公开(公告)号：US20040151305A1

公开(公告)日：2004-08-05

申请号：US10403526

申请日：2003-04-01

Applicant: SERCONET LTD

Inventor： Yehuda Binder ,  Ami Hazani ,  Semion Kofman

IPC: H04M001/00 ,  H04M009/00

CPC classification number: H04M19/08 ,  H04M9/08

Abstract: A system for providing DC power on local telephone lines, such as telephone lines in a building or office, for powering devices and circuitry associated with communications over those telephone lines, as well as other functions. Desired voltage and power levels are supplied over local telephone lines by separating the DC power component from the central office or private branch exchange with a DC blocking filter while passing all AC telephony signals. A distinct DC power is then imposed over the telephone line for powering both the telephony service as well as other loads. Conventional telephone off-hook detection is simulated for compatibility with the central office or private branch exchange. The functions required may be integrated, partially or fully within a telephone outlet.

Abstract translation: 用于在诸如建筑物或办公室中的电话线路的本地电话线路上提供直流电力的系统，用于为通过那些电话线路通信相关的设备和电路供电，以及其他功能。 在通过所有AC电话信号的同时，通过将DC电源组件与中心局或专用分支交换机与DC阻塞滤波器分离，从而通过本地电话线路提供所需的电压和功率电平。 然后，通过电话线路施加不同的直流电力，以为电话服务以及其他负载供电。 模拟常规电话摘机检测，以与中心局或私人交换机进行兼容。 所需的功能可以部分或全部集成在电话插座中。