AddSecure IRIS-4 Technical Reference Manual page 28

5.3.5.4 Cellular communication tests
The terminal will send a test poll and test alarm message to the ARC to check the
Ethernet connection.
If these are not successful, the terminal will display the failure and possible
reasons. See section 5.3.1.
PSTN Setup & test
5.3.6.1 PSTN connection test
If the PSTN expansion board (EXT2) is fitted and the PSTN network interface is
selected, the terminal will now check the PSTN connection by checking the line
voltage.
If PSTN is not connected, please check the cable and connection to the PSTN line. After reconnecting, it can
take up to 30 seconds to detect.
5.4 Further configuration settings
Additional options
Depending on your terminal type, these additional options are available.
Monitor Dial Port
This sets the terminal to monitor the dial port using the 18K resistor (as
supplied in the box). This resistor should be fitted across the A & B terminal of
the 2-wire analog interface at the alarm panel and allows the terminal to indicate any status change to the
ARC.
The resistor must be fitted at the alarm panel end of the cable to enable the terminal to detect cable faults
and/or tampers correctly. The ARC will also need to enable the dial port monitoring (Panel) on the ISA
receiver software to receive alarm notifications on this status.
Alarm override
This allows the terminal to override and replace the phone and account numbers used by the alarm panel
with the IP address of the ARC and account number entered during configuration. It can be used for dial
port, serial or RS485 connection to alarm panels where you may not have access or cannot change the
account or phone number in the alarm panel itself. This can be useful when converting older alarm panel
sites to work with the IRIS-4 terminal.
Monitor serial
This sets the terminal to monitor the serial ports for activity and report any status changes back to the ARC.
The ARC will also need to enable the serial port monitoring on the ISA receiver software to receive alarm
notifications on this status.
page 28 IRIS-4 Technical Reference Manual 20/03/2025