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Troubleshooting
Use the table below to solve minor Back-UPS NS installation or operation problems. Consult APC Online Technical Support or call APC
Technical Support for assistance with problems that cannot be resolved using the table below:
Back-UPS NS will not turn on.
No power available at the Surge Protection
outlets.
Connected equipment loses power.
The Power indicator is lit and the Back-UPS
NS is beeping four times every 30 seconds.
The Power indicator flashes and the Back-
UPS beeps twice per second at the same time.
Building Wiring Fault indicator is lit.
Inadequate runtime.
No phone/fax/DSL signal from the Back-UPS.
Internet connection is lost during power
outage.
Connect the battery (see Connect Battery) and ensure power is available at the wall
outlet.
Reduce the amount of equipment plugged into Surge Protection outlets.
Ensure the fuse or circuit breaker for the outlet is not tripped, and that the wall switch
controlling the outlet (if any) is in the ON position.
Ensure the equipment you want to stay powered during a power failure is plugged
into the “Battery Backup plus Surge Protection” outlets and NOT the “Surge
Protection” outlets.
Make sure the equipment plugged into the outlets of the unit are not overloading its
capacity. Try removing some of the equipment and see if the problem continues.
The Back-UPS NS is operating normally.
The Back-UPS NS can only operate on battery power for a limited amount of time.
The unit will eventually turn off when the available battery power has been used.
Allow the unit to recharge for 16 hours before expecting maximum runtime.
The output waveform is designed for computers and computer-related equipment. It
is not designed for use with motor-type equipment.
Contact APC Technical Support for further troubleshooting.
The Back-UPS NS is operating normally and using battery power. Once On Battery,
you should save your current work, power down your equipment, and turn the unit
OFF. Once normal power is restored, you may turn the unit back ON and power your
equipment.
The Back-UPS NS is about to shut off due to a low battery charge condition! When
the unit beeps twice every second, the battery has about 2 minutes of power
remaining. Immediately power down your computer and turn the unit OFF. When
normal power returns, the unit will recharge the battery.
Call a qualified electrician for service.
Allow the unit to charge by leaving it plugged into the wall at least 16 hours.
As a battery ages, the amount of runtime available will decrease. You can replace
the battery by ordering one at www.apc.com. Batteries also age prematurely if the
Back-UPS NS is placed near excessive heat.
Make sure the data line from the wall outlet is connected to the jack labeled “Wall
Outlet (Phone/Fax/DSL).
Plug the AC power cord of the modem into one of the four “Battery Back-up plus
Surge Protection” outlets.
Problem Probable Cause Solution
Specifications
Warranty
Service
APC Contact Information
Input Voltage 120 Vrms Nominal
Frequency 50 - 60 Hz (auto-sensing)
Brownout Transfer 88 Vrms, typical
Over-voltage Transfer 139 Vrms, typical
Output UPS Capacity (4 outlets) 600 VA / 360 W
Total Amperage (8 outlets) 12 Amps (including UPS output)
Voltage
On Battery
115 Vrms +
8%
(step-approximated sine wave)
Frequency - On Battery 50-60 Hz +
1 Hz
Transfer Time 6 ms typical, 10 ms maximum
Protection and Filter AC Surge Protection Full time, 375 joules
Phone/fax/DSL Surge
Protection
Single line (2-wire)
EMI/RFI Filter Full time
AC Input Resettable circuit breaker
Battery Type Sealed, maintenance-free lead acid
Average Life 3 - 5 years depending on the number of discharge
cycles and environmental temperature
Physical Net Weight 16.2 lb. (7.3 kg.)
Size 4.0” (H) x 11” (W) x 7.1” (D)
(10.2 x 27.9 x 18.03 cm)
Operating Temperature
+32
o
F to 104
o
F (0
o
C to 40
o
C)
Storage Temperature
+5
o
F to 113
o
F (-15
o
C to 45
o
C)
Operating Relative Humidity 0 to 95% non-condensing
Operating Elevation 0 to 10,000 ft (0 to 3,000m)
Safety/Regulatory Safety Approvals cTUVus, NOM-001
EMC Compliance Notice: This device complies with part 68 and
part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) This device
may not cause harmful interference, and (2)
This device must accept any interference
received, including interference that may
cause undesired operation.
On the bottom of this equipment is a label that
contains, among other information, the FCC
registration number and ringer equivalence
number (REN) for this equipment. If
requested, this information must be provided
to the telephone company.
Model BN600
The standard warranty is 2 years from the date of purchase. APC’s standard
procedure is to replace the original unit with a factory reconditioned unit. Customers
who must have the original unit back due to assigned asset tags and set depreciation
schedules must declare such a need at first contact with APC Technical Support. APC
will ship the replacement unit once the defective unit is received by the repair
department or cross-ship upon the provision of a valid credit card number. The
customer pays for shipping to APC, and APC pays ground freight transportation costs
back to the customer.
Please DO NOT RETURN Back-UPS NS to the place of purchase under any
circumstances.
1. Consult the Troubleshooting section to eliminate common problems.
2. Verify the battery is connected (see Connect Battery) and that the Circuit Breaker is
not tripped (see Troubleshooting section).
If you still have problems or questions, please contact APC via the internet or at one of
the phone numbers listed below.
3. Before contacting APC, please be sure to record the date purchased, UPS model,
and serial number (on bottom of unit).
4. Be prepared to troubleshoot the problem over the telephone with a Technical
Support Representative. If this is not successful, the representative will issue a Return
Material Authorization Number (RMA#) and a shipping address.
5. Pack the unit in its original packaging. If the original packaging is not available, ask
APC Technical Support about obtaining a new set. Pack the unit properly to avoid
damage in transit. Never use foam beads for packaging. Damage sustained in transit is
not covered under warranty (insuring the package for full value is recommended).
6. Write the RMA# on the outside of the package.
7. Return the unit by insured carrier to the address given to you by APC Technical
Support.
Online Technical Support: http://support.apc.com
http://www.apc.com/support
esupport@apcc.com
Web Site: www.apc.com
USA/Canada: 1.800.800.4272
Mexico: +52.292.0253 / 52.292.0255
Brazil: +0800.12.72.1
Worldwide: +1.401.789.5735
Order Replacement Battery
Replace with an APC qualified battery. Replacement batteries can be ordered from
www.apc.com (valid credit card required). Have your Back-UPS NS model number
available when ordering. Your model number can be found on the bottom of the unit.
Battery is disconnected or utility power is not available at
the wall outlet.
Surge Protection outlets have been overloaded.
Utility power not available at the wall outlet.
Equipment is connected to the “Surge Protection” outlets.
The Back-UPS NS is overloaded.
PowerChute Personal Edition software has performed a
shutdown due to a power failure.
The Back-UPS NS has exhausted its available battery
power.
Connected equipment does not accept the step-
approximated sine waveform the Back-UPS NS.
The Back-UPS NS may require service.
The Back-UPS NS is using battery.
Battery capacity is low (about 2 minutes of use remaining).
Your building wiring presents a shock hazard. Using the
Back-UPS with this condition will void the warranty.
The battery is not fully charged.
Battery is near the end of useful life.
Data line from the ISP or wall outlet is connected to the
wrong jack on the Back-UPS.
Modem has lost AC Power.