6 Wiring of the Device
Rev. 09/2019
53
6.1.8
Output Wiring – RS485 Interface
The RS485 interface can be wired as two-wire or four-wire wiring and twisted cables must be
used. With both variants the load resistance (R
T
=120 Ω) is the characteristic impedance of the
cable.
Two-Wire Wiring
First device
Last device
Second device
Second-to-last device
Four-Wire Wiring
First device
(Master)
Last device
(Slave)
Second device
(Slave)
Second-to-last device
(Slave)
Summary of Contents for MIC-Marine
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