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3103-1001 Rev. 0
5.4 Horn / Local Buzzer
The operation of the horn relay has been covered to a large extent in the Alarm, Warning and
Trouble sections of this manual. Table 5.2 is a summary of horn relay/local buzzer function. The
horn relay is always configured to be non-fail safe (normally de-energized) and may not be changed.
The local audible buzzer mounted on the front of the unit duplicates the function of the horn relay.
Table 5.4: Horn Relay / Local Audible Buzzer Functions
Pulsing, Energize horn relay, 2 sec.
De-energize horn relay, 2 sec.
Pulsing tone, 2 sec. ON,
2 sec. OFF (50% Duty)
Pulsing, Energize horn relay, 1 sec.
De-energize horn relay, 4 sec.
Pulsing tone, 1 sec. ON,
4 sec. OFF (20% Duty)
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