Polycom MGC Administrator, Руководство администратора

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Chapter 4 - MCU Card Management
4-2
Managing the Functional Module Cards
(MGC-50/MGC-100/MGC+50/MGC+100)
The MGC-100/MGC+100 can contain up to 16 functional module cards,
which can occupy slots 1 through 16. The MGC-50/MGC+50 can contain up
to 8 functional module cards, which can occupy slots 1 through 8. It is based
on the “universal slot” concept, where different modules may be installed
depending on the users’ port capacity and functionality requirements forming
user specific configurations. The Functional Modules perform the various
audio, video, and data processing functions for the MGC unit.
An additional slot (Slot A) is used by the Main Control Module.
Any module may be inserted into any slot. All functional modules are hot-
swappable.
Each module is automatically identified by the system, as well as the versions
of the programs embedded in it. These parameters may be viewed in the card
Properties–Card Settings dialog box. When a card is installed in the MCU, its
hardware and software versions are read by the system. The MCU's Control
Unit checks these versions, and if they do not match the expected versions,
the Control Unit downloads the appropriate software versions stored in its
memory. Table 4-1lists the available functional modules.
A description of the MGC-25 cards can be found in the MGC-25 Getting
Started Guide.
The MGC+ hardware can include the Net-2/4/8, IP+24/48/96, MPI, MUX+,
Audio+, Video+ and T.120 cards.
Table 4-1: Functional Modules
Functional Module Function Port capacity
Net-T1/Net-E1 ISDN
Network Interface
Interfaces between the MGC
unit and the ISDN network. 46/60 ISDN channels
Net-2 ISDN/T1-CAS
Network Interface Interfaces between the MGC
unit and the ISDN network. 46/60ISDN channels or
48 T1-CAS Channels