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990-0253A, Revision 2 6/991
Safety
This section contains important instructions that should be followed during installation and maintenance of the Redundant Switch. It
is intended for customers who setup, install, relocate, or maintain APC equipment.
Electrical Safety
• Do not work alone under hazardous conditions.
• High short circuit current through conductive materials could cause severe burns.
• Check that the power cord(s), plug(s), and sockets are in good condition.
• To reduce the risk of electric shock when grounding cannot be verified, disconnect the equipment from the AC power outlet
before installing or connecting to other equipment. Reconnect the power cord only after all connections are made.
• Do not handle any kind of metallic connector before the power has been removed.
• Use one hand, whenever possible, to connect or disconnect signal cables to avoid a possible shock from touching two surfaces
with different electrical grounds.
• Connect the equipment to a three wire AC outlet (two poles plus ground). The receptacle must be connected to appropriate
branch circuit/mains protection (fuse or circuit breaker). Connection to any other type of receptacle may result in a shock hazard.
CAUTION! Deenergizing Safety
• To deenergize: press and hold both UPS Off buttons for more than one second to switch the equipment off. Next disconnect the
equipment from the AC power outlet.
• Pluggable equipment includes a protective earth conductor which carries the leakage current from the load devices (computer
equipment). Total leakage current must not exceed 3.5 mA.
• Use of this equipment in life support applications where failure of this equipment can reasonably be expected to cause the
failure of the life support equipment or to significantly effect its safety or effectiveness is not recommended.
Handling Safety
⇒ <18 kg (<40 lb.)
⇒ 18-32 kg (40-70 lb.)
⇒ 32-55 kg (70-120 lb.)
⇒ >55 kg (>120 lb.)
• Be careful. Do not lift heavy loads without assistance.
• Equipment with casters is built to move on a smooth surface without any obstacles.
• Do not use a ramp inclined at more than 10°.
• This equipment is intended for installation in a temperature-controlled (0° - 50° C, +32° - +122°F) indoor area, free of
conductive contaminants.