The PRA-LIM is one of the two core components of the Loudspeaker line isolator system for PRAESENSA public address voice alarm solution.
Loudspeaker line isolator system
The Loudspeaker line isolator system is the cost-efficient solution for preventing loss of audio function in public address and voice alarm systems, as a result of loudspeaker line faults. It largely eliminates the need for expensive E30 cabling by making use of the so-called loop wiring method. The system is EN 54-16 compliant and is perfectly suited for use in commercial premises, such as office buildings and hotels.
Functions
Maximum availability and loop integrity
The Line isolator module (PRA-LIM) is used to detect and isolate loudspeaker line failures. A loudspeaker line failure between two Line isolator modules in the loop is automatically isolated in order to ensure maximum availability of the remaining loudspeakers on that same loop. The device protects the loop integrity against any wire-to-wire short-circuit and detects open line on T-Branch.