Troubleshooting guide

you connect the USB logger to an interface box, which in turn connects into your network. The USB
data then passes to and from the PC over the network rather than over a direct USB cable link and
the network routing might well be less susceptible to interference. This is obviously a more costly
option, although not hugely so. We’ve successfully used the Silex SX-2000WG wireless adapter in
this role, but there are other cheaper wired-only Silex boxes that might work just as well, in addition to
other makes of serial-to-USB adapter;
• See if a cost-effective USB optical isolator might be available. Optical isolators have long been
available for eg RS232 connections and can be invaluable in helping prevent the effects of ground
loops and interference. Unfortunately, they still seem to be relatively new in the USB field and hence
more complex (eg providing isolation for 4 USB ports rather than one port) and more costly than might
be acceptable. But this situation is likely to improve and, someday soon, relatively inexpensive single-
port USB optical isolators might be marketed. Note that you would need to find an isolator that takes
port power from the PC end of the connection – the USB logger cannot provide sufficient power to run
the isolator;
Prodata Weather Systems Davis Weather Stations KB - Prodata Weather Systems - 1
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