9
Relay output
1 (Horn Bypass)
– This provides a 200mA positive output feed that can be used to
connect to a separate relay (available separately) so that the Horn can be bypassed when the siren is
operating.
This output is active when either the tone is sounding or when the run input is selected.
The diagram below shows how to connect the HRT input and relay output of the siren amplifier to
additional components to act a horn by pass for either a positive or negative switched horn.
Recommended resistor value: 10K, 0.25W, radial.
Relay output 2 (Beacon Output)
– This provides a 200mA positive output feed that can be used to
connect to a separate relay (available separately) so that a light source can be switched on when
selected by one of the siren controllers.
Sidelights input
Personal Announce (PA)
Various 9005 compatible siren controllers have an inbuilt microphone to broadcast voice over the
sirens speaker. Pressing the Push To Talk (PTT) button on the microphone or handset allows the PA to
operate.
Key:
30
Common contact
87
Normally open contact
87a
Normally closed contact
86
Coil positive input
85
Coil ground return
D00217-00-A
REL: 39983
