Compact NMPD Series integrates data isolation transformers, power sourcing equipment handshaking and signature control functionality, and UL-approved dc/dc converter delivering isolated dc output of 3.3, 5, 12, or 15 V from nominal 48 V input. Typical signature resistance is 25 kohm and signature capacitance is 100 nF; classification current is 4 mA. Operating with maximum output power rating of 10 W, modules extract power from CAT5 twisted pair Ethernet cable.