Lucent Technologies DDM-2000 OC-3, Руководство по установке

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2-6 Issue 9 October 1998
363-206-204
Equipment and Rear Access Cable Installation
2. Remove the front, rear, and DS1 cable chamber covers from the
DDM-2000 OC-3 shelf.
NOTE
:
The covers must be installed later to assure compliance with electromag-
netic induction requirements. Also to ensure proper cooling when used with
a fan shelf.
3. Inspect the DDM-2000 OC-3 shelf for visible damage, including bent or
touching backplane pins.
4. Determine the type of bay frame the DDM-2000 OC-3 shelf will mount in.
The DDM-2000 OC-3 shelf side mounting brackets may have to be moved,
according to bay type. Position them accordingly, refer to Figure 2-7.
NOTE
:
To assure that the shelf is grounded through the bay frame, the mounting
brackets must be positioned so that the head of the mounting screw makes
contact with the unpainted surface of the bracket.
5. Position the side mounting brackets of the DDM-2000 OC-3 heat baffle
and/or fan shelf (if provided) accordingly. Refer to Figure 2-7.
Equipment Installation
Description
This procedure describes how to install equipment that will be accessible from
both the front and rear.
Procedure
1. Mount the DDM-2000 OC-3 shelves and heat baffles in a network bay
frame with the wide flange of the bay frame to the front as shown in Figure
2-5. Position the shelves and heat baffles in the bay frame as shown in Fig-
ure 2-6 and Figure 2-7. Use the thread-cutting screws provided in the
installation kits to mount the shelves to ensure a good ground connection
from the bay to the shelf.
2. Install the fan shelves (if required). Refer to "Fan Shelf Installation - Rear
Access".
3. Verify with an ohmmeter that the DDM-2000 OC-3 is grounded to the bay
frame.
4. Install the required shelf brackets as shown in Figure 2-5.