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4EVAC IMPACT Panduan Pengguna
Hacousto Holland bv
Industrieweg 87
2651BC Berkel & Rodenrijs
CONTROLLER user manual

Relay outputs

The Controller features 4 potential-free relay outputs to external devices. Each output has individual 3 pins:
normally open,
normally closed,
common.

4.11.1. EVAC

Activated (closed) during EVAC mode, where at least one zone of the voice evacuation system is
transmitting an automatic EVAC message or LIVE EVAC signal from a fireman microphone.

4.11.2. FAULT

Activated (closed) while the fault status is reported by the voice evacuation system. Also activated when
the Controller is not powered.

4.11.3. RESET

Activated (closed) immediately after a manual reboot of the system is triggered on the front panel. The
active pulse length of the reset signal is configurable from 0 (disabled) to 5000ms in the configuration
settings.

4.11.4. USR DEF

This relay output is not in use.

EVAC inputs

There are 16 monitored inputs dedicated to triggering signals for evacuation, silence and reset instructions
from an external fire detection system, as well as any other events, including commercial activities.
Each of these inputs has 1 triggering pin, with a common ground level for all inputs. EVAC inputs have built-
in DC monitoring which requires two resistors of 4.7kΩ + 10kΩ in order to detect input active/inactive states
as well as short and open faults. The EOL resistors must be located directly at the triggering output inside
of the external device (i.e. fire detection system) to provide reliable surveillance of the entire link.
EVAC inputs must receive an activation signal of at least 100ms in order to trigger events. Pulses shorter
than 100ms will be ignored.
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