Installation Instructions

R20 1X UBS Macro B T S Hardw are Installation T ask 4: R ack Mounting the Optional PSM Shelf
Procedure 2 -3 Procedure for T ask 4 (Continued)
• 136 mm (5.35 inches) for PSM shelf
3
P artially insert an M5 x 12 mm screw into each location marked on the rack.
Leave the screw heads extending 7 mm out from the rack surface.
4
Remove the PSM shelf from its packaging.
5
Align the keyhole slots in the PSM shelf with the bottom screws, installed in
step 3 above (Refer to Figure 2-14 ).
6
Insert screws in the 6 open slots of the PSM shelf . Using TORX T25 driver ,
tighten all 8 PSM shelf screws to 4.77 N-m (42 in-lb).
7
PSM weighs appro ximately 5 kg. Be careful when handling the
PSM to prev ent damage to the equipment and personal injury .
Install the appropriate PSMs into PSM shelf slots 1 and 2 as follows:
1. Grasp the handle on the front panel of the PSM with one hand while
carefully supporting the bottom of the module with the other hand.
2. Properly orient the PSM and insert it into the slot.
3. Slowly slide the module into the shelf until the rear connectors are
fully seated. Make sure that the PSM is fully engaged with the shelf
backplane slot connectors.
8
Using a T25 TORX bit and torque driver , tighten the PSM captive retaining
thumbscrew to 2.37 N-m (21 in-lb).
68P09283A62 -3 2 -33
PRELIMINARY A UG 2007