Nortel Networks BCM50 User Manual
Page 223
Appendix I GATM wiring chart
223
Installation and Maintenance Guide
7
38
Tip
Black-Green
075
105
13
Ring
Green-Black
8
39
Tip
Black-Brown
076
106
14
Ring
Brown-Black
—
40
No connection
Black-Slate
—
—
15
No connection
Slate-Black
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
—
49
No connection
Violet-Brown
—
—
24
No connection
Brown-Violet
Aux
(see
Note)
50
Tip
Violet-Slate
—
—
25
Ring
Slate-Violet
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, if a
power failure occurs, an analog set on line 1 activates (powered by the CO).
Table 47 GATM8 RJ-21 connector wiring (Sheet 2 of 2)
Line
Pin
Connection
Wire color
Default line numbers on
Expansion port 1
Default line numbers on
Expansion port 2