What you need

The gateway

One CanCan running the Scheiber firmware, product ID 010010005 — either generation. A v2 box needs one extra setting, see below.

On the Scheiber side

A Scheiber SFSP receiver block	the unit that receives the radio from the wireless switches and puts them on the Scheiber CAN bus. Without it the switches are invisible: they talk radio, not CAN
Scheiber SFSP wireless switches	the battery-free wall switches themselves, already commissioned into the Scheiber installation
Scheiber SFSP auxiliary blocks	optional — the lighting output blocks. Discovered automatically, nothing to declare

The Scheiber installation must be working before the gateway is installed. The gateway reads a bus; it does not commission a Scheiber system.

Wiring

Connector	Goes to	Speed
CAN 1	the boat's MUXEN bus	500 kbit/s
CAN 2	the Scheiber CAN bus	250 kbit/s — fixed by the firmware, it cannot be changed by configuration

Both are ordinary 120 Ω CAN buses: two wires and a common ground, one 120 Ω termination at each physical end of each bus and nowhere else. The gateway is terminated only if it happens to be at the end of a segment.

The two buses stay electrically separate. Nothing from the MUXEN bus reaches the Scheiber bus except the lighting commands this firmware deliberately translates.

The box's own inputs and outputs

Two relays, two dry-contact inputs, two analog inputs — available here as on every CanCan, and independent of the Scheiber function. They are off by default; see Reference.