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<html><head><meta http-equiv="Content-Type"content="text/html; charset=gb_2312-80"><meta name="GENERATOR" content="Microsoft FrontPage Express 2.0"><title>RS-232通信口大全</title></head><body background="../images/bkground.gif" bgcolor="#FFFFFF"bgproperties="fixed"><p align="center"><a name="top"></a><font color="#0080C0"><marqueewidth="75%">RS-232,RJ45通信口引脚汇编</marquee></font></p><p align="center"><a href="#9pin">9针232口引脚</a> <ahref="#25pin">25针232口引脚</a> <a href="#25Parallel">25针并口引脚线</a><a href="#rj45">RJ45网络头引脚</a> </p><p align="center"><a href="#SerialInterface">串口接打印机的接线</a></p><hr><p align="center"><a name="9pin"></a>9针引脚表</p><div align="center"><center><table border="1"> <tr> <td>1 </td> <td>DCD</td> <td>载波检测</td> </tr> <tr> <td>2 </td> <td>RxD</td> <td>接收数据</td> </tr> <tr> <td>3 </td> <td>TxD</td> <td>发送数据</td> </tr> <tr> <td>4 </td> <td>DTR</td> <td>数据终端就绪</td> </tr> <tr> <td>5 </td> <td>Ground</td> <td>地</td> </tr> <tr> <td>6 </td> <td>DSR</td> <td>数据置位就绪</td> </tr> <tr> <td>7 </td> <td>RTS</td> <td>请求发送</td> </tr> <tr> <td>8 </td> <td>CTS</td> <td>允许发送</td> </tr> <tr> <td>9 </td> <td>RI</td> <td>振铃指示</td> </tr></table></center></div><p align="center"><a href="#top">返回</a></p><hr><p align="center"> </p><p align="center"><a name="25pin"></a>25针引脚表</p><div align="center"><center><table border="1"> <tr> <td>1 </td> <td>Screen Shell</td> <td>保护地</td> </tr> <tr> <td>2 </td> <td>TxD</td> <td>发送数据</td> </tr> <tr> <td>3 </td> <td>RxD</td> <td>接收数据</td> </tr> <tr> <td>4 </td> <td>RTS</td> <td>请求发送</td> </tr> <tr> <td>5 </td> <td>CTS</td> <td>允许发送</td> </tr> <tr> <td>6 </td> <td>DSR</td> <td>数据置位就绪</td> </tr> <tr> <td>7 </td> <td>Ground</td> <td>地</td> </tr> <tr> <td>8 </td> <td>DCD</td> <td>载波检测</td> </tr> <tr> <td>9 </td> <td> </td> <td>作调试用</td> </tr> <tr> <td>10</td> <td> </td> <td>作调试用</td> </tr> <tr> <td>11</td> <td>NULL</td> <td>未用</td> </tr> <tr> <td>12</td> <td> </td> <td>第二路载波检测</td> </tr> <tr> <td>13</td> <td> </td> <td>第二路允许发送</td> </tr> <tr> <td>14</td> <td> </td> <td>第二路发送数据</td> </tr> <tr> <td>15</td> <td>SendClock</td> <td>发送时钟</td> </tr> <tr> <td>16</td> <td> </td> <td>第二路接收数据</td> </tr> <tr> <td>17</td> <td>ReceiveClock</td> <td>接收时钟</td> </tr> <tr> <td>18</td> <td>NULL</td> <td>未用</td> </tr> <tr> <td>19</td> <td> </td> <td>第二路请求发送</td> </tr> <tr> <td>20</td> <td>DTR</td> <td>数据终端就绪</td> </tr> <tr> <td>21</td> <td> </td> <td>信号质量检查</td> </tr> <tr> <td>22</td> <td>RI</td> <td>振铃指示</td> </tr> <tr> <td>23</td> <td> </td> <td>数据信号速率选择</td> </tr> <tr> <td>24</td> <td>SendClock</td> <td>发送时钟</td> </tr> <tr> <td>25</td> <td>NULL</td> <td>未用</td> </tr></table></center></div><p align="center"><a href="#top">返回</a></p><p> </p><hr><p align="center"><a name="25Parallel"></a>25针并行口引脚表</p><div align="center"><center><table border="1"> <tr> <td align="center">Signal pin</td> <td align="center">Return Pin</td> <td align="center">Signal</td> <td align="center">Direction</td> <td align="center">Description</td> </tr> <tr> <td>1</td> <td>19</td> <td><u>STROBE</u></td> <td>IN</td> <td>STROBE pulse to reaed data in. Pulse width must be more than 0.5<p>microseconds at the receiving terminal</p> </td> </tr> <tr> <td>2<p>3</p> <p>4</p> <p>5</p> <p>6</p> <p>7</p> <p>8</p> <p>9</p> </td> <td>20<p>21</p> <p>22</p> <p>23</p> <p>24</p> <p>25</p> <p>26</p> <p>27</p> </td> <td>DATA1<p>DATA2</p> <p>DATA3</p> <p>DATA4</p> <p>DATA5</p> <p>DATA6</p> <p>DATA7</p> <p>DATA8</p> </td> <td>IN<p>IN</p> <p>IN</p> <p>IN</p> <p>IN</p> <p>IN</p> <p>IN</p> <p>IN</p> </td> <td>These signals represent information in the 1st to 8th bits of parallel data, respectively. Each signal is HIGH when data is logical 1 and LOW when it is logical 0.</td> </tr> <tr> <td>10</td> <td>28</td> <td><u>ACKNLG</u></td> <td>OUT</td> <td>About an 11-microsecond pulse.LOW indicates that data has been received and that the printer is ready to accept more data.</td> </tr> <tr> <td>11</td> <td>29</td> <td>BUSY</td> <td>OUT</td> <td>A HIGH signal indicates that tyhe printer cannot receive data.The signal goes HIGH in the following cases:<p>1)During data entry (ea.char.time)</p> <p>2)During printing</p> <p>3)When off line</p> <p>4)During a printer-error state</p> </td> </tr> <tr> <td>12</td> <td>30</td> <td>PE</td> <td>OUT</td> <td>A HIGH signal indicates the printer is out of paper</td> </tr> <tr> <td>13</td> <td>-</td> <td>SLCT </td> <td>OUT</td> <td>Pulled up to 5V through 3.3k ohm resistance.</td> </tr> <tr> <td>14</td> <td>-</td> <td><u>AUTO</u><p><u>FEED</u></p> <p><u>XT</u></p> </td> <td>IN</td> <td>When this signal is LOW,the paper is automatically fed 1 line after printing.(The same effect can be achieved with SelecType).</td> </tr> <tr> <td>15</td> <td>-</td> <td>NC</td> <td>-</td> <td>Not used.</td> </tr> <tr> <td>16</td> <td>-</td> <td>GND</td> <td>-</td> <td>LOGIC ground level.</td> </tr> <tr> <td>17</td> <td>-</td> <td>CHASSIS<p>GND</p> </td> <td>-</td> <td>Printer's chassis ground,which is isolated from the logic ground.</td> </tr> <tr> <td>18</td> <td>-</td> <td>NC</td> <td>-</td> <td>Not used.</td> </tr> <tr> <td>19-30</td> <td>-</td> <td>GND</td> <td>-</td> <td>Twisted-pair return signal ground level.</td> </tr> <tr> <td>31</td> <td>-</td> <td><u>INIT</u></td> <td><u>-</u></td> <td>wHEN THIS LEVEL VECOMES low,THE PRINTER CONTROLLER IS RESET TO ITS POWER-UP STATE AND THE PRINT BUFFER IS cleared.This level is usually HIGH;Its pulse width must be more than 50 microseconds at the receiving terminal.</td> </tr> <tr> <td>32</td> <td>-</td> <td><u>ERROR</u></td> <td>OUT</td> <td>This level becomes LOW when the printer is:<p>1)in a paper-out state</p> <p>2)off line</p> <p>3)in an error state</p> </td> </tr> <tr> <td>33</td> <td>-</td> <td>GND</td> <td>-</td> <td>Same as for Pins 19-30</td> </tr> <tr> <td>34</td> <td>-</td> <td>NC</td> <td>-</td> <td>Not used</td> </tr> <tr> <td>35</td> <td>-</td> <td>-</td> <td>OUT</td> <td>Pulled up to 5V through 3.3K ohm resistance.</td> </tr> <tr> <td>36</td> <td>-</td> <td><u>SLCT IN</u></td> <td>IN</td> <td>The DC1/DC3 code is valid only when this signal is "HIGH".(The same effect can be achieved with SelecType.)</td> </tr></table></center></div><p align="center"><a href="#top">返回</a></p><hr><p align="center"><a name="rj45"></a>RJ45网络头引脚</p><div align="center"><center><table border="1"> <tr> <td><strong>针脚</strong></td> <td><strong>信号</strong></td> <td><strong>功能</strong></td> </tr> <tr> <td>1</td> <td>TxData+</td> <td>发送数据</td> </tr> <tr> <td>2</td> <td>TxData-</td> <td>发送数据</td> </tr> <tr> <td>3</td> <td>RxData+</td> <td>接收数据</td> </tr> <tr> <td>4</td> <td>没设计</td> <td>电话接头</td> </tr> <tr> <td>5</td> <td>没设计</td> <td>电话接头</td> </tr> <tr> <td>6</td> <td>RxData-</td> <td>接收数据</td> </tr> <tr> <td>7</td> <td>没设计</td> <td>网络测试</td> </tr> <tr> <td>8</td> <td>没设计</td> <td>网络测试</td> </tr></table></center></div><p align="center"><a href="#top">返回</a></p><hr><p align="center"><a name="SerialInterface"></a>针打串行接口</p><div align="center"><center><table border="1" bordercolorlight="#C0C0C0"> <tr> <td>Pin number</td> <td>Signal </td> <td>Signal direction</td> <td>description</td> </tr> <tr> <td>2</td> <td>TXD</td> <td>OUT</td> <td>Transmits data for X-on/X-off</td> </tr> <tr> <td>20</td> <td>DTR</td> <td>OUT</td> <td>Indicates whehter or not the printer is ready to receive data "Mark" level indicates printer is not ready to receive data.</td> </tr> <tr> <td>3</td> <td>RXD</td> <td>IN</td> <td>Receives data</td> </tr> <tr> <td>11</td> <td>REV</td> <td>OUT</td> <td>Same as DTR</td> </tr> <tr> <td>4</td> <td>RTS</td> <td>OUT</td> <td>Request to send</td> </tr> <tr> <td>7</td> <td>SG</td> <td>-</td> <td>Signal(logic)ground level</td> </tr> <tr> <td>1</td> <td>CG</td> <td>-</td> <td>Printer chassis ground</td> </tr></table></center></div><p> </p><table border="0"> <tr> <td><font color="#000000"><em><strong>数据格式:</strong></em> </font></td> <td>1个起始位<p>8个数据位</p> <p>奇、偶或无校验</p> <p>1个停止位</p> </td> </tr> <tr> <td><font color="#000000"><em><strong>波特率:</strong></em></font></td> <td>300,1200,9600,19200BITS </td> </tr></table><p align="center"><a href="#top">返回</a></p></body></html>⌨️ 快捷键说明
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