Hitachi RAS-18FH6 - Voltages Waveforms of Indoor; Outdoor Microcomputers

– 39 –
33
m
s
.
1
f
r
a
m
e
4
.
95
m
s
.
T
r
a
n
s
m
it/
r
ecei
v
e
sw
i
tc
hi
n
g
t
i
me
5V
0V
0V
5V
0V
35V
5V
0V
35
V D
C
lin
e
Fig. 2-3 Voltages Waveforms of Indoor / Outdoor Microcomputers (Indoor to Outdoor Communications)
Outdoor microcomputer Pin 48
Pin 51
Indoor microcomputer Pin 50
Pin 49
48
5
50
49
33
m
s
.
1
f
r
a
m
e
100
m
s
.
Leade
r
5V
5V
0V
5V
35
V D
C
lin
e
0V
5V
0V
0V
35V
Outdoor microcomputer Pin 48
Pin 51
Indoor microcomputer Pin 50
Pin 49
Fig. 2-2 Voltages Waveforms of Indoor / Outdoor Microcomputers (Outdoor to Indoor Communications)
48
5
50
49