"toia" wrote in message
ups.com...

The navman doesn't give any signal yet ,I must ask the ground you
refer isn't the common is it ,and conecting the RD-H & RH-C wouldon't
it send the signal direction to the Furuno equip.

Yes, ground or common, it's the same on Navman. So connect the white wire
(NMEA Out) to RD-H and the black wire (ground) to RD-C.

Meindert