If they are both male, you likely need the null modem. That is if they are spec. Sadly, many devices back in the day had their own (made up) spec. Back in the olden days, I can remember cutting traces and running jumpers. You can throw in that one would be memory address and another port addressed. Believe me, it was an abomination at times.
Today, it should be easy. Note I said should be. I think Wikipedia has a pretty decent tutorial on pin outs that you can expect and compare things. To work straight through, on has to be modem and the other terminal – that refers to the swapping of Tx/Rx (DCE/RTE) that I mention previously.
If you can find it, download the HiPro manual and it should provide pin outs. Or PM @audiometrix_hearing to sell you the right USB>RS233 unit that he is delivering with them.
In telecommunications, RS-232 or Recommended Standard 232 is a standard originally introduced in 1960 for serial communication transmission of data. It formally defines signals connecting between a DTE (data terminal equipment) such as a computer terminal or PC, and a DCE (data circuit-terminating equipment or data communication equipment), such as a modem. The standard defines the electrical characteristics and timing of signals, the meaning of signals, and the physical size and pinout of The R...
You’re ignoring this member’s posts.
The price of tea in China remains as it has been for some time. 