is now expected to find, in any PA System, a host of monitoring
and supervisory equipment to ensure optimal performance. Most important
of all are the loudspeaker lines. As majority of this portion is
located far away from the central control room and due to aesthetic
reasons, hidden from view, it is therefore important. Therefore,
it is important to have a supervisory equipment that can provide
constant monitoring, proactive isolation of faults and to detect
various faults in any loudspeaker line configurations.
SL Series Supervisory Unit is designed to provide the solution.
Unlike other equipment found in the industry, the SL Series is built
on an entire different technology platform. Utilising impedance
comparison technique, the SL Series Line Supervisory Unit do away
with the need of DC blocking capacitor to each loudspeaker and end-line
resistor, required by the DC monitoring method. Installation is
as easy as terminating the loudspeaker line to the unit and setting
the individual appropriate impedance reference.
same technology also allows monitoring of loudspeaker lines with
branched network as well as through audio attenuator with overriding
feature, which is not possible with DC monitoring method. The SL
Series Line Supervisory Unit provide visual indicators for short,
open and ground leaks which cannot be performed by conventional
line monitors. Once a fault is detected, the unit automatically
isolates the zones to prevent further possible damage to other equipment.