Nortel Communication Server 100 Manual page 69

Installing the Local Carrier Interface cable assemblies
The Local Carrier Interface card has two connectors located on the
faceplate.These connectors provide:
•
connection to the NT7R58AA Maintenance Panel assembly for
daisy-chaining the Local Carrier Interface cards and the system
monitor
•
connection to the NT7R57AA Carrier Panel assembly for the carrier
links
A DB-9 female connector on the faceplate of the NT7R51 Local Carrier
Interface card connects to the NT7R58AA Maintenance Panel when more
than one Local Carrier Interface card is equipped in the system. This
allows daisy-chaining of these Local Carrier Interface cards to provide
access to any of the Local Carrier Interface cards using the local MMI
terminal at local SDI port as Host.
A DB-25 connector on the Local Carrier Interface card faceplate connects
the Local Carrier Interface card to the NT7R57AA Carrier Panel assembly
for connection to the local system monitor and the carrier links. The carrier
connectors on the NT7R57AA Carrier Panel assembly are 8-pin modular
jacks, which connect directly to the carrier link 8-pin modular plugs. It also
connects to the NT7R58AA Maintenance Panel assembly to provide the
SDI port and the MMI terminal connections.
If an E1 carrier link is a coaxial cable terminated with BNC connectors, the
NT7R67EA Coaxial Interface Adapter cable (8-pin modular plug to BNC) is
used to connect the 8-pin modular jacks at the NT7R57AA Carrier Panel
assembly to the BNC carrier link connectors.
Refer to Figure 9 "Local Carrier Interface card DIP-switch positions
and function" (page 67)
DIP-switch locations and functions" (page 89)
SW8 for E1 operation and carrier impedance of 75 Ohms.
Note:
For multiple Local Carrier Interface cards connected in a
daisy-chain, it might not always be possible to find empty network card
slots and or suitable I/O panel connector cutouts to accommodate two
or more Local Carrier Interface cards. In that case, it can be necessary
to use suitable network card slots in a different module or column. If the
cable assemblies are not long enough to span between the faceplates
and the I/O panels, use extension cables.
Figure 10 "Local Carrier Interface card faceplate cable connections in
Meridian 1 PBX 61C" (page 70)
Local Carrier Interface card and faceplate cable already installed to the
NT7R57AA Carrier and NT7R58AA Maintenance Panel assemblies.
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
and Figure 14 "Remote Carrier Interface card
shows a Meridian 1 PBX 61Cwith the
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Local equipment installation 69
to set SW1, SW2, SW5, and