SMART Embedded Computing 6806800V18A, Installation And Use Manual

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132 AXP1440-C07 Installation and Use (6806800V18A)
FRU Installation
FRU Installation
5. 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.
6. 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.
7. To remove the cover, press 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
NOTE: Confirm that there is no power to the PEM lug bolts. Using a multimeter, measure
between the two lugs and then measure between the shelf ground and each lug. If
the DC potential is 3.0VDC or less, then power is not present.
8. Remove the DC power cables from the dual lug bolts on the PEM you are replacing.
NOTE: Be careful to place the two cables so they cannot short to each other or to other
conductors.
9. Using the appropriate tool, loosen the shelf retention screws on each side of the PEM.
10. Open the ejector handles completely. The PEM disconnects from the backplane.
11. Pull the module straight out from the rail guides.
6.5.3 Procedure - Install a 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.
3. Using the appropriate tool, tighten the shelf retention screws on each side of the PEM.
4. 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.