Telephony Wiring (Rj-21) - MCK EXTender 7000 Installation Manual

Telephony Wiring (RJ-21)

Pin
26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
TM
EXTender 7000 Installation Guide
Table 3: Pin Assignments (25-Pair Cable)
Cable Port
Pair
WH/BL 1
WH/BL
WH/OR 2
WH/OR
WH/GN 3
WH/GR
WH/BR 4
WH/BR
WH/SL 5
WH/SL
RD/BL 6
RD/BL
RD/OR 7
RD/OR
RD/GN 8
RD/GN
RD/BR 9
RD/BR
RD/SL 10
RD/SL
BK/BL 11
BK/BL
BK/OR 12
BK/OR
Wire Color Abbreviations:
BK=Black BR=Brown
YL=Yellow GN=Green
Pin
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25
RD=Red OR=Orange
BL=Blue VI=Violet
Cable Port
Pair
GN/BK 13
BL/GN
BK/BR 14
BK/BR
BK/SL 15
BK/SL
YL/BL 16
YL/BL
YL/OR 17
YL/OR
YL/GN 18
YL/GN
YL/BR 19
YL/BR
YL/SL 20
YL/SL
VI/BL 21
VI/BL
VI/OR 22
VI/OR
VI/GN 23
VI/GN
VI/BR 24
VI/BR
VI/SL GND
VI/SL
SL=Slate
WH=White
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