Lowrance HALO20 Radar HALO 20 20 and 24 Installation Manual - Page 19

Power control connection The yellow wire in the power cable is used to control how the unit is turned on and off. Power control by supply power The scanner will turn on/off when power is applied/removed. Connect the yellow wire to the red wire after the fuse. A Key Wire color A Yellow Description Power control wire, connected to supply power Power on by switch The unit will be turned on as long as the switch is closed. A B Key Wire color A Yellow B Description Power control wire Power switch Power controlled The scanner can be connected to a common power control bus, and will turn on when power is applied to the bus by a display unit. For Lowrance displays connect the yellow wire of the power connector cable to the bus. For Simrad and B&G displays connect the yellow wire of the power connector cable to the bus and set all displays intended to power on/off the system to be master. For more information, refer to the documentation supplied with your display unit. A B A Key Wire color A Yellow B Description Power control wire Master slave bus Installation | Halo20, 20+ and 24 Dome Radars Installation Manual | 19