Chapter 26 FP addition 153
Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
FP addition task flow
The following task flows show you the sequence of procedures you do to add
an FP to a shelf. To link to any procedure, go to
“Task flow navigation”
(page 156).
CAUTION
Risk of service loss by inadequate power
Two power supplies must be installed before inserting a
32-port MSA 2-slot FP with the PEC NTNQ69AA,
NTNQ71AA, NTNQ73AA, NTNQ74AA, NTNQ76AA,
or NTNQ78AA. There is a risk of a shelf reset when
installing one of these FPs in a shelf with only one
operating power supply unit. This risk does not apply
when the FPs are already installed and one of two power
supplies fails.
CAUTION
Risk of equipment damage from software
An incompatible software load can damage an FP
beyond a field repair. Ensure that the software running
on the device meets the minimum software requirement
for an FP. Minimum software requirements are
identified per FP in NN10600-551 Nortel Networks
Multiservice Switch 7400/15000/20000 FP
Configuration Reference.
CAUTION
Risk of service loss
Whenever you install an FP that uses a control cable in a
sparing configuration, you must always insert the FP
into a slot in the shelf before you connect the control
cable. If you connect the control cable between the FP
and the termination or sparing panel before you insert
the FP in the shelf, you can disrupt service to the other
FPs in the sparing configuration.
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