Texas Instruments SN65LBC174A-EP RS-485/RS-422 Quadruple Differential Line Drivers are designed for TIA/EIA-485 (RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications. The SN65LBC174A-EP is optimized for balanced multipoint bus transmission at signaling rates up to 30-million bits per second (Mbps).