Eagle Electronics 1000C manual Power Connections

communication port. Com port one (Com-1) can be used to receive NMEA format GPS data. The com port can also transmit NMEA format GPS data to another device.

The optional data cable will contain three wires. Com-1 uses the yellow wire to transmit, the orange wire to receive and the shield wire for signal ground.

	Orange (Receive)
Com-1 to
your unit	Shield (Ground)

NMEA Transmit
	To Other
Ground	GPS Receiver

Com-1 wiring to receive NMEA position information

from some other GPS receiver.

	Yellow (Transmit)
Com-1 to
your unit	Shield (Ground)

NMEA Receive

To Other

GroundDevice

Com-1 wiring to transmit NMEA position information

to another NMEA-compatible device.

Read your other product’s owner’s manual for more wiring information.

Power Connections

The unit works from a 12-volt battery system. For the best results, attach the power cable directly to the battery. You can attach the power cable to an accessory or power buss, however you may have problems with electrical interference. Therefore, it's safer to go ahead and attach the power cable directly to the battery.

Caution:

When using the unit in a saltwater environment, we strongly recommend that you shut off the power supply to the power cable when the unit is not in use. When the unit is turned off but still connected to a power supply, electrolysis can occur in the power cable plug. This may result in corrosion of the plug body along with the electrical contacts in the cable and the unit's power socket.

In saltwater environments we recommend you connect the power cable to the auxiliary power switch included in most boat designs. If that results in electrical interference, or if such a switch is not available, we recommend connecting direct to the battery and installing an inline switch. This will let you shut off power to the power cable when the unit is not in use. When you are not using

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