Patent ID: 11870596
Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power sourcing equipment, comprising:
an input terminal configured to receive a power signal;
an output terminal electrically coupled to a powered device via a coaxial cable, the coaxial cable being configured to transmit the power signal from the power sourcing equipment to the powered device or transmit a data signal from the powered device to the power sourcing equipment;
a switch coupled between the input terminal and the output terminal, the switch controlling an electrical connection between the input terminal and the output terminal; and
a device detection circuit coupled to the output terminal and the input terminal, the device detection circuit being configured to detect whether the data signal is being transmitted from the powered device to the power sourcing equipment, and in response to a determination that the data signal is not being transmitted from the powered device to the power sourcing equipment, control an operation of the switch based on an electrical parameter associated with the powered device.