LS Control A/S Page 3 / 5
Manual: 950-205795_Alarm_WE_981_UK rev.1.2
Jumper settings
When the jumper is placed in position ON,it is possible to mute the audible alarm by pressing the
sound mute button. It is possible to reactivate the sound by removing and reactivating the sound
input on terminal 3.
When the jumper is placed in position OFF, it is only the sound reset relay which closes, when the
sound mute button is activated.
Functional description
Sound reset relay:
The sound reset relay is activated when the sound mute button is pressed. The sound reset relay will
deactivate 1 second after the sound mute button is released.
When the relay is activated, a connection between terminals 4 and 5 will be established.
Sound signal:
When terminal 3 receives a sound input, the sound signal will be audible. The sound signal consists
of 2 “beeps” per second. The duration of a ”beep” is 0.1 second.
Light signal:
When terminal 2 receives a light input, the light signal will be visible. The sequences of the light
signal are shown below. The duration of a sequence is 1.4 second.
= LIGHT
