ST290 GPS and NMEA issues

[smorast]

Okay, think we are getting somewhere.

1. The spliced STng to ST2 coming from the ST1 to STng converter has been removed with no negative impact. (What should be placed in the empty socket?)

2. Disconnecting the RED wire from the S3 Course computer ST1 input removed power from the entire system (ST1/ST2). The ST1 RED wire attached to the S3 course computer is the 12V output, not an input. (Appears this needs to remain wired as-is to operate properly). The S3 main power input (40A fused) and the E125 are both engaged at same time by navigation breaker. It appears the E125 was not supplying any voltage to either the ST1 or ST2 devices.

3. Lastly, if the system appears to be working correctly, is there a reason to add a second ST1 to STng converter? There are more than 5 ST1 devices in the system-is it a hard rule that any more than 5 require an additional converter?

Thanks!
smorast