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INSTALLATION GUIDE
EXTERNAL SOUND UNIT - INTRODUCTION
Your AZ-TECH External Sounder with on-board Strobe unit is designed to form an integral part
of any Residential or Commercial Security Alarm System. The Unit has certain selectable
features with which we recommend that you familiarise yourself prior to commencing installation.
Battery ON / OFF:
Your Sounder has its own on-board NiMH back-up battery. This enables it to operate
independently of the main control panel should disconnection occur (ie. during an attempt to
disable the unit).
When the battery jumper is in the OFF position the battery is isolated, the Sounder will not
operate unless it is connected to the Control Panel and a ‘hold-off’ voltage is present.
When the battery jumper is in the ON position the battery is connected to the Bell box circuit
allowing stand alone, SAB / SCB operation and trickle charge of the battery when a ‘hold off’
voltage is applied.
SAB / SCB:
SAB: (Self activating Bell unit). The standard sounder operating mode, providing maximum
sounder volume. Upon sounder activation, current is drawn from the control panel, unless ‘hold
off‘ voltage is removed (ie. as a result of power disconnection from the control panel during an
attempt to disable the unit).
SCB: (Self contained Bell unit). In this mode, upon sounder activation, current is drawn only from
the on-board NiMH rechargeable battery, not from the Control Panel. This is ideal when using
secondary sounders so that you do not overload the Control Panel or power supply current load
capacity. Sounder volume is reduced in this mode.
Timer Select: 15 Min / 9 Min / 5 Sec
The sounder cut-off time is selectable . 15 or 9 minutes ‘cut-off’ and 5 second test mode are
provided. The test mode is utilised upon initial set-up in order to minimise sounder operating
time, thus enabling the engineer to work on the unit with minimal noise disturbance.
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