For SM installations requiring an off-the-grid battery power source:
ePMP modules with an input voltage of 10 - 30 V (ePMP Integrated, ePMP Connectorized, Force 180, Force 200) may be deployed with a 48V battery as the power source by using a 48VDCin, 24V passive PoE inserter:
Tycon passive PoE inserter:
(http://tyconsystems.com/index.php/dc-passive/515-tp-dcdc-4824-hp)