Wiring of seatalk instruments
OK, you are confused.
Seatalk is a bus system, using 3 wires , (power +, power-, and Data.) red, bare and yellow repectively. So Red and Bare are 12V and ground. Since the 125 shows a green light, it is getting power and outputting data. but is it seatalk??
to make a 125 Seatalk, you must hook red and green together to 12 V, so check that first. if green is grounded or not connected, that is the problem (or one of them)
Next divide system to its' simplest terms, so hook the GPS straight to the display ST60, and see if it works red to rd, yell to yell and bare to bare (sometimes black) One by one hook the others into the chain until they all work or failed device takes down Seatalk network. If you are missing 12V on a seatalk leg, check 5A fuse in course computer. If you have a pilot, you have a course computer, unless it is ST4000 wheel pilot, and then the brain is the display (course computer is built in to ST4000 display)
1/17/2010 1:45:18 PM •
Raymarine...
•
Answered
on Jan 17, 2010