Eagle Electronics 502cDF manual GPS Internal Antenna, Nmea Cable Connections, Nmea Wiring

To unit	Optional power off switch for
	saltwater installations

Black wire

Red wire with

12 volt

3 amp fuse

battery

Power connections for the sonar unit.

WARNING:

This product must be independently fused with the en- closed 3-amp fuse (or equivalent), even if you connect to a fused accessory or power buss.

If a malfunction happens inside the unit, extensive dam- age can occur if the enclosed fuse is not used. As with all electrical devices, this unit could be damaged to a point that it is unrepairable and could even cause harm to the user when not properly fused.

CAUTION:

Failure to use the enclosed 3-amp fuse will void your warranty! For a replacement, use a type 3AG 3-amp fuse.

This unit has reverse polarity protection. No damage will occur if the power wires are reversed. However, the unit will not work until the wires are attached correctly.

GPS Internal Antenna

The unit has a built-in 12-parallel channel GPS + WAAS antenna.

NMEA Cable Connections

NMEAis a standard communications format for marine electronic equipment. For example, an autopilot can connect to the NMEA inter- face on the unit and receive positioning information. The unit is capable of exchanging information with any device that transmits or receives NMEA 0183 data, however, a communications cable is not available for the unit at this time. If you need to create a NMEA 0183 connection, consult customer service. Service contact information is located in the back of this manual.

NMEA Wiring

To exchange NMEA data, the unit has one NMEA 0183 version 2.0 communication port. Com port one (Com-1) can be used to receive

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