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IRIS Touch
Engineering Manual Version 1.4
4K7 Resistor
15K Resistor
1
4
Reference ground
pins
Pin inputs
The interface to the fire control equipment should be via dialler inputs (pins) and relay outputs, as described
below. The dialler’s ‘Dial Capture’ interface that emulates a PSTN line should not be used as it does not provide
adequate status signaling back to the control equipment. The Serial communication lines can be used for
additional information but must not be used as the primary signaling method.
The dialler must be set to the EN54-21 mode which can be done in the Settings>Extra Features as shown below:
When this mode is selected, input pins are allocated for the fire application as follows:
Input pin 1 – Fire Alarm/Restore – open circuit = alarm
Input pin 2 – Fire Alarm Fault/Restore – open circuit = fault
The alarm codes generated by these inputs are as follows:
SIA –
Pin 1 FA01/FR01
Pin 2 FT02/FJ02
Contact ID -
Pin 1 Event 111 group 0 zone 1
Pin 2 Event 130 group 0 zone 2
End of line resistors should be fitted for detection of open circuit or short circuit faults:
Wire the fire alarm and fault outputs from the panel to the position in the diagram marked as a switch – open is
the alarm (pin 1) or fault (pin 2) condition and closed is the restore condition.
The dialler provides relay outputs for the following indications which should be wired to corresponding inputs to
the CIE.
1.
Relay B – Indicates that an acknowledgement to a fire alarm signals has been received from the monitoring
centre. This relay is normally open and closes when the acknowledgement is received. It will be opened
when the fire alarm restore signal is transmitted.
2.
Relay A - Fault indication (no acknowledgment received, loss of power to dialler, transmission network fault,
software watchdog restart or configuration memory fault. This relay is normally closed and opens if any of
the above fault conditions are present.
Note – after the EN54-21 mode is selected, it is essential that no other changes are made to the settings for Pin 1
or Pin 2 or to the Relay A or B outputs as this may invalidate conformance to EN54-21.
When all connections have been made, run through the Installation Wizard in the normal way. At the end, make
sure that input alarms for pin 1 and pin 2 are enabled and monitoring for tampers is also enabled.
Other alarm inputs can also be enabled if required from the Settings menu, but do not change the settings for
inputs 1 or 2.
Test alarm and fault activation and restore and confirm correct receipt by the monitoring centre.
When installation has been completed and correct operation confirmed, the label provided in the packaging that
indicates EN54-21 compliance and product type must be fixed to the outer surface of the enclosure in a visible
position.
