Mitsubishi DX-TL308E User manual

1
ENGLISHOTHERS
DIGITAL RECORDER
INSTALLATION MANUAL
MODEL
DX-TL308E
DX-TL304E
THIS INSTRUCTION MANUAL IS IMPORTANT TO YOU. PLEASE READ IT BEFORE USING YOUR DIGITAL RECORDER.

2
How to use this manual
About this manual
The manual of this recorder consists of the following two
manuals.
Installation Manual (this manual)
This manual describes connections of devices as well as
functional settings and operations to use this recorder.
This manual mainly describes operating procedures carried
out by the mouse.
User's Manual
This manual is for operators of this recorder and describes
the operating procedures for the basic functions only.
Symbols
Tips (Reference for operation)
Shows information to be referred to when you operate this
recorder.
Notice (Point to be noted)
Shows information to be noted when you operate this
recorder.
(Reference page)
Shows the sections and pages to be referred to.
Troubleshooting
See "Troubleshooting" ( pages 125 to 127) and take
appropriate measures.
Note
The illustration in this manual shows an example of DX-
TL308E.
How to locate information in this manual
You can find desired information in this manual using the
following methods.
Table of contents Pages 5 to 7
Reference page Shown in the texts.
How to locate setting items
When you first set up the recorder, you can configure the
minimum required settings using the Setup Wizard.
•Language setting
•Clock setting
•HDD operation setting
•Recording setting
When you configure these settings manually or configure
other settings, find desired functions and pages describing
those functions using the following methods.
Search based on the function you want to use
See the table of contents ( pages 5 to 7).
Search for the setting method for the connected device
See the reference pages shown by the descriptions of
the devices in "Connections" ( page 24).
Search based on the items displayed on the screen
See the reference pages shown by the descriptions of
the displayed items in "Screen display" ( page 22).
Search from the quick menu list
You can find the setup menus and recording setting
menus as well as their setting items in the quick menu
lists on pages 46 to 49 and pages 92 to 98.
In addition, you can find the factory default setting of
each setting item, too.
Using these lists, you can keep records of your settings
and review them later.
Before use

3
Beginning
ENGLISH
Setup procedure
1
4-1
2
4
3
6
4-2
5
Start here when you change
the settings of the
recorder already set up.
Start here when you first
set up the recorder.
Connect the recorder.
Connect the cameras, monitors, and sensors to the recorder. Configure the settings of the connected devices referring to the
reference pages shown in the descriptions of the devices in "Connections" on page 24.
Set the items shown above according to the displayed menus.
Turn on the recorder.
Turn on the main switch on the rear of the recorder. After checking the POWER indicator goes out, press the POWER button on
the front panel of the recorder.
Make the minimum required
settings manually.
Select whether or not to use the Setup Wizard.
Run the Setup Wizard.
When you turn on the recorder first time, the Setup Wizard is activated. "Setup Wizard" on pages 32 and 33.
Using the Setup Wizard, you can set the following items automatically according to the displayed menus.
Language setting
The language used for the menu screen is selected.
Clock setting
HDD configuration
All the connected HDDs are registered as Main device. For details of the HDD configuration, see pages 34 to 37.
Recording setting
The settings for normal recording are configured. For details of the recording, see pages 44 to 55.
Change the settings made by the
Setup Wizard.
To manually change the settings made by the Setup Wizard:
Language setting
Clock setting
HDD configuration
Recording setup
When using the
Setup Wizard
When not using the
Setup Wizard
(To change the
settings made by
the Setup Wizard)
As
needed
As
needed
Make other settings.
Make the necessary settings according to your desired recording operation.
For example,
To carry out timer recording. Timer program setting pages 62 to 65
To use the mirroring mode. Mirroring setting page 35
To control the recorder from the personal computer. Communication setting pages 108 and 109
To control the camera. PTZ camera setting page 110
To restrict the recorder's functions by the password lock. Password setting pages 111 to 114
To make settings of screen display and rear terminals. "Setup menu" on pages 92 to 110.
Check the setup condition.
By executing recording, playback, search, and copy, check that the recorder has been set up correctly.
How to search for necessary settings
Refer to "How to locate setting items" on the left
page, and find the pages describing the
functions and settings you want to use and
configure the necessary settings.
Page 99
Page 99
Pages 44 to 55
Pages 34 to 37
Language setting
Clock setting
HDD configuration
Recording setup
Page 99
Page 99
Pages 44 to 55
Pages 34 to 37

4
This digital recorder is able to record images captured by up to 8 (DX-TL308E)/4 (DX-TL304E) surveillance cameras and
audio received by microphone to its hard disk. The recorder is equipped with the function to search for desired scenes by
specifying the recording dates as well as the simultaneous recording/playback function that allows playback even during
recording. In addition, using the split display function to display up to 8 (DX-TL308E)/4 (DX-TL304E) camera images on one
screen, you can view more than one monitored area at the same time. This recorder facilitates to configure a monitoring
system for constant surveillance.
Realizing long-term recording
By reducing the size of recorded video data using the newly developed video compression engine (MEPG 4 system), the
writing capacity of HDD can be saved about 50% (compared with our conventional models). In addition, this recorder is
designed to connect external HDD to expand its HDD capacity up to 16 TB (when using optionally available DX-ZD6UE). Due
to this, you can construct a long-term recording system to store data for 2 years, for example.
Simple operation and USB mouse connectable
By connecting a separately available USB mouse to the serial bus terminal on the recorder, you can easily control the
recorder and setting menus. For frequently used functions such as search and copy, the simple operation menu allows you
to operate them by simple procedure. This recorder is equipped with the on-screen help function. By clicking the help icon or
pressing the HELP button, you can view various information such as operation procedures on the screen.
"One touch copy" for easy copying with one button press
The recorder is equipped with the function to copy still playback images to a USB memory device set in the recorder or a
disc in an external drive with one button press. You can select still images or moving images to copy. When selecting moving
images, you can specify the recording duration.
XGA output terminal integrated (DX-TL308E only)
You can connect a general PC display monitor to this terminal to use it as a surveillance monitor.
Motion detection search function
By designating certain areas such as doors and windows shown in recorded images as detection target areas, you can
search for recorded data containing scenes having variation (or motion) in those areas and display the beginning of such
data. This function is useful, for example, in searching for intruders into deserted places or scenes where someone painted
graffiti on the wall.
Personal information protection function
By setting passwords, you can classify the recorder operations into 3 levels. You can set a password for deleting data from
HDD to protect them from unauthorized access or to use this function as misuse prevention. The recorder is equipped with
the function to prohibit playback of data recorded before the number of days you specify (auto expiration setting), which
facilitates data management according to your operation standard regarding the data storage period.
Alarm notification of intrusion and system errors
When an alarm signal is input to the recorder from external body sensors or when an error is detected in the system,
the recorder notifies the designated personal computer via TCP/IP command or e-mail. The recorder is also capable of
transferring the alarm-recorded images that is triggered by an external alarm signal to the designated FTP server.
Microsoft is either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other
countries.
All other company and product names appearing herein are the property of their respective owners.
Major features

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Beginning
ENGLISH
Contents
Beginning
Before use......................................................................2
How to use this manual ..............................................2
About this manual ....................................................2
Symbols ...................................................................2
Troubleshooting .......................................................2
Note ........................................................................2
How to locate information in this manual .................2
How to locate setting items ................................2
Setup procedure............................................................3
Major features................................................................4
Contents.........................................................................5
Caution and care ...........................................................8
Note ..............................................................................15
Open source software...............................................15
MPEG-4 patent ...........................................................15
Major operations and their functions ........................ 16
Front view...................................................................16
Front view (inside of door) .......................................18
Rear view....................................................................20
Screen display ...........................................................22
Connections
Connections.................................................................24
Connecting CCTV cameras, monitors, and sensors
.........................................................................24
Connection for alarm recording...............................25
Cable clamping ..........................................................26
Connecting an analog VCR ......................................26
Optional products......................................................27
Recommended products ..........................................27
Caution for connecting additional hard disk units
.........................................................................27
Menu settings/Device registration
How to set the menus .................................................28
Displaying the menus ...............................................28
Operating the menus.................................................29
Closing the menus ....................................................29
Using the mouse operation screen..........................30
Using the Setup Wizard ..............................................32
Making the minimum required settings automatically
<Setup Wizard>.......................................................32
Registering the devices .............................................. 34
Setting Main, Copy, and Archive devices
<HDD registration> ................................................34
Cautions for using external devices .................34
Hookup and operation setting of HDDs............34
Order of recording and playback of the internal
and external HDDs registered as Main device
....................................................................34
Registering the internal HDDs ...............................35
Mirroring ...........................................................35
Registering external HDDs ....................................36
Checking the registered devices............................37
Setting the repeat recording and partition of Main
device <Main HDD setting>......................................38
Setting the repeat recording...................................38
Setting the partition................................................39
Viewing images
Viewing images captured by the cameras ..................40
Multiplexer function...................................................40
Single screen display.............................................40
Split screen display................................................40
Sequential display..................................................40
Switching Output A and B ......................................41
Operating the DIGITAL ZOOM button....................41
Triplex playback .....................................................42
Controlling the cameras ............................................. 43
Controlling the cameras using the menus..............43
Recording
Recording ....................................................................44
Recording methods...................................................44
Recording types.........................................................44
Before making recording settings ...........................45
Playback during recording .....................................45
Procedure of configuration of recording settings..46
Making recording settings automatically <Auto setting>
.........................................................................50
Camera check ..................................................50
Define the normal recording cycle....................50
Confirm the recording settings .........................50
Apply new settings ...........................................50
Making recording settings manually <Manual setting>
.........................................................................51
Recording A to D....................................................51
Picture size.......................................................51
Picture quality and FPS....................................52
Alarm camera setting .......................................53
Alarm input/output ............................................54
Supplementary explanations on recording settings
....................................................................54
Supplementary explanations on preliminary
recording.....................................................55
Emergency recording settings <EMR recording>............56
Supplementary explanations on emergency
recording.....................................................57
Motion detection settings <Motion detection> ..................58
Cautions on motion detection setting ...............59
Audio recording settings <Audio recording> ....................60
Stopping alarm input.................................................61
Manual recording.......................................................61
Before starting manual recording .....................61

6
Contents (continued)
Timer recording settings <Timer program>......................62
When timer programs overlap ..........................65
Playback
Playback....................................................................... 66
Selecting the playback device <Device selection>...........66
Playing back recorded data......................................66
Search
Searching for images you want to view ....................68
Searching for the oldest recorded data
<Start point search> ..................................................68
Searching for the latest recorded data
<End point search>...................................................68
Setting the searching conditions.............................69
Searching images based on the designated
data and time <Time date search> ..........................70
Searching from the alarm list <Alarm list search> ............70
Copying images registered in the alarm list .....71
Searching for images with motion <MD search> ..........72
Searching for images using various playback functions .. 73
Forward/rewind playback.......................................73
Frame-by-frame playback......................................73
Reverse playback ..................................................73
Changing the playback rate ...................................73
Playing back the latest recorded image.................73
Caution in various playback functions ..............73
Searching for bookmarked images ...........................74
Registering a bookmark............................................74
Searching for bookmarked images..........................74
Copy
Copying recorded data ............................................... 75
One-touch copy .........................................................75
Copying data by specifying the copy range ...........75
Setting the copy conditions....................................75
Copying data by specifying the start time and
data size...........................................................76
Copying data by specifying the end time and
data size...........................................................76
Copying data by specifying the start time and
end time ...........................................................77
Caution in copying data....................................77
Archiving data............................................................78
Copying data from the recorded to videotape........79
Communication
Using the communication functions ......................... 80
Communication functions of this recorder.............80
Restrictions on network users................................80
Bandwidth control ..................................................80
Cautions in communicating by the Web browser or
PC viewing/communication software ...............80
Cautions regarding the same setting items
displayed on multiple screens ..........................80
Communication by Web browser.............................80
PC system requirements........................................80
Connections...........................................................81
Login .....................................................................81
Notes on the Main Menu ..................................81
Viewing live images ...............................................82
Playing back recorded images...............................83
Searching recorded images...................................83
Searching for images by designating date and
time.............................................................83
Searching for images using the alarm list ........83
Setting the Main Menu...........................................84
Changing user settings.....................................84
Setting the titles of the recorder and cameras..85
E-mail setup......................................................86
FTP notification setup.......................................88
Connection mode setup ...................................89
Clock setup.......................................................90
Logout....................................................................90
E-mail notification......................................................91
FTP notification..........................................................91
Communication by the viewing/communication
software ..........................................................91
Others
Various settings...........................................................92
How to display the Setup menu .............................92
Quick reference chart for the Setup menu.............92
How to use the quick reference chart for the
Setup menu ................................................92
Settings of the present time and menu language
<Clock and language> ...............................................99
Clock setting.....................................................99
Language setting..............................................99
Settings related to the warning display and rear
terminals <Warning display · EXT terminal setting> .........99
Warning display · Buzzer · Call-out 1.....................99
Remain .............................................................99
Button sound ..................................................100
Start alarm recording......................................100
Communication ..............................................100
Warning display • Buzzer • Call-out 2 ..................100
Mode-out • Remaining capacity ...........................101
Mode-out 1 and 2 ...........................................101
Remain 1 and 2 ..............................................101
Event terminal......................................................102
On-screen display settings <Information display setting>
.......................................................................102
Clock display mode and location .........................102
Recorder status and title display..........................102
Camera number and title display .........................103
Use the transparent menu ...................................103
Multiplexer settings <Multiplexer setting> ........................104
Output A/Output B................................................104
Copy Output A settings...................................104
4-split and 9-split ............................................104
Sequential display ..........................................104

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Beginning
ENGLISH
Alarm display .......................................................104
Covert camera .....................................................105
XGA output (DX-TL308E only).............................105
Settings related to playback
<Setting the playback functions>..................................105
Activate repeat playback ................................105
Display a playback image in field ...................106
Image originality check play ...........................106
Auto expiration on the specified date .............106
Settings related to the menus
<Loading/saving/initializing the menu settings>..................107
Loading the menu settings .............................107
Save the menu settings..................................107
Initialize the menu settings .............................107
Settings related to communication
<Communication setting>..........................................108
RS-232C setting...................................................108
LAN setting .........................................................108
LAN service port settings ...............................108
E-mail notification - Address setting ...............108
IP alarm notification - Address setting ............109
FTP transmission settings ..............................109
PTZ camera setting..............................................110
Restricting the operations of the recorder .................. 111
Simple lock............................................................... 111
Enabling the simple lock................................. 111
Disabling the simple lock................................ 111
Password lock.......................................................... 111
Registering a password .......................................112
Enabling the password lock .................................112
Disabling the password lock ................................112
Password for restricting operations
(Levels 1 to 3)...........................................112
Password lock for HDD protection .................113
Changing a password ..........................................113
Password for restricting operations
(Levels 1 to 3)...........................................113
Password for HDD protection.........................113
Changing the lock mode from the password lock
to simple lock .................................................114
Changing the operation restriction level...............114
Protecting recorded data.......................................... 115
Protecting recorded data ........................................115
Checking the protected data ..................................115
Disabling data protection........................................115
Deleting recorded data ............................................. 116
Deleting recorded data............................................116
Reducing the load on the HDD................................. 117
Stopping the rotation of HDD that is not in use for
recording <HDD sleep mode> ...............................117
Displaying the device information........................... 118
Checking the registered devices and
recorded data area .......................................118
Displaying the <Device information> screen........118
Displaying the Main device information ...............118
Displaying the Copy device information...............118
Displaying the Archive device information ...........118
Displaying the system log ........................................ 119
Displaying the system log ......................................119
Function against power failure ................................ 120
Power failure compensation circuit ......................120
Power failure recovery recording .........................120
Record of turning-off of the MAIN switch on the
rear panel .......................................................120
RESET button ......................................................120
Operation examples
Operation examples ..................................................121
Operation example 1 ...............................................121
Operation example 2 ...............................................122
Operation example 3 ...............................................123
Troubleshooting
Troubleshooting ........................................................124
Checking the status of the recorder <Self-check function>
.......................................................................124
Error indications......................................................128
Warning indication and call-out signal output ..128
Glossary/Specifications
Glossary .....................................................................132
Specifications ............................................................133

8
HEAVY OBJECTS SHOULD NEVER BE PLACED ON THE UNIT (E.G., MONITOR)
NEVER TOUCH OR INSERT ANY OBJECT INSIDE THE UNIT
Touching the inside of the cabinet or inserting foreign objects of any kind through ventilation holes not only creates a safety
hazard but can also cause extensive damage.
PROTECT THE POWER CORD
Damage to the power cord may cause fire or shock hazard. If the power cord is damaged, turn OFF the MAIN switch and
carefully unplug the cord by holding the main plug.
If this unit is moved with the power on status, the built-in HDD may be damaged. Confirm that more than one minute have
passed since the power cord and the connecting cords were disconnected, then move this unit.
UNPLUG THE POWER CORD DURING A LONG ABSENCE
Turn off the power and unplug the power cord during a long absence.
MAINTAIN GOOD VENTILATION
Do not obstruct the many ventilation holes on the unit. For maximum ventilation, leave some space around the unit and place
the unit on a hard level surface only, and ensure it is not covered during use. Heavy objects should never be placed on the
unit.
WHEN NOT IN USE
When not in use, always turn OFF the MAIN switch.
CABINET CARE
Never use petroleum-based cleaners. Clean with a soft cloth moistened with soap and water and wipe dry.
PVC cables or leads should not be left in contact with the cabinet surface for long periods.
INSTALLATION LOCATION
For excellent performance and lasting reliability install in a location that is:-
1. Well ventilated, out of direct sunlight and away from direct heat.
2. A solid vibration-free surface.
3. Free from high humidity, excessive dust and away from magnetic fields.
4. Please ensure that the ventilation fan located on the unit’s back panel is not blocked.
UNSUITABLE LOCATIONS
Placing the unit in the following places might shorten the product life:
• Extremely cold places, such as refrigerated warehouses and ice houses
• Places where excessive hydrogen sulfide is likely to be generated, such as hot-springs areas
• Places or locations with salt air environment.
THIS EQUIPMENT DOES NOT PROVIDE CONNECTION FOR USED WITH OUTDOOR OR CABLE DISTRIBUTION
SYSTEMS.
NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHALL BE PLACED ON THE APPARATUS.
DO NOT PLACE HEAVY OBJECT ON THIS UNIT.
DO NOT STEP ONTO THIS UNIT.
The unit may drop or fall by losing its balance. It may cause injury or failure of the unit.
WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
THIS APPARATUS MUST BE GROUNDED.
MAINS LEAD CONNECTION
The mains lead on this Unit is fitted with a non-rewireable mains plug, incorporating a 5A fuse. If you need to replace the
fuse, use a 5A fuse approved by BSI or ASTA to BS 1362, ensuring you refit the fuse cover. If the mains plug is not suit-
able for the sockets in your home, and you require to remove the plug, remove the fuse, cut off the plug then dispose of
the plug immediately, to avoid a possible electric shock hazard. To refit a new plug, follow these instructions; Green-and-
yellow: Earth, Blue: Neutral and Brown: Live. As the colours in the mains lead of this Unit may not correspond with the
coloured markings identifying the terminals in your plug, proceed as follows.
•The wire which is coloured green-and-yellow must be connected to the terminal in the plug which is marked by the
letter E or by the safety earth symbol or coloured green or green-and-yellow.
•The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured
black.
•The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red.
Caution and care

9
Beginning
ENGLISH
This unit complies with the requirements of the EC Directive 2004/108/EC, “EMC Directive” and 2006/95/EC, “Low Volt-
age Directive”. The requirements for the susceptibility according to EN 55024 and the requirements for interference ac-
cording to EN 55022 are observed for the operation on residential areas, business, light industrial premises and in small
scale enterprises, inside as well as outside of the building. All places of operation are characterised by their connection
to the public low voltage power supply system. This unit is manufactured in accordance with EN 60950-1.
Warning
This is a class A product. In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
Note: This symbol mark is for EU countries only.
This symbol mark is according to the directive 2002/96/EC Article 10 Information for users and Annex IV,
and/or to the directive 2006/66/EC Article 20 Information for end-users and Annex II.
Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components which
can be recycled and/or reused.
This symbol means that electrical and electronic equipment, batteries and accumulators, at their end-of-life, should be
disposed of separately from your household waste.
If a chemical symbol is printed beneath the symbol shown above, this chemical symbol means that the battery or
accumulator contains a heavy metal at a certain concentration. This will be indicated as follows:
Hg: mercury (0,0005%), Cd: cadmium (0,002%), Pb: lead (0,004%)
In the European Union there are separate collection systems for used electrical and electronic products, batteries and
accumulators.
Please, dispose of this equipment, batteries and accumulators correctly at your local community waste collection/
recycling centre.
Please, help us to conserve the environment we live in!
About the hard disk drive (HDD)
•This unit is equipped with HDD, which is a very delicate device. Therefore, handle this unit carefully.
•Don't expose this unit to vibrations and shocks. It may be damaged when exposed to vibrations and shocks especially
during power-on or access to the HDD.
•Don't unplug the power cord during recording/playback or power-on.
•This unit is equipped with a system that automatically resumes and continues recording in the event of a minor failure
in the HDD or other components during recording. However, depending on the type of a failure in the HDD, this unit
may not able to continue recording. For early detection of failures, it is recommended to have this unit inspected every
year.
•In the event of a fault in the HDD, replace it immediately. For replacement of the HDD, please contact your Mitsubishi
dealer. (To replace the HDD, it is required to stop recording.)
•Use recommended HDD only. For HDD supported by this unit, please contact your Mitsubishi dealer.
•When the HDD is replaced, the recorded data are deleted. To ensure stable operation of this unit, the firmware may be
updated from time to time. The recorded data may be deleted in such a case.
•When you dispose of or transfer this unit, handle the video data stored in HDD carefully and take all responsibilities
related to the disposal or transfer.
•In the event of a failure in the HDD during normal recording or mirroring, this unit may not be able to resume recording
after rebooted, depending on the failure condition.
•When you enable the mirroring function while the recorded data are stored in the HDD, the recorded data are deleted.
•When you delete the data, the recorded images cannot be played back any more.
•It is recommended to check regularly that the recorded data are played back correctly.

10
Installation location and handling
•Before you first use this unit, supply power to it for at least 48 hours to charge the built-in backup battery so that the
built-in power compensator circuit can be activated. When the battery isn't charged sufficiently, the built-in clock may
go wrong or the unit may not able to recover in case of a power failure.
•Don't plug this unit and high current devices (such as copier and air conditioning) into the same wall socket.
•Place this unit on a level and stable surface. When it is used on an unstable surface, a failure may be caused.
•Don't remove the outer covering of this unit.
•Don't place this unit close to other devices. They may interfere with each other, disturbing video and audio.
•Don't place this unit on a heat source. In addition, don't place this unit near a hear source because this unit has
ventilation openings in its sides and bottom. Otherwise the inside temperature may rise, causing a failure.
•When this unit is placed on or under the monitor, a failure may be caused, such as image disturbance.
•Don't place a strong magnetic object near this unit. It may affect the images adversely and cause loss of recorded
data.
•Don't expose this unit to volatile substances such as insecticide or don't leave this unit in contact with rubber or plastic
products for a long time. Otherwise the surface of the product may deteriorate or the coating may come off.
•When this unit is placed directly on the waxed floor, the adhesion may increase between the floor and the non-slip
rubber pads on the bottom of the product, causing the floor coating to come off or be colored.
•The HDD and cooling fans are motor-driven parts. To ensure stable recording, it is recommended to replace them
every 30,000 hours of use as a guide assuming that the ambient operating temperature is 25°C. When replacing HDD,
also replace the vibration-proof rubbers at the screwed areas. (Note that this period is just for a guide of replacement
interval and isn't intended to guarantee the lifetime of the parts. They may be broken earlier because of shocks applied
to the product and ambient operating temperature.)
•Be sure to use this unit within the allowable ambient temperature range (5° to 40°C) and humidity range (80% or less).
When you use the unit out of this temperature range, the internal parts may be adversely affected or a malfunction may
occur. In addition, when the temperature rises high, the characteristics of the HDD may deteriorate or its lifetime may
be shortened. When you use the unit in a low temperature environment, supply it with power for at least 10 minutes
before use.
•Clean the product regularly to prevent the ventilation openings from being covered by dust.
Caution and care (continued)

11
Beginning
ENGLISH
Precautions for rack-mounting
•When mounting this unit in a rack, ensure that the temperature inside the rack doesn't rise to 40°C or higher. When
installing a rack, you are recommended to install fans to keep the temperature inside the rack 30°C or lower.
•Don't install a device that becomes hot under this unit. Otherwise the inside temperature may rise, causing a failure.
•Don't give a shock to all HDD devices in the rack.
•Before taking this unit in or out of the rack, be sure to turn off HDD devices being energized in the rack.
•Don't place this unit near a device that generates vibrations.
Changing installation location
•When moving this unit, be sure to turn off the MAIN switch, make sure that the unit is completely stopped, and then
unplug the power cord. When this unit is exposed to excessive shock while being energized, the internal electronic
parts or HDD may be damaged. Be careful especially while the power indicator or access indicator is blinking.
•Don't move this unit for at least one minute after you turn off the power. Even after the power is turned off, the disc
in the HDD keeps rotating by inertia for a while and the head is in an unstable state. This unit in such state is more
vulnerable to vibrations and shocks than while being energized. Be careful not to give this unit even a slight shock for
at least one minute after turning off the power. Wait at least one minute for the disc to stop, and then you can move the
product.
•When moving this unit, cover it with shock absorbers to prevent shocks to the inside.
•When placing this unit on a floor, lay it gently on a soft mat or cloth.
Maintenance
•Gently wipe dirt off the cabinet with a soft cloth.
•When dirt persists, clean it off using a cloth soaked in water-diluted neutral detergent and wrung well and then wipe
dry.
•When using a chemical cleaning cloth, follow its instructions.
•Don't use solvent such as benzene and thinner. Otherwise the surface of the product may deteriorate or the coating
may come off.

12
Notes for constructing a surveillance system using this unit
•This unit can be controlled by external devices via the external connector, RS-232C connector, or LAN connector.
In addition, external devices can be controlled via the external connector, RS422 connector, or RS-232C connector.
These functions allow this unit to flexibly support an advanced security system. However, depending on the settings
of this unit or connection or combination with external devices, this unit or externally connected devices may operate
wrongly, causing adverse effects on the entire surveillance system.
•When constructing a surveillance system using this unit, you are recommended to check its operation by connecting or
combining it with other devices in advance.
•Don't use the alarm function of this unit for the purpose of making serious decisions or for applications involving human
lives.
•When this unit becomes unable to recognize an external device in recording because of a power failure, voltage drop,
or other failure, the recording point may move to the HDD inside this unit or other HDD. To prevent such symptom, it is
recommended to use an uninterrupted power supply or other similar device.
•When you unplug the power cord or turn off the breaker during recording, the HDD may be broken or recorded data
may become unable to be played back. When you turn on and off the breaker every day, program the timer recording
to be performed while the breaker is on and don't turn off the breaker during recording.
•When the user or any third party uses external devices wrongly, or external devices are affected by electric noise or
they are damaged or repaired, the saved data may be lost. Mitsubishi doesn't take any responsibility for damages
related to such data loss.
•By connecting various external HDDs to this unit, you can expand the memory or use them as a copy device. However,
when you perform recording, playback, or copy at a high rate using this unit, recording or playback data dropout or
other failure may occur depending on the connected device because of slow data transfer or slow response. Be sure to
check for such failure before starting the practical operation of the unit.
•Don't use the function to control the powers of external devices using the bus power of this unit.
•External devices you want to use may not be suitable for the intended application of this unit. For details, you are
recommended to contact your Mitsubishi dealer.
•When connecting external devices, be sure to secure the connected cables using the supplied clamp bands. When the
cables are disconnected or not connected firmly, the system may become unstable or images may not be recorded.
•Don't disconnect the cables while this unit is running. Otherwise a failure may be caused.
For important recordings
•Be sure to perform test recording before starting the practical operation of this unit, and also check regularly that the
recording is performed correctly according to the settings during the practical operation.
•Mitsubishi doesn't compensate for data not recorded or not played back correctly because of a failure occurring in this
unit or connected devices during the use of this unit.
•As a preparation for unexpected breakdown or accident, you are recommended to make regular backups of important
recordings. Though digital signals don't deteriorate, playback or recording may become impossible because of aging
deterioration of discs depending on the storage conditions.
Caution and care (continued)

13
Beginning
ENGLISH
Motion detection function
•Motion detection function in this unit may malfunction depending on the input condition of the video signal. If you
connect this unit to a system that issues an alarm using the motion detection function, take care to avoid such
malfunction. When the motion detection function malfunctions, connect another sensor to the ALARM IN terminal on
the rear of this unit.
Recording time and product warranty
•Estimated recording time displayed on the menu screen is a continuous recordable time calculated in terms of the
functional operation, not a product warranty period. In addition, they are not a warranty period of the operational
reliability of the parts and components used in the unit.
Supplied power cord
•The supplied power cord is designed for this unit only. Don't use this cord for other products.
Network
•It is recommended to confirm with your network administrator about the network settings in advance.
•As this unit is operated through network, you may suffer from damage as follows.
(1) Leakage or drain of information through this unit.
(2) Unauthorized operation of this unit by malicious third parties.
(3) Disturbance or deactivation of this unit by malicious third parties.
To prevent damage listed above, take sufficient network security measures on your own responsibility.
•Set a network password that cannot be easily guessed by third parties. In addition, change the password regularly.
Copyright
•This unit records data digitally. Therefore, exercise caution in recording video images protected by copyright.

14
Disclaimer
•Mitsubishi assumes no responsibility or makes no compensation for operation error of your surveillance system, loss
of recorded data, or other damages or losses due to a failure in this unit. In no event will Mitsubishi repair, restore, or
reproduce recorded data.
•In no event will Mitsubishi assume responsibility or liability for the following:
(1) Disassembly, repair, or alteration of this unit by the user or installer.
(2) Failure or breakdown in or damage to this unit resulting from misuse or careless handling by the user or installer.
(3) Inconvenience or damages resulting from inability to display or record images or to operate the unit's functions
correctly due to any reason or cause including breakdown or failure in this unit.
(4) Failure in this unit due to combination with other equipment manufactured by a third party, or inconvenience or
damages resulting from such failure.
(5) Inconvenience, damages, or claims arising out of breakdown in this unit or loss of recorded video data due to
replacement of the built-in HDD by the user or installer.
(6) Inconvenience or damages arising out of breakdown in this unit or inability to display or record images due to
natural disaster including earthquake and storm.
(7) Inconvenience, damages, or claims arising out of breakdown in the built-in HDD or loss of recorded video data due
to impact or vibration or environmental factors such as temperature at the installation site.
(8) Demand for damages or claim of infringement of privacy on the ground that the video monitored or recorded by
the user become public or are used for any purpose other than surveillance for whatever reason.
(9) Incidental, special, or consequential damages arising directly or indirectly related to this unit.
(10) Failure caused by any program created based on the command data provided by Mitsubishi, or inconvenience,
damages, or losses resulting from such failure.
•This unit is intended for recording and playback of video monitored by cameras. Mitsubishi doesn't assure that this unit
is capable of preventing crimes.
Caution and care (continued)

15
Beginning
ENGLISH
Note
Open source software
Thank you for purchasing Mitsubishi digital recorder DX-TL308E/DX-TL304E (hereinafter referred to as “Product”). Before
using this Product, please be sure to read the Software License Agreement on page 11 of the user's manual with regard
to the software contained in this Product (hereinafter referred to as “Licensed Software”). By using this Product, you are
agreeing to be bound by the terms and conditions of the following Software License Agreement.
This Product contains software programs that are covered by GNU General Public License or GNU Lesser General Public
License. Such software programs are excluded from Licensed Software and not covered by the following Software License
Agreement. For the terms and conditions for use of the software programs covered by GNU General Public License or GNU
Lesser General Public License, please see “Notice about software to which GNU GPL/LGPL is applied”*.
In addition, this Product contains “Apache” and “OpenSSL (including “Original SSLeay” library).” These software programs
are also excluded from Licensed Software and not covered by the following Software License Agreement. For the terms and
conditions for use of these software programs, please see “Notice about Apache software”* and “Notice about OpenSSL soft-
ware”*.
Other open source software contained in this product is excluded from Licensed Software and not covered by the following
Software License Agreement. For the terms and conditions for use of these software programs, please see “Notice about
other open source software”*.
* The documents of “Notice about software to which GNU GPL/LGPL is applied,” “Notice about Apache software,” “Notice
about OpenSSL software,” and “Notice about other open source software” are contained (in the format of electronic
files as notice_GPL_LGPL_ja.pdf, notice_Apache_ja.pdf, notice_OpenSSL_ja.pdf, and notice_other_ja.pdf) in the
“OpenSoft_License” folder in the CD supplied with this Product.
MPEG-4 patent
This Product is licensed under the MPEG-4 pool license only for the purpose of personal and non-commercial use involving
the following activities:
(1) Encoding video in compliance with the MPEG-4 visual standard ("MPEG-4 Video").
(2) Decoding MPEG-4 Video that was encoded by a consumer engaged in a personal and non-commercial activity and/or
was obtained from a video provider licensed by MPEG LA to provide MPEG-4 Video. For more information, visit http://
www.mpegla.com.
(3) Playback of video recorded by the recorder using a personal computer in which the PC viewing/communication software
or the OCX software for Web browser is installed, or playback of video recorded by the recorder using a Web browser.

16
Front view
1 POWER indicator
When the POWER button is pressed while the MAIN
switch on the rear of this recorder is ON, this indicator
illuminates. When this recorder is in the standby status
or the MAIN switch on the rear of this recorder is OFF,
this indicator goes out. It takes about 1 to 2 minutes
for this recorder to be ready for operation after the
POWER button is pressed. When this recorder is in the
process of operation transition such as startup, this in-
dicator blinks and other operations are not acceptable.
2 ACCESS indicators (HDD A, HDD B indica-
tors)
This indicator illuminates when this recorder is access-
ing the internal HDD or externally connected devices.
Before pressing the POWER button, wait until the indi-
cator goes out.
3 COM (COMMUNICATION) indicator
This indicator illuminates when this recorder starts
communicating via LAN.
4 OUTPUT A/B indicator
This indicator goes out when the multiplexer output A
is selected and it illuminates when B is selected.
5 SPLIT button
When this button is pressed, the screen mode changes
to split display mode.
OUTPUT A/B button
When this button is held down for 2 seconds or longer,
the multiplexer output is switched between A and B.
The OUTPUT A/B indicator goes out when A is se-
lected and it illuminates when B is selected. While the
multiplexer output B is selected, the menus are not
displayed.
6 <DX-TL308E> Camera number buttons (1 to 8)
<DX-TL304E> Camera number buttons (1 to 4)
Press these buttons to display images from the cam-
eras connected to this recorder. The number of button
corresponds to that of the CAMERA IN connector on
the rear of this recorder. The button corresponding to
the camera you are viewing illuminates.
Number buttons (0 to 9)
Press these buttons to input passwords.
7 SEQUENCE button
Press this button to automatically switch images from
cameras.
8 REC indicator
This indicator illuminates when this recorder starts re-
cording. It goes out when the recorder stops recording.
9 ALARM REC indicator
This indicator blinks when this recorder starts alarm
recording. It goes out when the recorder stops alarm
recording.
Major operations and their functions
1 2 3
13
* This illustration shows an example of DX-TL308E
12
4 5 6 7 8 9 10 11

17
Beginning
ENGLISH
10 TIMER indicator
This indicator illuminates while this recorder is in the
timer recording mode or timer recording standby mode.
It blinks when an error is found in the timer program.
11 LOCK indicator
This indicator illuminates while the simple lock or the
password lock is enabled.
12 SERIAL BUS ports
Input and output ports to connect a device equipped
with serial bus terminal. Bus power cannot be used.
When the serial bus ports are not in use, attach the
serial bus port covers to keep dust from entering the
recorder.
13 ALERT indicator
This indicator blinks when the recorder notifies an im-
portant event such as an error occurring in it.

18
14 POWER button
The power is turned on when this button is pressed
while the MAIN switch on the rear is ON. When this
button is pressed again, this recorder enters the
standby mode. When this recorder is in the process of
operation transition such as startup, the POWER indi-
cator blinks and other operations are not acceptable.
15 Analog output connectors
VIDEO OUT connector
RCA connector to output video signals. The same im-
age as that from OUTPUT A is output.
AUDIO OUTPUT connector
RCA connector to output audio signals.
16 SET UP button
When this button is pressed, <Main menu> is dis-
played.
17 EXIT/CANCEL button
This button is used to set the menus.
18 Direction buttons (UP, DOWN, LEFT, RIGHT
buttons)
Use these buttons to move the item to be set during
menu setting.
These buttons are also used to move the magnification
center point while enlarging an image.
FRAME buttons
Use these buttons for frame-by-frame playback.
REW, FF buttons
Use these buttons to adjust the playback speed, and to
rewind or forward the recorded images.
ENTER button
This button is used to designate the detection target
areas of the motion detection function.
It is also used to accept the menu settings.
19 NEXT/START button
This button is used to set the menus.
20 BOOK MARK button
When this button is pressed, <Bookmark menu> is
displayed. When the playback device is designated
as Copy device, Archive device, or preliminary area,
<Bookmark menu> is not displayed. ( Page 74)
21 TRIPLEX PB button
When this button is pressed while live images from
cameras are being displayed in the split display mode,
the playback image of your desired camera is dis-
played. Triplex playback is possible with Output A only.
DIGITAL ZOOM button
When this button is pressed in the single screen dis-
play mode or the single screen playback mode, the
displayed image is enlarged. To move the magnifica-
tion center point, press the direction buttons.
Front view (inside of door)
Major operations and their functions (continued)
25 26 27 28
14 15 16 17 1918 20 21 22 23 24
* This illustration shows an example of DX-TL308E.

19
Beginning
ENGLISH
22 REC/STOP button
When this button is pressed, this recorder starts re-
cording and the REC indicator illuminates. When this
button is held down for 2 seconds or longer, this re-
corder stops recording and the REC indicator goes out.
When this button is held down for 2 seconds or longer
during alarm recording or emergency recording, this
recorder stops recording. This recorder does not stop
recording during timer recording even when this button
is held down.
23 TIMER button
When this button is pressed, this recorder enters the
timer recording mode or standby mode and the TIMER
indicator illuminates. When this button is held down
for 2 seconds or longer, the timer recording mode or
standby mode is canceled and the TIMER indicator
goes out.
24 LOCK button
When this button is pressed while the MAIN switch on
the rear is ON, this recorder enters the simple lock or
password lock mode. While this recorder is locked,
the indicator illuminates. You can set passwords using
<Password> of <Main menu>. ( Pages 111 to 114)
25 COPY button
When this button is pressed, <Copy menu> is dis-
played. Use this button to copy or archive data.
(Pages 75 to 78)
This button illuminates during copy. It blinks at the start
and end of copy operation.
26 SEARCH button
When this button is pressed, <Search menu> is dis-
played. Use this button to search images. ( Pages
68 to 72)
27 HELP button
When this button is pressed, the help menu showing
information such as cautions on use, operating proce-
dures, and functional descriptions is displayed.
It is also used to display the warning.
WARNING RESET button
When this button is pressed while a warning is dis-
played, the warning display is cleared.
28 Operation buttons
STOP button
Press this button to stop playback.
PAUSE/JUMP TO END button
When this button is pressed during playback, still im-
age playback starts and the button illuminates. When
this button is pressed again, playback starts and the
button goes out.
When the PAUSE/JUMP TO END button is pressed
while the playback is stopped, images around the end
of the latest recorded data are played back in the still
image playback mode. (End point search)
REV.PLAY button
When this button is pressed, this recorder starts re-
verse playback and the button illuminates.
PLAY button
When this button is pressed, this recorder starts play-
back and the button illuminates.
SPEED (+ and -) buttons
When the playback (+) button or reverse playback (-)
button is pressed during playback or reverse playback,
the playback rate is changed.

20
1 MAIN switch
This is the main power switch. To use this recorder, set
this switch to ON. Otherwise, the POWER button on
the front panel of the recorder cannot turn on or off the
recorder.
2 <DX-TL308E> CAMERA connectors (1 to 8)
<DX-TL304E> CAMERA connectors (1 to 4)
Notice
• Do not connect superimposed voltage cameras
because they can cause damage to the recorder.
CAMERA IN connectors
BNC connectors to input camera video signals.
CAMERA OUT connectors
BNC connectors to output camera video signals.
When the MAIN switch is on, the camera video signals
input to CAMERA IN connectors are looped out to
these connectors.
3 VIDEO OUTPUT connectors
OUTPUT A VIDEO connector
BNC connector to output video signals to the monitor.
OUTPUT B VIDEO connector
BNC connector to output video signals to the second (B)
monitor. ( Page 24)
4 AC power socket
Use this socket to connect the supplied power cord.
Earth terminal is used for safety. Insert the power cord
of this recorder to the 100 to 240 V outlet with ground
terminal.
Notice
• When the power outlet does not have an earth
terminal, ask your dealer for grounding work (for pay).
Never connect the ground terminal of the power cord
to the gas pipe, water pipe, conductor rod and so on.
• Make sure to use the supplied power cord.
5 GND terminals
This terminal is used as common ground terminal.
6 XGA port (DX-TL308E only)
Port to output video signals to XGA monitor.
7 <DX-TL308E> ALARM IN terminals (1 to 8)
<DX-TL304E> ALARM IN terminals (1 to 4)
Terminals to input alarm signals. These terminals ac-
cept alarm signals once a second. However, when
multiple signals are input at the same time, not all the
signals may be accepted.
8 RS-232C connector
This connector is used to connect a host device
equipped with RS-232C connector (such as a personal
computer). This recorder can be controlled from other
devices via this connector.
4 65 87 9 10 11 12 13 14 15
1 2 3
* This illustration shows an example of DX-TL308E.
Rear view
Major operations and their functions (continued)