AT&T 75 Wiring Manual page 322

110-TYPE HARDWARE
Table 3-L provides detailed wiring information for the 25-pair cables, the adapters, and the
information outlets.
Note: Bridged taps must not be used on any part of the station wiring.
Term Lead Functions
500*
2500
7100 7300
Term.
Series
No. Series
V1T
T
1
R V1R
P-
P +
2 T V1T
V1R
R
P-
P +
T V1T
3
V1R
R
P-
P +
* R1V2 or R1V3 Only
3-106
TABLE 3-L. System Wiring
(Contd on Next Page)
25-Pair Cable
7400 EIA
Term*
Series
Att. PDM
Cons. TDM
CT TXT TXT
CR TXR TXR
P- PXT PXT
P + PXR PXR
P-
P +
CT TXT TXT
TXR
CR TXR
P- PXT PXT
P+ PXR PXR
P-
P +
TXT TXT
CT
TXR TXR
CR
PXT
P- PXT
P+ PXR PXR
P-
P +
BR2580A
or
258A
D-Inside
Adapter
Cable
Color Pin
Code Num.
W-BL 26
BL-W 1
27
W-O
O-W 2
28
W-G
3
G-W
W-BR 29
4
BR-W
30
W-S
5
S-W
31
R-BL
BL-R 6
R-O 32
7
O-R
33
R-G
8
G-R
R-BR 34
BR-R 9
35
R-S
10
S-R
36
BK-BL
11
BL-BK
BK-O 37
12
O-BK
4-Pair Cable
D-Inside
Cable Info.
Color Outlet
Code Term.
W-BL 1
2
BL-W
W-O
3
4
O-W
W-G
5
G-W 6
W-BR 7
BR-W 8
W-BL 1
BL-W 2
W-O 3
4
O-W
W-G 5
6
G-W
7
W-BR
BR-W 8
W-BL 1
2
BL-W
W-O
3
O-W 4
W-G 5
G-W
6
W-BR 7
BR-W 8