User Tools

Site Tools

This translation is older than the original page and might be outdated. See what has changed.



You can receive text messages informing you of your PV plant via GSM modem. This way you notice every outage and alarm. GSM modem enables GPRS communication too, or telephone calls. Functions of GSM modem can be used in other applications as well.

Connecting Aerial and Inserting SIM Card

Connect the aerial with SMA connector to the GSM modem. Then insert the SIM card as in the following picture. The SIM card mustn't have PIN code set up. You can deactivate PIN in a mobile.

Start and Configuration

When you have connected the modules and Solar Monitor unit has been connected to the power supply, green LED diode indicating status should glow. If it doesn't glow, check the wiring of SM2-MU and the module.

Open menu “System set up/ E-mail and SMS” in your browser. Tick GSM modem option box and enter phone numbers. Modem is activated in a few seconds and when it has been finished, you can send a trial SMS by clicking on button “Test SMS”..

You can find here how to configurate SM2-GSM.


RF parameters
Quad-band 850/900/1800/1900MHz
GPRS Multi-slot Class 12, 1~12 configurable
Compliant to GSM Phase 2/2+ Class 4
(2W @ 850/ 900 MHz)
Class 1
(1W @ 1800/1900MHz)
Connector SMA (male)
RS232 HBUS (DIN rail, bottom pluggable, no external wires needed) and RJ12 connector1
Max. distance 12 m
Electrical parameters
Power supply 9-35 V DC, typ. 1 W @ 12V2, 3
Mechanical parameters
Dimensions 53.6 x 89.7 x 62.2 mm
Mounting DIN rail
Screw terminals 0.5 mm² - 1.5 mm² cable cores
Degree of protection IP20
Operating temperature -25 .. +60 °C
LED diodes Status, GSM network

1 … Interface connectors are mutually exclusive. The HBUS interface is intended to be used with the SM2-MU unit module. With the RJ12 connector the SM2-GSM module can be used as an individual GSM/GPRS modem with automatic power management by the DTR signal.

2 … There is no need for additional power supply if module is connected with the HBUS to the SM2-MU. In this case power supply for the SM2-MU should be calculated to provide sufficient power for all modules on the HBUS.

3 … During transmission there can be consumption peak bursts up to 6.4 W.

en/sim/manual/rozsirujici_moduly/sm2_gsm.txt · Last modified: 2018/06/25 13:53 by ondra