SCOM-100, User guide 7
1.2 LED indications
1: Power indicator: Turns on after power up.
2: Four LEDs indicating the digital output states.
3: Turns on while sending or receiving an SMS.
4: Turns on if an error occurs during operation. See
sections 9.4 and 9.5 for details.
5: Monitors the device status (RUN/ MONITOR/
STOP). See sections 6.1 and 9.5 for details.
6. Flashes during device start up. Remains on if the
device is ready for operation. Turns off if one or more
operating conditions fail. See section 9.5 for details.
7. Flashes if a connection to the GSM provider is
established.
8. Four LEDs indicating the digital input states.