Car Black Box Road Eye JS-300C User manual

Warning!
The JS-300C is a device to assist a safe driver.
We are neither responsible nor compensate for any defect and damage caused by the
user's misuse and carelessness.
Hereby, J COMMUNICATION CO.,LTD. Declares that this VIDEO CAR BLACKBOX is
in compliance with the essential requirements and other relevant provisions of
Directive 1999/5/EC.
※ Information
This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or
transmitter except in accordance with FCC multi-transmitter product procedures.
And also used for this transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
※ Caution
Danger of explosion if battery is incorrectly replaced. replace only with the same or equivalent type.
※ Warning
THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED
MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY
TOOPERATE THE EQUIPMENT
※ Statement (2)
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment
generates, users, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the userwill be required to correct the
interference at his won expense.
※ Statement (1)
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions ;
(1) This device may not cause harmful interference.
(2) This device must accept any interference received. Including interference that may cause undesired operation.
Terms of use
The contents of this document are protected by applicable Republic of Korea and International Copyright Laws. Unless otherwise
stated, the copyright owner is J COMMUNICATIONS CO.,LTD. The document and information contained within may not be copied,
transmitted, reprinted, published, translated, hosted, or otherwise distributed by any means without the explicit written permission
of the copyright owner. In no event shall J COMMUNICATION CO.,LTD. its distributors or suppliers be liable to any third party for
any general, special, indirect, incidental, or consequential damages whatsoever arising out of or relating to the information/software
provided in the product package.
Thanks for purchasing Road Eye, JS-300C, a driver recording system.
Please be sure to read this manual in details before use.
We do not provide a warranty for the compatibility of some accessories which are not provided by us. We are also not
responsible for any defect caused by such accessories.
After getting the warranty card, please check the purchasing data (Date, Shop Info)on it.
Road Eye Viewer Program which is provided is designed to be run on Window 2000/XP/Vista.
※ it’s product statement and caution(or attention) is below a user manual or instruction manual because Type label is too
small(No room for this writing) and required text is already included in the user guide

ATable of Contents
Product
Introduction
01
Installation
Guide &
Function
Descriptions
02
Playback
03
Update
04
Others
05
Product Introduction
Precautions for Safety
Cautions in use
Specifications
Package Contents
Part Descriptions
LED Signal Descriptions
Cautions before installation
Configuration Setup
Installation Guide
Mounting
Checkups after installation
Installation of an external camera (Option)
Function Descriptions
Start
Normal Record Mode (Full Time Recording)
Normal Record + Event Record Mode
Reset
GPS Function
Acceleration Sensor (G-Sensor)
G-Sensor Data Analysis (Example)
Play through TV
Cable connection for TV Out
How to use TV Out funtion
File viewer mode
Function of each button
Playback the file recorded on Normal Mode
Playback the file recorded on Event Mode
Play through PC
Viewer Program Installation
How to use Viewer Program
Configuration Set
Firmware Update
SD Card Data
Warranty Policy
Warranty
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Product Introduction
Product Introduction
Precautions for Safety
Cautions in use
Specifications
Package Contents
Part Descriptions
LED Signal Descriptions

01
Product Introduction
01
Product Introduction
89
Road Eye is a Driver Recording System which applies GPS (Global Positioning System),
and 3D acceleration gravity sensor (G-Sensor).
Before using this product, please be sure to read this manual.
Actual product specifications may differ from what is indicated in this manual
as product enhancements are implemented without prior notice.
Printed at the time of production, this manual may contain technical or editorial
mistakes or omission.
While driving, never perform any operation and always park the car
in a safe place first before operating the device.
Do not disassemble, repair, or reconstruct without an authorized
technician.
Use the device under proper temperature.
Leaving the device for a long time under hot or cold temperature
can be a cause of malfunction.(Proper Temperature: 0 ~ 60℃)
Avoid exposing this product to shock or impact and keep it away
from magnetic fields or vibration.
Keep the product away from wet places.
In using vehicle power, do not use for a long time with the engine off.
It may be a cause of discharge.
This product is designed to be used with Cigar Jack Power.
In case of using direct electric power (B+ Power) of car, please
discuss with a specialist, and any problem occurred in this case
will belong to users responsibility.
Actual product specifications may differ from what is indicated in this manual
Printed at the time of production, this manual may contain technical or editorial
 Precautions for Safety
To prevent causing damage to the user’s property and to ensure the
user’s safety, please read carefully the following precautions.
Warning!
 Cautions in Use
Performing while driving can be a cause of accident. Always park
the car in a safe place first before operating the device.
Check the installation status before driving. Driving under the
physical conditions such as uneven, a sharp curve in the road with
unstable installation might cause damage.
In using vehicle power, please first check if there is no problem
with the power supply before connecting the device to the cigar
jack adaptor. Any sudden power spike may damage the device.
This product is designed to automatically record a video file,
triggered by a user-defined level impact to your car. The
manufacturer does not guarantee about every impacts on your car
to trigger this function.
Prevent any foreign substance to come in contact with the memory card
or the internal parts of this device, as it might cause malfunctions.
Keep the lens clean and avoid any obstacles in the camera angle to get
the clear view.
Do not put other substances around the device. It can be mirrored
through the windows and recorded with accident images.
In the accident getting less impact than the minimum user defined,
the image may not be recorded. (Refer to the manual)
Rights of all the software and hardware related to this product
belong to Jcommunications Co., LTD. Unauthorized reproduction,
processing and distributing can be punished by intellectual
property rights management law as well as claimed compensation
for damages.
Cautions

01
Product Introduction
01
Product Introduction
10 11
 Specification
Front Camera 120° ⅓” CMOS 300K Pixel Digital Sensor / WDR Support
External Camera (Option) 90°¼” CCD 270K Pixel NTSC
MPEG4(VGA 640 x480 up to 30fps)
★ 2ch use : QVGA(320 x 240) up to 10fps
GPS Internal GPS
Shock Sensor Internal 3D G-Sensor
Storage SD Memory Card (1GB ~ 16GB)
Audio Internal MIC
Power DC 12V ~ 24V(From Car Adaptor)
File Saving Upon Impact (Automatic/Manual)
Normal Recording (Full Time) Support
Real Time Clock Support
TV-Out Support
Size 119.5 x 55.0 (75.5) x 31.7 (mm)
Weight (g) 137 (g)
Recording Resolution
Package Contents Please check the contents after opening the gift box.
(Refer to the below images)
(Actual product specifications may differ from the images in this manual as product enhancements are
implemented without prior notice.)
JS-300C
External Camera & Cable (Option)
Direct Power Cable
Viewer Program CD 
Cable Tie / Holder
SD Memory Card
A/V Cable (For TV Connection) Quick GuideCigar Jack Power Cable 

01
Product Introduction
01
Product Introduction
Power connecting
(With SD Card)
Power Connecting
(Without SD Card)
When Event occurs
(Or when press Emergency Key)
On Normal (Full Time) Recording
(Voice Record Set)
On Normal (Full Time) Recording
(Voice Record Cancel)
When GPS signal is not available
When GPS signal is available
Firmware Upgrade
(When Power is connected)
Firmware Upgrade
(On progress)
Firmware Upgrade
(Completed)
File Viewer
(When connected)
File Viewer
(When runs)
System Error
LED Signal Descriptions
Power connecting
(With SD Card)
Power Connecting
(Without SD Card)
When Event occurs
(Or when press Emergency Key)
On Normal
(
Full Time)
Recording
(Voice Record Set)
On Normal
(
Full Time)
Recording
(Voice Record Cancel)
When GPS signal is not available
When GPS signal is available
Firmware Upgrade
(When Power is connected)
Firmware Upgrade
(On progress)
Firmware Upgrade
(Completed)
File Viewer
(When connected)
File Viewer
(When runs)
System Error
 
              
(Event) (Full Time) (GPS)
Blinking at 1 sec interval
one after another.
Blinking at 0.5 sec interval
by turns
Blinking at 0.1 Sec interval
for 30 secondsl
Blinking at 1 Sec interval
Light on continuously
Blinking at 1 Sec interval
Blinking at 1 Sec interval
Blinking at 0.1sec rapidly
Light on at the same time
Light off after lighting
Light on continuously
Light on continuously
(with Orange color)
12 13
 PART DESCRIPTION
Front Camera
Emergency Button
SD Card Slot
Mode Selection Switch
Function Key
Reset Key
MIC
Main Power Jack( )
TV Out Jack (A/V Mode) /External Camera Video In Jack (External Camera Mode)
External Camera Jack ( )
RED: Event Mode/GREEN: Normal Mode
YELLOW
BLUE:GPS
Lock Screw
Double Faced Foam Tape (For attaching to window)


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12 11

Precaution
Installation
Mount
Checkups after Installation
External Camera Installation (Option)
Function Description
Start
Normal Record Mode
(Full Time Recording)
Normal Record +
Event Record Mode
Reset
GPS Function
Acceleration Sensor
G-Sensor Data analysis (Example)
Installation Guide and
Function
Description

02
Installation Guide & Function Descriptions
02
Installation Guide & Function Descriptions
16 17
 PRECAUTIONS
Turn off the engine before installation.
Connect the main power of the device at last after installation.
( , here in after called “Power”)
Insert SD Memory card before connecting the device.
Install the device in safe and bright place
Connect the main power through cigar jack provided (DC 12V ~ 24V).
1 Attach the device
Check and select the proper place where does not disturb driving
on the front window and attach the device with a double faced tape.
2 Fix the device
Get the camera lens focused on the front and fix with Lock Screws
of the device.
★GPS reception part should be exposed to the window for the better reception.
3 Connect the power
Connect the cigar jack to the power port and check if the power
is working properly.
★SD Card should be inserted before connecting the power. Otherwise,
Red and Green LED would be blinking at 0.5sec interval by turns.
4 Working Test
Play back the saved data after testing drive. Then, check if the
data is recorded correctly and revise the camera place on it.
★ JS-300/JS-300G is working based on High- Sensitivity Camera Sensor.
The recorded video image can be shown dark if the device is installed toward the sky.
1 If the camera angle is not proper, adjust with rotating the lock
screw and fix it after.
★Refer to the step 2 ~ 5.
 Installation
Checkups after installation

02
Installation Guide & Function Descriptions
02
Installation Guide & Function Descriptions
18 19
 External Camera Installation (Option)
1 Select a place to install
Select a place to install the external camera and fix with the screw
provided. (The connecting part should be toward to the ground.)
2 Connect the camera to JS-300C
Connect the camera to JS-300C with the cable provided.
(,A/V)
★ Mode Selection Switch must be on to use an external camera.
3 Fix the camera angle
After adjusting camera angle, fix the camera with the lock screws
on the bracket.
★Disconnect the power during installation of the camera.
★ External Camera is only for internal use.
 Start
1. Insert SD Card into JS-300C, then power on. Red, Yellow and Blue LED will
light sequentially at a second interval.
About 6 seconds after lighting, JS-300C will start running.
If it powers on without SD Card,
Red and Green LED will be blinking alternately at 0.5
sec interval. In this case, disconnect the power and connect power again after
inserting SD Card.
2. Recording is run based on Normal record mode and Event + Normal record
mode (Full Time Mode), and the present recording mode is saved and memorized
into Configuration Variable Setting File in SD Card.
(The Factory default record mode is Event Mode and it would be same after formatting SD Card.)
 Normal Record Mode (Full Time Recording)
1. Green LED is blinking at 1 second interval on Normal Record Mode.
2. Normal Record Mode records video and audio at 1 minute interval successively.
3. If the SD Card storage is full during Normal Mode, the JS-300C will start
overwriting from the first files saved.
4. During Normal Mode, G-Sensor (Acceleration Sensor) and Emergency Button function
will stop working.
5. If the power is disconnected during Normal Mode, the will be shutdown instantly.

02
Installation Guide & Function Descriptions
02
Installation Guide & Function Descriptions
 Acceleration Calibration Function (GPS)
1. If GPS data is not received properly, Blue LED will blink at 1 second interval.
When GPS Data reception is working properly, Blue LED will be lighting
continuously.
2. If presses Play Key on either Normal Record Mode or Event Record Mode for
more than 3 seconds, GPS Cold Start will be operated.
3. If GPS Data reception is running correct, set the time of internal RTC
(Real Time Clock) on GPS time. Once set on GPS time, it will maintain the exact time
without any additional time set. The internal RTC time is reflected with connecting
the power again after power disconnection.
4. If there is any substance which can give the bad effect to GPS reception, please
leave it in the distance from JS-300C.
 Normal Record + Event Record Mode
Reset
1. Unexpected system error can be occurred under unstable working environment.
When the system error is occurred, Orange color LED would be lighting
continuously.
2. If the system error is occurred, please disconnect power and press Reset Key.
Then, please connect the power again and it will work correctly.
1. Green LED is blinking at 1 second interval on Normal Record Mode.
2. When the impact value recognized by G-Sensor
(Acceleration sensor) is bigger
than User-defined value or when user presses Emergency key manually,
the image and voice before 15 seconds and after 15 seconds of the event
will be saved as a file.
When an event occurs, Red LED will be blinking rapidly at 0.1 second
interval for 30 second and inform of it.
3. The mode will be switched to Normal Recording Mode after the event is completed.
4. Another event occurs while the previous event is saved, the event would
be ignored.
5. The recording space is allocated by 75% for Normal Recording and 25% for
Event Recording.
6. When the power is disconnected on Event Record Mode, JS-300C would be
shutdown after saving the event, maximum 15 seconds, if it is on
recording an event. Otherwise it will be shutdown instantly.
20 21
1. G-Sensor (Acceleration Sensor) shows the Acceleration Value of
X, Y and Z axis on the unit of acceleration of gravity,
1g = 9.8m/s2. And the directions are as below image.
Acceleration Calibration Function
 (Right +)
 (Front +)
 (Top +)
2. If a vehicle is parked on the flat place, G-Sensor data is supposed to have the value of
X = 0g, Y = 0g and Z = +1g. However, it would be changed by the place JS-300C is
placed and mounted.
 
 
 
Z
Y
X

02
Installation Guide & Function Descriptions
Playback
22
Playback through TV
Cable connection for TV Out
How to use TV Out Function
File Viewer Mode
Function of each key
Playback the file recorded
on Normal Mode
Playback the file recorded
on Event Mode
Playback through PC
Viewer Program Installation
How to use Viewer Program
Configuration Set
G- Sensor Data Analysis (Example)
Viewer Program shows G-Sensor Data Graph as the below images upon Log Data which
is saved with video files and driving status can be analyzed through the graph.

 
 
 
1G
0G
time
Z
Y
X
Z
Y
X
1G
0G
time
1G
0G
time
1G
0G
time
1G
0G
time
1G
0G
time
1G
0G
time

03
Playback
03
Playback
Playback through TV
Item Recording
UP Voice Record Set
DOWN Voice Record Cancel
24 25

Recording
Item
Recording
1.Please connect A/V Cable to the jack on JS-300C.
2.Connect Yellow color A/V Output cable to Composite Video Output Terminal on
TV and connect Red (Right) and White (Left) color A/V cables each to
Composite Audio Output Terminal on TV.
3.Select A/V, Mode Selection Switch on A/V.
4.Connect a Power Adapter to .
★ Adapter is an optional item which should be purchased separately.
Usage of TV Out.
TV Out is used for the below two usages.
1. Real Time monitoring of forward shot images.
2. Play back the video file saved into SD Card with connecting TV directly.
(Please refer to File Viewer Mode)
If connect the power without pressing any key after connecting A/V Cable to TV,
JS-300C will start on Forward Shooting Video Output Mode. And if
connect the power with pressing Play key, it will start on File Viewer Mode.
 Cable connection for TV Out
 File Viewer Mode
Connect the power under the status of pressing PLAY Key and File Viewer Mode which
can replay the saved files through TV-Out is started.
(Green LED is blinking on operating.)
1.Press PLAY Key until Green LED is on after power connection.
2. Mode Selection Slide Switch must be on A/V, .
In the case there are files recorded by CAM 1 and 2, which are mixed up together on
Event File Viewer, the file recorded by CAM 1 is played first and the file recorded by
CAM 2 is played after automatically.
Function of each key
★ 1 Channel: Front Camera
★ 2 Channel: External Camera
Item
P L AY
STOP
UP
DOWN
File List Menu
Menu Select / Playback the selected file
Move to top menu
Move up
Move down
On Playing
Replay / Pause
Stop Playing / Move to the file list
Replay 10 second forward
Replay 10 second backward

03
Playback
03
Playback
1 2
1 2
Playback the file recorded on Normal(Full Time) Mode
Select NORMAL FILE VIEWER
 Playback through PC
Select Normal File Folder
Select EVENT FILE VIEWER Select EVENT File
 Playback the file recorded on Event Mode
1
Insert CD provided into PC and click
“Next” when the below setup
Wizard start image pops up..
2
3
When the installation is completed,
the below image pops up.
Then, press “Finish”
button to finish the process.
Press“install” button to install the
program when the below image
pops up.
26 27
PC Viewer Program Installation

03
Playback
03
Playback
How to use Viewer Program




Playback Display
3G-sensor / Playback Location
Volume Control
Playback Control
Change Mode
Playback List
Playback List Extension
Map Information
GPS Information
File management
Configuration Set
Program Information
Program Exit/Minimization
It shows recording data.
It shows 3G-sensor data with graphs and playback location.
It controls the play volume (Mute / Volume +,-)
Stop / Previous file / Rewind / Play (Pause) / Forward / Next file
It changes mode, either 1CH or 2CH.
It shows the playback list in the SD Card.
It shows separate playback list.
The driving routes are shown through this map.
The GPS location data are shown through this map. (Date / Time / Speed / Location / Direction)
File open/save/delete
Setting operating configuration.
It shows the current program version information.
Exit the PC Viewer program or Minimize the PC Viewer program.
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 Button Function Description
Volume Control It controls the play volume.
Play / Pause Stop playing and back to the start of the playing file.
Previous/Next Play the previous file or next file when selects the plural files and views in series.
Rewind / Forward Play before (after) few second during playing file.
Playback Speed Control It controls the play volume (Mute / Volume +,-) by dragging bar, mute set or cancel by speaker button.
Change Mode It changes mode, either 1CH or 2CH.
 Button Function Description
   It shows all files in the List.
Infinite Files It shows normal files only in the List.
Event Files It shows event files only in the list.
Open Folder
Selects the folder to play.
File export Save the selected file to hard disk drive.
File delete
Deletes the selected file on SD Card.
28 29
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1. Open Folder
1) Clicks on button.
2) When the explorer appeared, select the video files.
3) It can select one file or all files. (CTRL+A)
When the file saved correctly, appears thismessage.
(Disappear after 1 second)
2. File Export (Save to hard disk drive)
1) Select the files which you want to save to hard disk drive. (Multiple selection)
2) Clicks on the button, then [DVR Backup] folder will be auto-created and
saved in [My Documents] of PC.
Also captured during play, the file saved to selected route.

03
Playback
03
Playback

 
    
Configuration Set Setting operating configuration
Program information It shows the current program version information.
Minimize / Close Window Exit the PC Viewer program or Minimize the PC Viewer program
 
  Map Tracking
※ Google Map can be displayed when user PC is connected through internet
Map Zoom In / Out
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3. File Delete
1) There is a select button at the front part of each file.
2) When the select button is clicked, the file will be selected or cancel. (Multiple selection)
3) When the select button on the top is clicked, all of the file will be selected or cancel.
4) Select the files which you want to delete. (Multiple selection)
5) Clicks on the button, then the selected files will be deleted on SD Card.

1) Files can be arranged by ALL / EVENT / INFINITE.
2) When [ALL] is clicked, every file is appeared on the SD Card.
3) When [EVENT] is clicked, only event file is appeared on the SD Card.
4) When [INFINTE] is clicked, only normal file is appeared on the SD Card.
5) Clicks on the [Playback List Extension] button, then more files can
be seen all at once. (No.3 Picture)
6) Separate playback list is shown when the playback list extended.
When the file is deleted, appears this message.
(Disappear after 1 second)
    
    
Configuration Set Setting operating configuration
Program information It shows the current program version information.
Exit the PC Viewer program or Minimize the PC Viewer program
    
    
Configuration Set Setting operating configuration
Program information It shows the current program version information.
    





Description
It shows the file in the SD Card.
It shows separate playback list.
It shows separate playback list.
Arrange files by ALL / EVENT / INIFINITE
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03
Playback
03
Playback
Configuration Set

















Description
Select recording menu, time and unit..
Set up the video quality.
Select the recording mode. (Not support “Event Mode”)
Select the sensitivity of 3G-sensor.
Default all (Factory recovery status)
Save the setting.
Cancel the setting. (Close)
Description
Select the speed unit (Km / Mile / Knot)
Set up the current date and time.
Select the standard time zone.
Select the set time and whether applies daylight saving or not.
Select whether applies daylight saving or not.
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- INFINITE MODE: Generating the recording file continuously with EVENT with 1 minute interval
- INFINITE + EVENT MODE: When the event occurs, Red LED will be blinking rapidly at 0.1
second I interval for 30 seconds. after the event is completed,
operate as Normal Record Mode again.
**Apply to RTC
- Change the time to the set time. (“_time_ini.cfg” file generated)
- After setting, “_time_ini.cfg” file is deleted automatically.
**Daylight saving (Summer time)
- Select whether applies daylight saving or not.
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Playback

UPDATE
Firmware Update
SD Card Data
34





Description
Register user password and check the “Apply to user password”, then saved.
When it is run initially with setting password, check the password.
If you want to delete the password, undo the “Apply to user assword”.
The password is recorded in the PC.
Record the car number on the SD Card.
It shows the car number registered below the file name when the file is played.
If car number is registered, every SD Card is recognized by owner.
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04
Update
Update
04
Update
SD Card Data
1. Event Folder
On the Event Record Mode, JS-300C is records for the maximum 30 seconds
of video and audio and save it on the name of “yymmdd_hhmmss_xxx_x_E.mp4”
in this folder.
2. Infinite Folder
On the Normal Record Mode, JS-300C is records video and audio and saves it on the
name of “yymmdd_hhmmss_xxx_x_I.mp4”in this folder.
3. __system.cfg
Saves in this folder that configuration of the PC Viewer.
4. version.txt
Display version information
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Firmware Update

1. Copy the target file to update, “JS-300C.bin” into a root folder of SD Card.
2. Insert SD Card into JS-300C and connect the power.
3. When Red, Yellow and
Blue LED is sequentially on at a second interval and
JS-300C is started, Update is progressed with Green LED blinking
rapidly at 0.1 second interval.
4.
When Update is completed,  , Yellow and Blue LED are on at the same time.
5. Disconnect the power and connect again. JS-300C is working based on the
new firmware.


OTHERS
Warranty Policy
Warranty