Bill, I have Raymarine ST-40s (compass & depth/speed/temp). They have a SeaTalk cable but don't go to anything else.
I did a tiny bit of research and apparently can get some sort of Raymarine backbone and then send that off to some other box that would convert it to NMEA xxxx. I don't know much more about it than that at this time.
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-Shawn
"Holiday" - '89 Alura 35 #109
"Twice Around" - '77 C-30, #511 with original A-4 & MMI manifold - SOLD! (no longer a two boat owner!!)
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