Bus 4 Channel Vehicle DVR Features
Bus 4 Channel Vehicle DVR Specification

Bus 4 Channel Vehicle DVR (4G+GPS)

Date Time: March 12, 2025
Reading volume: 7
Author: China YUWEI

Bus 4 Channel Vehicle DVR Features


Operating Language:

English/Chinese

 

Video Input:

- Supports 4-channel CIF / HD1 / D1 / 960H camera synchronous recording and playback

- Supports 4-channel 720P AHD camera synchronous recording and playback

- Supports 2-channel 720P AHD + 2-channel 960H hybrid analog video input

 

Video Output:

- 2 video output channels (one φ3.5 Phone Jack, one in 24PIN connector)

 Car DVR

Video Display:

- Supports 1~5 screen display

 

Video Standard:

- PAL / NTSC (PAL @ 100 frames 720P; NTSC @ 120 frames 720P)

 

Video Compression Standard:

- H.264 image compression encoding

 

Audio Input:

- 4 audio input channels

 

Audio Output:

- 2 audio output channels (one φ3.5 Phone Jack, one in 24PIN connector)

 

Recording Mode:

- Synchronous recording of audio and video

 

Local Recording:

- Selectable resolution: CIF / HD1 / D1 / 960H / 720P

 

Video Stream Standard:

- ISO14496-10 industry standard

 

Video Bitrate:

- CIF: 1536Kbps ~ 128Kbps

- HD1/D1: 2048Kbps ~ 400Kbps

- 960H: 2048Kbps ~ 400Kbps

- 720P: 4096Kbps ~ 400Kbps

- 8 quality levels available (Level 1: highest quality, Level 8: lowest quality)

 

Audio Bitrate:

- 40Kbps

 

Data Storage:

- Supports a 2TB professional hard drive

- 1 optional SD card slot (only available in 3G/4G/WiFi models)

- Maximum SD card support: 128GB (for backup recording in case of hard drive failure)

 

Alarm Input:

- 8 alarm inputs, configurable for low-level alarm (below 1V) or high-level alarm (above 5V)

 

Alarm Output:

- 1 alarm output, high-level output at 12V

 

RS485 Interface:

- 1 RS485 interface

 

RS232 Interface:

- 2 RS232 interfaces

 

RJ45 Network Interface:

- 1 RJ45 port, supports external 1080P IPC

 

USB Ports:

- 2 USB ports

- Front USB: for software upgrades and video file copying

- Rear USB: optional, for mirror recording (customizable)

 

Wireless Communication:

- 3G: Optional, supports built-in 3G communication module (HSUPA/HSDPA/WCDMA/EVDO/TD-SCDMA)

- 4G: Optional, supports built-in 4G communication module (FDD-LTE/TDD-LTE)

 

Global Positioning System (GPS):

- Supports built-in GPS module

- Records real-time geographic coordinates and speed data

- Allows for wireless data upload

 

Network Acceleration Sensor:

- Supports three-axis motion detection

- User-configurable detection range for X, Y, and Z coordinates

 

PC Playback & Analysis:

- Playback video files on a PC

- Analyze vehicle data embedded in the files

 

IVMS Management Software:

- Centralized management software for preview, upload, command dispatch, and parameter configuration

 

Software Maintenance:

- Supports software updates via USB interface or remote IVMS platform upgrade

 

Power Input:

- +8V to +36V DC

- Warning: Ensure vehicle power supply is within this range. Long-term operation above 36V may damage the device.

 

Power Output:

- 12V (+/-0.2V), maximum current 3A

 

ACC Detection:

- ≤4V: Power off

- ≥6V: Power on

 

Video Input Impedance:

- 75Ω

 

Video Output Voltage:

- 2Vp-p CVBS analog signal output

- Display devices must have a 75Ω input impedance for compatibility

 

I/O Port:

- <1V: Low-level alarm

- >5V: High-level alarm

 

Operating Temperature:

- -40℃ to 80℃

- Recommended installation in a well-ventilated area, avoiding humidity, high temperatures, dust, and vibration

 

Applications:

Widely used in buses, logistics vehicles, school buses, police cars, cash transport vehicles, fuel transport vehicles, and other vehicle monitoring systems.

Bus 4 Channel Vehicle DVR Specification


Product Specification

项目

详细规格

备注

Appearance

structure

Size: 158.5*144.5*44mm

Shell material: die-casting aluminium


Protection class

IP67


Environmental

suitability

Working temperature: -30℃~70

Storage temperature:-40℃~85℃


Operating Voltage

Operating voltage range: 9 - 32V


Support car battery protection: 8.5V±0.5V/12V system,

17V±0.5V/24V system


Ultra-low power consumption

Quiescent current <2mA


Support zero power sleep


Ignition wake-up, RTC timer wake-up



design



Power

consumption

Average power consumption less than 24W


 

 

Super capacitor

 

 

3 super capacitors can supply power to the system

2~3s working time, save the complete video  before  power

failure

Indicator light

2 (1 communication signal, 1 terminal operation indication)


Interface

Positioning antenna connector: Fakra-C blue colour


Communication antenna connector: Fakra-D


 

Video

Maximum 6 channels of AHD/CVBS video inputs

Power can be supplied to the camera, the output voltage value is 12V, single maximum output current 0.5A


1 channel CVBS video output


 

 

Audio

2-way camera recording as standard


2W hands-free speaker output


1 SD card

Maximum capacity

support 2TB

Data Interface

2 RS232 interfaces, 5V power supply @500mA


1 channel 485 interface


Positioning

modules

GPS and BeiDou positioning module


Communication

Module

4G module


SIM card

Drawer pluggable SIM card


 

IO functions

7 inputs: ACC, left steering, right steering, high beam, low beam,

reverse, brake


1 open-drain output


 

Intelligent video terminal structure function

Structural schematic

Bus 4 Channel Vehicle DVR

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