MURATA POWER SOLUTIONS NMA1212SC Isolated Board Mount DC/DC Converter, Through Hole, 1W, 12V, 42mA, -12V, 42mA MCS 70186 then use the on-board potentiometers

then use the on-board potentiometers to adjust the start/stop positions and the transition time

cable modems

Non-reflective Black Enamel Height Adjustment Range: 29

UPC: 689670110167

MURATA POWER SOLUTIONS NMA1212SC Isolated Board Mount DC/DC Converter, Through Hole, 1W, 12V, 42mA, -12V, 42mA MCS 70186 then use the on-board potentiometersThe NMA1212SC is a 2 output board mount isolated DC to DC Converter ideally suited for providing dual rail supplies on primarily digital boards with the added benefit of galvanic isolation to reduce switching noise. The NMA series 1W DC DC converter is the standard building block for on board distributed power systems. All of the rated power may be drawn from a single pin provided the total load does not exceed 1 watt. Efficiency up to 80% Power