These 2 x 3.5-inch (50 x 90 mm) boards include an IL3685TE isolated RS-485 transceiver, a termination resistors, power-supply bypass capacitors as recommended, screw connections, provisions for header pins, and a DB9 bus connector for PROFIBUS.
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IL3685TE is the world fastest isolated transceiver with data rates to 40 Mbps, is fully PROFIBUS compatible, including the stringent bus differential specifications, and is rated to a full 125C.