– 75 –
Base of outdoor P.W.B. Q801, Q802
Outdoor micro computer pin ,
7270
Indoor micro computer pin
35V DC line
48
49
100ms.
Leader
33ms.
1 frame
0.7V
0V
5V
0V
5V
0V
5V
0V
35V
Pin
5~7.5ms.
Transmit / receive
switching time
33ms.
1 frame
0V
5V
0V
5V
0V
5V
0V
35V
Base of outdoor P.W.B. Q801, Q802
Outdoor micro computer pin ,
7169
Indoor micro computer pin
35V DC line
48
49
Pin
Fig. 2-2 Voltages Waveforms of indoor / Outdoor Micro computers (Outdoor to Indoor Communications)
Fig. 2-3 Voltages Waveforms of indoor / Outdoor Micro computers (Indoor to Outdoor Communications)
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