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Verfügbare Sprachen
Verfügbare Sprachen
9. Applikationsbeispiel
Sternnetzwerke sind in RS-422/485 Applikationen normalerweise nicht erlaubt. Durch
den RD-48 werden Übertragunge bis 1200m ermöglicht. Der RD-48 sollte nicht weiter
als 30cm vom Bus entfernt sein.
Termination und Fail-Safe beachten.
Termination
und fail-safe
+5V
0V
R+
Leitung
R–
= Termination
Hinweis! Es ist nicht möglich mehr als 8 Repeater in Reihe zu schalten
5
4
3
2
1
5
4
3
2
1
PWR
PWR
LINE - B
LINE - B
T-
T+
R-
R+
T-
T+
R-
R+
RD-48
RD-48
RS-422/485
RS-422/485
REPEATER/
REPEATER/
CONVERTER
CONVERTER
LINE - A
POWER
LINE - A
POWER
R+
R- T+
T-
R+
R- T+
T-
1
2
3
4
5
N
L
1
2
3
4
5
N
L
RD-48
RD-48
RD-48
RD-48
42
5
4
3
2
1
PWR
LINE - B
T-
T+
R-
R+
RD-48
RS-422/485
REPEATER/
CONVERTER
LINE - A
POWER
R+
R- T+
T-
1
2
3
4
5
N
L
RD-48
5
4
3
2
1
PWR
LINE - B
T-
T+
R-
R+
RD-48
RS-422/485
REPEATER/
CONVERTER
LINE - A
POWER
R+
R- T+
T-
1
2
3
4
5
N
L
RD-48
PWR
5
4
3
2
1
LINE - B
T-
T+
R-
R+
RD-48
RS-422/485
REPEATER/
CONVERTER
LINE - A
POWER
R+
R- T+
T-
1
2
3
4
5
N
L
RD-48
5
4
3
2
1
5
4
3
2
1
PWR
PWR
LINE - B
LINE - B
T-
T+
R-
R+
T-
T+
R-
R+
RD-48
RD-48
RS-422/485
RS-422/485
REPEATER/
REPEATER/
CONVERTER
CONVERTER
LINE - A
POWER
LINE - A
POWER
R+
R- T+
T-
R+
R- T+
T-
1
2
3
4
5
N
L
1
2
3
4
5
N
L
RD-48
RD-48
RD-48
RD-48
5
4
3
2
PWR
T-
T+
R-
RD-48
RS-422/485
REPEATER/
CONVERTER
LINE - A
R+
R- T+
T-
1
2
3
4
5
5
4
3
2
PWR
T-
T+
R-
RD-48
RS-422/485
REPEATER/
CONVERTER
LINE - A
R+
R- T+
T-
1
2
3
4
5
5
4
3
2
1
5
4
3
2
1
PWR
PWR
LINE - B
LINE - B
T-
T+
R-
R+
T-
T+
R-
R+
RD-48
RD-48
RS-422/485
RS-422/485
REPEATER/
REPEATER/
CONVERTER
CONVERTER
LINE - A
POWER
LINE - A
POWER
R+
R- T+
T-
R+
R- T+
T-
1
2
3
4
5
N
L
1
2
3
4
5
N
L
RD-48
RD-48
RD-48
RD-48
1
LINE - B
R+
POWER
N
L
RD-48
1
LINE - B
R+
POWER
N
L
RD-48
5
4
3
2
1
5
4
3
2
1
PWR
PWR
LINE - B
LINE - B
T-
T+
R-
R+
T-
T+
R-
R+
RD-48
RD-48
RS-422/485
RS-422/485
REPEATER/
REPEATER/
CONVERTER
CONVERTER
LINE - A
POWER
LINE - A
POWER
R+
R- T+
T-
R+
R- T+
T-
1
2
3
4
5
N
L
1
2
3
4
5
N
RD-48
RD-48
RD-48
RD-48
6153-2004
L
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