Trane techview db9 null modem serial

[afak]

Hi to every one
Pleas I need the Trane Techview db9 rs232 serial pin-out map, which used to connect laptop to Trane chiller panel. Thanks in advance.

[frank]

https://www.db9-pinout.com/

Plenty of information available with your friend GOOGLE

[afak]

Thank you dear frank very much for response .