<p>
<span style="color: rgb(0, 0, 128);"><u><b>Description GSM Terminal TRM-3T USB </b></u></span></p>
<p>
The TRM-3T USB is a reliable and high performance terminal for GSM-R, the new radio system for railways. Due to long standing product experience and innovative technologies this professional terminal is the high-end modem for GSM-R.</p>
<p>
<span style="color: rgb(0, 0, 128);"><u><b>Specifications GSM Terminal TRM-3T USB </b></u></span></p>
<p>
<span style="color: rgb(0, 0, 128);"><b>Technical Data</b></span><br />
• Dimensions 45 x 40 x 20 mm (L x W x H)<br />
<i>(not including the antenna connector)</i><br />
<img align="right" alt="USB Terminal Back" height="203" hspace="6" src="https://www.comm-co.com/jm/images/Rugged/usbterminal_back_trm-3t.jpg&quot; width="240" /><br />
• Weight 70 g<br />
<br />
• Power supply via USB<br />
<br />
• Power consumption Idle mode 30 mA<br />
<i>Speech mode 200 mA (average),<br />
450mA (peak)<br />
GPRS (class 8) 200mA (average),<br />
450mA (peak)<br />
GPRS (class 10) 320 mA (average),<br />
700mA (peak)</i><br />
<i>Inrush current 900mA</i><br />
<br />
• Temperature range Normal operation -20°C to +55°C<br />
<i>Restr. operation -25°C to +70°C<br />
Storage -40°C to +70°C</i></p>
<p>
<span style="color: rgb(0, 0, 128);"><b>Data Services</b></span><br />
• GPRS class 10 max. 86 kbps (downlink)<br />
• PBCCH support<br />
• Coding scheme CS 1-4<br />
• CSD data transmission<br />
<i>Up to 14.4 kbps<br />
USSD<br />
Non transparent mode<br />
V.110</i><br />
• PPP stack for GPRS data transfer<br />
• Fax group 3, class 2<br />
• TCP/IP stack access via AT command protocols:<br />
<i>TCP, UDP, HTTP, FTP, SMTP, POP3</i></p>
<p>
<b><span style="color: rgb(0, 0, 128);">Interfaces</span></b><br />
• USB Interface (USB Mini B connector)<br />
• AT commands via USB CDC ACM interface<br />
• Digital audio via USB<br />
• Voltage supply via USB<br />
• Antenna connector (SMA)<br />
• Indication LED<br />
• Miniature SIM card holder</p>
<p>
<b><span style="color: rgb(0, 0, 128);">Specifications for Voice</span></b><br />
• Triple-rate codec for HR, FR, EFR<br />
• Adaptive multi-rate (AMR)<br />
• Hands-free operation<br />
• Noise reduction and echo cancellation</p>
<p>
<b><span style="color: rgb(0, 0, 128);">System / Standards</span></b><br />
• Quad-band GSM-R / EGSM 900 / GSM 1800 / GSM 1900<br />
• GSM Phase 2 / Phase 2+<br />
• GPRS multi-slot class 10<br />
• Mobile station class B<br />
• Output power<br />
<i>Class 4 (2 W) for GSM-R / EGSM 900<br />
Class 1 (1 W) for GSM 1800 / GSM 1900</i><br />
• Control with AT commands via virtual COM-Port<br />
<i>(USB CDC ACM interface)</i><br />
• SIM Application Toolkit</p>
<p>
<i>The TRM-3T USB can be easily and ad hoc applied for<br />
GSM-R data and voice terminal or modem solutions within<br />
PC, notebook or other process computing environment.</i></p>
<h1>
<span style="color: #ff0000">Downloads</span></h1>
<p>
<a href="https://www.atexshop.com/download/pdf/TagTrans.pdf"><span style="color:#000080;"><img alt="" src="https://www.atexshop.com/images/download.jpg&quot; /> TagTrans</span></a></p>