RJ45 is a special connector for network. This RJ45 socket is mainly composed of head connector, crystal head and socket module. Moreover, the needle will have 8 recesses and 8 contact induction for the interior of RJ45 socket, so it should be configured and used with RJ45 socket in the use of RJ45 socket. So the question is, how much do you know about RJ45 socket? What are the basic characteristics of RJ45 socket? I must know very little about this. Now let's talk about the basic characteristics of RJ45 socket and the analysis of its impact on data transmission.

RJ45 socket data transmission description

The core of RJ45 socket is the modular jack. The gold-plated wire or socket hole can maintain a stable and reliable electrical connection with the modular plug shrapnel. When the plug is inserted into the jack of jr45, the maximum strength can be produced when the plug is inserted into the jack of jr45. However, due to the friction between the shrapnel and the insertion hole, the electrical contact needs to be further strengthened with the insertion of RJ45 plug. The wiring on the RJ45 socket is connected to the twisted pair through the trunking, and the locking spring can transmit and connect the data on the panel and other information outlet devices.

Interference of RJ45 socket

In the use of RJ45 socket, there will be some near end crosstalk, insertion loss, attenuation, far end crosstalk and other impact problems. Among these impact performance problems, in order to make the whole link have better transmission performance, crosstalk cancellation technology is usually used in RJ45 socket. Crosstalk cancellation technology can generate crosstalk signals with the same size and opposite polarity as the interference introduced from the plug to offset crosstalk. If the crosstalk interference introduced by the plug is represented by + + +, the opposite crosstalk generated by the socket is represented by -. When the two crosstalk signals have the same size and opposite polarity, the total size of the coupled crosstalk interference signal is zero.

Basic characteristics of RJ45 socket

Characteristic I

RJ45 socket mainly includes contact resistance, insulation resistance and electrical strength. Moreover, it has low and stable contact resistance in the use of RJ45 socket with high contact resistance. The contact resistance of RJ45 socket can range from a few milliohms to tens of milliohms.

Characteristic II

The insertion force of RJ plug is an important mechanical property. The insertion force is divided into insertion force and pull-out force, and their requirements are different. If the maximum insertion force and minimum separation force are specified in relevant standards, the insertion force should be small from the perspective of use, and if the separation force is too small, it will affect the contact reliability of RJ45 socket.

Characteristic III

The service life of RJ45 socket refers to the mechanical life, which is actually a durability index. It takes one insertion and one pull-out as a cycle, based on whether the connector can normally complete its connection function (contact resistance value) after the specified plug-in cycle.

The plugging force and mechanical life of the connector are related to the coating quality, sliding friction coefficient and RJ socket data accuracy of the contact.

RenhotecIC is specialized in developing and selling all kinds of electronic components, welcome new and old customers to come and buy, if you like us, please pay attention to our platform and website.www.renhotecic.com

专栏文章内容及配图由作者撰写发布，仅供工程师学习之用，如有侵权或者其他违规问题，请联系本站处理。 联系我们