Polycom MGC-100 Manuale Utente

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Chapter 2 - Hardware Description
2-8
MGC Unit Components
The following table describes the MGC components. A more detailed 
description is found in the MGC-50/MGC-100 Hardware & Installation 
Manual.
Table 2-1: MGC Component Description
MGC 
Component
Description
Control Module
The Main Control Module performs the conference setup 
and termination and resource allocation in both the 
MGC-100 and the MGC-50. 
Backplane
The backplane is an electronic circuit board into which 
The Network Interface Module, the Main Control Module, 
Functional Modules, and I/O cards are plugged so the 
various modules can communicate with each other. The 
Backplane is based on the “universal slot” concept, where 
any card can be inserted in any slot.
Power Plane
The Power Plane is a conducting layer providing power to 
the components. It is part of the Backplane and is 
designed to accommodate hot swapping of power 
supplies. 
Power Supply 
Modules
The Power Supply Module is located underneath the Main 
Control Module and the Functional Modules and is 
connected to the backplane. It provides power to the 
Backplane by means of a power bus. Both MGC units 
(MGC-100 and MGC-50) operate at 100-240 volts AC 50/
60 Hz.
Fans
Three (MGC-100) or two (MGC-50) fans are mounted at 
the bottom of the rear panel. 
Alarms Port
In the MGC-100 an Alarms port is located on the Main 
Control Module. The dry contacts on the rear panel of the 
MGC-100 are for connecting to the customer’s alarm 
system.