1. Shop Online AHD Vehicle Mobile DVR 4 Channel 720P 4G School Bus CCTV SD card MDVR with GPS and accessories
Before you use this product please check the accessories in the packing box. If there is anything missing or damaged please contact your seller. The MDVR and accessories are listed as following:
List of MDVR and accessories
2. 4CH AHD Vehicle MDVR System connection
SD card installation
Please insert the key into the hole of the lock on the front panel, and switch it to be open status, then pull the cover toward right, you will see the SD card slot.
Please insert the SD card into the slot as per the icon indication, Then close the SD cover and lock it (Please remember to lock it, otherwise, The SD card will not work)
Antennas Connection
Please connect the WiFi and GPS antennas as per the picture as followed, We suggest you put the GPS antenna externally at the vehicle’s roof to make sure signal connection even when it is weak.
Power Connection
Please connect the power as per the definition of power interface. Positive pole (RED) connects with power input 10-36V DC, ACC ignition (YELLOW) connects with 5-36V DC.
The yellow ignition wire is used to detect the ignition signal. We strongly suggest you connect it with the “RUN” terminal of the ignition switch, or any terminal in the vehicle’s switch box which will have power only when the vehicle was ignited (f.g. the FM radio)
PS: When testing the device, please connect both of the red power wire and the yellow ignition wire with the positive pole of the UPS, otherwise, the device will not boot.
Camera connection
You can connect the camera with the AV input cable directly, or by extension cable (optional). The AV cable in the accessories box has mark on each connector, AV 1-4 are for cameras connection.
PS: Before you connecting the cameras, please double check the definition of the AV interface, please make sure your cameras are with same aviation interface definition with the DVR.
Monitor connection
The device supports VGA and CVBS output. You can switch the output mode to be the one you need by the mouse or remote control.
AHD Vehicle Mobile DVR 4 Channel 720P 4G School Bus CCTV SD card MDVR with GPS Specifications:
| Item | Parameter | |
| OS | Linux | |
| Language | Chinese/English/Customized | |
| Video Compression | H.264 | |
| OSD | Overlays information such as date time and vehicle ID | |
| GUI | Graphical User Interface | Setup system parameters with the remote control. | |
| Video Record System | Video Input | 4CH 720P AHD input/SD input/mixed video input,aviation connector, 1.0Vp-p, 75Ω | |
| Video Output | 1CH CVBS+1CH VGA output, 1.0Vp-p, 75Ω,Aviation,Support 1CH Full Screen,4CH Screen | |
| Preview | Support 1 channel and 4 channels preview.,Support Manual/Alarm Trigger full screen preview | |
| Resolution | 720P/D1/HD1/CIF, MAX:4 channels 720P | |
| Video Quality | 0-7 levels, 0 is the highest level. | |
| Video Standard | PAL: 100f/s , CCIR625 line,50field; | |
| NTSC: 120f/s, CCIR525 line,60field; | |
| CIF: 256Kbps ~ 1.5Mbps, 8 level video quality optional; | |
| HD1: 600Kbps ~ 2.5Mbps, 8 level video quality optional; | |
| D1: 800Kbps ~ 3Mbps, 8 level video quality optional; | |
| 720P: 4Mbps-6Mbps, multi level video quality optional | |
| Record Mode | The default setting is auto recording after power on. Timed recording, alarm trigger recording and manual recording are supported. | |
| Audio | Audio Input | 4CH ,Aviation Plug | |
| Audio Output | 1CH,Aviation Plug | |
| Compression | G.726 compression, 8KB/s speed | |
| Alarm Input | 4Ch Alarm Input, kinds of alarm linkage support | |
| Alarm Output | 1CH Alarm Output | |
| Communication interface | 1CH RS232 or 1CH RS485 for optional | |
| Position | Support Built GPS/BD Module, built in G-sensor, can repaly and analyse vehicle driven route. | |
| wireless transmission | Suppport Built-in 3G/4G wireless transmission function, WCDMA, CDMA2000, TDD-LTE, FDD-LTE.... | |
| |
| Motion Detection | Support motion detection alarm. (Can set the video recording duration time after alarm on platform.) | |
| G-Sensor | Support G-sensor | |
| Storage | SD | Dual SD Card,each max 128GB SD Card loop recording | |
| Upgrade | Support SD Card remote updating | |
| File Format | 0.264 | |
| File System | Special FAT32 File System | |
| Video Playback | Video Search | Search By Record Time/Record Type etc | |
| Playback | Max support 4CH Replay /Stop/Fast/Slow at same time | |
| Support forward and backward play at the speed of: x 2,x4,x8,x16. | |
| Voltage & Power | Power Management | Wide Voltage.Support Timed/Delay off | |
| Voltage Input | DC:+8V ~ +36V | |
| Voltage Output | +12V 2.5A,+5V 2.5A | |
| Power Consumption | Normal Working <14W , Stand-by status < 0.5W | |
| Working Environment | Temperature | -20℃to +70℃ | |
| Humidity | 20% to 80% | |
| Security | Password | User/Admin 2 Level Different Password | |
| others | Size | 112(W) x36(H) x138(D) mm | |
| Net Weight | 360g | |
