Description: This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps. Board requires a very low amount of power and can operate from a single +3.3VDC supply. Breakout board includes the SP3485 RS-485 transceiver, filter capacitor, and other components shown on the schematic. We've broken out the RS-485 output to three different connections: (1) an RJ-45 connector, (2) a 3-pin 3.55mm screw terminal, and (3) a 3-pin 2.54mm pitch header; none of these output connectors are supplied. Specification: Material: plastic + electronic components Product detailed size: 27.9x 22.8mm/1.10x0.90inch Fully equipped with SP3485 RS-485 transceiver and supporting components Operates from a single +3.3V supply Interoperable with +5.0V logic RS-485 input/output broken out to RJ-45 connector, 3.5mm screw terminal, and 2.54mm pitch header Driver/Receiver Enable connected to RTS line -7V to +12V Common-Mode Input Voltage Range Allows up to 32 transceivers on the serial bus Driver Output Short-Circuit Protection Package Includes: 1 Piece RS485 to TTL module