User guide

CC9648 Chassis User Guide
8 CommPlete Communications Server
Important Safety Considerations
Fuse Replacement
There is one replaceable fuse in the PS9648 power supply. Only qualified service personnel may replace the
fuse, with one of the same type and rating as indicated.
Caution: For continued protection against risk of fire, replace only with same type and rating of fuse (250
V, 12 A, Type F).
Insertion and Removal of a Power Supply
Qualified service personnel may insert or remove a power supply without turning off the system. We
recommend that you insert the power supply slowly. If the power supply is not replaced, a cover plate
must be inserted.
Safety Warnings
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jacks are specifically designed for wet
locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected
at the network interface.
• Use caution when installing or modifying telephone lines.
• Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote
risk of electrical shock from lightning.
• Do not use the telephone to report a gas leak in the vicinity of the leak.