7. On both left and right rail assemblies, install a single long screw between the rail
posts in the center screw hole to secure the rails as follows:
Figure 64 Securing a rail with a single screw
a. If the rails are being installed in a rack that has threaded holes, insert an M4
screw into the smaller of the two center screw holes at both the front and
the rear of the rail. The screw is smaller and will pass through the threaded
hole in the NEMA racks.
b. If the rails are being installed in a rack that does not have threaded holes,
insert an M5 screw that comes with the chassis into the larger of the two
center screw holes in the rail at the front and rear of the rack.
Table 13
List of parts used in illustration, location of securing screws and alignment pins
Image # Description Qty Part number
1 Node rail location in 4U
space
n/a n/a
2 Node rail square alignment
pins
n/a Part of PN 100-569-209
4 M5 or M4 securing screws 4 PN 106-002-452 or
036-028-018
Shelf Installation and Removal
70 EMC Data Domain DS60 Expansion Shelf Installation and FRU Replacement Hardware Guide
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