The non-standard COM device 3.1

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ABOUT The non-standard COM device

The Driver use COM port of the computer as parallel! You have 2 lines on the write and you have 4 lines on the read. You can use the TxD line for data transmitt! The driver is the ActiveX. You can use its in some Programming language. (ActiveX™ is registered trademarks of Microsoft Corporation). Your device must be the V.24 compatible (CCITT standard for definition of circuits between a DTE and DCE)