说明：  XComDrv是个通讯包，包含两个控件源码：TXComm，封装了一个通讯设备的若干特性；TXModem，MODEM与MODEM通讯的控件源码。最新的版本支持：定制流控制；任意波特率；完全的数据控制；指指定事件字字符；收/发数据；插件。TXModem能用来：向MODEM设备发送AT指令；修改MODEM寄存器；拨号；连接；断开。最新版本包含XAsync v.1.2，异步（覆盖式）操作单元。功能无限制。源
(XComDrv is a communications package contains two control source: TXComm, certain characteristics of a communication device package TXModem MODEM and MODEM communication control source. The latest version supports: custom flow control any baud rate completely control the data refers to the specified event word character /receive data plug. TXModem can be used: to send AT commands to the MODEM equipment modify MODEM register dialing connection disconnected. The latest version contains XAsync v.1.2, asynchronous (overlay) operating unit. Features unlimited. Source)