Abstract: An apparatus for integrating video and power transmission signals that comprises a front pane, a back panel, a power indicator, an unshielded twisted pair (UTP)-based video signal converting circuit, a power supply circuit, a UTP I/O terminal, a BNC coaxial cable-based video output terminal, and a power input terminal, said apparatus connecting to a plurality of video cameras, each having an independent UTP I/O terminal. Such cameras can transmit video and receive power signals through individual UTP cables, said apparatus receiving a first signal and filtering noises of said first signal to output a second signal via a BNC-coaxial-cable-based video output terminal to a digital video server, thereby integrating all monitoring and power transmission signals in said apparatus to effectively lower procurement costs and reduce the amount of space required for installation.

Abstract: An apparatus for integrating video and power transmission signals that comprises a front pane, a back panel, a power indicator, an unshielded twisted pair (UTP)-based video signal converting circuit, a power supply circuit, a UTP I/O terminal, a BNC coaxial cable-based video output terminal, and a power input terminal, said apparatus connecting to a plurality of video cameras, each having an independent UTP I/O terminal. Such cameras can transmit video and receive power signals through individual UTP cables, said apparatus receiving a first signal and filtering noises of said first signal to output a second signal via a BNC-coaxial-cable-based video output terminal to a digital video server, thereby integrating all monitoring and power transmission signals in said apparatus to effectively lower procurement costs and reduce the amount of space required for installation.

Abstract: A connector with AC/DC test LEDs is formed of a pair of different colored LEDs connected in parallel to each other in a test and alarm circuit which is connected to a power source. One LED is forward-biased, while the other reverse-biased. If the power source to which the connector is connected is AC, both LEDs are turned on. If that power source is DC and the circuit is connected with correct polarity, only the forward-biased LED is turned on. If that power source is DC and the polarity is reverse-connected, only the reverse-biased LED is turned on. With this scheme, hazardous accidents and electrical damage can be prevented.