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Hardware description 197
Table 72
Media Gateway and Media Gateway Expansion slot assignments
Media Gateway/Media Gateway Expansion
First
Second
Third Fourth
Physical
card
slot
Logical
card
slot
Physical
card
slot
Logical
card
slot
Physical
card
slot
Logical
card
slot
Physical
card
slot
Logical
card
slot
1 11 1 21 1 31 1 41
2 12 2 22 2 32 2 42
3 13 3 23 3 33 3 43
4 14 4 24 4 34 4 44
5
*
5
*
5
*
5
*
Media
Gateway
6
*
6
*
6
*
6
*
7
17
7
27
7
37
7
47
8 18 8 28 8 38 8 48
9 19 9 29 9 39 9 49
Media
Gateway
Expansion
10 20 10 30 10 40 10 50
Legend
* Not supported.
NTRB21 TMDI card
The NTRB21 TMDI card provides 1.5 MBit/s Digital Trunk Interface or
Primary Rate Interface functionality on the system. The NTRB21 has a
built-in, downloadable D-channel.
The NTRB21can be equipped with the NTAK09 DTI/PRI card (with the
NTBK51 downloadable D-channel daughterboard) and the NTAK93 DCHI
daughterboard.
Note: A TMDI D-channel programmed as a backup D-channel against a
non-TMDI primary D-channel is not supported. Backup D-channels are
supported only when programmed against TMDI primary D-channels.
Figure 76 "NTRB21 TMDI card faceplate" (page 198) shows a faceplate
of the NTRB21 TMDI card.
Shelf slot assignments
For Small Systems, the NTRB21 can be placed in main and expansion
cabinets in any single card slot given in Table 74 "Shelf slot assignments
for NTRB21, NTAK09, and NTAK20" (page 202).
The Media Gateway Expansion does not support digital trunks (DTI/PRI).
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Copyright © 2003-2007, Nortel Networks
.