Reliable Surge Protection for BNC Coaxial Video Lines
LY23 is an inline BNC video signal surge protector designed for analog CCTV cameras, DVR and NVR video inputs, video monitors, matrix systems, optical video transmitters, and coaxial surveillance networks. It helps suppress transient overvoltage entering through video cables while maintaining transmission rates up to 10Mbps and insertion loss of no more than 0.2dB.
Inline protection for BNC coaxial video cables
Suitable for analog CCTV and video monitoring systems
Up to 10Mbps transmission with ≤0.2dB insertion loss
No external power supply required
Suitable Applications
LY23 is suitable for coaxial video signal lines that require surge protection without significantly affecting image transmission.
Analog CCTV Cameras
Protects BNC video outputs and coaxial cables used by analog surveillance cameras.
DVR & Video Recorders
Helps protect DVR and compatible video recorder inputs from surges carried by coaxial lines.
Video Matrix Systems
Suitable for video matrix switches, monitoring consoles, display systems, and video control rooms.
Video Transmission Links
Protects coaxial links connected to video transmitters, receivers, monitors, and signal converters.
FAQ
Common questions about LY23 BNC coaxial video signal surge protector selection and installation.
What is the LY23 BNC video surge protector used for?
LY23 is installed inline with a BNC coaxial video cable to help prevent lightning-induced and switching transient overvoltage from reaching cameras, recorders, monitors, and video-control equipment.
Which systems commonly use LY23?
Typical applications include analog CCTV cameras, DVR video inputs, video matrix systems, monitors, optical video transmitters and receivers, and other BNC coaxial surveillance equipment.
Will LY23 affect video signal quality?
The listed insertion loss is no more than 0.2dB and the maximum transmission rate is 10Mbps. Compatibility should still be checked against the actual video format, impedance, cable type, and transmission distance.
Does LY23 require an external power supply?
No. It is a passive inline protection device and does not require an external power supply.
How should LY23 be installed?
Install it inline with the BNC coaxial cable and as close as practical to the protected equipment. Follow the input and protected-side markings and keep the grounding connection short and direct.
What should be confirmed before ordering?
Confirm the BNC connector type, signal voltage, video format, cable impedance, transmission rate, cable length, grounding method, installation location, and required surge withstand level.








