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href="http://www.keystofrance.com/image/cache/catalog/图片2-600x800.png" alt="Gport-G12" title="Gport-G12" class="product_thumb" style="width: 150px;cursor: pointer;"/></a> </td> </tr> <tr> <td class="no-border-left"><span>因特网类型</span></td> <td>GSM/GPRS</td> </tr> <tr> <td class="no-border-left"><span>速率</span></td> <td>85.6Kbps (DL,UL)</td> </tr> <tr> <td class="no-border-left"><span>频率</span></td> <td>850/ 900/1800/1900MHz</td> </tr> <tr> <td class="no-border-left"><span>Multi-Slot类</span></td> <td>GPRS Class 12</td> </tr> <tr> <td class="no-border-left"><span>终端设备类</span></td> <td>Class B</td> </tr> <tr> <td class="no-border-left"><span>编码方案</span></td> <td>CS1，CS2，CS3，CS4</td> </tr> <tr> <td class="no-border-left"><span>最大传输功率</span></td> <td>GSM850/GSM900: Class 4(2W) DCS1800/PCS1900: Class 1(1W)</td> </tr> <tr> <td class="no-border-left"><span>应用</span></td> <td>AT指令集</td> </tr> <tr> <td class="no-border-left"><span>网络协议</span></td> <td>TCP/UDP</td> </tr> <tr> <td class="no-border-left"><span>最大连接数</span></td> <td>5</td> </tr> <tr> <td class="no-border-left"><span>SIM卡</span></td> <td>1.8V/3V</td> </tr> <tr> <td class="no-border-left"><span>天线接口</span></td> <td>SMA</td> </tr> <tr> <td class="no-border-left"><span>端口</span></td> <td>2（UART TTL 3.3V）</td> </tr> <tr> <td class="no-border-left"><span>数据位</span></td> <td>7，8</td> </tr> <tr> <td class="no-border-left"><span>停止位</span></td> <td>1，2</td> </tr> <tr> <td class="no-border-left"><span>校验位</span></td> <td>None，Even，Odd</td> </tr> <tr> <td class="no-border-left"><span>波特率</span></td> <td>600~460800bps</td> </tr> <tr> <td class="no-border-left"><span>流控</span></td> <td>无流控、硬件RTS/CTS、软件Xon/Xoff流控</td> </tr> <tr> <td class="no-border-left"><span>缓存</span></td> <td>4MB Flash+4MB SRAM</td> </tr> <tr> <td class="no-border-left"><span>尺寸</span></td> <td>23.8 x 14.8 x 2.3mm</td> </tr> <tr> <td class="no-border-left"><span>输入电压</span></td> <td>3.4V～4.2V</td> </tr> <tr> <td class="no-border-left"><span>工作电流</span></td> <td>～300mA</td> </tr> <tr> <td class="no-border-left"><span>功耗</span></td> <td>GSM 850：82～189mA EGSM 900：83～203mA DCS 1800：78～150mA PCS 1900：78～136mA</td> </tr> </tbody> </table> </div> <script type="text/javascript"></script> <script type="text/javascript"></script>  <script type="text/javascript"> var $_Tawk_API={},$_Tawk_LoadStart=new Date(); (function(){ var s1=document.createElement("script"),s0=document.getElementsByTagName("script")[0]; s1.async=true; s1.src='https://embed.tawk.to/569f712f942843aa26eb9530/default'; s1.charset='UTF-8'; s1.setAttribute('crossorigin','*'); s0.parentNode.insertBefore(s1,s0); })(); </script> </div> </div> </div> </div> <footer> <div id="footer" class="container"> <div class="copy-right"> <div class="row display-by-media-width"> <ul class="list-inline bottom-link"> <li style="padding: 0 0 0 15px"><a href="http://www.keystofrance.com/index.php?route=information/contact">联系我们</a></li> </ul> </div> <div 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