Lorex DHT304 User Manual

4 CHANNEL DVR

WITH AUDIO & N/W & USB

Model : DHT304

Installation / User Manual

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The DVR converts analog video into digital format and records them on a removable
hard disk drive. Digital video allows you to quickly access and search for a specific time
segment or event which has been recorded. This system features three different quality

settings providing recording capability depending on your hard drive unit.

To learn more about this system or to find out more about our products available,
please visit our website at :

CAUTION

!

RISK OF ELECTRIC SHOCK. DO NOT OPEN.

CAUTION! TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE

COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

Explanation of two Symbols

The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of un-insulated "dangerous voltage" within the
product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is
Intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.

THE GRAPHIC SYMBOLS WITH SUPPLEMENTAL
MARKING ARE ON THE BOTTOM OF THE SYSTEM.

“WARNING – TO PREVENT FIRE OR SHOCK HAZARD,
DO NOT EXPOSETHE UNIT TO RAIN OR MOISTURE”

!

- I -

NOTE

This equipment has been certified and found to comply with the limits regulated by
FCC, EMC and LVD. Therefore, it is designed to provide reasonable protection
against interference and will not cause interference with other appliance usage.
However, it is imperative that user follows this manual's guidelines to avoid improper
usage which may result in damage to the unit, electrical shock a

nd fire hazard or injury.

In order to improve the feature functions and quality of this product, the specifications
are subject to change without notice from time to time.

FCC CLASS B NOTICE

Note :

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 instruction, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, (which can be determined by
turning the equipment off and on), the user is encouraged to try to correct the
interference by one or more of the following measures:

• Increase the separation between the equipment and the camera and/or monitor.

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

• Consult the dealer or an experienced radio or television technician for help.

- II -

CONTENTS :

01. GENERAL PRECAUTIONS -------------------------------------------------------------------------------------------

02. CAUTIONS & DVR FEATURES -------------------------------------------------------------------------------------

03. SYSTEM INCLUDES ---------------------------------------------------------------------------------------------------

04. GETTING STARTED ---------------------------------------------------------------------------------------------------

05. DESCRIPTION OF PARTS AND FUNCTION – FRONT PANEL -----------------------------------------

05–1. FRONT PANEL [ TFT LCD ] -------------------------------------------------------------------------------

05–2. FRONT PANEL [ FUNCTION BUTTON ] ---------------------------------------------------------------

05-3. FRONT PANEL [ DISPLAY BUTTON ] ------------------------------------------------------------------

05-4. FRONT PANEL [ USB & HDD ] ----------------------------------------------------------------------------

06. DESCRIPTION OF PARTS AND FUNCTION – BACK PANEL --------------------------------------------

07. MAIN MENU CONTROL -----------------------------------------------------------------------------------------------

08. PLAYBACK SEARCH -------------------------------------------------------------------------------------------------

09. PLAYBACK OPTION --------------------------------------------------------------------------------------------------

10. MASTER & SLAVE HDD ---------------------------------------------------------------------------------------------

11. PAN /TILT ZOOM -------------------------------------------------------------------------------------------------------

12. REMOTE CONTROL ---------------------------------------------------------------------------------------------------

13. CAMERA INSTALLATION -------------------------------------------------------------------------------------------

14. PAN/TILT CAMERA INSTALLATION -----------------------------------------------------------------------------

15. MONITOR & VCR INSTALLATION --------------------------------------------------------------------------------

16. NETWORK, ALARM & COMPUTER INSTALLATION -------------------------------------------------------

17. NETWORK IMAGE SIZE & SPEED --------------------------------------------------------------------------------

18. RECORDING TIME ( IN HOURS ) ----------------------------------------------------------------------------------

19. RECORDING TIME ( Gigabytes per hour ) ---------------------------------------------------------------------

20. INSTALLING THE HDD ------------------------------------------------------------------------------------------------

21. NET VIEWER --------------------------------------------------------------------------------------------------------------

22. TYPICAL CONFIGURATION FOR A COMPLETE SYSTEM -------------------------------------------------

23. TROUBLE SHOOTING -------------------------------------------------------------------------------------------------

24. CARE & MAINTENANCE -----------------------------------------------------------------------------------------------

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GENERAL PRECAUTIONS :

1. Read Instructions

All of the safety and operating instructions should be read and understood before the product is
used.

2. Retain Instructions

The safety and operating instructions should be retained for future reference.

3. Heed Warnings

All warnings on the product and the instruction manual should be followed.

4. Follow Instructions

All operating and use instructions should be followed for optimal performance

5. Cleaning

Disconnect this video product from the power supply before cleaning. Do not use liquid
cleaners or aerosol cleaners. Use a damp cloth for cleaning.

6. Attachments

Do not use attachments not recommended by the video product manufacturer as they may
cause hazards.

7. Water and Moisture

Do not use this product near water - for example, near a bathtub, wash bowl, kitchen sink, wet
basement, or near a swimming pool.

8. Accessories

Use this product only with a stand, tripod, bracket or table recommended by the manufacturer
or sold with the product. Any mounting of the product should follow the manufacturer’s
instructions.

9. Ventilation

This product should never be placed near or over a radiator or heat register. This product
should not be placed in a built-in installation, such as a book case or rack, unless proper
ventilation is provided or the Manufacturer’s instructions have been adhered to.

10. Power Source

This product should be operated from the type of Power source indicated by the marking label.
If you are not sure of the type of power supply to your location, consult your product dealer or
your local Power company.

11. Power Cord Protection

Power supply cords should not be routed so that they are likely to be walked on or pinched by
items placed on or near them.

12. Lightning

For added protection, unplug this product from its outlet during a lightning storm. This will
prevent damage to the video product due to lightning and power surges.

13. Overloading

To avoid the risk of fire and electric shock, do not plug this product into an over-loaded power
supply.

14. Object and Liquid Entry

Never push objects into the openings of this product as they may touch dangerous voltage points
that may result in fire or electric shock. Never spill a liquid of any kind on this product.

- 01 -

15. Servicing

Do not attempt to service this product yourself as opening or removing covers may expose you
to voltage or other hazards. Refer all servicing to qualified service personnel.

16. Damage Requiring Service

Disconnect this product from the power supply and refer servicing to qualified service personnel
under the following conditions:
a. When the power supply cord or plug is damaged
b. If objects have fallen into the product
c. If the product has been exposed to rain or liquids
d. If the product does not operate normally by following the instruction manual. Adjust only the

controls that are covered in the instruction manual as an improper adjustment may result
in damage and will often require extensive work by a qualified service technician to restore

the product to its normal operation
e. If the product has been dropped or the cabinet has been damaged
f. When the product displays a distinct change in performance - this indicates a need for service

17. Replacement Parts

When replacement parts are required, be sure the technician uses replacement parts specified
by the manufacturer. Unauthorized substitutions may result in fire, electric shock, or other
hazards.

18. Safety Check

Upon completion of any service to this product ask the service technician to perform safety
checks to determine that the product is in proper working condition.

19. Grounding or Polarization

This product is equipped with a three-wire grounding-type plug, a plug having a third (grounding)
pin and will only fit into a grounding-type power outlet. This is a safety feature. If you are unable
to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the grounding-type plug.

20. Power Lines

An outside antenna system should not be located in the vicinity of overhead power lines or other
electric light or power circuits, or where it can fall into such power lines or circuits.
When installing an outside antenna system, extreme care should be taken to keep from touching
such power lines or circuits as contact with them might be fatal.

21. Wall or Ceiling Mounting

The product should be mounted to a wall or ceiling only as recommended by the manufacturer.

22. Heat

The product should be situated away from heat such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.

- 02 -

1. All the warnings and instructions of this manual should be followed

2. Remove the plug from the outlet before cleaning. Do not use liquid aerosol detergents.
Use water damped cloth for cleaning

3. Do not use this unit in very humid and wet places

4. Keep enough space around the unit for ventilation. Slots and openings of the cabinet should

not be blocked.

5. During flashes of lightning or cracks of thunder, or when the system is not used for a long time,

unplug the system power supply and disconnect the antenna and cables to protect the unit

from lightening or power surges.

• 4 Video inputs : 4 BNC inputs ( looping operation ).

• Video outputs : - 2 Composite outputs

- 1 Super VHS output

• VGA option available (PC monitor).

• USB Port for USB Memory Key interface.

• Network ( TCP/IP ) supports.

• Jog-Shuttle function supports.

• RS-232C communication port.

• Internal 2 HDD.

• Optional 3.5” TFT LCD for Front Cover

• Display Resolution : 720 x 480 pixels

• Record Resolution : 720 x 224 pixels

• High Quality Picture with M-JPEG Compression Format ( 15~50Kbyte/Field )

• 3 Adjustable Video Quality Settings

• 4 Recording modes: Manual / Alarm / Motion / Timer

• Display Frame: 30 frames/sec

• Recording Speed: 60 fields/sec

• Security password protection

• On Screen Display and Real Time Clock Function

• Remote Control as well as Main Panel operation

• Supports 20 ~300 GB HDD

• Quick Multiple Search capability

• Viewing options: Quad, Sequential, PIP, POP, Full Screen

• Supports Pan/Tilt control ( Pelco D Protocol ).

• Alarm terminal block

• Triplex Mode ( Live mode, Playback mode, Recording mode )

• Firmware Update Function

CAUTIONS :

DVR FEATURES :

- 03 -

4 CHANNEL DVR

Your system may include a HDD

with a capacity between

20 ~ 300 GB (HDD) depending on the

system you purchased (Option)

OWNER’S
MANUAL

2 KEYS FOR
CARTRIDGE

CHECK YOUR PACKAGE TO MAKE SURE THAT YOU RECEIVED THE COMPLETE SYSTEM,
INCLUDING THE COMPONENTS SHOWN ABOVE.

SYSTEM INCLUDES :

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1. Connect the AC Power Cord to the Power Adapter and plug into an electrical outlet.
Connect up to 4 cameras to the BNC Video inputs on the back of the DVR.
Turn the Main Power Switch to ON.
The Red LED indicator will illuminate and the DVR will be in the standby mode

2. A following message appears when power is ON successfully.

Note : The system is only checking for a MASTER HDD. Install Slave HDD onto DVR in case

using Slave HDD and set at HDD Slave in SETUP MENU.

Note : HDD is not properly connected if FAIL message shows.

Retry connecting HDD and turn on the power.

GETTING STARTED :

*** NETWORK INFOMATION ***

MAC ADDRESS : XX XX XX XX XX XX

IP ADDRESS : 192 . 168 . 001 . 100

SUBNET MASK : 255 . 255 . 255 . 000

GATEWAY : 192 . 168 . 001 . 001

PORT : 5555

Note : Above message indicates set network value in DVR

Note : Set Network values can be changed in SETUP MENU.

*** MASTER HDD DETECT ***

POWER ON CHECK _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ OK

HDD IDENTIFY CHECK _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ OK

HDD R/W CHECK _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ OK

MODEL : XXXXXXXXXXXXXXXXXXXXXX

HDD LBA : XXXXXXXXXXXXXXXXXXXXXX

HDD SPACE : XXX GB

100 %

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DESCRIPTION OF PARTS AND FUNCTION - FRONT PANEL :

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SETTING

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PIP

QUAD/ENTER PTZ/ALRS

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1. DISPLAY BUTTON

This button is used to turn power ON/Off.

2. SETUP BUTTON

This Button selects the function of Brightness, Contrast, and Color.
When pressing this button, it displays OSD Menu and actual setting.

3. SETTING BUTTON

This Button controls key of Brightness, Contrast and Color after selecting menu.

4. TFT LCD

Display current showing images.

FRONT PANEL – TFT LCD

SETTING

SETUP

DISPLAY

DISPLAY BUTTON

SETUP BUTTON

SETTING BUTTON

TFT LCD

- 07 -

1. CHANNEL / ARRTOW BUTTON

These buttons perform the following functions :
a) Displays a picture in Full Screen. If you are in the Quad1 mode, select the Channel 1button and hold

it for 2-3 seconds to view Camera 1 in Full Screen. To view other camera locations, press
CH2, CH3, CH4 buttons.

b) Freezes a specific camera.

You have the option to freeze images in Full or Quad screen mode.
In Quad Screen mode : Press a channel button to freeze this channel in the Quad screen ;

press again to unfreeze;

In Full Screen mode : Press the current channel being viewed to freeze it; press again to unfreeze.

c) Scrolls LEFT / UP / DOWN / RIGHT in Menu mode.

These buttons are used to navigate through menu options.

d) MOVE / ZOOM / FOCUS in Pan / Tilt mode.

These buttons are used to arrow button on Pan / Tilt.

2. QUAD / ENTER BUTTON

a) QUAD : Pressing this button goes to Quad viewing mode.
b) ENTER : This button serves as the ENTER key in Menu mode.

3. PIP BUTTON

PIP allows you to view two camera locations simultaneously, one being the main channel, the other
being viewed as a sub-picture. Dual PIP can also be selected, which displays two sub-pictures as
illustrated below. To change between Single PIP and Dual PIP, repeatedly press the PIP button.

FRONT PANEL – FUNCTION BUTTON

PTZ/ALRS

BUTTON

EVENT

SEARCHPOP SEQ SETUP

PIP

QUAD/ENTER PTZ/ALRS

CH1 CH2 CH3 CH4

CHANNEL/ARROW

BUTTON

QUAD/ENTER BUTTON

PIP BUTTON

POP BUTTON

SEQ BUTTON

SETUP BUTTON

EVENT BUTTON

SEARCH BUTTON

SINGLE PIP

DUAL PIP

SINGLE PIPSINGLE PIP

DUAL PIPDUAL PIP

- 08 -

4. POP BUTTON

POP divides the screen into 4 screens, with the main channel occupying two-thirds of the screen.
To swap the positions of cameras appearing in POP ( Between the Main and Sub screen ), press this
button. To exit POP mode, press the other button.

5. SEQ BUTTON

Used to sequence between all camera locations in full screen in sequential order with the screen
automatically switching. Press SEQ again to stop sequential viewing. Sequence settings are
programmable via the Menu.

6. SETUP BUTTON

This button performs two functions:
a) A-SEL : In Quad mode, you can select the channel with audio. Pressing this button automatically

changes the audio from channel to channel. An audio microphone symbol will appear in the
corner of a Quad screen to indicate audio is available on a particular channel.

b) MENU : Holding this button for 3 seconds brings up the Main Menu.

7. EVENT BUTTON

Pressing this button brings up a list of up to 3000 Events, including Power, Loss and Alarms.
You can scroll through Events using the ▲ and ▼ keys, and navigate between Pages of Events using
the ◄ and ► keys. Press QUAD / ENTER Button to exit the Event list.

The following letters represent the different types of Events that you may find listed:

P : Shows the time when the POWER was turned ON
A : Shows the time when a PIR ALARM was triggered
M : Shows the time when Pixel-based MOTION detection was triggered
L : Shows when a Video LOSS from a Camera occurred
N : Starting time of storing data with Manual recording.
H : Time of problem occurring in HDD.

8. SEARCH BUTTON

Pressing this button brings up the Search menu, which allows you to quickly find recordings.

9. PTZ / ALRS BUTTON

a) PTZ : This button activates the Pan/Tilt feature.
b) ALRS : During an Alarm, this button will turn off the alarm sound and set the system to the previous

setting.

POP

MAIN

SUB SUB SUB

- 09 -

1. LED indicators - Status of operation.
a) REC : LED will be ON when recording data into the HDD.

b) TIMER : LED will be ON when the TIMER REC is set to ON.
c) PLAY : LED will be ON when playing data that has been stored into the HDD.
d) ALARM : LED will be ON when the ALARM or MOTION function is set to ON. When the ALARM

or MOTION function is detected, the LED will blink as an Alarm is being triggered.

e) HDD FULL : In case OVERWRITE menu is set up, LED does not blink in any case.

LED blinks if HDD is used below 1GB of storage space, and remains ON when
HDD is FULL.

2. REC BUTTON

Initiates manual recording..

3. REC STOP BUTTON

Press this button to stop in video recording.

4. PAUSE BUTTON

Press this button to pause video in playback.

5. REW BUTTON

Begins high-speed reverse playback during playback.

6. PLAY BUTTON

Initiates video Playback.

7. FF BUTTON

Begins high-speed forward playback during playback.

8. PLAY BUTTON

Initiates video Playback.

FRONT PANEL – DISPLAY BUTTON

FULL

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COPYSTOP

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LED

REC BUTTON

REC STOP BUTTON

PAUSE BUTTON

REW BUTTON

PLAY BUTTON

FF BUTTON

STOP BUTTON

COPY/WTMK BUTTON

SHUTTLE

REMOTE CONTROL

SENSOR

JOG

- 10 -

9. STOP BUTTON

Press this button to stop in video playback.

10. COPY / WTMK BUTTON

COPY : Back up stored data in HDD to USB memory key.

Note : If the USB Memory is not recognized or not working properly, please try

after formatting the USB Memory.

WTMK : Select the enable or disable of “Water Mark” while display.

Note : WTMK function

Watermarking is an identification code or bit pattern integrated into multimedia
data that aids copyright owners in identifying illegally distributed video, or
image data. The watermark will prove preservation of integrity as well as
chances of being manipulated for recorded images generated by DVR in terms
of the legal purpose or confidential use.
The watermark is usually visible by a detector chip or by special software.
Watermarking function in DHT series will assure you preventing from recorded
images being manipulated under any circumstances.

11. JOG

Jog dial to the right for forward frame-by-frame playback, or to the left for reverse frame-by-frame
playback.

12. SHUTTLE

You can select the playback speed for both forward and reverse by turning the shuttle
to the left or right.

13. REMOTE CONTROL SENSOR

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SETTING

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DISPLAY

- 12 -

OPEN

HDD

USB KEY

FRONT PANEL – USB & HDD