Eagle Electronics 642c iGPS manual Power connections for the IntelliMap 642c GPS unit

This may result in corrosion of the plug body along with the electri- cal 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 in- stalling 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 the unit, you should always shut off power to the power cable, es- pecially when the power cable is disconnected from the unit.

If possible, keep the power cable away from other boat wiring, espe- cially the engine's wires. This will provide the best isolation from elec- trical noise. If the cable is not long enough, splice #18 gauge wire onto it. The power cable has two wires, red and black. Red is the positive lead, black is negative or ground. Make sure to attach the in-line fuse holder to the red lead as close to the power source as possible.

For example, if you have to extend the power cable to the battery or power buss, attach one end of the fuse holder directly to the battery or power buss. This will protect both the unit and the power cable in the event of a short. It uses a 3-amp fuse.

To unit

Black wire

Optional power off switch for saltwater installations

Red wire with 3 amp fuse

12volt battery

Power connections for the IntelliMap 642c GPS 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 not repairable and could even cause harm to the user when not properly fused.

12