USB-CIF31 is a true USB to RS232 interface converter

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the driver simulate the computer's USB interface to the traditional RS232 serial port (commonly known as the COM port), which can be used on a variety of programming software, communications software, monitoring software and other applications. The working power of the cable from the USB port, no external power supply needed. The light-emitting diodes on the converter box indicates power status and data transceiver state.

The RS232 port of USB-CIF31 is standard DTE interface (DB9M pin holder, the same as the computer's RS232 serial port), the signal arranged as the following table:

Pin No.
Signal names
Carrier signal
Receive data
Send data
Data Terminal Ready
Signal ground
MODEM ready
Request to Send
Clear to Send
Ringing signal

USB-CIF31 simulats RS232 serial port perfectly, and can even perform hardware I/O operations directly,for programmer just like working on physical RS232 port. USB-CIF31 support the vast majority of PLC programming cable, this is essentially different from similar products commercially available.

Support Windows 7/2000/Windows XP (WinNT4/95/98/Me/DOS NOT SUPPORTED).
Smart LED indicator. Auto identification of optical isolation status.
Obtain power directly from the USB, no external power is required
DTE RS232 port, DB9M pin
Reliable performance & reasonable price

USB-CIF31 is a true USB to RS232 interface converter, in the computer running drive under program control, computer USB interface simulation into traditional RS232 serial ( commonly known as COM ), which used the various existing programming software, communication software and monitoring software application software. The cable working power supply from the USB port, no external power supply, a converter box on the light-emitting diode indicating power state and data receiving state.

very perfect simulation RS232 serial port, or even directly to the hardware I / O operation, to application programmers, as access to the physical RS232. USB-CIF31 supports most of the PLC traditional cable programming, this and market similar products have substaintial distinction.

Method of use:

programming cable USB need to install the device driver to use, these drivers were included in the sale of products on a disc, please refer to the installation method of optical disc video file.

Driver installation is completed, the Windows device manager will appear in USB-SC09 programming cable corresponds to the COM port, only in the programming software or other software application in the COM can, other communication parameters using the default settings, then use with traditional RS232 port programming cable is exactly the same.
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