Features: UART serial port and RS485 signal converter, RS485 half-duplex transmission, transfer rate up to 10M SMD SOP8 Voltage:3.3V 2.54 Pin Interface RS485 interface, with short circuit protection, fit-7v to +12 v voltageCan be link up to 32 terminal nodes. Send, receive, use the RTS signal control, signal control or FT232RL of TXDEN Package included: 1*UART TTL TO RS485 Converter