User's Manual

Preparing for the Installation
9
Guidelines for Working on Equipment Powered by Electricity
Locate the emergency power off switch for the room in which you are
working. Then, if an electrical accident occurs, you can act quickly to turn off
the power.
Before installing, removing, or repairing an NCU or ACU, unplug the power
cord.
Disconnect all power before working near power supplies.
Do not work alone if potentially hazardous conditions exist.
Never assume that power is disconnected from a circuit. Always check.
Look carefully for possible hazards in your work area, such as moist floors,
ungrounded extension cables, frayed power cords, and missing safety
grounds.
In the Event of an Electrical Accident
Use caution; do not become a victim yourself.
Turn off power to the system.
If possible, send another person to get medical aid. Otherwise, assess the
condition of the victim and then call for help.
Determine if the victim needs rescue breathing or external cardiac
compressions, then take appropriate action.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical
circuitry. It occurs when electronic printed circuit cards are improperly handled
and can result in complete or intermittent failures. Always follow ESD
prevention procedures when removing and replacing cards.