CN210927649U

CN210927649U - Gigabit dual-redundancy network card based on Compact PCI bus

Info

Publication number: CN210927649U
Application number: CN201921876386.7U
Authority: CN
Inventors: 刘建民; 王硕
Original assignee: Beijing Zhongchuan Hanguang Information Technology Co ltd
Current assignee: Beijing Zhongchuan Hanguang Information Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-03
Anticipated expiration: 2029-11-04

Abstract

The embodiment of the utility model discloses a gigabit dual-redundancy network card based on Compact PCI bus, comprising a terminal matching resistor for butting the external Compact PCI bus; the network port isolation transformer is used for butting external equipment; the network controller is used for providing network connection, is connected with an external Compact PCI bus through a terminal matching resistor, is connected with external equipment through a network port isolation transformer and is used for switching and managing the network connection and the running state between the two network cards; an Ethernet port circuit is arranged between the network controller and the network port isolation transformer, and the network controller is provided with two output ends which are respectively connected with the two network port isolation transformers. In the normal work of the network card, if one network fails, the connection signal can be automatically switched to the other network, so that the normal operation of communication work is guaranteed, and the information data safety of work is improved.

Description

Gigabit dual-redundancy network card based on Compact PCI bus

Technical Field

The embodiment of the invention relates to the technical field of network equipment, in particular to a gigabit dual-redundancy network card based on Compact PCI (peripheral component interconnect) bus.

Background

The dual-redundancy network card mainly comprises a network control chip, a memory, a magnetic network isolator, a light emitting diode and a CPCI bus plug. When the dual redundant network cards work, only one path of network message is received and sent, when the network message is received, the network signal passes through the network isolator by the network interface and finally enters the network control chip, the network control chip communicates with the host computer by the Compact PCI bus interface, and the network control chip indicates the network connection state and the message receiving and sending state by the light-emitting diode. If the network in work fails, the network cannot work normally, the general dual-redundancy network card does not support 945 the mainboard, or a PING packet crash phenomenon exists.

Disclosure of Invention

Therefore, the embodiment of the invention provides a gigabit dual-redundancy network card based on Compact PCI bus, so as to solve the problem that the communication work can not work normally due to network failure in the prior art.

In order to achieve the above object, an embodiment of the present invention provides the following:

in a first aspect of embodiments of the present invention, a gigabit dual redundant network card based on a Compact PCI bus is provided, which includes a terminal matching resistor for interfacing with an external Compact PCI bus; the network port isolation transformer is used for butting external equipment; the network controller is used for providing network connection, is connected with an external Compact PCI bus through a terminal matching resistor, is connected with external equipment through a network port isolation transformer and is used for switching and managing the network connection and the running state between two network ports; an Ethernet port circuit is arranged between the network controller and the network port isolation transformer, and the network controller is provided with two output ends which are respectively connected with the two network port isolation transformers.

Furthermore, the network controller is connected with a low-power complementary metal oxide semiconductor and used for storing data after the BIOS sets the hardware parameters of the computer.

Furthermore, the network controller supports 10/100/1000M network communication, accords with IEEE802.3u1000base-T characteristics and IEEE802.3x full-duplex flow control characteristics, provides a CPCI standard bus interface, accords with PCI2.2 specifications and PICMG2.0 specifications, and is compatible with 32bit/33MHz or 64bit/66MHz CPCI buses.

Furthermore, the ethernet port circuit is formed by a physical layer chip FW82546GB, and the network controller and the ethernet port circuit are connected through a network transformer bus.

According to the embodiment of the invention, the dual redundant network card has the following advantages: in the normal work of the network card, if one network fails, the connection signal can be automatically switched to the other network, so that the normal operation of communication work is guaranteed, and the information data safety of work is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a structural diagram of a gigabit dual redundant network card based on a Compact PCI bus according to an embodiment of the present invention; fig. 2 is a control block diagram of a network controller in a gigabit dual redundant network card based on a Compact PCI bus according to an embodiment of the present invention; fig. 3 is a schematic diagram of a network controller in a gigabit dual redundant network card based on a Compact PCI bus according to an embodiment of the present invention; FIG. 4a is a schematic diagram of the power management circuit of FIG. 3; FIG. 4b is a schematic diagram of the CPCI bus interface of FIG. 3; FIG. 4c is a schematic diagram of the network interface and memory of FIG. 3; FIG. 4d is a schematic diagram of the power conversion circuit of FIG. 3; FIG. 4e is a schematic diagram of the reserved pins of FIG. 3; fig. 5 is a schematic diagram of the network port isolation transformer of fig. 1.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship therebetween may be regarded as the scope of the present invention without substantial changes in the technical contents.

As shown in fig. 1, it shows that a gigabit dual-redundancy network card based on Compact PCI bus provided by the embodiment of the present invention includes a terminal matching resistor for interfacing with an external Compact PCI bus; the network port isolation transformer is used for butting external equipment; the network controller is used for providing network connection, is connected with an external Compact PCI bus through a terminal matching resistor, is connected with external equipment through a network port isolation transformer and is used for switching and managing the network connection and the running state between the two network cards; an Ethernet port circuit is arranged between the network controller and the network port isolation transformer, and the network controller is provided with two output ends which are respectively connected with the two network port isolation transformers.

The network controller is connected with a low-power-consumption complementary metal oxide semiconductor and used for storing data after the BIOS sets the hardware parameters of the computer.

In a specific implementation mode, the network controller supports 10/100/1000M network communication, accords with IEEE802.3u1000base-T characteristics and IEEE802.3x full-duplex flow control characteristics, provides a CPCI standard bus interface, accords with PCI2.2 specifications and PICMG2.0 specifications, and is compatible with 32bit/33MHz or 64bit/66MHz CPCI buses.

The Ethernet port circuit is composed of a physical layer chip FW82546GB, and the network controller is connected with the Ethernet port circuit through a network transformer.

As shown in fig. 2 and referring to fig. 3, 4a, 4b, 4c, 4d, and 4e, the schematic diagram of the network controller is a network control chip, and specifically, the network controller includes a control circuit, the control circuit is connected with a CPCI bus interface, a network transformer, and a memory, the power conversion circuit is connected with the control circuit through a power management circuit, the network interface is connected with an indicator light, and the control circuit is connected with a reserved pin in the periphery.

The network control chip has two network ports, each network port has its own state and configuration register, and can work independently. Through the configuration of the driver, the two network ports can work in a redundant state. The method comprises the steps that a driver reads a value of a register to quickly acquire the current state of a dual-redundancy network card link, when the state of the link changes, namely the state changes from link to disconnection or from disconnection to link, a network controller generates an interrupt, the driver receives the interrupt, executes the operation of reading the value of the link state register, and then immediately judges whether switching is needed or not.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A gigabit dual-redundancy network card based on Compact PCI bus is characterized by comprising

The terminal matching resistor is used for butting an external Compact PCI bus;

the network port isolation transformer is used for butting external equipment;

the network controller is used for providing network connection, is connected with an external Compact PCI bus through a terminal matching resistor, is connected with external equipment through a network port isolation transformer and is used for switching and managing the network connection and the running state between two network ports;

an Ethernet port circuit is arranged between the network controller and the network port isolation transformer, and the network controller is provided with two output ends which are respectively connected with the two network port isolation transformers.

2. The Compact PCI bus gigabit dual redundant network card of claim 1, wherein the network controller is connected to a low power cmos device for storing data after the BIOS sets the hardware parameters of the computer.

3. The Compact PCI bus gigabit dual redundant network card of claim 2, wherein said network controller supports 10/100/1000M network communication, complies with IEEE802.3u1000Base-T characteristics and IEEE802.3x full duplex flow control characteristics, provides CPCI standard bus interfaces, complies with PCI2.2 specifications and PICMG2.0 specifications, and is compatible with 32bit/33MHz or 64bit/66MHz CPCI buses.

4. The Compact PCI bus gigabit dual redundant network card of claim 3, wherein said Ethernet port circuit is comprised of a physical layer chip FW82 82546GB, and said network controller is connected to said Ethernet port circuit via a network transformer.