Nortel BCM50 Installation And Maintenance Manual page 218

218 Appendix G GATM wiring chart
Table 43 GATM4 RJ-21 connector wiring (Sheet 2 of 2)
Line Pin Connection
50 Tip
Aux
25 Ring
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).
Table 44 lists the wiring details for the RJ-21 connector on the GATM8.
Table 44 GATM8 RJ-21 connector wiring (Sheet 1 of 2)
Line Pin Connection
26 Tip
1
1 Ring
27 Tip
2
2 Ring
28 No connection
—
3 No connection
29 No connection
—
4 No connection
30 Tip
3
5 Ring
31 Tip
4
6 Ring
32 No connection
—
7 No connection
33 No connection
—
8 No connection
34 Tip
5
9 Ring
35 Tip
6
10 Ring
36 No connection
—
11 No connection
37 No connection
—
12 No connection
38 Tip
7
13 Ring
39 Tip
8
14 Ring
N0027152 01 N0027152 01
Default line numbers on
Wire color
Violet-Slate
Slate-Violet
Default line numbers on
Wire color Expansion port 1
White-Blue
Blue-White
White-Orange
Orange-White
White-Green
Green-White
White-Brown
Brown-White
White-Slate
Slate-White
Red-Blue
Blue-Red
Red-Orange
Orange-Red
Red-Green
Green-Red
Red-Brown
Brown-Red
Red-Slate
Slate-Red
Black-Blue
Blue-Black
Black-Orange
Orange-Black
Black-Green
Green-Black
Black-Brown
Brown-Black
Expansion port 1
—
Default line numbers on
065
066
—
—
067
068
—
—
073
074
—
—
075
076
Default line numbers on
Expansion port 2
—
Expansion port 2
095
096
—
—
097
098
—
—
103
104
—
—
105
106