Raymarine Marine GPS System Connecting to a Raytheon Autohelm System, Figure A-1 and Table A-5

RayTech Navigator User’s Guide

Connecting to a Raytheon Autohelm System

The optimum way to connect Navigator to a Raytheon Autohelm system is to use the Direct SeaTalk Interface, Raymarine Part No. E85001 (Figure A-2). You can also use a Z290 SeaTalk-to-NMEA converter for this connection; however, keep in mind that not all SeaTalk features are supported by the Z290. Therefore, to ensure full communications, we recommend that you use the Direct SeaTalk Interface.

To connect directly to a Raytheon Autohelm system, refer to

Figure A-1 and Table A-5.

Table A-5. Connecting Navigator Directly to Raytheon Autohelm

Connect Cable Color:	To NMEA Instrument Lead:
Yellow (Rx)	RS-232 + output
Blue (SGnd)	NMEA - input
	(which may also be labeled RX-,
	Data In -, or NMEA IN-, or Ground)
Green (Tx)	NMEA + input
	(which may also be labeled RX, RX+,
	Data In+, or NMEA IN+)
Black (SGnd)	NMEA - output
	(which may also be labeled TX-,
	Data Out -, or NMEA OUT-, or Ground)

A-8