DAVIS Electronic Rain Counter Guia do Utilizador descarregar pdf (Página 34)

C3 User Guide

32

RS485 ports (x2)

• Nominal 12 V switched sensor power output (600 mA limit)

• Standard 2-wire RS485 for multi-drop connections

• Fault tolerant to 30 V

Label Function

Sensor power

A

RS485 A (+)

B

RS485 B (-)

Ground

Table 6. RS485 port 1 connections (Figure 1-9)

1

A

B

RS485

Label Function

Sensor power

A

RS485 A (+)

B

RS485 B (-)

Ground

Table 7. RS485 port 2 connections (Figure 1-11)

2

A

B

RS485

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 89 90

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