Instruction manual

Replacing a Module
2-48
Installation, SPM, Maintenance, and Troubleshooting Supplement
CAUTION:
Follow these steps in the exact sequence.
a. Turn off the power supply on the basic carrier.
b. Turn off the power supplies on the expansion carriers.
c. Unplug the system from the AC outlet.
3. Remove the module from the carrier. Follow these steps:
a. Using a screwdriver, pry the tab at the bottom front of the module.
b. While prying the tab, pull the top handle on the module towards you
and away from the carrier.
4. Inspect the module for visible damage.
5. Insert the new module (see Figure 2-11).
6. Restore the module. Refer to Chapter 7, “Initializing and Testing the
System,” in the MERLIN LEGEND Communications System Release 6.1
Installation manual for instructions.
7. Connect the trunk and extension cords.
8. Attach a tag, error printout, and any information that will help identify any
visible problems or failure symptoms.