NorthStar 6000i Installation Manual page 18

SECTION TWO: Installing and wiring the radar
Radar power control
Electrical power for the radar's standby state is controlled by the blue and green wires in the data
cable. When these wires are connected to each other, the radar powers up and enters standby mode.
When they are not connected, the radar is turned off (although it still draws a tiny amount of power).
Connect the blue and green wires in any one of the following three ways:
• Option 1: Connect the blue and green wires to an S.P.S.T switch as shown in Figure 15 to
control the radar's power An appropriate switch is included with the radar.
• Option 2: Permanently connect the blue and green wires to each other, and control the
radar's power from a switched circuit breaker at the mains circuit panel.
• Option 3: Connect the blue and green wires to a set of relay contacts controlled by the
navigator, so that the radar will turn on to standby mode automatically whenever the
navigator is turned on. Control the relay using the pink wire ("Honk" output) from the
navigator's NMEA port, and install a spike-suppression diode across the relay coil as
shown.
An appropriate relay for Option 3 can be obtained from Greenwich Electronics
(www.geirelays.com, or 888-554-5561) using P/N HD1-012D-A30PMS for a 12-volt
system, or HD1-024D-A30PMS for a 24-volt system. Using this relay, the coil is
Page 14
Figure 15: Using a switch to control radar power
Note: Choose a relay that's compatible with the ship's power
Figure 16: Using a relay to control radar power
Radar Installation Manual, Rev. E1