Model 4WSD9R is three different converters in a single package. Whether you need to convert RS-232 to 4-wire RS-422, 2-wire RS-485 or 4-wire RS-485, this converter can do them all!
Simple dip switch selection of modes. Operates port- powered or with a +12VDC power supply.
Using B&B's bitwise enable circuitry ensures a fast turn around time at any baud rate without changing parts. Compact, just 3.0 x 1.6 x 0.8 in (7.8 x 4.3 x 2.0 cm) . DB9 female connectors on both sides.
The RS-485 pin-outs of this unit match a SMPTE (video standard) compatible controlling device.
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