The V235GLTA-1 Ground Loop Transformer is a passive ground loop
correction device for coaxial control systems such as Vicoax®. It
differentially nullifies the AC current that can occur in the video cable
shield as a result of differing voltage potentials at each end of the
shield.
The difference in potential can arise from bridging of two power
distribution systems supplying the camera and monitor in which the
level of electrical ground varies.
The V235GLTA-1, designed specifically for a coaxial control system,
protects and restores the video signal.
Ground loops are a common cause of video distortion. Undesirable
symptoms include “hum” that appears on one or more horizontal bars,
horizontal tearing or pulling, and vertical rolling.
Note: Signals are attenuated by approximately 30% (3 dB) by the
V235GLTA-1
Common Mode
Ground Loop
- Rejection Rate: 90 dB at 50/60 Hz
- Input Impedance: 75 ohms
DC Input
- Impedance: 75 ohms (+/-5%)
- Bandwidth (±3 dB referenced to 100 KHz): 10 Hz to 10 MHz at 1 V p-p. 25 Hz to 10 MHz at 2 V p-p
- Connectors: Insulated BNC
- Dielectric Withstanding Voltage: 500 VDC from connectors to case and to each other
- Signal Level Loss: 30% (3 dB)
Mounting: Two mounting tabs.
Dimensions:
- Height: 1.00 in. (25.4 mm)
- Width: 2.85 in. (72.4 mm)
- Depth: 2.5 in. (63.4 mm)
- Height: 0.1 lb (0.05 kg)
- Construction: Plastic
- Finish: Black