Activation methods
11
Installation and Programming manual
START INPUT
The START ancillary input is completely programmable, therefore, it
can activate the sounder/flasher by means of either positive signals
(Applied/Removed) or negative signals (Applied/Removed).
STOP INPUT
The STOP signal allows you to force the Ivy unit to standby status
thus blocking all signalling. Once this signal is removed, the device
will restart the evaluation process and if the alarm conditions are
still active, it will trigger the respective signals.
Note
Although the STOP input is fully programmable, the manufacturer
strongly recommends an “applied” signal configuration rather than a
“removed” signal configuration, in order to avoid the risk of disablement
in the event of wire cutting.
LED INPUT
This input (activates when connected to negative) operates as an
ancillary channel which the panel can use to activate any type of
signal, in accordance with the configuration of the Ivy unit.
I-BUS
All I-BUS related activations must be programmed via the intrusion
-control panel. Panel events are capable of generating signalling
directly on the sounder/flasher, without activating terminals or
outputs.
Each event is capable of sending 8 programmable patterns to one or
more Ivy-B sounderflashers configured in the control panel
“Outputs” or “Other outputs”.
Ivy-B sounderflashers can be deactivated from the control panel
using the previously mentioned conditions and also by means of the
“Stop alarms” shortcut, when the control panel is in maintenance
status with the appropriate disarm scenarios, or with the events
associated with the 5 possible “Causes of cut off” (refer to
paragraph
5-3 Programming from a PC
).
3-2
Managing multi-alarm
conditions
There is no priority amongst the various signals. If the Ivy unit
detects signals, it will activate the programmed signalling cycle and,
in the event of concurrent activations, add on the respective signals.
Restoral of a detected signal annuls the respective alarm cycle
automatically, but it does not annul alarm cycles relating to other
signals. The Ivy unit will restore to standby status when all alarm
conditions cease.
