Apex Xavier provides 2 RS232/RS485/RS422ports: UART(232/485/422)A and UART(232/485/422)B. Gray DB9 connectors from I/O cable are
shown as below:
Figure UART(422/485) Cable and Connectors
2 UART(232/422/485) DP9 connectors pin assignments:
Figure UART(422/485) Pin
UART(232/422/485)A
UART(232/422/485)B
Pin
Signal
Pin
Signal
2
UART(232_RX/485_A/422_T+)A
2
UART(232_RX/485_A/422_T+)B
3
UART(232_TX/485_B/422_T-)A
3
UART(232_TX/485_B/422_T-)B
5
GND
5
GND
6
UART(422_R-)A
6
UART(422_R-)B
7
UART(422_R+)A
7
UART(422_R+)B