Nortel BCM200 Installation And Maintenance Manual page 338

338 Appendix A 4x16 wiring charts
Table 86 lists the wiring details for the RJ-21 connector on the 4x16 MBM.
Table 86 4x16 MBM RJ-21 connector wiring (Sheet 1 of 2)
Set Pin Connection
1 26 Tip
1 Ring
2 27 Tip
2 Ring
3 28 Tip
3 Ring
4 29 Tip
4 Ring
5 30 Tip
5 Ring
6 31 Tip
6 Ring
7 32 Tip
7 Ring
8 33 Tip
8 Ring
9 34 Tip
9 Ring
10 35 Tip
10 Ring
11 36 Tip
11 Ring
12 37 Tip
12 Ring
13 38 Tip
13 Ring
14 39 Tip
14 Ring
15 40 Tip
15 Ring
16 41 Tip
16 Ring
— 42 No connection
17 No connection
N0060612 N0060612
Wire color
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
Black-Slate
Slate-Black
Yellow-Blue
Blue-Yellow
Yellow-Orange
Orange-Yellow