Polycom DOC2238A Control Unit

Chapter 4 - Hardware Description

4-8

Control Unit

The Main Control Unit performs the functions of conference setup,

conference termination, 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 256MB of memory. The Control Unit is

located in slot A of the MGC+, and is the connected to the MCU’s backplane

and Control Module rear I/O panel.

The front LED’s indicate the status if the module is in operation and

functioning properly.

Figure 4-7 shows a block diagram of the Main Control Module.

Figure 4-6: Block diagram of MCM

Communications

Controller, C8M,

CCOM

Serial

Interface

LAN

Interface

Main

CPU

Hard

Disk

External Flash

Disk

CPU

BUS

The MGC+ unit can contain different types of functional 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.

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)