Ground Loop Isolator

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G703 Balun with Krone IDC
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CCTV Ground Loop Isolator
1.6/5.6 In Line Plug
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1.6/5.6 In Line Socket
1.6/5.6 Right Angle Socket
1.6/5.6 PCB Socket

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Providing Effective Solutions for CCTV Security Applications

Major Features of Ground Loop Isolator: 
  • High Reliability and Durability 
  • Compact enclosure 
  • Economy package, High quality and performance  
  • Passive Device (No power supply required)
  • Transient Voltage Suppressor included
  • BNC Male with 100 mm miniature coaxial cable input and BNC Female output
Specifications for Ground Loop Isolator *: 
  • Bandwidth DC to 10 Mhz
  • 75 ohm BNC Male to 75 ohm BNC Female
  • Maximum video input: 1.1 Vp-p
  • Insertion Loss <0.5 dB
  • Isolation Voltage: 750 Volts DC
  • Insulation Resistance: >100 M ohm
  • Transient Voltage Suppressor: 12 Volts rms
  • Operating Temperature: 0 to 55 oC Storage: -22 to 80 oC Humidity: 95%
  • Casing Size: 50 x 30 x 25 mm
  • Casing: Fire retardant plastic
  • Casing Colour: Black



         Video Ground Loop Isolator
Part No: E10500

The video ground loop isolator has been specifically designed to provide a cost effective solution to a common CCTV problem of multiple ground paths or ground loops which results in a rolling hum bar or instability in the picture being captured. 

An added feature of the Video Ground Loop Isolator is the incorporation of a Transient Voltage Suppressor to protect against surges.

Designed as a passive device the EQL Video Ground Loop Isolator will be an essential component to incorporate in all CCTV installations where ground loops are a known problem and to future proof the installation from possible interference particularly for high security applications.

             

               CCTV Image with Hum Bar Problem                                          CCTV Image with Ground Loop Isolator 
             Due to Multiple Ground Paths or Loops                                               to eliminate the Hum Bar

What is a Ground Loop

A ground loop occurs when there is a potential difference between inter-connecting equipment such as the camera and DVR and is due to an imbalance in the power loading of the two systems.  The potential difference cause a loop current to flow between the two inter-connecting equipment and as a result any interfering source such as 50 Hz mains power is picked up by the ground current flowing through the braiding of the coaxial cable instead of it acting as a shield to protect the interfering source from entering the coaxial cable.  See Figure below.

The 50 Hz mains power or hum is then passed on along with the wanted video signal from the camera and displayed on the monitor as a rolling hum bar


Where to Install the Ground Loop Isolator

The Video Ground Loop Isolator should be installed at the CCTV Camera end by connecting the BNC Male connector of the Isolator to the camera and the BNC Male connector of the coaxial cable to the BNC Female connector on the Isolator.   In a multi-camera installation it is recommended that a Video Ground Loop Isolator be installed for each camera.


* Specifications subject to change without notice.


Ground Loop Isolator Brochure
(122KB)


CCTV Catalog
(780KB)


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