Hitachi RAS-E10H2 - Page 43

Fig. 2-2 Voltages Waveforms of Indoor / Outdoor Microcomputers (Outdoor to Indoor Communications)
Fig. 2-3 Voltages Waveforms of Indoor / Outdoor Microcomputers (Indoor to Outdoor Communications)
Fig. 2-4
(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.)
T
ransmit/
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)
(2)Indoor microcomputer to outdoor microcomputer (HIC)
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