Had planned to buy a 1199, but decided to move up to the new technology. So, with a much depleted checking account, I have a new Onix 10, a Lakemaster V5 chip & a 80 lb Terrova with I pilot link & US2 in transit to me.
2 questions:  1. What cable do I need to connect the Onix to the I pilot link?  2. I have an older Humminbird 917 c (917 has no Ethernet capability) that I plan to connect to the US2 on the Terrova.  Is there a way for the US2 to be used with 917 c & the Onix?  If so how and what cables etc do I need? 
Also, you really need an Onix specific forum!