It’s sometimes hard to find good information, so here’s the diagram you require!

x5 hookup

 

Once you connect everything up you will need to set the following in Cleanflight

Ports Tab (STEP 1)

UART1 = LEAVE AS IS (For USB connection)
UART2 = SBUS
UART3 = SMART PORT

Configuration Tab (Step 2)

Turn On VBAT
Turn On Telementary
Turn On SBUS
Change Receiver Mode to Serial