[Elecraft] Pinout for KAT500 1/8th inch serial "PC Data" plug/socket

[Joe Subich, W4TV]

> Anyone here know the serial port pinout of the 1/8 inch "stereo"
> plug and socket on the KAT500 rear panel? 
I use the serial cable that came with my XG3 ...

XG3 User Manual/Schematic shows serial in (PC TxD - pin 3) on tip and
Serial Out (PC RxD - pin 2) on ring.  Common/ground (PC pin 5 and shell)
is sleeve.

73,

    ... Joe, W4TV

On 2025-07-08 2:51 PM, Lu Romero (mobile) via Elecraft wrote:
> All:
> 
> Anyone here know the serial port pinout of the 1/8 inch "stereo" plug and socket on the KAT500 rear panel? Im looking to remotecontrol the tuner using a serial device server. The device server has a DB9 socket, so I need to make a DB9 to 1/8 inch plug cable to control the tuner remotely.
> I looked in the manual, however, I cant find a pin out of the plug there.
> Would be nice to have the signal designations as well for the TRS plug so as to make up the cable correctly.
> Luis Romero - W4LT
>