4CH AHD 720P/CVBS Vehicle Video Splitter for Truck Camera Systems
Product Description
Product Detail
Product Advantages
1. One Control Unit for Four Vehicle Cameras
Connect up to four camera channels through one compact video control unit. This simplifies the wiring and signal management of multi-camera vehicle systems.
2. AHD + CVBS Camera Compatibility
It can supports AHD 720P/CVBS. This makes the unit suitable for projects using different generations of vehicle cameras.
3. Trigger-Based Full Screen Switching
Each camera can have an individual trigger input. When a trigger signal is activated, the corresponding camera can automatically take over the display in full-screen mode. This is useful for applications such as: Reverse camera activation, Side camera monitoring, Front camera activation and Vehicle door or turn-related camera switching.
4. Flexible Multi-View Display
When two or three cameras are connected, the system can automatically switch to the corresponding 2-split or 3-split display mode. This provides a practical way to build different camera configurations without changing the main control unit.
5. Independent Mirror Image Setting
Each camera channel can be configured separately as normal image or mirror image, allowing different camera positions to use their appropriate viewing orientation.
Product Parameters
Product Type: 4CH AHD Vehicle Video Multiplexer
Camera Input: 4CH AHD 1080P / AHD 720P / CVBS
Video Output Resolution: AHD 720P / CVBS
Camera Channels: 4CH
Display Mode: Full Screen / 2-Split / 3-Split / Multi-View according to connected cameras
Camera Trigger: Individual Trigger for Each Channel
Camera Selection: Trigger Wire / Manual Selection
Trigger Display: Automatic Full-Screen Display
Display Priority: CAM1 / CAM2 / CAM3 / CAM4
Trigger Return Delay: Approx. 2 Seconds
Image Setting: Normal / Mirror, independently adjustable for each channel
Audio: 720P / CVBS Audio Output Supported
Power Output: 12V Power Output for Cameras and LCD
Working Voltage: DC 9V–32V
Protection: High Voltage / Low Voltage / Overload Protection
Video Output Connector: RCA / 4P Aviation
Video System: PAL / NTSC
Dimension: 155 × 87 × 32mm
Typical Camera Configuration
The 4-channel architecture can be used for different commercial vehicle layouts.
- Truck / Trailer
Front Camera + Rear Camera + Left Side Camera + Right Side Camera
- Bus
Front Camera + Rear Camera + Door/Side Camera + Additional Camera
- RV / Motorhome
Rear Camera + Left Side Camera + Right Side Camera + Front Camera
- Special Vehicle
Front Monitoring + Rear Monitoring + Working Area Camera + Side Camera
The actual camera configuration can be adjusted according to the vehicle body and monitoring requirements.
Trigger & Display Control
The trigger function is one of the key features of this vehicle video multiplexer. Each of the four camera channels can be triggered separately. When the trigger signal is received, the corresponding camera automatically changes to full-screen display according to the preset camera priority. After the trigger signal is cancelled, the image remains displayed for approximately 2 seconds before returning to the previous display state. This type of trigger control is particularly useful when the driver needs an important camera view to temporarily override the normal multi-camera display.
Why Use a Video Multiplexer Instead of Connecting Cameras Directly?
For a multi-camera vehicle system, the main challenge is not simply the number of cameras. The system also needs to manage which camera should be displayed and when.
The 4CH AHD Vehicle Video Multiplexer provides a centralized connection point for four cameras and handles:
- Camera Input → Signal Processing → Trigger Control → Display Switching → Monitor Output
This allows vehicle manufacturers, installers and fleet solution providers to build a more organized multi-camera vehicle surveillance system.
FAQ
Q1: How many cameras can the control box support?
It supports up to 4 camera inputs.
Q2: Does it support AHD1080P cameras?
Yes. It supports AHD 1080P, AHD 720P and CVBS camera inputs.
Q3: Can each camera be triggered separately?
Yes. Each camera channel can be triggered separately and automatically displayed in full screen.
Q4: Can I manually select a camera?
Yes. Any of the four camera channels can be selected manually.
Q5: Can the cameras use different mirror settings?
Yes. Normal/mirror image can be configured independently for each channel.
Q6: What happens after the trigger signal disappears?
After the trigger is cancelled, the selected image remains for approximately 2 seconds and then returns to the previous display state.
Q7: Can it work with a 24V truck?
Yes. The working voltage is 9V–32V, covering common 12V and 24V vehicle applications.
Q8: Does it record video?
No. This version is a video multiplexer/control box, not a DVR. It is designed for video switching and display management.