System description
SmartWire-DT
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Physical properties of the SmartWire-DT network
SmartWire-DT networks are designed for a line topology.
It must be terminated at each end with a network termina-
tion. The network termination at the gateway end is inte-
grated into the SmartWire-DT gateway, so that a separate
termination is required only at the other end of the line
(
“Using network termination“, page 93).
SmartWire-DT network cables
Use SmartWire-DT ribbon cable or SmartWire-DT round
cable as the SmartWire-DT network cable.
Flat band conductor
Each conductor of the 8 core ribbon cable has a cross-section
of 0.23 mm
2
(AWG 24). The assignment of the ribbon
cable’s conductors are listed below.
Table 5:
Configuration of the SmartWire-DT flat band
conductor
Meaning
+24 V DC
Contactor control voltage
Common
Contactor control voltage
GND
for device supply voltage and data cable
Data B
Data cable B
Data A
Data cable A
GND
for device supply voltage and data
(data A, data B)
SEL
Select cable for automatic addressing of the
SmartWire-DT slaves
+15 V DC
Device supply voltage
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