There was a time when if you bought a USB mouse ... you bought a mouse with a PS/2 connector fitted, it may well have come with an adapter for a 9-pin RS232 serial port. Those mice from a decade ...

Other devices have RS232 ports, usually either DB9 (PCs, enterprise-class network hardware) or RJ45 (Cisco). In order to be ready to connect a laptop to any encountered device, one's commando kit must ...

This supports any serial protocol for communicating with the amps, including RS232 ports, USB serial ports, and possibly the RS232-over-IP interface for more recent Xantech amps. See below for exactly ...

In fact, if you’re really sure you’ll never need that RS232 feature ... as well as breakouts for the data lines in the USB-C connector. In keeping with the theme of the device, that part ...