MAINTENANCE
Table 4-D.
25-Pair Connector to Backplane Designations
2 5 - P i n - C o n n .
C a l l
P r o c
Pin No.
W i r e
C o l o r
G S
T r u n k
Z T N 7 6
L S
T r u n k
Z T N 7 7
Tip Ring
L i n e
Z T N 7 8
A
T
L
L i n e
Z T N 7 9
M E T
L i n e
T N 7 3 5
B a c k p l a n e
P i n N o .
(Slots 1-12)
2 6
1
2 7
2
2 8
3
2 9
4
3 0
5
3 1
6
3 2
7
3 3
8
3 4
9
3 5
1 0
3 6
1 1
3 7
1 2
3 8
1 3
3 9
1 4
4 0
1 5
4 1
1 6
4 2
1 7
4 3
1 8
4 4
1 9
4 5
2 0
4 6
2 1
4 7
2 2
4 8
2 3
4 9
2 4
5 0
2 5
W-BL
BL-W
W - O
O - W
W - G
G - W
W-BR
BR-W
W - S
S - W
R-BL
BL-R
R - O
O - R
R - G
G - R
R-BR
BR-R
R - S
S - R
BK-BL
BL-BK
BK-O
O-BK
BK-G
G-BK
BK-BR
BR-BK
BK-S
S-BK
Y - B L
BL-Y
Y - O
O - Y
Y - G
G - Y
Y-BR
BR-Y
Y - S
S - Y
V - B L
BL-V
V - O
O - V
V - G
G - V
V-BR
BR-V
V - S
S - V
R D A
S G A
D C D A
D T R A
T D A
R D B
S G B
D C D B
D T R B
T D B
R D C
S G C
D C D C
D T R C
T D C
R D D
S G D
D C D D
D T R D
T D D
T 1 T 1 T 1
R 1 R 1 R 1
T 2 T 2 T 2
R 2 R 2 R 2
T 3 T 3 T 3
R 3 R 3 R 3
T 4 T 4 T 4
R 4 R 4 R 4
T 5 T 5 T 5
R 5 R 5 R 5
T
1
R
1
C T 1
C R 1
P - 1
P + 1
T
2
R
2
C T 2
C R 2
P - 2
P + 2
T
3
R
3
C T 3
C R 3
P - 3
P + 3
T
4
R
4
C T 4
C R 4
P - 4
P + 4
T
5
R
5
C T 5
C R 5
P - 5
P + 5
T
6
R
6
C T 6
C R 6
P - 6
P + 6
T
7
R
7
C T 7
C R 7
P - 7
P + 7
T
8
R
8
C T 8
C R 8
P - 8
P + 8
G N D
G N D
T
1
R
1
B T 1
B R 1
L T 1
LTR1
T
2
R
2
B T 2
B R 2
L T 2
LTR2
T
3
R
3
B T 3
B R 3
L T 3
LTR3
T
4
R
4
B T 4
B R 4
L T 4
LTR4
1 0 2
0 0 2
1 0 3
0 0 3
1 0 4
0 0 4
1 0 5
0 0 5
1 0 6
0 0 6
1 0 7
0 0 7
1 0 8
0 0 8
1 0 9
0 0 9
1 1 0
0 1 0
1 1 1
0 1 1
1 1 2
0 1 2
1 1 3
0 1 3
3 0 2
2 0 2
3 0 3
2 0 3
3 0 4
2 0 4
3 0 5
2 0 5
3 0 6
2 0 6
3 0 7
2007
3 0 8
2 0 8
3 0 9
2 0 9
3 1 0
2 1 0
3 1 1
2 1 1
3 1 2
2 1 2
3 1 3
2 1 3
3 0 0
2 0 0
T 6 T 6 T 6
R 6 R 6 R 6
T 7 T 7 T 7
R 7 R 7 R 7
ETU48
ETUGD
ETU48
ETUGD
ETU48
ETUGD
ETU48
ETUGD
T 8 T 8 T 8
R 8 R 8 R 8
G N D G N D G N D
GND GND GND
G N D
G N D
Note: TN747 is same as ZTN76 and ZTN77. TN762 is same as ZTN79.
4-78
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 ...