Reverse power supply method and reverse powering equipment and system
AssigneeHuawei Technologies Co., Ltd.
InventorsXingguo Gao, Dong Li
Life of this patent
Estimating the term…
Abstract
Reverse powering equipment includes: a power supply module, configured to supply power resources to a distribution point unit by using a line; a switch, configured to control whether the power supply module supplies power; a line test module, configured to: when the switch is opened and the power supply module does not supply power, test whether a user terminal is connected to the line; and a system control module, configured to send an alarm signal when the line test module determines that a user terminal exists on the line, and after a user disconnects the user terminal, control the switch to be closed and the power supply module to supply power. The reverse powering equipment can prevent the user terminal from being damaged.
Claims11
Reverse powering equipment for use when a reverse power supply is provided to a distribution point unit in a fiber to the distribution point network environment, the reverse powering equipment comprising:
- a line, a power supply module, a switch, a line test module, and a system control module, wherein:
- the line is configured to connect the reverse powering equipment and the distribution point unit, the switch has an end connected to the line, an end connected to the system control module, and an end connected to the power supply module, the power supply module has an end connected to the switch, and the line test module has an end connected to the line and an end connected to the system control module;
- the power supply module is configured to supply power to the distribution point unit by using the line;
- the switch is configured to control whether the power supply module supplies power;
- the line test module is configured to:
- when the switch is opened and the power supply module does not supply power, test whether a user terminal is connected to the line;
- and
- the system control module is configured to send an alarm signal when the line test module determines that a user terminal exists on the line, and after a user disconnects the user terminal, control the switch to be closed and the power supply module to supply power.
A reverse power supply method for use in a reverse power supply system, wherein the reverse power supply system comprises reverse powering equipment electrically connected to a distribution point unit by using a line, the method comprising:
- sending, by the reverse powering equipment, an alarm signal when the reverse powering equipment determines that a user terminal exists on the line;
- and
- skipping, by the reverse powering equipment, performing power supply.
A reverse power supply system, comprising:
- reverse powering equipment comprising a first switch, a power supply module, a system control module, a remote switch control module, a line detection module, and a ringing current detection module;
- a distribution point unit comprising a second switch, a power obtaining module, a service module, and a switch power-on control circuit, wherein the reverse powering equipment is connected to the distribution point unit by using a line, wherein:
- the power supply module is configured to supply power resources to the distribution point unit by using the line, and
- the first switch is configured to control whether the power supply module supplies power;
- a line test module configured to:
- when the switch is opened and the power supply module does not supply power, test whether a user terminal is connected to the line;
- wherein the system control module is configured to send an alarm signal when the line test module determines that a user terminal exists on the line, and after a user disconnects the user terminal, control the switch to be closed and the power supply module to supply power;
- and
- wherein the second switch is configured to control the power obtaining module to obtain power from the line, the service module is configured to implement a service function of the distribution point unit, the switch power-on control circuit is configured to control the second switch to be closed or opened, and the switch power-on control circuit is controlled by the remote switch control module of the reverse powering equipment.
Dependencies are inferred from the claim text.