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APPENDIX A: System Wiring Tables
Table A-A.
25-Pair Connector Pin Assignments (Contd)
25-Pin
Conn.
DlD
Tie
Aux. Data
Analog
Analog TN767
Backplane
Pin No. ‘
Wire
Trunk
Trunk
Trunk
Line Line Line
DS1 Pin No.
Color
3
TN760B
TN763_
TN726TM742TN746BInterface
(Slots 1-12)
.
26
W-BL
T1
T1
T-O
T1
T1
102
1
BL-W
RI
RI
R-O
RI
R1
27
w-o
T11
SZ-O
TXT1
T2
103
2
o-w
R11
SZ1-0
TXR 1
R2
003
28
W-G
El s-o
PXT1
T3
104
3
G-W
Ml
S1-0
PXR1
R3 004
29
W-BR
T2 T2
T-1
T2
T4
105
4
BR-W
R2
R2
R-1 R2 R4
005
30
w-s
T12 SZ-2
TXT2
106
5
s-w
R12 SZ1-2
TXR2 006
31
R-BL
E2
s-1
PXT2
107
6
BL-R
M2
S1-1
PXR2
007
32
R-O
T3
T3
T-2
T3
108
7
O-R R3
R3
R -2
R3
008
33
R-G
T13
SZ-2
TXT3
109
8
G-R
R13
Sz 1-2
TXR3
009
34
R-BR
E3
s-2
PXT3 T5
110
9 BR-R M3
S1-2
PXR3
R5
010
35
R-S
T4
T4
T-3
T4
T6
111
10
S-R
R4
R4
R -3
R4
R6
011
36
BK-BL
T14
SZ-3
TXT4
-I-7
112
11
BL-BK
R14
SZ1-3 TXR4
R7
012
37 BK-O E4
s-3
PXT4 T8
113
12
O-BK
M4
S1-3
PXR4
R8
013
38 BK-G
T5
T5
T9
302
13
G-BK
R5
R5
R9 202
39 BK-BR
TXT5 TIO
303
14
BR-BK
TXR5
R1O
203
40 BK-S
PXT5
T11
304
15
S-BK
PXR5
Rll
204
41
Y-BL T6
T6
T12
305
16
BL-Y
R6
R6
R12 205
42
Y-o
TXT6
306
17
o-Y
TXR6
206
43
Y-G
PXT6
307
18
G-Y
PXR6
207
44 Y-BR
T7
T7
308
19
BR-Y
R7
R7
208
45
Y-s
TXT7
309
20
s-Y
TXR 7
209
46
V-BL
PXT7
T13 310
21
BL-V
PXR7 R13
210
47
v-o
T8
T8
T14
L1*
311
22
o-v
R8
R8
R14
L1
211
48
V-G
TXT8 T15
LO
312
23
G-V
TXR8
R15
LO”
212
49 V-BR
PXT8 T16 LBACK 2
313
24
BR-V PXR8 R16
LBACK 1
213
50
v-s
GND GND GND
GND
GND
GND
300
25
s-v
GND
GND
GND GND
GND
GND 200
*Denotes high side or ringside of pair
A-3