Additionally, or alternatively, the AVM controller 102 may transmit a power cut-off control signal 126 to the DC power source 114 that causes the DC power source 114 to cease power transmissions to the RRU 104. In doing so, the AVM controller 102 may protect the RRU 104 and one or more RF antennas 106 from a detected or inferred power surge.
Additionally, the AVM controller 102 may be communicatively coupled to one or more sensor(s) 128(1)-128(N) via one or more network(s) 118. The one or more sensor(s) 128(1)-128(N) may be positioned at various locations along the cable 112 including adjacent to the DC power source 114, the potential transformer 120, and the RRU 104. The one or more sensor(s) 128(1)-128(N) may include hall effect sensors that unobtrusively measure the voltage of power transmissions in the cable 112. However, any type of sensor that can measure the voltage of power transmissions may be used.