DS3486 (RS-422/423 LINE DRIVERS AND RECEIVERS) Quad RS-422,RS-423 Line Receiver +-----------+ INPUT A- |1 +--+ 16| VCC INPUT A+ |2 15| INPUT B- OUTPUT A |3 14| INPUT B+ TRI-STATE CONTROL A/C |4 DS34 13| OUTPUT B OUTPUT C |5 86 12| TRI-STATE CONTROL B/D INPUT C+ |6 11| OUTPUT D INPUT C- |7 10| INPUT D+ GND |8 9| INPUT D- +-----------+