The GTM-201-3GWA is the new product of industrial Tri-band 3G WCDMA cellular modem with RS-232 and USB interfaces working on frequencies of Tri-band WCDMA 2100/1900/850 MHz, and Quad-band GSM 850/900/1800/1900 MHz. The modem which supports up to 7.2Mbps downlink speed and 5.76Mbps uplink speed services can utilize the 3G/GSM/GPRS network for convenient and inexpensive data transfer from remote instruments, meters, computers or control systems in either live data or packet data. The GTM-201-3GWA enables internet connection over 3G, when 3G service is available. It automatically selects 3G or GPRS to work.
Moreover, the GTM-201-3GWA has the integrated TCP, UDP/IP stack so that even simple controllers with serial communications ports can be connected to the modem without the need for special driver implementation. With the features of GTM-201-3GWA, the systems can be SMS and 3G/GPRS connection applications with various PLC and PC. Moreover, with the voice interface, these modems can also be applied to the alarm system with sounds.
Further, the GTM-201P-3GWA that integrated GPS function is convenient for movement management equipment such as vehicle management system, maritime system, taxi dispatch system, and etc.

• Supply Voltage: +10 VDC ~ +30 VDC
• DIN-Rail mount
• 4 KV ESD Protection
• Support in 3G and 2G
• Tri-band UMTS 850/1900/2100 MHz
• Quad-band GSM/GPRS/EDGE 850/900/1800/1900 MHz
• Designed for Data, SMS and Voice Applications
• Supports TCP Server, TCP Client, UDP Client Connection from GPRS
• Supports Standard AT Commands
• A Digital Input Channel for Resetting the System
• Provide 3.5 mm stereo jack for the MIC Input and Speaker Output Interface
• Provide 3-wire RS-232 operation mode supporting 9600 bps to 115200 bps
• USB2.0 high speed
• USB Driver for Windows, LinPAC (Linux 2.6)
• LED Indicators for 3G/2G and Power Indication
• Supports GPS NMEA 0183 (only for GTM-201P-3GWA)