Another SeaTalk 1 system upgrade.

[bradleyj]

- you verify that the X10's SeaTalkng power switch has been configured OFF to prevent a ground loop
VERIFIED

- you verify that when Databoxes within the MFD has been configured to display the Heading (not COG) and Rudder data items, that the these items are indeed populated
HEADING AND RUDDER DATA ARE POPULATED

- you verify that the autopilot control head display's Heading
CONTROL HEAD SHOWS "NO PILOT". HEADING DATA IS NOT SHOWN

- you verify that the MFD's Data Source's feature (HOME->SET-UP->SYSTEM SET-UP->SYSTEM SETTINGS->DATA SOURCES) has been configured to specify that the RS125 be used as the system's GPS data source. Alternatively, the MFD's internal GPS may be configured OFF. After doing so, the system should be switched OFF and then ON again to verify that the system is receiving a GPS position FIX from the RS125.
CONFIRMED THAT INTERNAL GPS IS OFF AND THAT MFD IS RECEIVING GPS DATA FROM THE RS125

Should the above listed items have been satisfied, then it is recommended that the ST6001 be temporarily disconnected from the D244 SeaTalk Junction Block and it should installed be tested by connecting it directly to the x10's SeaTalk port
RECONNECTED ST6001 TO CONTROL HEAD USING SEATALK CABLE. ALL CONTROL HEAD FUNCTIONS RETURNED. WORKS NORMALLY. HOWEVER, SMART CONTROLLER STILL DID NOT FUNCTION. CONNECTED SMART CONTROLLER DIRECTLY TO ST6001 SEATALK PORT INSTEAD OF CONVERTER AND SMART CONTROLLER NOW FUNCTIONS NORMALLY.

It appears that everything works normally if I connect the control head and Smart Controller directly to the SPX10 via SeaTalk cables.