Schneider Electric VW3 A3 303 Marine Radio User Manual


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41
9. Appendix
9. 3. Modbus 4-wire standard schematic
5 V
G
R
G
R
Rp
Rp
Rp
Rp
LT
LT
RXD1
TXD1
RXD0
TXD0
LT
LT
5 V
G
R
Slave 1 Slave n
Master
Slave pair
Master pair
Common
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