[Elecraft] K2/100 RS232 trouble

[David Woolley]

The problem of using a standard cable with the serial port is not that 
it might fail to operate as a serial port, but rather than it might 
permanently destroy the (non-RS232) internal signalling within the 
transceiver.

If that signalling is destroyed, the set won't be able to do anything 
useful, so won't be able to operate the serial port.

In fact there seem to be two pins that are used for signals that cannot 
tolerate RS232 voltages.

This is only a may, because it depends on which wires in the cable are 
actually connected at the other end.  The special cable basically leaves 
some pins unconnected.

-- 
David Woolley
Owner K2 06123
On 10/09/2021 13:12, Andy McMullin wrote:
> You are using the special RS232 cable aren’t you? You must connect with a cable matching the special pinout first. If you try a straight connection it will fail.