Midea MIH15GN18 Manual De Usuario E Instalacion página 59

5
External board connection (limited to ODU and system configuration)
The external board is a connection module outside the main control board, including a function module adapter board,
and optional function expansion boards 1 and 2.
1. Display panel connection
The display panel is connected to the main control board through a 4-core cable, and is connected to the "CN30"
socket of the main control board, as shown in the following figure:
2. Function module adapter board connection
Function expansion boards can communicate with the main control board through the adapter board. You can use one
or both of the two function expansion boards. The wiring diagrams are as follows:
Use function expansion board 1#
CN1
Function
module
adapter
board
CN2
CN1
Function expansion
board 1#
Use function expansion boards 1 and 2
CN1
Function
module
adapter
board
CN2
CN1
Function expansion
board 1#
[ Caution ]
For the function introduction of the function module adapter board, function expansion board 1#, and function
expansion board 2#, please refer to the function module manual.
Display panel
CN18
Main
control
board
CN18
Main
control
board
CN1
Function expansion
board 2#
CN30
Main
control
board
Use function expansion board 2#
CN1
Function
module
adapter
board
CN2
CN1
Function expansion
board 2#
54
Installation
CN18
Main
control
board