AddSecure IRIS-4 Technical Reference Manual page 19

4.2.4.2.1 RS485 connections (Honeywell Galaxy or Risco ProSys)
Where fitted, you can use the screw terminal blocks or the 4-pin header. The connections for the screw
terminals are:
I RS485 screw
terminals
0V (Power)
VIN (Power)
A
B
TTL connections
The requisite cable, Texecom RS232 Lead, part no. Tex600, can be ordered from AddSecure
4.2.4.2.3 RS232 connections
These are used with several panels such as HHL, ESPA fire panels, Notifier, Protec, EBL Talk, and CTEC. The
actual panel for your installation can be selected in Settings, see section 6.9 "Panel Interface".
RS232 screw
terminals
TX2
RX2
0V
4.2.4.3 Power Supply
The terminal can be powered using a separate 9-28V DC power supply specified to deliver at least 1A current
to the screw terminals or receive power directly via the RS485 or Serial TTL connectors.
Note: to comply with the Radio Equipment Directive, the power cable must be no longer than 3 meters in
length.
Fit the power cable. DO NOT APPLY POWER TO THE TERMINAL UNTIL INDICATED.
Honeywell Galaxy
Data Bus terminal
Galaxy (-)
Galaxy (+)
Galaxy (A)
Galaxy (B)
HHL com port DB9 Male connector
2 (RX) Pin 2 (RX)
3 (TX) Pin 3 (TX)
1 (GRD) Pin 5 (GRD)
IRIS-4 Technical Reference Manual 20/03/2025
Risco ProSys Bus1
terminal
Com
AUX
YEL
GRN
4.2.4.2.2 Serial
page 19