Appendix B: Field-Replaceable Units
7705 SAR-8 Installation Guide Page 139
Tools required:
• torque driver for Phillips screws
To replace a CSM:
Step 1. Remove the old CSM from the chassis.
Step 2. Remove the new CSM from the packaging. Do not touch the printed circuit board or
connector pins.
Step 3. Install the replacement CSM. With the ejector levers rotated inward, hold the CSM
by the levers, align the card with the slot guides and slide the card into the slot until
the connectors are seated in the backplane and the faceplate is flush with the front of
the chassis.
Step 4. Secure the card in place by tightening the captive screws. Do not over-tighten. The
recommended torque is 4-6 lbf-in.
Warning: Do not force a CSM into its slot if its connector pins do not mate
smoothly with the backplane connectors. The card may not be seated
properly and the pins can get damaged. Pull the card half way out and then
reinsert it.
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