CN113596635A - All-optical POE network routing switch equipment and system - Google Patents
All-optical POE network routing switch equipment and system Download PDFInfo
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- CN113596635A CN113596635A CN202110885368.0A CN202110885368A CN113596635A CN 113596635 A CN113596635 A CN 113596635A CN 202110885368 A CN202110885368 A CN 202110885368A CN 113596635 A CN113596635 A CN 113596635A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0003—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
Abstract
The invention discloses all-optical POE network routing switch equipment and a system, wherein the all-optical POE network routing switch equipment comprises a first switching control unit, a PSE control unit and a first optical module, and the first switching control unit connects network equipment to an Ethernet; the PSE control unit outputs an Ethernet power supply under the control of the first switching control unit; the first optical module is used for connecting with remote network equipment through an optical fiber copper cable composite cable, performing photoelectric conversion on input and output signals of the first switching control unit, and transmitting optical signals and an Ethernet power supply to the remote network equipment through the optical fiber copper cable composite cable. And transmitting the Ethernet power supply to the remote switch powered device while realizing optical fiber communication between the interactive machines. Thus, the trouble of wiring of the power receiving device of the remote switch is reduced.
Description
Technical Field
The invention relates to the technical field of network equipment, in particular to all-optical POE network routing switch equipment and a system.
Background
Traditional all-optical switches can only take advantage of long-distance transmission, and signals between routers or gateways are transmitted through optical fibers. The optical fiber has the characteristics of large transmission capacity and high speed. Becomes the main signal transmission medium of the backbone network. Due to the rapid development of network technology, fiber to the home is gradually becoming popular. The optical fiber transmission system has the advantages that the optical fiber transmission system can only transmit signals through the existing optical fiber technology, cannot transmit power supplies at the same time, is limited by the limitations of power transmission and distribution installation sites, cannot be flexibly arranged and the like, and accordingly routing equipment is relatively troublesome to install.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide an all-optical POE network routing switch device and system.
To achieve the above object, according to an embodiment of the present invention, an all-optical POE network routing switch device includes:
a first switching control unit for connecting with a network device to connect the network device to an Ethernet;
the PSE control unit is respectively connected with the input power supply and the first switching control unit so as to output the Ethernet power supply under the control of the first switching control unit;
the first optical module is connected with the first switching control unit and the PSE control unit respectively, and is used for being connected with remote network equipment through an optical fiber copper cable composite cable, performing photoelectric conversion on input and output signals of the first switching control unit, and transmitting optical signals and an Ethernet power supply to the remote network equipment through the optical fiber copper cable composite cable.
Further, according to an example of the present invention, the all-optical POE network routing switch apparatus further includes:
and the first optical module is detachably connected with the first switching control unit and the PSE control unit through the first optical module interface.
Further, according to an example of the present invention, the optical fiber copper cable composite cable includes:
the optical fiber connecting layer is used for being connected with a photoelectric conversion signal end of the first optical module;
and the power supply conducting layer is used for being connected with the output end of the Ethernet power supply.
Further, according to an example of the present invention, the first switching control unit includes:
a main controller;
the transformer is connected with the main controller and is used for transforming input and output data of the main controller into voltage and outputting the voltage;
and the Ethernet interface module is connected with the transformer and is also used for being connected with network equipment.
Further, according to an example of the present invention, the PSE control unit includes a POE power controller, a power input end of the POE power controller is connected to an input power, an output end of the POE power controller is connected to the first optical module, and an output power setting end of the POE power controller is further connected to the main controller, so as to output a power with a set power under the action of the main controller.
Further, according to an example of the present invention, the first light module includes:
the photoelectric driver is connected with the main controller;
and the photoelectric transceiving module is connected with the photoelectric driver so as to transmit and receive photoelectric signals under the driving of the photoelectric driver.
On the other hand, an embodiment of the present invention further provides an all-optical POE network routing switch system, including:
the all-optical POE network routing switch device;
and the POE network access device is connected with the all-optical POE network routing switch equipment through a fiber copper cable composite cable so as to communicate with the all-optical POE network routing switch equipment in an optical fiber mode and acquire a power supply through the all-optical POE network routing switch equipment.
Further, according to an example of the present invention, the access POE network device includes:
the second optical module is connected with the all-optical POE network routing switch equipment through the optical fiber copper cable composite cable;
a second switching control unit, connected to the second optical module, for performing optical fiber communication with the all-optical POE network routing switch device through the second optical module;
and the PD powered module is connected with the second optical module so as to acquire the Ethernet power supply output by the all-optical POE network routing switch equipment through the second optical module.
Further, according to an example of the present invention, the PD powered module includes:
and the POE power supply control circuit is connected with the second optical module to introduce an Ethernet power supply and control and output the power supply power of the Ethernet so as to supply power for the Ethernet load equipment.
Further, according to an example of the present invention, the PD powered module further includes:
the voltage stabilizing filter circuit is connected with the power input end of the POE power control circuit so as to perform voltage stabilizing filtering on a power supply;
and the power conversion circuit is connected with the power output end of the POE power control circuit so as to convert the voltage of the output power of the POE power control circuit and output the converted voltage.
The all-optical POE network routing switch device provided by the embodiment of the present invention is configured to connect to a network device through the first switching control unit, so as to connect the network device to an ethernet; the PSE control unit is respectively connected with the input power supply and the first switching control unit so as to output the Ethernet power supply under the control of the first switching control unit; the first optical module is connected with the first switching control unit and the PSE control unit respectively, the first optical module is used for being connected with remote network equipment through an optical fiber copper cable composite cable, and the first optical module is used for performing photoelectric conversion on input and output signals of the first switching control unit and transmitting optical signals and an Ethernet power supply to the remote network equipment through the optical fiber copper cable composite cable. And transmitting the Ethernet power supply to the remote switch powered device while realizing optical fiber communication between the interactive machines. Thus, the trouble of wiring of the power receiving device of the remote switch is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an all-optical POE network routing switch device according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a switching control unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a circuit structure of a PSE control unit according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a first optical module socket circuit structure according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a circuit structure of an optical module according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a PD powered module according to an embodiment of the present invention.
Reference numerals:
an all-optical POE network routing switch device 10;
a first switching control unit 101;
a PSE control unit 102;
a first optical module interface 103;
a first light module 104;
accessing the POE network device 20;
a second switching control unit 201;
a PD power receiving module 202;
POE power control circuit 2021;
a voltage stabilizing filter circuit 2022;
a power conversion circuit 2023;
a second light module 203;
a second light module interface 204.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In one aspect, referring to fig. 1 to fig. 5, an embodiment of the present invention provides an all-optical POE network routing switch device 10, including: a first switching control unit 101, a PSE control unit 102, and a first optical module 104, where the first switching control unit 101 is configured to connect with a network device to connect the network device to an ethernet; the first switching control unit 101 may be connected to a network device through a network interface to implement data communication with the network device, so as to connect the network device to the internet. In an embodiment of the present invention, 4, the all-optical POE network routing switch device 10 according to claim 1, wherein the first switching control unit 101 includes: the transformer T1 is used for transforming input and output data of the main controller U1 into voltage and outputting the voltage; the ethernet interface module SJ1 is connected to the transformer T1, and the ethernet interface module SJ1 is further configured to connect to a network device. Through the Ethernet interface module SJ1, a plurality of network devices can be respectively connected. For example, in one embodiment of the present invention, the ethernet interface modules SJ1 are respectively connected to four ethernet network devices. After voltage conversion is performed on input and output data of each ethernet network device through the transformer T1, the input and output data are output to the main controller U1, so that data exchange between the network device and the main controller U1 is realized, the data of the network device are forwarded to the ethernet through the main controller U1, the data of the received ethernet are acquired and forwarded to each network device, and data exchange between the network device and other devices in the ethernet is realized, so that the network device is connected to the ethernet.
The PSE control unit 102 is connected to the input power supply and the first switching control unit 101, respectively, to output the power over ethernet power supply under the control of the first switching control unit 101; the input power may be converted to a power supply in the ethernet protocol by the PSE control unit 102. For example, the PSE to PD power system meets the IEEE802.3AF/AT/BT PoE power standard. In one embodiment of the present invention, the PSE control unit 102 includes a POE power controller U2, a power input terminal of the POE power controller U2 is connected to an input power, an output terminal of the POE power controller U2 is connected to the first optical module 104, and an output power setting terminal of the POE power controller U2 is further connected to the main controller U1, so as to output a power with a set power under the action of the main controller. The POE power controller U2 can output an ethernet protocol power supply under the control of the controller U1 to meet the protocol requirements of the power class of the ethernet. For example, the input power may be a 54V power, input from the V48 interface of POE power controller U2, and output over the VPORTN _1-8 interface. The output Ethernet power level can be set through a setting end.
The first optical module 104 is connected to the first switching control unit 101 and the PSE control unit 102, the first optical module 104 is configured to be connected to a remote network device through a fiber copper cable composite cable, and the first optical module 104 is configured to perform photoelectric conversion on an input/output signal of the first switching control unit 101, and transmit an optical signal and an ethernet power supply to the remote network device through the fiber copper cable composite cable. In one embodiment of the present invention, the first light module 104 includes: the photoelectric driver U3 and the photoelectric transceiving module UT1, the photoelectric driver U3 is connected with the main controller U1; through data communication between the optoelectronic driver U3 and the main controller U1, the input/output signals of the main controller U1 can be converted into driving signals to drive the optoelectronic transceiver UT1 to emit light. The optoelectronic transceiver module UT1 is connected to the optoelectronic driver U3, so as to transmit and receive optoelectronic signals under the driving of the optoelectronic driver U3. The opto-electronic driver U3 converts the data of the master controller U1 into optical module driving signals to drive the optical module to emit light, converts the electrical signals into optical signals, and transmits the optical signals to a remote switch through an optical fiber. To achieve high speed fiber optic transmission of data; or the optical module receives optical information and outputs the optical information to the photoelectric driver U3, so as to realize the transceiving of data through an optical fiber. In addition, the first optical module 104 can lead out the power over ethernet power supply and transmit the power over ethernet power supply to the remote switch through the optical fiber copper cable composite cable. Therefore, on the basis of optical fiber high-speed communication, the Ethernet power supply meeting the power utilization requirement of the remote switch can be output. In one embodiment of the present invention, the optical fiber copper cable composite cable includes: the optical fiber connection layer is used for being connected with a photoelectric conversion signal end of the first optical module 104; and the optical fiber is arranged in the optical fiber connecting layer, and optical signals are transmitted and received through the optical fiber. The power conducting layer is used for being connected with the output end of the Ethernet power supply. And a power supply conducting wire is arranged in the power supply conducting layer so as to transmit the Ethernet power supply to the remote switch powered equipment. Thus, the trouble of wiring of the power receiving device of the remote switch is reduced.
Referring to fig. 1 and 4, the all-optical POE network routing switch device 10 further includes: a first optical module interface 103J1, wherein the first optical module 104 is detachably connected to the first switching control unit 101 and the PSE control unit 102 through the first optical module interface 103J 1. The first optical module interface 103J1 includes signal connection pins and power supply pins, so that the first switching control unit 101 is led to the first optical module 104 through the signal connection pins to perform optical-electrical signal conversion by the first optical module 104. In addition, the power supply pin can lead out the power supply for ethernet output by the PSE control unit 102 to the first optical module 104, so that the power supply can be transmitted to the remote switch device after the first optical module 104 is connected with the optical fiber copper cable composite cable. Due to the adoption of the detachable connection mode, the pulling-out is convenient during the installation.
On the other hand, referring to fig. 1 to fig. 6, an embodiment of the present invention further provides an all-optical POE network routing switch system, including: the all-optical POE network routing switch device 10 and the access POE network device 20 described above, the access POE network device 20 is connected to the all-optical POE network routing switch device 10 through a fiber copper cable composite cable, so as to communicate with the all-optical POE network routing switch device 10 in an optical fiber manner, and obtain a power supply through the all-optical POE network routing switch device 10. All-optical POE network route switch device 10 and access POE network device 20 pass through respectively compound cable communication connection of optic fibre copper cable, all-optical POE network route switch device 10 still regards as ethernet power supply equipment, exports ethernet power supply, and passes through all-optical POE network route switch device 10 transmits extremely access POE network device 20 does access POE network device 20 supplies power. The access POE network device 20 includes: a second optical module 203, a second switching control unit 201, and a PD powered module 202, where the second optical module 203 is connected to the all-optical POE network routing switch device 10 through the optical fiber copper cable composite cable; the second optical module 203 has the same purpose as the first optical module 104, and is connected with a fiber copper cable composite cable to perform photoelectric conversion on communication data and lead out an ethernet power supply.
The second switching control unit 201 is connected to the second optical module 203, so as to perform optical fiber communication with the all-optical POE network routing switch device 10 through the second optical module 203; the second switching control unit 201 has the same purpose as the first switching control unit 101, and is connected to each ethernet device through an interface to implement data exchange with each ethernet device, and connects each ethernet device to an ethernet.
The PD powered module 202 is connected to the second optical module 203, so as to obtain, through the second optical module 203, the ethernet power supply output by the all-optical POE network routing switch device 10, and output, to the PD powered module 202, the PD powered can perform voltage conversion or direct voltage stabilization on the introduced ethernet power supply, and then output; and supplying power to each circuit module of the access POE network device 20. Or output to each ethernet device connected to the POE network access device 20, so as to supply power to each ethernet device, thereby reducing the trouble caused by power distribution.
The PD powered module 202 described with reference to fig. 6 includes: the POE power control circuit 2021, the POE power control circuit 2021 is connected with the second optical module 203 to introduce the ethernet power, and perform the power over ethernet power control output, so as to supply power to the ethernet load device. The POE power control circuit 2021 includes a power output control integrated chip U4, the power output of power output control integrated chip U4 with the ethernet power supply that second optical module 203 output is connected, in order to with the ethernet power supply that second optical module 203 introduced carries out output power level setting to satisfy ethernet equipment power supply standard, for each receives the power supply of some equipment. The PD powered module 202 further includes: the power supply conversion circuit 2023 and the voltage stabilization filter circuit 2022, the voltage stabilization filter circuit 2022 is connected to the power supply input end of the POE power supply control circuit 2021 to perform voltage stabilization filtering on the power supply; the voltage stabilizing filter circuit 2022 comprises a wave absorbing diode Q51, and the wave absorbing diode Q51 is arranged between the introduced power supply and the reference ground so as to absorb the instant high voltage electricity in the introduced ethernet power supply and avoid the damage of the instant high voltage electricity to the back end circuit. The regulated filter circuit 2022 further includes a capacitor C94, and the capacitor C94 is disposed between the incoming power and the ground reference to perform regulated filtering on the incoming power to output a stable supply point power to the power output control ic U4. Thereby ensuring the stability of the incoming power.
The power conversion circuit 2023 is connected to the power output terminal of the POE power control circuit 2021, so as to perform voltage conversion on the power output by the POE power control circuit 2021, and output the power; the power conversion circuit 2023 may convert the voltage of the power output from the power output control integrated chip U4, for example, the power voltage may be provided by each powered device of the introduced 54V power supply 3.3V power supply. In other embodiments, the other power conversion circuit 2023 may output a power supply with another voltage value to meet the power consumption requirement of the powered device.
All-optical POE switch/gateway realizes that multiport assembles layer all-optical switch and can go upward the switch to multiport access layer optical port and realize POE + + power supply ability (for example, 90W max), promote access layer optical port and go upward switching/gateway networking equipment fixing and not restricted by the real distribution configuration of commercial power, it gets the electricity to assemble the layer down optical port in a flexible way, break through traditional all-optical switch and only can exert long distance transmission advantage but be restricted to the bottleneck that the restriction of power transmission and distribution installation place can not arrange in a flexible way, the high integration of POE technique and all-optical switching has been realized, can greatly reduced all-optical network wiring cost, realize all-optical switching power supply remote monitoring, arrange terminal power supply period in a flexible way to a certain extent, and save the operation cost. In the working process of the multi-port convergence layer all-optical switch/gateway, the PSE control unit 102 supplies power to an external power supply contact terminal to an optical module through an optical module slot, the optical module transmits electric power through an optical fiber copper cable composite wire surface layer copper cable layer, and similarly, the access layer optical port uplink switch/gateway receives the electric power through the optical module by the optical fiber copper cable composite wire, and a PSE-to-PD power supply system meets the IEEE802.3AF/AT/BT PoE power supply standard; in the working process of the multi-port convergence layer all-optical switch/gateway, communication information is transmitted through the optical fiber copper cable composite wire optical fiber, so that the standard of the optical communication industry is met; by means of the optical fiber copper cable composite wire, PoE power supply and an optical communication system are highly fused, the problem that a traditional optical communication terminal cannot obtain electric energy from uplink equipment by means of a communication cable is solved, and the flexibility of optical communication terminal wiring and networking is improved; the all-optical switching power supply remote monitoring is realized, the terminal power supply time period is flexibly arranged to a certain degree, and the operation cost is saved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. An all-optical POE network routing switch device, comprising:
a first switching control unit for connecting with a network device to connect the network device to an Ethernet;
the PSE control unit is respectively connected with the input power supply and the first switching control unit so as to output the Ethernet power supply under the control of the first switching control unit;
the first optical module is connected with the first switching control unit and the PSE control unit respectively, and is used for being connected with remote network equipment through an optical fiber copper cable composite cable, performing photoelectric conversion on input and output signals of the first switching control unit, and transmitting optical signals and an Ethernet power supply to the remote network equipment through the optical fiber copper cable composite cable.
2. The all-optical POE network routing switch device of claim 1, further comprising:
and the first optical module is detachably connected with the first switching control unit and the PSE control unit through the first optical module interface.
3. The all-optical POE network routing switch device of claim 1, wherein the copper-over-fiber cable composite cable comprises:
the optical fiber connecting layer is used for being connected with a photoelectric conversion signal end of the first optical module;
and the power supply conducting layer is used for being connected with the output end of the Ethernet power supply.
4. The all-optical POE network routing switch device of claim 1, wherein the first switching control unit comprises:
a main controller;
the transformer is connected with the main controller and is used for transforming input and output data of the main controller into voltage and outputting the voltage;
and the Ethernet interface module is connected with the transformer and is also used for being connected with network equipment.
5. The all-optical POE network routing switch device of claim 4, wherein the PSE control unit comprises a POE power controller, a power input terminal of the POE power controller is connected to an input power source, an output terminal of the POE power controller is connected to the first optical module, and an output power setting terminal of the POE power controller is further connected to the main controller, so as to output a power source with set power under the action of the main controller.
6. The all-optical POE network routing switch device of claim 5, wherein the first optical module comprises:
the photoelectric driver is connected with the main controller;
and the photoelectric transceiving module is connected with the photoelectric driver so as to transmit and receive photoelectric signals under the driving of the photoelectric driver.
7. An all-optical POE network routing switch system, comprising:
the all-optical POE network routing switch device of any one of claims 1 to 6;
and the POE network access device is connected with the all-optical POE network routing switch equipment through a fiber copper cable composite cable so as to communicate with the all-optical POE network routing switch equipment in an optical fiber mode and acquire a power supply through the all-optical POE network routing switch equipment.
8. The all-optical POE network routing switch system of claim 7, wherein the access POE network device comprises:
the second optical module is connected with the all-optical POE network routing switch equipment through the optical fiber copper cable composite cable;
a second switching control unit, connected to the second optical module, for performing optical fiber communication with the all-optical POE network routing switch device through the second optical module;
and the PD powered module is connected with the second optical module so as to acquire the Ethernet power supply output by the all-optical POE network routing switch equipment through the second optical module.
9. The all-optical POE network routing switch system of claim 8, wherein the PD powered module comprises:
and the POE power supply control circuit is connected with the second optical module to introduce an Ethernet power supply and control and output the power supply power of the Ethernet so as to supply power for the Ethernet load equipment.
10. The all-optical POE network routing switch system of claim 9, wherein the PD powered module further comprises:
the voltage stabilizing filter circuit is connected with the power input end of the POE power control circuit so as to perform voltage stabilizing filtering on a power supply;
and the power conversion circuit is connected with the power output end of the POE power control circuit so as to convert the voltage of the output power of the POE power control circuit and output the converted voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110885368.0A CN113596635A (en) | 2021-08-03 | 2021-08-03 | All-optical POE network routing switch equipment and system |
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| CN202110885368.0A CN113596635A (en) | 2021-08-03 | 2021-08-03 | All-optical POE network routing switch equipment and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115174280A (en) * | 2022-08-02 | 2022-10-11 | 哈尔滨国铁科技集团股份有限公司 | Trillion active Ethernet electric port module for rail transit data transmission |
| CN116896417A (en) * | 2023-09-11 | 2023-10-17 | 新华三技术有限公司 | Power supply control method and network equipment |
-
2021
- 2021-08-03 CN CN202110885368.0A patent/CN113596635A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115174280A (en) * | 2022-08-02 | 2022-10-11 | 哈尔滨国铁科技集团股份有限公司 | Trillion active Ethernet electric port module for rail transit data transmission |
| CN116896417A (en) * | 2023-09-11 | 2023-10-17 | 新华三技术有限公司 | Power supply control method and network equipment |
| CN116896417B (en) * | 2023-09-11 | 2023-12-22 | 新华三技术有限公司 | Power supply control method and network equipment |
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