CN210405566U - Optical network system - Google Patents
Optical network system Download PDFInfo
- Publication number
- CN210405566U CN210405566U CN201921407739.9U CN201921407739U CN210405566U CN 210405566 U CN210405566 U CN 210405566U CN 201921407739 U CN201921407739 U CN 201921407739U CN 210405566 U CN210405566 U CN 210405566U
- Authority
- CN
- China
- Prior art keywords
- optical
- path
- main
- branching device
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 451
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 8
- 238000005070 sampling Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Landscapes
- Optical Communication System (AREA)
Abstract
The utility model discloses an optical network system, which comprises a service network, an optical line terminal, an optical branching device, an optical network unit and a management network; the optical line terminal is provided with a plurality of optical lines; each optical line terminal is connected with a service network; each optical line terminal is provided with an optical branching device corresponding to the optical line terminal, a main optical path is arranged between each optical line terminal and the optical branching device corresponding to the optical line terminal, and a standby optical path is arranged between each optical line terminal and at least one optical branching device not corresponding to the optical line terminal; each optical branching device is also connected with a plurality of optical network units in a downlink manner; each optical branching device is in communication connection with a management network, so that the management network can monitor the working state of the optical branching device and perform switching between a main optical path and a standby optical path on the optical branching device.
Description
Technical Field
The present invention relates to the field of optical network communications, and in particular, to an optical network system and an optical branching device.
Background
A Passive Optical Network (PON) is a pure medium Network, which avoids electromagnetic interference and lightning impact of external devices, reduces the failure rate of lines and external devices, improves system reliability, and saves maintenance cost, and is a technology expected by telecommunication maintenance departments for a long time.
The PON has better service transparency and can be applied to signals of any system and rate in principle. Particularly, an ATM Passive Optical Network (APON) can make the cost lower by 20% -40% than that of the traditional PDH/SDH access system based on circuit switching by utilizing the concentration and statistical multiplexing of ATM and combining the sharing function of a passive splitter to optical fibers and optical line terminals.
The lightless network is a point-to-multipoint optical fiber transmission and access technology, the downlink adopts a broadcasting mode, the uplink adopts a time division multiple access mode, tree, star, bus and other topological structures can be flexibly formed, and only a simple optical splitter needs to be installed at an optical branch point, so that the lightless network has the advantages of saving optical cable resources, sharing bandwidth resources, saving machine room investment, high network building speed, low comprehensive network building cost and the like. The non-light source network comprises an ATM-PON and an Ethernet-PON. Most optical branching devices are basically passive devices with single-path trunk line optical input and multi-path optical output, and the devices do not have the line backup of the trunk line and cannot provide line disaster recovery protection; the PON equipment manufacturer provides PON port protection across the OLT, and a backup PON port and a backup optical path at the OLT equipment end are also added, but linkage judgment is carried out by relying on an uplink service port of the PON equipment, and once communication of the uplink service port is interrupted, the downlink protection function of the PON port is invalid.
Disclosure of Invention
An object of the present invention is to provide an optical network system, an optical path switching method, an optical switching instruction issuing method, and an optical branching device, so that the optical branching device can be remotely controlled to perform optical path switching, and normal communication of all devices connected downstream from the optical branching device is ensured.
Specifically, the invention is realized by the following technical scheme:
an optical network system comprises a service network, an optical line terminal, an optical branching device, an optical network unit and a management network; the optical line terminal is provided with a plurality of optical lines; each optical line terminal is connected with a service network; each optical line terminal is provided with an optical branching device corresponding to the optical line terminal, a main optical path is arranged between each optical line terminal and the optical branching device corresponding to the optical line terminal, and a standby optical path is arranged between each optical line terminal and at least one optical branching device not corresponding to the optical line terminal; each optical branching device is also connected with a plurality of optical network units in a downlink manner; each optical branching device is in communication connection with a management network, so that the management network can monitor the working state of the optical branching device and perform switching between a main optical path and a standby optical path on the optical branching device.
Preferably, each optical line terminal is configured with a management network switch, each management network switch is connected to the management network, the management network switch is configured to perform mutual information transmission between the management network and the optical line terminal, and each optical splitter is connected to the management network switch on the corresponding optical line terminal, and is configured to receive management network information sent by the management network switch or send optical line terminal information to the management network.
Preferably, the optical branching apparatus includes a main optical path optical power detection unit, a control unit, an instruction signal receiving unit, an optical switch unit, and a light splitting unit, the main optical path optical power detection unit is configured to detect optical power input to a main optical path in the optical branching apparatus, the instruction signal receiving unit is configured to receive an optical switching instruction, and the control unit is connected to the main optical path optical power detection unit instruction signal receiving unit and the optical switch unit, respectively; the light splitting part is also connected with a main light path and a standby light path input into the light splitting device through an optical switch part, the control part is used for receiving the power value of the main light path detected by the optical power detection part of the main light path and receiving the optical switching command received by the command signal receiving part, and the control part controls the optical switch part to carry out switching operation according to the received power value of the main light path and the optical switching command and according to a preset control rule.
Preferably, the main optical path optical power detector includes an asymmetric optical splitter and an optical power detector, and the asymmetric optical splitter has one end connected to the main optical path input to the optical branching device and the other end connected to the optical power detector.
Preferably, the instruction signal receiving unit includes an intelligent optical branch management port and an ethernet, where the intelligent optical branch management port is a management port based on an ethernet protocol, and the intelligent optical branch management port receives the optical switching instruction from the management network and transmits the optical switching instruction to the control unit through the ethernet.
An optical branching apparatus includes a main optical path optical power detection section for detecting optical power in a main optical path input to the optical branching apparatus, a control section for receiving an optical switching instruction, an instruction signal reception section for receiving an optical switching instruction, and a light splitting section connected to the main optical path optical power detection section instruction signal reception section and the light switching section, respectively;
the optical splitting part is also connected with a main optical path and a standby optical path input into the optical splitting device through an optical switch part, the control part is used for receiving a main optical path power value detected by the main optical path optical power detection part and receiving an optical switching instruction received by the instruction signal receiving part, and the control part controls the optical switch part to perform switching operation according to a preset control rule according to the received main optical path power value and the optical switching instruction;
the main optical path optical power detection part comprises an asymmetric optical splitter and an optical power detector, wherein one end of the asymmetric optical splitter is connected with the main optical path input into the optical branching device, and the other end of the asymmetric optical splitter is connected with the optical power detector;
the instruction signal receiving part comprises an intelligent optical shunt management port and an Ethernet, the intelligent optical shunt management port is arranged in the optical shunt equipment and is a management port based on an Ethernet protocol, the intelligent optical shunt management port receives an optical switching instruction from the management network and transmits the optical switching instruction to the control part through the Ethernet, and the control part is a microcontroller.
As can be seen from the foregoing technical solutions, embodiments of the present invention provide an optical network system, an optical path switching method, an optical switching instruction issuing method, and an optical branching device.
The invention has the beneficial effects that: (1) adding a management port to the optical branching equipment, networking the management port and the management port of the OLT to form a management network, and completely separating the service network and the management network to operate independently; (2) the optical branching equipment can perform remote optical path switching under the condition that the uplink service of the OLT is interrupted, and perform automatic optical path switching under the condition that a main optical path of a PON port connected under the OLT fails; and (3) under the abnormal condition that the optical branching equipment is powered off or the management port is disconnected, the optical path state before the abnormal condition of the equipment is not influenced, and the reliability of the original communication network is not reduced due to the introduction of the optical branching equipment.
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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure of an optical network system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an optical network system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an intelligent optical splitter according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an intelligent optical splitter according to a third embodiment of the present invention;
fig. 5 is a schematic diagram of an automatic optical path switching method according to a fourth embodiment of the present invention;
fig. 6 is a schematic diagram of another optical path automatic switching method according to a fourth embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a method for issuing an optical switching instruction according to a fifth embodiment of the present invention;
fig. 8 is a schematic diagram of another optical switching instruction issuing method according to the fifth embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The present invention will be described in detail below by way of examples.
Example one
An Optical Network system according to a first embodiment of the present invention is provided, as shown in fig. 1, where the Optical Network system is a Passive Optical Network (PON) system, and the Optical Network system includes a service Network, an Optical Line Terminal (OLT), an Optical branching device, an Optical Network Unit (ONU), and a management Network; the optical line terminal is provided with a plurality of optical lines.
Each optical line terminal is connected with a service network; each optical line terminal is provided with an optical branching device corresponding to the optical line terminal, a main optical path is arranged between each optical line terminal and the corresponding optical branching device, and a standby optical path is arranged between each optical line terminal and at least one optical branching device not corresponding to the optical line terminal.
Each optical branching device is also connected with a plurality of optical network units in a downlink manner; each optical branching device is in communication connection with a management network, so that the management network can monitor the working state of the optical branching device and perform switching between a main optical path and a standby optical path on the optical branching device.
Specifically, each optical line terminal is configured with a management network switch, each management network switch is connected with the management network, the management network switch is used for mutual information transmission between the management network and the optical line terminal, and each optical branching device is connected with the management network switch on the corresponding optical line terminal and is used for receiving the management network information sent by the management network switch or sending the optical line terminal information to the management network.
Specifically, as shown in fig. 2, the optical network system is a passive optical network system, and the optical network system includes a service network, a first optical line terminal, a second optical line terminal, a first optical splitter, a second optical splitter, a plurality of first optical network units, a plurality of second optical network units, a first management network switch, a second management network switch, and a management network, where the first optical line terminal and the second optical line terminal are both connected to the service network, the first optical line terminal and the second optical line terminal are respectively connected to the first optical splitter and the second optical splitter, the first optical splitter and the second optical splitter are respectively connected to the first optical network units and the second optical network units, the first optical splitter and the second optical splitter are further connected to the management network through the first management network switch and the second management network switch, the plurality of optical line terminals can correspond to one uplink port, and the management network switch can be connected and controlled by a plurality of uplink ports and the optical line terminals.
The embodiment of the invention provides an optical network system, which is a passive optical network system and comprises a service network, an optical line terminal, an optical branching device, an optical network unit and a management network; the optical line terminal is provided with a plurality of optical lines. The embodiment of the invention adds a communication cable to the optical branching equipment to be connected to the management network switch, and then the working state of the optical branching equipment can be monitored through the management network, and the forced switching of the remote optical path can be carried out.
Example two
An optical network system according to a second embodiment of the present invention is, as shown in fig. 3, in the optical network system according to the first embodiment, where the optical branching device includes a main optical path optical power detection unit, a control unit, an instruction signal receiving unit, an optical switch unit, and a light splitting unit, the main optical path optical power detection unit is configured to detect optical power input to a main optical path in the optical branching device, the instruction signal receiving unit is configured to receive an optical switching instruction, and the control unit is connected to the main optical path optical power detection unit instruction signal receiving unit and the optical switch unit, respectively.
The light splitting part is also connected with a main light path and a standby light path input into the light splitting equipment through the light switch part, the control part is used for receiving the power value of the main light path detected by the light power detection part of the main light path and receiving the light switching instruction received by the instruction signal receiving part, and the control part controls the light switch part to carry out switching operation according to the received power value of the main light path and the light switching instruction and a preset control rule, namely controls the light splitting part to select one light path of the main light path or the standby light path to carry out downlink conduction.
The embodiment of the invention provides an optical network system, in which the optical branching device comprises a main optical path optical power detection part, a control part, an instruction signal receiving part, an optical switch part and a light splitting part, the main optical path optical power detection part is used for detecting the optical power input into a main optical path in the optical branching device, the instruction signal receiving part is used for receiving an optical switching instruction, and the control part is respectively connected with the instruction signal receiving part and the optical switch part of the main optical path optical power detection part. The embodiment of the invention controls the light splitting part to perform light splitting operation, namely, controls the light splitting part to select one of the main light path or the standby light path to perform downlink conduction.
EXAMPLE III
An optical network system according to a third embodiment of the present invention is, as shown in fig. 4, based on the second embodiment, the optical power detection unit of the main optical path includes an asymmetric optical splitter and an optical power detector, where one end of the asymmetric optical splitter is connected to the main optical path input to the optical branching device, and the other end of the asymmetric optical splitter is connected to the optical power detector, and the asymmetric optical splitter can extract optical power with a preset proportion from the main optical path for optical power detection, so that the optical power used for signal communication of the original main optical path is relatively unaffected, and the extracted optical power used for detection can also be used for detection of a normal communication range of the optical power.
Further, the instruction signal receiving portion includes an intelligent optical branch management port and an ethernet, where the intelligent optical branch management port is a management port based on an ethernet protocol, and the intelligent optical branch management port receives the optical switching instruction from the management network and transmits the optical switching instruction to the control portion through the ethernet, and specifically, the control portion is a microcontroller.
Specifically, the spectroscopic portion includes n: 1 optical switch, the splitting part comprising a symmetrical optical splitter, the n: the 1 optical switch has n input terminals and 1 output terminal, wherein n: 1 photoswitch with microcontroller connects, can switch on the light path of the same way in n input to the output under microcontroller's control, n: 1, the output end of the optical switch is connected with the input end of a symmetrical optical splitter, the output end of the symmetrical optical splitter is provided with a plurality of optical paths, and n: the value of n for 1 optical switch is consistent with the number of input optical paths, and in one embodiment of the invention, the input optical paths to n: 1, if the input end of the optical switch is a main optical path and a standby optical path, selecting 2: 1 optical switch.
Further, the optical branching device further includes a power supply module, and the power supply module is configured to supply power to other modules in the optical branching device.
An embodiment of the present invention provides an optical network system, in which the main optical path optical power detection unit includes an asymmetric optical splitter and an optical power detector, and one end of the asymmetric optical splitter is connected to the main optical path input to the optical branching device, and the other end of the asymmetric optical splitter is connected to the optical power detector. The embodiment of the invention uses the asymmetric optical splitter to detect the optical power, so that the optical power of the original main optical path signal communication is relatively not influenced, and the optical power extracted for detection can also be used for detecting the normal communication range of the optical power.
Example four
A fourth embodiment of the present invention provides an optical path automatic switching method, as shown in fig. 5, where the optical network system according to any one of the first to third embodiments is used in an optical branching device, and the method includes:
s1: judging whether a light switching command is received, if so, executing S3, otherwise, executing S2;
s2: judging whether the main optical path is in fault, if so, executing S3, otherwise, continuing executing S2 until judging that the optical switching instruction is received, and then executing S3;
s3: and conducting the standby optical path to the optical network unit.
Specifically, as shown in fig. 6, the S1 specifically includes:
s11: judging whether a light switching instruction is received, if so, setting the identification position, and then executing S3, otherwise, resetting the identification position, and then executing S2;
the S2 specifically includes:
s21: judging whether the identification bit is cleared, if so, executing S22, and if not, executing S3;
s22: and judging whether the primary optical path is in fault, if so, executing S3, and if not, continuing executing S21.
Specifically, on the basis of the second or third embodiment, in S2, the determining whether the primary optical path fails includes:
the control part receives the sampling power of the main optical path detected by the optical power detection part of the main optical path, judges whether the sampling power is smaller than a preset sampling power threshold value, and judges that the main optical path has a fault if the sampling power is smaller than the preset sampling power threshold value.
The embodiment of the invention provides an automatic optical path switching method, which judges whether an optical switching instruction is received or not, if so, conducts a standby optical path to an optical network unit, and if not, judges whether a main optical path fails or not. The embodiment of the invention fully considers the source of the fault, so that the stability of the optical network system is better.
EXAMPLE five
A fourth embodiment of the present invention provides a method for issuing an optical switching instruction, where as shown in fig. 7, the method uses an optical network system according to any one of the first to third embodiments, and includes:
s41: the optical line terminal detects the interruption of the upper connection port network or the failure of the optical line terminal;
s42: the management network obtains fault information;
s43: and the management network sends a light emitting switching instruction to the optical branching equipment according to the fault information.
Specifically, when the optical line terminal detects that the uplink port network is interrupted, the sent fault information includes a trap fault packet.
Specifically, as shown in fig. 8, the failure of the optical line terminal itself includes:
411: the management network sends a heartbeat detection packet to the optical line terminal;
412: and judging whether heartbeat response is overtime or not, if so, detecting that the management fault occurs in the optical line terminal by the management network, and acquiring fault information.
The embodiment of the invention provides a method for issuing an optical switching instruction, wherein an optical line terminal detects that an upper connection port network is interrupted or the optical line terminal has a fault; the optical line terminal sends fault information to a management network; and the management network detects that a light-emitting switching instruction is sent to the optical branching equipment according to the received fault information sent by the optical line terminal. The embodiment of the invention considers whether the light splitting operation is carried out or not from multiple aspects, ensures the light splitting operation to be carried out in time, and further increases the stability of the optical network system.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those skilled in the art will appreciate that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware to perform the steps, and the program may be stored in a computer-readable storage medium, which is referred to herein as a storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. An optical network system is characterized in that the optical network system comprises a service network, an optical line terminal, an optical branching device, an optical network unit and a management network; the optical line terminal is provided with a plurality of optical lines; each optical line terminal is connected with a service network; each optical line terminal is provided with an optical branching device corresponding to the optical line terminal, a main optical path is arranged between each optical line terminal and the optical branching device corresponding to the optical line terminal, and a standby optical path is arranged between each optical line terminal and at least one optical branching device not corresponding to the optical line terminal; each optical branching device is also connected with a plurality of optical network units in a downlink manner; each optical branching device is in communication connection with a management network, so that the management network can monitor the working state of the optical branching device and perform switching between a main optical path and a standby optical path on the optical branching device.
2. The optical network system according to claim 1, wherein each olt is configured with a management network switch, each management network switch is connected to the management network, the management network switch is configured to perform mutual information transmission between the management network and the olt, and each olt is connected to the management network switch on the olt corresponding to the olt, and is configured to receive management network information sent by the management network switch or send olt information to the management network.
3. The optical network system according to claim 1, wherein the optical branching device includes a main optical path optical power detection unit for detecting optical power input to the main optical path in the optical branching device, a control unit for receiving an optical switching instruction, an instruction signal receiving unit for receiving an optical switching instruction, an optical switch unit, and a splitting unit, and the control unit is connected to the main optical path optical power detection unit instruction signal receiving unit and the optical switch unit, respectively; the light splitting part is also connected with a main light path and a standby light path input into the light splitting device through an optical switch part, the control part is used for receiving the power value of the main light path detected by the optical power detection part of the main light path and receiving the optical switching command received by the command signal receiving part, and the control part controls the optical switch part to carry out switching operation according to the received power value of the main light path and the optical switching command and according to a preset control rule.
4. The optical network system according to claim 3, wherein the main optical path optical power detector includes an asymmetric optical splitter and an optical power detector, and one end of the asymmetric optical splitter is connected to the main optical path input to the optical branching device, and the other end of the asymmetric optical splitter is connected to the optical power detector.
5. The optical network system according to claim 4, wherein the command signal receiving unit includes an intelligent optical branch management port and an ethernet, the intelligent optical branch management port is a management port based on an ethernet protocol, and the intelligent optical branch management port receives the optical switching command from the management network and transmits the optical switching command to the control unit through the ethernet.
6. The optical network system according to claim 1, wherein the optical branching device includes a main optical path optical power detection unit for detecting optical power input to the main optical path in the optical branching device, a control unit for receiving an optical switching instruction, an instruction signal receiving unit for receiving an optical switching instruction, an optical switch unit, and a splitting unit, and the control unit is connected to the main optical path optical power detection unit instruction signal receiving unit and the optical switch unit, respectively;
the optical splitting part is also connected with a main optical path and a standby optical path input into the optical splitting device through an optical switch part, the control part is used for receiving a main optical path power value detected by the main optical path optical power detection part and receiving an optical switching instruction received by the instruction signal receiving part, and the control part controls the optical switch part to perform switching operation according to a preset control rule according to the received main optical path power value and the optical switching instruction;
the main optical path optical power detection part comprises an asymmetric optical splitter and an optical power detector, wherein one end of the asymmetric optical splitter is connected with the main optical path input into the optical branching device, and the other end of the asymmetric optical splitter is connected with the optical power detector;
the instruction signal receiving part comprises an intelligent optical shunt management port and an Ethernet, the intelligent optical shunt management port is arranged in the optical shunt equipment and is a management port based on an Ethernet protocol, the intelligent optical shunt management port receives an optical switching instruction from the management network and transmits the optical switching instruction to the control part through the Ethernet, and the control part is a microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407739.9U CN210405566U (en) | 2019-08-27 | 2019-08-27 | Optical network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407739.9U CN210405566U (en) | 2019-08-27 | 2019-08-27 | Optical network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210405566U true CN210405566U (en) | 2020-04-24 |
Family
ID=70338518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921407739.9U Withdrawn - After Issue CN210405566U (en) | 2019-08-27 | 2019-08-27 | Optical network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210405566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446125A (en) * | 2019-08-27 | 2019-11-12 | 成都华跃科技有限公司 | Optical network system, optical path switching method, light switching command delivery method and optical branching equipment |
-
2019
- 2019-08-27 CN CN201921407739.9U patent/CN210405566U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446125A (en) * | 2019-08-27 | 2019-11-12 | 成都华跃科技有限公司 | Optical network system, optical path switching method, light switching command delivery method and optical branching equipment |
| CN110446125B (en) * | 2019-08-27 | 2024-05-24 | 成都华跃科技有限公司 | Optical network system, optical path switching method, optical switching instruction issuing method and optical branching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101854566B (en) | Passive optical network protection method and active/standby switch device and system | |
| US8655168B2 (en) | Passive optical network maintenance method, an optical network unit, and an optical line terminal | |
| CN101047442B (en) | Maintenance method of passive optical network and its system | |
| CN102823270B (en) | The method and apparatus of the protection in optical-fiber network | |
| EP2966798B1 (en) | Active and standby changeover method, apparatus, device, and system for network device | |
| WO2010047950A3 (en) | Method and system for protection switching in ethernet passive optical networks | |
| CN102035597B (en) | Method, device and system for switching between main terminal and standby terminal of passive optical network (PON) | |
| CN101282586B (en) | Method, system and apparatus for detecting optical fiber fault in passive optical network | |
| CN104393914B (en) | A multiplex route recovering method for an optical fiber differential protection device | |
| EP3220556B1 (en) | Method, device and system for detecting rogue optical network unit | |
| CN101369846A (en) | Passive optical network signal monitoring method and electric relay reactivator | |
| CN102480323A (en) | System and method for realizing remote disaster recovery of optical line terminal (OLT) | |
| CN104734773A (en) | C-type optical link protection switching optimization method of GPON (Gigabit Passive Optical Network) | |
| CN101047443B (en) | Fault detection debugging method of passive optical network system and communication message device | |
| CN210405566U (en) | Optical network system | |
| CN112738660B (en) | Detection method, device and system of passive optical network | |
| CN102149027B (en) | Path switching method, system and downlink data transmission method | |
| US20150215034A1 (en) | Pon system and olt | |
| CN110446125B (en) | Optical network system, optical path switching method, optical switching instruction issuing method and optical branching device | |
| CN102648590A (en) | Method, system and device for communication in the optical network system | |
| CN101895797A (en) | Method and device for realizing all-fiber protection | |
| CN210093235U (en) | New system of WDM semi-active OLP | |
| CN103297123A (en) | Method and system for monitoring light splitter | |
| CN110166858A (en) | The ONU adaptive method for switching of PON network | |
| CN102104424B (en) | Protection method and system for PON (Passive Optical Network) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200424 Effective date of abandoning: 20240524 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200424 Effective date of abandoning: 20240524 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |