CN220359181U - Ethernet switch with bypass electrical port - Google Patents
Ethernet switch with bypass electrical port Download PDFInfo
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- CN220359181U CN220359181U CN202322045603.0U CN202322045603U CN220359181U CN 220359181 U CN220359181 U CN 220359181U CN 202322045603 U CN202322045603 U CN 202322045603U CN 220359181 U CN220359181 U CN 220359181U
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Abstract
The utility model provides an Ethernet switch with a bypass electric port, which comprises an Ethernet switch switching module U1, a plurality of Ethernet signal ports, two double-contact signal relay groups and a signal driver U2, wherein the Ethernet signal ports are connected with the Ethernet switch switching module U2; the external connection network wires of the two bypass network ports are internally connected to the input ends of the corresponding double-contact signal relay groups respectively, the normally open output groups of the two double-contact signal relay groups are connected with the physical ports PHY corresponding to the Ethernet switch exchange module U1, and the normally closed output groups of the two double-contact signal relay groups are connected; the alarm signal output end of the Ethernet switch switching module U1 is connected with the input end of the signal driver U2, and the two output ends of the signal driver U2 are respectively connected with the control ends of the two double-contact signal relay groups. The bypass control technology of the utility model can enable the industrial Ethernet switch to automatically bypass the equipment to eliminate single-point faults when the equipment is in fault or power failure, and ensure continuous and stable operation of the system.
Description
Technical Field
The utility model relates to the technical field of ring network switches, in particular to an Ethernet switch port bypass control system.
Background
In a cascade network or a loop self-healing network, a ring network switch is generally adopted, the ring network switch is located in a main network link, 1 ring network port is connected with a previous node, the other ring network port is connected with a next node, and all network traffic on the link passes through the switch. When one of the ring network switches fails (equipment fails, a system hangs up or software fails), traffic cannot pass through the network link, thereby threatening the normal operation and stability of the network. Although the reliability and redundancy of the transmission link can be improved by using the ring network self-healing scheme to realize ring network self-healing, when two or more node devices are powered down, the system hangs up or software fails, information of all nodes (including normal running nodes) between two failure points still cannot be transmitted, and a large amount of information is possibly lacked.
Highly reliable systems, such as intelligent traffic systems, require real-time, reliable network communications to support functions such as vehicle monitoring, signal control, monitoring equipment, etc., and cannot allow for large-area information loss.
Disclosure of Invention
The utility model aims to solve the problems in the background art and provides an Ethernet switch with a bypass electric port. The bypass control technology of the utility model can enable the industrial Ethernet switch to automatically bypass the equipment to eliminate single-point faults when the equipment is in fault or power failure, can provide microsecond-level equipment jumper switching time, enables other switches with normal functions to transmit information, and ensures continuous and stable operation of the system.
The technical scheme of the utility model is as follows:
the utility model provides an Ethernet switch with bypass electric ports, which comprises an Ethernet switch switching module U1, a plurality of Ethernet signal ports, two bypass network ports, two double-contact signal relay groups and a signal driver U2, wherein the bypass network ports are connected with the Ethernet switch switching module U1;
the external connection network wires of the two bypass network ports are internally connected to the input ends of the corresponding double-contact signal relay groups respectively, the normally open output groups of the two double-contact signal relay groups are connected with the physical ports PHY corresponding to the Ethernet switch exchange module U1, and the normally closed output groups of the two double-contact signal relay groups are connected; the alarm signal output end of the Ethernet switch switching module U1 is connected with the input end of the signal driver U2, and the two output ends of the signal driver U2 are respectively connected with the control ends of the two double-contact signal relay groups.
Further, the bypass network port is connected with an external network line by adopting a T568B or T568A standard line sequence.
Further, the power supply of the two-contact signal relay groups and the signal driver U2 adopts a 5V level on the switch.
Further, the double-contact signal relay group is provided with a group of signal input ends, a group of normally open signal output ends, a group of normally closed signal output ends and a control signal end; the signal input end and the signal output end are respectively provided with eight paths of signal contacts, and the definition and the serial number of the input signal group are in one-to-one correspondence with the definition and the serial number of the output signal group; when the control signal is at a low level, the input signal is switched to the normally closed signal output end; when the control signal is high, the input signal switches to the normally open signal output.
Further, the low level is 0V and the high level is 3.3V/5V.
Further, the double-contact signal relay set adopts OMRON Corporation and model G6S; the signal driver U2 adopts a commercially available 74 series chip; the Ethernet switch switching module U1 adopts a network management type switch FSLB12TM.
The utility model has the beneficial effects that:
the utility model can realize the Ethernet signal access and switching function under the condition that the switch works normally, and switch and transmit the data frame input by the local port and the data frame on the bypass port. Under the abnormal working condition of the switch, the two bypass ports are directly connected with each other to disconnect the switch of the node, so that the data bypass transmission is realized, and the abnormal state of the node is prevented from influencing the data frame transmission of other nodes.
The switch has the bypass transmission function, is widely applied to network topologies of cascade transmission and ring network transmission, and is accessed into a transmission network when the node works normally, thereby realizing normal data access and exchange of the node. When the node works abnormally, the node exchanger is bypassed, and the upstream and downstream exchangers are automatically short-circuited through bypass ports and are directly connected with each other, so that the reliable transmission of the transmission network is realized.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.
Fig. 1 is a functional block diagram of an ethernet switch with a bypass electrical port in accordance with the present utility model.
Fig. 2 is a connection diagram of the use status of the ethernet switch with bypass electrical port of the present utility model.
Detailed Description
Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein.
As shown in fig. 1 and 2, the utility model provides an ethernet switch with a bypass electric port, which comprises an ethernet switch switching module U1 and a plurality of ethernet signal ports, and the switch further comprises two bypass network ports, two double-contact signal relay groups and a signal driver U2;
the external Ethernet signal passes through 2 bypass network ports RJ45, the network cable of other node switches is connected to the outside, the inside is connected to the input port of 2 double-contact signal relay groups respectively, wherein bypass network port 1 (RJ 45-1) is connected to input port C1-in of double-contact signal relay group 1 (4 x DPDT-1), bypass network port 2 (RJ 45-2) is connected to input port C2-in of double-contact signal relay group 2 (4 x DPDT-2). The normally open output group C1-1 of the double-contact signal relay group 1 (4 x DPDT-1) is connected to the network port input port PHY1 of the Ethernet switch switching module U1, and enters the Ethernet switch switching module to perform normal Ethernet signal switching. The normally open output group C2-1 of the double-contact signal relay group 2 (4 x DPDT-2) is connected to the network port input port PHY2 of the Ethernet switch switching module U1, and enters the Ethernet switch switching module to perform normal Ethernet signal switching.
The normally closed output group C1-2 of the double-contact signal relay group 1 (4-x DPDT-1) is directly connected with the normally closed output group C2-2 of the double-contact signal relay group 2 (4-x DPDT-1).
The Ethernet switch switching module U1 has the Ethernet switching function of a general network management type Ethernet switch, is provided with a plurality of physical network ports PHY 1-PHYN and is provided with an abnormal alarm output port;
the network port input port PHY1 of the Ethernet switch switching module U1 is connected with the normally open output group C1-1 of the double-contact signal relay group 1 (4-x DPDT-1), and the network port input port PHY2 is connected with the normally open output group C2-1 of the double-contact signal relay group 2 (4-x DPDT-2); the other network interfaces PHY 3-PHYN of the switching module are directly connected with the external Ethernet signal ports RJ 45-3-RJ 45-N as the access ports of the local Ethernet equipment to realize the access and switching functions of the Ethernet data frames.
The alarm output port GPIO-1 of the Ethernet switch switching module U1 is connected with the input port of the signal driver U2 and used as a switching control signal of the double-contact signal relay group.
The alarm triggering conditions comprise ring network abnormality, power supply abnormality, port abnormality disconnection and the like.
When the switch works normally, the alarm output port GPIO-1 is high level 3.3V/5V, the input signals LAN1 and LAN2 of 2 bypass RJ45 interfaces are simultaneously switched to the normally open signal output groups C1-1 and C2-1, and then the input signals of the bypass RJ45 interfaces are sent into the Ethernet switch switching module for data frame switching and transmission normally.
When the switch works abnormally, the alarm output port GPIO-1 is at a low level and 0V, the input signals LAN1 and LAN2 of the 2 bypass RJ45 interfaces are simultaneously switched to the normally closed signal output groups C1-2 and C2-2, so that the two bypass RJ45 interfaces are short-circuited, data are not accessed into the Ethernet switch switching module any more, the node switch is directly bypassed, and the continuous transmission of signals on the RJ45 interfaces is ensured to be uninterrupted.
The alarm output port GPIO-1 of the ethernet switch switching module U1 is connected to the input port Din of the signal driver U2. After the driving capability of the signal driver U2 to the signal of the input signal Din is enhanced, the signal is output through the output port Dout and is connected to the control ports CT1 and CT2 of the 2 two-contact signal relay groups to control the switching of the two-contact signal relay groups.
In the utility model, the double-contact signal relay group is formed by combining 4 double-contact signal relays, and the double-contact signal relay is OMRON Corporation in model: G6S; the Ethernet RJ45 interface adopts a commercial standard RJ45 interface of an integrated gigabit network transformer; the signal driver U2 adopts a commercially available universal 74 series chip, for example, 74L04; the ethernet switch switching module U1 adopts an existing network management type switch FSLB12TM.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (6)
1. The Ethernet switch with the bypass electric port comprises an Ethernet switch switching module U1 and a plurality of Ethernet signal ports, and is characterized by also comprising two bypass network ports, two double-contact signal relay groups and a signal driver U2;
the external connection network wires of the two bypass network ports are internally connected to the input ends of the corresponding double-contact signal relay groups respectively, the normally open output groups of the two double-contact signal relay groups are connected with the physical ports PHY corresponding to the Ethernet switch exchange module U1, and the normally closed output groups of the two double-contact signal relay groups are connected; the alarm signal output end of the Ethernet switch switching module U1 is connected with the input end of the signal driver U2, and the two output ends of the signal driver U2 are respectively connected with the control ends of the two double-contact signal relay groups.
2. The ethernet switch with bypass electrical port of claim 1, wherein the bypass port is connected to an external network line using a standard line sequence of T568B or T568A.
3. The ethernet switch with bypass electrical port of claim 1 wherein the power supplies of the two-contact signal relay sets and signal driver U2 are at 5V level on the switch.
4. The ethernet switch with bypass electrical port of claim 1, wherein the set of dual contact signal relays has a set of signal inputs, a set of normally open signal outputs, a set of normally closed signal outputs, and a control signal; the signal input end and the signal output end are respectively provided with eight paths of signal contacts, and the definition and the serial number of the input signal group are in one-to-one correspondence with the definition and the serial number of the output signal group; when the control signal is at a low level, the input signal is switched to the normally closed signal output end; when the control signal is high, the input signal switches to the normally open signal output.
5. The ethernet switch with bypass electrical port according to claim 4, wherein the low level is 0V and the high level is 3.3V/5V.
6. The ethernet switch with bypass electrical port of claim 1, wherein the dual contact signal relay set is OMRON Corporation, model G6S; the signal driver U2 adopts a commercially available 74 series chip; the Ethernet switch switching module U1 adopts a network management type switch FSLB12TM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322045603.0U CN220359181U (en) | 2023-07-31 | 2023-07-31 | Ethernet switch with bypass electrical port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322045603.0U CN220359181U (en) | 2023-07-31 | 2023-07-31 | Ethernet switch with bypass electrical port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220359181U true CN220359181U (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322045603.0U Active CN220359181U (en) | 2023-07-31 | 2023-07-31 | Ethernet switch with bypass electrical port |
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| Country | Link |
|---|---|
| CN (1) | CN220359181U (en) |
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2023
- 2023-07-31 CN CN202322045603.0U patent/CN220359181U/en active Active
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Effective date of registration: 20240827 Address after: 17F, Guyang Century Building, No. 600, the Pearl River Road, Xuanwu District, Nanjing, Jiangsu Province, 210000 Patentee after: JIANGSU NEWCOM OPTICAL & ELECTRICAL COMMUNICATION Co.,Ltd. Country or region after: China Patentee after: Nantong Public Security Bureau Chongchuan Branch Address before: 17F, Guyang Century Building, No. 600, the Pearl River Road, Xuanwu District, Nanjing, Jiangsu Province, 210000 Patentee before: JIANGSU NEWCOM OPTICAL & ELECTRICAL COMMUNICATION Co.,Ltd. Country or region before: China |