CN208174685U - Optical communication wire line protection device and system - Google Patents
Optical communication wire line protection device and system Download PDFInfo
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- CN208174685U CN208174685U CN201820675825.7U CN201820675825U CN208174685U CN 208174685 U CN208174685 U CN 208174685U CN 201820675825 U CN201820675825 U CN 201820675825U CN 208174685 U CN208174685 U CN 208174685U
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Abstract
The utility model provides optical communication wire line protection device and system, is related to technical field of photo communication, wherein the optical communication wire line protection device includes：Active link and reserve link disposed in parallel, active link and reserve link intersect in crosspoint after being separated by pre-determined distance, link monitoring device and link switching device are arranged in crosspoint, optical signal transmitter, active link/reserve link and optical signal receiver are sequentially connected, link monitoring device has multiple, and it is all disposed in above-mentioned crosspoint, optical signal transmitter launches outward optical signal, whether link monitoring device monitoring optical signal there is frame losing on active link/reserve link, link switching device is when the frame losing quantity of optical signal is more than the threshold value of setting, control active link is switched on reserve link, or, control reserve link is switched on active link, optical signal receiver receives the optical signal through being transmitted across, the phenomenon that effectively prevent will appear in optical transmission chain transmission frame losing or delay.
Description
Technical field
The utility model relates to technical field of photo communication more particularly to optical communication wire line protection device and systems.
Background technique
Optic communication is a kind of communication mode using light wave as carrier wave, and the existing method for increasing optical transmission chain bandwidth has two
Kind：First is that improving the single channel transmission rate of optical fiber；Second is that increasing the number of wavelengths transmitted in single fiber, i.e. wavelength-division multiplex technique.
Compared with other existing communication modes, optic communication is had the following advantages that：Message capacity is big-and it is than traditional open-wire line, coaxial electrical
Cable, microwave etc. will be higher by tens or even thousands of times or more, and the transmission capacity of an optical fiber is so huge, and can be in an optical cable
It is very big including tens even thousands of optical fiber, transmission capacities；Repeater span length-has extremely low attenuation system due to optical fiber
Number can make its repeater span reach several hundred kilometers or more if being equipped with light transmission appropriate and optical receiving device.Security performance is good-light
The area Zhi Qixin carries out when wave transmits in a fiber, there is no that light " leaks " out, therefore its security performance is very good.It is suitable
Should be able to power it is strong-be not afraid of the interference, corrosion-resistant of extraneous strong-electromagnetic field, it is flexible strong.It is small in size, it is light-weight-to be convenient for construction maintenance just
It is convenient for construction maintenance in construction maintenance convenient for construction maintenance.The system of laying of optical cable is convenient, flexible-it can both be applied with direct-burried, pipeline
And if can be water-bed and aerial.Raw material sources are abundant, and shadow price is cheap.
Although optic communication has lot of advantages, in the specific implementation process, due to various reasons, optical signal is in light
Also the case where will appear transmission frame losing or delay in transmission link, cause optical receiving end that can not timely and effectively receive completely
Transmitting data frame.
To sum up, it there is no effective solution method about will appear the problem of transmitting frame losing in optical transmission chain at present.
Utility model content
In view of this, the utility model embodiment has been designed to provide optical communication wire line protection device and system, lead to
Setting optical signal transmitter, link monitoring device, link switching device, active link, reserve link and optical signal receiver etc. are crossed, is mentioned
The efficiency of optical transmission chain transmission optical signal is risen.
In a first aspect, the utility model embodiment provides optical communication wire line protection device, including：Optical signal transmitter,
Link monitoring device, link switching device, active link, reserve link and optical signal receiver；
The active link and the reserve link are arranged in parallel, and, the active link and the reserve link are in phase
It being intersected in crosspoint after pre-determined distance, the link switching device is arranged in the crosspoint, the optical signal transmitter,
The active link and the reserve link and the optical signal receiver are sequentially connected, the link monitoring device have it is multiple, and,
Multiple link monitoring devices are arranged in the crosspoint of the active link and the reserve link；
The optical signal transmitter, for launching outward optical signal；
Whether the link monitoring device goes out on the active link and the reserve link for monitoring the optical signal
Existing frame losing；
The link switching device, for controlling when the frame losing quantity for monitoring the optical signal is more than the threshold value of setting
The active link is switched on the reserve link, is switched on the active link alternatively, controlling the reserve link；
The optical signal receiver, for receiving the optical signal through the active link and reserve link transmission, and,
The optical signal received is handled.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the optical signal transmitter is connected with the active link.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, it further include photo-coupler, the photo-coupler is connected with the link switching device；
The photo-coupler, for the optical signal on the active link and the reserve link to be isolated.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, it further include primary fault monitor, the primary fault monitor is connected with the active link；
The primary fault monitor, for monitoring whether the active link transmission fault occurs, and, detecting
It states after transmission fault occurs in active link and is cut to the upper one link switching device transmission first being connected with the active link
Change signal；
The link switching device, for will be described on the optical signals one after receiving first switching signal
Link switching device is transferred on the reserve link.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect,
In, it further include alternate fault monitor, the alternate fault monitor is connected with the reserve link；
The alternate fault monitor, for monitoring whether the reserve link transmission fault occurs, and, detecting
It states after transmission fault occurs in reserve link and is cut to the upper one link switching device transmission second being connected with the reserve link
Change signal；
The link switching device, for will be described on the optical signals one after receiving second switching signal
Link switching device is transferred on the active link.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, it further include primary fault recovery monitor, the primary fault recovery monitor is connected with the active link；
Whether the primary fault recovery monitor, the transmission fault for monitoring the active link restore, and, it is examining
The transmission fault for measuring the active link restores upper one be connected backward with the active link link switching device hair
Send third switching signal；
The link switching device, for will be described on the optical signals one after receiving the third switching signal
Link switching device is transferred on the active link.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, it further include alternate fault Restoration monitoring device, the alternate fault Restoration monitoring device is connected with the reserve link；
Whether the alternate fault Restoration monitoring device, the transmission fault for monitoring the reserve link restore, and, it is examining
The transmission fault for measuring the reserve link restores upper one be connected backward with the reserve link link switching device hair
Send the 4th switching signal；
The link switching device, for will be described on the optical signals one after receiving the 4th switching signal
Link switching device is transferred on the reserve link.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect,
In, the material of the active link is optical fiber.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, the material of the reserve link is optical fiber.
Second aspect, the utility model embodiment provide optical communication wire line protection device, including：Alarm and above-mentioned
Optical communication wire line protection device described in one；
The alarm is connected with the optical communication wire line protection device；
The alarm, when being more than propagation threshold for the transmission duration in the optical communication wire line protection device, outward
Issue sound-light alarm.
Optical communication wire line protection device provided by the embodiment of the utility model and system, wherein optical communication line protection
Device includes：Optical signal transmitter, link monitoring device, link switching device, active link, reserve link and optical signal receiver,
Connection relationship between above-mentioned each device is：Active link and reserve link are arranged in parallel, also, active link and spare chain
Road intersects in crosspoint after being separated by pre-determined distance, needs to be illustrated, and link monitoring device and link switching device are all provided with
It sets in crosspoint, the transmission channel formed in this way is that optical signal transmitter, active link and reserve link and optical signal receive
Device is sequentially connected, and above-mentioned link monitoring device has multiple, also, multiple link monitoring devices are arranged at active link and reserve link
Crosspoint on, in use, optical signal transmitter is for launching outward optical signal, and link monitoring device is for monitoring light letter
Number whether there is frame losing on active link and reserve link, needs exist for being illustrated, when optical signal is in active link
It monitors whether active link frame losing occurs when upper transmission, monitors whether reserve link goes out when optical signal transmits on reserve link
Existing frame losing, later, link switching device are used to be said when the frame losing quantity for monitoring optical signal is more than the threshold value of setting
Bright, the above-mentioned threshold value set is the maximum of frame losing quantity permitted on the basis of guaranteeing optical signal transmission integrality
Value, when frame losing quantity is excessive, link switching device control active link is switched on reserve link, alternatively, control reserve link
It is switched on active link, realizes optical signal along the purpose of another link transmission, later, optical signal receiver is for receiving warp
The optical signal of active link and reserve link transmission, also, the optical signal received is handled, it realizes through the above steps
To the real-time monitoring of transmission link, also, due to being above both provided with link in every section of distance of active link and reserve link
Monitor, by the switching of main/slave link, effectively reduces optical signal and is passing to ensure that the monitoring efficiency to transmission link
Frame losing quantity during defeated.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the connection figure of optical communication wire line protection device provided by the utility model embodiment；
Fig. 2 shows the structure connection figures of the protection system of optical communication line provided by the utility model embodiment.
Icon：1- optical signal transmitter；2- link monitoring device；3- link switching device；4- active link；5- reserve link；
6- optical signal receiver；7- alarm；8- optical communication wire line protection device.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Currently, optic communication is a kind of communication mode using light wave as carrier wave, and compared with other existing communication modes, communication
The advantages that capacity is big, repeater span is long, security performance is good, adaptable, but in the specific implementation process, due to various originals
The case where cause, optical signal also will appear transmission frame losing or delay in optical transmission chain, cause optical receiving end timely and effective
Receive complete transmitting data frame.To sum up, at present about will appear in optical transmission chain transmission frame losing the problem of.
Based on this, the utility model embodiment provides optical communication wire line protection device and system, below by embodiment
It is described.
Embodiment 1
Referring to Fig. 1, the optical communication wire line protection device that the present embodiment proposes is specifically included：Optical signal transmitter 1, link prison
Survey device 2, link switching device 3, active link 4, reserve link 5 and optical signal receiver 6.Setting between above each device is closed
System is：Active link and reserve link are arranged in parallel, also, active link and reserve link intersect at after being separated by pre-determined distance
In crosspoint, since communication line is generally longer, in order to effectively be monitored, just one intersection of setting after being separated by pre-determined distance
Point, in this way, having multiple crosspoints in entire transmission process, above-mentioned link monitoring device and link switching device are arranged at intersection
On point, optical signal transmitter, active link and reserve link and optical signal receiver are sequentially connected, link monitoring device have it is multiple,
Also, multiple link monitoring devices are arranged in the crosspoint of active link and reserve link, that is, are realized in each intersection
The scheme of link monitoring device and link switching device is all set on point.In use process, optical signal transmitter is for launching outward light
Signal, being typically directly connected with optical signal transmitter is active link, and link monitoring device is for monitoring optical signal in primary chain
Whether frame losing is occurred on road and reserve link, and link switching device is used in the frame losing quantity for monitoring optical signal be more than the threshold of setting
It when value, needs to be illustrated, the above-mentioned threshold value set is permitted on the basis of guaranteeing optical signal transmission integrality
The maximum value of frame losing quantity, control active link are switched on reserve link, alternatively, control reserve link is switched to active link
On, frame losing quantity of the optical signal in transmission process can effectively be limited by switching over processing by segmentation, finally, optical signal connects
It receives device and is used to receive the optical signal through active link and reserve link transmission, also, the optical signal received is handled.
In order to effectively be distinguished to active link and reserve link, in the present embodiment, optical signal transmitter with it is primary
Link is connected.Correspondingly, optical signal is transmitted on the active link first, link switching device is by optical signal switching to another
On transmission link (i.e. reserve link).
In addition, optical communication wire line protection device further includes photo-coupler, photo-coupler is connected with link switching device, optical coupling
Device is for the optical signal on active link and reserve link to be isolated.Photo-coupler is also referred to as optoisolator, and abbreviation optocoupler is
Using light as a kind of electric one power conversion device of a light of media transmission electric signal.It turns the electric signal of input terminal using light as medium
It is changed to optical signal, is coupled to output end and is reconverted into electric signal, because of referred to herein as photo-coupler.Due to photo-coupler input, output
Between be mutually isolated, electric signal transmission has the characteristics that one-way, thus has good electrical isolation capabilities and anti-interference ability.Hair
Optical device is frequently with light emitting diode or laser tube；Receiving device often uses photodiode, photistor and optic integrated circuit
Deng.Photo-coupler has good buffer action to input, output electric signal, so, it has become most species, purposes most at present
One of wide photoelectric device.Due in the specific implementation process, it will usually have multipath light signal while be transmitted, therefore, be led to
The setting for crossing photo-coupler can be effectively isolated the optical signal of adjacent chain road, and then improve efficiency of transmission.
In addition, active link and reserve link inevitably will appear failure during transmitting optical signal, in order to effectively supervise
Failure is surveyed and checks, optical communication wire line protection device further includes primary fault monitor, primary fault monitor and active link
It is connected, in use, primary fault monitor is being detected for monitoring whether active link transmission fault occurs
The first switching signal, chain are sent to the upper link switching device being connected with active link after there is transmission fault to active link
Road switch is for being transferred to reserve link for a link switching device on optical signals after receiving the first switching signal.
By above-mentioned processing, it can effectively transmit optical signals on reserve link and carry out after transmission fault occurs in active link
Transmission, easily and effectively.
Likewise, optical communication wire line protection device further includes alternate fault monitor, alternate fault monitor and spare chain
Road is connected, and in use, primary fault monitor is being examined for monitoring whether reserve link transmission fault occurs
Reserve link is measured to occur sending the second switching signal to the upper link switching device being connected with reserve link after transmission fault,
Link switching device is for being transferred to active link for a link switching device on optical signals after receiving the second switching signal
On.By above-mentioned processing, it is enterprising can effectively to transmit optical signals into active link after transmission fault occurs in reserve link
Row transmission, easily and effectively.
Since corresponding administrative staff can come to repair after communication failure occurs in link, and therefore, which protects
Protection unit further includes primary fault recovery monitor, and primary fault recovery monitor is connected with active link, primary fault recovery
Whether the transmission fault that monitor is used to monitor active link restores, also, restores in the transmission fault for detecting active link
Third switching signal is sent to the upper link switching device that is connected with active link afterwards, and link switching device is used to receive the
A link switching device on optical signals is transferred on active link after three switching signals.By above-mentioned processing, can facilitate
Effective realization reusing to the active link after repaired failure, it is convenient and efficient.
In addition, optical communication wire line protection device further includes alternate fault Restoration monitoring device, alternate fault Restoration monitoring device with
Reserve link is connected, and whether the transmission fault that alternate fault Restoration monitoring device is used to monitor reserve link restores, also, is detecting
The 4th switching signal is sent to the upper link switching device being connected with reserve link after to the transmission fault recovery of reserve link,
Link switching device is for being transferred to reserve link for a link switching device on optical signals after receiving the 4th switching signal
On.By above-mentioned processing, can realization reusing to the reserve link after repaired failure easily and effectively, it is convenient fast
It is prompt.
In addition, in the present embodiment, the material of active link is optical fiber.The material of reserve link is also optical fiber.Optical fiber is
Optical fiber is write a Chinese character in simplified form, and is a kind of fiber made of glass or plastics, can be used as the tool of light signal transduction, transmission is former
Reason is ' total reflection of light '.Since light is more much lower than the loss that electricity is conducted in electric wire in the conduction loss of optical fiber, optical fiber quilt
Information transmitting as long range.In multimode fibre, the diameter of core is 50 μm and 62.5 μm two kinds.And single-mode optics fibre core is straight
Diameter is 8 μm~10 μm, and the most commonly used is 9 and 125 μm.One layer of refractive index glass envelope lower than core is surrounded outside core in a fiber
Set, the bulb envelope are commonly called as covering, and covering makes light be maintained at in-core.Outside is one layer of thin plastic wrapper again, that is, is applied
Coating, for protecting covering.Optical fiber is usually bundled into beam, and there is shell protection in outside.In terms of transmission performance, optical fiber bandwidth,
Low, light-weight, strong antijamming capability is lost.Therefore, in the transmission process of optical signal, especially during long distance transmission,
Often select optical fiber as transmission medium.
In conclusion optical communication wire line protection device provided in this embodiment includes：Optical signal transmitter, link monitoring
Device, link switching device, active link, reserve link and optical signal receiver, the connection relationship between above-mentioned each device are：It is main
It is arranged in parallel with link and reserve link, also, active link and reserve link intersect at crosspoint after being separated by pre-determined distance
On, can usually there are multiple crosspoints on a longer transmission link, also, link monitoring device and link switching device are all provided with
It sets in crosspoint, optical signal transmitter, active link and reserve link and optical signal receiver are sequentially connected, link monitoring device
Have multiple, also, multiple link monitoring devices are arranged in the crosspoint of active link and reserve link, in transmission process,
Optical signal transmitter is for launching outward optical signal, and link monitoring device is for monitoring optical signal in active link and reserve link
Whether frame losing is occurred, and link switching device is used to control primary when the frame losing quantity for monitoring optical signal is more than the threshold value of setting
On link switching to reserve link, alternatively, control reserve link is switched on active link, optical signal receiver is for receiving warp
The optical signal of active link and reserve link transmission, also, the optical signal received is handled, pass through above-mentioned link monitoring
The setting of device realizes the real-time monitoring to transmission link, to ensure that the monitoring efficiency to transmission link, and passes through link
The setting of switch effectively realizes the switching of main/slave link, to effectively reduce frame losing number of the optical signal in transmission process
Amount.
Embodiment 2
Referring to fig. 2, present embodiments providing optical communication line protection system includes：The light of alarm 7 and any of the above-described
Communication line protective device 8, alarm is connected with optical communication wire line protection device, in use, alarm is used in optical communication wire
When the transmission duration of line protection device is more than propagation threshold, sound-light alarm is sent out.It needs exist for being illustrated, in light
In the transmission process of signal, phenomena such as will appear transmission delay due to various reasons, excessively prolonged transmission delay will cause light
The transmission fault of signal can be more than in the present embodiment transmission threshold in the transmission duration of optical signal by the setting of alarm
When value, sound-light alarm is sent out, to warn related personnel to check transmission fault etc. in time.
In conclusion optical communication line protection system provided in this embodiment includes：The light of alarm and any of the above-described
Communication line protective device, alarm are connected with optical communication wire line protection device, and in use, alarm is used for logical in light
When believing that the transmission duration of line protective devices is more than propagation threshold, sound-light alarm is sent out, to strengthen to optical communication wire
The monitoring of the efficiency of transmission of line protection device.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can be with reference to the corresponding process in previous embodiment, details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.To those skilled in the art, above-mentioned term can be understood in this reality with concrete condition
With the concrete meaning in novel.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that：It is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. optical communication wire line protection device, which is characterized in that including：Optical signal transmitter, link monitoring device, link switching device,
Active link, reserve link and optical signal receiver；
The active link and the reserve link are arranged in parallel, and, the active link and the reserve link be separated by it is pre-
If intersecting in crosspoint after distance, the link switching device is arranged in the crosspoint, the optical signal transmitter, described
Active link and the reserve link are sequentially connected with the optical signal receiver, the link monitoring device have it is multiple, and, it is multiple
The link monitoring device is arranged in the crosspoint of the active link and the reserve link；
The optical signal transmitter, for launching outward optical signal；
Whether the link monitoring device is lost on the active link and the reserve link for monitoring the optical signal
Frame；
The link switching device, for when the frame losing quantity for monitoring the optical signal is more than the threshold value of setting, described in control
Active link is switched on the reserve link, is switched on the active link alternatively, controlling the reserve link；
The optical signal receiver, for receiving the optical signal through the active link and reserve link transmission, and, docking
The optical signal received is handled.
2. optical communication wire line protection device according to claim 1, which is characterized in that the optical signal transmitter with it is described
Active link is connected.
3. optical communication wire line protection device according to claim 1, which is characterized in that it further include photo-coupler, the light
Coupler is connected with the link switching device；
The photo-coupler, for the optical signal on the active link and the reserve link to be isolated.
4. optical communication wire line protection device according to claim 1, which is characterized in that it further include primary fault monitor,
The primary fault monitor is connected with the active link；
The primary fault monitor, for monitoring whether the active link transmission fault occurs, and, detecting the master
Occur sending the first switching letter to the upper one link switching device being connected with the active link after transmission fault with link
Number；
The link switching device, for after receiving first switching signal by a link on the optical signals
Switch is transferred on the reserve link.
5. optical communication wire line protection device according to claim 1, which is characterized in that it further include alternate fault monitor,
The alternate fault monitor is connected with the reserve link；
The alternate fault monitor, for monitoring whether the reserve link transmission fault occurs, and, it is described standby detecting
Occur sending the second switching letter to the upper one link switching device being connected with the reserve link after transmission fault with link
Number；
The link switching device, for after receiving second switching signal by a link on the optical signals
Switch is transferred on the active link.
6. optical communication wire line protection device according to claim 1, which is characterized in that further include primary fault recovery monitoring
Device, the primary fault recovery monitor are connected with the active link；
Whether the primary fault recovery monitor, the transmission fault for monitoring the active link restore, and, it is detecting
The transmission fault of the active link restore after to the upper one link switching device transmission being connected with the active link the
Three switching signals；
The link switching device, for after receiving the third switching signal by a link on the optical signals
Switch is transferred on the active link.
7. optical communication wire line protection device according to claim 1, which is characterized in that further include alternate fault Restoration monitoring
Device, the alternate fault Restoration monitoring device are connected with the reserve link；
Whether the alternate fault Restoration monitoring device, the transmission fault for monitoring the reserve link restore, and, it is detecting
The transmission fault of the reserve link restore after to the upper one link switching device transmission being connected with the reserve link the
Four switching signals；
The link switching device, for after receiving the 4th switching signal by a link on the optical signals
Switch is transferred on the reserve link.
8. optical communication wire line protection device according to claim 1, which is characterized in that the material of the active link is light
It is fine.
9. optical communication wire line protection device according to claim 1, which is characterized in that the material of the reserve link is light
It is fine.
10. optical communication line protects system, which is characterized in that including：Alarm and such as described in any item light of claim 1-9
Communication line protective device；
The alarm is connected with the optical communication wire line protection device；
The alarm is sent out when being more than propagation threshold for the transmission duration in the optical communication wire line protection device
Sound-light alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820675825.7U CN208174685U (en) | 2018-05-08 | 2018-05-08 | Optical communication wire line protection device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820675825.7U CN208174685U (en) | 2018-05-08 | 2018-05-08 | Optical communication wire line protection device and system |
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| CN208174685U true CN208174685U (en) | 2018-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039697A (en) * | 2021-11-05 | 2022-02-11 | 中国电信股份有限公司 | Wavelength division link protection method and system |
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2018
- 2018-05-08 CN CN201820675825.7U patent/CN208174685U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039697A (en) * | 2021-11-05 | 2022-02-11 | 中国电信股份有限公司 | Wavelength division link protection method and system |
| CN114039697B (en) * | 2021-11-05 | 2024-04-05 | 中国电信股份有限公司 | Method and system for protecting wavelength division link |
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