Installation
26 Rev. E2 04/2011 Marathon MR
5.2.4 PC Connection via USB/RS485 Converter
To connect to a computer’s USB port, you need one of the USB/RS485 Converter accessories (similar to
the following figure) and the proper USB cable.
The distance between the sensor and a computer can be up to 1200 m (4000 ft.) via RS485 interface.
This allows ample distance from the harsh environment where the sensing system is mounted to a
control room or pulpit where the computer is located. The USB/RS485 converter is self-powering via
the USB connection.
Figure 16: USB/RS485 Converter (XXXUSB485)
Figure 17: Wiring the Sensor’s RS485 Interface (left)
with USB/RS485 Converter (right)
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