Fig. 3-4
〜
〜
〜
〜
〜
〜
(1)Outdoor microcomputer (HIC) to indoor microcomputer
［
Serial Communications Format during Normal Communications
］
［
Example
］
When the outdoor message is all 0s
and indoor message is all 1s:
(3)Communications waveforms
Leader
（
100ms.
）
Leader
（
100ms.
）
When reset
(approx.100ms.)
When reset
(approx.10ms.)
35
(
V
)
34
(
V
)
36
(
V
)
0
7
0
7
7
7
0
（
33.3ms.
）
3
2
1
NO
0
Bit No.=0
7
0
7
0
7
0
7
Bit No.=0
3
2
1
(33.3ms.) (33.3ms.)
(33.3ms.)
Transmit/
receive
switching time
(4.95ms.)
(33.3ms.) (33.3ms.)
Outdoor message
Indoor message
(33.3ms.)(33.3ms.)
0
Character No.
1 frame
＝
100ms.+33.3ms.
×
8+4.95ms.
＝
371.35ms.
(2)Indoor microcomputer to outdoor microcomputer (HIC)
– 48 –
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