Nortel Communication Server 1000 Fundamentals page 16

16 Description
The LMI and LMX are double-wide cards, each of which occupies two
adjacent line card slots. They consist of a motherboard with circuitry and a
small daughterboard that connects to the DS-30X interface of the adjacent
slot. The RMI is a single-width card that fits into the slot labeled 0 or CPU
in the cabinet.
The system may be configured as if each slot occupied by an LMI or an
LMX was occupied by one of the following standard IPE line cards:
•
Extended Digital Line Card (XDLC)
•
Extended Universal Trunk (XUT)
•
Extended Analog Line Card (XALC)
•
Extended Message-waiting Line Card (XMLC)
•
Lineside T1 Interface (LTI)
Each card configured at the local site is electronically transported to the
remote site, where an actual line card is used. The line cards at the
remote site function as if they were at the local site.
Starting with the Mini Carrier Remote Firmware 12.01, LMI and RMI have
a daughterboard installed which contains the Flash Memory Module
(FMM).
Local site components
The local site components of MCR are the LMI and the LMX. Up to 3
LMXs may be connected to an LMI to form a "group." The cards in a group
connect in a daisy chain using the LMI/LMX Multi-I/O cable assembly
(NT5D86), see
(page
each LMX. The LMI switches the PCM between the T1 timeslots and the
DS-30X timeslots. The LMXs provide an interface for signaling messages
between the LMI and the DS-30X from the IPE backplane. The LMI has
a MicroLink interface to each LMX and to the RMI. The LMI Multi-I/O
cable assembly (NT5D85) is used to connect the MMI, SDI, Alarm, and
up to 2 T1 carrier links to the LMI
(NT5D85)" (page
Remote site components
The remote site consists of a Remote Mini-carrier Interface card (RMI) and
an cabinet. The cabinet contains the standard power supply and standard
IPE line cards. The only additional components at the remote site are
the RMI and the RMI Multi-I/O cable assembly (NT5D87,
Multi-I/O Cable Assembly (NT5D87)" (page
core processor slot in the cabinet and communicates with the LMI in order
Figure 6 "LMI/LMX Multi-I/O cable assembly (NT5D86)"
22). This cable carries DS-30X and MicroLink between the LMI and
21)).
Nortel Communication Server 1000
Mini-Carrier Remote Fundamentals
NN43001-557 04.01 4 June 2010
Copyright © 2003-2010 Nortel Networks. All Rights Reserved.
(Figure 5 "LMI Multi-I/O cable assembly
23)). The RMI plugs into the
Figure 7 "RMI