There are two UART multiprotocol ports (RS232 / RS485 / RS422) and one CAN interface available on SBC LYNX.
UART interfaces are named as MPUART0 and MPUART1. They are associated to i.MX6UL's native UART8 and UART3 respectively. They are routed to connectors through Intersil ISL3330 transceivers (one for each port).
Generally speaking, multiprotocol UARTs
====Connector's pinout====
=====RS232 on DB9=====
{|class="wikitable" style="text-align: center;"
!Pin #
!Signal
!Notes
|-
| 1||signal||notes
|-
| 2||signal||notes
|-
| 3||signal||notes
|-
| 4||signal||notes
|-
| 5||signal||notes
|-
| 6||signal||notes
|-
| 7||signal||notes
|-
| 8||signal||notes
|-
| 9||signal||notes
|-
|}
=====RS422 on DB9=====
=====RS485 on DB9=====