[CA] [CA11] E120 Seatalk1 to NMEA 2000 conversion requirements

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I've used the SEATALK DEVICES command multiple times - always get the same list and the GPS receiver never shows up. I'm attaching pctur of the GPS receiver - the name data in the little round circle on top is not legible but perhaps you can recognize it (looks like an RC120 based on literature I can find). It is connected to the Seatalk bus using a small junction box (Rectangular 3x2x1 box that doesn't seem to be a Raymarine product - no Raymarine label or part number.) Some additional questions:
1) Can you ID the device based on the picture?
2) Can you ID the "unidentified device based on its bus ID?
3) Assuming this is an RC120 (or what ever product you can ID) does the preceding discussion regarding software upgrade apply? (IE - can I upgrade to the latest version of software without having to reconfigure the network?)

Thanks for your patience.