Date 29/6/2021
Document number 921100409_09_002
Page 39 of 73
39 / 73
4.4.2
Connecting conventional sirens
Figure4-10.Conventional sirens connection
There are four outputs to the main board for conventional sirens connection marked as «SIR1», «SIR2»,
«SIR3» and «SIR4». Each output can supply a current up to 300mA and it is monitored for short-circuit
and open circuit. By default, 10kΩ resistors are placed on the output terminals. If the output remains
unused the resistor must remain on the terminal. When sirens are connected to the output, the resistor
must be removed and placed on the last siren as shown on the figure 4-10. All four circuit connections are
identical.
By default, all siren outputs are programmed to function simultaneously in case an alarm event occurs.
IMPORTANT!
It is not permitted to disable or enable single siren outputs. All sounding alarm devices
(sirens), both addressable and conventional can be enabled or disabled at once, simultaneously, via the
user menu.
The conventional siren outputs can support all conventional sirens (BS-531/1/MAR and BS-532/WP/MAR),
door bells or fire alarm beacons.
