Reply to "TIU and power supply problem"

rplst8OGR Forum Member DIGITAL SUBSCRIBER

This is a total WAG, but I’d bet the circuit breaker failed to open, overheated and failed to open circuit. If the breaker in the PH180 was defective from the start, a dead short could have allowed a lot of current to flow through that channel of the TIU. The TVS diodes do have a maximum forward current. A household 20 amp circuit could supply well over 100 amps for short durations until conductor heating raised the resistance.

4/4/218:08 PM

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