Avaya Nortel Communication Server 1000 Reference page 601

Figure 166: MG XPEC block diagram
The MGC and MG XPEC run the same MGC loadware. A run-time check exists to identify
which hardware platform the MGC loadware is running on. Therefore, each half of the dual
card assembly functions identically to the MGC, except for the following differences:
• Each board of the dual assembly controls 8 slots of the IPE shelf for a total of 16. The
MGC controls 10 slots. The motherboard controls the 8 IPE slots to the left of the MG
XPEC and the daughter board controls the 8 IPE slots to the right of the MG XPEC. Card
slots are numbered from 0 to 7 for the mother board and 0 to 7 for the daughter board,
whereas the MGC card slots are numbered from 1 to 10.
• IPE shelves do not support CEMUX cards. CEMUX cards are supported in a CS 1000E
shelf populated with an MGC card.
• The mother board and daughter board share the Card LAN bus between each other.
• The third TTY on the MG XPEC motherboard is dedicated for support of the XSM card
(NT8D22). The third TTY is not available on the daughter board for the MG XPEC.
• Boot messages only display on TTY port 0 (needed for PMS support).
• MG XPEC cards slots 8, 9 and 10 are dedicated for DSP resources.
Circuit Card Reference
Introduction
July 2011 601