From Esprit Model:
The innovative Futaba S.Bus system lets you unleash your flight system’s full potential and cut down on cable clutter at the same time. Emcotec DPSI 2018 uses digital serial data communication technology to transmit control signals between your receiver and standard or S.Bus/Sbus2 servos. A single S.Bus cable can carry signals to as many channels as your transmitter can handle. You no longer have to worry about plugging in the wrong servo to the wrong channel, because each servo knows what channel it is dedicated to in advance. The Emcotec 2018 power distribution system can manage up to four different power servo lines as well as additional 10 standard PWM channel and fully supports Jeti Duplex communication protocol up to two receivers set to serial EX Bus output as well as two power batteries can be connected at the same time to the DPSI 2018 unit for complete Power & Signal redundancy.
The Emcotec DPSI 2018 power and signal distribution system provides servo management for two S.Bus (A1 + A2, B1 + B2) and one PWM (Channel 1-8/9-16 and 17, 18) output channel lines using independent, voltage selectable regulators. Each one of the output channel lines can be independently set for 5.4, 6, 6.6 or 7.4V. Dual receivers are connected to the PWM (C) line sharing same voltage as PWM channels 1-8/9-16 (Programmable) and channels 17 and 18 for complete signal redundancy.
More Information: https://www.espritmodel.com/emcotec-dpsi-2018-jeti-duplex-power-distribution-system-s-bus-w-telemetry.aspx