Circuit and switchboard for 1000Base-T gigabit Ethernet port interconnected communication

Abstract

The invention discloses a circuit and a switchboard for 1000Base-T gigabit Ethernet port interconnected communication. When the circuit is applied to the mutual communication of a first chip and a second chip, differential pairs of the first chip and the second chip are connected. The circuit comprises a conjugate coil, a first resistor and a second resistor, wherein the conjugate coil is in bridge connection between the first chip differential pair and the second chip differential pair; a group of adjacent pins of two inductors in the conjugate coil is in short connection and are connected with a power source; the first resistor and the second resistor are connected in parallel with the conjugate coil; the first resistor is in bridge connection between differential pairs of the first chip; and the second resistor is in bridge connection between differential pairs of the second chip. The circuit provided by the invention enables current signals sent by a signal-sending chip in two chips to be converted into voltage signals needed by a signal-receiving chip through the circuit consisting of the conjugate coil and the resistors.

Description

technical field [0001] The invention relates to the electronic field, in particular to a 1000Base-T Gigabit Ethernet port interconnection communication circuit and a switch. Background technique [0002] In a data exchange system, in addition to channels for data service transmission, there are generally control / management channels inside the device, and these channels that are not used for main data service transmission are collectively called out-of-band channels. In order not to affect the processing of main services, the control / management channel generally exists independently of the data service transmission channel. The out-of-band channel provides a way for circuit boards with different functions to transmit control information, synchronize data, update software, and send management instructions. [0003] Out-of-band channels are generally built using well-established interfaces. More designers usually choose to use 100Base-TX Fast Ethernet to build out-of-band cha...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a 1000Base-T Gigabit Ethernet port interconnection communication circuit and switch, which is used to solve the problem that two 1000Base-T chips are directly interconnected due to the use of some special circuit forms inside the driver in the prior art , a voltage signal that meets the requirements cannot be formed on the communication link, resulting in the problem that the two 1000Base-T chips cannot communicate

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