NT8D15 E&M Trunk Card Page 397 of 544
Option 11C and 11C Mini Technical Reference Guide
Table 120
Insertion Loss from IPE Ports to IPE Ports (measured in dB)
Paging trunk operation
When used in the Paging mode the trunk circuit is connected to a customer-
provided paging amplifier system. When the trunk is accessed by dial up or
attendant key operation, it provides a loop closure across control leads A and
B. In a typical application this will transfer the input of the paging amplifier
system to the transmission path of the Trunk.
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
2/4 Wire
E&M Trunk
6
3
3.5
-0.5
1
1
4 Wire
(ESN) E&M
Trunk
5.5
2.5
3
-1
0.5
0.5
0
0