功能

• The Transceiver Breakout (RS-485) is a breakout board for the SP3485 (RS-485 Transceiver IC) that converts UART inputs and outputs to RS-485. Beca the SP3485 is a half-duplex transceiver, it can communicate in only one direction at a time, but it can transmit at speeds up to 10Mbps. This board operates on a +3.3 V power supply and has very low power consumption. RS-485 I/O is divided into 3 different connections:
• (1)RJ-45 connector,
• (2)3 pin 3.55 mm screw terminal
• (3)3 pin 0.1 inch pitch header
• Note that none of these output connectors are implemented.
• Main Specifications
• Installed Devices: SP3485
• Power supply voltage: +3.3 V
• Interoperable with +5.0 V logic
• RS-485 I/O (RJ-45 connector, 3.5 mm screw terminal, 0.1 inch pitch header)
• Driver/Receiver Enabled Connected to the RTS Line
• Common mode input voltage range: -7 V to +12 V
• Up to 32 transceivers on the serial bus
• Driver output short circuit protection
• Size: 2.28 x 2.54 mm (0.9 x 1.0 inches)