Loopdrive – User and installation manual
2
1. Loopdrive introduction
Loopdrive is EN54 certified system for surveillance of loudspeaker lines in Public Address and Voice Alarm systems. The
main task of Loopdrive system is to keep the audio message broadcast in the emergency zone in case of
loudspeaker line short circuit. This is done by means of isolating damaged cable section away from the healthy part
of the cable.
Loopdrive system covers completely the functionality of Voice Alarm System in the area of loudspeaker line fault
detection, according to EN54-16 product standard. As a short-circuit isolator system, Loopdrive is also fully compliant
with EN54-17. Loopdrive is capable of detecting and indicating not only short-circuit on the line, but also open line,
disconnection of a loudspeaker, disconnection of power amplifier and earth-leakage at any point of the loudspeaker
line.
Loopdrive system provides monitoring of loudspeaker lines and single loudspeakers. In case of fatal failure on the
loudspeaker line, Loopdrive reacts immediately and keeps seamless audio transmission.
Finally, Loopdrive is a simple and smart tool for installers, commissioning engineers and service technicians for easy
maintenance routines, quick troubleshooting and repairing faults.
Smart, designed with no-nonsense approach to meet both high safety requirements as well as ease of installation
and servicing in the field;
Quick at everything it does: fault detection and isolation, on-site installation and commissioning, finally – automated
finding damaged cabling sections during tech service works.
Flexible for easy interfacing to any Voice Evacuation System on the market, with large configuration possibilities to
satisfy any tailor-made design requirement;
Transparent to keep the full band audio quality unaffected up to 800W constant AC power on a single 1000-meter
loop;
Reliable, catching every line fault at all times and reporting it to the main system with no mistake, EN54 certified for
safe long-term operation in severe ambient conditions.