Polycom DOC2238A Corrective Maintenance

MGC+ Hardware and Installation Manual

5-9

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:

•ReadiManager IAM

•Control Unit (CU)

•Function Modules:

•Network Interface Modules (ISDN/T1-CAS, IP and MPI and/or Serial)

•MUX+ Modules

•Audio+ Modules

•Video+ Modules

•Data Modules

•I/O Cards

•Power Supply Module

•Fans

Before replacing parts:

•To ensure a part needs replacing, complete the troubleshooting

procedures.

•Identify exactly which part needs replacing.

•Make sure you have the correct replacement part on hand.

•Make sure you are using proper ESD equipment, to prevent damage to

the system.

Warning!

•All maintenance tasks are to be performed by qualified, authorized

personnel.

•Use only replacement parts supplied by your dealer.

•Follow all procedures. Do not skip any steps.

Unless specified differently, the procedures described here are the same for

both the MGC+100 and the MGC+50.

Contents

Main Page Table of Contents Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 Page Page Page Page MGC+ Unit Main Features 1-4 MGC+50/MGC+100 Specifications Table1-1 lists the specifications of the MGC+50 and the MGC+100 units. 1-5 1-6 MGC+ Control Unit Scope of Manual Conventions List of Abbreviations Installation and Configuration Workflow Page 2-1 Hardware Installation MGC+100 Hardware Installation Inspecting the MGC+/ReadiManager IAM Package Contents System Safety General Safety Precautions Rack Mount Safety Precautions Polycom MGC+/ReadiManagerReadiManager Precautions Unpacking and Positioning the MGC+100 Page Mounting the MGC+100 on a 23 Rack Page 2-8 Mounting the MGC+100 on a 19 Rack Page Page Installing the ReadiManager IAM in the MGC+ Unit Inspecting the MGC+ ReadiManager Server 2-12 MGC+ ReadiManager Installation 2-13 Page Page Page Connecting and Setting Up the MGC+100 Page Page Page MPI-4/8 Hardware Installation for the MGC+100 Chapter 2 - Hardware Installation 2-22 Figure 2-11: MPI Box rack mounting options POLYCOM In Out Page Page Page MGC+50 Hardware Installation Unpacking and Positioning the MGC+50 Page Mounting the MGC+50 on a Rack Page Page 2-31 POLYCOM Mounting Plate MPI Box Power Out Connecting and Setting Up the MGC+50 Page Page Page Page 2-37 MPI-4/8 Hardware Installation for the MGC+50 POLYCOM Figure 2-17: MPI Box mounting option MPI Box in 19" Rack Page Page Compact Flash Memory Use on the MGC+ Rescue Disk (pSOS) Swapping the Operating System (OS) MGC+ Software Installation and Configuration Initial ReadiConvene IAM Configuration First Entry MGC+ Control Unit (CU) IP Configuration Method 1 - Using a Compact Flash with the Updated LAN.CFG File: Page Page Method 2 - Using a Cross-over Cable and a Laptop to Connect to the MCU Properties button. Page Page Method 3 - Defining the IP address using a Keyboard and Mouse: Page Page Clocking System Architecture Page 3-3 Figure 3-3 describes the functional block diagram of the complete MGC+50. Rear Figure 3-3: MGC+50 components Backplane Front Figure 3-4 shows the physical layout of the MGC+100 and how it interfaces with the outside world. Figure 3-4: MGC+ unit functional block diagram 3-5 Information Flow Figure 3-5 shows the flow of information within the system. Figure 3-5: Signal flow process The MUX+ Module is not used with the H.323/SIP modules. Page Page Page Hardware Description 4-2 MGC+100 Components Location Page Page MGC+50 Components Location Page ReadiManager IAM Control Unit Page Backplane Control Bus Information Highway Powerplane Power Supply Module Power Module in the MGC+100 Power Module in the MGC+50 Power Supply Cord Circuit Breaker (AC Power) Fans Alarms Port Functional Modules 4-17 4-18 4-19 The Functional Modules are described in detail in the following segments. Net-2/Net-4/Net-8 or T1-CAS Network Interface Module Page Page IP+ Network Interface Module 4-24 Conferences that include SIP defined participants require IP+ cards from version 4.41. Module Port Capacity 4-25 IP+ Network Interface Module Architecture Figure 4-13: IP and IP+ Network Interface Module architecture The MPI-4/8 Network Interface Module 4-27 Figure 4-15: MPI box front panel Figure 4-16: MPI box rear panel 160-pin connector Converts data from four ports Single port connection Page Page Chapter 4 - Hardware Description 4-30 MPI Network Interface Module Architecture Figure 4-19: MPI-4/8 Network Interface module architecture MUX+ Module Page Page 4-34 MUX+ Participant Move Options From an encrypted conference to a non-encrypted conference or another encrypted conference. Page Page Audio+ Module Page Page Video+ Module Page Data Module Input/Output (I/O) Boards Page Page Page Page Page Page Page Page Page System Maintenance Chapter 5 - System Maintenance 5-2 Controls and Indicators MGC+ Unit Front Panel Figure 5-1: MGC+100 front panel MGC+ Page 5-4 5-5 Page Page Page Corrective Maintenance Replacing a Functional Module Replacing the I/O Cards of Functional Modules Replacing the Power Supply Modules on the MGC+100 Replacing the Power Supply Module on the MGC+50 Page Page Page Fan Replacement for the MGC+100 Fan Replacement for the MGC+50 Replacing the Main Control Module Replacing Compact Flash Accessories Replacing the Dongle Page Shutting Down the MGC+ 50/100 Troubleshooting A-1 Appendix A: Interfaces Pin Assignment PRI Port Assignment Page A-3 RS-232 Pin Assignment Appendix A: Interfaces Pin Assignment A-4 Serial Port Connectors Pin out Assignment Figure A-5: RS-449 Pin out (DB-37) Figure A-4: RS-530 Pin out (DB-25) A-5 Figure A-6: V.35 Pin out (M-34 Connector) Figure A-7: RS-366 Pin out (DB-25)