Umbilical cord
The umbilical cord in RV terminology refers to the electrical cord that connects an RV trailer to the towing vehicle, which could be a car, van, SUV, or truck. This cord serves several crucial functions:
- Charging the Trailer’s Batteries: It carries electricity from the towing vehicle’s alternator to charge the house batteries of the trailer. This is important for keeping the trailer’s electrical systems running when the trailer is not connected to an external power source.
- Controlling Brakes and Lights: The umbilical cord also transmits electric current from the towing vehicle to operate various functions on the trailer. This includes the electric brakes of the trailer, which is vital for safe towing. Additionally, it powers the stop and turn lights, as well as the night running lights on the trailer, ensuring visibility and safety while driving.
Essentially, the umbilical cord is a lifeline that ensures the trailer’s electrical systems are powered and its safety features are functioning properly when it’s being towed.