IRIS-4 Technical Reference Manual.docx 12/01/2023 page 9
3 Circuit board layouts
3.1 The 160
Sys LED indications
LED
color
Light
Indication
Flashing Default state not currently configured.
Constant Successfully connected, but still outstanding faults. See
section 9.1, “Trouble report”.
Flashing Bluetooth mode, but no active connection.
Constant Bluetooth mode with an active connection.
Communicating, no current faults (flickers on every poll)
①= Release clip
②= Sense screw terminal
③= DC power screw terminals
④= Micro USB connector
⑤= Serial (TTL) connector
⑥= RS485 screw terminals
⑦= RS232 screw terminals
⑧= Relay outputs screw terminals
⑨= Dial capture port screw terminals
⑩= Pin input screw terminals
⑪= Bluetooth button
⑫= Ethernet connector
⑬= Battery case
⑭= SIM card holder
⑮= Cellular antenna
⑯= Sys LED
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