The VM-HD4 is a HD video multiplexer (Mux) that is compatible with analog CCTV and HD CCTV cameras (HD-TVI, AHD, HDCVI). This quad screen processor takes video input from up to 4 security cameras via BNC video inputs, combines the video signals, and outputs video via HDMI, VGA, or 2 BNC (CVBS) video outputs. The video output layout is controlled via the included wireless remote. The following video output modes are supported: quad screen, single camera full screen, PIP (picture in picture), dual screen (2 camera split), auto sequence (single camera scrolling / dwell time).
Each input channel of the VM-HD4 can accept analog CCTV, HDCVI (720p or 1080p) HD-TVI (720p or 1080p), and AHD (720p or 1080p) cameras. Users can mix and match and combination of these camera types on a single device. NTSC and PAL video format cameras are supported however all cameras must be either NTSC or PAL. US and European video standards can not be mixed.
The VM-HD4 supports dual monitor output, which means that the HDMI and VGA outputs can both be used at the same time. In addition, the analog BNC video output can also be used with both the HDMI and VGA outputs connected.
Please see the below
demo video and
sample CCTV quad multiplexor images for examples of these video modes. You can also see a how-to install / wiring diagram here. The VM-HD4 includes a power supply and a wireless remote control which allows users to access all settings and controls.
HD CCTV Video Multiplexer Features
4 Channel BNC Video Inputs
Each Input Accepts Analog CCTV, HD-TVI, HDCVI, AHD Cameras NTSC and PAL Video Format Supported
HDMI Video Out - HD Video Out
VGA Video Out - HD Video Out
Dual Monitor Output Supported - VGA and HDMI video outputs can be used at the same time.
HD Video Output Selectable - 1024 x 768, 1280 x 1024, 1440 x 900, 720p/50/60, 1080p/50/60
2 BNC Video Out - CVBS Video Out
Real time refresh rate
Separate Color Adjustments for each Security Camera
Selectable Video Display Modes
Full Screen / Single Camera
Quad Screen / 4 Cameras
Picture in Picture
Dual Screen (2 camera split screen) - Horizontal & Vertical Modes
Auto sequence - scrolling single camera / full screen
Wireless Infrared Remote Control Included
Power Supply Included - DC 12V 1amp
Product Dimensions: 8.25" x 6" x 2" (width x depth x height) in inches
HD CCTV Multiplexer
The following images show the front and back of the VM-HD4 HD Multiplexer.
On the front of the device, there are buttons to control the screen display, access the menu system, and freeze the image. It is more typicaly to use the wireless remote control.
On the back of the multiplexer, there are 4 BNC camera inputs that are used to get the video feeds from up to 4 cameras. The other 2 BNC connections are analog video outputs. There is an HDMI and VGA monitor output.
The above video demonstrates the 1080p HDMI video output of the VM-HD4. In the video, the VM-HD4 has (4) 1080p security cameras connected to it - 2 AHD and 2 TV cameras. Please select 1080p video resolution in the lower right of the YouTube video player and watch in full screen mode to see the best quality video.
The VM-HD4 HD quad processor / multiplexer for video surveillance supports the following screen views: quad (4 camera view), split screen / dual camera view, single camera view, and PIP (picture in picture).
Note: All of the below screenshots were taken using a VM-HD4 with four
1080p HD security cameras connected to it. Please click on any of the images for a full 1080p resolution view.
These are the cameras that were connected to the quad when these screenshots were captured.
Quad View / 4 Camera Screen View
The above image shows 4 HD security cameras using the quad / 4 camera view of the VM-HD4.
Alternate 4 Camera View / Quad View
This alternative 4 camera view allows one large camerain the middle with the three small camera views along the right side.
Dual Screen / Split Screen / 2 Camera Screen View
The above image shows the 2 camera view / side by side.
Horizontal 2 Camera View / Split Screen
The above image shows the 2 camera split screen view. The camera views are horizontal.
Single Screen / One Camera View
The above image shows a single camera / full screen view using a 1080p HD-TVI security camera.
Picture in Picture
The above image shows the picture-in-picture (PIP) view.
The above diagram shows 4 security cameras cam be connected to the VM-Q4 using RG59 coax cable. The multiplexer can be connected to a TV / monitor using HDMI or VGA cable. The user can control the video display layout using the wireless remote control that is included with the quad or using the buttons on the front of it.
Download the VM-HD4 user manual.