I have a scientific instrument that uses a DB9 cable to connect to the standard RS232 port on a computer for communication. I've deconstructed one of the cables as I needed to make another one but I am wondering if this wiring pattern is a standard wiring variation seen with DB9 cables or if it is completely proprietary. I don't want to have to make these cables if I don't have to.
That is a standard
null modem cable with handshake also known as
It is used to connect two DCE devices or two DTE devices together.
DCE (data circuit-terminating equipment) .... example: modem
DTE (data terminal equipment) .................... example: computer
TXD - transmit data RXD - receive data RTS - request to send CTS - clear to send DTR - data terminal ready DSR - data set ready