Nortel Passport 15000, Hardware Installation And Maintenance, Page: 666 / 874

666 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Removing a brandline cover, illuminated, from a top frame
bracket
Remove a top cover from a NEBS 2000 frame bracket at the front or rear of
a frame to upgrade it as part of enclosing the frame with doors or to re-deploy
the enclosure hardware.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• 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 unfasten the captive
screws of the cover
— for a top cover NTPN52 or NTPN53 with a LED, a flashlight to see
the power connection at the rear of the BIP
Procedure steps
1 With an NTPN52 or NTPN53, at the rear of the BIP disconnect the cable
NTHW66 at J2.
2 Route the cable to the other side of the frame and let it hang freely over
the front of the top cover. Refer to the figures
• “Paths of the LED cable NTHW66 to the front and rear of a NEBS
2000 frame” (page 667)
• “Path of the LED cable NTHW66 passing through the bottom of the
top frame bracket” (page 668)
3 While holding the top cover, unfasten the 2 captive screws that are shown
in the figure “Top cover and mounting brackets” (page 669).
4 When the cover has the NTHW66, ravel the cable gently around the cover
for storage until it is redeployed.