HELIX 5 CHIRP G2 product manuals are on the HB website ... (no G2 listings under HELIX 7, 9, 10 or 12) ...
Select HELIX 5 and you will see the list of G2 manuals ...(even tho they're all the same manual) ..
When you download one, the manual is actually for the HELIX 5 & 7 CHIRP G2 ..
http://www.humminbird.com/WorkArea/DownloadAsset.aspx?id=12803Autochart Live page 178 in the HELIX 5-7 SI CHIRP G2 manual ...
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And this on page 101 ...:
I don't see anything about Ethernet ...
Rickie