The article covering radio fire detection (EMC, Dec 2002/Jan 2003, p35-36) clearly illustrates the advancement of wireless components within the electronic security systems industry.
Indeed the greater acceptance of wireless technology in the intruder sector means that Class 6 systems can comply with ACPO 2000 and DD243 and additionally meet EN 50131-1 Grade 3 of the European Standards for high risk applications.

In practical terms wire-free techniques will allow any such network to be installed or upgraded efficiently and with little disruption but change can be slow in markets where hardwired products are the norm. This is down to reluctance by traditional design engineers to quickly introduce radical new concepts and unfamiliar products into major projects.

Without doubt the integrity of radio techniques has made enormous progress over the last few years. However, ironically, the complete contrast in installation methods and modes of operation between hardwired and wireless products is always going to limit any rapid advancement being made no matter how deserved it may be.
Gerard Honey
AE Control Systems
Consett
County Durham

Source

Electrical and Mechanical Contractor