Artesyn AXP640, Installation And Use Manual, Page: 153 / 190

FRU Installation
AXP640 Installation and Use (6806800M24F)
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6. Grasp the handle on the module faceplate and remove the module from the shelf.
Apply steady pressure but do not force the module. If the SAM does not move, it
means the captive screw is not fully unscrewed. Unscrew until loose, and proceed
to remove the SAM.
6.3 Unused Slots
All unused node or hub slots must be covered with filler blades. These filler blades ensure a
consistent airflow per slot whether or not the neighboring slot contains an AdvancedTCA
blade. There are filler blades sized for the front and for the RTM slots. When fillers are used, both
the front and RTM filler must be in place. Filler blades are available from Artesyn Embedded
Technologies.
All unused power bay slots should similarly be filled with slot fillers when not in use. Additional
power bay slot fillers are available from Artesyn.
6.4 Installing Power Entry Modules
The AXP640 shelf supports two Power Entry Modules (PEMs). Since the shelf is equipped with
a redundant power distribution system, the removal of a single PEM does not interrupt system
operation. PEMs are accessible from the rear of the shelf. Each PEM has EMI gaskets on all sides
of the module that provide EMI shielding.
The following instructions describe how to replace a power entry module. For further
information on power entry modules, refer to
Power Entry Modules (PEMs) on page 64 .
6.4.1 Tool You Will Need

Standard #2 Phillips-head screwdriver
6.4.2 Removing the PEM
When replacing a PEM, make sure you have a replacement PEM available. PEMs are accessible
from the front of the shelf, and does not require removal of the shelf power wiring.