Engineering Guidelines - Nortel Communication Server 1000 Fundamentals

34 Description
independent circuit packs. The circuit pack responds to all cardLAN
messages sent to both card slots. In the event that the circuit pack has a
failure, both card slots indicate the failure.
Remote Mini-carrier Interface card description
The Remote Mini-carrier Interface plugs into the core processor slot
and controls up to eight standard IPE line cards
Mini-carrier Interface cabling" (page
T1
The T1 interface is capable of driving 655 feet without a repeater. A CSU
is required for connection to the Public Switched Telephone Network
(PSTN).
Processor
The 68000-based processor controls all on-board functions, all RMI
operation and steers the proper T1 timeslots to each DS-30X channel.
The microprocessor has its own EPROM and RAM for program and data
storage. See the firmware section for more information on the operation
of the processor.
CardLAN
The cardLAN interface is used to provide self-test and maintenance
information and to poll all eight line cards.

Engineering guidelines

All LMIs must reside in the same IPE shelf or cabinet as their associated
LMXs. Preferably, the LMI should be placed in slot 0 or 9 (NT8D37
shelves) or slot 1 (all others). If LMXs are required, the first LMX should
be placed in the slot immediately to the right of the LMI. Additional LMXs
are placed next to the first LMX. Grouped in this way, the cards may be
randomly placed, but each card requires two consecutive card slots and
each group may not be split between multiple IPE shelves.
Table 4
LMI and LMX IPE Shelf Compatibility
Description
Local IPE Shelf
NT8D37AA or IPE Module (AC
NT8D37DC or or DC powered)
NT8D37DE
NT8D37BA or IPE Module (AC
NT8D37EC or DC powered)
LMI
Compatibility
Must be upgrade
d to NT8D37BA
or NT8D37EC
NT5D64
Nortel Communication Server 1000
Mini-Carrier Remote Fundamentals
NN43001-557 04.01 4 June 2010
Copyright © 2003-2010 Nortel Networks. All Rights Reserved.
(Figure 10 "Remote
43)).
LMX
Compatibility
Must be upgrade
d to NT8D37BA
or NT8D37EC
NT5D65
LMI & LMX Card
Slot
Compatibility
Must be upgrade
d to NT8D37BA
or NT8D37EC
0-6 and 8-14