The Open-area Alarm Devices are loop-powered, wall mounted devices which are connected to any Odyssey Intelligent System.
The range comprises sounders, beacons and sounder beacons, all designed to fit to a common mounting base. Details are shown in Table1 overleaf.
A nominal sound output of 100dB(A) is achieved at a current consumption of 5mA in the case of the sounder and 8mA for the sounder beacon. Many control panels will be able to drive up to 20 sounders and up to 15 sounder beacons per loop on average. The maximum number of devices that may be connected to a particular loop should,however, be determined by a loop loading calculation.
The Odyssey tone version produces a pulsed alert tone of 984Hz, 1 second off and 1 second on, and a continuous evacuation tone of 644Hz for 0.5 seconds followed by 984 Hz for 0.5 seconds.
The volume control can be used to adjust the sound from 100dB(A) to 92dB ±3dB(A) if required.
The sounder also offers synchronisation of continuous and pulsed tones.This ensures the integrity of the alert signals–tones from different sounders do not merge into one signal that could be mistaken for an 'evacuate' tone.
The alarm devices have a base which is fitted to the mounting surface and wired as a 'first fix'.
Dimensions and weight of Sounder Beacon:
Since the alarm devices are intended for use in open areas, it is possible for more than one device to be audible at any given point in a building. For this reason, the operation of all may be synchronised by the control panel.
All the alarm devices can be assigned group addresses as well as individual addresses, so that the functional options of the sounder are identical with those of the Sounder Control Unit part no 200-206.