Raymarine Marine GPS System User Manual page 167

Connecting Directly to a GPS
When connecting Navigator directly to a GPS system, follow these
guidelines:
Verify that GPS NMEA output is turned on.
Set the GPS datum to WGS84.
To connect directly to a GPS system, refer to Figure A-1 and Table A-1.
Table A-1. Connecting Navigator Directly to GPS System
Connect Cable Color:
Yellow (Rx)
Blue (SGnd)
Green (Tx)
Black (SGnd)
Appendix A – Connecting Peripheral Instruments
To GPS Lead:
NMEA + output
(which may also be labeled TX, TX+,
Data out+, or NMEA OUT+)
NMEA - input
(which may also be labeled RX-,
Data In -, or NMEA IN-, or Ground)
Not used
NMEA - output
(which may also be labeled TX-,
Data Out -, or NMEA OUT-, or Ground)
A-3