Page 1 ™ Concorde•4500 Servicing Guide This document was created with FrameMaker 4.0.4...
Page 2 VPN is a registered trademark of Sprint. The information contained in this document is subject to change without notice. PictureTel assumes no responsibility for technical or editorial errors or omissions that may appear in this document or for the use of this material.
Page 3 PictureTel Corporation guides and manuals, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
Page 4 You will be advised of your right to ﬁle a complaint with the FCC. In the event of equipment malfunction, all repairs should be performed by PictureTel Corporation or an authorized agent. It is the responsibility of the users requiring service to report the need for service to our company or to one of our authorized agents.
Page 5 Notice to Canadian Users This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications (DOC). Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A prescrites dans le Réglement sur le brouillage radioélectrique édicté...
Page 6 Connection To United Kingdom Telecommunications Network The PictureTel Concorde•4500 (if applicable) is approved to connect to the following United Kingdom (UK) Public Telecommunications Operator (PTO) network services: Indirect connection to PTO-provided digital switched and point-to-point services through suitable approved branch systems.
Page 7: Table Of Contents
Contents About This Guide ..........................xxi Chapter 1 Concorde¥4500 System Overview Introducing the Concorde¥4500 ....................1-1 Concorde¥4500 System Block Diagram..................1-3 Electronics Module ......................... 1-6 Software Cartridge ........................ 1-8 Power Supply......................... 1-8 Fans............................1-11 Monitors ............................1-12 Cameras............................1-12 PowerCam100 ........................1-12 Auxiliary Camera ........................
Page 8 Chapter 2 Understanding the Electronics Module Backplane............................2-1 Communications Board ........................2-9 Control Ports A and B ......................2-9 Video Board............................2-11 Graphics Daughter Board ....................2-12 Audio Board ...........................2-14 Telephone Interface Daughter Board ................2-16 Data Interface Board ........................2-18 Modem Control Signals ........................2-21 Chapter 3 Network Interfaces Concorde¥4500 Network Interfaces .....................3-2 X.21 Network Interface ......................3-4...
Page 9 Receiving a Nondialed Call from an X.21 DCE .............. 3-20 V.25 bis Call Setup and Disconnect.................... 3-21 Placing a Dialed Call with a V.25 bis Interface ............... 3-22 Receiving a Dialed Call from a V.25 bis Data Unit............3-23 Dialing from a V.25 bis Data Unit Keypad ..............3-25 Throughput Limitations.......................
Page 10 Chapter 5 Ordering and Returning Components Ordering Components ........................5-1 Field Replaceable Units ........................5-1 Returning Components ........................5-5 Appendix A Concorde¥4500 Specifications Physical Specifications ........................A-1 Electrical Specifications .........................A-2 Environmental Specifications .......................A-3 Video Specifications ........................A-4 Audio Specifications ........................A-6 Network Specifications........................A-6 Appendix B Pin Assignments PowerCam 100 Cable ........................
Page 11 Appendix C Electronics Module Connections Network Interface Connections ....................C-1 Audio and Video Board Connections ..................C-5 Audio Board Connections ....................C-6 Video Board Connections.....................C-8 Audio and Video Board Cabling..................C-10 Appendix D Control and Data Port Communications Word Length and Parity ....................... D-1 Synchronous and Asynchronous Communication ..............
Page 12 Appendix G Important Information ........................G-1 Glossary ..........................Glossary-1 Index .............................Index-1...
Page 13 Figures Figure 1-1: Concorde¥4500 System ..................... 1-3 Figure 1-2: Concorde¥4500 System Block Diagram..............1-4 Figure 1-2: Concorde¥4500 System Block Diagram (continued) ..........1-5 Figure 1-3: WorldCart and the Electronics Module..............1-6 Figure 1-4: Concorde¥4500 Functional Block Diagram ............1-7 Figure 1-5: Software Cartridge.....................
Page 14 Figure 3-1: Electronics Module and Network Boards...............3-3 Figure 3-2: RS-366A Call Setup (Part 1)..................3-10 Figure 3-2: RS-366A Call Setup (Part 2)..................3-11 Figure 3-3: X.21 Dialed Outgoing Call ..................3-16 Figure 3-4: X.21 Dialed Incoming Call ..................3-18 Figure 3-5: X.21 Nondialed Outgoing Call ................3-19 Figure 3-6: X.21 Nondialed Incoming Call ................3-21 Figure 3-7:...
Page 15 Figure C-5: Cabling for the Audio and Video Boards.............C-10 Figure D-1: Asynchronous Data Format Examples ..............D-2 Figure D-2: Synchronous and Asynchronous Data Patterns........... D-3 Figure D-3: Typical Devices Involved in End-to-End Communication......... D-5 Figure D-4: Typical End-to-End Data with Flow Control............D-7 Figure E-1: Connecting a VCR......................
Page 17 Tables Table 1-1: Power Supply Input ....................1-9 Table 1-2: Power Supply Output Voltages and Currents ............ 1-10 Table 1-3: PowerCam 100 Features..................1-13 Table 1-4: Document Camera Features ................... 1-14 Table 1-5: PowerMic Features ....................1-15 Table 1-6: Physical Specifications for the Wireless Keypad..........1-17 Table 1-7: Physical Specifications for the QuickPad .............
Page 18 Table 4-5: Network or Communications Failure Checklist ..........4-13 Table 4-6: Peripheral Failure Checklist..................4-16 Table 4-7: System Warning Messages..................4-21 Table 4-8: Installation Checklist....................4-26 Table 4-9: Technical Tips ......................4-26 Table 4-10: Loopback Tests ......................4-33 Table 5-1: List of Field Replaceable Units .................5-1 Table A-1: Physical Specifications ....................A-1 Table A-2:...
Page 19 Table D-2: Modem Control Signals ................... D-8 Table F-1: Compression Induced Delay..................F-2 Table G-1: Your Technical Support Information ..............G-2...
Page 21: About This Guide
About This Guide This guide explains how to service and maintain a Concorde¥4500™ videoconferencing system. You should be familiar with the technical aspects of a Concorde¥4500 videoconferencing system to use this guide. This document was created with FrameMaker 4.0.4...
Page 23: Concorde¥4500 System Overview
Concorde¥4500 System Overview This document was created with FrameMaker 4.0.4...
Page 24 This chapter discusses the Concorde¥4500 Electronics module System boards Software cartridge Power supply and fans Cameras, microphones, and keypads...
Page 25: Introducing The Concorde¥4500
Concorde¥4500 System Overview This chapter presents an overview of the major components of a PictureTel Concorde¥4500 videoconferencing system. Introducing the The Concorde¥4500 is a high-performance videoconferencing system. What makes this a quality performing system is the way it Concorde•4500 digitizes and compresses analog video and audio input. This process signiÞcantly lowers the data rates for the transmission of...
Page 26 CONCORDE¥4500 SYSTEM OVERVIEW A line-level audio input Telephone interface board Through the keypad you select the video inputs for transmission and display. The picture-in-picture window (PIP) on a main monitor displays what is being transmitted to the far-end site while the main screen displays the video image from the far-end site.
Page 27: Concorde¥4500 System Block Diagram
Concorde¥4500 System Block Diagram The following illustration shows the Concorde¥4500 system. Power Cam 100 Monitor PowerMIc Speaker Look-At-Me-Button QuickPad HELP STATUS SETUP PRINT CALL/ADD PQRS WXYZ HANG UP CANCEL ENTER VIEW FAR END NEAR END SNAPSHOT SEND MAIN SNAPSHOT PRESETS SHOW ROOM ADJUST FAR END...
Page 28: Figure 1-2: Concorde¥4500 System Block Diagram
CONCORDE¥4500 SYSTEM OVERVIEW Video Board Motion video input Main camera Send vidio DMA channel Input Auxiliary camera Video frame Graphics camera matrix store Document camera VCR in Far-end video Graphics video VCR out Monitor 2 Monitor 1 Merge Motion video output Text overlay memory Merge...
Page 29: Figure 1-2: Concorde¥4500 System Block Diagram (Continued)
Concorde¥4500 System Block Diagram = Option channels HAP4 Coder/decoder Data Interface Port A Communications Port B Port C Port D Transmit Encryption Network interface channel module Receive Dual Decryption from network CTRL A CTRL B System control System control bus Backplane Cartridge Software...
Page 30: Electronics Module
CONCORDE¥4500 SYSTEM OVERVIEW Electronics The electronics module is a self-contained, custom made unit that includes the system electronics, the system software cartridge, and Module the power supply. The electronics module sits in the bottom of the WorldCart. The Backplane, which sits on the bottom of the electronics module, provides the signal connections for the system boards to communicate.
Page 31: Figure 1-4: Concorde¥4500 Functional Block Diagram
Electronics Module Microphones Microphones Power Mic Audio I/O Audio Board VCR Audio Audio compression PT724, G.7xx Phone add-on Echo cancelation, AGC, ANS IR Keypad Video Board Video I/O Video I/O PTZ Camera Video switching, overlays, PIP I/O Snapshot Doc Camera VCR Video Data Interface DTE Device...
Page 32: Software Cartridge
CONCORDE¥4500 SYSTEM OVERVIEW Software Cartridge The software cartridge Þts into a pull-out tray that is located on the back of the electronics module. This cartridge contains the proprietary software that runs the Concorde¥4500. The following illustration shows the software cartridge in the pull-out tray. Software cartridge Figure 1-5: Software Cartridge Power Supply...
Page 33: Table 1-1: Power Supply Input
Electronics Module The following illustration shows the power supply. Power supply Figure 1-6: Power Supply The power supply accepts either 110 volts AC (VAC) or 220 volts VAC without using a switch or jumper. The following table describes the acceptable minimum and maximum input voltages for the power supply.
Page 34: Table 1-2: Power Supply Output Voltages And Currents
CONCORDE¥4500 SYSTEM OVERVIEW The power supply is capable of operating at input voltages F.Y.I. F Y I of below 85 Vrms or between 132 and 180 Vrms without damage. However, at these voltages it is possible for the power supply to shut down. The power supply has three output voltages which can be either switched or nonswitched.
Page 35: Fans
Electronics Module Fans The electronics module uses two fans to exhaust heat from the inside of the module. The set of two fans is enclosed in a bezel that Þts on the front of the electronics module. Power is supplied to the fans through the backplane from the power supply.
Page 36: Monitors
CONCORDE¥4500 SYSTEM OVERVIEW Monitors The Concorde¥4500 is preconÞgured to operate with one monitor; however, a second monitor can be installed. The main monitor displays far-end and near-end videoconferencing sites while the second monitor is used for displaying snapshots and still images. Monitor displays can be either 27Ó- 35 Ó(in the United States) or 29Ó...
Page 37: Auxiliary Camera
Cameras The following table describes the features of the PowerCam 100. Table 1-3: PowerCam 100 Features Feature Description Field of view 66 degrees +/Ð Pan range Tilt range + 15 - 30 Horizontal resolution Minimum 420 lines Zoom range Minimum illumination 7 lux Automatic focus 6 inch (minimum) to inÞnity...
Page 38: Document Camera
CONCORDE¥4500 SYSTEM OVERVIEW Document Camera A document camera is capable of transferring a video image of any document from its viewing stage to the Concorde¥4500. Document cameras can display paper or small three-dimensional objects. Photographic slides and negatives can also be displayed when they are lighted from a separate back lit source.
Page 39: Figure 1-9: Powermic Microphone
Microphones Figure 1-9: PowerMic Microphone The following table describes the features of the PowerMic microphone. Table 1-5: PowerMic Features Feature Description Frequency response 50 - 7000 Hz Audio coverage Audio levels Maintained up to 12 feet Daisy chaining Up to four PowerMics can be daisy chained, using either a 10 foot or 25-foot extension cable.
Page 40: Lapel Microphone
CONCORDE¥4500 SYSTEM OVERVIEW next PowerMic as possible. This helps to avoid sound interference with the internal microphone on the wired keypad. If you are using the wireless keypad it does not matter where you place the keypad in relation to the PowerMic. The wireless keypad does not have an internal microphone like the wired keypad, so there is no potential for sound interference.
Page 41: Quickpad
Keypads LOW BATTERY BROWSE SETUP RECEiVE VIEW HELP FAR END CALL / ADD CHOOSE PQRS WXYZ SEND STATUS SEND SNAPSHOT HANG UP PREVIEW MAIN ENTER CANCEL RECALL SNAPSHOT NEAR MUTE Figure 1-10: Wireless Keypad The following table describes speciÞcations for the wireless keypad. Table 1-6: Physical Speciﬁcations for the Wireless Keypad Size Range...
Page 42: Figure 1-11: Quickpad
CONCORDE¥4500 SYSTEM OVERVIEW HELP STATUS SETUP PRINT CALL/ADD PQRS WXYZ HANG UP CANCEL ENTER VIEW FAR END NEAR END SNAPSHOT SEND MAIN SNAPSHOT PRESETS SHOW ROOM ADJUST FAR END NEAR END ZOOM POINT MUTE VOLUME Figure 1-11: QuickPad The following table describes speciÞcations for the QuickPad. Table 1-7: Physical Speciﬁcations for the QuickPad Size Range...
Page 43: Wired Keypad
Look-At-Me-Button Wired Keypad Although the wireless keypad is standard for the Concorde¥4500, some users prefer the older wired keypad. The wired keypad supports all the features on the wireless keypad except help menus and status messages. The wired keypad has an internal microphone. Look-At-Me- The Look-At-Me-Button (LAMB™) is a wireless device used for presetting camera views with a Concorde¥4500.
Page 45: Understanding The Electronics Module
Understanding the Electronics Module This document was created with FrameMaker 4.0.4...
Page 46 This chapter discusses the Concorde¥4500 Backplane Array Processor boards Communications board Video and Graphics daughter board Audio board Data Interface board...
Page 47: Backplane
Understanding the Electronics Module The electronics module is a self-contained unit that includes the system electronics, system boards, system software cartridge, and the power supply. The electronics module sits in the bottom of the WorldCart. This chapter focuses mainly on the system electronics, system boards, and data ports.
Page 48: Table 2-1: Backplane Features
UNDERSTANDING THE ELECTRONICS MODULE Table 2-1: Backplane Features Feature Description 96-pin DIN 42612 Connects each of eight system boards type-C to the Backplane. Female connectors are Euroconnectors located on the backplane; male connectors are on each board, which connect perpendicular to the backplane.
Page 49: Figure 1-6: Power Supply
Backplane Slot: 8 Empty Communications Empty Full HAP 4 optional Power supply -12V +12V Test points Figure 2-1: Voltage Test Points on the Backplane If you are using an older revision of the Backplane, the test F.Y.I. F Y I points may be different.
Page 50: Figure 2-2: System Boards
UNDERSTANDING THE ELECTRONICS MODULE The following illustration shows the system boards as they are viewed from the rear panel of the electronics unit. KEYPAD MAIN CAMERA V.35 (RS-449) V.35 (RS-449) CONTROLES CAMERA PRINC PAVE DE CONTR CAMERA PRINC RS-449/RS-232 NUMERISCHER HAUPTKAMERA TASTENBLOCK PORT 1...
Page 51 Backplane Table 2-2: System Board Locations (Continued) Board Location Empty Slot 3 Communications Slot 4 Data Interface Slot 5 Video Slot 6 Graphics Slot 7 Audio Slot 8 Empty Slot 9 Wired keypad Slot 10 Camera Slots 11, 12, 13 a.
Page 52: Table 2-3: Functions Of The Ap Boards
UNDERSTANDING THE ELECTRONICS MODULE In a Concorde¥4500 there are two possible conÞgurations using the HAP boards: A single HAP-6 or HAP-8 board with a maximum speed of 15 frames per second (fps). Both a single HAP-6 or HAP-8 board and a HAP-4 board, with a maximum of 30 fps.
Page 53: Figure 2-3: Hap-6 Board
Backplane The following are block diagrams of the HAP-6 and HAP-4 boards. PR0-3 multibus address decode PR0-3 multibus arbiter Clock reset PR4-7 multibus address decode PR4-7 multibus arbiter Interrupt ID reg request register DMA bus_1 DMA bus_0 Multibus data Multibus address Figure 2-3: HAP-6 Board...
Page 54: Figure 2-4: Hap-4 Board
UNDERSTANDING THE ELECTRONICS MODULE PR0-3 multibus address decode PR0-3 multibus arbiter Clock reset Interrupt ID reg request register DMA bus_1 DMA bus_0 Multibus data Multibus address Figure 2-4: HAP-4 Board...
Page 55: Communications Board
Communications Board Communications The Communications board (CP) is located in slot 4 on the backplane. The Communications board supports all network Board communications and loads and executes the system software that controls the operation of the electronics module. This board also controls all power-up and user-selectatable diagnostics.
Page 56: Figure 2-5: Communications Board
UNDERSTANDING THE ELECTRONICS MODULE For the CP board, control port A is used only for controlling F.Y.I. F Y I the Concorde¥4500 and cannot be used to transport transparent data. The following illustration shows a block diagram of the Communications board. Transmit = Option Encryption...
Page 57: Video Board
Video Board Video Board The Video board (VI) is located in slot 6 on the backplane. This board provides an interface to the electronics module for video equipment.The VI board is responsible for capturing motion and still video. The Video board has a Graphics daughter board which is responsible for converting and Þltering graphics video.
Page 58: Graphics Daughter Board
UNDERSTANDING THE ELECTRONICS MODULE The following illustration shows a block diagram of the VI board. DMA bus Multibus DMA bus Graphics overlay frame store Video Camera matrix control Input Output control frame frame store store Send Luma Luma Luma Far-end video Main AVIGA...
Page 59 Video Board The Graphics daughter board performs the following functions: Lets you capture and display a still image, snapshot, or graphic. Accepts decompressed digital graphics data from the Array Processor boards and stores the data in an output buffer. Converts digital data to analog video. Implements test patterns with the VI board.
Page 60: Audio Board
UNDERSTANDING THE ELECTRONICS MODULE The following illustration shows a block diagram of the Graphics board. Output framestore PG 4 Graphics Output Graphics calibration AVIA<11:01> framestore overlay constant EEPROM PG 3 PG 6 PG 4 GAGSD<15:00> GOFSD0<15:00> GRAFIXCS GRXDONE_L GOFSD0<15:00> Luma 5 MHZ GAVAIA<15:0>...
Page 61 Audio Board The AI board also performs the following functions: Provides the interface for audio to the monitor. Controls and mixes the audio input to the keypad microphone(s), PowerMic, optional tabletop or lapel microphones, line-level input (from an external microphone mixer) or a VCR.
Page 62: Telephone Interface Daughter Board
UNDERSTANDING THE ELECTRONICS MODULE The following illustration shows a block diagram of the AI board. Keypad Keypad interface control Local registers and control DSP1610 only input 1 Bank 0 16k x 16 SRAM Stereo input 2 1610 codec Bank 1 Switch Input 16k x 16 SRAM...
Page 63: Table 2-5: Telephone Interface Board
Audio Board Table 2-5: Telephone Interface Board Feature Function Description Network Provides a direct RJ-11 modular jack is used to connection connection to the connect the interface to the public switched network. Also offers a loop- telephone network in through port for the the United States, connection of a standard two- Canada, and Europe.
Page 64: Data Interface Board
UNDERSTANDING THE ELECTRONICS MODULE Table 2-5: Telephone Interface Board (Continued) Feature Function Description Extension Disconnecting a call Using a wired keypad Ð If a call telephone gets disconnected when the button is pressed, the Audio Call call is transferred to the extension telephone (as long as it is off the hook.) The light next to the...
Page 65: Table 2-6: Data Interface Port Speeds
Data Interface Board Loops data output signals back into the data input circuit during a remote video-audio loopback test initiated by the far-end system. The Data Interface board has two RS-232C serial ports, labeled A and B. Two additional ports, C and D, are added as a pair selected from one of the following interface types: RS-232C (data interface) RS-449 (network interface)
Page 66: Figure 2-9: Data Interface Board
UNDERSTANDING THE ELECTRONICS MODULE The following illustration shows a block diagram of the Data Interface board. Port: Daughter board Z80300 Z8030C 80186 DMAC DMAC Multibus Figure 2-9: Data Interface Board 2-20...
Page 67: Modem Control Signals
Modem Control Signals Modem Control The Concorde¥4500 and the control port devices use modem control signals to communicate with each other when they want to send or Signals receive information. This is referred to as handshaking. For example, when a device wants to send data to data port B on the Concorde¥4500, the following scenario takes place: 1.
Page 69: Network Interfaces
Network Interfaces This document was created with FrameMaker 4.0.4...
Page 70 This chapter discusses the Concorde¥4500 network interface ports and Network interface information Call setup and disconnect Throughput limitations...
Page 71 Concorde¥4500. For more information about speciÞc networks, call your network provider. For information on setting up a network, see the PictureTel Network Planning Guide. For information on conÞguring networks, see the Concorde¥4500 AdministratorÕs Guide.
Page 72: Concorde¥4500 Network Interfaces
NETWORK INTERFACES Concorde•4500 Network interfaces are standards that dictate how to connect equipment to a network and allow the equipment to transmit data Network over the network. Interfaces All network equipment used with a Concorde¥4500 must conform to ITU-T or EIA standards. Equipment using networks interfaces other than switched-56 (four-wire 56 kbps) must conform to the following requirements: The appropriate mechanical and electrical network interface...
Page 73: Figure 3-1: Electronics Module And Network Boards
Concorde¥4500 Network Interfaces The following illustration shows the back of the electronics module and the network interface boards. KEYPAD MAIN CAMERA CONTROLES CAMERA PRINC PAVE DE CONTR CAMERA PRINC RS-449/RS-232 NUMERISCHER HAUPTKAMERA TASTENBLOCK PORT EXP AUDIO AUX VIDEO AUDIO AMP VIDEO AUX AUDIO AMP VIDEO AUX...
Page 74: X.21 Network Interface
NETWORK INTERFACES Depending on how a network interface is set up, you can have either a switched or a dedicated network. A switched network is one in which there is a temporary connection between two sites for the duration of a dialed call. A dedicated network, also referred to as a nondialed network, is a permanent connection between two sites that is on all of the time.
Page 75: Switched-56 Network Interface
Concorde¥4500 Network Interfaces Switched-56 Network Interface The switched-56 network is used in the United States only. The four-wire switched-56 communication interface operates at a data rate of 56 kbps on each channel over distances of up to 107 meters (350 feet). This network interface uses two cables with RJ-45 eight pin connectors.
Page 76: V.35 Network Interface
Use a DC-37P connector because of its superior EMI suppression. PictureTel provides RS-366 cables necessary for dialing with this network interface, as well as the two female DC-37 to M-34 conversion adapter cables for the V.35 data ports. The adapter cables are used to send and receive data for each of the two data ports.
Page 77: Rs-449 Network Interface
Concorde¥4500 Network Interfaces See Appendix C, ÒElectronics Module Connections,Ó for information on the V.35 network interface panel. Note: This interface does not include a provision for dialing. However, there are one or two RS-366A ports which can be used to pass dialing information from the videoconferencing system to the external network device.
Page 78: V.25 Bis Network Interface
NETWORK INTERFACES The maximum cable length depends on the data rate being used, as shown in the following table. Table 3-2: RS-449 Interface Maximum Cable Lengths Data Rate Maximum Cable Length 100,000 1,216 meters (4,000 feet) 200,000 758 meters (2,5000 feet) 300,000 455 meters (1,500 feet) 400,000...
Page 79: Call Setup Using Nondialed And Dialed Devices
Call Setup Using Nondialed and Dialed Devices Call Setup Using The Concorde¥4500 operates with both dialed and nondialed network devices. Dialed network calls are placed by pressing numbers on a Nondialed and keypad or keyboard, which are then passed to the telephone Dialed Devices company, who in turn places the call depending on the type of hardware and network conÞguration you have.
Page 80: Figure 3-2: Rs-366A Call Setup (Part 1)
NETWORK INTERFACES Figure 3-2, part 1 and part 2, and illustrate the sequence of events involved in establishing dialed calls using the RS-366A dialing protocol. Note: See Appendix B for the RS-366A pin assignments. Start Dialing command received from the keypad. Concorde•4500 lowers CRQ, Concorde•4500 checks that PWI TR, and RS and sends...
Page 81: Figure 3-2: Rs-366A Call Setup (Part 2)
Call Setup Using Nondialed and Dialed Devices ACR present DSC present? Concorde•4500 lowers CRQ, TR, and RS and sends Concorde•4500 lowers CRQ “Call not completed” and checks for RR and message to monitor. CTS from CSU Start RR and CS present? Network call complete Figure 3-2: RS-366A Call Setup (Part 2)
Page 82: V.35, Rs-449, And Switched-56 Call Setup With Auto Answering
NETWORK INTERFACES Table 3-3: Timeout Values CSU Event Timeout System waits for the Preset Next Digit (PND) signal 4 seconds to be active after asserting the Call Request (CRQ) signal. System waits for the (PND) signal to be inactive 2 seconds after asserting the Data Port Ready (DPR) signal.
Page 83: Nondialed Call Setup With Auto Answering
Nondialed Call Setup with Auto Answering The RS and TR signals are always asserted when the Concorde¥4500 is in PictureTel Ready mode and is set for a nondialed modem in Auto Answer mode. When the TA detects the data signals from the network, it passes them to the Concorde¥4500 and the call is complete.
Page 84: Call Setup And Disconnect
NETWORK INTERFACES When a dialed call is disconnected from the near end: The Concorde¥4500 deasserts the TR and RS signals. The CSU deasserts the RR and CS signals. Then the call disconnect is complete. When a dialed call is disconnected from the far-end: The CSU deasserts the RR and CS signals.
Page 85 X.21 Call Setup and Disconnect 4. When the DCE detects the + character from the Concorde•4500, it stops sending + characters to the Concorde•4500 and starts dialing the number requested, and may send call progress signals to the Concorde•4500. Call progress information identiﬁes events such as dialing and ringing.
Page 86: Figure 3-3: X.21 Dialed Outgoing Call
NETWORK INTERFACES Connection in progress Clear conﬁrmation Ready for data Call Progress provided Proceed to select signals Waiting information Call Clear request Selection request signal Ready Ready Data Transmit Figure 3-3: X.21 Dialed Outgoing Call 3-16...
Page 87: Receiving A Dialed Call From An X.21 Dce
DCE initiate a dialed call and later disconnect the call. 1. When the DCE detects an incoming call, it notiﬁes the Concorde 4500 by sending at least two SYN characters followed by a string of BEL characters on the R signal.
Page 88: Figure 3-4: X.21 Dialed Incoming Call
NETWORK INTERFACES Connection in progress Ready for Clear Indication data provided Incoming call information Call Clear accepted conﬁrmation Ready Ready Data Transmit Figure 3-4: X.21 Dialed Incoming Call 3-18...
Page 89: Placing A Nondialed Call With An X.21 Dce
X.21 Call Setup and Disconnect Placing a Nondialed Call with an X.21 DCE This section describes the sequence of events that occurs when the Concorde¥4500 initiates a nondialed call and later disconnects the call. 1. The Concorde•4500 starts the call by transmitting data and asserting its C signal.
Page 90: Receiving A Nondialed Call From An X.21 Dce
NETWORK INTERFACES Receiving a Nondialed Call from an X.21 DCE This section describes the sequence of events that occurs when the Concorde¥4500 automatically answers an incoming nondialed call. 1. When the Concorde•4500 detects incoming data from the far-end, it answers immediately, asserts the I signal, and places data on the R signal.
Page 91: Bis Call Setup And Disconnect
V.25 bis Call Setup and Disconnect Receive data Ready Ready Data Send transmit data Figure 3-6: X.21 Nondialed Incoming Call V.25 bis Call This section describes the call setup and disconnect processes used when the Concorde¥4500 has a V.25 bis network interface. Setup and Disconnect 3-21...
Page 92: Placing A Dialed Call With A V.25 Bis Interface
NETWORK INTERFACES Placing a Dialed Call with a V.25 bis Interface This section describes the sequence of events that occurs when the Concorde¥4500 initiates a dialed call and later disconnects the call. 1. The Concorde•4500 notiﬁes the data unit that it wants to make a call by asserting the DTR signal.
Page 93: Receiving A Dialed Call From A V.25 Bis Data Unit
V.25 bis Call Setup and Disconnect Call connected - DCE T-link dialog sync dropping Data call transfer ready Dialing command CRN + digits Figure 3-7: V.25 bis Dialed Outgoing Call Receiving a Dialed Call from a V.25 bis Data Unit This section describes the sequence of events that occurs when the far-end videoconferencing system initiates a dialed call and the near end later disconnects the call.
Page 94: Figure 3-8: V.25 Bis Dialed Incoming Call
NETWORK INTERFACES 4. When the connection is established, the data unit asserts the DSR signal. 5. The data transfer phase begins; both the Concorde•4500 and the data unit transfer their data. 6. When the far end disconnects, the data unit deasserts the DSR signal. T-link sync Incoming...
Page 95: Dialing From A V.25 Bis Data Unit Keypad
V.25 bis Call Setup and Disconnect Dialing from a V.25 bis Data Unit Keypad This section describes the sequence of events that occurs during V.25 bis dialing from the data unit keypad. 1. When dialing is complete and the connection is established, the data unit asserts the DSR signal.
Page 96: Throughput Limitations
NETWORK INTERFACES Throughput The Concorde¥4500 functions as a multiplexer by using some of the channel transmission bandwidth to carry the control port Limitations information from one videoconferencing system to another. When data is being transmitted, less bandwidth is available for video and audio transmission.
Page 97: Troubleshooting
Troubleshooting This document was created with FrameMaker 4.0.4...
Page 98 This chapter provides technical tips and describes how to Verify power-on Isolate and solve problems Interpret warning messages Verify electrical current Understand loopback tests...
Page 99: Safety Requirements
Troubleshooting Using the procedures in this chapter, you can monitor system functionality, discover where a problem exists, and initiate recovery procedures to maintain the Concorde¥4500 and keep it running at peak performance. You will also Þnd background information explaining the various types of loopback tests.
Page 100: Required Tools And Test Equipment
TROUBLESHOOTING Cautions Wear a grounded wrist strap when you remove a board. Wrist straps help prevent static electricity from damaging sensitive chips. Do not install substitute parts or modify or customize the system. Take care that nothing obstructs air ßow in and around the electronics module.
Page 101: Diagnostic Procedures
Diagnostic Procedures Diagnostic The Concorde¥4500 system has three levels of diagnostic procedures: Procedures Type of Test When Test Runs System power-on self-tests Automatically when the system is powered on Board-level tests When you choose Run Automatic from the Near-End Tests Self-Test menu Run-time and loopback tests...
Page 102: Verifying Power-On
TROUBLESHOOTING You can also run remote diagnostic tests (by entering remote diagnostics mode), without traveling to a customer site. By initiating the tests along with your customer at the customer site, the test program can reboot the customerÕs system and send data back through an external modem to a PC at your site, where you can quickly analyze the data.
Page 103: Fault Log
Verifying Power-On Fault Log If the system fails during normal operation, the software updates the fault log. The fault log contains a history of system failures and fault codes which identify the failing components. The fault codes are grouped into ranges corresponding to the various components described in the following table.
Page 104: Board Replacements
TROUBLESHOOTING When a fault code appears, it does not always mean that something is seriously wrong. Try rebooting the system if you receive a fault code. This may correct the problem. Board Replacements If a power-on self-test fails after you have rebooted the system and continues to indicate that a board is not functioning properly, you should try reseating the board.
Page 105: No System Power
Basic Troubleshooting Procedures No System Power The following table summarizes the corrective actions that you can follow if your system appears not to have power. Table 4-2: No System Power Checklist If you have these Do this... symptoms... The green LED on the power 1.
Page 106: Figure 4-1: System Power-On Procedure
Fault count <7 Print message Fail On-screen Display “Hit any key to (POST) “Maximum fault continue” count exceeded” Display PictureTel Halt logo Print “System initializing” Display and message log fault codes Initialize system Failure detected Remove message “System initializing”...
Page 107: No Display On The Monitor
Basic Troubleshooting Procedures No Display on the Monitor The following table summarizes the corrective actions that you can follow if your monitor displays no image. Table 4-3: No Display on the Monitor Checklist If you have these Do this... symptoms... No video image.
Page 108 If you have these Do this... symptoms... message 10. Check to be sure the input cables on the back of the monitor PictureTel Ready match. on the screen; the screen is blank. The Video input 1 cable must be plugged into the Video input 1 connector on the back of the monitor.
Page 109: No Audio
Basic Troubleshooting Procedures No Audio The following table summarizes the corrective actions that you can follow if you have no audio. Table 4-4: No Audio Checklist If you have these Do this... symptoms... No system sound. 1. If the far-end keypad is a wired keypad, make sure that the INT MIC switch on the back side of the keypad is set to ON .
Page 110 TROUBLESHOOTING Table 4-4: No Audio Checklist (Continued) If you have these Do this... symptoms... Echoing from the 1. Make sure that the microphones are not placed directly in front of or next to the speaker at both sites. microphones 2. Try to isolate the problem to a single site. Perform a local Channel Loopback test at both sites.
Page 111: Network Or Communications Failure
Basic Troubleshooting Procedures Network or Communications Failure This table summarizes the corrective actions that you can follow if you have network or communications failures. Table 4-5: Network or Communications Failure Checklist If you get Type of this network It means... Do this...
Page 112 TROUBLESHOOTING Table 4-5: Network or Communications Failure Checklist (Continued) If you get Type of this network It means... Do this... message... interface (continued) 4. Replace the network data cables No Channel between the electronics module Connection and the DCE, and redo the local loopback of the near-end DCE: If the test fails, replace the DCE and go to step5.
Page 113 Basic Troubleshooting Procedures Table 4-5: Network or Communications Failure Checklist (Continued) If you get Type of this network It means... Do this... message... interface (continued) If the NS LED is on for either No Channel or both ports, this indicates Connection that the CSUs are not seeing - 48 volts on the receive pair.
Page 114: Peripheral Failure
TROUBLESHOOTING Peripheral Failure This table summarizes the corrective actions that you can follow if you have peripheral failures. Table 4-6: Peripheral Failure Checklist If you have these Do this... symptoms... No video and/or no camera 1. Press PREVIEW for the AUX A or B video source. motion from your auxiliary 2.
Page 115 Basic Troubleshooting Procedures Table 4-6: Peripheral Failure Checklist (Continued) If you have these Do this... symptoms... No video and/or no camera 5. Change the camera cable connection to the Video board: motion from your auxiliary Note: If you are using an older style PTZ camera, and a pan-tilt-zoom (PTZ) camera wireless keypad, step 5 will not work.
Page 116 TROUBLESHOOTING Table 4-6: Peripheral Failure Checklist (Continued) If you have these Do this... symptoms... No audio or video from the 1. Make sure that the VCR tape has both audio and video on it. 2. Make sure the VCR is selected as either a SEND source or a PREVIEW source .
Page 117 Basic Troubleshooting Procedures Table 4-6: Peripheral Failure Checklist (Continued) If you have these Do this... symptoms... System not responding to 1. Hold the keypad up to the camera and then watch yourself in the PIP. You should be able to see IR ﬂashes when you wireless keypad keystrokes press a keypad key.
Page 118: Figure 4-2: Dip Switches For Wireless Keypad
TROUBLESHOOTING The following illustration shows you how to set the DIP switch settings and tells you what the correct DIP switch settings should be on the wireless keypad. For more information, see Installing the Wireless Keypad. 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3...
Page 119: Warning Messages
Warning Messages Warning The following table lists the system warning messages in alphabetical order and gives a probable cause and your recovery Messages action, when needed. You see these messages on the screen preceded by Warning. You can Þnd a listing of all system messages in Appendix D F.Y.I.
Page 120 TROUBLESHOOTING Table 4-7: System Warning Messages (Continued) If you see... It means... Do this... No channel connection Connection to the network 1. Verify that all connections and cabling are secure. interface equipment has been lost. 2. Verify performance of the Communications board with its daughter board.
Page 121 Warning Messages Table 4-7: System Warning Messages (Continued) If you see... It means... Do this... No video input Video input is not being 1. Change the video input source on the keypad. received. 2. Verify that all connections and cabling are secure. 3.
Page 122: Verifying Electrical Voltage
PictureTel Ready Have a licensed electrician verify the electrical voltage, as follows: 1. Make sure that the main AC power cable is not connected to the system, and plug the cable into the wall outlet.
Page 123 Verifying Electrical Voltage 4. Verify that the AC voltage from an additional AC source, used for optional equipment, is equal to the voltage of the main AC power source. Do this by plugging the leads from the digital voltmeter into the system ends of the two cables in each of the following positions: a.
Page 124: Installation Checklist
TROUBLESHOOTING Installation If you are having problems getting equipment to work, be sure that all of the necessary components have been installed. Refer to the Checklist table below and see the documentation that came with each component if you have any questions. Table 4-8: Installation Checklist Component For more information, see...
Page 125 Technical Tips Table 4-9: Technical Tips (Continued) Component Checking audio - far-end Any local telephone company can arrange for you to or long distance have a local network loopback number. If you call a loopback number and get audio, there is a problem with the long distance carrier or the far end.
Page 126 TROUBLESHOOTING Table 4-9: Technical Tips (Continued) Component PowerMic Automatic Gain Control (AGC) and Automatic Noise Suppression (ANS) are performed on telephone add- on calls, but will only affect the far-end video site. ANS reduces noise to a maximum of 12 dB. If you are using a PowerMic and speaking from a distance of 7 or 8 feet, the noise reduction drops under 8 dB.
Page 127 Technical Tips Table 4-9: Technical Tips (Continued) Component Keypads To get into an extended Power-On-Self-Test (POST) from system power-on: 1. Run the POST. 2. POST software determines the codec conﬁguration and displays the conﬁguration on the screen . 3. POST waits about 4 to 5 seconds to determine if a Detector is connected on the CP serial control port.
Page 128: Isolating A Problem With Port 1 And Port 2
TROUBLESHOOTING Isolating a Problem with Port 1 and Port 2 This troubleshooting tip is valid for any type of DCE. F.Y.I. F Y I If you are having a problem with one of the Concorde¥4500 ports, and you canÕt determine whether the problem is with the port, the terminal adapter, or the cable, try the following suggestion.
Page 129: Loopback Tests
Loopback Tests 3. Try flipping the cables at the terminal adapter, since the problem seems to be at this connection. The cable that was originally connected to Port 1 on the Concorde•4500 and Port 1 on the terminal adapter is now connected to Port 2 (on both ends.) Do the same for the other cable.
Page 130: Figure 4-3: Near-End Tests Menu
TROUBLESHOOTING The main objective of loopback tests is to determine if you can receive error-free audio/visual feedback of your site. Since each of these loopback tests involves different parts of the system, you can use the tests to isolate where problems are occurring. When you choose from the Diagnostics menu, View Near End Tests...
Page 131: Figure 4-4: Far-End Tests Menu
Loopback Tests When you choose from the Diagnostics menu, you View Far End Tests see this menu: Far-End Tests View Previous Menu Exit Menu Session Select System Self Test Run Remote Video-Audio Loopback Run Remote CSU Loopback Stop Test Figure 4-4: Far-End Tests Menu * The Run Remote CSU Loopback Test is only present when an ICS-4 board is installed.
Page 132: Running The Local Video/Audio Loopback Test
This test is part of the ITU-T H.320 videoconferencing standards and is used by PictureTel service providers to test PictureTel systems with other vendorsÕ equipment. You must make a call to run this test.
Page 133: Running The Local Channel Loopback Test
Loopback Tests Network Codec Electronics module Figure 4-5: Local Video/Audio Loopback Test Running the Local Channel Loopback Test When you run the local channel loopback test, the audio, video and data signals are passed through the codec, and up to the network interface board and then looped back through the system to your speakers, monitor and data devices.
Page 134: Running The Remote Video/Audio Loopback Test
TROUBLESHOOTING The following Þgure illustrates how the local channel loopback test runs. Network Codec Electronics module Figure 4-6: Local Channel Loopback Test Running the Remote Video/Audio Loopback Test The remote video/audio loopback test requests the far-end system to loop the data after passing it through the codec. This test is part of the ITU-T H.320 videoconferencing standards.
Page 135: Running The Remote Csu Loopback Test
Loopback Tests Running the Remote CSU Loopback Test The remote CSU loopback test is run while a call is in progress. This test directs the near-end signal through the near-end CSU and sends it over the telephone lines to the far-end CSU. The signal then loops through the far-end CSU and back through the telephone lines to the near-end CSU.
Page 137: Ordering And Returning Components
Ordering and Returning Components This document was created with FrameMaker 4.0.4...
Page 138 This chapter describes How to order and return any components that need to be replaced The Field Replaceable Units (FRUs)
Page 139: Ordering Components
Instructions are also given for returning components. Ordering To order components, use part numbers from the following table and use the following address: Components PictureTel Corporation ESD Logistics 100 Minuteman Road Logistics Dock Andover, MA 01810 Field The following table describes all of the Field Replaceable Units (FRUs) for the Concorde¥4500.
Page 140 ORDERING AND RETURNING COMPONENTS Table 5-1: List of Field Replaceable Units (Continued) Part Number Description 370-0190-02 Mon, Clr, 27Ó, W/Spkrs 27Ó monitor 500-0009-04 Pcb, Tstd, Backplane, Concorde Backplane 500-0024-01 Pcb, Tstd, Intfc, Tel, 2 Wi, Concorde U.S. telephone add-on board 500-0057-03 Assy.
Page 141 Field Replaceable Units Table 5-1: List of Field Replaceable Units (Continued) Part Number Description 520-0135-05 Assy, Ebox, NTSC, Reqmnts, S4EX Loaded NTSC E-box 520-0134-06 Assy, Ebox, PAL, Reqmnts, S4EX Loaded PAL E-box 540-0058-03 Assy, Trnky, camr, PTZ, NTSC NTSC PowerCam 100 540-0060-01 Assy, Trnky, IR Kypd, English English wireless keypad...
Page 142 ORDERING AND RETURNING COMPONENTS Table 5-1: List of Field Replaceable Units (Continued) Part Number Description 810-0229-01 Assy, Doc Set, S4500 Assy, Doc Set, S4500 810-0277-01 Assy, Doc Set, S4500, German Assy, Doc Set, S4500, German 810-0286-01 Assy, Doc Set, S4500, French Assy, Doc Set, S4500, French 810-0314-01 Assy, Doc Set, S4500, Japanese...
Page 143: Returning Components
2. Wrap the bag and board in bubble wrap. 3. Place the wrapped board in a shipping carton, using additional bubble wrap, an necessary. 4. Send the shipping carton to PictureTel. To pack small items such as keypads: 1. Wrap the item in bubble wrap.
Page 144 ORDERING AND RETURNING COMPONENTS Use the following address to return components: PictureTel Corporation ESD Logistics 100 Minuteman Road Logistics Dock Andover, MA 01810 You may also return components to the distributor.
Page 145: Concorde¥4500 Specifications
Concorde¥4500 SpeciÞcations This appendix describes the physical, electrical, environmental, video, audio, and network speciÞcations for the Concorde¥4500. Physical The following table lists the physical speciÞcations, such as size, weight, and clearance, for the Concorde¥4500 components. Speciﬁcations Table A-1: Physical Speciﬁcations Clearance Module Height...
Page 146: Electrical Specifications
CONCORDE¥4500 SPECIFICATIONS Table A-1: Physical Speciﬁcations (Continued) Clearance Module Height Width Depth Weight Rear 32Ó 71.8 cm 78.1 cm 58.3 cm 68.2 kg (Not (Not Monitor (28 in.) (30.4 in.) (22.7 in.) (150 lb.) applicable) applicable) WorldCart 79.3 cm 73.6 cm 71.8 cm 71.8 kg (Not...
Page 147: Environmental Specifications
600 volt-amperes (VA) draw Monitor 300 VA Environmental The following table lists the environmental requirements for the Concorde¥4500. PictureTel does not guarantee system performance Speciﬁcations if the Concorde¥4500 operates outside of these requirements. Table A-3: Environmental Speciﬁcations Parameter Category Speciﬁcation...
Page 148: Video Specifications
The following table lists the video speciÞcations for the Concorde¥4500. Speciﬁcations Table A-4: Video Speciﬁcations Parameter Category Speciﬁcation Video algorithms PictureTel proprietary ITU-T standards (px64) H.320 Video coding H.261 Audio coding G.722, G.711, G728, PT724 NTSC or PAL video Composite connector...
Page 149 Video SpeciÞcations Table A-4: Video Speciﬁcations (Continued) Parameter Category Speciﬁcation Videographics SG3, H.320 512 x 480 pixels (NTSC) resolution 512 x 576 pixels (PAL) Video inputs Main camera Y/C or composite Auxiliary cameras Y/C or composite (maximum of two) Document camera Composite VCR Video In Composite...
Page 150: Audio Specifications
CONCORDE¥4500 SPECIFICATIONS Audio The following table lists the audio speciÞcations for the Concorde¥4500. Speciﬁcations Table A-5: Audio Speciﬁcations Transmission Algorithms Bandwidth Audio Bandwidth Category Supported Consumed Bandwidth (kbps) Narrowband (None (A-law or u-law) 56 or 48 300 Hz - 3.4 KHz (toll quality) applicable) G.711...
Page 151: Pin Assignments
The following table lists the pin assignments for the 8-pin DIN camera control interface connector. Note: If you are using an older model PictureTel PTZ camera, which has an 8-pin and a 4-pin connector, you will need to purchase a Y adapter cable (part # 180-0189-01) to connect the camera to the video input connector on the video board.
Page 152: Figure B-1: 8-Pin Mini Din Connector
PIN ASSIGNMENTS Table B-1: Pin Assignments for the PowerCam 8-Pin Connector (Continued) Description Reserved for Genlock (-12 volts) Ground (Y/C chrominance shield) S-VHS Y/C luminance shield + 12 volt input S-VHS Y/C chrominance shield The standard cable for the PowerCam 100 , 5.5 m (18 feet), is F.Y.I.
Page 153: Document Camera Cable
Document Camera Cable Document The document camera uses a 75 ohm video coax cable, which has: Camera Cable a BNC connector on the document camera end to a phono plug RCA adapter cable (part # 510-0192-01) on the codec end, or a YC to YC 4-pin cable (part # 510-0193-01) and a 4-pin to 8-pin adapter cable.
Page 154: Wired Keypad Interface Connector
PIN ASSIGNMENTS Wired Keypad The Concorde¥4500 comes with a wireless keypad. However, some customers still prefer to use the wired keypad. The wired keypad Interface interface uses a 6-wire RJ-11 shielded module jack. A UTP will also Connector work if you require wiring under the ßoor. Table B-2 lists the pin assignments for the RJ-11 jack.
Page 155: Powermic 100 Cable
PowerMic 100 Cable PowerMic 100 The following table lists the pin assignments for the PowerMic 100. Cable Table B-3: Pin Assignments for PowerMic Cable Description Signal ground and power return Microphone audio + 12 volts Microphone audio The cable length for the PowerMic is 7.6 m (24.9 feet) with a F.Y.I.
Page 156: Lapel And Tabletop Microphone Connectors
PIN ASSIGNMENTS Straight on view View from back of electronics module Figure B-4: 7-Pin Mini DIN Connector Lapel and The lapel and tabletop microphones use a 3-pin female miniature XLR cable with 3-pin male connectors to plug into the keypad or Tabletop into the AI board in the electronics module.
Page 157: Table B-5: Pin Assignments For The Pc Serial Data Cable
PC Serial Data Cable The PC Serial Data cable has a 9-pin D Female connector which plugs into the back of the PC and a 25-pin D Male connector which plugs into Control Port B on the CP board or any of the RS-232 ports on the DI board.
Page 158: Network Interface
PIN ASSIGNMENTS Switched-56 Network Interface For information on how to connect to a particular network F.Y.I. F Y I interface, see the Concorde¥4500 AdministratorÕs Guide. This section describes the connectors and pin assignments used for a switched-56 network. To connect a Concorde¥4500 to a dialed CSDC 56 -kb network or to a nondialed DDS network interface you use the RJ-48S, 9-pin modular jack.
Page 159: Figure B-6: V.35 Interface Dc-37 Connector On The Electronics Module
V.35 Network Interface V.35 Network This section describes the V.35 network interface connections and pin assignments. PictureTel provides the necessary female DC-37 to Interface M-34 conversion adapter cables.The adapter cables are connected to the male DC-37 connectors on the electronics module, shown in the following illustration.
Page 160 PIN ASSIGNMENTS Table B-7: Pin Assignments for V.35 Network Data Port (DC-37 Male) Adapter Cable (Continued) V.35 DC-37 Pin Function Source Description Circuit Received line RLSD signal detector Ring indicator (Not applicable) Signal ground The connector panels on the CP board are identical for the F.Y.I.
Page 161: Rs-449 Network Interface
RS-449 Network Interface V.35 (RS-449) DC-37S connector PORT 1 CHAN CTRL DIAL PORT 2 CHAN CTRL DIAL M-34 connector Figure B-7: Adapter Cable and Connection Panel for a V.35 Network Interface RS-449 Network This section describes the EIA RS-449 network interface connections and pin assignments.
Page 162: Table B-8: Pin Assignments For Eia Rs-449 Network Data Port Using A Belden 9737 Cable
PIN ASSIGNMENTS The following table lists the pin assignments for the EIA RS-449 network interface using a Belden 9737 cable. Table B-8: Pin Assignments for EIA RS-449 Network Data Port Using a Belden 9737 Cable Function Source Description Ground Shield Protective ground 3, 21 +, EC -...
Page 163: Table B-9: Pin Assignments For Eia Rs-449 Network Data Port Using A Belden 9731 Cable
X.21 Network Interface When the network interface or DCE does not require handshake or encryption-control signals from the Concorde¥4500, and When the cost of long cable runs for a full EIA RS-449 implementation is prohibitive. When you use a Belden 9731, you cable only the signals listed in the following table.
Page 164 PIN ASSIGNMENTS Table B-10: Pin Assignments for X.21 Network Data Port (Continued) Circuit Description Receive A Indication A Signal element timing A Byte timing A Common return Transmit B Control B Receive B Indication B Signal element timing B Byte timing B B-14...
Page 165: Bis Network Interface
V.25 bis Network Interface The following illustration shows the X.21 network interface connector which is located on the electronics module. 10 11 12 13 14 15 Figure B-9: X.21 Interface Connector on the Electronics Module V.25 bis Network This section describes the V.25 bis network interface cable and connectors.
Page 166: Figure B-10: Cable Between The V.25 Bis Network Connection Panel And A Data Unit
PIN ASSIGNMENTS V.25 bis DA-15 connector CTRL PORT CTRL PORT M-34 connector Figure B-10: Cable Between the V.25 bis Network Connection Panel and a Data Unit The following table lists the pin assignments for the DA-15 and M-34 connectors and shows the signal ßow. Table B-11: Pin Assignments for Signal Flow Between the DA-15 and M-34 Connectors DA-15...
Page 167 V.25 bis Network Interface Table B-11: Pin Assignments for Signal Flow Between the DA-15 and M-34 Connectors (Continued) DA-15 M-34 Signal Description (DTE) Source (DCE) Circuit Data set ready Data terminal ready Concorde¥4500 Transmit data A Concorde¥4500 Tx A Transmit data B Concorde¥4500 Tx B Receive data A...
Page 168: Rs-366A Network Dialing Port
PIN ASSIGNMENTS RS-366A Network The following table lists the pin assignments for the RS-366A network dialing port. Dialing Port Table B-12: Pin Assignments for RS-366A Network Dialing Port Circuit Description (Not applicable) Shield Digit present Abandon call and retry Call request Present next digit Power indication Signal ground...
Page 169 RS-366A Network Dialing Port Table B-12: Pin Assignments for RS-366A Network Dialing Port (Continued) Circuit Description Send common (Not applicable) Unassigned (Not applicable) Unassigned Data line occupied (Not applicable) Unassigned (Not applicable) Unassigned (Not applicable) Unassigned B-19...
Page 171: Electronics Module Connections
Electronics Module Connections This appendix provides illustrations of the back panel of the electronics module and includes illustrations of the connectors for the Audio and Video boards and cabling for the boards. Network Interface Details of the following network interface connections are included in this section: Connections Switched-56...
Page 172 ELECTRONICS MODULE CONNECTIONS...
Page 173 Network Interface Connections...
Page 174 ELECTRONICS MODULE CONNECTIONS...
Page 175: Audio And Video Board Connections
Audio and Video Board Connections Audio and Video The following illustration shows the connections for the Audio and Video boards. Board Connections KEYPAD MAIN CAMERA CONTROLES CAMERA PRINC PAVE DE CONTR CAMERA PRINC NUMERISCHER HAUPTKAMERA TASTENBLOCK EXP AUDIO AUX VIDEO AUDIO AMP VIDEO AUX AUDIO AMP...
Page 176: Audio Board Connections
ELECTRONICS MODULE CONNECTIONS Audio Board Connections The following table shows the Audio board connection labels and describes the functions of the connections. Table C-1: Audio Board Connections Connection Label Function Connects the wired keypad. Connects the PowerMic microphone. A 3-pin mini DIN that connects to an optional microphone.
Page 177 Audio and Video Board Connections Table C-1: Audio Board Connections (Continued) Connection Label Function An RCA connection that connects the audio from a VCR to the Concorde¥4500. An RCA connection that connects the audio from the Concorde¥4500 to a VCR. Connects to the internal speaker.
Page 178: Video Board Connections
ELECTRONICS MODULE CONNECTIONS Video Board Connections The following table shows the Video board connection labels and describes the functions of the connections. Table C-2: Video Board Connections Connection Label Function An 8-pin mini DIN that connects to the main camera. An 8 pin mini DIN that connects to an auxiliary camera.
Page 179 Audio and Video Board Connections Table C-2: Video Board Connections (Continued) Connection Label Function An RCA connector that connects the video from the Concorde¥4500 to a VCR. An RCA connector that connects video to the main monitor. An RCA connector that connects video to the optional second monitor.
Page 180: Audio And Video Board Cabling
ELECTRONICS MODULE CONNECTIONS Audio and Video Board Cabling The following illustration shows the cabling for the Audio and Video boards. Wireless keypad (standard) Wired keypad (optional) Document camera (optional) PowerMic microphone Play VCR (optional) Main camera KEYPAD MAIN CAMERA CONTROLES CAMERA PRINC PAVE DE CONTR CAMERA PRINC...
Page 181: Control And Data Port Communications
Control and Data Port Communications This appendix describes some background information necessary for understanding data communications. Word Length and Word length refers to the number of bits that make up one word of data. A word is usually 7 or 8 bits and includes the bits between the Parity start bit and the stop bit.
Page 182: Synchronous And Asynchronous Communication
CONTROL AND DATA PORT COMMUNICATIONS 7 Data bits with no parity Stop bits 7 Data bits with parity Stop bits 8 Data bits with no parity Stop bits 8 Data bits with parity Stop bits Figure D-1: Asynchronous Data Format Examples The Concorde¥4500 handles 7 data bits with parity the same F.Y.I.
Page 183: Baud Rate
Baud Rate Asynchronous communication uses start bits and stop bits to regulate data transfer. The sender precedes each word of data with a start bit and ends each word with one or more stop bits. When the receiver senses the arrival of start bits, it can identify the real data that follows immediately after the start bits.
Page 184: Data Port End-To-End Delay
CONTROL AND DATA PORT COMMUNICATIONS peripheral devices support baud rates in increments such as 300, 600, 1200, 2400, 4800, 9600, or 38.4 baud. Data Port End-to- The Concorde¥4500 introduces a certain amount of end-to-end transmission delay. End Delay End-to end transmission delay is due to the following factors: Buffering (especially with synchronous communication) Multiplexing (since data may accumulate for up to an entire frame before being transmitted)
Page 185: Flow Control Between Dte Devices
Flow Control Between DTE Devices Flow Control This section illustrates how the Concorde¥4500 ßow control scheme regulates the ßow of data between the near-end and far-end DTE Between DTE devices connected to data ports on the Concorde¥4500. Devices The following Þgure shows typical devices involved in an end-to- end communication.
Page 186: Hardware Flow Control
CONTROL AND DATA PORT COMMUNICATIONS Table D-1: Summary of Supported Flow Control Methods Disabled by Control Asserted Method Condition Ignore Flow Control? Hardware Clear to Send (CTS) Near-end device Nothing to send RTS low Near end Buffer > 1/2 full Far end Data Terminal Far-end device...
Page 187: Figure D-4: Typical End-To-End Data With Flow Control
Flow Control Between DTE Devices RX DTE RX Concorde 4500 TX Concorde 4500 TX DTE Input Data in Buf < buff full O/P buffer full DTR ? RX data RX data Send Buffer Send Buffer Send Buffer valid invalid data...
Page 188: Software Flow Control
CONTROL AND DATA PORT COMMUNICATIONS Table D-2: Modem Control Signals Signal Description Data Terminal Ready. The terminal device asserts the DTR signal to indicate that data can be accepted. The terminal device deasserts the DTR signal to indicate that it cannot accept data. Data Set Ready.
Page 189 Flow Control Between DTE Devices ASCII codes DC1 and DC3 (decimal 17 and 19 in the ASCII code table), provide the ßow control functions transmit on (or Xon) and transmit off (or Xoff) respectively. The Concorde¥4500 sends a DC1 (Xon) code to signal the device to start or resume sending data.
Page 191: Connecting A Vcr
Connecting a VCR This appendix shows you how to connect one or two VCRs to the Concorde¥4500. You can connect one or two VCRs to the Concorde¥4500 for recording and playing a videotape. If you connect one VCR, motion video can be sent from the VCR to the far-end videoconferencing system, or the videoconference can be recorded.
Page 192: Figure E-1: Connecting A Vcr
CONNECTING A VCR 4. Plug one of the RCA-to-RCA cables (that come with the VCR) form the AUDIO IN connector on the VCR to the VCR OUT connector on the Concorde•4500 Audio board. 5. Plug the other RCA-to-RCA cable from the AUDIO OUT connector on the VCR to the VCR IN connector on the Concorde•4500 Audio board.
Page 193: Connecting Two Vcrs
Connecting Two VCRs Connecting Two When two VCRs are connected, one is referred to as the Record VCR, while the other is called the Play VCR. VCRs To connect two VCRs to the Concorde¥4500: 1. Power down the videoconferencing system. 2.
Page 194: Figure E-2: Connecting Two Vcrs
CONNECTING A VCR KEYPAD MAIN CAMERA CONTROLES CAMERA PRINC PAVE DE CONTR CAMERA PRINC NUMERISCHER HAUPTKAMERA TASTENBLOCK EXP AUDIO AUX VIDEO AUDIO AMP VIDEO AUX AUDIO AMP VIDEO AUX ERW. AUDIO ZUS. VIDEO MIC A AUX GRAPHICS MICRO A GRAFICOS AUX MICRO A GRAPHIQUES AUX MIKRO A...
Page 195: Connecting A Stereo Vcr
Connecting a Stereo VCR Connecting a To connect a stereo VCR to the Concorde¥4500, you must use the following cables: Stereo VCR Two 20-centimeter (8-inch) 1 RCA female to 2 RCA male connector ÒYÓ adapter cables One 1.9 meter (6-foot) male RCA to male RCA patch cable with 4 RCA connectors on each end These cables can be purchased at any electronics store.
Page 197: Frequently Asked Questions
Frequently Asked Questions This appendix lists some of the questions that customers frequently ask about the Concorde¥4500 videoconferencing system. You may Þnd these questions and answers helpful when you are visiting a site. The following sections are grouped according to some of the more common questions that the Technical Support center has answered.
Page 198: Algorithms
FREQUENTLY ASKED QUESTIONS Algorithms Q. Are there published ﬁgures on compression induced delay? A.Yes. See the following table for approximate values for a call being made from one Concorde¥4500 to another Concorde¥4500. Table F-1: Compression Induced Delay Frames Per Compression Network Interface Second Induced Delay...
Page 199: Peripherals
Peripherals Peripherals Q. Can a 35” monitor be put onto a WorldCart? A.Yes, a 35” monitor can be put onto a WorldCart only in the United States and Canada. Q. Does the Concorde•4500 support Annex-D graphics? A. Yes, the Concorde•4500 does support Annex-D graphics; however, the display is limited to 2 x CIF vertical and 1.5 x CIF horizontal.
Page 200 FREQUENTLY ASKED QUESTIONS Q. On the wired keypad, can you switchhook an audio call? Can you do the same with the wireless (IR) keypad? A.You can switchhook an audio call with the wired keypad. With the IR keypad, there is no way to switchhook an audio call. To do this, you must go through the required menus.
Page 201 Important Information This appendix addresses the types of questions that a Technical Support person may ask a customer when the customer calls the Technical Support center. Table G-1 lists the areas of information that the Technical Support person may ask questions about. If you are at a site servicing a call, it would be helpful if you could copy and fill out the table for the customer.
Page 202 Termination Type 1) BRI line that terminates the ISDN line from the central ofÞce and provides the interface into which you can plug in the PictureTel system. Do you have one? Switch type Switch type provided by the local telephone company.
Page 203 Table G-1: Your Technical Support Information (Continued) Category Description Your Information Service type Service type provided by the local telephone company. Software revision The software revision of your switch. Service Provider ID Alphanumeric numbers that uniquely (SPID) identify the services you ordered. Also known as a label identiÞer.
Page 205 Glossary analog data In telephone transmission, the data or signal being transmitted (voice, video, or image) is very similar to the original signal. See also digital data. Automatic Calling Unit (ACU) A device used to dial a telephone; now built into smart modems. bandwidth The frequency range between the lowest and highest frequencies that are passed through a component, circuit, or system.
Page 206 byte An eight bit unit also called an octet. call records The set of parameters that deÞne necessary information to place a videoconferencing call through an IMX. central ofÞce (CO) The telephone switching ofÞce closest to the customer site. The central ofÞce serves businesses and residences connected to its looped lines.
Page 207 data circuit-terminating equipment (DCE) A term that refers to the network side of a communications link. data terminal equipment (DTE) A term that refers to the terminal side of a communications link. data terminal ready (DTR) An RS-232 signal that indicates the terminal is ready to communicate. DB-25 The 25-pin connector ordinarily used for RS-232.
Page 208 Any component or group of components within a system that can be replaced by a Þeld service representative. high-speed data port A data port on the IMX that connects to PictureTel equipment and supports data rates of only 56 or 64 kbps. IMUX port A data port on the IMX that connects to PictureTel equipment and supports data rates of Nx56 or Nx64 kpbs (56 to 366 kbps or 64 to 384 kpbs).
Page 209 The capability to phase align and synchronize several high-speed network transmissions of 56 or 64 kbps into a single, high-speed videoconferencing stream for PictureTel equipment. For example, six 64 kbps lines can be used to form the equivalent of a single 384 kbps stream.
Page 210 multiplexer A device that divides the bandwidth of a channel by frequency or time to enable multiple devices to share the channel. multipoint bridge A set of highly integrated, software-controlled data communications components that enable more than two videoconference sites to participate in a videoconference. multipoint videoconference A videoconference in which more than two sites can participate at one time.
Page 211 pulse dialing A method of dialing on public switched telephone networks that uses a series of audible pulses to represent individual telephone number digits. Each telephone number digit, 0-9, is represented by the corresponding number of pulses. RJ-11 The small, plastic, four-wire plug on a telephone set. RS-232C A set of standards that deÞnes the mechanical and electrical characteristics for connecting DTE and DCE data communications devices.
Page 213 Index baud rate, definition of D-3 peripheral devices D-3 adapter, for PTZ camera B-1 Belden cable amber LED 3-5 9731 B-12 9737 B-12 Annex-D graphics F-3 Bit Error Rate 3-2 asynchronous communication, definition of D-2, D-3 block diagram Audio board 2-16 Audio board Communications board 2-10 cabling C-10...
Page 214 buffer space D-4 camera failure, corrective actions 4-16 buffering D-4 components optional 1-2 ordering and returning 5-6 standard 1-2 cable compression induced delay F-2 adapter for V.35 network interface B-11 connecting PC to Concorde¥4500 B-6 Belden 9731 B-12 Belden 9737 B-12 connecting stereo VCR E-5 DC-37 to M-34 conversion 3-6 connector...
Page 215 data unit 3-8 flipping cables 4-30 data unit keypad 3-25 flow control 3-26 daughter board four-wire CSDC interface connector pin Graphics 2-11, 2-12 assignments B-8 telephone add-on 2-16 FRU 1-2 DC-37 connector B-9 dedicated network, definition of 3-4 diagnostics tests, running remote 4-4 Graphics daughter board 2-12 dialed call, flowchart of events 3-10 graphics, Annex-D F-3...
Page 216 label kit F-4 network dedicated 3-4, G-3 switched 3-4, G-3 amber 3-5 green 3-5 network failure, corrective actions 4-13 log, fault 4-5 network interface boards, illustration 3-3 loopback tests definition of 3-2 definitions of 4-33 EIA RS-449 3-7 local channel 4-34, 4-35 switched-56 3-5 local video/audio 4-34 V.25 3-8...
Page 217 pin assignments 8-pin camera control connector B-1 remote diagnostics tests, running 4-4 DA-15 B-16 for EIA RS-449 network interface B-11 replacement label kit F-4 four-wire CSDC interface connector B-8 resolution lapel microphone connector B-6 of document camera 1-14 PC data cable B-7 of PowerCam 100 1-13 switched-56 network B-8 tabletop microphone connector B-6...
Page 218 SPID, definition of G-3 standard components 1-2 V.25 network interface 3-8 stop bits D-1 V.35 network interface 3-6 switched network, definition of 3-4 connecting one E-1 switched-56 network interface 3-5 connecting stereo E-5 switched-56 network standards 3-2 connecting two E-3 switchhook audio call F-4 VCR failure, corrective actions 4-18 synchronous communication, definition of...
Page 219 Y adapter, for PTZ camera B-1 zoom range of document camera 1-14 of PowerCam 100 1-13 Index-7...

PictureTel Concorde 4500 Servicing Manual

Chapter 1 Concorde¥4500 System Overview

Chapter 2 Understanding the Electronics Module

Chapter 3 Network Interfaces

Chapter 4 Troubleshooting

Chapter 5 Ordering and Returning Components

Appendix A Concorde¥4500 Specifications

Appendix B Pin Assignments

Appendix C Electronics Module Connections

Appendix D Control and Data Port Communications

Appendix E Connecting a VCR

Appendix F Frequently Asked Questions

Quick Links

Troubleshooting

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Summary of Contents for PictureTel Concorde 4500