Burst Electronics VS8X8 Instruction Manual

8 by 8 Configuration Manual Version 2.11 BURST ELECTRONICS INC ALBUQUERQUE, NM 87109 USA (505) 898-1455 VOICE (505) 890-8926 TECH SUPPORT (505) 898-0159 FAX www.burstelectronics.com Hardware, software and manual copyright by Burst Electronics. All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means without the written permission of Burst Electronics. Made in USA ...

8 by 8 Configuration Product Description The VS8x8 Vertical Interval Video Crosspoint Switch is a digitally controlled matrix of 64 T- Switches that can connect any one of eight video inputs to any, or all, of eight video outputs. The switch matrix utilizes a monolithic, CMOS matrix IC for minimal crosstalk. The VS8x8 can be manually controlled using the front panel controls or remotely controlled via a standard, asynchronous RS232 Serial Interface. The eight video inputs are buffered and DC clamped. A DIP switch on the rear panel allows for 75 Ohm terminations on each input channel. The eight outputs are driven by high speed, u ...

power supply rated at 12 volts, 500mA. Other suitable power supplies in the range of 9 to 15 volts may also be used. The unit has an internal bridge rectifier on the power supply input so that the user need not be concerned with the polarity of the power connector being used. Video Connections BNC connectors for composite video, Mini-DIN for Y/C video. The eight video inputs and eight video outputs are located on the rear panel of the device. An eight position DIP switch is also located on the rear panel to terminate the video inputs with 75 Ohm 1% resistors. Setting the switches in th ...

VS8x8 unit, the serial cable is connected to the rear panel RJ11 connector labeled HOST. For systems using multiple VS8x8’s, the systems are “daisy-chained” by connecting the LOOP (RS232 Out) connector of each unit to the HOST (RS232 In) connector of the next successive unit. Operating Modes Burst Electronics’ default setting is Mode 1. Confirmation of the mode setting is accomplished by noting the number of flashes of the SET LED. Mode 1; the SET LED flashes once, then the LED stays on. Mode 2; the SET LED flashes twice, then the LED stays on. Mode 3; the SET LED flashes three times, then the LED tur ...

Manual Mode (Mode 1) Manual Triggered Mode (Mode 2) Remote Control, single unit (Mode 3) Remote Control, multiple units (Mode 4) The operation mode is selected by setting Channel 1 thumbwheel switch. The unit supports two Manual Modes and two Remote Modes. In Manual Mode, the unit switches the video signals under control of the front panel thumbwheel switches. In Remote Mode, all video switching is controlled by commands sent to the unit using the RS232 interface. The mode settings are as follows: Mode 1: Manual Mode In this mode, the front panel thumbwheel switches are continuously scanned for any changes. When a switch ...

pushbutton before switching the video. The switch is done on the next vertical interval. Mode 3: Single Unit Remote Mode In this mode, all video switching is accomplished by sending commands via RS232 Serial Interface, the front panel thumbwheel switches are disabled in this mode. See the section on Command Description for a detailed description of the remote commands. Mode 4: Multiple Unit Remote Mode This mode is the same as Mode 3, but also supports multiple units (up to 99 units) on the same RS232 interface. Each unit must have a specific Unit Identification Code, and requires a Wake command to be sent ...

The next two front panel thumbwheel switches, Channels 3 and 4, are used to program the Unit Identification Code. In multiple unit remote configurations (Mode 4), this value can be any number from 00 - 99, but care must be taken to insure that all units have a different code. In a single unit system (Mode 3), Channels 3 and 4 have no effect. Example of Switch Setting With the thumbwheel swi ...

appropriate operating mode whenever it is powered up. The unit can be reprogrammed any time and the internal EEPROM is rated for an excess of 10,000 write operations. Operation The following paragraphs detail the operating procedures for each of the four operating modes that can be programmed into the VS8x8 Video Crosspoint Switch. Manual Mode (Mode 1) When operating in this mode, the operator sets the front panel thumbwheel switches corresponding to the specific output channel. Setting the thumbwheel switch to the values of 1 through 8 will connect that video input to the specified output. Setting the thumbw ...

system will turn off the SET LED to indicate a disparity between the thumbwheel switches, and the actual video signal routing. The unit then waits for the operator to initiate the new selection by pressing the front panel LOAD button. This mode prevents erratic video outputs caused by scrolling the thumbwheel switches through the selections. Once the LOAD button is pressed, the unit then sets the new selection (waiting for the vertical sync intervals) and then reactivates the SET LED to indicate that the new selection has been activated. Single Unit Remote Mode (Mode 3) In this mode, the unit is controlled exclu ...

9600 baud. See Command Description on how to communicate to the VS8x8. Multiple Unit Remote Mode (Mode 4) In this mode, two or more units are controlled exclusively by the serial RS232 interface. Routing of the video signals is accomplished by using a host computer to transmit simple commands to set the video outputs. The channel thumbwheel switches are disabled and have no effect on video switching. To configure the VS8x8 for Mode 4, set the thumbwheel switches to : 4101xxxx (x = any number available). This selects mode 4 at 9600 baud and unit ID of 01. Step by step procedure 1. Set Channel 1 switch to 4. ...

be terminated by a carriage return (0Dh) (). All characters that are transmitted to the unit are echoed back to the hosting computer (except for the initial Wake command in mode 4). Sio (Set Input to Output) This command routes an input channel specified by “i” to an output channel specified by “o”. The “i” and “o” characters are single digit values from 0 to 9 (0 and 9 being channel off). There are no spaces allowed. The command is case insensitive, but must be followed by a carriage return. The unit switches immediately after receiving the carriage return, using the s ...

M (Manual) This command is used to place the unit in the Triggered Manual Mode (Mode 2) from the Remote Mode. Once initiated, the unit will remain in the Triggered Manual Mode. To return to the remote mode, transmit an ESC (1Bh) to the unit. SA (Set All Channels) All eight channels are set with this command. Example: SA43215678 will cause output Channel 1 to connect to input Channel 4, output Channel 3 to input Channel 2, etc. If a “X” is placed in a output channel location, that channel will not change from its previous setting. Example: SA43XX5678, output Channels 3 and 4 will stay at their previous se ...

Example: SP (sp) Puts all units to sleep WK,01 (wk,01) Wakes up unit ID 1 SA12345678 Set All command for unit ID 1 SP (sp) Puts all units to sleep WK,02 (wk,02) Wakes up unit ID 2 SA87654321 Set All command for unit ID 2 SP (sp) Puts all units to sleep When VS8x8’s are in Mode 4, they always power up in the Sleep state. Before any unit will respond to RS232 commands, a Wake command must be sent. Setting two or more VS8x8’s to the same ID will control each unit together, but the data returning t ...

Level: 1V p-p nominal Impedance: 75 Ohm, terminated 10k Ohm, unterminated Video Outputs Level: 1V p-p nominal Impedance: 75 Ohm Serial Interface: Standard RS232 (3-wire) Baud: 110,300,600,1200,2400,4800,9600 Data Format: 1 start bit, 8 data bits, no parity Performance Crosstalk: 60dB at 5Mhz Gain: Unity Differential Gain: <0.5% Differential Phase: <1° Bandwidth: 16MHz (-1dB) Electrical Power supply: 9-12 Vdc @ 275mA Dimensions H: 1.75” W: 16.5� ...

15 Cable RJ11 3 5 4 2 RJ11 Device Controlled Yel Grn Red Blk Filename Sheet of Date Drawn by Size Rev SERIAL INTERFACE ADAPTOR A D BURST ELECTRONICS Corrales, New Mexico 87048 3-5-98 WJK 1 1 db9_d.scm SERIAL INTERFACE ADAPTER ( DB9 TYPE ) Title DB9S RJ11W DATA TERMINAL READY 5 3 2 4 DATA IN DATA OUT GND GND 3 2 5 7 8 1 6 4 DATA SET READY CARRIER DETECT CLEAR TO SEND REQUEST TO SEND GROUND RECEIVE DATA TRANSMIT DATA DB9 VIEW RJ11 VIEW 5 1 6 9 1 6 Socket (Female) Type ...

16 Do not print these notes. Cable RJ11 3 5 4 2 RJ11 Device Controlled Yel Grn Red Blk Filename Sheet of Date Drawn by Size Rev SERIAL INTERFACE ADAPTER A E BURST ELECTRONICS Corrales, New Mexico 87048 1.21.03 WJK 1 1 db9_e.scm SERIAL INTERFACE ADAPTER ( DB9 TYPE ) Title DB9S RJ11W DATA TERMINAL READY 5 3 2 4 DATA IN DATA OUT GND GND 3 2 5 7 8 1 6 4 DATA SET READY CARRIER DETECT CLEAR TO SEND REQUEST TO SEND GROUND RECEIVE DATA TRANSMIT DATA DB9 VIEW RJ11 VIEW 5 1 6 9 1 6 Socket (Female) Type Notes: Plot 0.95 Small arc placed at top left to control printer ...