Technics SE-R1 Manuel D'utilisation page 10

System control connection to an SU-R1
≥ You can input digital audio signals to this unit and play back music.
≥ You can automatically link this unit with the SU-R1 and operate them easily with the remote control of the SU-R1. ( 14)
This unit
(rear) SU-R1
Cable for system control
(not supplied)
≥ When using the system control function, set the input selector knob to [DIGITAL]. ( 13)
≥ Use category 7 or above straight LAN cables (STP) when connecting to peripheral devices.
≥ We recommend using cables with a length of 3 m (9.9 ft) or less.
≥ Do not connect an SU-R1 in any other way than described above.
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