Profibus version of Series 750 uses single-fiber topology to transmit data at speeds to 1,500 kbaud, adjustable via DIP switch. Interbus-S version uses double-fiber topology to send data at speeds to 500 kbaud via F-SMA connection. Each buscoupler solves distance and EMC problems common to wiring automation networks. Both incorporate 1,000 mm APF fiber and HP simplex connectors.