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Safety Precautions during installation and
system upgrades
Always unplug or isolate the mains supply when installing or upgrading the
system.
After installing the Main Equipment (CCU) and all required modules, ensure
that the following points are checked before switching the mains power on:
The cabled Extensions have a DTMF telephone or a (Eight key/Sixteen
key) Feature phone connected.
The CCU cover is in place and locked.
After switching on the main AC power source, allow at least thirty seconds for the CCU to go
through its power up routine.
Electrostatic precaution (ESP)
The Mitel 3000 contains electrostatic components. To ensure long-term reliability of the
system, electrostatic precautions should be taken when handling any of the system PCBs that
are not enclosed in plastic.
Lightning and surge voltage protection
Extension cabling should not be exposed to high voltage surges, (for
example, surges induced by lightning or neighbouring high current-carrying
cables). If this is a possibility, external protection of the Main Equipment and
Extensions using 'earthed line surge protectors' is essential.
Mitel 3000 Australia Installation and Maintenance Manual
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