Hitachi RAS-D18EX3 - Page 75

– 114 –
33ms.
1 frame
4.95ms.
Transmit/receive
switching time
5V
0V
0V
5V
0V
35V
5V
0V
33ms.
1 frame
100ms.
Leader
5V
5V
0V
0.7V
Outdoor HIC Pin
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)
Pin
Indoor microcomputer Pin
Pin
35V DC line
Outdoor HIC Pin
Pin
Indoor microcomputer Pin
Pin
35V DC line
0V
5V
0V
0V
35V