2-66 Issue 9 October 1998
363-206-204
Equipment and Rear Access Cable Installation
Notes
:
1. The output common must be wired to an external ground for miscellaneous
(environmental) outputs #1-14.
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 2-16. Central Office Terminal Miscellaneous (Environmental) Discrete
Functions (Releases 6 and 7).
Env. Input #3
Env. Input #2
Env. Input #1
Env. Conrol
Env. Alarm/Status
Site
Site
6
Inputs to RT
Outputs from RT
J61
#14
4
External Minor Alarm
#2
#3
#1
11
13
Env. Input #4
Input Common
21
22
24
19
15
17
9
DDM-2000 Shelf
Output Common
Содержание DDM-2000 OC-3
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