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Chapter 1 General Information
The PowerShield
®
provides a power source for broadband telephony and other DC applications.
Safety
This Safety Guide contains important instructions that should be followed during installation and
maintenance of the APC equipment and batteries. It is intended for APC customers who setup,
install, relocate, or maintain APC equipment.
Changes and modifications to this unit not expressly approved by APC could void the
warranty.
Failure to observe these warnings may result in serious injury, death or damage to the
equipment.
Electrical
Warnings
Do not work alone under hazardous conditions.
Servicing this equipment may require working with protective covers removed
and utility power connected. Use extreme caution during these procedures.
Check that the power cord(s), plug(s), and sockets are in good condition.
Replacement of fuses or other parts must be with identical types and ratings.
Substitution of nonidentical parts may cause safety and fire hazards.
Battery
Warnings
Danger of explosion if battery is incorrectly connected or replaced. Use only
APC replacement batteries.