Weidmuller GPRS Alarm Unit - Manual (Page 79)

Hardware
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5.6.1 Display "POWER on/off"
LED Description
OFF The supply voltage is turned off.
Lights red
Insufficient power supply
The IE-GPRS-I/O is not ready for operation.
Lights green The supply voltage is turned on.
5.6.2 "Status" display
LED Description
OFF -
Lights red During the phase of initialisation of the IE-GPRS-I/O
Lights green IE-GPRS-I/O in the standby mode
Flashes quickly
green
Connection to the exchange server established
Flashes slowly
green
Message is just being issued
Flashes quickly
red
Error while signalling (if DIP1 OFF)
Flashes slowly
red In the "Programming" mode (DIP1 ON), but long-distance data
transmission connection not yet established
Flashes quickly
red In the "Programming" mode (DIP1 ON) and long-distance data
transmission connection established
5.6.3 "Line" display
"Line" LED Description
OFF offline
Lights green GSM module is ON
Flashes slowly
green GSM module is logged into the GSM network
(SIM PIN OK)
Flashes quickly
green
Call detected, call accepted