Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 561 / 874

Chapter 17 Hardware procedures 561
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Installing a top cover onto a frame bracket
Install a top cover onto a NEBS 2000 frame bracket at the front or rear of a
frame as part of enclosing the frame and identifying the series and brand of
equipment.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• You need kit number:
— NTPN51 for the plain top cover kit
— NTPN52 or NTPN53 for the top cover with the shelf status LED that
is required when using door kit NTQS37AB
• You need these tools:
— a step ladder to access the top of the 212.5 cm (7-ft.) NEBS 2000
frame
— a screwdriver with a very large slotted bit to fasten the captive screws
of the cover
— a flashlight to see the connections at the rear of the BIP
• The bracket to which a top cover is fastened must already be mounted as
indicated by the procedure “Installing a top frame bracket onto a NEBS
2000 frame” (page 568).
Procedure steps
1 Fasten a top cover mounting bracket at each end of the top cover frame
bracket (P0876758) as shown in the figure “Top cover and mounting
brackets without door hardware” (page 563). Use two 10-mm (3/8-in.) hex
screws on each bracket.
When upper door hardware is to be installed, combine fastening the door
hardware to the same mounting bracket as shown in the figures:
• “Top cover and mounting brackets with door catch” (page 564)
• “Top cover and mounting brackets with door hinge” (page 565)