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3U
2U
1U
0U
Figure 12. Rear rack mounting template
Before installing the EXP420 in a rack, you must install the rails and rack-mounting
hardware that come with your storage expansion enclosure. The EXP420 requires
an Electronic Industries Association (EIA) 310-D Type A 19-inch rack cabinet. The
distance between EIA rails, from the front to the rear of the rack, is 60.96 cm (24
in.) minimum and 81.28 cm (32 in.) maximum. This rack conforms to the EIA
standard. Where you place the support rails in the rack depends on where you
intend to position the storage expansion enclosure.
Complete the following steps to install the support rails:
Note: Refer to Figure 13 on page 26 while performing these steps.
24
IBM System Storage DS4000 EXP420 Storage Expansion Enclosure: Installation, User's and Maintenance Guide
Rail assembly
(Rear Left)
1. Ensure that the rack has already been installed.
2. Ensure that a stabilizer has been correctly attached to the bottom front of the
rack to prevent the rack from tipping forward while the EXP420 is being
installed.
Refer to the installation and service guide, or equivalent, for the rack as
required.
3. Locate the two support rails, eight of the twelve M5 screws, and eight washers
that are supplied with the EXP420.
EXP420
REAR
Rack Mounting
Template
Rail mounting guide
Rail assembly
(Rear right)
®
Printed in the U.S.A
3U
2U
1U
0U
exp42007
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