PTN D-3002 Operation & User’s Manual

NOTICE: Please read this user manual carefully and take notice of Safety Operation Guide before using this product. Update History Version Date Update Content 1.0 2013.10.09 First version. 2.0 2014.01.20 Update version. This manual is only for operation instruction, not for any maintenance usage. The functions described in this version are updated till January 2014. Any changes of functions and parameters since then will be informed separately. Please refer to the dealers for the latest details. This manual is copyright PTN Electronics Limited. All rights reserved. No part of this publication may be copied or reproduced without the prior written consent of PTN Electronics Limited. All product function is valid till 2014-01.20.

Table of Contents 1. Introduction ................................................................................................................. 1 1.1 Introduction to Digital Conference System......................................................... 1 1.2 Technology ........................................................................................................ 1 1.3 Features ............................................................................................................ 1 1.4 Package Contents ............................................................................................. 1 2. D-3002 Product Appearance ....................................................................................... 2 2.1 Front Panel ........................................................................................................ 2 2.2 D-3002 Rear Panel ............................................................................................ 3 3. D-3002 Connection ..................................................................................................... 4 3.1 Connection Diagram .......................................................................................... 4 3.2 Connect with Discussion Unit ............................................................................ 4 3.3 Connect with Amplifier ....................................................................................... 6 3.4 Connect with Camera ........................................................................................ 6 3.5 Connect with Alarm ............................................................................................ 7 3.6 Connect with Computer ..................................................................................... 8 4. System Settings and Operations ................................................................................ 8 4.1 D-3002 Initialization ......................................................................................... 11 4.2 Settings after Initialization ................................................................................ 11 4.2.1 MIC Value Setting .................................................................................. 11 4.2.2 Mode Value Setting ............................................................................... 12 5. Enter into Main Menu ................................................................................................ 13 5.1 Priority Setting ................................................................................................. 14 5.2 Unit Status ....................................................................................................... 14 5.3 Voting Display Setting ...................................................................................... 16 5.4 Speech Time Setting ....................................................................................... 16 5.5 Camera Security Setting .................................................................................. 17 5.6 Speech Record Setting .................................................................................... 18 5.7 System Setting ................................................................................................ 20 5.7.1 Language Setting .................................................................................. 20 5.7.2 Volume Setting ...................................................................................... 21 I

5.7.3 Voice Mode ............................................................................................ 23 5.7.4 Address Setting ..................................................................................... 23 5.7.5 System Parameters Setting ................................................................... 24 6. Specification ............................................................................................................. 25 7. Troubleshooting & Maintenance ............................................................................... 26 8. Safety Operation Guide ............................................................................................ 27 9. After-sales Service .................................................................................................... 29 II

1. Introduction 1.1 Introduction to Digital Conference System Control unit D-3002 is the core of digital conference system, which is not just to provide power to the other units, but also to realize the communication between the devices and the control software. It can work independently and when works in a complicated meeting room, a computer and control software is needed for convenient operation, and so is a professional operator. By using the latest fully digital technologies, network techniques and the multi-channel digital audio technology, D-3002 revolutionizes conference systems technology and takes the leadership in digital conference system solutions. 1.2 Technology The system uses digital signal processing and transmission technology, and high speed CPUs are built in. The high quality audio signal, control signal and other signal are transmitted through the twisted pair. 1.3 Features  Built-in central control unit for integrated data processing and unit control for discussion unit.  Support audio sampling rate to 32 k, the frequency response of each channel can reach at 20 Hz ~ 20 KHz.  Support audio recording on SD card or USB flash disk.  Support video camera tracking.  Built-in alarm trigger for +5V working voltage.  Limited to 6 microphone inputs in max at one time for delegate units.  Support various occasions with its multiple conference modes.  Supply power to other units by the control unit instead of using batteries.  Voting unit is able to be controlled by the chairman unit with ID A001 instead of PC.  Hand-in-hand technology for stable performance.  LCD screen to show system menus.  Controllable via RS232 or TCP/IP.  Support hot plug.  Easy to store and keep by installed in a standard 19 inches rack. 1.4 Package Contents  1×D-3002  2×Mounting ears  6×Screws (Black)  1×Power cord  1×RS232 cable 1

 4×Plastic cushions  1×User manual Notes：Please confirm if the product and the accessories are all included, if not, please contact with the dealers. 2. D-3002 Product Appearance 2.1 Front Panel Figure 2-1 Front Panel of D-3002 No. Name Description ① Power Power switch, press it after connecting with alternating current power to turn on the power, press it again to turn off. ② SD/USB The left one is for inserting the SD card, and the right one is for inserting the USB flash disk. Choose any one for audio recording when using. ③ Menu buttons a) Menu button  After initial interface after initialization, press it to enter into the main menu.  In setting menu, press it to return to the main menu. b) Up button  In different menu level, press it to enter the previous level.  In speech member setting and time limitation setting, press it to increase the value.  In volume adjusting, press it for volume up. c) Down button  In different menu level, press it to enter the next level.  In speech member setting and time limitation setting, press it to decrease the value.  In volume adjusting, press it for volume down. d) Exit button Exit the menu level by level until it turn to the initialization interface. e) Enter button 2

Used for confirming your settings. ④ LCD Screen Show the system status of the control unit and system menus. ⑤ VOLUME Select one audio type to adjust its volume. ⑥ MODE Switch the speech mode recurrently. Keep pressing it until it turn to the mode you need, and the corresponding LED indicator will be on. (Refer to 4.2.2 Mode Value Setting for detailed description.) ⑦ ACTIVE MICRO’S Determine the capacity of live delegate units, switch recurrently. Keep pressing it until it turn to the number you need, and the corresponding LED indicator will be on. 2.2 D-3002 Rear Panel Figure 2-2 Rear Panel of D-3002 No. Name Description ① DELEGATE 5 RJ45 ports in total (cascade connection), to connect with discussion units, use crossover twisted pairs only. ② Audio input/ outputs  AUDIO IN: line audio input port, XLR female connector, connects with audio source device.  AUDIO OUT: audio output ports, XLR male connector, 4 in total, mixed line audio input (from AUDIO IN) and microphone input audio of active discussion unit, can connect with amplifiers. ③ SDI INPUTS SDI input ports, 4 in total, connects with cameras, to track the person who is speaking in a conference. ④ SDI OUTPUTS SDI output ports, 2 in total. Usually 1 port is used for local monitoring. ⑤ RS485  RS485 IN: connects with camera keyboard (to control the cameras) 3

 RS485 OUT: connects with camera. ⑥ ALARM Connects with alarm. ⑦ FIRMWARE USB type B connector, connects to PC, used for firmware upgrading. ⑧ TCP/IP Connects with PC, to control the whole conference via PC software. ⑨ RS232 The serial port, 9-pin female connector, connects with PC, to control the whole conference via PC control software. ⑩ AC 100V ~ 240V Power port, connect with AC100V~AC240V alternating current power. 3. D-3002 Connection 3.1 Connection Diagram Figure 3-1 D-3002 Connection Diagram 3.2 Connect with Discussion Unit D-3002 has 5 RJ45 ports, which are used to connect with discussion unit. Each 4

discussion unit goes with 2 RJ45 ports. When use, you need to connect one RJ45 port of the first discussion unit to the RJ45 output port of the control unit D-3002. Please connect the discussion unit according to the connection diagram. Figure 3-2 Connection between Control Unit and Discussion Unit The amount of discussion unit that can be applied in one conference system depends on the length of each twisted pair and the amount of RJ45 output ports used. See the table below: Amount of RJ45 output ports used Length of each twisted pair Max amount of discussion units (with default volume) can be connected to each RJ45 output port. Single 100m 18 60m 20 30m 24 2m 40 All ports 2m 30 Note: 1. Crossover twisted pair use only. 2. The amount of discussion unit can be applied in a digital conference system is decided by the control unit’s ability of supplying power. Maximum only 40 discussion units can be applied, but if you use external power relay(s), the amount can reach at 249. 5

3.3 Connect with Amplifier There are 4 audio outputs (XLR male connector) at the rear panel of the control unit D- 3002. Each port can connect with an amplifier. As showed below: Figure 3-3 Connect with Amplifier 3.4 Connect with Camera Baud Rate of D-3002: 9600; Camera Protocol: PELCOP_D/P/ SONY D-3002 is integrated with camera tracking function to provide a multi-functional conference solution for users. By using the PC software or the camera keyboard, you can change its tracking object as you will. (The default tracking object is from SDI input No.4) There are 2 SDI outputs, including 1 regular SDI output and 1 SDI loop output. 6

Figure 3-4 Connect with Camera D-3002 supports custom camera tracking. When running, the control unit will inform the tracking object’s unit ID to a third-party control device, and then the third-party device will control the camera after getting the ID information. The baud rate of D-3002 is 9600. Figure 3-5 Controlled by a Third-party device 3.5 Connect with Alarm Considering of the safety in a conference room, D-3002 provides with an alarm interface to connect with alarm. If the working voltage reaches at +5V, it will trigger the alarm, the LCD screen of D-3002 will show “ALARM”. At that moment, you will not be able to operate D-3002. After you finish dealing with this alarm, it will automatically return to the previous working state. Custom Camera Tracking 7

Figure 3-6 Connect with Alarm 3.6 Connect with Computer The central control unit D-3002 offers a more convenient control way via its RS232 port or TCP/IP port by using our specialized PC software. When using, please install this software on your PC at first, and then run this software and choose one connection way (RS232 or TCP/IP). Please get the software package from our R&D department. Figure 3-7 Connect with Computer 4. System Settings and Operations When you finish installation and connection, you need to set the related parameters of Note: When D-3002 is connected with computer, the whole system will enter into online state. If not, the system is in off-line state. 8

D-3002 before the meeting through the LCD menu and front panel buttons. See below: 9

4.1 D-3002 Initialization Press the power switch to provide power to D-3002, and then the LCD screen will show the initialization information, see as below: Figure 4-2 D-3002 Initialization After the initialization, the LCD screen will display related information, such as “Menu”, “MIC”, “Mode” and so on. As follow: Figure 4-3 Initialization Finished 4.2 Settings after Initialization Press the Enter button to enter the main menu, and Use Up and Down button to switch between the options. After the initialization, you need to set the MIC’s value (live delegate microphones) and Mode value (speech mode) for the conference. MIC and Mode are to limit the delegate unit. MIC determines the capacity of live delegate units (total number of the ones who are able to hold a speech, we just call it “speech capacity” in the following content). And Mode determines what the delegate unit can do when reaches at the maximum speech capacity or not. The following content will show you the detailed information about speech number and speech mode. 4.2.1 MIC Value Setting  Use Up and Down button to switch to the option “MIC”.  Press Enter button to enter into speech number setting interface.  Use Up and Down button to increase/decrease the value of speech number. 11

4.2.2 Mode Value Setting  Use Up and Down button to switch to the option “Mode”.  Press Enter button to enter into speech mode selection interface.  Use Up and Down button to select the speech mode you need. There are five speech modes available, including OPEN, FIFO, Apply, PPT, VOICE, (1) OPEN (queue) a) Not at the maximum speech capacity, delegate unit presses Speak key to begin a speech. b) At the maximum speech capacity, then other delegate units can only apply for the priority to speak. When one live microphone is off, then the delegate unit who firstly enter into the queue will be automatically turned on. (2) FIFO (first in first out) a) Not at the maximum speech capacity, delegate unit presses Speak key to begin a speech. b) At the maximum speech capacity, the last delegate unit entered will replace the first live delegate unit to keep the same capacity. (3) Apply a) Not at the maximum speech capacity, the delegate unit presses the Speak key, it will enter into applying state, and its microphone can only be switched on by the chairman unit of highest right. b) At the maximum speech capacity, discussion unit can still apply a speech until chairman unit A001 permit applying units up to the speech capacity to speak. At that time, the applying operation of rest discussion units will be automatically switched Note: Mode also can be set via the front panel button MODE. The LED indicator will show you the mode you selected. Note: 1. MIC means the total number of live delegate microphones which can be switched on synchronously, the value ranges from 1 to 6. 2. When finish setting the value, the corresponding LED indicator on ACTIVE MICRO’S on front panel will be on. 3. MIC can be set via the front panel button ACTIVE MICRO’S. The LED indicator will show you the number you selected. Value Description 12

off. (4) PTT (push-to-talk) a) Not at the maximum speech capacity, press and hold on the Speak key on the delegate, and then it will be switched on. Release this button to finish speech. b) At the maximum speech capacity, no more delegate microphone will be switched on. (5) VOICE (voice-activated) a) Not at the maximum speech capacity, speak and focus closed to the microphone, and then it will recognize your voice and switch on your microphone. After you finish your speech, the microphone will be automatically switched off when it reaches at the limited speech time. b) At the maximum speech capacity, no more delegate microphone will be switched on. 4.3 Enter into Main Menu Press Menu button in Figure 2-1 to enter into the main menu, see as below. The main menu includes Priority Setting, Unit Status, Voting Display, Speech Time, Camera Security, Speech Record, System Setting. Figure 4-4 Main Menu  Press Menu button to enter into the main menu. After enter a menu, press Enter button to confirm selection.  Use Up and Down button to switch to the menu you need to select. In a menu, Up and Down buttons are used to select one option (e.g. values like Yes, No or some other options) or increase/decrease the value (e.g. volume, speech capacity, time limitation , ID etc) you want to change.  Press Exit button to exit the present menu level by level until it return to the initial interface. Note: 1. When you use Up and Down button to select one option in a menu, if the value you select is “No”, it will return to the previous menu. If it is “Yes” or some other option, please press the Enter button, and then it will confirm your setting and enter into the next interface. 2. You need to press Enter button to confirm your selection or change of settings. 13

4.4 Priority Setting Select “1.Priority Setting” in the main menu, and press Enter button to enter into Priority setting interface. See as below: Figure 4-5 Enable/Disable Priority key  Yes: Enable Priority key, then the chairman unit will be able to mute or switch off any live delegate microphone when press this button.  No: Disable Priority key, it will take no action when press Priority button. Switch to “Yes” and press Enter button to confirm and enter into the next interface. See as below: Figure 4-6 Priority Setting  Mute: If the chairman unit presses the Priority key, all live delegate microphones will be mute until the chairman unit releases the Priority key.  Off: If the chairman unit presses the Priority key, all live delegate microphones will be switched off until the chairman unit releases the Priority key and the delegates need to press Speak key again to continue speaking. 4.5 Unit Status Select “2.Unit Status” in the main menu and press Enter button to enter into the following interface. You can check the status of all discussion units: unit amount, live microphone amount etc. 14

4.6 Voting Display Setting Select “3.Voting Display” in the main menu and press Enter button to enter into Vote result Display setting interface. Figure 4-8 Vote Result Display Setting  Yes: Display vote result, includes the number of approval, against and abstention in detail.  No: Not display vote result, does not show the number of voted, but just show that you’ve already voted or you haven’t had a vote except the chairman unit with ID A001. 4.7 Speech Time Setting Step1. Select “4.Speech Time” in the main menu and press Enter button to enter into time limitation setting interface. See as below: Figure 4-9 Enable/Disable Time Limitation  On: Enable time limitation, the delegate microphone will be switched off when it reaches at the limit.  Off: Disable time limitation, the delegate can speak as long as he wants. Step2. Use Up and Down button to switch to “On”, and press Enter button to enter into time limitation setting interface. See as below: Figure 4-10 Time Limitation Setting Step3. In time limitation setting interface, use Up and Down button to select the value you need, and use Enter button to confirm your selection. 16

Step4. Press Exit button to exit setting interface and it will enter into the following interface: Figure 4-11 Time Limitation Confirmation Step5. Use Up and Down button to switch between Yes and No. Yes is to confirm your settings and exit this menu, No is to exit this menu without saving your settings. 4.8 Camera Security Setting Step1. Select “5.Camera Security” and press Enter button, it will enter into camera tracking interface, see as below: Figure 4-12 Enable/Disable Camera Tracking Step2. Use Up and Down button to switch between Yes and No. If you select No, it will return to the main menu; if you select Yes, then it will enter into tracking mode selection interface shown as below. Figure 4-13 Custom Mode Selection  Custom Mode Use Up and Down button to switch to “Custom Mode”, then press Enter button to enter into following interface. Notice: The value of item “Countdown Warning” should be less than the value of item “Speech Time”. 17

Figure 4-14 Enable/Disable Custom Mode Use Up and Down button to switch between Yes and No, then press Enter button. Yes: Enable custom tracking, more details please reference to 3.4 Connect with Camera. No: Return to main menu interface.  Standard Mode Use Up and Down button to switch to “Standard”, then press Enter button to enter into following interface. Figure 4-15 Tracking Mode Selection Use Up and Down button to select the tracking mode you need and press Enter button to confirm your selection. FIFO: first in first out, it will automatically turn to track the last discussion unit enter in speaking state. When this unit’s microphone is off, it will turn to track the next live discussion unit. VIP: track the unit who has the priority right (all chairman units have the priority right). Free: track the unit which the participant speaks much more loudly automatically. 4.9 Speech Record Setting Step1. Select “6.Speech Record” and press Enter button, it will enter into audio record setting interface, see as below: Figure 4-16 Audio Record Setting 18

Step2. Use Up and Down button to switch between Storage and Open, select one option, and press Enter button to enter into audio record setting interface. a) Select Storage in Figure 4-16: Figure 4-17 Storage Location Selection Use Up and Down button to scan the two options (Ports and Capacity), select one option you need and press Enter button to confirm your selection.  Ports (for storage location): Figure 4-18 Storage Location Priority Selection Select the storage location you need (it will be set as the default location for recorders).  Capacity (for checking the remaining storage space): Figure 4-19 Storage Capacity Checking You can check the size of the recording file and its remaining time. b) Select Open in Figure 4-16, it will enter the interface shown as below: Figure 4-20 Begin/stop Audio Recording Start: start to record Stop: stop recording When you insert your storage (SD card or USB flash disk), the system will pop up an interface like Figure 4-19 and show you the capacity of this storage and the remaining recording time. After 2 seconds, it will exit this interface. 19

While there is no remaining storage space, it will prompt you to change for other storage, showed as below: Figure 4-21 Full Storage Space Prompt 4.10 System Setting Select “7.System Setting” and press Enter button, it will enter into the following interface: Figure 4-22 System Setting It includes system language setting, volume setting, Address setting and system parameters setting. 4.10.1 Language Setting Use Up and Down button to switch to “language”, and then press Enter button to enter into the following interface: Figure 4-23 Language Selection D-3002 supports two system languages: Chinese and English. Select one language and then press Enter button to confirm. The default setting of microphone gain is low, you need to set it higher before recording. Set following the steps: System SettingVolume MIC Gain Note: Language setting mentioned in this document is for menu language. 20

4.10.2 Volume Setting Use Up and Down button to switch to “Volume”, and then press Enter button to enter into the following interface: Figure 4-24 Volume Selection  Unit Mute: mute/unmute audio output  Output VOL: adjust the output volume of the 4 AUDIO output ports on rear panel.  Line In VOL: adjust the volume of the output background music.  MIC Gain: adjust the output gains of All MIC or Active MIC  Unit Volume: turn up/down the volume of all discussion unit a) Unit Mute Setting Use Up and Down button to switch to “Unit Mute” in Figure 4-24, press Enter button to enter the following interface: Figure 4-25 Enable/disable Unit Volume Output Select On or Mute as you need, and then press Enter button. On: enable delegate microphone audio output. Mute: mute the delegate microphone audio output. b) Background Volume Setting Use Up and Down button to switch to “Line In VOL” in Figure 4-24, press Enter button to enter the following interface: Figure 4-27 Background Volume Adjustment Use Up and Down button to adjust the line volume, Up is for volume up, Down is for Note: You can also use the button VOLUME to enter this interface directly. 21

volume down, long press Up/Down button to increase/decrease the volume quickly. c) Output Volume Setting Use Up and Down button to switch to “Output VOL” in Figure 4-24, press Enter button to enter the following interface: Figure 4-27 Line Volume Adjustment Use Up and Down button to adjust the line volume, Up is for volume up, Down is for volume down, press Up/Down button and hold for few seconds to increase/decrease the volume quickly. d) MIC Gain Setting Adjust gain for all MICs or active MICs synchronously. Use Up and Down button to switch to “MIC Gain” in Figure 4-24, press Enter button to enter the following interface: Figure 4-28 Begin to Adjust Microphone Gain You can choose to adjust MIC gain for all MIC or active MIC, press Enter to enter in the setting interface shown as below, then you are able to press Up/Down button to increase/decrease MIC gain. 22

Figure 4-29 Adjusting All Mic/ Active Mic Gain e) Unit Volume Setting Adjust the microphone’s volume for all discussion units synchronously. Use Up and Down button to switch to “Unit Volume” in Figure 4-24, press Enter button to enter the following interface: Figure 4-30 Adjusting Microphone Volume 4.10.3 Voice Mode Use Up and Down button to switch to “3. Voice Mode” in figure 4-22, press Enter to enter into auto closing time setting interface shown as below: Figure 4-31 Auto Closing Time Setting When a delegate unit finished speaking, and didn’t manually turn off the mic, given the silence time exceeds the value set in Auto Closing Time Setting, the mic will be automatically switched off. The value ranges from 01 to 15. 4.10.4 Address Setting Step1. Use Up and Down button to switch to “3.Address” in Figure 4-22, and then press Enter button to enter into the following interface: Figure 4-32 ID Setting Step2. Use Up and Down button to set the first ID (value ranges from 1 to 249), and then press Enter button. Then it will set IDs for all the connected discussion units automatically. 23

Figure 4-33 ID State Step3. In ID setting state, all LED indicators on discussion unit will blink, please press any button (but not the Priority button on chairman unit) to make D-3002 able to recognize your unit and set ID for your unit. Then the LED indicators will be off, and the LCD screen will show you the message that your ID is successfully set. And the ID will be showed on the control unit D-3002. Step4. After finishing setting IDs for all units, please press Exit button. Then the control unit will automatically begin to initialize. After the initialization, it will return to the Manually ID Setting interface. 4.10.5 System Parameters Setting Use Up and Down button to switch to “System Param”, and then press Enter button to enter into the following interface: Figure 4-34 System Parameters a) Set as factory default Use Up and Down button to switch to “FactorySetting”, and then press Enter button to enter into the following interface: Figure 4-35 Set as Factory Default Use Up and Down button to switch to “Yes” or “No”, and then press Enter button. Note: Only when the first ID is A001 and the A001 unit is a chairman unit, will this chairman unit be able to control other units in off-line state. 24

Note: After resetting to factory defaults, cut off the power of digital conference system and all units connected and reenergize them if any new units joined. b) About Use Up and Down button to switch to “About”, and then press Enter button to enter into the following interface: Figure 4-36 Model and Version You can check the product model and its software and hardware version. 5. Specification D-3002 Power Supply AC100-240V 50/60Hz Max Power Consumption 360W Sample Frequency 32KHz Frequency Response 20Hz~20KHz SNR >80dB CMRR <0.05% XLR Audio Output 12dBV XLR Output Impedance >1KΩ Static Power 10W Connection Way Hand-in-hand Control RS232, TCP/IP Color Black Case Dimension W430xH90xD325mm Product Weight 4.3kg 25

6. Troubleshooting & Maintenance 1) If the units cannot be controlled by the front panel buttons, maybe the system is online, please cut off the connection between the control unit and PC. 2) When the control unit is not able to communicate with PC by connecting the twisted pair or RS232 cable:  Maybe the twisted or the RS232 cable is connected loosely or have already been broken, please connect it again or change for another one.  Maybe the COM port number is not the same with the controlled one. 3) If the POWER indicator doesn’t work or no respond to any operation, please make sure the power cord connection is good. 4) If the static becomes stronger when connecting the discussion units, it probably due to bad grounding of the control unit, please check the grounding and make sure if the control unit is connected well, otherwise it would damage the control unit. 5) If the unit cannot be controlled through the front panel buttons or control software, the unit may have already been broken. Please send it to the dealer for repairing. 26

7. Safety Operation Guide In order to guarantee the reliable operation of the equipments and safety of the staff, please abide by the following proceeding in installation, using and maintenance: 1) Read this user manual carefully before you use the device. 2) Keep this user manual for further reference. 3) Before cleaning the device, please turn off the power and the connection between different units. And the cleaning rag MUST be dry and soft. 4) Without permission, DO NOT use any other device or connectors unmatched with this system, in case of accident or increasing the damage of the device. 5) Do not put the device in a place of too hot or too cold. 6) DO NOT splash any chemistry substance or liquid in the equipment or around. 7) Put the device in a place of flat and steady, in case of damage due to vibration. 8) The extension cable should be away from people’s activity range, and no heavy thing upon it is allowed in case of extrusion. 9) As the power generating heat when running, the working environment should be maintained fine ventilation, in case of damage caused by overheat. 10) Cut off the general power switch in humid weather or left unused for long time. 11) Before following operation, ensure that the alternating current wire is pull out of the power supply:  Take off or reship any components of the equipment.  Take off or rejoin any pin or other link of the equipment. 12) The number of delegate units can be connected in digital conference system is 250. Otherwise it may cause some abnormal cases when working. Please contact us if you have any other requirements. 13) As to non-professional or without permission, please DO NOT try to open the casing of the equipment, DO NOT repair it on your own, in case of accident or increasing the damage of the device. TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. 27

To reduce the risk of electric shock, DO NOT open covers by yourself. Refer servicing to qualified electrician only, and operate it reference to this user manual. CAUTION: To reduce the risk of electric shock, DO NOT open covers, no user serviceable parts inside. Refer servicing to qualified service personnel only. WARNING: To reduce the risk of fire or electric shock, DO NOT expose units to rain or moisture. 28

8. After-sales Service 1) If there appear some problems when running the device, please check and deal with the problems reference to this user manual. Any transport costs are borne by the users during the warranty. 2) You can email to our after-sales department or make a call, please tell us the following information about your cases.  Product version and name.  Detailed failure situations.  The formation of the cases. 3) We offer products for all six-month warranty, which starts from the first day you buy this product (The purchase invoice shall prevail). 4) Any problem is same with one of the following cases listed, we will not offer warranty service but offer for charge.  Beyond the warranty.  Damage due to incorrectly usage, keeping or repairing.  Damage due to device assembly operations by the maintenance company non- assigned.  No certificate or invoice as the proof of warranty.  The product model showed on the warranty card does not match with the model of the product for repairing or had been altered.  Damage caused by force majeure. Remarks: For any questions or problems, please try to get help from your local dealer, or to email PTN at: [email protected] 29

Tel: +7-495-660-3921 Tel: +7-800-555-8023 (бесплатный по России) Email: [email protected] Website: www.creator-av.ru 30