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Small black inline BNC male to female isolator with short cables on each end

Bluecctv

Bluecctv BL-GLI Ground Loop Isolator surveillance accessory

SKU CH-7VM2-66JMP

Passive BNC ground-loop isolator stops picture tearing and rolling without needing power

  • Eliminates picture tearing, cross-talk and rolling with passive BNC isolator
  • Stops ground-loop video distortion between points with different ground potentials
  • Built-in TVS suppressors protect the CCTV system from voltage surges
  • No external power needed for simple integration into new or existing setups
  • 15 cm mini cables on both ends for quick BNC male-to-female connection

Purpose & Fit

The Bluecctv BL-GLI is a passive ground-loop isolator designed for CCTV installations where cameras and recorders sit on different ground potentials. It suits installers adding protection to new systems or retrofitting existing runs that show picture tearing, cross talk or rolling caused by ground-loop interference.

Thermals Noise Power

The unit is completely passive and draws no power, so it adds no heat or audible noise to the rack or camera housing. Built-in transient voltage suppressors clamp surges without requiring an external supply, keeping the signal path clean and the installation silent.

Build Integration

Each side terminates in a BNC male-to-BNC female connector with a 15 cm mini cable, letting the isolator sit inline between the camera cable and the DVR or monitor input. No configuration or power wiring is needed, freeing the installer from extra cable runs or adapter bricks while protecting the video path from unbalanced power-line loads.

Highlights

  • Eliminates picture tearing, cross-talk and rolling with passive BNC isolator
  • Stops ground-loop video distortion between points with different ground potentials
  • Built-in TVS suppressors protect the CCTV system from voltage surges
  • No external power needed for simple integration into new or existing setups
  • 15 cm mini cables on both ends for quick BNC male-to-female connection

Specifications

BrandBluecctv
ModelBL-GLI

Questions about this item

How do I connect the BNC male-to-female leads with the 15 cm mini cables on the BL-GLI isolator?

Insert the BNC male plug into the camera or DVR jack and twist the BNC female end onto the incoming coaxial cable; the short 15 cm pigtails on both sides keep the module close to the equipment so the ground-loop break occurs right at the signal entry point.

Will the built-in TVS surge suppressors on the BL-GLI need periodic replacement?

The transient voltage suppressors are passive solid-state devices that clamp surges automatically and do not wear out under normal operation; no scheduled replacement is required.

What is the maximum ground-potential difference the BL-GLI can handle before video tearing returns?

The isolator breaks the ground path for the video signal, so it eliminates tearing, cross-talk and rolling caused by typical unbalanced power-line loads; if the potential difference exceeds the TVS clamping voltage the suppressors will activate to protect the connected equipment.

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