Mitel SX-200 EL Technician's Handbook page 208

Technician's Handbook
Table 35: BRI Port to Tip/Ring Assignment
BRI
Module
Number
1
1
1
1
2
2
2
2
3
3
3
3
NOTE: 1. The number 1 BRI module is installed in the upper left corner of the BRI card.
The number 2 BRI module is installed below the number 1 BRI module, and
the number 3 BRI module is installed beside the number 2 BRI module.
2. BRI cards are "hot-swappable"; that is, that you can replace a configured, run-
ning BRI card while the power is on. You may also de-program the BRI card,
install the card, and re-configure the card for another slot.
3. Each BRI module can be configured with either line-side or trunk-side interfac-
es (all four circuits on a module must be in the same mode). Line and trunk
side interfaces are software-programmable (using CDE forms), and no jumper
changes are needed.
4. If you deprogram a BRI card, remove the BRI card from the cabinet as soon
as possible. This action decreases the load on the BCC III.
5. After deprogramming a BRI card, remove the BRI card from the slot BEFORE
installing a BRI card in another slot.
6. The U bus can be converted to an S/T interface using an NT 1 where required.
7. Use IMAT to obtain the BRI card's maintenance logs. The Maintenance
module provides serial connectivity to the PC (IMAT) for BRI maintenance.
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BRI Module Port
Number
1
2
3
4
1
2
3
4
1
2
3
4
Tip/Ring Pair
Number
9
10
11
12
3
4
5
6
1
2
7
8