

LAUNCHED earlier this year, Wallis Surge Protection's Total System Protection for CCTV systems are claimed to be another innovative technical development for the international security market.
"Protection of sorts has been available for some time but, until now, the technology has not been available to give total system protection to this sensitive equipment and give zero degradation of signal quality - to both picture and data," says a spokesman for the UK-based manufacturer.
Wallis' new surge protection device gives maximum protection to CCTV systems, at both camera and monitor, against damage from direct, close and long distance lighting strikes, static discharge and power surges - but with zero degradation of signal quality, he says.
"CCTV is one of the fastest growing markets worldwide and the uninterrupted operation of these systems is essential. However, their location makes them vulnerable to both primary and secondary effects of lightning activity and the damage resulting from power surges and transient overvoltages," he adds.
Two devices are available for this purpose: CCTV/EC for systems where the outer of the connecting coax cable is earthed and CCTV/FC for systems where the outer of the coax is isolated. Both devices are designed and built to offer high levels of protection, low SWR, low insertion loss and ease of fitting, yet are compact and robust. All devices are said to be fully compliant with BS6651:1999 Appendix C.
Wallis Surge Protection, based in the UK, has long been at the forefront of development in surge protection devices for power, telecommunications and data transmission. Wallis has built a worldwide reputation for quality, reliability, innovation and customer service, says the spokesman.
Wallis products are used by government departments, public organisations and major international companies for the prevention of damage to electrical circuits, sensitive electrical equipment and monitoring systems resulting from power surges and transient overvoltages, he adds.