User Manual

Appendix B l
Replacing a Radio module
B-2 910136 Rev01.00 Standard July 2007
Figure B-1. Radio module replacement
Replacement procedure
1. Disconnect all RF sector cables.
2. Use the #1 phillips-head screwdriver to fully loosen the captive screws on both sides of
the radio module (see Figure B-1).
3. Pinch the locking latches (Figure B-2) at the left and right sides of the module with your
thumbs and forefingers. Pull both latches out to pop the module away from the RN shelf
backplane.
4. Carefully slide the module out and put it aside.
5. Remove the new radio module from its protective electrostatic bag and verify that the pins
located on the rear of the module are straight and have not been damaged in shipping.
6. Insert the radio module in the RN shelf slot and push in until the locking latches meet the
frame.
7. Pinch the locking latches with your thumbs and forefingers so that you can engage the
latches with the frame. Push both latches in until the connector engages the backplane and
the locking latches close securely.
8. Use a phillips head screwdriver to engage and tighten the captive screws on both sides to
hold the radio module in place.
9. Re-attach the RF sector cables.
10. Use the torque wrench to tighten each connector to 1 N-m (9 in-lbs)
11. Follow the procedure RMA process on page B-7 to return the failed module to the Airvana
factory for repair or replacement.
Captive screws
Captive screws
Locking latch
Locking latch