3. Turn off power and unplug the AC cables as follows:
If the blown fuse is located in the top fuse array, turn off power and unplug the AC
power cables from Slot 1 and Slot 2.
If the blown fuse is located in the bottom fuse array, turn off power and unplug the
AC power cables from Slot 3 and Slot 4.
4. Follow the steps in “Replacing the BTI7814 AC PEM” on page 182 and remove the AC
PEM that is in front of the fuse array to which you need to gain access.
5. Using needle-nose pliers, extract the fuse you want to replace and discard
appropriately.
6. Using needle-nose pliers, insert the replacement fuse (of the same rating) into the
empty socket.
7. Follow the steps in “Replacing the BTI7814 AC PEM” on page 182 and reinstall the AC
PEM and housing cover.
8. Plug the AC cables back and switch on the power to all the PEMs.
The AC OK LED turns solid green on all the PEMs.
You have successfully completed this procedure.
Copyright © 2019, Juniper Networks, Inc.186
BTI7800 Series Hardware Overview and Installation Guide
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