DAVIS Electronic Rain Counter Guía de usuario Pagina 49

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Power
RS485+
RS485-
Ground
12 VDC
<600 mA
Power
RS485+
RS485-
Ground
Power
RS485+
RS485-
Ground
Device 1 Device 2 Device n
1
A
B
RS485
Figure 19. RS485 wiring
Power
RS232 Rx
RS232 Tx
Ground
12 VDC
<600 mA
T
x
R
x
RS232/SDI
Figure 20. RS232 wiring
Power
Data
Ground
12 VDC
<600 mA
Power
Data
Ground
Power
Data
Ground
Device 1 Device 2 Device n
Tx R
x
RS232/SDI
Figure 21. SDI-12 wiring
4. Appendix
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