Brochures and Data Sheets

NetSure
™
-48V DC Bulk Output Power System
Installation and User Instructions, UM582127100 (Issue AA, May 7, 2013)
Spec. No: 582127100 UM582127100
Model No: 722NBBB Issue AA, May 7, 2013
iv
Important Safety Instructions
General Safety
DANGER!
YOU MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose you to
hazards. These procedures should be performed by
qualified technicians familiar with the hazards
associated with this type of equipment. These hazards
may include shock, energy, and/or burns. To avoid
these hazards:
a) The tasks should be performed in the order
indicated.
b) Remove watches, rings, and other metal objects.
c) Prior to contacting any uninsulated surface or
termination, use a voltmeter to verify that no
voltage or the expected voltage is present.
d) Wear eye protection.
e) Use double insulated tools appropriately rated for
the work to be performed.
Voltages
AC Input Voltages
DANGER! This system operates from AC voltage capable
of producing fatal electrical shock. AC input power
must be completely disconnected from the branch
circuits wiring used to provide power to the system
before any AC electrical connections are made. DO NOT
apply AC power to the system until all electrical
connections have been completed and checked.
DC Input/Output Voltages
DANGER! This system produces DC Power and may
require battery to be connected to it. Although the DC
voltage is not hazardously high, the rectifiers and/or
battery can deliver large amounts of current. Exercise
extreme caution not to inadvertently contact or have
any tool inadvertently contact a battery or output
terminal or exposed wire connected to a battery or
output terminal. NEVER allow a metal object, such as a
tool, to contact more than one termination or battery
terminal at a time, or to simultaneously contact a
termination or battery terminal and a grounded object.
Even a momentary short circuit can cause sparking,
explosion, and injury.
Battery
WARNING! Correct polarity must be observed when
connecting battery leads.
WARNING! Special safety precautions are required for
procedures involving handling, installing, and servicing
batteries. Observe all battery safety precautions in this
manual and in the battery instruction manual. These
precautions should be followed implicitly at all times.
WARNING! A battery can present a risk of electrical
shock and high short circuit current. Servicing of
batteries should be performed or supervised only by
properly trained and qualified personnel knowledgeable
about batteries and the required precautions.
The following precautions should be observed when
working on batteries:
Remove watches, rings, and other metal objects.
Eye protection should be worn to prevent injury
from accidental electrical arcs.
Use certified and well maintained insulated tools.
Use double insulated tools appropriately rated for
the work to be performed. Ensure that wrenches
with more than one working end have only one end
exposed.
Dispose of used batteries according to the
instructions provided with the batteries. Do not
dispose of batteries in a fire. They may explode.
ALWAYS FOLLOW THE BATTERY MANUFACTURER’S
RECOMMENDATIONS AND SAFETY INSTRUCTIONS.
ALERT! Performing maintenance and/or
troubleshooting procedures may interrupt power to the
loads, if battery reserve is not sufficient.
Circuit Card Handling
ALERT! Installation or removal of circuit cards requires
careful handling. Before handling any circuit card, read
and follow the instructions contained on the Static
Warning Page.