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                      INTRODUCTION                        

 

 

Thank you for purchasing a Belkin Uninterruptible Power 

Supply (UPS). Each year, several natural and man made 

occurrences put the power supplied to your electronics in 

your home or office in jeopardy. At risk are your hardware, 

software and data because of these power problems. 

            IMPORTANT SAFETY INSTRUCTIONS              

                           

Please save this manual! 

It contains important operating instructions and warranty 

information pertaining to your UPS. 

Please save or recycle the packaging materials! 

The UPS packaging was designed with great care to provide 

protection during shipment and delivery.    These materials 

are invaluable if you ever have to return the UPS for service. 

Damage sustained during transit is not covered under the 

warranty. 

Federal Communications Commission Interference 

Statement 

This equipment has been tested and found to comply with 

the limits for a Class B digital device, pursuant to Part 15 of 

the FCC Rules. These limits are designed to provide 

reasonable protection against harmful interference in a 

residential installation. This equipment generates, uses and 

can radiate radio frequency energy and, if not installed and 

used in accordance with the instructions, may cause harmful 

interference to radio communications. To assure continued 

compliance, use only shielded interface cables when 

connecting to computer or peripheral devices. Any changes 

or modifications not expressly approved by the party 

responsible for compliance could void the user’s authority to 

operate this equipment. 

                                                  CONTENTS                                                 

   

You should have received the following: 

1 – UPS unit 

1 – Bulldog Plus Shutdown Software 

1 – USB Cable 

1 – Phone Line Cable 

1 – Coaxial Cable (only F6B750-AVR)   

                 SYSTEM REQUIREMENTS                  

       

The UPS can be used without the software and can be used 

with any computer using a monitor or a flat panel screen. 

Also, you do not have to have the software installed to utilize 

the battery backup outlets. 

To fully utilize the UPS and its software, your computer must 

be able to operate the following operating systems: 95/ 98/ 

ME/ NT4/ 2000/ 2003/ XP & Linux & Higher and have a USB 

port. 

           UPS FEATURES AND FUNCTIONS              

Before installation, please inspect the UPS upon receipt. 
Make sure that nothing is damaged. 
 
 
 
 
 
 
 
 
 
 
 
Your UPS features 3 LED indicators which specific’s certain 
functions on your UPS. Please review the Front Panel 
diagram and with this chart, as it will assist you in the use of 
your UPS.

 

Indicator Condition 

Meaning 

О

 Solid Green 

AC Power is on 

ON LINE 

(Green LED) 

 Flashing Green 

AVR is active 

ON BATTERY 

(Yellow LED) 

 Flashing Yellow 

LED with Audible 

Alarm (Beeping) 

This condition for the 
On-Battery LED can indicate 
1 of 2 problems: 

1. The UPS is on battery 

backup and an 

intermittent audible alarm 

is on. The UPS will begin 

shutdown procedure. 

2. Battery is low. The UPS 

will start shutdown. The 
buzzer sounds an audible 
alarm. 

 Solid Red 

The Fault/Overload can 
indicate 1 of 2 problems.

1. There is a problem with 

the UPS. The LED will 
be lit continuously, and 
the unit will sound an 
audible alarm for 10 
seconds. 

 

2. Battery is weak or bad; 

the battery needs to be 
replaced. 

FAULT/ 

*OVERLOAD/ 

*Replace 

Battery 

(Red Led)

 

 Flashing Red 

Battery output is drawing 
more power than the UPS 
can provide. 

SITE WIRING 

FAULT 

(ON REAR 

PANEL) 

 Solid Red 

There is either no ground 
circuit or a reversed 
polarity in the building 
wiring. 

 
 
 
 
 

 
 
 
 
 

 
 
 
 
 

                                                              ALARMS                                                                           

BATTERY BACK UP (Slow Alarm)   

When in the UPS is in battery BACK-UP mode, the On Battery 
(Yellow LED) illuminates and the UPS sounds an audible alarm. The 
alarm stops when the UPS returns to normal ON LINE operation. 

LOW BATTERY (Rapid Alarm) 

When the UPS is in battery BACK-UP mode and the battery energy 
begins to run low, the UPS will beep rapidly until it shuts down from 
a depleted battery or returns to ON LINE normal operation. 

OVERLOAD (Continuous alarm) 

When the UPS is overloaded (the connected loads exceed the 
maximum rated capacity), the UPS emits a continuous alarm to 
warn of an overload condition. Disconnect nonessential equipment. 
from the UPS to eliminate the overload. 

FAULT (10 Seconds Continuously) 

When the UPS occur fault, the UPS emits a 10 seconds continuous 
alarm to warn of a fault condition. Disconnect the equipment from 
the UPS prior to checking the equipment. 

                                                    TOP & REAR PANEL                                                 

             

 
 
 
 
 
 
 
         
 
 
 
 

 
 
 

            TOP PANEL                                      REAR PANEL 

A

 SURGE-ONLY PROTECTED OUTLETS 

Equipment such as a printer, fax machine, scanner, or a desk 
lamp can be plugged into these outlets. These outlets do not 
provide power during a power outage. These outlets are always 
on (when AC power is available) & are not controlled by the 
front panel switch. 

B

 BATTERY BACK UP OUTLETS 

Only data sensitive equipment such as a computer, monitor and 
external drive should be plugged into these outlets. Battery 
power is automatically provided in case of a power outage. 
Power (AC or battery) is not supplied to these outlets when the 
UPS is switched off. (Do not plug surge protectors or power 
strips into the battery back up outlets). 

C

 PHONE/FAX/ MODEM PROTECTION 

The phone/fax/modem lines are surge protected and provide 
complete safety for line connection.   

D

 INTERFACE PORTS   

The UPS provides a USB port for you use with your computer.   

E

 AC INPUT BREAKER (CIRCUIT BREAKER) 

The circuit breaker button will be triggered if an overload 
condition forces the UPS to disconnect itself from utility power. 
If the button sticks out, disconnect nonessential equipment and 
depress breaker. 

F

 AC INPUT POWER CORD 

G

 SITE WIRING FAULT INDICATOR 

The Site Wiring Fault LED will illuminate when one of the 
following conditions exist: 
1. 

Open or high-resistance ground 

2. 

Hot and neutral polarity reversal 

3. 

Overloaded neutral circuit 

H

 AUDIO/ VIDEO SURGE PROTECTION PORT   

(Only F6B750-AVR) 
 

                                                      INSTALLATION                                                     

                                                                                           

Note!  

Before installation, please inspect the UPS Upon 
receipt. Make sure that the UPS is not damaged. 

Connect to AC Utility Power 

Connect the AC inlet to utility power via the power cord. 
Check whether the Site Wiring Fault indicator is lit or not. 
If so, please check the utility wiring. 

Charging the Battery 

For best results, charge the battery for 8 hours prior to initial use. 

The UPS charges its battery whenever it is connected to the 
utility power.   

Plug in Power Devices 

Plug your devices into the AC outlets on the top of the UPS. To 

use the UPS as a master on/off switch, make sure all of the 

loads are switched on. 

Caution: Never connect a laser printer or 

scanner to the backup outlets of UPS with 

other computer equipment. A laser printer 

or scanner draws significantly more power 

when in use than when idle. This may 

overload the UPS. 

Turning on the UPS

 

Turn on your UPS by pressing and holding the On/Off/Test 

button for approximately 2 seconds until the “ON LINE” Green 

comes on. 

 

Turning off the UPS

 

Turn off the UPS by pressing and holding the On/Off/Test 
button for more than 2 seconds until the “ON LINE” or “ON 
BATTERY” LED goes off. 

To Conduct a Self Test 

Use the self-test to verify both the operation of the UPS and 

the condition of the battery. In normal utility power, push the 

On/Off/Test button less than 1.5 seconds and the UPS 

performs a self-test function. During the self-test, the UPS 

operates in back-up mode. 

Note! During the self-test, the UPS briefly operates on- 

battery backup power (the on-battery LED comes on). If 

the UPS passes the self -test, it returns to on-line 

operation. If the UPS fails the self-test, it immediately 

returns to on-line operation and lights the replace battery 

LED. The loads are not affected. Recharge the battery 

overnight and perform the self- test again. If the replace 

battery LED is still on, the battery will need to be 

replaced. 

To Silence Audible Alarm

 

 

While in battery BACK-UP mode, push on/off/test button less 

than 1.5 seconds to silence the audible alarm. (This does not 

work if the UPS is under LOW BATTERY or OVERLOAD 

condition. 
All equipment must be turned off prior to hardware installation. 

Connect the phone/ fax/ modem/ lines

 

 

Connect a single phone/ fax/ modem line into the 
surge-protected sockets on the back of the UPS. The RJ-11 
modular sockets accepts standard single line telephone 
connections. The connection will require another length of 
telephone cable, which is supplied. 

 

 

 
 
 
 
 
 
Note! 

This connection is optional but highly suggested as 

phone/ fax/modem lines often carry dangerous surges and 
spikes. The UPS works properly without a phone/ fax/ modem 
connection. 

Caution! 

The phone/ fax/modem protection feature could be 

rendered inoperable if improperly installed. Make sure that the 
telephone line from the wall is plugged into the connector 
marked “IN”, and the device to be protected is plugged into the 
connector marked “ OUT”.   

           BATTERY REPLACEMENT PROCEDURE         

Replacement requires removing the battery cover plate on the 

back or bottom of the UPS. No tools are needed. To replace 

the batteries: 

1.  Press fastener to remove the battery cover plate on the 

back of the UPS (Fig. 1).

 

 

2.  Disconnect the insulated connectors from the battery 

terminals (Fig. 2)   

3.  Remove the battery then insert a new battery pack, and 

push the connectors onto the battery terminals (black to 

black & red to red)(Fig. 3) 
NOTE: There may be a small spark at the battery 

terminals when reconnecting the connectors. This is 

normal and will not harm you or the UPS. 

4.  Close the battery cover (Fig. 1). 

 

 

 

 

 

 

 

Fig. 1                        Fig. 2                        Fig. 3 

                              USB COMMUNICATION PORT                               

 

To fully utilize the Bulldog Plus Shutdown Software; you will 

need to connect the UPS to your computer.   
The communication port will provide the following features:   
1.  Monitoring charger status   
2.  Monitoring UPS status         
3.  Monitoring battery status and condition 
4. Monitoring 

the utility status 

5.  Use the ON/OFF/TEST UPS power switch function to 

schedule UPS for power saving 

Using the USB cable (provided), connect the cable to your 

UPS then connect the other end to the USB port on your 

computer. 

Caution: Use only the factory-supplied UPS monitoring 
cable. 

FOR MODEL

F6C550-AVR
F6C750-AVR
F6B750-AVR

R

 

ON/ OFF/ TEST

ON LINE

ON BATTERY

FAULT/
* OVERLOAD/
* REPLACE
BATTERY

Wiring Fault

IN              

cautionary marking

Refer to bottom for

OUT

AC Input

Protection 

IN              

Breaker

Circuit

Push to  Reset

Network

RS-232

OUT

OUT

 Phone/Fax/Modem Protection 

IN                   

Site

OUT

F

C

D

E

G

H

IN              

Breaker

Circuit

RS-232

Push to Reset

 Phone/Fax/Modem Protection 

Wiring Fault

OUT

IN              

OUT

Telephone Socket

Phone/ Fax/ Modem

A

B

Surge Protection Only

750 VA

Battery Back-up + Surge Protection

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