Hi,
For those who do not have a WAGO service cable 750-920. Instead, I used an FT232RL (USB to serial TTL) module with 6 pins Output.
The pins connection from top to bottom for WAGO :
Wago_1 (TxD) to FT232_2 (RxD)
Wago_2 (RxD) to FT232_3 (TxD)
Wago_3 (+ 5Vdc) to FT232_4 (+ 5Vdc)
Wago_4 (GND) to FT232_6 (GND).