Nortel BCM200 Installation And Maintenance Manual page 353

Table 93 GATM8 RJ-21 connector wiring (Sheet 2 of 2)
Line Pin Connection
8 39 Tip
14 Ring
— 40 No connection
15 No connection
. . .
. . .
. . .
— 49 No connection
24 No connection
Aux 50 Tip
(see
25 Ring
Note)
Note: The Aux port supports full data speeds. When the line
is in use by an analog device, the icon is lit on the phone to
indicate it is in use. If you try to seize the line using the
phone, the display shows "in use." Also, in the event of a
power failure, an analog set on line 1 goes active (powered
by the CO).
Wire color
Black-Brown
Brown-Black
Black-Slate
Slate-Black
.
.
.
Violet-Brown
Brown-Violet
Violet-Slate
Slate-Violet
BCM200/400 4.0 Installation and Maintenance Guide
Appendix G GATM wiring chart 353