User manual POLYCOM MGC-100

[. . . ] MGC-50/MGC-100 Hardware & Installation Manual Version 7. 5 Copyright © 2006 Polycom, Inc. DOC2068F Version 7. 5 Proprietary and Confidential The information contained herein is the sole intellectual property of Polycom, Inc. No distribution, reproduction or unauthorized use of these materials is permitted without the expressed written consent of Polycom, Inc. Information contained herein is subject to change without notice and does not represent a commitment of any type on the part of Polycom, Inc. [. . . ] In normal mode the Hard Drive 7- segment LED is set to 0 When the LED does not display 0, contact support. 7-segment LED Removable disk Hard Drive Key Figure 4-10: Removable Hard Drive Front Panel View Removing the Hard Drive 1. Insert the key into the Key Lock and turn the key clockwise to unlock the Hard Drive. The Hard Drive is released from the drive's housing. 4-15 Chapter 4 - Hardware Description 4. 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 Configuration Change on XPEK and pSOS OS" on page 2-35 Disk Rescue cannot be performed on a Control Unit with pSOS Operating System 4-16 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. In the MGC-100, the front of the Backplane contains 16 slots for Functional Modules and an additional slot (Slot A) for the Main Control Module. The back of the Backplane contains 17 slots for I/O cards (16 slots for I/O and one "dummy" slot). The Network Interface Modules connected via the Backplane to I/O cards, which connects the system to the network. The Power Supply Module provides power to the Backplane via a power bus. Backplane H. 323 I/O H. 323 Network I/F Rear NET I/O ATM I/O ATM Network I/F ISDN Network I/F MUX MUSIC I/O Video Data Audio Main Control Module Front Power Supply Module Figure 4-11: MGC-100 Backplane 4-17 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" slot. The Network Interface Module is connected via the Backplane to I/O cards, which connect the system to the network. The Power Supply Module provides power to the Backplane via a power bus. Backplane MPI Serial Network I/F H. 323 I/O H. 323 Network I/F Rear NET I/O ATM I/O ATM Network I/F ISDN Network I/F MUX MUSIC I/O Video Data Audio Main Control Module Front Power Supply Module Figure 4-12: MGC-50 Backplane Control Bus The MGC-100 and the MGC-50 use the same Control Bus. The Control Bus connects the Main Control Module to the Functional Modules. A double bus is implemented for redundancy. 4-18 MGC Hardware and Installation Manual Information Highway The Information Highway is a high capacity TDM-type bus. 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. In IP calls (H. 323 and SIP) the information is transferred directly to the IP network module and from there to the Audio, Video and Data modules. Powerplane The MGC-100, as opposed to the MGC-50, uses a Powerplane. The Powerplane and Power Supply Modules are designed to accommodate hot swapping of power supplies. In the MGC-50, there is one power supply, which is connected to the backplane and fans via wire leads. 4-19 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. The Power Supply Modules are hot swappable and connect to the Powerplane, which is part of the Backplane. One Power Supply Module is required to power a partially populated system. Two Power Supply Modules are required to power a full system or a partially populated system with power supply redundancy. Three Power Supply Modules are required to power a full system with power supply redundancy. The capacity of each power supply module is shown in Table 4-1. Table 4-1: MGC-100 Power supply modules capacity Voltage (V) 5 12 -12 Maximum current (Amp. ) 90 5 1 The MGC-100 can accommodate a -48 volt DC power supply. [. . . ] Open the cover of the Main Control Module on the rear panel of the MGC. Unscrew the four screws on the front panel of the MGC that secure the Main Control Module. Use the plastic ejectors to pull the Main Control Module out of its slot in the Backplane. Push the Main Control Module firmly into the Backplane making sure it is properly seated in its slot. 5-17 Chapter 5 - System Maintenance 10. [. . . ]