AT&T 75 - Page 495

66-TYPE HARDWARE
Table 4-I 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.
TABLE 4-I. System Wiring
(Contd on Next Page)
25-Pair Cable
4-Pair Cable
Term Lead Functions
BR2580A
500*
7400
EIA
or
2500 Series
Term* D-Inside
258A D-Inside
Cable Adapter Cable
Info.
Term. 7100 7300 Att.
PDM
Color
Pin
Color
Outlet
No. Series Series
Cons.
TDM Code
Num. Code
Term.
1
T
V1T W-BL 26
W-BL
1
R
V1R
BL-W 1 BL-W
2
CT
TXT TXT W-O
27
W-O 3
CR TXR
TXR
O-W
2
O-W
4
P- PXT
PXT
W-G 28 W-G 5
P+ PXR
PXR
G-W 3 G-W 6
P- P-
W-BR 29
W-BR
7
P+ P+
BR-W
4 BR-W 8
2
T
V1T W-S
30
W-BL
1
R
V1R S-W 5
BL-W
2
CT
TXT
TXT
R-BL
31
W-O 3
CR TXR
TXR BL-R
6 O-W
4
P-
PXT
PXT
R-O 32 W-G 5
P+ PXR
PXR
O-R
7
G-W
6
P- P- R-G
33
W-BR
7
P+ P+
G-R
8 BR-W 8
3
T
V1T R-BR
34
W-BL
1
R
V1R BR-R 9 BL-W
2
CT
TXT
TXT
R-S 35
W-O
3
CR
TXR
TXR S-R
10
O-W
4
P- PXT
PXT
BK-BL
36
W-G
5
P+ PXR
PXR
BL-BK
11
G-W
6
P-
P-
BK-O 37
W-BR 7
P+ P+
O-BK
12
BR-W 8
* R1V2 or R1V3 Only
4-69