Westermo RD-48 - Manual (Page 40)

42 6153-2004
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.
RD-48 RD-48 RD-48 RD-48 RD-48 RD-48 RD-48 RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T- 1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
RD-48
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
1 2 3 4 5 L N
RD-48
LINE - A
RS-422/485 REPEATER/ CONVERTER
LINE - B
POWER
R+ R- T+ T-
5 4 3 2 1 PWR
R+ R- T+ T-
RD-48
RD-48
RD-48
+5V 0V
Leitung
Termination
und fail-safe
R–
R+
= Termination
Hinweis! Es ist nicht möglich mehr als 8 Repeater in Reihe zu schalten