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The computer interface port has the following characteristics:
1.

Plug-and-Play Support

2.

Hot-Attachment

3.

USB Port Protection

4.

Self-Powered

5.

1.5 Mbps Low-Speed 
USB Device

6.

Compliant with USB 
Specification Version 1.0

7.

Compliant with HID Specification Version 1.0

8.

Compliant with HID Power Device Class Version 1.0

9.

Display UPS Status Data:
Voltage Out-of-Range/Buck/Boost/Frequency Out-of-Range/Overload Over
Charged/Over Temperature/Internal Fail/Shutdown Request/Shutdown
Imminent Switch On/Off/Switchable/Tested Awaiting
Power/Good/Beeper/Terminate Charge Terminate Discharge/Below
Remaining Capacity-Limit/Remaining Time Limit-Expired
Charging/Discharging/Fully Discharged/Need Replacement

10.

Measurement Items:
AC Input Voltage/AC Output Voltage/AC Input Frequency/AC Output
Frequency Battery Voltage/Battery Capacity/Temperature Percent Load 

11.

Control Items:
Turn On/Off Outlet/Schedule Shutdown/High/Low Transfer Voltage/Battery
Test Delay Before Shutdown/Delay Before Startup/Delay Before Reboot

4.0

Inspection
Inspect the UPS upon receipt. The packaging is recyclable; save it for
reuse or dispose of it properly.

4.1

Placement 
Install the UPS in a protected area with adequate air flow and free of
excessive dust. Do not operate the UPS where the temperature and
humidity are beyond the specified limits.

4.2

Connect Computer Interface
Belkin Sentry Bulldog Shutdown Management Software and the USB or
RS232 DB9 cable (depending on model) can be used with this UPS. If
used, connect the interface cable to the computer interface port on the back
panel of the UPS and then connect to the USB or Serial port on your PC.

4.3

Connect to Utility
Connect the AC input power connector to utility power to power up the
UPS.

4.4

Charge the Battery
The UPS charges its battery whenever it is connected to the utility power.
For best results, charge the battery for 4 hours prior to initial use.

4.5

Connect the Loads
Plug the loads into the output connectors on the rear of the UPS. To use the
UPS as a master on/off switch, make sure all of the loads are switched on.

4.6 Cable 

Management

It is used to corral all of the power cords into a neat and safe order. It also
assists in preventing accidental cord detachment.

UPS Uninterruptible Power Supply User Manual

Thank you for purchasing the Belkin Uninterruptible Power Supply (UPS). It will
provide you with the best protection for your connected equipment.

Please read this manual!   
This manual provides safety, installation, and operating instructions that will help
you obtain the highest performance and service life that the UPS has to offer.

Please save this manual!
It includes important instructions for the safe use of this UPS and for obtaining
factory service should the proper operation of the UPS come into question.

Please save or recycle the packaging materials!
The UPS shipping materials were designed with great care to provide protection
from transportation-related damage. These materials are invaluable if you ever have
to return the UPS for service. Damage sustained during transit is not covered
under the warranty.

Responsible Party: 

Important Safety Instructions

Have you ever noticed your lights dim or flicker when you turn on your
dishwasher or air-conditioning? This common occurrence is attributed to an
under-voltage of power, also known as a BROWNOUT.

A brownout is a period of insufficient power-line voltage. It is the most common
power problem, accounting for 80% of all power disturbances.

Effects: A brownout can deprive a computer of the power it needs to function,
causing unwanted damage to your computer, such as frozen keyboards and hard
drive crashes. Such problems will cause you to incur computer repairs, lost data,
and downtime.

Solution: A Belkin Uninterruptible Power Supply (UPS) with Automatic Voltage
Regulation (AVR). Typical "Stand-by" UPS units do not have AVR to increase the
output voltage or decrease the output voltage to your computer. A surge
protector can only protect your computer from over-voltages due to irregular
power. Belkin UPS units protect against surges, spikes, swells, line-noise,
brownouts, and blackouts!

Only a Belkin UPS with AVR can give your computer clean 
and consistent power at all times.

Note: There is no guarantee that interference to radio/TV will not occur in a
particular installation. If this UPS causes interference to radio or television
reception (this can be determined by turning the UPS power off and on), the user
is encouraged to try to correct the interference by one or more of the 
following measures:

Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected. 

Increase the separation between the equipment and the receiver.

Reorient or relocate the receiving antenna.

Introduction

CAUTION! 

To reduce the risk of electric shock, disconnect the UPS from

the main power supply before installing a computer interface signal cable.
Reconnect the power cord only after signaling interconnections have been made. 

CAUTION! 

The internal energy source (the battery) cannot be 

de-energized by the user. The output may be energized when the unit is not
connected to a main power supply, thus, a shock hazard may be present.

CAUTION! 

(RISK OF ELECTRIC SHOCK) HAZARDOUS LIVE PARTS

INSIDE THIS UNIT ARE ENERGIZED FROM THE BATTERY SUPPLY EVEN WHEN
THE INPUT AC POWER IS NOT CONNECTED.

CAUTION! 

(RISK OF ELECTRIC SHOCK) DO NOT REMOVE COVER. NO

USER SERVICEABLE PARTS INSIDE, PLEASE REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

WARNING: 

TO REDUCE THE RISK OF FIRE, ONLY REPLACE THE

FUSE WITH THE SAME TYPE AND RATING.

Safety

Presentation

FRONT PANEL
Different LEDs on the front panel will signal information when various 
conditions occur:

LED

"

: Light

"

: Flash

MEANING

3.0 ON-LINE

Green

"

Utility is normal.

Utility is abnormal—AVR (Automatic Voltage
Regulation) in operation.

3.1 ON-BATTERY

Yellow

"

UPS supplies power to outlets from 
battery source.

Battery is low; the UPS will start shutdown. 
The buzzer sounds an audible alarm.

3.2 OVERLOAD

Red

"

There is a problem with the UPS. The LED will be lit
continuously and the buzzer will sound an audible
alarm for 10 seconds.

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

3.3 REPLACE BATTERY

Red

"

Battery is too weak or bad.

If UPS is in “On-Battery” mode this means the UPS is
just testing the condition of the battery.

3.4

ON/OFF/TEST/SILENCE BUTTON
Press the button more than 3 seconds to turn the UPS on or off, press the
button less than 3 seconds to activate the UPS self-testing or to silence
the back-up alarm.

REAR PANEL
3.5

INTERFACE PORT
Provides both USB or RS232 (depending on model) to relay the signal to
support DOS

®

, Windows

®

, and other operating systems.

3.4

On/Off/Test/Silence

3.0

On-Line

3.1

On-Battery

3.2

Overload

3.3

Replace

Battery

REAR PANEL (continued)
3.6

TELEPHONE/FAX/MODEM OR 10Base-T NETWORK PROTECTION 
Telephone/Fax/Modem lines are surge protected and provide complete
safety for Internet connection. One input and two outputs allow for two
devices to be protected (i.e. modem and fax).

3.7

BATTERY REPLACE DOOR (HOT-SWAPPABLE)

3.8

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

3.9

AC INPUT POWER RECEPTACLE 

3.10 AC BREAKER (CIRCUIT BREAKER) 

The circuit breaker button will stick out if an overload condition forces the
UPS to disconnect itself from utility power. If the button sticks out,
disconnect non-essential equipment. 

3.11 BATTERY BACK-UP OUTLET 

Data-sensitive equipment, such as a computer, monitor, and external drive
should be powered by these outlets. Battery power is automatically
provided in case of a power outage. Power (utility 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.)

3.12 SURGE-ONLY PROTECTED OUTLETS  

Equipment such as a printer, fax machine, scanner, or desk lamp should
be powered by these outlets. These outlets do not provide power during a
power outage. These outlets are always on (when utility power is available)
and are not controlled by the front panel switches.

Note: During the self-test, the UPS briefly operates the loads on-battery (the on-

battery LED comes on). If the UPS passes the self-test, it returns to on-
line operation. 

The on-battery LED goes off and the on-line LED goes on steady. 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.

5.3

SILENCE
In " BACK-UP" mode, push on/off/test less than 3 seconds to silence the audible
alarm. (The function is void when under condition of "LOW BATTERY" or
"OVERLOAD".)

Note: In back-up mode, the UPS can be automatically turned off if none of the

connected loads are operating.

Operation (continued)

Alarm

6.0

BACK-UP (slow alarm)
When in "BACK-UP" mode, the yellow LED illuminates and the UPS sounds
an audible alarm. The alarm stops when the UPS returns to “LINE
NORMAL” operation.

6.1

LOW BATTERY (rapid alarm)
In "BACK-UP" mode, when the battery energy runs low, the UPS beeps
rapidly until the UPS shuts down from a depleted battery or returns to
“LINE NORMAL” operation.

6.2

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.

6.3

FAULT (30 seconds continuously)
When the output is shorted, the UPS emits a 30-second continuous alarm
to warn of a short condition.

Disconnect the equipment from the UPS prior to checking the
equipment.

Software Options

7.0

Belkin Sentry Bulldog Shutdown Management Software 
Belkin Sentry Bulldog Shutdown Management Software receives
communication through the USB or RS232 interface port (depending on
model) to perform monitoring functions, and also provide an orderly
shutdown of the computer in the event of a power failure. Moreover, Belkin
Sentry Bulldog Shutdown Management Software displays all of the
diagnostic symptoms on screen, such as Voltage level, Frequency, Battery
level, etc.

The software is available for Windows

®

95, Windows

®

98, Windows NT

®

V4 or higher, and Windows

®

2000.

7.1

Interface Kits
Each interface kit includes a special interface cable which is required to
convert status signals from the UPS into signals that the individual
operating system can recognize. The interface cable must be connected to
the USB or RS232 port (depending on model) on the UPS. The other side
of the interface cable can be connected to the USB or RS232 port
(depending on model) of your PC. For other installation instructions and
features, please refer to the README file.

CAUTION:

Use only a factory supplied or authorized UPS monitoring cable!

7.2

USB (Universal Serial Bus): HID (Human Interface Device) 
setup procedure
1.

When the USB cable that comes with the UPS is first connected to a

USB port on your computer, the Windows

®

98 dialog called “ADD NEW

HARDWARE WIZARD” should appear automatically.

(To display this dialog manually, you can choose the Start button and then
“Settings” to access the Control Panel and then double-click “ADD NEW
HARDWARE”. The USB cable should be connected already.)

2.

The “ADD NEW HARDWARE WIZARD” dialog box guides you through

the installation process. Click “Next”.

3.

A dialog states "Windows will now search for any new Plug-and-Play

devices on your system". Click “Next”.

4.

A subsequent dialog gives you these options:

• Search for the best driver for your device (recommended).

• Display a list of all drivers in specific location, so you can select

the driver you want.

Please accept the recommended choice by clicking “Next”.

5.

The Wizard will then search your hard drive for a file 
called….\INF\hiddev.inf. This file contains all the information that 
Windows

®

98 needs to install the correct device drivers.

6.

At this point the wizard might ask for the Windows

®

98 CD-ROM. 

Place the CD in the CD-ROM drive and select “OK”.

7.

The installation process will continue automatically until a dialog 
displays indicating that the drivers have been installed. Select the 
“Finish” button and your drivers are installed.

USB Interface Port

P73446-B

Belkin Components, Ltd.

Unit 13 • Gatelodge Close • Round Spinney

Northampton • Northants • NN3 8RX  

United Kingdom

Tel: +44 (0) 1604678300

Fax: +44 (0) 1604678330

Belkin Components B.V.

Diamantlaan 8 • 2132 WV 

Hoofddorp • The Netherlands

Tel: +31 (0) 235698765

Fax: +31 (0) 235612694

Presentation (continued)

CAUTION:

Never connect a laser printer or scanner to the

backup outlets of the UPS with other computer equipment. A laser
printer or scanner periodically draws significantly more power when
in use than when idle. This may overload the UPS.

Installation

4.7 

Connect the Telephone/Fax/Modem Lines 
Connect a single-line telephone/fax/modem line into the surge-protected
sockets on the back of the UPS. The RJ45/RJ11 modular sockets accept
standard single-line telephone connections. This connection will require
another length of telephone cable (supplied).

Note: This connection is optional but highly suggested as telephone/fax/modem

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

CAUTION:

The telephone/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 (telephone/fax/modem) is
plugged into the connector marked "OUT".

CAUTION:

This surge-protection device is for indoor use only.

Never install telephone wiring during a lightning storm.

5.0

Switch On
With the UPS plugged in, press and hold the on/off/test/silence button for more
than 3 seconds until the "ON-LINE" LED lights up to switch the UPS on. 
The UPS will perform self-testing each time it is switched on. 

Note: The UPS maintains the battery charge when in the off position and will

respond to commands received through the computer interface port. 

5.1

Switch Off
Press and hold the on/off/test/silence button for more than 3 seconds until the
"ON-LINE" or "ON-BATTERY" LED goes off.

5.2

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/silence button less than 1
second and the UPS performs a self-test function. During the self-test, the UPS
operates in back-up mode.

Operation

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