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GTM-203M-3GWA User
’
s Manual v1.0
- 1/35 -
1. Introduction
The GTM-203M-3GWA is an industrial Quad-band 3G and Quad-band GSM modem
with RS-232 and USB interfaces that work at frequencies of UMTS 850 / 900 / 1900 / 2100
MHz and GSM 850 / 900 / 1800 / 1900 MHz. The modem utilize the 3G or GPRS network to
transfer data. The features of GTM-203M-3GWA allows a variety of PLC and PC
applications to take advantage of SMS, 3G and GPRS connectivity.
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