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B. Pin Assignments and Indicators 1000-A2-GN22-00
B-6 February 2003
Table B–4. RJ21X Pin Assignments
T1
Circuit
Wire Color Tip Pin
Ring
Pin
Wire Color
T1
Circuit
Tx1 Blue/White 26
1White/BlueTx1
Rx1 Orange/White 27
2 White/Orange Rx1
Tx2 Green/White 28
3 White/Green Tx2
Rx2 Brown/White 29
4White/BrownRx2
Tx3 Slate/White 30
5 White/Slate Tx3
Rx3 Blue/Red 31
6Red/Blue Rx3
Tx4 Orange/Red 32
7Red/OrangeTx4
Rx4 Green/Red 33
8 Red/Green Rx4
Tx5 Brown/Red 34
9Red/BrownTx5
Rx5 Slate/Red 35
10 Red/Slate Rx5
Tx6 Blue/Black 36
11 Black/Blue Tx6
Rx6 Orange/Black 37
12 Black/Orange Rx6
Tx7 Green/Black 38
13 Black/Green Tx7
Rx7 Brown/Black 39
14 Black/Brown Rx7
Tx8 Slate/Black 40
15 Black/Slate Tx8
Rx8 Blue/Yellow 41
16 Yellow/Blue Rx8
Tx9 Orange/Yellow 42
17 Yellow/Orange Tx9
Rx9 Green/Yellow 43
18 Yellow/Green Rx9
Tx10 Brown/Yellow 44
19 Yellow/Brown Tx10
Rx10 Slate/Yellow 45
20 Yellow/Slate Rx10
Tx11 Blue/Violet 46
21 Violet/Blue Tx11
Rx11 Orange/Violet 47
22 Violet/Orange Rx11
Tx12 Green/Violet 48
23 Violet/Green Tx12
Rx12 Brown/Violet 49
24 Violet/Brown Rx12
Unused
Slate/Violet 50 25 Violet/Slate
Unused