Serial port line capable of switching between cross connection and direct connection

Abstract

The invention discloses a switching serial port line capable of switching between cross connection and direct connection. The switching serial port line capable of switching between the cross connection and the direct connection comprises a signal input serial port end and a signal output serial port end, wherein a cross connection and direct connection switching switch is arranged on the signal input serial port end; a sliding control block is arranged inside a sliding cavity of a switch box in a left-and-right sliding manner; a front signal transmitting assembly and a back signal transmitting assembly are arranged between the sliding control block and the front sliding surface of the switch box and between the sliding control block and the back sliding surface of the switch box respectively; the front signal transmitting assembly comprises an upper front elastic plate and a lower front elastic plate which are arranged on the sliding control block, and an upper front contact plate and a lower front contact plate which are arranged on the switch box; the upper front contact plate and the lower front contact plate are connected with an RXD and a TXD of the signal input serial port end respectively; the back signal transmitting assembly comprises an upper elastic plate and a lower elastic plate which are arranged on the sliding control block, and an upper back contact plate, a lower back contact plate, a left back contact plate and a right back contact plate which are arranged on the switch box; every two back contact plates are communicated in a cross way and are connected with the an RXD and a TXD of the signal output serial port end respectively. The switching serial port line capable of switching between the cross connection and the direct connection can switch between two states, namely a cross-connection line and a direct-connection line, on one serial port line, so that the development time of a researcher is saved and the product debugging efficiency is improved.

Description

technical field [0001] The invention relates to electrical components, in particular to a crossover direct-connect switch serial port line. Background technique [0002] Serial lines are widely used in electrical design, mainly for signal transmission. [0003] The existing serial lines are distinguished functionally, mainly including straight line and crossover line, but there is almost no difference in the appearance of these two types of serial lines, and there is no special mark for type distinction. bring inconvenience. [0004] For this reason, Patent No. 201420477556.5 discloses a "switching device for serial port direct connection line and crossover line". This realizes the function of direct connection and cross switching of serial port lines. [0005] For the double-pole, double-throw switch described in "Serial Port Direct Connection and Crossover Line Switching Device", the contacts of the switch are point contacts, and the contact resistance is relatively lar...

AI Technical Summary

Problems solved by technology

[0005] For the double-pole double-throw switch described in "Serial Port Direct Connection and Crossover Line Switching Device", the contact of the switch is a point contact, and the contact resistance is relatively large, which is not good for processing weak serial port signals.

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