Nortel BCM50 Installation And Maintenance Manual page 206

206 Appendix A RJ-21 telephony connector wiring chart
Table 34 RJ-21 telephony connector wiring (Sheet 2 of 2)
Device Pin Connection
34 No connection
9
9 No connection
35 Tip
10
10 Ring
36 Tip
11
11 Ring
37 Tip
12
12 Ring
38 Tip
13
13 Ring
39 Tip
14
14 Ring
40 Tip
15
15 Ring
41 Tip
16
16 Ring
42 Tip
17
17 Ring
43 Tip
18
18 Ring
44 Tip
19
19 Ring
45 Tip
20
20 Ring
46 Tip
21
21 Ring
47 Tip
22
22 Ring
48 Tip
23
23 Ring
49 Tip
24
24 Ring
50 Tip
25
25 Ring
N0027152 01 N0027152 01
Wire color Type of device
Red-Brown
No connection
Brown-Red
Red-Slate
Auxiliary Ringer
Slate-Red
Black-Blue
Page Relay
Blue-Black
Black-Orange
Page Output
Orange-Black
Black-Green
Music Source
Green-Black
Black-Brown
Digital telephone
Brown-Black
Black-Slate
Digital telephone
Slate-Black
Yellow-Blue
Digital telephone
Blue-Yellow
Yellow-Orange
Digital telephone
Orange-Yellow
Yellow-Green
Digital telephone
Green-Yellow
Yellow-Brown
Digital telephone
Brown-Yellow
Yellow-Slate
Digital telephone
Slate-Yellow
Violet-Blue
Digital telephone
Blue-Violet
Violet-Orange
Digital telephone
Orange-Violet
Violet-Green
Digital telephone
Green-Violet
Violet-Brown
Digital telephone
Brown-Violet
Violet-Slate
Digital telephone
Slate-Violet
Default line
Default DN number
— —
— —
— —
— —
— —
232 —
231 —
230 —
229 —
228 —
227 —
226 —
225 —
224 —
223 —
222 —
221 —