Nortel 15000 Hardware Description page 157

faceplate of all equipment on a site record and on labels for the cables and
panels. Some sparing panel faceplates have writable labels for each
connection.
A sparing panel has a transmit (Tx) and receive (Rx) pair for each port. When
cabling Nortel Networks Multiservice Switch FPs and sparing panels, do
Tx-to-Tx and Rx-to-Rx for all equipment from the FP up to the far-end
termination of the FP connection.
For the 12-port and 4-port cards that have the 8W8 mini-coax D-sub
connectors on the faceplate, the actual port numbers are not indicated on the
other end of the prefabricated signaling cables. The other end can be another
8W8 or a cluster of 8 BNC cables numbered 1 to 8. The pattern of pin (port)
numbering is the same for all mini-coax connectors. Use the following to
determine the port-to-port connections:
• the figure
NTHR58 cable assembly (page 139)
• the figure
or E3 FP (page 158)
• the table
DS3Ch FR FP (page 140)
Note that BNC 1 to 8 labels correspond to 8W8 pins A1 to A8 respectively, but
the actual port number depends on whether the cable is plugged into P0, P1,
or P2. In the figure
DS3 or E3 FP (page
FPs with the 8W8 mini-coax D-sub connectors.
The 12-port DS3 or E3 sparing panel NTQS31 can operate as a fanout panel
for up to six DS3 or E3 FPs with 8W8 connectors, that is, with no sparing.
Copyright © 2005, Nortel Networks
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Control and function processors
Labels of mini-coax and BNC cable connections on a 4-port
Port mappings of the 8W8 cable connections of a 12-port DS3
Mapping an 8W8 and BNC cable to a termination panel from a
Port mappings of the 8W8 cable connections of a 12-port
158), the port mappings of P0 apply to any of the 4-port
Nortel Networks Multiservice Switch 15000/20000
Hardware Description
NN10600-120 sPCR6.1S1 Standard
sPCR6.1 February 2005
Nortel Networks Confidential