<https://no.farnell.com/c/semiconductors-ics/drivers-interfaces/rs232-rs485-rs422-transceivers>
<http://schema.org/name>
"RS232, RS485, RS422 Transceivers"
<https://no.farnell.com/texas-instruments/max3221eipwr/rs232-transceiver-250kbps-tssop/dp/3006965RL>