Hitachi RAC-08PH1, Руководство по обслуживанию, Страница: 47 / 114

Fig. 2-4
(1
)Outdoor microcomputer
(HIC
) to indoor microcompute
r
Serial Communications Format during Normal Communications
E
xampl
e
When the outdoor message is all 0s
and indoor message is all 1s:
(3
)Communications waveforms
L
eade
r
100
ms
.
L
eade
r
100
ms
.
W
hen rese
t
(approx.100ms.
)
W
hen rese
t
(approx.10ms.
)
35
( V
)
34
( V
)
36
( V
)
0
7
0
7
7
7
0
33
.3
ms
.
3
2
1
NO
0
Bit No.=
0
7
0
7
0
7
0
7
B
it No.=
0
3
2
1
(33.3ms.
)
(33.3ms.
)
(33.3ms.
)
T
ransmit
/
receiv
e
s
witching tim
e
(4.95ms.
)
(33.3ms.
)
(33.3ms.
)
Outdoor messag
e
Indoor messag
e
(33.3ms.
)
(33.3ms.
)
0
Character No
.
(2
)I
nn
door microcomputer to outdoor microcomputer
(HIC
)
47