Nortel Passport 15000, Hardware Installation And Maintenance, Page: 362 / 874

362 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Grounding a Passport 15000-VSS
Ground a Passport 15000-VSS to have both the Passport 15000 and the
Passport 7480 share the same ground window.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• Before grounding the Passport 15000-Variable Speed Switch (VSS) be
sure you have performed the steps in “Grounding the NEBS 2000 frame”
(page 368).
Procedure steps
1 At the rear of the on the Passport 7480, unfasten the 9-mm (11/32-in.) nut
on the grounding stud and put it aside temporarily. See the figure
“Passport 7480 shelf assembly grounding stud” (page 363).
2 At one end of the grounding cable (#6 AWG min.), crimp on a 1-hole lug
according to your local electrical code.
3 Place the 1-hole lug onto the grounding stud and fasten the nut back onto
it. Tighten to snug plus a 1/4 turn. Avoid stripping the nut or the stud.
4 Strip the sheath off the end of the cable to accommodate the lug barrel,
coat the strands in anti-oxidizing grease if your local electrical code allows
it, and crimp on an appropriately sized straight 2-hole lug.
5 Place the end of the cable with the 2-hole lug at the top of the NEBS 2000
frame against the silvery grounding strip. Avoid pinching or kinking the
cable. See the figure “Overhead power input cables for the lower shelf
connected to the BIP” (page 337).
6 Fasten the lug to the frame using 2 thread-forming 10-mm (3/8-in.) hex-
head screws.
Some dc-powered shelves have an extra lug on the right-hand side of the
terminal block labelled GND. Do not use this extra lug and leave it
unconnected.