说明：  java实现代PC机和以太网转串口设备通讯例子，可以用来测试以太网转串口设备的数据收发情况。 在applet目录下为在java applet中如何和模块通讯的例子，在使用时得首先把index.htm和test.jar下载到模块中，然后在ie中输入http://模块IP地址/index.htm来访问。(目前只有ZNET-200T支持此下载功能)
(PC and Ethernet to serial communications equipment example, can be used to test Ethernet switch serial data transceiver situation. The applet directory for the java applet and how communications module example, when used in the first place index.htm and test.jar downloaded to the module, then the input ie http:// module IP address/index.htm to visit. (Currently only ZNET- 200T supports download))