AddSecure IRIS-4 Technical Reference Manual page 34

The DCE and DTE sockets allow for a converter cable for a D-type connector either as a Data
Communications Equipment type (DCE), equivalent to that on a modem or as a Data Terminal Equipment
type (DTE), equivalent to that on a PC. Cables to convert the header to a 9way D-type can be obtained from
AddSecure.
Note: enabling Full (DCE) or Full (DTE) modes will disable the other serial port RS232 (2).
6.9.3.3.1 Normal
This sets the serial port RS232 (1) to basic mode which only uses the TX1, RX1 and 0V screw terminals
6.9.3.3.2 Full (DCE)
This means the Serial Port RS232_1 will now be in full RS232 mode (all control signals) using the DCE header.
Please contact the sales team for the relevant cable requirements.
6.9.3.3.3 Full (DTE)
This means the Serial Port RS232_1 will now be in full RS232 mode (all control signals) using the DTE header.
Please contact the sales team for the relevant cable requirements.
6.9.3.3.4 Espa
The terminals also support the Espa protocol on the serial RS232 interface. Alarm panels for communications
with pagers and other text transmission systems commonly use this protocol. In this mode, the terminal
converts the display messages sent by the panel using the Espa protocol to either SIA or XSIA format
messages (use the Espa settings option); and then transmits these to the ISA system at the ARC. For more
information about this mode, see the alarm panel specific documentation available from AddSecure.
6.9.3.3.5 Espa settings
This lets you change the format of the alarms transmitted.
6.9.3.4 Serial settings
This option lets you modify the baud rate and parity of the connection.
RS232 (2)
This is the configuration setting for the second RS232 serial port connections
(TX2 & RX2) and has the following configuration options.
6.9.4.1 Monitor cable
This sets the terminal to monitor the serial port for activity and report any
status change back to the ARC.
For this to work, the ARC must enable the "serial port monitoring" on the ISA receiver software in order to
receive alarm notifications on this status.
6.9.4.2 Report polling fail
This sets the terminal to stop responding to the serial commands if polling has failed. This will then indicate
the failure back to the alarm panel. This lets the site locally indicate communication failures (for EN
standards).
6.9.4.3 Emulation mode: For 4xx and 6xx
This allows you to set up the RS232 (2) port for
several connection options for alarm panel specific
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IRIS-4 Technical Reference Manual.docx 12/01/2023
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