Telecommunication transmission device and method

The invention discloses a telecommunication transmission device suitable for a camera, which comprises a power input port, a boost converter, an Ethernet power supply circuit and a signal conversion chip. The power input port is used for receiving input power. The boost converter is electrically connected with the power input port and is used for boosting the input power to output the boosted power. The Ethernet power supply circuit is electrically connected with the boost converter for receiving the boosted power to output the device DC power to the camera and for receiving a data signal captured by the camera. The signal conversion chip comprises a first interface and a second interface in different types. The first interface and the second interface are respectively electrically connected with the Ethernet power supply circuit and the operating system; the signal conversion chip is used for receiving the data signal through the first interface, converting the format of the data signal and transmitting the