Fujitsu WOxK112LCT Design & Technical Manual page 123

Connections
z „
The remote control must be connected to the
connector X86 (terminal 1, 2, 3) of the heat pump
controller board.
To do this, you can use a 0.5mm² cable of the two-
pair telephone cable type.
Terminal C75
1
2
3
If the cable is shielded, the shielding can be
connected to the controller terminal 2. It may under
no circumstances be connected on both sides, i.e.
heat pump regulator side and room unit side.
Control terminal
X86 terminal 1
X86 terminal 2
X86 terminal 3
- (CS01 - 78) - - (CS01 - 78) -
Function
BSB data
BSB ground
Power supply DC12V
Control system