Mitsubishi Electric MXZ-SM72TAM-U1 Service Manual page 178

6. Electrical work
E.g. 2. Outdoor + Branch <1> (M, S, P series Indoor A, C, E) + Branch <2> (M, S, P series Indoor A, C, E)
Outdoor
address
(51) *1
en
33
Branch box <1>
address (01) *2
SW1-1, 3, 5 ON
SW1-2, 4 OFF
(01) = A-port
M, S, P series Indoor
non B-port
(02) = C-port
M, S, P series Indoor
non D-port
(03) = E-port
M, S, P series Indoor
Branch box <2>
address (04) *3
SW1-1, 3, 5 ON
SW1-2, 4 OFF
(04) = A-port
M, S, P series Indoor
non B-port
(05) = C-port
M, S, P series Indoor
non D-port
(06) = E-port
M, S, P series Indoor
*1 Outdoor address
Branch box <1> start address + 50 = 01 + 50 = 51
*2 Branch box <1>
A-port address = Start address = 01
B-port address no connection
C-port address = Start address + 1 = 02
D-port address no connection
E-port address = Start address + 2 = 03
*3 Branch box <2>
Branch box <2> start address
= Branch box <1> highest address + 1
= 03 + 1 = 04
A-port address = Start address = 04
B-port address no connection
C-port address = Start address + 1 = 05
D-port address no connection
E-port address = Start address + 2 = 06