280 Manuals

The UPS is shipped with one battery wire disconnected - in compliance with Department of
1.  Place the UPS to avoid:
Transportation (DOT) regulations. The UPS will not operate until you connect the wire to the
• Direct sunlight
• Excessive heat
• Excessive humidity or contact with liquids
Back-UPS Office ®
 Press “in” the two tabs on the UPS bottom.            Slide the plastic back off the UPS.
The UPS can be wall mounted (optional) see
mounting instructions on back.
User’s Manual
2.  Plug the UPS directly into the power outlet; not
Flex the battery retainer to the right so that               Connect the battery wire to the socket on the
into a surge protector or generator.
battery can be lifted out.                                             the battery.
Slide the plastic piece to the left until the locking      Procedure complete.
990-2051A  Revision 2     10/98
tabs lock into place.
Equipment Connection Example
External Drive
Three - Battery Power Supplied Outlets (solid
Data sensitive equipment such as a computer,
monitor, and external drives are connected to these
A lit indicator means that a shock
outlets. When the UPS is switched “On,”
hazard exists due to faulty building
conditioned utility power is supplied. Battery
wiring, that should be corrected by a
power is automatically provided in case of utility
qualified electrician. Refer to Status
failure. No power (utility or battery) is supplied to
Indicators for more details.
these outlets when the UPS is switched “Off.”
Three - Surge Only Protected Outlets (dashed
Devices like a printer, fax machine, scanner,
or even a desk lamp should be powered by these
outlets. These outlets do not provide power during
a power outage. These three outlets are powered
whenever utility power is available and the UPS
is switched “On.”

External Fax
A UPS Self -Test is performed whenever the unit is
WKH 836
switched on and every two weeks of operation.
Details about Self-Test can be found in the Self-
1.  Press the “On/Off” switch to power the
Test section.
Wall Jack
Socket Location: back side
Battery charging
• The battery charges whenever the UPS is
APC Back-UPS Office protects modem,
fax, or phone from surges when it is
connected to utility power and is switched
connected through the UPS as shown in
the adjacent drawing.
UPS runtime is reduced until the battery is
fully charged (approximately four hours).
Note: Telephone line surge protection can
Keep the UPS “plugged in” and switched “On” to
A lit On Line (green) indicator confirms that
be rendered inoperable if connections are
maximize available runtime.
the UPS is “On.” All outlets are now
not made as shown.
powered. `
The visual and audible UPS status indicators are
described below:
When the On Battery indicator is lit, follow this
procedure to shutdown the computer, UPS, and
Replace Battery (red) - This indicator
any equipment connected to the Battery Power
lights when a UPS Self -Test has
Supplied Outlets.
determined the battery is weakened by
frequent outages or is near the end of its useful
1.  Save the files you are working on.
life. Leave the UPS “On” overnight to recharge,
2.  Exit all applications cleanly.
then repeat the Self -Test. If the Replace Battery
3.  Perform an orderly shut down of the
indicator is still lit, the battery should be replaced
operating system.
within two weeks (see Battery Replacement).
4.  Switch “Off” all equipment connected to
Failure to promptly replace the battery risks the
the UPS.
possibility of premature shut-down during a
5.  Switch “Off” the UPS to maintain battery
power outage.
Note: The procedure above needs to be
Chirps for 1 Minute Every 5 Hours -
completed before the battery is fully discharged.
This alarm indicates the battery has
Loss of data or corruption of the operating
failed the Self-Test.
system is possible if this procedure is not
completed before the battery is fully discharged.
On Battery (yellow) - This indicator
Building Wiring Fault (red) - If the
On Line (green) - This indicator is lit whenever
lights when utility power is unavailable
building wiring fault indicator is lit, one
the UPS is switched “On” and it is supplying
or outside safe limits. The UPS battery is
of the following conditions exists:
conditioned utility power to the outlets. This
A Self-Test can be started at any time by
powering the Battery Power Supplied outlets.
indicator is unlit for approximately four seconds
switching the UPS “Off” and then “On.” A Self -
Open or high resistance ground
during the Self -Test.
Test is performed automatically every two weeks
Four Beeps Every 30 Seconds - This
• Hot and neutral polarity reversal
of continuous operation.
alarm indicates Battery Power Supplied
• Overloaded neutral circuit
Overload Audible Indicators
outlets are now battery powered. The alarm
• Perform the UPS Shutdown Procedure
ceases when the UPS returns to “On Line”
Improper  building wiring will not prevent the
Continuous Beeps for 30 Seconds -
before switching the UPS “Off.
UPS from operating but will limit its protection
This alarm indicates the UPS has
• A Self-Test  should be performed with all
capability. Faulty building wiring could result in
detected an overload after Self-Test.
connected devices switched “On,”
Continuous Beeping - This alarm
equipment damage that is not covered by APC.
whenever a device is first connected to a
indicates a Low Battercondition is
Please refer to APC's Equipment Protection
Continuous Two-tone Beep - This
Battery Power Supplied Outlet.
reached. Battery runtime is very low.
Policy for details.
alarm indicates a severe overload is
Immediately, perform the UPS Shutdown
detected while operating on-battery. The UPS
APC and UPS Office are registered trademarks
will emit this sound until the UPS  shuts down.
of American Power Conversion

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