4. Disconnect all fibers from the module.
NOTE: Ensure that the fibers are protected with protective caps while
disconnected.
5. Loosen the two faceplate thumbscrews located at each end of the module. They
should spring out freely when fully loosened. Use a screwdriver if necessary.
6. Unseat the module from the backplane by simultaneously opening both latches. See
“UFM Latches” on page 116.
a. For latches with the extendable black handle, extend the black handle and use it
as a lever to move the latch to the open position.
b. For latches with the J-handle, pull on the J-handle to move the latch to the open
position.
7. Gently slide the module out of its slot and place it in the antistatic bag.
Handle the module by its edges and faceplate.
8. If the slot is to remain unoccupied, install a filler panel.
You have successfully completed this procedure.
Replacing a UFM4 with a UFM3
Use this procedure to replace a UFM4 with a UFM3.
Prerequisites:
•
The UFMs must be similarly equipped. See the BTI7800 Series Software Configuration
Guide for the qualifying criteria.
This procedure describes a very specific type of UFM replacement where a UFM with an
integrated 100G Coherent MSA XCVR is replaced by a UFM with a 1x CFP BIC and a 100G
Coherent CFP. To facilitate this common use case, the system can automatically
propagate the configuration from the UFM being replaced to the new UFM.
Specifically, when replacing a UFM4 with a similarly-equipped UFM3, the system can
automatically unprovision the old UFM and provision the new UFM. This is called
auto-reprovisioning, and includes the unprovisioning of the old equipment, interfaces,
and cross-connects, and the reprovisioning of the new equipment, interfaces, and
cross-connects.
When auto-reprovisioning is performed successfully, the new UFM boots seamlessly into
the new configuration, preserving all provisioned interfaces and cross-connects. No
manual reconfiguration is necessary.
Copyright © 2019, Juniper Networks, Inc.120
BTI7800 Series Hardware Overview and Installation Guide
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