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Our connect series dimmers come in 2 different versions - Masters and Slaves.
3 and 4 gang dimmers only come in a master option but can still be connected to slave dimmers in 1 and 2 gang
In any case when wiring 2-way or multiway dimmers there MUST only ever be one master dimmer and all other connected dimmers to the same circuit MUST be slave versions.
2-way and Multiway switching will not work if a master is connected to master dimmer with 3 core wiring.
You can have 5 Slaves wired in multiway switching to 1 Master dimmer
2-way switching involves the switching of one light circuit from more than one location (e.g. hall and landing). It requires one Lightwave dimmer and up to 6 Lightwave 2-way dimmers. Each requires power and a direct connection between the S terminals on each device (do not insert the live into the S terminal).
In a standard 2-way switching arrangement, you may find that there is an L1 and L2 cable used. This is used to switch mains power between one of these cables, so that either light switch can control the lights. Lightwave does not require this. We can use one of these cables to directly carry a low voltage signal between the Master and Slave unit. You may find that your cables are coloured differently, but the same theory will apply. You must put the Live from the ring main into the L terminal, the switched live that goes to the bulb in the 'X' looking symbol and a direct connection from the S terminal to the corresponding S terminal on the Slave.
There are 2 PDFs attached to this article with a diagram for 2 way switching.
COM, L1, L2 Terminals :
A one way light switch has two terminals which is a common marked as COM or C. The common is for the live wire that supplies the input voltage to the switch. The other terminal is marked as L1 and is the output to the light fixture.
So the Wire in the COM goes into the L and the wired in the L1 goes into the X terminal. Please do not insert any cables into the middle S terminal.
https://www.downlights.co.uk/faq-wire-light-switch.html
If in any doubt, please consult an electrician as incorrect wiring can have fatal consequences. We are not electricians and legally cannot tell you how to wire your specific installation, but we can advise on where the cables should go.