Nortel Networks 553-3001-211 The insertion loss from IPE ports to IPE ports is as follows:

NT8D14 Universal Trunk card Page 601 of 894
Circuit Card Description and Installation
The insertion loss from IPE ports to IPE ports is as follows:
Table 183
Insertion Loss from IPE Ports to IPE Ports (measured in dB)
IPE Ports
IPE Ports
500/2500
Line
Digital
Line
2/4 Wire
E&M Trunk
4 Wire
(ESN) E&M
Trunk
CO/FX
/WATS
Loop Tie
Trunk
CO/FX/
WATS Loop
Tie Trunk
2.5
0
0
-3.5
0.5
0
0
-0.5
0.5
0.5