Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 610 / 874

610 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Installing front adapter brackets
Install the front adapter brackets onto a 23-inch wide EIA rack to mount a
21-inch wide Passport 15000 or 20000.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• The front adapter brackets for mounting a shelf onto a 23-inch wide rack
are included in switch hardware packages NTQS04 for a Passport 15000
or NTQH04 for a Passport 20000. To install front adapter brackets, you
need these parts:
— the left front (long) adapter bracket (part number P0918821)
— the right front (long) adapter bracket (part number P0918822)
— the thread-forming 10-mm (3/8-in.) hex-head screws in a pack
labelled P097F814
• Hex head screws (from P097F814) remaining at the end of this procedure
are needed for the rear adapter brackets.
Procedures steps
1 Hold the right bracket so that:
• the center-hole at one end is at the top
• the edge with the paired holes that are covered on one side by a strip
of silvery grounding tape points away from you
2 At the front of the rack, position the edge with the paired holes against the
front face of the right upright. (The left bracket is for the left upright.)
3 Align the bottom hole of the bracket with the bottom hole on the rack
upright. Slide the bracket up to the next hole and loosely fasten a thread-
forming 10-mm (3/8-in.) hex-head screw through it.
4 Align the top hole of the bracket with the top hole on the rack upright.
Loosely fasten a screw through the hole.
5 At equal lengths apart from the top and bottom screws, loosely fasten 2
more screws.
6 Tighten all 4 screws to snug plus a 1/4 turn.