AXP1620 Installation and Use (6806800E23E
)
FRU Installation
Removing the PEM
112
Removal Procedure
To remove a PEM, refer to this figure and follow the steps.
1.
Locate the target power input cable’s terminals at the branch circuit or power
distribution unit. Open the external circuit breakers that provide DC feed power to
the PEM you are replacing.
2.
Lock and tagout the circuit breakers on the branch circuit or power distribution unit.
3.
Using the appropriate tool, loosen the chassis retention screws on each side of the
PEM.
4.
Open the ejector latches. This will signal the switch to deactivate the hot swap
signal. Watch for the Blue LED to go solid and steady, signalling that it is ready to
remove.
5.
Open the ejector handles completely. You will feel the PEM disconnect from the
backplane.
6.
Pull the module straight out from the rail guides, about 3 inches.
7.
With the PEM in place and before removing the terminal block lug cover, screw a
standoff/lockout screw extension onto the retaining screws located on each side of
the PEM. Align the threaded end of the standoff/lockout screw extension with the
screw holes on each side of the shelf and securely tighten to lock the PEM
approximately 2 inches out of the shelf.
8.
Using the appropriate tool, carefully remove the terminal block cover (plastic
covering) over the terminal block. The terminal block cover is attached to the
terminal block by two tabs with slots in the cover that insert into embossments in the
terminal block wall. To remove the cover, press the upper wall of the terminal block
OFF
ON
OFF
ON
-48 VDC RTN
-48 VDC
-48 VDC RTN
-48 VDC
IS
HS
OOS
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