Nortel Networks Circuit Card 311 - Manual (Page 1067)

Architecture 1067
Figure 305 "NTRB21 TMDI card faceplate" (page 1068) shows a faceplate
of the NTRB21 TMDI card.
The NTRB21 TMDI card provides 1.5 MBits Digital Trunk Interface or
Primary Rate Interface functionality on the CS 1000. The NTRB21 has
a built-in downloadable D-channel.
Note: The NTRB21 can be used with the NTAK09 DTI/PRI card (with
the NTBK51 downloadable D-channel daughterboard).
Architecture
Signaling interface
The signaling interface performs an 8 Kbps signaling for all 24 channels
and interfaces directly to the DS-30X link. Messages transmitted in both
directions are three bytes long.
The signaling interface performs an 8 Kbps signaling for all 24 channels
and interfaces directly to the DS-30X link. Messages in both directions of
transmission are three bytes long.
The signaling interface performs an 8 Kbps signaling for all 24 channels
and interfaces directly to the DS-30X link. Messages transmitted in both
directions are three bytes long.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.