Does this TP-1500W Power-Converter have an Bypass, were the supplying voltage can pass trough, when a second, alternative (master) 230V power supply is available? Mean usecase in a RV-Vehicle, alternativevely 230V by external source (e.g. Camp-Ground) or automatically by Power-Converter on internal Battery (e.g. Wildness)! I can't find any information on this in your Manual, therefore I ask. Many thx from the northern of Germany
