
Module
2.2 Description of the LEDs
2.2
Description of the LEDs
Module status displays
After the operating voltage has been connected, the first LED lights up after about 10
seconds.
The 'Run' LED indicates functioning of the module:
Flashing
= module is starting up (takes about 90 seconds)
ON
= module is ready (flashing every 10 seconds)
OFF
= no supply voltage
The 'Com' LED indicates network activity by the module. This LED has a two-part structure.
If both parts light up green, everything is alright and the connection to the GSM network has
been established. If the left part is green and the right part is red, the connection to the GSM
network has been established, but the time has not yet been synchronized.
Flashing green = roaming in the GSM network
Green OFF
= no connection to the GSM network
The 'Busy' LED indicates module activity:
ON
= module is currently active
The module restarts automatically after every data transfer between the PC and the module.
All UI LEDs light up during restarting.
I/O displays
●
The LEDs pertaining to the universal inputs (UI) light up when:
–
Set as a digital input: the input is active (status 1)
–
Set as an analog input: a high or low threshold is reached
●
For each of the digital outputs (DO), an LED lights up when the relay is activated.
GSM alarm module
12
System Manual, 06/2014, 2541304131-01