211.1. The remote control must stop or put in neutral the remote controlled equipment when at least one of the following malfunctions occurs on the remote control:(1) loss of the nominal voltage recommended by the manufacturer;
(2) discrepancy between the status of the output relay and the input signal at the receiver;
(3) reception of 2 conflicting signals, in particular as regards the forward/reverse command;
(4) reception of parasitic or altered signals; and
(5) loss of transmitter signal for the period of time recommended by the manufacturer.