V103/113 Vector User Guide Chapter 2-Installation Page 21 of 35
Powering the V103/113
Power Considerations
For best performance, use a clean and continuous power supply. The V103/113 power supply features reverse
polarity protection but will not operate with reverse polarity. See Table B-4 for complete power specifications.
Connecting to a Power Source
Note: This section refers to powering the unit via serial connection. To power the unit via NMEA 2000
connection, follow the standard procedure for powering up via NMEA 2000.
Before you power up the V103/113 you must terminate the wires of the power cable as required. There are a
variety of power connectors and terminals on the market from which to choose, depending on your specific
requirements.
Do not apply a voltage higher than 36 VDC. This will damage the receiver and void the
warranty.
To interface the V103/113 power cable to the power source:
Connect the red wire of the cable’s power input to DC positive (+)
Connect the black wire of the cable’s power input to DC negative (-)
The V103/113 will start when an acceptable voltage is applied to the power leads of the extension cable.
Electrical Isolation
The V103/113’s power supply is isolated from the communication lines and the PC-ABS plastic enclosure
isolates the electronics mechanically from the vessel (addressing the issue of vessel hull electrolysis).
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