OTT netDL 500 - Connecting SDI-12 Interface Sensors

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7.4 Connecting sensors having an SDI-12 interface
Screw terminal strip C
431 2
Sonicflow PCB
GND RS 485 A
RS 485 GND
+12 V
RS 485 B
RS-485 / PowerPath 1Path 2
Fig. 10: Connecting the OTT Sonicflow
ultrasound system to the OTT netDL using
the RS-485 interface.
The GND connection represented by the
dashed line is necessary only in case the
Sonicflow PCB and the OTT netDL unit are
supplied from different power supplies.
Fig. 11: Connecting sensors with SDI-12
interface to the OTT netDL unit (e.g. Hydro-
lab DataSonde DS5/DS5X). If multiple sen-
sors are to be connected to an OTT netDL
unit, it is to be done using an SDI-12 bus
topology.
Further information can be found in the
operating instructions of the respective sensor.
A sensor with SDI-12 protocol via RS-485
interface (e.g. OTT RLS radar sensor) is to
Screw terminal strip C
SDI-12 Data
SDI-12 GND
431 2