EXM GSM/GPRS Built-In Module
Each x-Messenger CPU has an integrated industrial grade Quad band GSM module inside. The x-Messenger will work with
the following GSM network frequencies:
850 MHz
900 MHz
1800 MHz
1900 MHz
and will automatically search for a frequency to which it can establish a connection when power is applied and a SIM card
installed.
NOTICE:
All x-Messenger CPUs support a GSM module except the EXM-12DC-DA-RT-WIFI.
3.7.1. How to Establish Connection between CPU and PC Using GPRS
The following connection diagram is a typical configuration when a CPU to PC connection using GPRS is required.