Nortel Passport 15000, Hardware Installation And Maintenance, Page: 125 / 874

Chapter 9 NEBS 2000 frame accessories 125
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Door hardware removal from a NEBS 2000 frame
Remove door hardware from a NEBS 2000 frame to provide uncontrolled
access to the switch hardware, or to re-deploy the hardware on another frame.
• “Prerequisites to door hardware removal from a NEBS 2000 frame”
(page 125)
• “Door hardware removal from a NEBS 2000 frame task flow” (page 128)
Prerequisites to door hardware removal from a NEBS 2000
frame
• You need the key for the door lock (originally from kit NTQS37).
• Power down switch hardware equipment only as directed by your
company’s policy when doing hardware maintenance tasks around live
equipment.
• Since a shelf (frame) filler panel encloses the upper half of a NEBS 2000
frame and is used independently of frame doors, it is not included here as
enclosure hardware. Replace a frame filler panel by doing the procedures
“Removing a shelf filler panel” (page 721) and “Installing a shelf filler
panel” (page 509).
• You need these tools:
— a step ladder to access the top of the 212.5 cm (7-ft.) NEBS 2000
frame
— a driver to fasten the very large slotted captive screws of the cover as
shown in the figure “Types of screws used with frame enclosure
hardware” (page 120)
— if a frame ground cable needs to be disconnected, a driver for the
very large slotted pan-head screws P0883403 as shown in the figure
“Types of screws used with frame enclosure hardware” (page 120)
and a 10-cm (4-in.) shaft to reach through the bracket to the cable lug
— a driver for a 10-mm (3/8-in.) thread-forming hex-head mounting
screws P0601478 as shown in the figure “Types of screws used with
frame enclosure hardware” (page 120) with a 10-cm (4-in.) reach
past the front of the bracket to the frame uprights as shown in the
figure “Locations of installed brandline covers and top frame
brackets” (page 571)