What type of rs232 wiring is this?

[Chriss]

Hi!
I have to change a broken 9pin rs232 connector where the pin no 1,3 and 4 are broken, pulled out and the whole connector is crashed.

I never saw such of type of connection where pin no 1, 3 and 4 are used.

The device is a kind of "calibrator zurf" from a tractor.

What type of wiring is this?
I know the common type like gnd, rx and tx 3 wire connection.

[Psi]

It's probably not RS232 at all but some other signals using a DB9 connector.
They aren't exclusively a connector for RS232.

[Siwastaja]

There is no such thing as "rs232 connector".

It can be anything, only the user manual will tell what it is. If you can say which tractor (make/model) then maybe someone will chime in.

[wraper]

It could be RS-232 with a different pinout or something entirely different. For example Sartorius precision balances were notorious for using a different RS-232 pinout to sell cables at exorbitant price.

[Chriss]

The device is not tractor specific, it is also not an oem device.
But yes, probably the main misunderstanding by me was/is that I saw the rs232 connector but probably the manufacturer use the gnd, rx,tx wires also but on a different pinout of the connector...