboard can cause large amounts of electrical noise, even at points that appear well-grounded. Try several ground points (ground plate, vessel ground, engine block, and so on) to deter- mine which works best under different conditions. Differential GPS antenna cable connectors Both ends of the differential beacon receiver antenna cable terminate in UHF connectors. To prepare UHF connectors, follow the assembly instructions in Figure 18. For best results, coat these connectors with sili- cone dielectric grease (DC 4 or equivalent) to protect the connector junc- tion against water intrusion and surface corrosion of the contacts. In addition, protect the connector area, including the shield-to-connector junction and jacket-to-crimp ferrule area, with liquid electrical tape (Star- bright Liquid Tape comes in color-coordinating black or white) or self-vulcanizing electrical tape (Tommy Tape). WARNING! Whenever any antenna is disconnected from on-board equip- ment, be sure to ground the antenna shield in order to dis- charge extremely large static voltages that can quickly build up on an ungrounded antenna system. These voltages are haz- ardous to personnel and equipment! Downloaded from www.Manualslib.com manuals search engine

Page 26 951/952 INSTALLATION MANUAL Revision B Figure 18: PL 259 (UHF) connector Mounting the 8410 The Northstar 8410 differential receiver antenna should be mounted as high as conveniently possible (but not at the highest point) and as far away as possible from other antennas. If you have several possible antenna locations, you may evaluate each by operating the unit with the DGPS antenna temporarily mounted in each location. The best location is one providing the lowest “noise” count (atmospheric impulse noise generated by thunderstorms and other conditions, includ- ing vessel-generated noise and any on-board interference) and highest Signal-to-Noise Ratio (SNR). You can view both of these values after you turn the unit’s power on; see ”Turning the unit on” starting on page 29. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 27 Another major concern, precipitation static (called “P-static”), must be addressed when installing the differential antenna. P-static generally appears only during rain or snow; consequently, it can easily be over- looked during installation. Much like a loran antenna, the effects of P-static are minimized if the differential antenna is mounted so that it isn’t the highest metallic object on the vessel. The highest metal object acts much like a lightning rod, attracting tiny static discharges in the atmosphere. If the differential receiver antenna is the highest object, these discharges can totally override the differential signals and cause poor operation in bad weather. The optimum antenna location is high and clear for fair-weather operation, but below the top of a metal mast or other antenna for best foul-weather operation. On sailing vessels, the ACU could be mounted on top of a low mast, or on the stern rail if no other suitable location is available. The 8410 differential receiver ACU can be mounted on a standard marine antenna mount (one inch diameter, 14 threads per inch). For special applications involving serious grounding problems, or where optimum portability is required, you can use the AN205-P combination GPS/DGPS antenna; for details, see ”Installing the AN205-P antenna” starting on page 19. Downloaded from www.Manualslib.com manuals search engine

Page 28 951/952 INSTALLATION MANUAL Revision B Turning the unit on and off Inserting a chart cartridge If using a chart cartridge, you should insert the cartridge before turning the unit on (to avoid any possibility of a system lock-up). The cartridge slot is located at the lower right-hand corner of the unit. If the unit is off, you can verify whether a cartridge has already been installed by opening the cartridge access door (turn its handle ¼-turn counter-clockwise) and looking inside the slot. If the unit is on, you can verify whether a car- tridge has already been installed by pressing the
 menu key to the right of the CHART screen (the cartridge access door must be fully closed and latched to display this information). One of two possible screens will be displayed: • If a cartridge is present, the cartridge name and date are displayed at the bottom of the CHART SETUP/STATUSscreen (at left below). • If a cartridge is either not installed or incorrectly installed, the words NONE INSERTED are displayed (at right below). The cartridge name is derived from its Navionics catalog number. The date may not be present for all cartridges, especially older ones; in these cases, the word PRESENT is displayed in place of the cartridge name and date. Before inserting the cartridge, make sure that its label is facing up and that the cartridge is oriented as shown in Figure 19 below. Insert the car- tridge gently but firmly into position with one straight, smooth motion. If you partially insert the cartridge, then move the cartridge again after stopping, it may become stuck in an awkward position. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 29 Figure 19: Proper insertion of a chart cartridge Turning the unit on To activate the unit, briefly press the  key. You’ll be greeted with a map of the Earth with the words “NORTHSTAR” (at left below) or “NORTHSTAR 952X” (at right below), then the owner identification mes- sage. Next, the unit performs a series of self-tests (the 951 and 952 self-test screens vary slightly) in which critical components and functions are checked for any errors. The Navionics chart car- tridge must remain free from debris and moisture at all times. To ensure that you do not expose the car- tridge to any environmen- tal damage, please use caution when changing the cartridge. Exercise care when inserting the cartridge into the North- star unit (see description and illustration at right). When not in use, store the cartridge in a clean, dry place away from heat, humidity, and dust. Improper handling and storage of the cartridge may result in damage to the Northstar unit. Such damage is not covered under manufacturer war- ranty. Downloaded from www.Manualslib.com manuals search engine

Page 30 951/952 INSTALLATION MANUAL Revision B Advisory message When the unit is powered up, a special advisory message is displayed as a precautionary reminder that the unit’s chart cartography must not be relied upon as the sole means of safe navigation. Although every effort has been made to ensure that the data used by the unit is as close to paper charts as possible, errors and omissions are inevitable. Therefore, extreme care must be used when navigating by means of electronic charts. It is the captain’s responsibility to cross-check the 951/952 against other sources of navigation data. To proceed, you must first acknowledge your acceptance of the advisory message by pressing any one of the five function keys located beneath the display screen. GPS signals Once the unit is turned on and has acquired satellite data, you can check the quality of the GPS signals being received by viewing the various satel- lites’ SNR (Signal-to-Noise Ratio) readings: Press the   key to view the GPS POSITION screen (as shown at left below), then press the NOTE: If the unit’s power has been off and its display screen is “cold,” a brief warm-up period may be required for the display screen to achieve its full intensity. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 31    menu key to view the DGPS STATUS screen (as shown at right below). Turning the unit off To shut off the unit, press and hold the  key for approximately four seconds until the screen goes dark. Testing and troubleshooting the 951/952 Installation-test checklist To test the system after installation, first apply power to the unit and con- firm power is on with no errors. Next, check for the presence of GPS and DGPS signals. Review the chart-plotter function: With the chart cartridge inserted, confirm that the chart map is displayed. Troubleshooting common installation problems Typical problems you may encounter either during or after the installa- tion process are outlined in the following tables: Table 2, “Troubleshoot- ing the installation,” on page 31 below, and Table 3, “Troubleshooting the GPS/DGPS antenna installation,” on page 35. Table 2: Troubleshooting the installation Problem Area Symptom Possible Solutions/Reasons POWER Pressing the  key doesn’t start the unit. • Check the fuse and the power to the unit. DISPLAY The unit powers up, beeps, and the back- light can be operated up and down, but there isn’t any video. • If a 951, try adjusting the contrast by pressing the  key. If a 952, the display may have failed (the 952’s  key adjusts only bright- ness, not contrast). Call your North- star dealer or the Northstar Service Department. Downloaded from www.Manualslib.com manuals search engine

Page 32 951/952 INSTALLATION MANUAL Revision B DISPLAY (cont’d) The display screen dims, either slightly or more, after the unit has been on for a cer- tain time. • The unit may be implementing its auto-dimming mode. Auto-dimming helps maintain the integrity of the dis- play and reduce power consumption when the unit is on and running too hot for its current environment. In this case the display screen may dim to half its intensity. SYSTEM System lock-ups Software-related: System locks up under certain conditions, such as when configuring screens, routes, waypoints, or tide data. Displays error message ROM NO GOOD. System always freezes at one particular screen. • Install the latest software version; to order, call the Northstar Service Department. • Install the latest software version; to order, call the Northstar Service Department. • Internal software failure; call your Northstar dealer or the Northstar Ser- vice Department. SYSTEM System lock-ups Hardware-related: The system locks up on a random basis with no apparent pattern. The system locks up when using a chart card. System fails any initial self-tests other than ROM NO GOOD. • Internal hardware failure; call your Northstar dealer or the Northstar Ser- vice Department. • Possible bad chart card. Remove the card, and inspect the pin area of the card and the unit for damage. If the pins in the unit are bent or damaged, to prevent further damage, don’t insert another card. If you’re sure that the card pins aren’t bent, try inserting a new card. • Internal hardware failure; call your Northstar dealer or the Northstar Ser- vice Department. SYSTEM Configuration No GPS or DGPS • Possible incorrect installation of the AS110/AS105 splitter cables; they may be reversed at the splitter for the GPS and differential output ports. • For verification and troubleshooting of the antenna system, see Table 3, “Troubleshooting the GPS/DGPS antenna installation,” on page 35. Table 2: Troubleshooting the installation (continued) Problem Area Symptom Possible Solutions/Reasons Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 33 DGPS (DIFFERENTIAL) There’s no DGPS indicator on the display screen, and: The BEACON RX SELF-TEST message says FAILED (press the  key to access the USER CUSTOMIZATION screen, then press the 
   menu key to display the SER- VICE INFORMATION screen). • Wait 30 minutes after start-up (only if a new unit). • Check for an open or shorted bea- con-antenna cable connector. • Check for proper ground (8410 only). • The Northstar 8410 ACU or the differ- ential circuit board may be defective; call your Northstar dealer or the Northstar Service Department. There’s no DGPS indicator on the screen, and: The BEACON RX SELF-TEST message reads PASSED (press the  key to access the USER CUSTOMIZATION screen, then press the 
   menu key to display the SER- VICE INFORMATION screen), and the DGPS STATUS message reads SEARCH- ING (press the    key to access the GPS POSITION screen, then press the    key to display the DGPS STATUS screen). • Wait 30 minutes after start-up (only if a new unit) so the receiver can find a differential transmitter within range) check local knowledge or transmit- ters). • Check for high noise level, possibly due to a storm front, or for local inter- ference at the marina or on the ves- sel. For details about noise-level meanings, see the Northstar 951/952 Operator’s Manual (GM1500C). • Turn off power to each and all of the vessel’s other instruments, one at a time, to isolate the source of the inter- ference. • Try manually selecting and setting a DGPS beacon station to be used to see if the signal can be received. • Consult the Coast Guard's Local Notice to Mariners to determine if there’s a scheduled maintenance out- age for the station you’re trying to use. • For additional guidance, call your Northstar dealer or the Northstar Ser- vice Department. DGPS (cont’d) There’s no DGPS indicator on the screen, and: The BEACON RX SELF-TEST AND SOFT- WARE reads PASSED, and the DGPS STATUS message reads OLD CORREC- TIONS. • No DGPS corrections have been received, and the system has returned to non-differential operation. You may be out of range of a trans- mitter, or if you’re experiencing bad weather, noise may be interfering. In either case, you must wait. Table 2: Troubleshooting the installation (continued) Problem Area Symptom Possible Solutions/Reasons Downloaded from www.Manualslib.com manuals search engine

Page 34 951/952 INSTALLATION MANUAL Revision B There’s no DGPS indicator on the CHART screen, and: The BEACON RX SELF-TEST AND SOFT- WARE reads PASSED, and the DGPS STATUS message reads POOR DOPS. • Wait for the satellite configuration to automatically update, which should only take a few minutes. There’s no DGPS indicator on the CHART screen, and: BCN UNHEALTHY is displayed. • Wait—the transmitter is switching to another beacon. You can try manually switching to another transmitter. INTERFERENCE Electrical, magnetic, or radio frequency (RF) energy is interfering with the reliable opera- tion of the unit, as shown by high levels of noise on the DGPS STATUS screen. • Turn off power to each and all of the vessel’s other instruments and sys- tems, one at a time, to isolate the source of the interference. • Attempt to eliminate the noise through earth grounding or RF filtering tech- niques as appropriate to the type of noise encountered. GPS The unit powers up, but poor GPS SNR readings are obtained even after running the unit for several minutes. • Check that you have the proper length and type of cable, and that all connections are clean and secure. • Verify the quality of the antenna loca- tion (the antenna should have a clear view of the sky). For the correct antenna placement, see Figure 6. • See Table 3, “Troubleshooting the GPS/DGPS antenna installation,” on page 35. Table 2: Troubleshooting the installation (continued) Problem Area Symptom Possible Solutions/Reasons Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 35 Troubleshooting common GPS/DGPS antenna installation problems Whenever possible, the best and most efficient way to troubleshoot is to use a known-good set of cables, a splitter for combo antennas (when applicable), and working antennas as spares for swapping. In Table 3, “Troubleshooting the GPS/DGPS antenna installation,” on page 35, the Northstar AN150 refers to the 12-dB GPS antenna; the Northstar 8410 coupler with whip antenna refers to the beacon receiver whip-type (E-field) antenna; and the Northstar AN205-P refers to the combination (combo) GPS/DGPS loop antenna with splitter. Table 3: Troubleshooting the GPS/DGPS antenna installation Antenna Symptom Possible Solutions/Reasons GPS ANTENNA Poor or no GPS signal while using the AN150 antenna. If 5.5 VDC low or missing with load con- nected: If 5.5 VDC is missing with load discon- nected: If 5.5 VDC is present: • Turn off any onboard transmitting devices. • Check for 5.5 VDC at antenna with and without antenna load connected.a • Check for 5.5 VDC at 951/952 BNC connector. • It indicates a bad connector installa- tion, bad GPS board, or bad AN150 antenna. • It indicates a bad GPS board. • It indicates a bad AN150. Replace the AN150. DGPS ANTENNA No GPS or DGPS • Bad splitter configuration.b • Splitter cables may be reversed for GPS and DGPS output. Poor or no GPS signal while using the AN205-P antenna with splitter: If 7.75 VDC is low or missing with load con- nected: If 7.75 VDC is low or missing with load dis- connected: If 7.75 VDC is present at processor UHF connector but not at antenna: • Check installation for correct cabling. • Check for 7.75 VDC at antenna with and without antenna load (cables and splitter) connected.c (Use “T” connec- tors to measure VDC under load.) • Check for 7.75 VDC at 951/952 UHF/ DGPS connector. • It indicates a bad connector installa- tion, bad differential 8500-A board, bad AN2xx. The load is too great or the 8500-A board is defective. • It indicates a bad 8500-A board, or other internal fault. • It indicates bad cabling, bad connec- tors, or a bad splitter. Downloaded from www.Manualslib.com manuals search engine

Page 36 951/952 INSTALLATION MANUAL Revision B DGPS ANTENNA (cont’d) No beacon signal (applies to all DGPS antennas): If the BEACON RX SELF-TEST reads “FAILED:” If the coax and antenna are okay and there is 7.75 VDC: • Press the  key to display the USER CUSTOMIZATION screen, then press the 
   menu key to display the RECEIVER OPTIONS screen: Here, check that the DGPS OPERATION option is set to “ENABLED” and the BEACON FREQ option is set to “AUTO,” and that the BEACON BAUD RATE option is set to “AUTO.” • Press the  key to access the USER CUSTOMIZATION screen, then press the 
   menu key to display the SERVICE INFORMATION screen: Here, check that the BEACON RX SELF-TEST reads “PASSED.” • Check the coax and antenna for open/ short, and check for 7.75 VDC at the UHF connector, under load. • The 8500-A board may be bad. Table 3: Troubleshooting the GPS/DGPS antenna installation (continued) Antenna Symptom Possible Solutions/Reasons Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 37 DGPS ANTENNA (cont’d) High beacon SNR or low signal. When vessel interference is still present: When the source of the interference is found: • Turn off all electrical devices and equipment on the vessel, then check for improvement. Check fluorescent lights, gauges, and so forth. Be cre- ative! Check for power-line interfer- ence by moving away from the dock and/or the marina. Verify that the antenna is mounted in accordance with the recommendations shown in Figure 6. • Isolate to the interfering device, with breaker panel if necessary, or by physical disconnection, if required. • Experiment with different grounding locations (the best ground is the ocean). Drop a temporary wire attached to 8410 black wire over the side of the vessel to see if the interfer- ence source can be fixed by ground- ing techniques. • Disconnect shore power and move away from the dock and/or marina (power lines and lights can cause interference). • Temporarily relocate the 8410 or combo antenna as far away from the interfering source as possible, and monitor the effect on reception. If it improves, consider relocating the antenna or try to determine if the inter- ference can be eliminated at its source. • Normally, noise that affects an 8410 DGPS coupler won’t affect a combo antenna and vice versa. Consider temporarily changing antenna types to determine the effects on signal reception. Poor, intermittent, or no beacon signal using a known-good loop or combo antenna. • Check the proximity of the antenna to radar antennas or other transmitting devices, such as INMARSAT. A radome can affect H-field antennas even when power is off. Hint: To test for the best location, move the antenna and coax to temporary loca- tions using an over-the-deck length of coax, then relocate as necessary. a. The GPS receiver AA180 supplies the 5.5 VDC to the AN150 active GPS antenna. Table 3: Troubleshooting the GPS/DGPS antenna installation (continued) Antenna Symptom Possible Solutions/Reasons Downloaded from www.Manualslib.com manuals search engine

Page 38 951/952 INSTALLATION MANUAL Revision B b. Testing the GPS portion of the splitter and a combo antenna: When using a combo antenna and split- ter, the splitter gets 7.75 VDC from the beacon receiver, and then feeds the combo pre-amp with that same voltage level. The splitter must have this 7.75 VDC supplied to the differential port in order for the GPS and the differential signal to be passed through the splitter. To test the GPS portion of the combo antenna, disconnect the splitter and plug the combo antenna directly into the GPS BNC con- nector (provided that the 5.5 VDC is present). This troubleshooting technique effectively eliminates the splitter from the equation. If the splitter is bad, GPS may not work when connected normally (provided that the 7.75 VDC from the beacon receiver is present). Note that the combo antenna should never be plugged directly into the GPS port under normal circumstances because the voltage feeding the amplifier is too low and this will result in low GPS signal levels being sent to the GPS receiver. c. The beacon receiver (8500) supplies the 7.75 VDC to the 8410 (in the case of a whip-type antenna installation), or the splitter (in the case of a combo antenna installation), which in turn feeds the combo antenna. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 39 SECTION THREE - Interfacing This chapter includes the information needed to interface the 951/952 to other equipment on the vessel. Major topics include: • interfacing the unit • connecting the unit to other equipment • connecting the unit to other 951s, 952s, and 941s in order to transfer all waypoints and routes • configuring the NMEA output ports • configuring the RS-232 port • uploading software Interfacing the unit The unit is easily interfaced to other equipment as described below. The most common interface data format used with installations today is NMEA 0183, which is a widely accepted standard of data transfer between almost all types of marine electronics, enabling completely dif- ferent instruments to “speak” a common language. The unit has the following ports: • two programmable NMEA input/output ports • one RS-232 input/output port that you can customize for communi- cating data to or from other instruments Connector pin wiring A list of wire designations for the interface connector is displayed on the unit’s PORT SETUP OPTIONS screen, accessed from the USER CUSTOMI- ZATION screen by pressing the   menu key: Downloaded from www.Manualslib.com manuals search engine

Page 40 951/952 INSTALLATION MANUAL Revision B Figure 20: Interface connector (as viewed from back of unit) Table 4: Interface connector pins Description Wire color Pin NMEA PORT 1 INPUT A BROWN 3 NMEA PORT 1 INPUT B BLUE 1 NMEA PORT 1 INPUT GROUND WHITE w/BLUE STRIPE 4 NMEA PORT 1 OUTPUT A VIOLET 12 NMEA PORT 1 OUTPUT B GRAY 7 NMEA PORT 1 OUTPUT GND BLUE w/WHITE STRIPE 8 NMEA PORT 2 INPUT A WHITE w/BROWN STRIPE 6 NMEA PORT 2 INPUT B BROWN w/WHITE STRIPE 2 NMEA PORT 2 INPUT GROUND WHITE 5 NMEA PORT 2 OUTPUT A YELLOW 15 NMEA PORT 2 OUTPUT B ORANGE 11 NMEA PORT 2 OUTPUT GND BLACK 10 RS-232 GROUND TAN 17 RS-232 RX GREEN 16 RS-232 TX RED 18 EXT. GND / FOIL DRAIN WHITE/ORANGE & SHIELD 9 RESERVED ORANGE w/WHITE STRIPE 13 200 PPNM/HONK OUT (Pulses Per Nautical Mile) PINK 14 Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 41 200 ppnm output The unit provides an open-collector transistor output (on pin 14) that’s programmed to produce 200 pulses per nautical mile for those devices requiring this output. The emitter of the NPN transistor is connected to ground, and the collec- tor connects to the output pin side (see Figure 21: ”200 PPNM output,” below). The output can sink 100mA, and can withstand a maximum posi- tive voltage of 50 volts. If the output connects to a highly inductive device (for example, a relay), a spike suppression diode such as a 1N4001 should be connected across the load. Cathode connects to the power side of the device and anode connects to the output pin side. The output produces a negative pulse 80ms wide and supports speeds from zero to 100 knots (clamps at 100kt). Figure 21: 200 PPNM output Configuring the NMEA output ports Each output port can be programmed to meet most any special require- ments of devices that conform to the NMEA 0183—and other—data for- mat specifications. The  function described below allows the selection of the specific 0183 sentences that the 951/952 will transmit. 1. Press the  key until you see the USER CUSTOMIZATION screen. 2. Press the    menu key to display the PORT SETUP OPTIONS screen. Downloaded from www.Manualslib.com manuals search engine

Page 42 951/952 INSTALLATION MANUAL Revision B 3. Press the  or  menu key. On either screen, the unit displays a list of data format control options, as shown below. Check the installation instructions of the equipment to which you’re interfacing for any special requirements. The Northstar factory settings are adequate for most peripheral equipment, but the following options are available, if needed: Table 5: Port setup options Parameter Options OUTPUT FORMAT (see below) choose NMEA 0180, NMEA 0183 V2.0, 0183 V1.5, RAY 0183, DATAM CDX, or NONE NMEA 0183 TALKER ID (see page 45) choose GP, LC, or II, to make the unit look like a GPS receiver, Loran-C receiver, or an “inte- grated instrument” NMEA 0183 LL PRECISION (see page 46) choose hundredths of minutes, thousandths of minutes, or ten-thousandths of minutes Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 43 Setting the output format The unit outputs navigation data in any of several standard formats as required by the receiving, or “listener,” device. Highlight the OUTPUT FORMAT option, then press the   menu key and the
 , and you’ll find the following choices available: NMEA 0180, 0183 V2.1, DATAMARINE CDX, 0183 RAY and NONE. • NMEA 0180 is an infrequently used format, developed in the late 1970’s, required by certain older autopilots. • NMEA 0183 VERSION 2.1 is a general-use interface output format used by most autopilots, radars, plotters, and other equipment. The NMEA 0183 Version 1.5 sentences (BWC, GLL, and RNN) enable the 952X to be backward-compatible with marine equipment previously designed for this earlier version of 0183. For details on using the 0183 format, see ”About NMEA 0183 and RAY 0183” starting on page 43. • DATAMARINE CDX is required by Datamarine’s cross-track-error indicators, the latest of which display distance and bearing to the waypoint. • 0183 RAY is used when transmitting/receiving position information to or from Raytheon equipment. It uses Raytheon’s non-standard NMEA 0183 checksum, where, on output, the checksum isn’t included, and on input to the 951/952, the checksum is ignored. (Note: With the checksum ignored on input, it is possible that the unit may receive contaminated NMEA data when connected to an external Raytheon loran.) Format is supported on Port 1 and Port 2. • The NONE setting is used when the unit isn’t connected to an exter- nal device. About NMEA 0183 and RAY 0183 NMEA 0183 enables GPS and loran navigators, for example, to “talk” to plotters, radars, charting instruments, and other electronics, by means of a common language. OUTPUT RATE (see page 47) choose 2 to 999 seconds for the interval at which data is sent to the external device NMEA 0183 WAYPOINT ID AS (see page 47) choose NAME or NUMBER for the identifier of waypoints sent to the external device NMEA 0183 CHECKSUMS (see page 48) choose ON or OFF for compati- bility with some older devices OUTPUT DATUM (see page 48) choose from a list of datums to apply to your lat/lon coordinates Table 5: Port setup options (continued) Parameter Options Downloaded from www.Manualslib.com manuals search engine

Page 44 951/952 INSTALLATION MANUAL Revision B Displaying NMEA output sentences When you select NMEA 0183 or RAY 0183 as the output format (after pressing the  menu key) and press , a screen is displayed showing all the available NMEA 0183 sentences that the 951/952 can output. Three-letter abbreviations identify each sentence and are listed alphabet- ically. The meanings of the NMEA 0183 three-letter identifiers are defined in the table below. Table 6: 0183 sentence identifiers 0183 identifier Meaning APB Autopilot Sentence “B” BOD Bearing to Destination BWC Bearing & Distance to Wpt. (Great Circle) GGA GPS Fix Data GLC Geographic Position, Loran-C GLL Latitude/Longitude GSA GPS DOP and Active Satellites GSV GPS Satellites In View HSC Heading Steering Command MSS MSK Receiver Signal Status RMA Recommended Min. Sentence A RMB Recommended Min. Sentence B RMC Recom. Min. Specific GPS/Transit Data RNN Navigation Route VTG SOG/COG WCV Waypoint Closure Velocity (SOA) Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 45 The sentences that will be output are followed by the word ON, and those that won’t be output are followed by two dashes to signify that they’re turned off. Some devices can’t handle all these sentences correctly, so you can use this screen to customize the output by turning individual sen- tences to the ON or DASHES (off) setting. In general, you may want to turn on only those sentences used by the particular equipment to which you’re interfacing the 951/952. Turning NMEA output sentences on and off To turn on or off the unit’s NMEA 0183 sentences, first follow the above description to display the 0183 SENTENCE screen, then perform the fol- lowing steps: 1. Press the
  to highlight the sentence you want to turn on or off, then press the  menu key. 2. Press the
  to toggle the sentence on or off, and press to make your selection (or
to leave it unchanged). 3. Repeat for each sentence as desired. When you’re done, press the  menu key to go back to the PORT SETUP screen. If you want to set all the sentences to the factory settings for recom- mended output, press the menu key. If you want to turn on only a select few sentences for output, press the  menu key to turn off all sentences, then turn the desired ones back on. Choosing the NMEA 0183 talker ID Part of the NMEA 0183 standard requires that the equipment you’re interfaced to—the “listener”—knows what type of device is transmitting the data. The talker ID tells the listener that it is receiving information from a navigation source (the 951/952), not a communications or sensor WPL Waypoint Location XTE Cross-track Error ZDA Estimated Time of Arrival ZTG Time-To-Go NOTE: The NMEA ON/OFF item list controls only the Version 2.01 GLL and BWC items, not the 1.5 version of these items. Thus, ON/OFF changes made to the Version 1.5 GLL and BWC out- put items have no effect on the data actually output. Table 6: 0183 sentence identifiers (continued) 0183 identifier Meaning Downloaded from www.Manualslib.com manuals search engine

Page 46 951/952 INSTALLATION MANUAL Revision B device, which transmits completely different and therefore unusable forms of data. The talker ID enables you to configure the unit’s output data to tell the listener it’s receiving data from a loran (LC) or GPS (GP) navigator, or Inte- grated Instrument (II). The choice you make depends on what the listener device is expecting. 1. Check the listener device’s instruction manual to determine which “talker ID” codes it will respond to. 2. At the PORT 1 SETUP or PORT 2 SETUP screen, press the
  to highlight the NMEA 0183 TALKER ID option, then press the   menu key. 3. Scroll through the three choices using the
  to make your selection, and press the  key when done. The interfaced equipment will now receive the 0183 data in the correct nav-source format. Setting NMEA 0183 lat/lon precision For added versatility in communicating with a variety of other devices, you can control the level of precision of the 0183 position information as it is output by the 951/952. The choice you make depends on the equip- ment to which you’re outputting NMEA data. For the number of digits of precision required for that particular device, refer to the manufacturer’s instructions. • XX.XX ’(lat/lon precision to two decimal places/hundredths of min- utes/or 60 feet) • XX.XXX ’ (lat/lon precision to three decimal places/thousandths of minutes/or 6 feet; this is the factory setting) • XX.XXXX ’ (lat/lon precision to four decimal places/ten-thousands of minutes/or roughly ½ foot) The 951/952 conforms to the NMEA version 2.00 standard, and is also compatible with version 1.50. Equipment typically benefiting the most from three and four decimal places of precision are electronic and pen plotting devices. However, most older devices designed to operate with the original 0183 and other formats can only function with two-place pre- cision. 1. At the PORT 1 SETUP or PORT 2 SETUP screen, highlight the NMEA 0183 LL PRECISION option, then press the   menu key. 2. Scroll through the three choices using the
  to make your selection, and press the  key when done. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 47 Changing the output rate The unit lets you use a one-second update interval, a rate of 1 Hz, under limited circumstances, for NMEA and diagnostic data output. Using the 1-Hz output option requires some thought when specifying either NMEA 0183 (NMEA version 2.0) or Raytheon (RAY 0183). Because there isn’t enough time to transmit all available sentences within one second, you must select for output only those that are needed. If you select more sen- tences than can be output in one second, the unit displays the following error message: SORRY, CAN’T DO THAT. TOO MANY SENTENCES FOR 1 SEC INTERVAL If this message is displayed, you must select fewer sentences. There are some applications that require a longer update period. In that case, the unit allows you to increase that span to 999 seconds. 1. At the PORT 1 SETUP or PORT 2 SETUP screen, press the
  to highlight the OUTPUT RATE option, then press the   menu key. 2. Enter your numerical selection, and press the  key when done. Changing the NMEA 0183 waypoint ID Many marine electronic devices (such as radars and electronic plotters) can display the waypoint names, if they’re output by the 951/952. 1. At the PORT 1 SETUP or PORT 2 SETUP screen, press the
  to highlight the NMEA 0183 WAYPOINT ID AS option, then press the   menu key. 2. Change the option from NUMBER to NAME, and press the  key when done. The listening device will now display the six-character waypoint names. NOTE: Setting the output precision to three or four decimal places doesn’t mean that the 951/952 will navigate with that accu- racy. Position information can be output and displayed to four decimal places, but the user’s ability to actually navigate with such accuracy is limited by the accuracy of the Loran and GPS systems (see the Northstar 951/952 Operator’s Manual). Therefore, specifying more decimal places in the data output doesn’t necessarily result in greater navigating accuracy. NOTE: Be sure to verify this capability in the listening device before changing the NMEA WAYPOINT ID AS option. Most older equipment won’t understand this identifier, and using it may cause problems with the display of the waypoint information. Downloaded from www.Manualslib.com manuals search engine

Page 48 951/952 INSTALLATION MANUAL Revision B Setting the NMEA 0183 checksum Certain older devices may not accept sentences containing the NMEA 0183 checksum that’s output by the 951 or 952. In such cases, the device may not operate properly, if at all. If you encounter difficulty when inter- facing to older equipment, the unit offers the flexibility of turning off the NMEA 0183 checksum. 1. At the PORT 1 SETUP or PORT 2 SETUP screen, press the
  to highlight the NMEA 0183 CHECKSUMS option, then press the   menu key. 2. Press the
  to change the setting from  to and press the key when done. Selecting an independent NMEA output-port datum You can adjust output position for NMEA 0183 ports 1 and 2 to specific geodetic datums, independently of the datum you choose for positional display. 1. At the PORT SETUP 1 or PORT SETUP 2 screen, highlight the OUT- PUT DATUM option, then press the   menu key. 2. Scroll through the choices using the
 down to make your selection. To apply this chosen datum to your lat/lon coordi- nates in the NMEA 0183 output sentences, press thekey. Connecting to other equipment Connecting to other Northstar units Two 951, 952, or 941 units can be connected in order to take advantage of the waypoints/routes sharing feature. This convenient feature lets all waypoints and routes be transferred between any combination of two of these units. Using this feature involves three main steps, which you should perform in the following order: 1. Check that each unit you want to share waypoints and routes with is operating with software version 3.12 or higher. To determine the units’ current software version, press the  key until you display the USER CUSTOMIZATION screen is, then press the 
   key to display the SERVICE INFORMATION screen. The MAIN BOARD SOF VER field displays the current software ver- sion. If this version is earlier than 3.12, you must upgrade this unit to version 3.12 before it can share waypoints and routes with another NOTE: There is no standard for identifying how numbers should be assigned when converting waypoints from names to numbers. When you export waypoint information as numbers to a peripheral device, be aware that numbers aren’t sequentially defined and may be re-used on a random basis. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 49 unit. To obtain software version 3.12, call the Northstar Sales Depart- ment to order the Waypoint Database Sharing Upgrade Kit, part number 1500-WDS, which includes step-by-step instructions for installing the software. 2. Connect two units to allow for transferring of all waypoints and routes (call the Northstar Sales Department to order the connector kit, part number 1500-WDS). 3. Transfer all waypoints and routes between the desired units. Connecting the two units Before you can transfer waypoints and routes between the two units, they must be properly connected using the following parts from the Waypoint Database Sharing Upgrade Kit: • 2 boots • 2 ferrite beads • 2 solder-cup-style cable connectors with cable clamp • 2 different size grommets (for different size cables) You also must select a cable, which isn’t included in the kit. Use only Belden 9503 twisted pair cable. Connecting the units involves three main procedures: assembling the cable, terminating the cable, and connecting the cable ends; all are described below. To assemble the cable: 1. Cut the cable to the desired length. 2. Slide the following parts onto each end of the cable, in the following order: NOTE: When transferring waypoints and routes between two units, Northstar recommends that you follow the detailed instructions in the Northstar 951/952 Operator’s Manual, Rev. B (part num- ber GM1500C). Failure to follow these instructions may result in the loss of valuable waypoint and route data. It is highly rec- ommended that you read these instructions before transferring waypoints and routes. NOTE: Remember: Every unit you want to import waypoints and routes to, or export waypoints and routes from, must have the waypoint/route sharing software upgrade (version 3.12) installed. You can’t import waypoints/routes into a unit, or export waypoints/routes from a unit, that doesn’t have the waypoint/route sharing feature, regardless of whether the other unit has the feature. Downloaded from www.Manualslib.com manuals search engine

Page 50 951/952 INSTALLATION MANUAL Revision B • connector backshell • rubber-strain relief boot that fits inside the backshell • twist lock (also known as a quarter turn), ensuring that it’s facing in the correct direction. 3. Trim and prepare the wires for soldering to the connector body. 4. Install the ferrite beads on the appropriate wires. 5. Terminate the cable, as described below. To terminate the cable: 1. Terminate and solder the appropriate wires to the appropriate pins. See Figure 22: ”Aux port interface diagram (wiring side view, solder cup),” below. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 51 Figure 22: Aux port interface diagram (wiring side view, solder cup) 2. Slide the twist lock onto the connector body. 3. Screw the connector backshell to the connector body, and tighten. 4. Install the strain- relief clamp with two screws. 5. Connect both cable ends to a 941/951/952, as described below. CONNECTOR A (connects to unit aux port) Pin number 1 2 3 4 CONNECTOR B (connects to unit aux port) Pin number 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 No connect No connect No connect No connect No connect Aux input A Ground/shield Aux output A Aux input B Aux output B Shield Shield termina- tion Downloaded from www.Manualslib.com manuals search engine

Page 52 951/952 INSTALLATION MANUAL Revision B To connect the cable ends: 1. Plug each end of the cable into the 10-pin ports at the back of each unit. 2. Turn both units on. 3. Test for the proper cable connection: Press the    key; then the    menu key; then the   menu key or   menu key; then the 
 key. The message should read REMOTE LINK OK. If so, the hardware con- nection is now complete. The 941/951/952 units that are connected are now capable of sharing all waypoints and routes between them, but remember: Before transferring waypoints and routes between the two units, you should read the way- point/route sharing operator instructions. Failure to follow these instruc- tions may result in the loss of valuable waypoint and route data. Complete details are provided in the Northstar 951/952 Operator’s Man- ual (part number GM1500C). See Chapter Six, “Creating Waypoints,” and follow the instructions in the section “Moving waypoints and routes between units.” Connecting to an external source of differential corrections As described in the Northstar 951/952 Operator’s Manual, differential cor- rections greatly enhance the accuracy of GPS by improving position fixes to an accuracy of 1-3 meters in most cases. To take advantage of this extra level of precision, if your 951/952 isn’t equipped with an internal differen- tial receiver you can interface it with an external Northstar model 8400, 8401, or 8800 differential receiver (or other source of differential correc- tions). Connect the external Northstar differential receiver to the 951/952 RS-232 port as follows. Table 7: Connecting to an external Northstar beacon receiver 8800 DGPS Sensor 952X Interface Connector Pin 21 (receive) red (RS-232 output) #18 Pin 20 (transmit) green (RS-232 input) #16 Pin 17 (ground) tan (RS-232 ground) #17 8400 DGPS Sensor 951/952 Interface Connector black (receive) red (RS-232 output) #18 white (transmit) green (RS-232 input) #16 orange (ground) tan (RS-232 ground) #17 8401 DGPS Sensor 951/952 Interface Connector yellow (receive) red (RS-232 output) #18 blue (transmit) green (RS-232 input) #16 Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 53 For details about interfacing the unit to the Northstar 8401, you may want to refer to the Northstar 8401 Manual (Part Number GM465). For details about interfacing the unit to the Northstar 8800, you may want to refer to the Northstar 8800/8801 Beacon Receiver Installation Manual (Part Number GM635, Rev. A). For details about connecting to other sources of differential corrections, see the manufacturer’s instructions for wiring information. Now you’re ready to set up the 951/952 to receive the data from the external source, using the RS-232 interface port. 1. Press the  key until you display the USER CUSTOMIZATION screen. 2. Press the     menu key. The following screen will be displayed (information displayed in the RS-232 SETUP option at this time may be different): 3. If you want to receive SC-104 corrections through the unit’s RS-232 interface port, the port information box in the lower center of the screen must read SC-104 IN. If the port is set for anything other than SC-104 IN, press the   menu key, then press the
  to display SC-104 IN, then press the key. 4. Use this same procedure to set the baud rate to match that of the external device, if necessary. (Refer to the external device’s instruc- tions for correct baud rate setting.) The unit is now configured to accept differential corrections from an outside source. Connecting to a Northstar 800 series loran If a Northstar 800 series loran is already available on the vessel, you can connect it to the 951/952 as an ideal source of Loran-C TDs and previ- ously stored waypoint locations. Use the appropriate pin/wire connec- tions and the 800’s setup sequence, each listed below, to initialize the orange (ground) tan (RS-232 ground) #17 Table 7: Connecting to an external Northstar beacon receiver (continued) Downloaded from www.Manualslib.com manuals search engine

Page 54 951/952 INSTALLATION MANUAL Revision B data output to be received by the unit. Port 1 or Port 2 of the unit, or A or B of the 800, may be used. Wire colors refer to the unit’s interface cable. To configure the Northstar 800 for correct output format, execute COM- MAND 83 for output port A, or COMMAND 84 for output port B. Press the lower SELECT button until PRINTER 3 appears in the lower display, and press ENT. Then enter the following sequence to program the output parameters: * Only used if you want the waypoint to which you’re navigating to be automatically transferred to the unit’s waypoint database. For further details, you may want to refer to the Northstar 800/800X Ref- erence Manual (Part Number GM260). Table 8: Connection to Northstar 800 port A 800 OUTPUT Ý ÝÝ Ý CONNECT TO EITHER Þ ÞÞ Þ Port A 951/952 Port 1 951/952 Port 2 Pin 12 brown (#3) white with brown stripe (#6) Pin N blue (#1) brown with white stripe (#2) Table 9: Connection to Northstar 800 port B 800 OUTPUT Ý ÝÝ Ý CONNECT TO EITHER Þ ÞÞ Þ Port B 951/952 Port 1 951/952 Port 2 Pin 7 brown (#3) white with brown stripe (#6) Pin H blue (#1) brown with white stripe (#2) Table 10: Northstar 800 series output port setup At this prompt Press To output this data to the 951/952 SET UP 149 (ENT) 0183 output format (8 bits, no parity, 4800 baud) INTERVAL 1 (ENT) 1 second output rate ITEM 1 13 (ENT) include GTD sentence in output (Loran-C TDs) ITEM 2 26 (ENT) waypoint location* ITEM 3 31 (ENT) include SRS sentence in output (status of received signals) ITEM 4 40 (ENT) include RMA sentence in output ITEM 5 0 (ENT) end of sequence Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 55 Connecting to other devices Connecting with a Yeoman chart plotter To enable the 951/952 to communicate with a Yeoman electronic chart plotter, refer to the table below. Connecting with a radar device The 951/952 can be set to interface with a radar device. The unit supports the NMEA TLL sentence, sometimes referred to as the “rattle” sentence. This sentence lets the unit communicate its position to an interfaced radar device, which tracks a user-defined target. In turn, the interfaced radar device communicates to the unit the target’s position—in lat/lon coordinates—so that you can see the target symbol, displayed as a way- point, right on the CHART screen (after you save the position). The target symbol is displayed with the name -RADAR on the CHART screen, as well as on both the ALPHA and LOCAL waypoints lists (to access these lists, press the    key, then    menu key, then the   menu key until you reach the desired list). On the ALPHA and LOCAL lists, this radar waypoint is displayed with the hours/minutes/sec- onds/day/month/year (for example, 12:50:20-30JUN99) in the descrip- tion field. Setting the anchor-watch alarm honk In the anchor-watch alarm function, you can set the 951/952 to honk, in addition to beep, as long as you’ve connected a honker with pin #14 on the interface connector. See Figure 23 below for the hardware modifica- tion required to support the unit’s honk feature. You can use Radio Shack part number 273-060, or an equivalent. Table 11: Yeoman plotter setup with the unit Ý ÝÝ Ý CONNECT TO EITHER Þ ÞÞ Þ Yeoman wires 951/952 port 1 951/952 port 2 NMEA OUT (white) (DATA A+) NMEA IN (brown #3) white with brown stripe (#6) Data Return (green) (GROUND) white with blue stripe (#4) white (#5) NMEA IN (red) (DATA +) NMEA OUT (violet#12) yellow (#15) RETURN (black) (GROUND) blue with white stripe (#8) black (#10) Downloaded from www.Manualslib.com manuals search engine

Page 56 951/952 INSTALLATION MANUAL Revision B Figure 23: Pin 14 honk alarm interface Once you’ve set the anchor-watch alarm to honk, a continuous honking sequence begins either when your vessel moves outside the specified anchor-alarm radius or when the navigation source (for example, GPS) becomes unavailable. To set the anchor-watch alarm to honk: 1. Press the  key once to display the ALARMS screen (952) or ALARMS & BACKLIGHT screen (951). 2. Press the
  to highlight the HONK OUTPUT option, then press the   menu key. 3. Press the
  to select ANCHOR ALM, then press the  key. If the vessel moves outside the set anchor-alarm radius, then for the next 10 seconds, the exclamation point begins flashing and the alarm auto- matically starts beeping (you’ll hear the beeping only if you’ve set the ALARM AUDIO option on the ALARMS or ALARMS & BACKLIGHT screen to ON). The honk sequence then starts for a total of 3.5 minutes: 1 second of honking followed by 14 seconds of silence; 2 seconds of honking fol- lowed by 13 seconds of silence; 3 seconds of honking followed by 12 sec- onds of silence, and so forth, until the honking is up to 14 seconds followed by 1 second of silence. This 3.5-minute honk cycle repeats for- ever unless you clear the anchor alarm. This honk does not automatically clear with the following conditions: • the vessel moves back into the anchor-alarm radius • you change the anchor-alarm radius • you select a new “drop anchor” position • you turn off the anchor alarm NOTE: For this feature to work, the ANCHOR ALARM option on the ALARMS screen (952) or ALARMS & BACKLIGHT screen (951) must be set to ON. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 57 Instead, you must clear the anchor alarm in either of the following two ways. Option #1: 1. Press the key once to display the ALARMS screen, then press the
 menu key. Option #2: 1. Press the key once to display the ALARMS screen. 2. Press the
  to highlight the HONK OUTPUT option, then press the   menu key. 3. Press the
  to select either 200 PPNM (used to interface to speed log devices), or ALL ALARMS, instead of ANCHOR ALM, then press the key. Honking for all alarms Instead of setting all alarms to beep only, you can set all alarms to honk. This honking starts simultaneously with the flashing exclamation point on the ALARMS screen (952) or ALARMS & BACKLIGHT screen (951). After you set all alarms to honk, the system emits an output sound for half a second, followed by silence for half a second. This repeatable honking sequence stops when the alarms either automatically clear or you manu- ally clear them. To set all alarms to honk: 1. Press the  key once to display the ALARMS screen (952) or ALARMS & BACKLIGHT screen (951). 2. Press the
  to highlight the HONK OUTPUT option, then press the   menu key. 3. Press the
  to select ALL ALARMS, then press the  key. Table 12 below describes how to set the anchor-watch alarm and all other alarms to the desired audio. NOTE: If you want all alarms to honk, you must first set the ALARM AUDIO option to ON. Table 12: Beep and honk settings for all alarms Sound Type Setting(s) Description Beep All alarms Set alarm audio field to ON The unit’s standard alarm beep. Beep Anchor watch Set alarm audio field to ON Set anchor alarm field to ON The unit’s standard alarm beep. Downloaded from www.Manualslib.com manuals search engine

Page 58 951/952 INSTALLATION MANUAL Revision B Configuring the RS-232 port The RS-232 port is used to interface to any of the following: • an external DGPS dif:ferential receiver • an external device that accepts SC-104 differential corrections • a personal computer Connecting to a differential receiver lets the unit receive differential cor- rections through the RS-232 port. This function is useful if the 951/952 isn’t equipped with an internal differential receiver, but you want to navi- gate using differential corrections. If the 951/952 features an internal differential receiver, you can use the RS-232 port to transmit its differential corrections to another device that accepts them. If you want to download waypoints to a personal computer, or have your dealer or Northstar upgrade the 951/952 with new operating software, you can connect to a PC using the RS-232 port. The following sections describe the RS-232 port’s various settings. Using SC-104 out SC-104 OUT outputs differential corrections from the 951XD’s or 952XD’s internal differential receiver to an external device that accepts the stan- dard SC-104 data stream. When using SC-104 OUT, be sure that the BAUD RATE setting also matches the baud rate requirements of the receiving device. Using SC-104 in SC-104 IN accepts differential corrections from any external source trans- mitting the standard SC-104 data stream. Use this setting if the unit isn’t equipped with an internal DGPS beacon receiver and you want to receive differential corrections from an external source. When using SC-104 IN, Honk All alarms Set alarm audio field to ON Set honk output field to ALL ALARMS Exclamation point flashes on the ALARMS screen; the unit simultaneously emits an output sound for half a second, followed by silence for half a second. Honk Anchor watch Set anchor alarm field to ON Set honk output field to ANCHOR ALM For 10 seconds, the exclamation point flashes on the ALARMS/ALARMS & BACKLIGHT screen and the alarm beeps (if alarm audio is on), then the honk sequence starts. Table 12: Beep and honk settings for all alarms (continued) Sound Type Setting(s) Description Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 59 be sure that the BAUD RATE setting also matches the baud rate require- ments of the transmitting device. Using copy port 1 and copy port 2 The COPY PORT function allows you to interface the 951/952 to many personal computers without the need for an RS-422-to-RS-232 converter. Many PC application programs for waypoint/route loading, chart pro- grams, data logging, etc., can be used. The function “copies” the output of the specified port 1 or port 2 data format (NMEA 0180, NMEA 0183, DATAMARINE CDX, or RAYTHEON 0183) to the RS-232 port’s output for direct connection to the computer. 1. Press the  key to display the USER CUSTOMIZATION screen, then press the     menu key. 2. At the PORT SETUP OPTIONS screen, press the  or  menu key to confirm that the port you want to copy is now set to output the desired data format. If necessary, make changes now by pressing the   menu key, pressing when done, and the  menukey to go back to the PORT SETUP OPTIONS screen. 3. At the PORT SETUP OPTIONS screen, if necessary, change the RS-232 SETUP option to display the appropriate COPY PORT 1 or COPY PORT 2 selection by pressing the   menu key, then pressing the
  to change the selection, then pressing the  key. The unit will now copy and output the specified port’s data format through the RS-232 port to an external device. About the diagnostic option The RS-232 port’s DIAGNOSTICoption is for factory diagnosis of 951/952 operating parameters. Do not turn this function on. Using the “port off” setting Use this setting when the RS-232 port’s input or output functions are not needed. NOTE: Switching to SC-104 IN enables the 951X or 952X to receive DGPS corrections from an external source and disables the internal DGPS beacon receiver (if installed). NOTE: The RS-232 diagnostic port may overflow—when it’s config- ured to either COPY PORT1 or COPY PORT2, and one of the copied ports is in 0183 output mode—unless the diagnos- tic port’s baud rate is fast enough to handle the number of characters. Because the diagnostic port’s baud rate can now be changed, the unit will always display this precautionary message before you actually reset the baud rate: WARNING: ALL SENTENCES MAY NOT TRANSMIT AT DIAG BAUD RATE. PRESS “ENTER” TO CONTINUE Downloaded from www.Manualslib.com manuals search engine

Page 60 951/952 INSTALLATION MANUAL Revision B Ordering 951/952 software updates Periodically, Northstar posts 951/952 software-update addenda on its website (www.northstarcmc.com) under the “Manuals” link. For dealers Once Northstar has posted an addendum on its website, dealers who would like the corresponding software update can call the Northstar Sales Department to order the particular update, which is shipped with com- plete installation instructions. When you call, be sure to have the current software version number ready. To access this information about the unit, press the  key until you display the USER CUSTOMIZATION screen, then press the 
   menu key to display the SERVICE INFORMATION screen: The software version is displayed in the MAIN BOARD SOFT VER: field. For end users End users should contact their respective dealer for these updates. North- star doesn’t recommend that end users install software updates because if an update is accidentally installed improperly, it may result in the loss of data and the incorrect functioning of the unit, and this type of repair isn’t authorized under the Northstar warranty. Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 61 APPENDIX A - Technical specifications 951/952 Power Power Source: 10-40 VDC 12 watts nominal (14 watts with differ- ential beacon receiver) Standard supplied fuse: 3 amps GPS receiver Type: 12-channel, continuous tracking L1 Frequency, C/A code (SPS) Sensitivity: C/N0 > 34dB-Hz Navigation Accuracy: 1-3m 2DRMS with Differential 100m 2DRMS w/o Differential (S/A on) Navigation Update Rate: 1 per second Time To First Fix: 30 seconds (typical) Dynamics: Velocity:1800 km/h Acceleration:4 m/sec² Jerk:2 m/sec³ Interfacing • Two bi-directional NMEA I/O ports • One bi-directional RS-232 port • Waypoint upload/download capability (with appropriate software) • Operating software upload • NMEA output sentences: APB, BOD, BWC, GGA, GLC, GLL, GSA, GSV, HSC, MSS, RMC, RMA, RMB, BTG, WCV, XTE, ZDA, ZTG. (Con- forms to NMEA v 2.0 and later. Supports 1.5 GLL and BWC.) • NMEA input sentences: TLL, WPL, and others • Accepts external differential corrections (SC-104 format) • Accepts external loran receiver Downloaded from www.Manualslib.com manuals search engine

Page 62 951/952 INSTALLATION MANUAL Revision B Physical features Display Screen: 320 x 240 pixel (5.75" diag.) High-temperature, backlit, transflexive graphics LCD (full-color, if the 952) Anti-reflection coated to minimize glare Environmental Temperature: 0ºC – 55ºC max for the 951, 0ºC – 50ºC max for the 952, 95% relative humidity, non-condensing IEC compliance The following table applies only to the Northstar 951. Immunity to electromagnetic environment (1988/1992 amend.) Internal DGPS receiver specifications Signal processing Number of Channels: 2 Frequency Range: 283.5–325.0 kHz Tuning Resolution: < 2 Hz Minimum Signal Strength: 1µV/m @ 100bps Dynamic Range > 100 dB Adjacent Channel Rejection: > 50 dB at 1 kHz Acquisition Time: 5 seconds, manual command 15 seconds, automatic warm start 15 minutes, automatic cold start * Table 13: Standards for IEC compliance Evaluation Standard Radiated emis- sions IEC 945 (1995) per 17.3, 17.4 Low temperature IEC945 (1995) per 4.5.4.2.4 Dry heat IEC 945 (1995) per 4.5.2 Damp heat IEC 945 (1995) per 4.5.3 Corrosion IEC 945 (1995) per 4.5.10 Vibration IEC 945 (1995) per 4.5.7 Rain test IEC 529–IPX 5 Downloaded from www.Manualslib.com manuals search engine

951/952 INSTALLATION MANUAL Revision B Page 63 Noise Blanker: Predictive variable length Signal Detection: Acquisition via FLL (frequency-locked loop); tracking via PLL (phase-locked loop) Data processing Demodulation: MSK (Minimum Shift Keying) Data Decoding: Parallel-matched digital filters MSK Bit Rates: 25, 50, 100, 200 (automatically selected) Power requirements Power Consumption:2 Watts AN150 Active GPS Antenna Height: 2.7 inches Diameter: 3.0 inches Weight: 0.5 pounds 8410 Antenna Coupling Unit Height: 11 inches Diameter: 2.6 inches Weight: 1.5 pounds DGPS Whip Antenna: 48-inch fiberglass whip (not supplied) (Shakespeare 4' #173 loaded, or Radio Shack #21-934) Combination GPS/DGPS antenna • Frequency: 1575 MHz ±2 MHz • Finish: Outdoor Weatherable Polymer • Polarization: Right-Hand Circular • Weight: 22 Ounces • Axial Ration 3 dB Max. • Altitude: 12,000 Feet • Noise Figure: 2.5 dB Max. • Temperature: -40º C to +70º C • Impedance: 50 Ohm • VSWR: <2.0 : 1 • Band Rejection 35dB @ 1625 MHz • Power Handling: 1 Watt Downloaded from www.Manualslib.com manuals search engine

Page 64 951/952 INSTALLATION MANUAL Revision B Downloaded from www.Manualslib.com manuals search engine

Page I-1 Index Numerics 8410 ACU AN150 antenna with the 8410 using 23 assembly diagram 23 cables 24 components 23 dimensional drawing 23 evaluating temporary locations before mounting 26 grounding 24 mounting 26 overview 8 p-static, minimizing 27 951/952 bench-testing 7 chart cartridge, proper insertion of 28 connecting to other Northstar units 48 dimensions (side and front) 9 installing 5 interfacing to other equipment 39 ordering spare parts 5 safety concerns while installing 5 servicing the unit 2 RMA number 3 testing and troubleshooting the unit 31 turning the unit off 31 turning the unit on 28 wiring the unit 13 A ACU. See 8410 ACU 6 Alarm anchor 55–57 audible 55–58 AN150 antenna 18 cable length 18 choosing a location 15, 17 dimensional drawing 17 flaring the end of the cable braid 19 overview 7 stripping the coax cable jacket 19 tools needed for installation 18 troubleshooting the installation of 35 wiring 18 AN205-P antenna cable length 20 choosing a location 16 dimensional drawing 20 flaring the end of the cable braid 22 stripping the coax cable jacket 22 troubleshooting the installation of 35 wiring using the splitter 20 Downloaded from www.Manualslib.com manuals search engine

Anchor-watch alarm honk setting 55 Antenna DGPS 8, 14, 25, 26 GPS 6, 14, 15, 17, 18, 19, 21 recommended separation distances 16 troubleshooting installation 35 Antenna, AN150. See AN150 antenna 15 Antenna, AN205-P. See AN205-P antenna 16 B Bench-testing before installing 7 BNC connector 21 C Chart cartridge proper insertion of 29 Chart screen menu keys 28 Checksums 48 COG readings 15 Configuring output ports 41 Copy port 1 and 2, using 59 D Datamarine CDX output format 43 DGPS antenna 8, 14, 25, 26 status screen 31 troubleshooting 33 troubleshooting antenna installation 35 F Flush mounting 11 drilling dimensions 12 Fuse troubleshooting power problems 31 G GPS accuracy 47 and DGPS 23, 52 antenna 6, 14, 15, 17, 18, 19, 21 satellite status screen 30 troubleshooting antenna installation 35 Grounding 25 H Honk alarm settings 56 setting the unit’s alarms to 55 setting the unit’s anchor-watch alarm to 55 Honk, setting the anchor-watch alarm to 56 I Input ports 39, 40, 43, 52, 60 Installing the 951/952 7 Interfacing 200 pulses per nautical mile (PPNM) 41 compatibility 39, 42, 46 connecting with other devices Downloaded from www.Manualslib.com manuals search engine

Page I-3 chart plotters 55 external DGPS receivers 55 radars 55 connector pin wiring 39 port setup 52 L Lat/lon changing the precision settings 46 Loran antenna 17, 27 connecting the unit to a Northstar 800 48 interfacing with GPS 54 M Mounting 8410 ACU 26 AN150 antenna 18 AN205-P antenna 22 flush- and yoke-mounting the unit 11 N Navigation cautions 5, 13, 14, 18, 24, 25 NMEA 0180 output format 42 NMEA 0183 39, 41 checksums 48 lat/lon precision, setting 46 output-port datum 48 sentence identifiers turning on and off 44 talker ID 46 waypoint ID 47 Noise 14, 25, 26 Northstar 800 54 Northstar service department 2 O Output formats 43 Output ports 39, 41 Output rate, changing 47 P Parts, ordering 5 Port setup options connecting to Northstar 800 54 programming the ports 41 RS-232 port 58 wiring info screen 39 PPNM 40, 41 Processor troubleshooting 32 P-static 27 Pulses per nautical mile (PPNM) 41 R Radar interfacing the unit with a radar 55 Raytheon 0183 output format 43 RMA number 3 Downloaded from www.Manualslib.com manuals search engine

RS-232 41, 52, 53, 58 RS-232 port configuring 58 copy port 1 and 2 59 SC-104 in 58 SC-104 out 58 S Satellites waiting for configuration to update 34 SC-104 DGPS corrections 53, 58 SC-104 in/out, using 58 Sentences NMEA 0183 identifers 44 Service department at Northstar 2 SNR (signal to noise ratio) 26 Software updates, ordering 60 Splitter, antenna 21 System lock-ups, troubleshooting 32 T Talker ID 46 TDs (time differences) 54 Technical support 1 TNC connector 18, 19 Transferring waypoints between two Northstar units 48 Troubleshooting the antenna 35 the installation 31 Turning off the 951/952 31 Turning on the 951/952 29 U Updates, ordering 60 V Video, troubleshooting 31 W Warranty statement 3 Waypoints setting identifier (names or numbers) 47 Wiring 951/952 13 installation 15 Y Yoke mounting 11 drilling dimensions 11 Downloaded from www.Manualslib.com manuals search engine

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