Nortel Communication Server 100 Manual page 207

Table 40
Local and Remote Carrier IPE to CSU cable (NT7R87AA) pin assignment
Carrier Panel 8-pin Modular Jack to CSU DB-15 Pin Assignment
8-pin
jack DB-15
Pins Pins
1 11
2 3
4 9
5
1
Note: If the carrier links are just hardwired without using Telco T1 or E1 carrier
links, the 8-pin modular plug pins 2 and 1must be turned over (swapped) with
pins 4 and 5 at one end. However, if using a T1 or an E1 Telco network, the
network provides that turnover.
Figure 31 "RJ-48-type 8-pin modular plug pin assignments" (page
208) shows the 8-pin modular plug pin positions from left to right when the
tab is in the back.
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Notice for Canadian installations 207
Signal
Name Signal Description
RTIPx Carrier Receive Tip (from network)
RRINGx Carrier Receive Ring (from network)
TRINGx Carrier Transmit Ring (to network)
TTIPx Carrier Transmit Tip (to network)