26-0980 Issue 6
The Loop +ve (positive) IN and the Loop +ve (positive) OUT connections are split within the module. For cable
continuity readings at the commissioning stage they must be temporarily removed and connected through. Please
remember that all high voltage testing must be carried out before the installation of the electronics, otherwise the
electronics will be damaged. Please also note that the SCRN terminal should only be connected to the loop screen
and NOT the building earth.
Once all testing has been carried out on the cabling and continuity & insulation has been proven, the
Sounder/Strobe unit can be assembled.
NOTE: Before installing the Sounder/Strobe remember to note the serial number of the device (located on the rear
of the unit) on to your drawings or configuration sheets to enable you to prove its location later. The address
allocation for the device is carried out automatically by the control panel whilst in initialisation mode, so addresses
do not need to be set manually. See the system Installation and Operating Instructions for further details.
Tamper Resistance
The unit incorporates a locking mechanism which helps prevent unauthorised removal
from the base. To fit, gently insert the device positioned so that the alignment mark on
rim is rotated slightly anti clockwise relative to the alignment mark on the base. Rotate
clockwise until the device drops in and the alignment marks meet. The locking clip will
click.
To remove the device: depress the locking clip by inserting a small diameter tool, such
as a jeweller’s screwdriver, through the hole in the base as shown.
The device should then be turned anti-clockwise allowing it to be removed from the
base.
Device Settings
The sounder modes may be configured using the relevant panel software configuration package.
Single tone, 970 Hz continuous
Pulsed UK alert signal, 970 Hz 1s on, 1s off
Dual tone UK evacuate signal, 970 Hz 0.25s, 800 Hz 0.25s
This sound pattern is not supported in this product
Slow whoop up, 500 to 1200 Hz over 3s, 0.5s off
Sweep down, 1200 Hz to 500 Hz over 1s
Dual tone French warble, 550 Hz 0.1s, 440 Hz 400ms
Low, medium and high settings are available. See the Control Panel Engineering and Commissioning
Instructions for further details
See the Engineering & Commissioning Manual for your control panel (Sita, Duonet or Quadnet) for further
details of how to program the above.
Beacon Operation
The unit includes a Visual Indication Beacon. This consists of a number of high output LEDs.
The beacon will start to operate when the device receives a command to activate its sounder, even if the sound
pattern is set to SP0 - Sounder off. If the beacon only is required to operate, Sound Pattern SP0 must be selected
via the configuration software.
Power Up
The Sita Sounder/Strobe requires approximately one minute on power up to boot up its processor, charge for alarm
operation and settle down to normal operation. Do not sound the alarms within the first minute after initializing the
loop.
