AT&T 75 - Page 220

110-TYPE HARDWARE
TABLE 3-A. 25-Pair Cable Termination on a 110-Type Wiring Block
(Contd on Next Page)
25-Pair Cable
110-Type
Connector
Wiring
Pin
Pair Color
Block
Numbers
Terminals
26
1 W-BL
1
1
BL-W
2
27
2
W-O 3
2
O-W
4
28 3
W-G
5
3
G-W
6
29
4
W-BR
7
4 BR-W 8
30
5
W-S 9
5
S-W
10
31
6
R-BL
11
6 BL-R 12
32
7 R-O
13
7
O-R
14
33
8
R-G
15
8
G-R
16
34
9
R-BR
17
9 BR-R
18
35
10 R-S
19
10
S-R
20
36
11 BK-BL
21
11
BL-BK
22
37
12
BK-O
23
12
O-BK
24
3-4