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3.1 Reverse Override Function (ROF) 

In some RV’s, a TV monitor is used in conjunction with a camera which allows 
the driver to view the area behind the vehicle while reversing. If the TV monitor is 
in view of the driver, it should remain off, and should only be turned on when the 
vehicle is reversing. When the gear is shifted to “reverse”, a micro-switch in the 
reversing mechanism of the vehicle generates a “+” battery voltage signal that 
can be used to switch on the TV monitor. This is termed as Reverse Override 
Function (ROF). If the TV monitor is powered from the inverter, “ROF” function 
will enable to switch on the inverter when the vehicle is reversed and the  “+” 
battery voltage signal is fed to the remote. 

 

In the preset condition of “ROF”, when the “+” battery voltage signal 
from the vehicle’s reversing gear system is fed to the ¼” male 
disconnect terminal, the inverter is switched on. When the “+” battery 
voltage signal is removed, the inverter is switched off. 

 

3.2 Ignition Lockout Function

 

 
Some low power circuits in a vehicle are energized when the ignition switch is 
turned to the “Accessory” position to provide “+” battery voltage power to run low 
power devices such as a portable music device. If the vehicle is not running, high 
power devices should not be powered as the starter battery will get drained and 
the vehicle may not start. When the ignition switch is turned to the “Accessory” 
position, a “+” battery voltage line is available for actuating the required devices. 
As the inverter is a high power consuming device, it should be switched off when 
the ignition switch is turned to the “Accessory” position. Hence, the “Ignition 
Lockout” function is utilized to switch off the inverter when “+” battery voltage 
signal is fed to the Remote on activation of the “Accessories” circuit.  

In the back of the Remote Control, a ¼” male quick disconnect terminal is 
provided to switch on or switch off the inverter by feeding “+” battery voltage 
signal. A jumper is provided in the Remote (the jumper is accessible after 
opening the bottom cover of the remote control) to select either “ROF” function or 
“Ignition Lockout” function. The Remote Control comes preset in “ROF” position.  

 

When the alternate “Ignition Lockout” function is selected (by changing 
the position of the internal jumper), the inverter shuts down when “+” 
battery voltage signal from the “Accessories” circuit is applied and 
switches on when the “+” battery voltage signal is removed.  

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