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(38889) Async Host OVERVIEW Local data communications are simple with the Black Box Asynchronous Local RS-323 Mux. It comes with an integral four-wire limited-distance line driver. Why buy a mux and a line driver separately when you can get both in one convenient package? The async time-division multiplexors support up to 4, 8, or 16 channels.
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Power — 115-VAC, 60-Hz external power supply Size — 38887, 38889: 1.7"H x 7"W x 5.3"D (4.3 x 17.8 x 13.5 cm); 38891: 2.2"H x 7"W x 5.3"D (5.6 x 17.8 x 13.5 cm) Weight — 38887: 2.5 lb. (1.1 kg) Why Buy From Black Box? Exceptional Value.