Polycom DOC2237A Hardware Installation Manual
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Polycom DOC2237A Hardware Installation Manual

Polycom DOC2237A Hardware Installation Manual

Polycom video conference bridge hardware & installation guide
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Polycom MGC 50/MGC 100
Hardware & Installation Guide
Version
9.0.4 |
August 2010
|
DOC2237A

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  • Page 1 Polycom MGC 50/MGC 100 Hardware & Installation Guide Version 9.0.4 | August 2010 DOC2237A...
  • Page 2 (e.g., a book or sound recording). Every effort has been made to ensure that the information in this manual is accurate. Polycom, Inc., is not responsible for printing or clerical errors. Information in this document is subject to change...

  • Page 3: Table Of Contents

    Table of Contents Before You Begin ........1-1 MGC Unit Main Features .
  • Page 4 Table of Contents First Entry IP Configuration ....... 2-35 Clocking ..........2-41 System Architecture .
  • Page 5 Fuse/Circuit Breaker (AC Power) ..... . . 4-22 Fans ..........4-22 Alarms Port .
  • Page 6 Table of Contents System Maintenance ....... . 5-1 Controls and Indicators ........5-2 Corrective Maintenance .
  • Page 7 MGC Hardware and Installation Guide Cables For the MPI-8 Network Interface Module ..A-6...
  • Page 8 Table of Contents...

  • Page 9: Before You Begin

    Before You Begin The MGC-50 and the MGC-100 are high performance, high capacity Multipoint Control Units (MCU) which support up to 48 ports for the MGC- 50, and 96 ports for the MGC-100. They utilize a variable port bandwidth ranging from 56 to 1920 Kbps. Figure 1-1: MGC 50 Figure 1-2: MGC 100...
  • Page 10 Chapter 1 - Before You Begin The system meets International Telecommunication Union - Telecommunication Standardization Sector, (ITU-T, formerly CCITT) standards for multipoint multimedia bridging devices, and meets ETSI standards for telecommunication products. The MGC-100 DC also meets the NEBS Compliant Standard (when so ordered) for our clients based in the United States.

  • Page 11: Mgc Unit Main Features

    MGC Unit Main Features The MGC unit offers the following features: • Supports a large number of ports (48 for the MGC-50, 96 for the MGC- 100) running at 128 Kbps • Universal slots, telco grade high availability with hot-swappable modules, redundancy, on-line upgrading and dynamic resource allocation Support for standard network interfaces (ISDN, ATM, T1-CAS, LAN...

  • Page 12: Mgc-50/Mgc-100 Specifications

    Chapter 1 - Before You Begin MGC-50/MGC-100 Specifications Table 1-1 lists the specifications of the MGC-50 and the MGC-100 units. Table 1-1: MGC Specifications Physical Height Width Depth Weight Free space above the MCU rack IP Protocols Audio Video Data H.
  • Page 13 Table 1-1: MGC Specifications Channel aggregation H.221, BONDING, Multi-Rate (H0) Network interfaces ISDN: T1 PRI, E1 PRI, Multirate ISDN, NFAS, Leased lines-T1/E1, Switched 56 T1-CAS T1-CAS lines for Audio Only connections ATM: 25 (FVC.COM), 155 (FVC.COM) IP (H.323 and SIP): Serial: V.35, RS449, RS530/A External...
  • Page 14 Chapter 1 - Before You Begin Table 1-1: MGC Specifications Operating ESD Storage ESD System Communications Integrated scheduler API to 3rd party reservation systems Conference Setup (Scheduled/ Unscheduled) Meet Me Per Dial-out/Dial-in Diagnostics Power up On-line Remote Serviceability / Reliability Hot plug-in modules Front panel removable modules...
  • Page 15 Table 1-1: MGC Specifications AC Input 100-240 VAC, 50/60 Hz Power Consumption MGC-50 AC Maximum Power AC Voltage - consumption 10Amp at 100 VAC, 5 Amp at 240 VAC protected by a 12.5 Amp fuse. Note: Older MCU units may have different power ratings.

  • Page 16: Scope Of Manual

    Chapter 1 - Before You Begin Scope of Manual This manual describes the MGC-50 and the MGC-100 hardware and installation procedure. It is intended for service engineers, system administrators and system operators who need to install, configure and maintain the MGC unit. Detailed information on using the system, including starting and shutting down the system, is provided in the MGC Manager User’s Guide.

  • Page 17: Conventions

    Conventions Before using this manual, it is important for you to understand the terms and conventions used: • The term “Choose” or “Double-click” is used when you need to activate a menu command or a command button in the dialog box. The term “Select”...

  • Page 18: List Of Abbreviations

    Chapter 1 - Before You Begin List of Abbreviations The following is the list of abbreviations used throughout this manual: Table 1-2: Abbreviations HDLC ISDN 1-10 Application Programming Interface Channel Service Unit Dual Port Ram Electro-Static Discharge High-level Data Link Control High Speed Data Internet Protocol Integrated Services Digital Network...

  • Page 19: Installation And Configuration Workflow

    Installation and Configuration Workflow The MGC unit installation and configuration process includes the following main steps: Hardware Installation, Software Installation, Database Configuration, Network Services definition and the MGC unit cards configuration. The Hardware Installation stage is described in this guide. The remaining steps are described in the MGC Administrator’s Guide, as described in following flowchart.
  • Page 20 Chapter 1 - Before You Begin 1-12...

  • Page 21: Hardware Installation

    Hardware Installation This chapter describes the unpacking and connection of both the MGC+50 and the MGC+100, to the ISDN, T1-CAS, H.323, MPI or serial network to the operator workstation (PC) Figure 2-1: Installation and Configuration Workflow - Hardware Installation MGC Hardware and Installation Manual, Chapter 2 MGC Hardware and Installation Manual, Chapter 2...

  • Page 22: Mgc-100 Hardware Installation

    Chapter 2 - Hardware Installation MGC-100 Hardware Installation Unpacking and Positioning the MGC-100 To unpack and position the MGC-100: When you receive your MGC-100, inspect the equipment for damage and verify that the components match the packing slip. If you did not receive a component or if there is damage to the system, notify your service representative immediately.
  • Page 23 Release the clasp locks at the bottom, and lift the MGC-100 top cover. Wood Packing Case Foam Block Foam Block Figure 2-2: Unpacking the MGC-100 Lift the MGC-100 unit and remove the packaging material. Lower the MGC-100 unit, placing it on the surface. If the MGC-100 is a standalone unit, place it on a flat surface.

  • Page 24: Mounting The Mgc-100 On A 23" Rack

    Chapter 2 - Hardware Installation Mounting the MGC-100 on a 23” Rack The MGC-100 can be mounted to a 23” rack using the two mounting plates that are pre-installed on the unit. Make sure that the MCU is turned OFF and it is disconnected from the AC or DC power.
  • Page 25 Unscrew both MCU the side screws and remove both side plates. From the inside of the MGC-100, screw the mounting brackets to both sides of the MCU, securing the screws in the mounted nuts. MGC Hardware and Installation Manual front Remove plate Screw mounting...

  • Page 26: Mounting The Mgc-100 On A 19" Rack

    Chapter 2 - Hardware Installation Place the MCU in a 23” rack and while supporting it, screw the mounting brackets to the rack securing it with bolts and self-locking nuts. When the unit is installed on a rack, the rack must be properly grounded to the central office ground.
  • Page 27 Module placed on the left bottom. Check that all the parts are in the kit. The kit should contain the following items: Table 2-1: 19” Rack Mounting Kit Item # Polycom P/N MEC2063A SCR2005A WAS2003A WAS2004A Make sure that the MCU power is turned OFF and it is disconnected from the AC and DC power.

  • Page 28: Nebs Standard

    Chapter 2 - Hardware Installation Carefully rotate the MGC-100 counterclockwise 90°, making sure the Control Unit is at the bottom left. While supporting the MGC-100, place it on the 19” rack and screw the brackets to the rack, securing it with the screws and nuts supplied with the rack.

  • Page 29: Connecting And Setting Up The Mgc-100

    Connecting and Setting Up the MGC-100 Use the MGC-100 rear panel diagram below for reference. Main Switch and Circuit Breaker AC Inlet Figure 2-5: MGC-100 Rear Panel with External Connectors To connect the MGC-100 to the network and power source and set up the system the following procedures are performed: Connecting the MGC unit to the power source (AC inlet or -48DC power •...

  • Page 30: Mgc-100 Dongle

    Chapter 2 - Hardware Installation MGC-100 Dongle MGC-100 is shipped with a serial dongle installed on COM1 on the MCU rear panel. The dongle is required for normal operation of the MCU. If the dongle is missing, please contact support. Connecting to the power source You can connect to an AC Inlet or to DC power supply according to the power system used in your site.
  • Page 31 To connect to the -48DC power system: Make sure the power switch is OFF. Turn off the DC power distribution unit. Using the three wires 10 AWG cable running from the DC power distribution unit, connect the black wire into the -48IN terminal block and the red wire to the -48V RTN terminal block.

  • Page 32: Connecting The Mgc-100 To The Lan Network

    Chapter 2 - Hardware Installation Turn on the power by pressing on the power switch located on the rear panel of the MGC-100 unit. Connecting the MGC-100 to the LAN Network Connect one end of a network cable to the LAN connector on the rear panel of the MGC-100 and the other end to the network.

  • Page 33: Connecting The Mgc-100 To The Network

    Connecting the MGC-100 to the Network To connect the MGC-100 to the ISDN network or T1-CAS Network The ISDN network is optional. If the MGC-100 has to be connected to the public ISDN network then an external CSU or similar equipment is needed. T1-CAS network is optional.
  • Page 34 Chapter 2 - Hardware Installation To connect the MGC-100 to the ATM network: The MGC-100 can be connected to an ATM network. The type of connection being used differs according to the ATM Network Interface card installed in the MCU. If an ATM-25 network interface card is installed, connect the 8-pin RJ-45 connector of the network cable to the NET RJ-45 jack on the rear panel of the MGC-100.
  • Page 35 To connect the MGC-100 to the IP network: If an IP network Interface card is installed in the MGC-100, connect the 8-pin RJ-45 connector of the LAN network cable to the LAN-323 RJ-45 jack on the rear panel of the MGC-100. Figure 2-9: LAN H.323 network connection When installing a NEBS compliant system, use only shielded LAN cables where the shield is grounded at both ends when connecting to the IO LAN port of the...

  • Page 36: Mpi-4/8 Hardware Installation For The Mgc-100

    Chapter 2 - Hardware Installation MPI-4/8 Hardware Installation for the MGC-100 The MPI-4/8 (Multi Protocol Interface) Network Interface card is inserted into the MGC-100 unit. The MPI box may be mounted on top of the MGC-100 using mounting brackets, or on a separate 19” or 23” rack, as can be seen in Figure 2-8. When installed on a 19”...

  • Page 37: To Install The Mpi-4/8 Network Interface Module

    To install the MPI-4/8 Network Interface Module: Slide the MPI-4/8 Network Interface module into a free slot in the MGC front panel. Push the MPI-4/8 Network Interface module firmly into the Backplane, making sure it is properly seated in its slot. Tighten the screws on the front panel of the MGC-100 that secure the MPI-4/8 Network Interface module.
  • Page 38 Chapter 2 - Hardware Installation Place the mounting bracket on top of the MCU aligning it against the screw openings as shown below and tighten the screws. Mount the bracket on the other side of the MCU (repeat step 4). Place the MPI box with its four 160-pin connectors facing the MCU front panel between the two mounting brackets.
  • Page 39 If the MCU is standalone, reassemble the side panels. If the MCU is rack mounted, mount the unit on the rack and connect all the external cables. PORTS PORTS CONT NET-8 NET-8 NET-8 NET-E1 DATA DATA VIDEO VIDEO VIDEO Critical Stby Stby Stby...
  • Page 40 Chapter 2 - Hardware Installation 10. Connect the serial cable running from the DCE to the appropriate 37-pin connector on the rear panel of the MPI Box. If dialing is used, connect the appropriate cable from the DCE to the 25-pin connector on the rear panel of the MPI Box.

  • Page 41: Hardware Installation

    When you receive your MGC-50, inspect the equipment for damage and verify that the components match the packing slip. If you did not receive a component or if there is damage to the system, notify Polycom immediately. Wood Packing Case...
  • Page 42 Chapter 2 - Hardware Installation Release the clasp locks at the bottom, and lift the MGC-50 top cover. Wood Packing Case Foam Blocks Foam Blocks Figure 2-12: Unpacking the MGC-50 Lift the MGC-50 unit and remove the package base. Lower the MGC-50 unit, placing it on the surface. If you are rack mounting the MGC-50, allow a minimum clearance of 3 inches above the unit.

  • Page 43: Mounting The Mgc-50 On A Rack

    Mounting the MGC-50 on a Rack The MGC-50 can be mounted in a 19” rack using two mounting plates (Kit 2012A). The side plates are usually mounted when shipped, but if not, follow the directions below to install the mounted plates on the MGC-50 and then mount the MGC-50 on the 19”...
  • Page 44 Chapter 2 - Hardware Installation Once the Main Control Module, the power supply module and the boards are removed, unscrew the side screws from inside the MGC-50, and then remove the plate from both MGC-50 sides. From the inside of the MGC-50, screw the mounting bracket to the side of the MGC-50, securing the screws in the mounted nuts.
  • Page 45 To remove the plate from the right side of the MGC unit remove the appropriate number of functional modules to allow access to the screws. From the inside of the MGC-50, screw the mounting bracket to the side of the MGC-50, securing the screws with the mounted nuts. 10.

  • Page 46: Connecting And Setting Up The Mgc-50

    Chapter 2 - Hardware Installation Connecting and Setting Up the MGC-50 Use the MGC-50 rear panel diagram below for reference. Fuse Main Switch Figure 2-13: MGC-50 Rear Panel with External Connectors To connect the MGC-50 to the network and power source and set up the system the following procedures are performed: Connecting the MGC unit to the power source (AC inlet) •...

  • Page 47: Connecting To The Power Source

    Connecting to the Power Source To connect to the AC Inlet: Make sure that the power switch located on the rear panel of the MGC unit is off. Insert the power cable into the power connector on the rear panel of the MGC-50 unit.

  • Page 48: Connecting The Mgc-50 To The Lan Network

    Chapter 2 - Hardware Installation Connecting the MGC-50 to the LAN Network Connect one end of a network cable to the LAN connector on the rear panel of the MGC and the other end to the network. Connecting the MGC-50 to the Operator Workstation (PC) Directly via RS-232 (Optional) Connect one end of an RS-232 cable to the COM 2 connector on the front panel of the MGC Control Unit and the other end to the serial port of the...
  • Page 49 • connector for solid conductor wires with a diameter in the range 0.4 to 0.6 mm. Use Polycom P/N CBL0602A or similar adapter. Connect one side of the adapter to the NET RJ-45 jack on the rear panel of the MGC. Then connect the leased line wires to the other side of the adapter.

  • Page 50: Connecting The Mgc-50 To The Atm Network

    Chapter 2 - Hardware Installation Connecting the MGC-50 to the ATM Network The MGC-50 can be connected to an ATM network. The type of connection used differs according to the ATM Network Interface card installed in the MCU. If an ATM-25 network interface card is installed, connect the 8-pin RJ-45 connector of the network cable to the NET RJ-45 jack on the rear panel of the MGC.

  • Page 51: Connecting The Mgc-50 To The Ip Network

    Connecting the MGC-50 to the IP Network If an IP network Interface card is installed in the MGC, connect the 8-pin RJ-45 connector of the LAN network cable to the LAN-323 RJ-45 jack on the rear panel of the MGC. Figure 2-17: LAN IP network connection The IP network properties must be defined in the IP Network Service.

  • Page 52: Hardware Installation For The Mgc-50

    Chapter 2 - Hardware Installation MPI-8 Hardware Installation for the MGC-50 The MPI-8 Network Interface card is inserted into the MGC-50. The MPI box is mounted on a 19” rack together with the MGC-50, as can be seen in Figure 2-15. The MPI box is mounted directly on the rack, above the MGC-50, leaving at least 6”...
  • Page 53 To install the MPI-8 Network Interface Module: Slide the MPI-8 Network Interface module into a free slot in the MCU front panel. Push the MPI-8 Network Interface module firmly into the Backplane, making sure it is properly seated in its slot. Tighten the screws on the front panel of the MGC-50 that secure the MPI-8 Network Interface module.
  • Page 54 Chapter 2 - Hardware Installation Using a second cable, connect the 160-pin connector to Port B of the MPI-8 Network Interface front panel. Connect the other end of the cable to B (Ports 5-8) 160-pin connector of the MPI Box. By doing this procedure we have utilized the MPI Box as a MPI-8.

  • Page 55: First Entry Ip Configuration

    First Entry IP Configuration This following section describes the first entry IP Configuration for pSOSystem and XPEK Operating Systems. IP Configuration Change on XPEK and pSOS OS Connect a Hub or cross-over LAN cable between the laptop’s LAN connection and the LAN connection of the Control Unit. On the laptop, click Control Panel ->Network Connection->Local Area Connection.
  • Page 56 Chapter 2 - Hardware Installation In the MCUs list, double-click the MCU icon to connect to it. 2-36 The Add MCU dialog box opens. In the Name box, enter the name of the MCU. Specify a name that clearly identifies the MCU. In the IP Address box, enter the factory-setting IP Address:129.254.4.8.
  • Page 57 10. Modify the IP address of the MCU unit as allocated by the network administrator. This is the IP address with which the MCU is identified on the LAN site: Right-click the MCU icon, and then click IP Configuration. The IP Configuration dialog box opens. The following parameters should be modified to match the actual network: MGC Hardware and Installation Manual...
  • Page 58 Chapter 2 - Hardware Installation 11. Click OK. 12. Exit the MGC Manager and switch OFF the MCU. 13. Disconnect the MCU from the cross-over cable. 14. Connect the MCU to your site’s network. 15. Switch ON the MCU. 2-38 Table 2-2: IP Configuration Options Option Description...

  • Page 59: Using A Dos Diskette With The Updated Lan.cfg File

    The MCU Properties dialog box opens. Enter the IP address of the MCU as you have defined in the IP Configuration. Click OK. Using a DOS Diskette with the Updated LAN.CFG File Using Windows Notepad, create a new text file with the following text: IP_ADDRESS = aaa.bbb.ccc.ddd NETWORK_MASK = aaa.bbb.ccc.ddd DEFAULT_GATEWAY = aaa.bbb.ccc.ddd,...
  • Page 60 Chapter 2 - Hardware Installation Save the information, creating a text file named LAN.CFG. Copy the file to an empty DOS diskette. Turn on the MCU and wait for the Power LED to blink. Insert the DOS diskette to the MCU diskette drive. The MCU reads information from the diskette several times.

  • Page 61: Clocking

    Clocking To be able to work with the network connected to the MCU you need to synchronize the system clock with the network clock. This is done in two steps: Selecting the network type according to which the system clock will •...
  • Page 62 Chapter 2 - Hardware Installation 2-42...

  • Page 63: System Architecture

    System Architecture The MGC unit is designed to provide maximum reliability, minimum interruptions, and effortless maintenance. Removable active components are accessed via the front panel to provide quick and easy serviceability. Redundant power supplies are easily accessed via the front panel, ensuring a fail safe operation (the MGC-50 is not redundant, therefore not hot- swappable).
  • Page 64 Chapter 3 - System Architecture The MGC Unit is made up of: • Main Control Module, located at the top left of the unit when viewed from the front • Functional Modules, located to the right of the Main Control Module when the unit is viewed from the front •...
  • Page 65 MGC Hardware and Installation Manual Figure 3-3 describes the functional block diagram of the complete MGC-50. Backplane Rear MUSIC I/O H.323 I/O NET I/O Main Control Module Front Power Supply Module Figure 3-3: MGC-50 components...
  • Page 66 Chapter 3 - System Architecture Figure 3-4 shows the physical layout of the MGC-100 and how it interfaces with the outside world. Network Functional Modules H323 Network ISDN Network Figure 3-4: MGC unit functional block diagram Operator Workstation RS232 Ethernet Hard Main Disk...
  • Page 67 Figure 3-5 shows the physical layout of the MGC-100 and how it interfaces with the outside world. H323 ISDN Network Network Network CSU/PABX MGC-100 Card Card Card Main Control Module Serial equipment Functional Modules ISDN Network Interface Power Supply Unit Figure 3-5: MGC-100 functional block diagram MGC Hardware and Installation Manual Workstations...
  • Page 68 Chapter 3 - System Architecture Figure 3-6 shows the physical layout of the MGC-50 and how it interfaces with the outside world. H323 ISDN Network Network CSU/PABX MGC-100 Card Card Serial equipment Figure 3-6: MGC-50 functional block diagram Network Workstations RS232 Card Floppy Disk...

  • Page 69: Information Flow

    Information Flow Figure 3-7 shows the flow of information within the system. The MUX Module is not used with the H.323. Figure 3-7: Signal flow process Information enters the MGC units from the telecommunications network via a PBX or CSU, and into the Network Interface Module. The information is then transferred to the MUX Module via the Internet.
  • Page 70 Chapter 3 - System Architecture The MUX module divides the incoming information into audio, video and data components, and then forwards the information to the appropriate functional module. The information arriving at the MUX ports is multiplexed into Nx56/64 Kbps channels. These channels can be hyperchannels or aggregated channels, depending on the capabilities of the network and the receiving terminals.

  • Page 71: Mgc Manager Interface

    MGC Manager Interface As shown in Figure 3-4, “MGC unit functional block diagram” on page 3-4, the Main Control Unit communicates with the MGC Manager through the LAN interface or the RS-232 interface. Power Supply Flow For the MGC-100, the AC power inlet is connected by a switch through a 15 Amp.
  • Page 72 Chapter 3 - System Architecture 3-10...

  • Page 73: Hardware Description

    Hardware Description This chapter describes the various components that make up the MGC unit. The following components are described: • Backplane • Main Control Module Power Supply Module • Fans • Functional Modules • — ISDN Net-T1/Net-E1 — ISDN/T1-CAS Net-2/4/8 —...

  • Page 74: Mgc-100 Components Location

    Chapter 4 - Hardware Description MGC-100 Components Location Figure 4-1 shows the front panel of the MGC-100. The front panel provides access to the Main Control Module, the Functional Modules, and the Power Supply Modules. Status LEDs on the Main Control Module, Functional Modules, and Power Supply Modules indicate the status of the system.
  • Page 75 Figure 4-2 shows the rear panel of the MGC-100. The rear panel provides access to the network I/O card connectors. I/O cards are inserted via the rear panel. In addition, the rear panel houses the main power switch, AC inlet, fans, the circuit breaker, additional communications ports and alarm ports.
  • Page 76 Chapter 4 - Hardware Description Figure 4-3 shows the front panel of the MGC-100 NEBS Standard. The front panel, as in the MGC-100, provides access to the Main Control Module, the Functional Modules, and the Power Supply Modules. Status LEDs on the Main Control Module, Functional Modules, and Power Supply Modules indicate the status of the system.
  • Page 77 MGC Hardware and Installation Manual Figure 4-4 shows the rear panel of the MGC-100 NEBS Standard. The rear panel, as in the standard MGC-100, provides access to the network I/O card connectors and fans. I/O cards are inserted via the rear panel.
  • Page 78 Chapter 4 - Hardware Description Figure 4-5 shows the top view of the inside of the MGC-100. The Main Control Module, Functional Modules, and I/O cards are all connected to the Backplane. The Power Supply Modules, located underneath the Main Control Module and the Functional Modules, are connected to the Powerplane.

  • Page 79: Mgc-50 Components Location

    Modules, and Power Supply Module indicate the status of the system. Floppy Disk Drive Figure 4-6: MGC-50 front panel Functional Modules Main Control Module LEDs CONT PRI-8 MG-323 AUDIO AUDIO Critical POLYCOM Stby Stby Stby Major Fail Fail Fail Minor MGC-50 Active Active Active Line 1...
  • Page 80 Chapter 4 - Hardware Description Figure 4-7 shows the rear panel of the MGC-50. I/O cards are inserted via the rear panel. The rear panel also provides access to the fans, power supply module, network connections, additional communications ports, the main power switch, AC inlet, and fuse.
  • Page 81 MGC Hardware and Installation Manual Figure 4-8 shows the top view of the inside of the MGC-50. The Main Control Module, Functional Modules, and I/O cards are all connected to the Backplane. The Power Supply Module is located underneath the Main Control Module and the Functional Modules, and is connected by wire leading to the backplane.

  • Page 82: Main Control Module

    Chapter 4 - Hardware Description Main Control Module The Main Control Module performs the functions of conference setup, conference teardown, and resource allocation in both the MGC-100 and the MGC-50. The Main Control Module has an Intel-based Pentium processor, a hard disk drive and 256 MB of memory.
  • Page 83 The MGC unit can contain different types of IP network cards. The Main Control Module operating system includes drivers for all of the cards. The Main Control Module’s operating system automatically detects the card type. If the card is correctly identified, the system starts up correctly. If the system fails to detect any card type, it will start up according to the card type definition in the system.cfg file.

  • Page 84: Mgc-50/100 Control Unit With Removable Hard Drive

    Sharing Hard Drives between two different MCU’s is not possible due to the different cards, network services and reservations. However, if you need to move a drive to another MCU contact Polycom support. The following sections describe the steps required to install the removable hard drive.

  • Page 85: Control Unit Installation

    Use the plastic ejectors to pull the Control Unit out of its slot. Slide the Main Control Unit out through the front panel and remove the Control Unit from the MCU. Control Unit Installation Installing the Control Unit on the MCU: Ensure that the MCU is OFF, and the power cord is disconnected.

  • Page 86: Ip Configuration Change

    Chapter 4 - Hardware Description Attach the rear panel back on the chassis. Connect the power cord to the power source and switch ON the main power switch on the rear panel. Open the MGC Manager application. Configure the MCU’s IP Address as specified in the First Entry IP Configuration section below.

  • Page 87: Inserting The Hard Drive

    Inserting the Hard Drive Make sure the MCU is OFF and insert the Hard Drive into its slot. Check that the Hard Drive is firmly locked into place. Turn the key counter clockwise to lock the Hard Drive. Turn ON the MCU. The LED activates on the Hard Drive’s panel after MCU startup.

  • Page 88: Hard Drive Limitations

    Chapter 4 - Hardware Description You can now remove the Hard Drive by sliding it out from its housing. Hard Drive Limitations The XPEK or pSOS change function requires changing pre-configured • Hard Drives IP Change can only be implemented as described in the procedure: “IP •...

  • Page 89: Backplane

    MGC Hardware and Installation Manual Backplane The Backplane is based on the “universal slot” concept, where any card can be inserted in any slot. Therefore, different configurations are formed based on the users’ port capacity and functionality requirements. The Backplane supports hot swapping of Function Modules and I/O cards.

  • Page 90: Control Bus

    Chapter 4 - Hardware Description In the MGC-50, the front of the Backplane contains eight slots for Functional Modules and an additional slot (Slot A) for the Main Control Module. The back of the Backplane also contains eight slots for I/O cards and one “dummy”...

  • Page 91: Information Highway

    Information Highway The Information Highway is a high capacity TDM-type bus. It is used by both the MGC-100 and the MGC-50. The Information Highway transfers information from the Network Interface Modules to the MUX Modules and from the MUX Modules to the Audio, Video and Data Modules except during IP calls.

  • Page 92: Power Supply Module

    Chapter 4 - Hardware Description Power Supply Module Both MGC units (MGC-100 and MGC-50) operate at 100-240 volts AC 50/60 Hz. Power Module in the MGC-100 Up to three redundant power supplies (N+1) provide backup for the system to ensure multipoint service is not interrupted as a result of any single power supply failure.

  • Page 93: Power Module In The Mgc-50

    Power Supply Cord The MGC-100 and the MGC-50 may only use power supply cords supplied by Polycom Inc.or a equivalent UL approved cable, rated at a current of up to 15 Amp., depending on country standards, for AC power supply. The following specifications are for both the MGC-100 and MGC-50.

  • Page 94: Fuse/Circuit Breaker (Ac Power)

    Chapter 4 - Hardware Description Fuse/Circuit Breaker (AC Power) Currently, MGC-100 Control Units come equipped with a circuit breaker. Previous models on the MGC-100 use one UL approved circuit breaker. The specifications of the fuse are shown in Table 4-3. The MGC-50 uses one UL approved fuse, Schurter Type no.

  • Page 95: Functional Modules

    Functional Modules The Functional Modules (cards) perform the various audio, video, and data processing functions for the MGC unit. Both the MGC-100 and the MGC-50 use the same functional modules. The MGC-100 unit houses up to sixteen Functional Modules, which can occupy slots 1 through 16.
  • Page 96 Chapter 4 - Hardware Description Table 4-4: MGC Functional Modules Description Functional Module MG323 IP24 IP48 IP+12 IP+24 IP+48 4-24 Function Audio, video and data communications across IP based (LAN) networks, including the Internet. Enables Audio, video and data communications across IP based (LAN) networks, including the Internet.
  • Page 97 Table 4-4: MGC Functional Modules Description Functional Module Function MPI-4 Uses dialing protocols to communicate to endpoints using “Data Terminal Equipment” (DTE), or Data Communications Equipment (DCE). MPI-8 Uses dialing protocols to communicate to endpoints using “Data Terminal Equipment” (DTE), or Data Communications Equipment (DCE).
  • Page 98 Chapter 4 - Hardware Description Table 4-4: MGC Functional Modules Description Functional Module MUX Module MUX+10 MUX+20 MUX+40 Data Module The different types of Functional Modules are used to produce a variety of configurations. In the MGC-50 up to eight individual Functional Modules can be used to build the desired configuration.
  • Page 99 Figure 4-13: General module architecture Table 4-5: Common functional module components Component Description The Card Manager processor. Card Manager HDLC Interface Provides the interface for the Control bus. Watch Dog Represents the Watch Dog, power control, and reset switch. Represents the RAM for processor general use and Memory the flash for the card CPU’s software and module specific information such as serial number.

  • Page 100: Net-E1/Net-T1 Isdn Network Interface Module

    Chapter 4 - Hardware Description Net-E1/Net-T1 ISDN Network Interface Module The Net-E1/Net-T1 ISDN Network Interface module provides the interface between the MGC unit and the ISDN network. It supports up to two PRI connections of the same type (E1, T1). One ISDN Network Interface module in each MGC unit serves as the “master clock,”...
  • Page 101 MGC Hardware and Installation Manual TDM Interface ATM Hardware MVIP ATM-MVIP Card ISA Interface Front Panel Watch Card Memory LEDs Manager HDLC Interface Figure 4-14: Net-E1/Net-T1 ISDN Network Interface Module 4-29...

  • Page 102: The Net-E1/Net-T1 Isdn Network Interface Data

    Chapter 4 - Hardware Description The Net-E1/Net-T1 ISDN Network Interface Data Stream Figure 4-14 shows a block diagram of the network interface of the MGC unit. Connector MVIPInterface Figure 4-15: Net-E1/Net-T1 ISDN Network Interface block diagram The Net-E1/Net-T1 ISDN Network Interface Module is connected to the telephone network via the Net I/O card, which is connected to the PABX and then the CSU.

  • Page 103: Net-2/Net-4/Net-8/Net-8L Isdn And Net-2/Net-4/Net-8 T1-Cas Network Interface Module

    Net-2/Net-4/Net-8/Net-8L ISDN and Net-2/Net-4/Net-8 T1-CAS Network Interface Module The Net-2/Net-4/Net-8/Net-8L ISDN Network Interface module provides the interface between the MGC unit and the ISDN network. The Net-2/Net-4/ Net-8 T1-CAS Network Interface module provides the interface between the MGC unit and T1-CAS lines. The same type of card can be used to connect ISDN lines or T1-CAS lines.
  • Page 104 Chapter 4 - Hardware Description Front Panel LEDs Watch Figure 4-16: Net-2/Net-4/Net-8 ISDN/T1-CAS and Net-8L ISDN Network Interface Module 4-32 TDM Interface TDM I/F FRAMER Card Manager HDLC Interface PHYI/F Processor...

  • Page 105: The Net-2/Net-4/Net-8 Isdn/T1-Cas Network Interface

    The Net-2/Net-4/Net-8 ISDN/T1-CAS Network Interface Data Stream Figure 4-16 shows a block diagram of the Net-2/Net-4/Net-8/Net-8L network interface of the MGC unit. RJ45 Span A RJ45 Span B Backplane IO-2 IO-4 Figure 4-17: Net-2/Net-4/Net-8 ISDN/T1-CAS and Net-8L ISDN Network Interface Block Diagram The ISDN Network Interface Module is connected to the telephone network via the IO card (IO-2, IO-4 or IO-8), which is connected to the PABX and...

  • Page 106: Atm Network Interface Module

    Chapter 4 - Hardware Description ATM Network Interface Module The ATM Network Interface Module provides the interface between the MGC unit and ATM network. The ATM card may be shipped in two configurations: ATM-25 Network Interface Module that supports one 25MB connection using RJ-45 connector and ATM-155 Network Interface Module that supports one 155MB connection using a fiber optics connector.

  • Page 107: Ip And Ip+ Network Interface Module

    MGC Hardware and Installation Manual IP and IP+ Network Interface Module The IP and IP+ Network Interface Modules support participant connections using H.323 communication standards. The IP+ Network Interface Module also supports SIP participants. H.323 is a standard for audio, video and data communications across IP based (LAN) networks, including the Internet.

  • Page 108: Module Port Capacity

    Chapter 4 - Hardware Description The IP+ cards are available in IP+12, IP+24 and IP+48 port sub-assemblies. The following table lists the type of IP card, its version number, its compatibility with SIP, VoIP and Encrypted conferences and its capacity. Table 4-1: IP Card Types IP Card Name...
  • Page 109 Table 4-2: IP Participant Types and Line Rate Capacities Participant Card Type Type MG323/IP12 Standard Video participant T.120 participant SWCP participant IP24 Standard Video participant T.120 participant SWCP participant IP48 Standard Video participant T.120 participant SWCP participant MGC Hardware and Installation Manual Line Rate Kbps Kbps...

  • Page 110: Ip And Ip+ Network Interface Module Architecture

    Chapter 4 - Hardware Description IP and IP+ Network Interface Module Architecture The IP and IP+ Network Interface Modules have the same general card structure as other MGC modules: Card-Manager, TDM interface, and the functional units. Figure 4-18 shows the architecture for the IP and IP+ Network Interface Modules.

  • Page 111: Ip+ Port Capacities

    IP+ Port Capacities The number of participants in a conference is limited by the Line Rates and conference type. Table 4 describes the port capacities of the cards using different line rates. Table 4-1: IP+ Port Capacities Line IP+12 Rate (Kbps) Non- Encrypted...

  • Page 112: The Mpi-8 Network Interface Module

    Chapter 4 - Hardware Description The MPI-8 Network Interface Module MPI is an acronym for the Multi Protocol Interface card. The MPI-8 is a serial communications interface card that uses certain protocols to communicate to endpoints, “Data Terminal Equipment” (DTE), or “Data Communications Equipment”...
  • Page 113 Each 160-pin connector can be connected to one 160-pin connector located on the front panel of the MPI box. 160-pin connector Converts data from four ports PORTS PORTS 160-pin connector Converts data from four ports Figure 4-21: MPI box front panel Each of the 160-pin connectors on the MPI box interfaces to four serial ports found on the back of the MPI box.

  • Page 114: Mpi-8 Network Interface Data Stream

    Chapter 4 - Hardware Description MPI-8 Network Interface Data Stream When the MCU is set as a DTE The ISDN data stream flows from the ISDN telecommunication network through the DCE to the serial port (37-pin connector) on the MPI box. The data is then directed from the 37-PIN connector to the 160-PIN connector, which gathers data from four different ports, and channels the data stream to the 160-pin connector located on the MPI-8 front panel.
  • Page 115 When the MCU is set as a DCE The serial data stream flows from the endpoint (DTE) through the serial connector entering the MPI box by way of the 37-pin connector. The data is then directed from the 37-pin connector to the 160-pin connector connected to the MCU (DCE).

  • Page 116: Mpi Network Interface Module Architecture

    Chapter 4 - Hardware Description MPI Network Interface Module Architecture Figure 4-25, “MPI-8 Network Interface module architecture” shows the architecture for the MPI-8 Network Interface Module. Front Panel LEDs Figure 4-25: MPI-8 Network Interface module architecture MUX Module The MUX Module multiplexes and demultiplexes the audio, video, data, and control information.
  • Page 117 The MUX Module receives information in one of the following standard formats: • Hyper-channel (or multi-rate ISDN) • Aggregated channel using the BONDING Mode 1 standard from 2 channels of 56/64 Kbps to 30 channels of 56/64 Kbps • Aggregated channel using the ITU-T H.221 standard for channels with data rates of up to 6x56/64 Kbps The MUX Module supports up to 16 MUX ports.

  • Page 118: Mux Module Architecture

    Chapter 4 - Hardware Description MUX Module Architecture Figure 4-25 shows the card architecture of the MUX Module. MUX Hardware LEDs Front Panel LEDs Figure 4-26: MUX Module 4-46 TDM Interface FPGA SRAM FLASH Watch Manager HDLC Interface Processor Card Memory...

  • Page 119: Mux+ Module

    MUX+ Module The MUX+ card performs multiplexing and demultiplexing of audio, video, data and control information. The MUX+ card has the same general card architecture as the MUX card and it includes the same number of processors. The MUX+ card capabilities include: Higher capacity •...

  • Page 120: Mux+ Card Properties

    Chapter 4 - Hardware Description The MUX+ card can be installed together with a MUX card in the same MCU. A conference can run on multiple MUX+ cards, and on both MUX and MUX+ cards simultaneously (with non-encrypted participants). The MUX+ handles a variety of Line Rates, aggregation calls (1B to 6B) and Bonding calls (128 Kbps to E1).

  • Page 121: Ivr/Greet & Guide Welcome Slide

    MGC Hardware and Installation Manual IVR/Greet & Guide Welcome Slide Up to four video slides can be stored on the MUX+ card, in the same way that they are stored on the MUX card. In a mixed system with MUX and MUX+ cards, the Welcome slide is downloaded to all MUX/MUX+ cards.
  • Page 122 Chapter 4 - Hardware Description The following table details the number of ports available with the MUX+ cards. Table 4-2: MUX+ Cards Port Capacity Card type MUX+10 MUX+20 MUX+40 4-50 Number of non- Participant Line encrypted ports Rate capacity Number of encrypted ports capacity...

  • Page 123: Mux+ Participant Move Options

    Table 4-2: MUX+ Cards Port Capacity (Continued) Participant Line Card type Rate MUX+ Participant Move Options The administrator has the option to define move behavior of encrypted participants by setting the system.cfg flag: ALLOW_ENCRYPT_IN _PARTY_LEVEL =YES/NO. When set to YES, participants can move: From an encrypted conference to a non-encrypted conference or another •...

  • Page 124: Mux+ Resource Report

    Chapter 4 - Hardware Description MUX+ Resource Report MGC-50/100 Resource Report The Resources Report, displays the total number of MUX+ port resources available according to the card type, line rate and encryption. In the example shown here, the system lists the total number of ports available with the MUX+20 card for both non-encrypted and encrypted participants, based on their connection line rates.

  • Page 125: Audio Module (Standard)

    Audio Module (Standard) The Audio Module performs audio compression, decompression, and bridging. The Audio Module also performs transcoding between various audio algorithms. The Audio Module supports the following algorithms: • ITU-T G.711 48, 56, and 64 Kbps ITU-T G.722 48, 56, and 64 Kbps •...
  • Page 126 Chapter 4 - Hardware Description The following selections can be enabled with the Audio bridge: 1/30, 4/16, 6/12. • The total number of conferences that can be run by the MCU is: Number of Audio modules x 4 number of conferences selected for the Audio Bridge for each card.

  • Page 127: Audio Module Architecture

    Audio Module Architecture Figure 4-26 shows the architecture for the Audio Module. Audio Audio Hardware Audio Codec Front Panel Watch LEDs HDLC Interface Figure 4-29: Audio Module MGC Hardware and Installation Manual TDM Interface Message Audio Card Bridge x 12 x 12 Card Manager...

  • Page 128: Audio+ Module

    Chapter 4 - Hardware Description Audio+ Module The Audio+ Module performs audio compression, decompression, and bridging. The Audio+ Module also performs transcoding between various audio algorithms. The Audio+ Module supports the following algorithms: • ITU-T G.711 48, 56, and 64 Kbps ITU-T G.722 48, 56, and 64 Kbps •...

  • Page 129: Audio+ Module Architecture

    Audio+ Module Architecture Audio+ represents a new family of audio cards. Audio+ has the same general card architecture as the audio card, but with a different number of processors. This has an impact on the number of ports supported by each card. TDM Interface Audio Audio...
  • Page 130 Chapter 4 - Hardware Description The following table details the card capacities according to the Audio algorithm used in the conference when the MCU is configured to Medium Band. Table 4-3: Audio+ card capacity per Audio algorithm - Medium Band setting G.711 G.722 Card Type...

  • Page 131: Video Module (Standard)

    Video Module (Standard) The Video Module performs video processing and Transcoding. The module supports the ITU-T H.261 and H.263 standards (“Video Codec for Audiovisual Services at Px64 Kbps”). The Video Module supports multiple sites. When using the Continuous Presence mode of operation, the Video Module combines multiple video sources to build a video layout image.

  • Page 132: Video+ Module

    Chapter 4 - Hardware Description The maximum transmission capability of E1 lines (up to 1920 Kbps) can be used in Transcoding or Continuous Presence conferences. To enable the high line rate transmission, a newer video card version (version 1.43 and up) must be installed.

  • Page 133: Video+ Module Architecture

    Quad Mode Continuous Presence - Additional Continuous Presence • layouts suitable for large conferences, i.e. 4x4. H.263 video protocol at 30 Frames Per Second • Improved Video Quality • Improved Continuous Presence image quality at high bit rates • (1.52 Mbps) No fragmentation - Conferences can be run across Video+ cards •...

  • Page 134: Data Module

    Chapter 4 - Hardware Description Data Module The Data Module performs conference data and control routing for up to 12 participants. The system allows for 12 conferences of one participant each, or one conference of 12 participants or any combination in between. In T.120 conferences, the data module does the Transcoding.

  • Page 135: Input/Output Cards

    Input/Output Cards Input/Output (I/O) Cards connect the Functional Modules to external systems and networks. The I/O Cards are housed behind the Backplane, opposite the Functional Modules. The I/O Cards, which are small and simple, are installed via the rear panel of the MGC.
  • Page 136 Chapter 4 - Hardware Description The IO-4 card connects four PRI/Leased connections from the MGC rear panel to a Net-4 ISDN/T1-CAS Network Interface Module. Figure 4-35: ISDN /T1-CAS Network connection for four spans The IO-8 card connects eight PRI/Leased connections from the MGC •...
  • Page 137 • The IO-25 Card connects one ATM connection from the MGC rear panel to an ATM-25 Network Interface Module. Figure 4-37: One 25MB ATM Network connection The IO-155 Card connects one ATM connection from the • MGC rear panel to an ATM-155 Network Interface Module. Figure 4-38: One 155 MB fiber optics ATM Network connection MGC Hardware and Installation Manual 4-65...
  • Page 138 Chapter 4 - Hardware Description • The LAN-IO Card connects one H.323 connection from the MGC rear panel to an H.323 Network Interface Module. Figure 4-39: One H.323 Network connection • The Music-IO Card enables importing audio music from an external source such as a CD player, tape, radio, etc.

  • Page 139: Greet And Guide Hardware Kit

    Greet and Guide Hardware Kit When an Audio+ card is active on the MCU, you are not required to install the Greet and Guide Hardware kit. In the Audio+ card this is replaced by the IVR functionality (a software module). If you are upgrading the MCU to the Greet and Guide mode, you need to install the Greet and Guide hardware kit.

  • Page 140: Installing The Audio Message Daughter Card On The Standard Audio Module

    Chapter 4 - Hardware Description Installing the Audio Message Daughter Card on the standard Audio Module Unscrew the screws on the front panel of the MGC unit that secure the Functional Module. Unlatch the top and bottom latches by pressing up and away the top latch and down and away the bottom latch.

  • Page 141: Attaching The Music I/O Card To The Audio Module

    Audio Card Female Connector Slide in the Audio module. Push the Audio module firmly into the backplane, making sure it is properly seated in its slot. Tighten the screws on the front panel of the MGC unit to secure the Audio module.

  • Page 142: Enabling The Audio Message Daughter Card And Music I/O Card In The Mcu Software

    Chapter 4 - Hardware Description Tighten the screws on the rear panel of the MGC unit to secure the Music I/O card. Enabling the Audio Message Daughter Card and Music I/O Card in the MCU Software Once the Audio Message daughter card and the Music I/O card are installed, the system automatically identifies them.
  • Page 143 MGC Hardware and Installation Manual Select Edit "system.cfg" from the MCU Utils sub-menu. The SysConfig dialog box opens. 4-71...
  • Page 144 Chapter 4 - Hardware Description Double-click on the GREET_AND_GUIDE line in the Section box. The Greet and Guide hardware items appear in the Item = Value box. These values are set according to the Hardware installed in the system. 4-72...

  • Page 145: System Maintenance

    System Maintenance The MGC is designed with ease of maintenance in mind. Most components are hot swappable and are accessible directly via the front panel or the rear panel. Each module includes LED indicators, which reflect the state of the module. The LEDs are located on the front panel of the MGC.

  • Page 146: Controls And Indicators

    Chapter 5 - System Maintenance Controls and Indicators MGC Unit Front Panel The front panel of the MGC unit contains a number of controls, components, and indicators for using the MGC system. Figure 5-1 and Figure 5-2 show the front panel of the MGC-50 and MGC-100 and all their elements. Main Control Module...

  • Page 147: Led Indicators

    Main Control Module CONT PRI-8 Critical POLYCOM Major Minor MGC-50 Line 1 Line 2 Line 3 Line 4 Power Line 5 Line 6 Line 7 Line 8 Floppy Disk Drive COM Port Figure 5-2: MGC-50 front panel LED Indicators The following LEDs appear on the front panel: 8 LEDs on the Main Control Module •...
  • Page 148 Chapter 5 - System Maintenance • 7 LEDs on Net-E1/Net-T1 ISDN Network Interface Module, Net-4 ISDN Network Interface Module, ATM Network Interface Module and H.323 Network Interface Module • 5 LEDs on NET-2 ISDN Network Interface Module • 11 LEDs on NET-8 ISDN Network Interface Module The system uses these LEDs to indicate operating states.
  • Page 149 Table 5-1: Front Panel LEDs Module Name Functional STBY Modules FAIL ACTIVE Net-E1/Net-T1 LINE A ISDN, ATM and LINE A H.323 Network LINE B Interface Module LINE B (additional LEDs) Net-2 Network LINE 1/ Interface Module LINE 2 (additional LEDs) Net-4 Network LINE 1/ Interface Module...
  • Page 150 Chapter 5 - System Maintenance The three Functional Module LEDs function as a group. Each state of the Functional Module and its associated LED array is described in Table 5-2. The (IDLE, ACTIVE, FAILURE, and PARTIAL FAILURE) states are the operational modes of the Functional Module.

  • Page 151: Mgc Unit Rear Panel

    MGC Unit Rear Panel The rear panel of the MGC-100 and MGC-50 contains a number of controls for using the MGC unit. Figure 5-3 AND Figure 5-4 show the back panel and labels all elements of the MGC-50/100. Main Switch and Circuit Breaker AC Inlet Figure 5-3: MGC-100 rear panel controls...
  • Page 152 Chapter 5 - System Maintenance Fuse Main Switch Figure 5-4: MGC-50 rear panel controls The main power switch is used during installation, and replacement of fans, main control module and power supply since the functional modules are hot swappable. The switch includes an AC fuse. Slot A IO Card COM 1...

  • Page 153: Corrective Maintenance

    Corrective Maintenance Corrective maintenance refers to changing or replacing an element of the system that is faulty. The MGC has several components in which problems may occur: • Main Control Module Functional Modules: • Network Interface Modules (ISDN/T1-CAS, ATM, IP and MPI and/or •...

  • Page 154: Replacing A Functional Module

    Chapter 5 - System Maintenance Replacing a Functional Module The following procedure is applicable for both the MGC-100 and the MGC- 50. All Functional Modules are hot-swappable and can be replaced with the system running. Use the following procedure to replace a faulty Functional Module: Unscrew the screws on the front panel of the MGC that secure the Functional Module.

  • Page 155: Replacing The Fuse

    Referring to the labels, reconnect the external connections to the I/O card. Replacing the Fuse Use the following procedure for replacing the fuse in the MGC-50: This procedure is also relevant for earlier versions of the MGC-100. Current MGC-100 units are provided with a circuit breaker instead of a fuse. If the MCU is working, exit the MGC Manager application and turn off the MCU.

  • Page 156: Replacing The Power Supply Module For The Mgc-50

    Chapter 5 - System Maintenance Pull on the handle of the Power Supply Module to pull the module out of its slot in the Powerplane. Carefully slide the Power Supply Module out through the front panel. Slide in the replacement Power Supply Module. Push the Power Supply Module firmly into the Powerplane making sure it is properly seated in its slot.
  • Page 157 Optional. Remove the two jack connectors from the fan panel to completely remove the fans from the MCU. Disconnect the AC input (J1) and the 12V/5V Sense connectors (J2). Disconnect the +5V and -5V power cables using a 9/16” (13 mm) M8 nut driver.
  • Page 158 Chapter 5 - System Maintenance From the rear, carefully slide the Power Supply Module out through the front panel and remove. Slide in the replacement Power Supply Module from the front panel and push it firmly into its place. 10. Tighten the six screws on the front panel of the MGC-50 that secure the Power Supply Module.

  • Page 159: Fan Replacement For The Mgc-100

    12. Connect the black power cable to the -5V screw in the order described in step 11 and ensure that the nut is well fastened and secured. 13. Reconnect the AC input (J1) and the 12V/5V Sense connectors (J2). 14. Reposition the fans cover panel on the rear panel. Ensure that the two fan connectors are in their place and tighten the six screws to secure the fan cover to its place.

  • Page 160: Fan Replacement For The Mgc-50

    Chapter 5 - System Maintenance Fan Replacement for the MGC-50 The fans are not hot swappable and cannot be replaced with the system running. Fans are located on the rear pane of the MGC-50. Use the following procedure to replace a faulty fan: Exit the MGC Manager application, turn off the MCU and unplug it from the AC outlet.

  • Page 161: Replacing The Main Control Module

    Unscrew the four screws on the Fans front panel that secure the faulty fan to the fan panel. Remove the fan. Position the replacement fan correctly on the rear panel. Tighten the four screws on the Fans front panel that secure the fan. Insert the connector to its place in the Fans panel and ensure that the panel mount locks are locked.
  • Page 162 Chapter 5 - System Maintenance 10. Tighten the four screws on the front panel of the MGC that secure the Main Control Module. 11. Reconnect all internal cables to the Main Control Module. 12. Close the cover of the Main Control Module on the rear panel of the MGC.

  • Page 163: Troubleshooting

    MGC Hardware and Installation Manual Troubleshooting The MGC unit provides on-line diagnostics for quick isolation and resolution of problems. The card status and the MCU's status can be viewed in the Browser and the Status areas of the MGC Manager main window. The full messages regarding the cards status can also be viewed in the Status box of the Card Settings dialog box.
  • Page 164 Chapter 5 - System Maintenance 5-20...

  • Page 165: Appendix A: Interfaces Pin Assignment

    Appendix A: Interfaces Pin Assignment PRI Port Assignment Pin 8 Pin 1 Table A-1: PRI Port Assignment Signal Name Receive Ring Receive Tip No connection Transmit Ring Transmit Tip No connection No connection No connection...

  • Page 166: Lan Pin Assignment

    Appendix A: Interfaces Pin Assignment LAN PIN Assignment Figure A-1: LAN Pin Assignment Alarms Port Pin Assignment Figure A-2: Alarm Port Pin Assignment Minor Major Critical Pin 1 Critical Major Minor...

  • Page 167: Rs-232 Pin Assignment

    RS-232 Pin Assignment Pin 1 Figure A-3: RS-232 Pin Assignment Table A-1: PRI Port Assignment Description Data Carrier Detect (DCD) Receive Data (RXD) Transmit DATA (TXD) Data Terminal Ready (DTR) GROUND (GND) Data Set Ready (DSR) Clear to Send (CTS) Ring Indicator (RI) MGC Hardware and Installation Manual...

  • Page 168: Serial Port Connectors Pin Out Assignment

    Appendix A: Interfaces Pin Assignment Serial Port Connectors Pin out Assignment SOURCE Transmitted Data (B) Return Transmit Signal Element (A) Received Data (B) Return Receiver Signal Element Timing (A) Request to Send (B) Return Remote Loopback Return Return Ext. Transmit Element Timing (A) Figure A-4: RS-530 Pin out (DB-25) SOURCE Common...
  • Page 169 SOURCE SIGNAL DESIGNATION Common Signal Ground Clear to Send Data Carrier Detect Ring Indicator Unassigned Unassigned Receive Data (A) Receive Data (B) Receive Timing (A) Receive Timing (B) Unassigned Unassigned Unassigned Unassigned Unassigned Unassigned Unassigned Figure A-6: V.35 Pin out (M-34 Connector) SIGNAL SOURCE DESIGNATION...
  • Page 170 Appendix A: Interfaces Pin Assignment Cables For the MPI-8 Network Interface Module There are three new cables for interfacing with the MPI-8 Network Interface Module in DCE. The difference in the cables is that they have certain pins that are crossed. Part Number: CON2044A –...

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