363-206-204
Equipment and Rear Access Cable Installation
Issue 9 October 1998 2-67
Notes
:
1. The output common must be wired to an external ground for miscellaneous
(environmental) outputs #1-10.
2. Miscellaneous (environmental) alarm input #14 (terminal 6 on J62) is typically
wired to DDM-2000 OC-3 fan shelf in non-NEBS environment (noncabinet where
air inlet temperature exceeds 50 degrees Celsius) applications where the fan shelf
is required.
Figure 2-17. Miscellaneous (Environmental) Discrete Functions (Releases 8, 9,
11 and 13).
1
2
3
4
5
6
7
8
9
15
16
21
1
2
3
4
1
2
3
4
5
6
7
8
9
#2
#3
#4
#1
10
External Minor
Parallel Telemetry
Alarm/Status Points
TBOS or TL1/X.25
Misc. Control Inputs
Misc. Alarm/Status Outputs
From
Discrete
Telemetry
Equipment
From
DDM-2000
Fan Shelf
Fan Shelf
Alarm
Common
Central Office
Remote Terminal
Misc. Alarm/Status Inputs
Input Common
-48V External Minor
-48V Power Minor
Fan Control Output
Fan Unit
(cabinet)
Misc. Control Outputs
Output
Common
Summary of Contents for DDM-2000 OC-3
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Page 144: ...2 70 Issue 9 October 1998 363 206 204 Equipment and Rear Access Cable Installation ...
Page 192: ...3 46 Issue 9 October 1998 363 206 204 Equipment and Front Access Cable Installation ...
Page 304: ...6 30 Issue 9 October 1998 363 206 204 Release 7 Installation Tests ...
Page 330: ...7 24 Issue 9 October 1998 363 206 204 Release 8 Installation Tests ...
Page 398: ...9 32 Issue 9 October 1998 363 206 204 Release 13 TARP Installation Tests ...
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Page 492: ...IN 14 Issue 9 October 1998 ...