4-2 Issue 9 October 1998
363-206-204
Powering, Verification, and Circuit Pack Installation
Tools, Test Sets, and Accessories
The following is required:
* The voltmeter must be capable of measuring DC voltage in the 40 to 60 volt
range. The use of the voltmeter is optional since the user panel will alarm or shut
down if the proper voltage is not supplied.
† A wrist strap must be worn when handling circuit packs. Use the electrostatic
discharge (ESD) jack provided on the user panel.
Powering and Verification
Shelf Power Description
The 48 V DC power feeders connect to the shelf’s user panel and, after fusing,
through the backplane to the circuit packs.
Procedure
1. Verify that the frame or structure into which the DDM-2000 OC-3 is
installed is properly grounded.
2. Verify that the DDM-2000 OC-3 is properly grounded to the frame or struc-
ture.
3. Verify that a 5 ampere fuse is installed in the DDM-2000 OC-3 user panel
for each feeder.
4. Disconnect the power cable from the backplane cable (P1 from J1 and P2
from J2).
5. If a single shelf is used, install a 10 ampere fuse in the battery distribution
fuse board (BDFB) that fuses the DDM-2000 OC-3. If a bay arrangement is
used install a 25 ampere fuse or circuit breaker in the BDFB.
6. If breakers are being used, verify that a 25 ampere breaker is being used if
in a bay arrangement or a 10 ampere breaker is being used if in a single
shelf.
7. If breakers are being used, put the breaker in the ON position.
Quantity
Description
1
Multimeter (Optional)*
1
Wrist Strap
†
1
personal computer (PC)
Summary of Contents for DDM-2000 OC-3
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Page 74: ...2 iv Issue 9 October 1998 363 206 204 ...
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 ...