DS8934 (RS-422/423 LINE DRIVERS AND RECEIVERS) V.34 Serial Port 5x3 Driver/Receiver +-----------+ VEE |1 +--+ 24| VCC DIN1 |2 23| RC1 ROUT1 |3 22| DOUT1- DIN2 |4 21| RIN1- ROUT2 |5 20| RC2 ROUT3 |6 DS89 19| DOUT2- GND |7 34 18| RIN2- DIN3 |8 17| RIN3- DIN4 |9 16| RC3 DIN5 |10 15| DOUT3- RC5 |11 14| RC4 DOUT5- |12 13| DOUT4- +-----------+