CN213585782U - Optical fiber transmission equipment - Google Patents
Optical fiber transmission equipment Download PDFInfo
- Publication number
- CN213585782U CN213585782U CN202022978672.3U CN202022978672U CN213585782U CN 213585782 U CN213585782 U CN 213585782U CN 202022978672 U CN202022978672 U CN 202022978672U CN 213585782 U CN213585782 U CN 213585782U
- Authority
- CN
- China
- Prior art keywords
- optical
- port
- target
- optical fiber
- identification information
- 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.)
- Active
Links
Images
Abstract
The utility model discloses an optical fiber transmission equipment, include: a first fiber optic transmitter comprising: the first Ethernet electrical port physical layer module is used for acquiring a target electrical signal, and the first switching chip is used for determining the source address and the destination address information of the target electrical signal and determining the identification information of a departure optical port and an arrival optical port according to the source address and the destination address information; the first dual-optical-port transceiver is connected with the first switching chip and used for carrying out photoelectric conversion and sending a target optical signal according to the identification information of the light-emitting port; a link aggregation group for transmitting a target optical signal between the first optical fiber transmitter and the second optical fiber transmitter; a second fiber optic transmitter comprising: and the second dual-optical-port transceiver is provided with a plurality of optical ports and is used for receiving optical signals at the target optical port according to the identification information of the arriving optical port. Through implementing the utility model discloses, combine exchange chip and link aggregation group transmission data, avoid optic fibre the condition that the mistake appears linking to each other, mistake is even, has guaranteed the normal transmission of service data.
Description
Technical Field
The utility model relates to an optical fiber transmission field, concretely relates to optical fiber transmission equipment.
Background
With the rapid development of information-based construction, people increasingly have strong demands for multimedia communication such as data, voice, image and the like, and therefore, an ethernet broadband access mode is mentioned as an increasingly important position. However, the conventional type 5 cable can only transmit the ethernet electric signal for 100 meters, and cannot adapt to the requirements of the actual network environment in terms of transmission distance and coverage. Meanwhile, the optical fiber communication is widely applied by the advantages of large information capacity, good confidentiality, light weight, small volume, no relay, long transmission distance and the like, and the optical fiber transceiver well solves the problem of the Ethernet in transmission by utilizing the optical fiber which is a high-speed transmission medium.
The optical fiber transceiver is an Ethernet transmission medium converter which exchanges Ethernet twisted pair electric signals within 100 meters with long-distance (more than 100 meters) optical signals; on the basis of the gigabit Ethernet optical fiber transceiver, in order to protect the services of important customers, a GE transceiver added with optical line protection, namely a dual-optical-port GE transceiver, is provided, and has a line-side dual-optical port and a line-side dual-route protection function, and supports automatic switching protection of the optical ports, two optical ports of the dual-optical-port GE transceiver need to be used in pairs, but in an actual construction scene, due to the fact that the connection between an optical cable and a route in engineering is complicated, the condition of misconnection often occurs, namely the two optical ports, in both receiving and sending directions, bidirectional intersection is formed, and the problem of 'Yuanyang fiber' is formed.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides an optical fiber transmission device to solve the problem that two optical ports of a dual optical port transceiver intersect in two directions of receiving and transmitting, resulting in failure of service transmission and incapability of operation and maintenance personnel to find.
According to a first aspect, an embodiment of the present invention provides an optical fiber transmission apparatus, including: the first optical fiber transmitter includes: the first Ethernet port physical layer module is used for acquiring a target electric signal and sending the target electric signal to the first switching chip; the first switching chip is used for receiving and analyzing a target electric signal, determining source address information and destination address information of the target electric signal, determining light-emitting port identification information according to the source address information, and determining arriving light port identification information according to the destination address information; the first dual-optical-port transceiver is connected with the first switching chip, is provided with multiple optical ports and is used for converting the target electrical signal into a target optical signal and sending the target optical signal at a target light-emitting port according to the identification information of the light-emitting port; a link aggregation group, including a logical link, connected to the first optical fiber transmitter and the second optical fiber transmitter, for transmitting the target optical signal between the first optical fiber transmitter and the second optical fiber transmitter; the second optical fiber transmitter includes: and the second dual-optical-port transceiver is provided with a plurality of optical ports and is used for receiving the target optical signal at the target receiving optical port according to the identification information of the arriving optical port.
With reference to the first aspect, in a first implementation manner of the first aspect, the second optical fiber transmitter further includes: the second Ethernet port physical layer module is used for acquiring a target electric signal and sending the target electric signal to a second switching chip; and the second switching chip is used for receiving and analyzing the target electric signal, determining source address information and destination address information of the target electric signal, determining light-emitting port identification information according to the source address information, and determining arriving light port identification information according to the destination address information.
With reference to the first aspect, in a second implementation manner of the first aspect, the link aggregation group operates in a load sharing mode.
With reference to the first aspect, in a third implementation manner of the first aspect, the logical link includes multiple links, and the multiple links are aggregated into a logical link.
With reference to the first aspect, in a fourth implementation manner of the first aspect, the optical fiber transmission apparatus further includes: and the display screen is connected with the first optical fiber transmitter and the second optical fiber transmitter and is used for displaying the identification information of the light-emitting port and the identification information of the light-reaching port of the target optical signal.
The utility model discloses technical scheme has following advantage:
the utility model provides a pair of optical fiber transmission equipment, include: a first fiber optic transmitter comprising: the first Ethernet port physical layer module is used for acquiring a target electric signal and sending the target electric signal to the first switching chip; the first switching chip is used for receiving and analyzing the target electric signal, determining source address information and destination address information of the target electric signal, determining light-emitting port identification information according to the source address information, and determining arriving light port identification information according to the destination address information; the first dual-optical-port transceiver is connected with the first switching chip, is provided with a plurality of optical ports and is used for converting a target electrical signal into a target optical signal and transmitting the target optical signal at a target light-emitting port according to the identification information of the light-emitting port; the link aggregation group comprises a logic link, is connected with the first optical fiber transmitter and the second optical fiber transmitter and is used for transmitting a target optical signal between the first optical fiber transmitter and the second optical fiber transmitter; a second fiber optic transmitter comprising: and the second dual-optical-port transceiver is provided with a plurality of optical ports and is used for receiving the target optical signal at the target receiving optical port according to the identification information of the arriving optical port. Through implementing the technical scheme of the utility model, two optical ports of two optical port transceivers in the correlation technique have been solved, receive and send out two directions and form alternately, lead to the problem that business transmission failure and fortune dimension personnel can't find, send direction and direction of receipt when combining exchange chip to confirm business data transmission, and transmit through link aggregation group, avoid the condition that the mistake appears even, the mistake is even, business data's normal transmission has been guaranteed, and make things convenient for constructor to be under construction.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of optical signals transmitted by different clients through a dual-optical-port fiber transceiver according to an embodiment of the present invention;
fig. 2 is a flowchart of a specific example of an optical fiber transmission apparatus according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of another specific example of the optical fiber transmission device in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In actual use, when an enterprise builds a building network, the optical fiber is generally directly used as a transmission medium to build a backbone network, and in an enterprise intranet, that is, an internal local area network is generally a copper wire, so that the connection between the internal local area network and the backbone network needs to be converted among different ports, different linear shapes and different optical fibers, and the link quality is ensured. The optical fiber transceiver realizes the interconversion of twisted pair electrical signals and optical signals, ensures the smooth transmission of data packets between two networks, and simultaneously extends the transmission distance limit of the networks from 100 meters of copper wires to 120 kilometers (even longer distance). Fiber optic transceivers are typically used in practical network environments where ethernet cable cannot be covered, optical fiber must be used to extend transmission distance, and are typically located in access stratum applications of broadband metropolitan area networks; such as: monitoring high-definition video image transmission of a safety project; it also plays a significant role in facilitating the last mile of line connection of optical fibers to metropolitan and more outer networks. As shown in fig. 1, in practical applications, dual optical port transceivers are usually used in pairs, and complete route protection can be formed between two optical ports, for example, when an optical signal is sent from an optical fiber transceiver at a customer a point to an optical fiber transceiver at a customer B point, when an optical signal at the local end is sent from the direction of the 1 optical port T1, the optical signal must be received by the direction of the 1 optical port R1 on the corresponding optical fiber transceiver at the far end; when the optical signal of the local end is emitted from the direction of the 2 optical port T2, the optical signal must be received by the direction of the 2 optical port R2 on the corresponding remote optical fiber transceiver. Namely, the optical signal transmitting optical port of the local terminal is Tx, and the optical signal receiving optical port corresponding to the remote terminal is Rx; LCT and GE are port identifiers, the LCT represents a debugging port (configuration port) of the equipment, the GE represents a port for connecting a service signal of a client side, and the port is a gigabit Ethernet electric port; PWR, RUN, LINK1, and LINK2 indicate signal lights indicating the operation of the device, where PWR indicates the operating power state of the device, RUN indicates the system software operating state of the device, LINK1 indicates the operating state of the 1-way optical port, and LINK2 indicates the operating state of the 2-way optical port.
Due to the fact that optical fibers are numerous and complicated to connect in practical application scenes, problems may occur, for example, a T1 optical port at the home terminal is connected to a R2 optical port at the far terminal, a T2 optical port at the home terminal is connected to a T1 optical port at the far terminal to form misconnection, two optical ports form bidirectional intersection in both receiving and transmitting directions, and a "mandarin duck fiber" problem occurs; or the direction of the local 1 optical port T1 is connected to the direction of the far-end 2 optical port R2, and the fiber in the direction of the local 2 optical port T2 is connected to the direction of the far-end 1 optical port R1, at this moment, misconnection is formed, data cannot be normally transmitted, and a special 'Yuanyang fiber' problem occurs.
In order to solve the problem, the utility model provides an optical fiber transmission equipment is applied to the practical application scene of remote transmission light signal and signal of telecommunication, and the mandarin duck fine problem that appears in the work progress is avoided to the purpose, guarantees promptly that optical fiber connection is correct to and the normal transmission of service data.
The utility model provides a pair of optical fiber transmission equipment, as shown in FIG. 2, include: a first fiber optic transmitter 10, a second fiber optic transmitter 30, and a link aggregation group 20, wherein,
the first optical fiber transmitter 10, in this embodiment, the first optical fiber transmitter 10 may be an optical transmitter at a client a, and includes:
the first ethernet port physical layer module 11 is configured to obtain a target electrical signal and send the target electrical signal to the first switch chip 12; in this embodiment, the ethernet port physical layer module is configured to obtain an electrical signal at a user side, for example, the electrical signal may be an electrical signal in an intelligent mobile terminal at a user a side, or an electrical signal in a computer device of the user a, where the electrical signals all include data information of the user.
The first switching chip 12 is configured to receive and analyze the target electrical signal, determine source address information and destination address information of the target electrical signal, determine light-emitting port identification information according to the source address information, and determine arriving light port identification information according to the destination address information; in this embodiment, the source address information may be a source MAC address of the target electrical signal, and the destination address information may be a destination MAC address; the switching chip is used for analyzing the target electrical signal and learning a source MAC address and a destination MAC address of the target electrical signal, so that the target electrical signal is determined to be sent from the local optical port and received by the corresponding remote optical port. For example, the identification information of the light emitting port is determined as T1 according to the source mac address; and determining that the receiving optical port identification information is R1 according to the destination mac address, that is, the target signal needs to be sent from the local 1-path optical port and received by the remote 1-path optical port.
The first dual optical port transceiver 13 is connected to the first switch chip 12, and converts the target electrical signal into a target optical signal, and the first dual optical port transceiver 13 is provided with multiple optical ports for transmitting the target optical signal at the target light-emitting port according to the light-emitting port identification information; in this embodiment, a target electrical signal is converted into a target optical signal, and then when the identification information of the light emitting port is determined according to the first switch chip 12, the target optical signal is sent at the client end corresponding to the light emitting port; specifically, when the source mac address determines that the light emitting port identification information is T1, it is determined that the target optical signal is transmitted from the direction of the local 1 light port T1.
A link aggregation group 20, which includes a logical link, connected to the first optical fiber transmitter 10 and the second optical fiber transmitter 30, and configured to transmit the target optical signal between the first optical fiber transmitter 10 and the second optical fiber transmitter 30; in the present embodiment, the link aggregation group 20 is used to connect the first optical fiber transmitter 10 and the second optical fiber transmitter 30, so as to transmit the optical signal from the local optical fiber transceiver to the corresponding remote optical fiber transceiver.
A second fiber optic transmitter 30 comprising:
the second dual optical port transceiver 33 is provided with multiple optical ports, and is configured to receive the target optical signal at the target receiving optical port according to the identification information of the arriving optical port. In this embodiment, when the destination mac address determines that the receiving port identification information is R1, it is determined that the corresponding remote 1 port R1 direction receives the target signal.
The embodiment of the utility model provides a pair of optical fiber transmission equipment, include: a first optical fiber transmitter 10 comprising: the first ethernet port physical layer module 11 is configured to obtain a target electrical signal and send the target electrical signal to the first switch chip 12; the first switching chip 12 is configured to receive and analyze the target electrical signal, determine source address information and destination address information of the target electrical signal, determine light-emitting port identification information according to the source address information, and determine arriving light port identification information according to the destination address information; the first dual optical port transceiver 13 is connected with the first switching chip 12, and the first dual optical port transceiver 13 is provided with multiple optical ports and is used for converting a target electrical signal into a target optical signal and transmitting the target optical signal at a target light-emitting port according to the identification information of the light-emitting port; a link aggregation group 20, which includes a logical link, connected to the first optical fiber transmitter 10 and the second optical fiber transmitter 30, and configured to transmit the target optical signal between the first optical fiber transmitter 10 and the second optical fiber transmitter 30; a second fiber optic transmitter 30 comprising: the second dual optical port transceiver 33 is provided with multiple optical ports, and is configured to receive the target optical signal at the target receiving optical port according to the identification information of the arriving optical port. Implement the technical scheme of the utility model, two optical ports of two optical port transceivers in the correlation technique have been solved, receive and send out two directions and form alternately, lead to the problem that business transmission failure and fortune dimension personnel can't arrange and look into, send direction and direction of receipt when combining exchange chip to confirm business data transmission, and transmit through link aggregation group 20, avoid the optic fibre the condition that the mistake is even, business data's normal transmission has been guaranteed, and make things convenient for constructor to be under construction.
As an optional embodiment of the present invention, as shown in fig. 3, the second optical fiber transmitter 30 further includes:
the second ethernet port physical layer module 31 is configured to obtain a target electrical signal and send the target electrical signal to the second switch chip 32; in this embodiment, the second optical fiber transmitter 30 may be an optical fiber transceiver device disposed at the B-end of the client, and at this time, the ethernet port physical layer module may obtain an electrical signal on an intelligent mobile terminal or a computer device at the B-end of the user.
The second switch chip 32 is configured to receive and analyze the target electrical signal, determine source address information and destination address information of the target electrical signal, determine light-emitting port identification information according to the source address information, and determine arriving light-emitting port identification information according to the destination address information. In this embodiment, the second dual-optical-port transceiver 33 is further configured to convert the target electrical signal into a target optical signal; the target optical signal may be transmitted from the first optical fiber transmitter 10 to the second optical fiber transmitter 30, where the first ethernet port physical layer module 11 at the end of the first optical fiber transmitter 10 is used to obtain the target electrical signal; the first switch chip 12 is configured to receive and analyze a target electrical signal, determine corresponding light-emitting port identification information and light-receiving port identification information when the signal is transmitted from the first optical fiber transmitter 10 to the second optical fiber transmitter 30, convert the target electrical signal into a target optical signal on the first dual optical port transceiver 13, and transmit the target optical signal to the second optical fiber transmitter 30; the target optical signal may be transmitted from the second optical fiber transmitter 30 to the first optical fiber transmitter 10, at this time, the second ethernet port physical layer module 31 at the end of the second optical fiber transmitter 30 is used to obtain the target electrical signal; the second switch chip 32 is configured to receive and analyze the target electrical signal, determine corresponding light-emitting port identification information and receiving port identification information when the signal is transmitted from the second optical fiber transmitter 30 to the first optical fiber transmitter 10, convert the target electrical signal into a target optical signal on the second dual-optical-port transceiver 33, and transmit the target optical signal to the first optical fiber transmitter 10.
As an optional implementation manner of the present invention, the logical link includes a plurality of links, and the plurality of links are aggregated into a logical link; in this embodiment, the link aggregation group 20 refers to a logical link formed by bundling a plurality of links connected to the same device, and may be referred to as a LAG protection group, and connects the LAG protection group with the first optical fiber transmitter 10 and the second optical fiber transmitter 30 to transmit data.
The utility model provides an optical fiber transmission device, combines to aggregate many periodic lines into a logical link, has improved the transmission rate of link, and the scope of action of link aggregation group is between adjacent equipment, provides a method that not only economy but also conveniently improves the link capacity; by bundling multiple physical links, a larger bandwidth data link can be achieved without upgrading existing equipment, with a capacity equal to the sum of the capacities of the physical links. In the link aggregation group, the link members are dynamically backed up with each other, when a certain link is interrupted, other links can quickly take over the work of the link members, and the process of starting the backup by link aggregation is only related to the links in the aggregation group and is not related to the links outside the aggregation group. The link capacity is expanded, and link protection/dual-route protection is realized.
As an optional implementation manner of the present invention, the link aggregation group 20 works in the load sharing mode. In this embodiment, the link aggregation group 20 allocates the service traffic to different transmission links according to a preset load sharing algorithm, so as to implement a link-level load sharing function. When the link aggregation group 20 operates in the load sharing mode, each member link of the link aggregation group 20 is in an operating state, and there is traffic on each link, that is, when the link aggregation group 20 is connected to the first optical fiber transmitter 10 and the second optical fiber transmitter 30, each optical port and each link are in an equal status, and a main line and a standby line are not distinguished.
Specifically, when the "mandarin duck fiber" problem occurs, the link aggregation group 20 is configured to receive, from the PORT1 of the home PORT, traffic, i.e., a target signal, sent by the PORT2 of the corresponding remote PORT. When the optical cable corresponding to the PORT1/2 is interrupted for some reason, the optical PORT switches all the service data to another optical PORT because the optical PORT detects that the optical signal is lost, thereby realizing the dual-route protection of the service.
Specifically, the link aggregation group 20 is connected to the optical fiber transmitter, that is, the LAG protection group is applied to a switch chip, so that when a problem of "double fiber" in which all fibers cross in one direction occurs, that is, when the fibers cross in one direction, an optical cable corresponding to one optical port is interrupted, at this time, based on a basic switching principle, the target signal can be quickly reanalyzed, and then a source MAC address and a destination MAC address of the target signal are learned, thereby realizing retransmission of service data.
The embodiment of the utility model provides a pair of optical fiber transmission equipment based on LAG can effectively solve the problem that "mandarin duck's fibre" appears in the engineering is used, appears the unable problem of business when avoiding optic fibre mistake to link to each other, brings very big facility for constructor.
As an optional implementation manner of the present invention, the optical fiber transmission apparatus further includes:
and the display screen is connected with the first optical fiber transmitter 10 and the second optical fiber transmitter 30 and is used for displaying the identification information of the light-emitting port and the identification information of the light-reaching port of the target signal. In this embodiment, the identification information of the light emitting port and the corresponding identification information of the light receiving port of each service data can be displayed on the display screen, so that the operation and maintenance personnel can observe and monitor conveniently.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (5)
1. An optical fiber transmission apparatus, comprising: a first optical fiber transmitter, a second optical fiber transmitter, and a link aggregation group, wherein,
the first optical fiber transmitter includes:
the first Ethernet port physical layer module is used for acquiring a target electric signal and sending the target electric signal to the first switching chip;
the first switching chip is used for receiving and analyzing a target electric signal, determining source address information and destination address information of the target electric signal, determining light-emitting port identification information according to the source address information, and determining arriving light port identification information according to the destination address information;
the first dual-optical-port transceiver is connected with the first switching chip, is provided with multiple optical ports and is used for converting the target electrical signal into a target optical signal and sending the target optical signal at a target light-emitting port according to the identification information of the light-emitting port;
a link aggregation group, including a logical link, connected to the first optical fiber transmitter and the second optical fiber transmitter, for transmitting the target optical signal between the first optical fiber transmitter and the second optical fiber transmitter;
the second optical fiber transmitter includes:
and the second dual-optical-port transceiver is provided with a plurality of optical ports and is used for receiving the target optical signal at the target receiving optical port according to the identification information of the arriving optical port.
2. The fiber optic transmission apparatus of claim 1, wherein the second fiber optic transmitter further comprises:
the second Ethernet port physical layer module is used for acquiring a target electric signal and sending the target electric signal to a second switching chip;
and the second switching chip is used for receiving and analyzing the target electric signal, determining source address information and destination address information of the target electric signal, determining light-emitting port identification information according to the source address information, and determining arriving light port identification information according to the destination address information.
3. The fiber optic transmission apparatus of claim 1, wherein the link aggregation group operates in a load sharing mode.
4. The fiber optic transmission apparatus of claim 1, wherein the logical link comprises a plurality of links aggregated into a logical link.
5. The fiber optic transmission device of claim 1, further comprising:
and the display screen is connected with the first optical fiber transmitter and the second optical fiber transmitter and is used for displaying the identification information of the light-emitting port and the identification information of the light-reaching port of the target optical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022978672.3U CN213585782U (en) | 2020-12-09 | 2020-12-09 | Optical fiber transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022978672.3U CN213585782U (en) | 2020-12-09 | 2020-12-09 | Optical fiber transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213585782U true CN213585782U (en) | 2021-06-29 |
Family
ID=76548997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022978672.3U Active CN213585782U (en) | 2020-12-09 | 2020-12-09 | Optical fiber transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213585782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116193057A (en) * | 2023-04-26 | 2023-05-30 | 广东视腾电子科技有限公司 | Multi-port transmission optical fiber video extension method and system |
-
2020
- 2020-12-09 CN CN202022978672.3U patent/CN213585782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116193057A (en) * | 2023-04-26 | 2023-05-30 | 广东视腾电子科技有限公司 | Multi-port transmission optical fiber video extension method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1070326C (en) | Method for providing facility protection, cross-connector system and communication system | |
| US5523868A (en) | Apparatus and method for monitoring power loss in a telecommunications system | |
| CN102412896B (en) | Optical line protection system for realizing single-end monitoring | |
| US20060227794A1 (en) | Private network link verification procedure in free space optical communication network | |
| CN110445533A (en) | A kind of dual redundant fiber optic Ethernet Transmission system | |
| CN101282586B (en) | Method, system and apparatus for detecting optical fiber fault in passive optical network | |
| CN207124632U (en) | A kind of double gigabit power port fiber optical transceivers and apply its communication system | |
| CN101729182A (en) | Single-fiber bidirectional looped network protection method, system and device | |
| CN202334524U (en) | Optical link protecting system realizing single-end monitoring | |
| CN105791031B (en) | A kind of method data acquisition and sent | |
| CN213585782U (en) | Optical fiber transmission equipment | |
| CN111901039A (en) | Semi-active base station forward transmission system with line protection and based on miniature wavelength division | |
| CN104135448A (en) | Switch comprising various Ethernet transmission interfaces | |
| CN217655523U (en) | Seat and host integrated distributed KVM device | |
| CN216391010U (en) | Optical cable resource monitoring system | |
| CN113507349B (en) | Photoelectric matching method and system | |
| CN2786873Y (en) | Kilomega fiber transceiver | |
| CN109743112B (en) | OTN networking method, device, equipment and computer readable storage medium | |
| CN210405508U (en) | Video monitoring system based on EPON (Ethernet passive optical network) | |
| CN210093235U (en) | New system of WDM semi-active OLP | |
| CN100372334C (en) | Device and method for realizing Infini Band data transmission in optical network | |
| CN114189285A (en) | pRRU remote system and communication processing method based on same | |
| CN208209956U (en) | Passive automatic light shunting device and its optical fiber telecommunications system | |
| CN105553547A (en) | Monitoring system of standby optical power cable | |
| CN200956589Y (en) | Filter type intelligent photo protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |