Application Example - Westermo RD-48 HV Manuel D'installation

9. Application example

Normally star networks is not allowed in RS-422/485 applications. Using the RD-48
makes it possible to create branches up to 1200 m. Observe that the RD-48 should be
connected a maximum of 30 cm from the bus.
Observe setting of termination and fail-safe.
Termination
and fail-safe
+5V 0V
R+
Line
R–
= Termination and fail-safe
Note ! It is not possible to have more than 8 repeaters in serial connection
RD-48 RD-48
6153-2004
RD-48
RD-48
RD-48
RD-48 RD-48 RD-48 RD-48
RD-48
RD-48
RD-48 RD-48
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