RL70C not communicating with RC631

[Chuck - Raymarine - Moderator]

dkritter,

Q1. The second ST1-STNG converter is only powered by the backbone. I have the ST1 going to the 400G course computer and from the 400G the ST1 goes to the ST6001 control head. Both these connections have the yellow, red and silver attached. This ST1-STNG converter supports (2) ST1 devices. Not sure this is the proper way to connect, please confirm?
A1. The red lead of the SeaTalk cable which is connecting the 400G autopilot course computer to the SeaTalk to SeaTalkng Converter must not be connected to the red SeaTalk terminal of the course computer.

Q2. Lastly I have the NMEA0183 out on the 400G running to the NMEA0183 in on the E125, is this also correct? If so what is this connection actually providing to the system? Is this the fast heading?
A2. When interfaced via SeaTalk alone to the system, the autopilot will supply the system with 1Hz (slow) heading updates. When the autopilot course computer's NMEA 0183 OUT1 port is interfaced to one of the MFD's NMEA 0183 input ports, then the autopilot will be able to supply the system with 10Hz (fast) heading updates, permitting the performance of MARPA and other heading dependent features to be maximized.