ya it can be done with adaptor of 48volts ,because modem has three option two power it on
1)dc supply 48volts
2)ac supply
3)remote power feeding ie. i m powering the modem with power that has sent from other modem from long distance of 4.8km
i powering it with remote power feeding...
my modem circuit is not working with low voltage supply .i wanted to make it work at that voltage can i change the component of circuit that will work with low power