Mitsubishi Electric CAHV-R450YA-HPB Service Manual page 56

[ III Unit Components ]
2. M-NET board
CN04
Bus voltage input
Grounding
HWE22020
CN102
Power supply output for centralized control system
P
Indoor/outdoor transmission line input/output
N
Grounding
CNS2
Transmission line input/output for
centralized control system
Grounding
Ground terminal for
transmission line
TB3
Indoor/outdoor
transmission block
- 47 -
CNIT
12VDC input
GND
5VDC input
Power supply detection output
Power supply ON/OFF
signal input
LED1
Power supply for
indoor
transmission line
TP1,2
TB7
Check pins for
Terminal block for
outdoor
transmission line for
transmission line
centralized control
GB