There are two UART multiprotocol ports (RS232 / RS485 / RS422) and one CAN interface available on SBC LYNX.
UART interfaces are named as MPUART0 (MX6UL UART8) and MPUART1 (MX6UL UART3). They are associated to i.MX6UL's native UARTs UART8 and UART3 respectively. They are routed to connectors through ISL3330 transceivers (one for each port).
Generally speaking, multiprotocol UARTs