Nortel Networks Circuit Card - Manual (Page 247)

NT5D11 and NT5D14 Lineside T1 Interface cards Page 247 of 906
Circuit Card Description and Installation
Similarly, the lineside T1 can be used to provide a connection between the
system and a remote Norstar system. See Figure 39. In this case, channel
banks would not be required if the Norstar system is equipped with a T1
interface.
Note: The lineside T1 card audio levels must be considered when
determining the appropriateness of an application.
Figure 39
Lineside T1 interface connection to Norstar system
553-AAA1125
T1
Norstar
T1 T1
LTI
System
Public
network
T1