B. Pin Assignments and Indicators
B-6
Table B–4. RJ21X Pin Assignments
T1
Wire Color
Circuit
Tx1
Blue/White
Rx1
Orange/White
Tx2
Green/White
Rx2
Brown/White
Tx3
Slate/White
Rx3
Blue/Red
Tx4
Orange/Red
Rx4
Green/Red
Tx5
Brown/Red
Rx5
Slate/Red
Tx6
Blue/Black
Rx6
Orange/Black
Tx7
Green/Black
Rx7
Brown/Black
Tx8
Slate/Black
Rx8
Blue/Yellow
Tx9
Orange/Yellow
Rx9
Green/Yellow
Tx10
Brown/Yellow
Rx10
Slate/Yellow
Tx11
Blue/Violet
Rx11
Orange/Violet
Tx12
Green/Violet
Rx12
Brown/Violet
Slate/Violet
Unused
Ring
Tip Pin
Wire Color
Pin
26
1
White/Blue
27
2
White/Orange
28
3
White/Green
29
4
White/Brown
30
5
White/Slate
31
6
Red/Blue
32
7
Red/Orange
33
8
Red/Green
34
9
Red/Brown
35
10
Red/Slate
36
11
Black/Blue
37
12
Black/Orange
38
13
Black/Green
39
14
Black/Brown
40
15
Black/Slate
41
16
Yellow/Blue
42
17
Yellow/Orange
43
18
Yellow/Green
44
19
Yellow/Brown
45
20
Yellow/Slate
46
21
Violet/Blue
47
22
Violet/Orange
48
23
Violet/Green
49
24
Violet/Brown
50
25
Violet/Slate
1000-A2-GN22-00
T1
Circuit
Tx1
Rx1
Tx2
Rx2
Tx3
Rx3
Tx4
Rx4
Tx5
Rx5
Tx6
Rx6
Tx7
Rx7
Tx8
Rx8
Tx9
Rx9
Tx10
Rx10
Tx11
Rx11
Tx12
Rx12
Unused
February 2003