APPENDIX A: System Wiring Tables
Table A-A.
25-Pair Connector Pin Assignments
25-Pin Corm.
C a l l
G S
L S
Tlp Ring
ATL
MET
Backplane
Pin No.
W i r e
Proc.
Trunk
Trunk
Line
Line
Line
Pin No.
Color Z T N 8 2
N76 ZTN77
Z T N 7 8
ZTN79
TN735 (Slots 1-12)
.
26
W-BL
RDA
T1
T1
T1
T1
T1
102
1
BL-W
SGA
RI
RI
RI
R1
R1
002
27
w - o
CT1
BTI
103
2
o - w
DCDA
CR1
BR1
003
28
W-G
DTRA
P-1
LT 1
104
3
G-W
TDA
P+l
LTR 1
004
29
W-BR
RDB
T2
T2
T2
T2
T2
105
4
BR-W
SGB
R2
R2
R2
R2
R2
005
30
w-s
CT2
BT2
106
5
s - w
DCDB
CR2
BR2
006
31
R-BL
DTRB
P-2
LT2
107
6
BL-R
TDB
P+2
LTR2
007
32
R-O
RDC
T3
T3
T3
T3
T3
108
7
O-R
SGC
R3
R3
R3
R3
R3
008
33
R-G
CT3
BT3
109
8
G-R
DCDC
CR3
BR3
009
34
R-BR
DTRC
P-3
LT3
110
9
BR-R
TDC
P+3
LTR3
010
35
R-S
RDD
T4
T4
T4
T4
T4
111
10
S-R
SGD
R4
R4
R4
R4
R4
011
36
BK-BL
CT4
BT4
112
11
BL-BK
DCDD
CR4
BR4
012
37
BK-O
DTRD
P-4
LT4
113
12
O-BK
TDD
P+4
LTR4
013
38
BK-G
T5
T5
T5
T5
302
13
G-BK
R5
R5
R5
R5
202
39
BK-BR
CT5
303
14
BR-BK
CR5
203
40
BK-S
P-5
3(M
15
S-BK
P+5
204
41
Y-BL
T6
T6
T6
T6
305
16
BL-Y
R6
R6
R6
R6
205
42
Y-o
CT6
306
17
o-Y
CR6
206
43
Y-G
P-6
307
18
G-Y
P+6
207
44
Y-BR
T7
T7
T7
T7
308
19
BR-Y
R7
R7
R7
R?
208
45
Y-s
ETU48
CT7
309
20
s-Y
ETUGD
CR7
209
46
V-BL
ETU48
P-7
310
21
BL-V
ETUGD
P+7
210
47
v-o
T8
T8
T8
T8
311
22
o-v
R8
R8
R8
R8
211
48
V-G
ETU48
CT8
312
23
G-V
ETUGD
CR8
212
49
V-BR
ETU48
P-8
313
24
BR-V
ETUGD
P+8
213
50
v-s
GND
GND
GND
GND
GND
300
25
s-v
GND
GND
GND
GND
GND
200
Note: TN747 is same as ZTN76 and ZTN77. TN762 is same as ZTN79.
A-2
Summary of Contents for Network Adapter 25
Page 1: ...AT T AT T System 25 Installation and Maintenance Manual 555 540 103 B November 1995 ...
Page 18: ...APPENDIX F Administration Error Messages GLOSSARY I N D E X F 1 G 1 I 1 viii ...
Page 31: ...INSTALLATION MOUNTING CENTERS WHEN FLANGES ARE OVERLAPPED Figure 2 2 617A Panel 2 7 ...
Page 33: ...INSTALLATION Z21OA1 ADAPTER Y ADAPTER WP90851 L1 858A ADAPTER Figure 2 3 SIP Adapters 2 9 ...
Page 50: ...INSTALLATION Figure 2 10 Three Cabinet System Front View With Covers Removed 2 26 ...
Page 51: ...INSTALLATION Figure 2 11 Position of Shorting Plugs on CPU Memory Circuit Pack 2 27 ...
Page 72: ...INSTALLATION UPPER ADAPTER MOUNTING CLIP Figure 2 18 Mounting Adapters ...
Page 85: ...INSTALLATION 2 61 ...
Page 92: ...INSTALLATION 2 68 ...
Page 103: ...INSTALLATION Figure 2 32 10B Emergency Transfer Unit 2 78 ...
Page 104: ...INSTALLATION Figure 2 33 Emergency Transfer Unit Connections 2 79 ...
Page 109: ...INSTALLATION Figure 2 35 Attendant Console With DXS Console 2 84 ...
Page 146: ...INSTALLATION 2 119b This page intentionally left blank November 1995 ...
Page 153: ...INSTALLATION This page intentionally left blank 2 124b November 1995 ...
Page 223: ...MAINTENANCE Figure 4 2 Clearing Supply Troubles Sheet 1 of 2 4 47 ...
Page 224: ...MAINTENANCE Figure 4 2 Clearing Power Supply Troubles Sheet 2 of 2 ...
Page 225: ...MAINTENANCE Figure 4 3 Clearing CO Trunk Troubles 4 49 ...
Page 226: ...MAINTENANCE Figure 4 4 Clearing 4 Wire Tie Trunk Troubles Sheet 1 of 4 4 50 ...
Page 227: ...MAINTENANCE Figure 4 4 Clearing 4 Wire Tie Trunk Troubles Sheet 2 of 4 4 51 ...
Page 228: ...MAINTENANCE Figure 4 4 Clearing 4 Wire Tie Trunk Troubles Sheet 3 of 4 4 52 ...
Page 229: ...MAINTENANCE Figure 4 4 Clearing 4 Wire Tie Trunk Troubles Sheet 4 of 4 4 53 ...
Page 231: ...Figure 4 6 Clearing Tie Trunk Troubles Sheet 1 of 5 4 55 ...
Page 232: ...MAINTENANCE 6 7 8 9 10 Figure 4 6 Clearing Tie Trunk Troubles Sheet 2 of 5 4 56 ...
Page 233: ...MAINTENANCE Figure 4 6 Clearing Tie Trunk Troubles Sheet 3 of 5 4 57 ...
Page 234: ...MAINTENANCE Figure 4 6 Clearing Tie Trunk Troubles Sheet 4 of 5 4 58 ...
Page 235: ...MAINTENANCE Figure 4 6 Clearing Tie Trunk Troubles Sheet 5 of 5 4 59 ...
Page 236: ...MAINTENANCE Figure 4 7 Clearing Paging Equipment Troubles ...
Page 250: ...MAINTENANCE Figure 4 9 System Cabinet Backplane Wiring Side Sheet 2 of 2 4 74 ...
Page 251: ...MAINTENANCE Figure 4 10 TDM Signal Designations on Cabinet Backplane 4 75 ...
Page 252: ...MAINTENANCE Figure 4 11 Power Designations on Cabinet Backplane 4 76 ...
Page 263: ...MAINTENANCE Figure 4 12 Clearing Virtual Facilities Troubles Sheet 1 of 3 ...
Page 264: ...MAINTENANCE Figure 4 12 Clearing Virtual Facilities Troubles Sheet 2 of 3 4 87 ...
Page 265: ...MAINTENANCE Figure 4 12 Clearing Virtual Facilities Troubles Sheet 3 of 3 4 88 ...
Page 271: ...MAINTENANCE Figure 4 13 Clearing Switched Loop Attendant Console Troubles Sheet 1 of 5 ...
Page 272: ...MAINTENANCE 4 13 Clearing Switched Loop 2 of 5 Console Troubles Sheet 4 95 ...
Page 273: ...MAINTENANCE Figure 4 13 Clearing Switched 3 of 5 Loop Attendant Console Troubles Sheet 4 96 ...
Page 274: ...MAINTENANCE 4 13 Clearing Switched 4 of 5 Console Troubles 4 97 ...
Page 321: ...APPENDIX E Administration Codes and Data This page is intentionally blank E 2 b ...