manual

4 | ENGLISH
The EM6557 Built-In Switch has basically two functions and can be used in several
situations. Not all situations are described in this manual, the three most common
situations are described in this manual. Note that your situation might be different, so
check what is suitable for your situation first.
1. Using the EM6557 in an existing multiway switching situation (hotel switch).
2. Using the EM6557 in a new house or room using all wires.
3. Using the EM6557 in a single switch situation.
2.1 Using in an existing situation (multiway switching)
The EM6557 is suitable for multiway switching, for example in a stairway situation or
in a room with two wall switch buttons to control the lights.
Image 2 – Using the EM6557
Note the following in the above situation:
• Only one of the two black switching wires on the EM6557 is used
• The remaining black switching wire needs to be covered using a terminal block or
wire nut
• The brown live wire between the wall switch and junction box is now used to
connect the white switching cable. Therefore the cable needs to be coloured
white (using adhesive tape for example)
• The brown wire can only be used in this situation if it is coming from the ceiling
junction box. You need to check first where the brown wire is coming from before
connecting it to the EM6557
• If the brown wire is connected to a wall switch with wall outlet, you need to run an
extra wire