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DB9 Pin config from device to PC Com1

What pin config do I use in my cable for this device?


 

       Computer Interfacing Forum Index -> RS232
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Mar 11, 2013 3:30 pm

Serial Connector Pin Assignments
Function Pin #
+RS485 XFD (DIFF INPUT/OUTPUT) 1
TXD OUTPUT RS232 2
RXD INPUT RS232 3
NOT USED 4
GND 5
NOT USED 6
NOT USED 7
RTS OUTPUT RS232 8
-RS485 XFD (DIFF INPUT/OUTPUT) 9

I have a device with the above pin assignments. To interface to a PC Com1 port I need to make a cable with the correct pins. The vendor tells me that for RS232 we only need pins 2,3, 5, and 8 but they do not know the pin locations for the PC. How do I do this correctly?

       Computer Interfacing Forum Index -> RS232
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