Vaisala RVP10, Hardware Quickmanual

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3.4 STALO control
The earlier generations of Vaisala RVPs used a legacy Sigmet digital automatic frequency
control (DAFC) device for STALO control. RVP10 is using a new approach with off-the-shelf
industrial automation products for STALO control. For controlling STALOs having RS-422 serial
data interfaces, the Moxa NPort IA5150AI-T device is used. It receives control commands over
the internal radar network from the RVP10 server, and converts them to RS-422 serial output.
Currently, this is the only method provided for controlling STALOs, but other methods can be
implemented on request.
Figure 5 STALO control
RVP10 Hardware Quick Guide M212758EN-A
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