Data transmission circuit, communication equipment and switching equipment

Abstract

The invention provides a data transmission circuit, a communication device and a switch device. The data transmission circuit comprises a RJ45 socket, an LAN bus, a Modem bus and a switcher, wherein one end of the switcher is connected with the RJ45 socket while the other end thereof is connected with the LAN bus and the Modem bus for switching between the LAN bus and the Modem bus. By utilizing the communication device of the data transmission circuit, the functions such as a dial-up internet access can be realized through the RJ45 socket and a telephone wire, which results in a convenient design of an interface of the device without using an RJ11 socket.

Description

technical field [0001] The invention relates to communication technology, in particular to a data transmission circuit, communication equipment and switching device. Background technique [0002] At present, the design of notebook computers (laptop PCs) is developing toward miniaturization and thinning. The side area of ​​notebooks is getting smaller and smaller, but there are more and more peripheral interfaces that need to be placed on the sides. How to reasonably place the peripheral interface has become a problem that is often encountered in the design of notebook computers. If the peripheral interfaces of the notebook can be effectively utilized and reduced, the industrial design (ID, Industry Design) and mechanical design (Mechanical Design) of the notebook can be more diversified, and the arrangement of the peripheral interfaces of the motherboard can be made easier and more flexible. [0003] Dial-up Internet access and broadband Internet access are two functions fr...

AI Technical Summary

Problems solved by technology

In the existing notebook computer design, the circuit supporting dial-up Internet access and broadband Internet access is a relatively independent module, which requires the support of RJ11 socket and RJ45 socket respectively, which adds difficulty to the miniaturization and thinning design of the notebook computer.

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