Installation Instructions

Adding a second/third PSM (–48 V or 220 V AC only) Chapter 3: Low -to -Mid Capacit y Fr ame Expansion Procedures

Procedure

Procedure 3 -6 contains the steps for adding a second/third PSM to the PSM shelf .

Procedure 3 -6 Adding a 2nd/3rd PSM to the PSM shelf

If a PSM is to be installed in PSM shelf slot 3, use a T25 TORX bit and driver

to completely loosen the captive retaining thumbscrew on the ﬁller plate that

covers slot 3 of the PSM shelf . Remove the ﬁller plate.

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 PSM into PSM shelf slot 2 and 3 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.

Using a T25 TORX bit and torque driver , tighten the captive retaining

thumbscrew to 2.37 N-m (21 in-lb).

3 -20 68P09283A62 -2

PRELIMINARY A UG 2007