To provide a network connector that can properly supply power to a telephone set.

A current regulator 15 controls power to be supplied to a telephone set 4, by adjusting a current to be supplied from a feed circuit 14 to the telephone set 4, when a DC circuit of the telephone set 4 is closed to shift to a hook-off state. A ringer voltage regulator 17 adjusts the operation of a ringer circuit 16 in response to the operation of a user to adjust a voltage of a ringer signal to be generated by the feed circuit 14, thereby controlling the power to be supplied to the telephone set 4 at the arrival of an incoming call. The current regulator 15 is provided with a current regulation instruction entry unit 15a, to enter an instruction from the user for the adjustment of the current to be supplied to the telephone set 4. The ringer voltage regulator 17 is provided with a ringer regulation instruction entry unit 17a for entering an instruction from the user for the adjustment of a voltage of the ringer signal to be generated by the feed circuit 14.