RS-485 transceiver med automatisk polaritetskorrektion

Texas Instruments lancerer RS-485, der understøtter særdeles hurtig polaritetskorrektion (in english).

Texas Instruments (TI) introduces a low-power, half-duplex RS-485 transceiver with the fastest automatic bus-polarity correction time. In many industrial applications, such as e-metering networks, DMX512 networks, industrial automation, HVAC systems and process control, it is easy to connect wires incorrectly, which can cause system failure.

For large networks, miswiring without quick correction can cause production delays, resulting in significant revenue loss. When hot-plugged, the SN65HVD888 provides cross-wire immunity 80 percent faster than the competition, detecting and correcting the bus polarity within 76 milliseconds of bus idling. 

The SN65HVD888 is available in a standard 8-pin SOIC package, which eliminates the need for board redesign while providing a robust, reliable upgrade to a standard RS-485 device. In addition, the SN65HVD888 supports up to 256 nodes on the bus, eliminating the need for repeaters.
http://www.ti.com/sn65hvd888-pr-eu.