D-Link DE-805TP - 10Mbps Ethernet Mini Hub User Manual download pdf (Page 42)

Modbus for Field Technicians

Page 42

Getting worse. Making the connections to the RS485 terminals, drops instead

of connections starts to give the electrical signals all kinds of complicated

paths for reflections and harmonics. It is obvious that if the drops are long

and are not twisted then you also have more chance to induce noise.

(Showing TX conductor for reference only)

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D-Link DE-805TP - 10Mbps Ethernet Mini Hub User Manual Page 42