Introduction - ICP DAS USA GTM-204M Series User Manual

GTM-204M-4G Series User's Manual v1.3

1. Introduction

The GTM-204M-4GE is an industrial 4G LTE and Quad-band GSM modem with
RS-232 and USB interfaces that work at frequencies of FDD LTE B1/B3/B5/B7/B8/B20 and
WCDMA 850/900/2100 MHz and GSM 850 MHz, EGSM 900 MHz, DCS 1800 MHz , PCS
1900 MHz. The modems utilize the 4G or 3G or GPRS network to transfer data. The
features of the GTM-204M-4GE allow a variety of PLC and PC applications to take
advantage of SMS and 4G or 3G or GPRS connectivity.
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