Artesyn AXP1440, Installation And Use Manual, Page: 123 / 156

FRU Installation
AXP1440 Installation and Use (6806800H23U) 121
3. Lock and tag out the circuit breakers on the branch circuit or power distribution unit.
4. Open the ejector latches. This signals the switch to deactivate the hot swap signal.
Watch for the blue LED to go solid and steady, signaling that it is ready to remove.
5. 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.
— Remove the cover, by pressing the upper wall of the terminal block wall downward
and slip a flat-bladed screwdriver between the cover and the terminal block wall.
— Pry the cover tab up to relieve it from the embossment in the terminal block wall.
Once the upper cover tab is free from the terminal block embossment, the cover
should rotate downward and free itself from the lower embossment.
6. Confirm that there is no power to the PEM lug bolts. Using a multimeter, measure
between the two lugs and then measure between the chassis ground and each lug. If
the DC potential is 3.0 VDC or less, then power is not present.
7. Remove the DC power cables from the dual lug bolts on the PEM you are replacing,
being careful to place the two cables so they cannot short to each other or to other
conductors. Using the appropriate tool, loosen the chassis retention screws on each
side of the PEM.
8. Open the ejector handles completely. You will see the PEM disconnect from the
backplane.
9. Pull the module straight out from the rail guides.
Procedure - Install the PEM
To install a PEM, follow these steps:
1. Make sure that the PEM breakers are in the off position.
2. Insert the new PEM, closing the ejector handles.
If the multimeter indicates there is still power present and power cannot be removed
from the terminals, the entire shelf must be powered down to perform the PEM
replacement.