Mura bhfuil do shuíomh liostaithe, roghnaigh ceann amháin díobh seo a leanas le do thoil:
Maxim Integrated
IC RS485/422 TRANS QUAD 16TSSOP.
Texas Instruments
IC RS485 TRANSCEIVER 3.3V 8-DIP.
IC DIFFERENTIAL BUS TXRX 8-DIP.