Vaisala K-PATENTS PR-43, User Manual

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• White: +24 DC
• Brown: GND
The mA output cable includes the following color-coded internal cabling:
• White: mA+
• Brown: mA-
3.4 Ethernet connection
The Ethernet connection enables data download from a refractometer to a computer. Any type
of computer, for example PC, Mac or mainframe, with a compatible network connection can be
configured to view and download data from the refractometer. The refractometer can be
configured and monitored without any special software by using a standard web browser.
Ethernet protocol specification (page 37) provides all the specifications necessary to write a
data acquisition program.
The connection on the Split cable PR-8431 is an industrial M12 connector. If
connection to a device that uses RJ45 is desired, for example, to connect with a
laptop, Split cable PR-8444 is needed. Alternatively, you can use Ethernet
converter cable PR-8442.
Figure 4 RJ45 network connection with Ethernet converter cable PR-8442
Several refractometers can be connected to the same Ethernet network. The refractometer
also has an automatic function (known as Auto MDI/MDIX) to detect the polarityof the
network so that the network may utilize either crossover or straight interconnecting cables.
The following figure shows an example of how to connect three refractometers to an existing
LAN with a switch.
PR-43 Series User Guide M212455EN-B
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