Hitachi RAS-25WX8 Manuel De Maintenance page 92

Fig. 3-2 Voltages Waveforms of indoor / Outdoor Microcomputers (Outdoor to Indoor Communications)
Fig. 3-3 Voltages Waveforms of indoor / Outdoor Microcomputers (Indoor to Outdoor Communications)
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Outdoor microcomputer Pin
11
68 Pin
Indoor microcomputer Pin
Pin
35V DC line
100ms.
Leader
Outdoor microcomputer 11 Pin
Pin
68
Indoor microcomputer Pin
Pin
35V DC line
4.95ms.
Transmit/receive
switching time
manuals search engine
33ms.
1 frame
33ms.
1 frame
– 91 –
0.7V
0V
5V
0V
5V
0V
5V
0V
35V
0V
5V
0V
5V
0V
5V
0V
35V