AddSecure IRIS-4 Technical Reference Manual page 10

3 Circuit board layouts
3.1 DS2220/IRIS-4 50
① = Signal strength/default button
② = USB micro connector
③ = Cable harness loom, with colour coded identification
④ = Cellular antenna connection
⑤ = Terminal Activation Code (TAC)
⑥ = Plastic SIM card (optional)
⑦ = Panel interface status indicator (red)
⑧ = Cellular status indicator (yellow)
⑨ = Terminal status LED indicator (green)
Sys LED Indications
page 10
Light Indication
LED
color
Flashing Fault.
Constant Communicating, no current faults.
Off Cellular not registered.
Flickers on Cellular registered but no data connection.
Flashing Cellular connected but not polling to ARC.
Constant Successfully polling over cellular to ARC (flickers on every
poll).
Flashing Panel interface fault, either Dial Capture, tamper, pin
input tamper or no serial activity. Note each of these fault
notifications are disabled by default
Constant Panel interface – no faults.
All Will flash together for a short period when the terminal
has been defaulted. Will blink together for a short period
if the terminal is installing new software which it has
received.
IRIS-4 Technical Reference Manual 20/03/2025