Chapter 4 - Hardware Description

Input/Output Cards

Input/Output (I/O) Cards connect the Functional Modules to external systems and networks. The I/O Cards are housed behind the Backplane, opposite the Functional Modules.

The I/O Cards, which are small and simple, are installed via the rear panel of the MGC. A connector at the rear of each I/O card connects the card to the Backplane. 0

The following I/O cards may be installed in the MCU:

The NETIO card connects two PRI/Leased connections from the MGC rear panel to a Net-E1/Net-T1 ISDN Network Interface Module.

The IO-2 card connects two PRI/Leased connections from the MGC rear panel to a Net-2 ISDN/T1-CAS Network Interface Module.

Figure 4-34: ISDN /T1-CAS Network connection for two spans

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Polycom MGC-50/MGC-100 installation manual Input/Output Cards, Isdn /T1-CAS Network connection for two spans