Advantech 5000 Series Manual de usuario descargar pdf (Pagina 263)

100

101

RS-485 Network

Combination of an ADAM-4000 and an ADAM-5000

in a RS-498 Network

The following figure shows how to integrate ADAM-4000 and

ADAM-5000 systems in a network.

Figure C-4 ADAM-4000 and ADAM-5000 in a network

Note:

The speed of ADAM-4000 and ADAM-5000 in a RS-

485 network should be the same.

C.2 Line Termination

Each discontinuity in impedance causes reflections and distortion.

When a impedance discontinuity occurs in the transmission line the

immediate effect is signal reflection. This will lead to signal distortion.

Specially at line ends this mismatch causes problems. To eliminate this

discontinuity, terminate the line with a resistor.

C-6 ADAM-5000

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Advantech 5000 Series Manual de usuario Pagina 263

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