CN208209956U - Passive automatic light shunting device and its optical fiber telecommunications system - Google Patents
Passive automatic light shunting device and its optical fiber telecommunications system Download PDFInfo
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- CN208209956U CN208209956U CN201820821098.0U CN201820821098U CN208209956U CN 208209956 U CN208209956 U CN 208209956U CN 201820821098 U CN201820821098 U CN 201820821098U CN 208209956 U CN208209956 U CN 208209956U
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Abstract
This application involves a kind of passive automatic light shunting device and optical fiber telecommunications systems, passive automatic light shunting device includes: the first optical splitter and the second optical splitter, first optical splitter connects second optical splitter, the first port of first optical splitter connection intermediate fibres communication equipment, the second port of second optical splitter connection intermediate fibres communication equipment, first optical splitter connects the first optical fiber communication equipment, and the second optical splitter connects the second optical fiber communication equipment.When intermediate optical fiber communication equipment works normally, since the light signal strength by sending after the first optical splitter light-splitting processing is very low, it will not work power equipment and have an impact；When intermediate optical fiber communication equipment power down, it can be by the optical signal after the processing of the first optical splitter as the input signal of the second optical splitter, it transmits optical signal directly between the first optical fiber communication equipment and the second optical fiber communication equipment, avoids the power down of intermediate fibres communication equipment and the normal communication of optical fiber telecommunications system is had an impact.
Description
Technical field
This application involves technical field of optical fiber communication, logical more particularly to a kind of passive automatic light shunting device and its optical fiber
Letter system.
Background technique
With the rapid development of power distribution automation, power distribution automation three remote control system etc. with network service to communication network can
It is required by property also higher and higher.Existing Networks of Fiber Communications is realized in the form of pulling bracelet, when single power distribution room interchanger
It breaks down or when power loss, can realize self-healing by Spanning-Tree Protocol, still, when breaking down or the interchanger quantity of power loss
At two or more, self-healing cannot achieve, so as to cause power distribution automation service disconnection.Also, due to planning construction
Etc. reasons, will lead to part fiber communication network be chain-shaped network, wherein any one nodes break down, can all cause to communicate
It interrupts.
The distribution systems such as traditional switch room, power distribution room are typically set up outdoors, it is easy to are effected by environmental factors
And break down, so as to cause communication disruption.When a failure occurs it, related personnel is needed to repair to scene, maintenance efficiency
It is extremely low.Therefore, traditional optical fiber telecommunications system has the shortcomings that operating reliability is poor.
Utility model content
Based on this, it is necessary to for the problem of traditional optical fiber telecommunications system operating reliability difference, provide a kind of nothing and be originated from
Dynamic light shunting device and its optical fiber telecommunications system.
A kind of passive automatic light shunting device, described device include: the optical signal for receiving the first optical fiber communication equipment and sending
And carry out the first optical splitter that the second optical splitter is sent to after light-splitting processing；It is sent after receiving the first optical splitter light-splitting processing
Optical signal and be sent to the second optical splitter of the second optical fiber communication equipment；First optical splitter connection, second light splitting
Device, the first port of the first optical splitter connection intermediate fibres communication equipment, second optical splitter connect the intermediate light
The second port of fiber communication equipment, first optical splitter connect first optical fiber communication equipment, and second optical splitter connects
Connect second optical fiber communication equipment.
In one embodiment, described device further include: receive the optical signal that the second optical fiber communication equipment is sent and progress
It is sent to the third optical splitter of the 4th optical splitter after light-splitting processing, receives the light letter sent after the third optical splitter light-splitting processing
Number and be sent to the 4th optical splitter of the first optical fiber communication equipment, the third optical splitter connects the 4th optical splitter, described
Third optical splitter connects the second port of the intermediate fibres communication equipment, and it is logical that the 4th optical splitter connects the intermediate fibres
Believe the first port of equipment, the third optical splitter connects second optical fiber communication equipment, and the 4th optical splitter connects institute
State the first optical fiber communication equipment.
In one embodiment, first optical splitter is consistent with the splitting ratio of the third optical splitter, and described second point
Light device is consistent with the splitting ratio of the 4th optical splitter.
In one embodiment, the splitting ratio of first optical splitter and the third optical splitter is 1:10, and described the
The splitting ratio of two optical splitters and the 4th optical splitter is 1:1.
In one embodiment, the splitting ratio of first optical splitter and the third optical splitter is 1:20, and described the
The splitting ratio of two optical splitters and the 4th optical splitter is 1:1.
A kind of optical fiber telecommunications system, the system comprises: passive automatic light shunting devices and three or three sequentially connected
A above optical fiber communication equipment, and three adjacent optical fiber communication equipments are respectively the first optical fiber communication equipment, intermediate fibres
Communication equipment and the second optical fiber communication equipment, the passive automatic light shunting device include: to receive first fiber optic communication to set
Optical signal that preparation is sent simultaneously carries out the first optical splitter that the second optical splitter is sent to after light-splitting processing；Receive first optical splitter
The optical signal that is sent after light-splitting processing and the second optical splitter for being sent to second optical fiber communication equipment；First optical splitter
Connecting second optical splitter, first optical splitter connects the first port of the intermediate fibres communication equipment, and described second
Optical splitter connects the second port of the intermediate fibres communication equipment, and first optical splitter connects first fiber optic communication and sets
Standby, second optical splitter connects second optical fiber communication equipment.
In one embodiment, each optical fiber communication equipment is connected in the form of pulling bracelet.
In one embodiment, each optical fiber communication equipment chain connection.
In one embodiment, the passive automatic light shunting device passes through square clamping joint tail optical fiber or round screw thread end to end
The fine corresponding interface for being located at ODF optical fibre frame with first optical fiber communication equipment is connect, and the passive automatic light shunting device is logical
It crosses square clamping joint tail optical fiber or round thread head tail optical fiber and second optical fiber communication equipment is located at the corresponding interface of ODF optical fibre frame
Connection, the passive automatic light shunting device and intermediate fibres communication equipment pass through square clamping joint tail optical fiber or round screw thread end to end
Fibre connection.
First optical splitter of above-mentioned passive automatic light shunting device and optical fiber telecommunications system, passive automatic light shunting device connects
The first optical fiber communication equipment is connect, the second optical splitter connects the second optical fiber communication equipment, and the first optical splitter connects intermediate fibres
The first port of communication equipment, the second optical splitter connect the second port of intermediate fibres communication equipment；When intermediate fiber optic communication is set
It, can be by first point since the light signal strength by sending after the first optical splitter light-splitting processing is very low when standby normal work
Optical signal after the processing of light device will not work to power equipment and have an impact as noise signal；When intermediate fiber optic communication is set
It, can be by the optical signal after the processing of the first optical splitter as the input signal of the second optical splitter, to make optical fiber when standby power down
The signal of communication system bypasses the intermediate fibres communication equipment of power down, directly in the first optical fiber communication equipment and the second fiber optic communication
It is transmitted between equipment.Above-mentioned passive automatic light shunting device and optical fiber telecommunications system, avoid intermediate fibres communication equipment power down
The normal communication of optical fiber telecommunications system is had an impact, has the advantages that operating reliability is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of passive automatic light shunting device in an embodiment；
Fig. 2 is the structural schematic diagram in another embodiment in passive automatic light shunting device；
Fig. 3 is the interface diagram of passive automatic light shunting device in an embodiment；
Fig. 4 is the structural schematic diagram of optical fiber telecommunications system in an embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to disclosure of this application more saturating
It is thorough comprehensive.
Referring to Fig. 1, a kind of passive automatic light shunting device, comprising: receive the light that the first optical fiber communication equipment 210 is sent
Signal simultaneously carries out the first optical splitter 110 that the second optical splitter 120 is sent to after light-splitting processing；Receive the light splitting of the first optical splitter 110
The optical signal that is sent after processing and the second optical splitter 120 for being sent to the second optical fiber communication equipment 230；First optical splitter 110 connects
The second optical splitter 120 is connect, the first optical splitter 110 connects the first port of intermediate fibres communication equipment 220, the second optical splitter 120
The second port of connection intermediate fibres communication equipment 220, the first optical splitter 110 the first optical fiber communication equipment 210 of connection, second point
Light device 120 connects the second optical fiber communication equipment 230.
Specifically, optical splitter is also known as optical splitter, is a kind of optical fiber tandem with multiple input terminals and multiple output ends
Device is usually used in coupling, branch and the distribution of optical signal.Optical splitter is by incident and exit slit, reflecting mirror and dispersion element group
At.Optical splitter is a kind of passive device, does not need external energy, as long as there is input light.Passive automatic light shunting device packet
The first optical splitter 110 and the second optical splitter 120 are included, is a kind of passive device, does not need external energy at work, therefore, tool
Have the advantages that non-maintaining, at low cost.
One output end of the first optical splitter 110 is connect with an input terminal of the second optical splitter 120, is formed by passive automatic light
Road device, wherein the input terminal of the first optical splitter 110 connects the first optical fiber communication equipment 210, the first optical splitter 110 it is another
The first port of output end connection intermediate fibres communication equipment 220；Another input terminal of second optical splitter 120 connects intermediate fibres
The output end of the second port of communication equipment 220, the second optical splitter 120 connects the second optical fiber communication equipment 230.It should be understood that
It is that first port is to receive optical port at this time, and second port is the port that shines, realizes the first optical fiber communication equipment of optical signals 210
To the transmission of the second optical fiber communication equipment 230.First optical splitter 110 receives the optical signal of the first optical fiber communication equipment 210 output,
By the optical signal output for forming two kinds of different luminous intensities after light-splitting processing, wherein compared with highlight intensity optical signal by the
Another output end of one optical splitter 110 is sent to intermediate fibres communication equipment 220, and the optical signal compared with low light intensity passes through first point
One output end of light device 110 is sent to an input terminal of the second optical splitter 120.Two are formd in passive automatic light shunting device
Route, first route are as follows: when intermediate optical fiber communication equipment 220 works normally, compared with highlight intensity optical signal by the
Another output end of one optical splitter 110 is sent to intermediate fibres communication equipment 220, then passes through intermediate fibres communication equipment 220
Output, is sent to the second optical splitter 120；Article 2 route are as follows: the optical signal compared with low light intensity passes through the one of the first optical splitter 110
Output end is sent to the second optical splitter 120, since the light signal strength on the route is much smaller than the optical signal on first route,
When intermediate optical fiber communication equipment works normally, the optical signal on Article 2 route will not be to the normal work of optical fiber communication equipment
It has an impact, noise signal can be taken as.When intermediate 220 power down of optical fiber communication equipment or when breaking down, first line
Road will be in an off state, at this point, passing through Article 2 route for the first optical fiber communication equipment 210 and the second optical fiber communication equipment
230 connections guarantee that the first optical fiber communication equipment 210 and the second optical fiber communication equipment 230 can work normally, and avoid intermediate fibres logical
Believe 220 power down of equipment or break down and optical fiber telecommunications system is had an impact.
It should be pointed out that due to optical fiber communication equipment optical module receive luminous sensitivity it is often stronger, even across divide
Relatively low light signals after light processing can also be perceived by the optical module of optical fiber communication equipment, to carry out the transmission of optical signal.Light
The dynamic range that the optical module of fiber communication equipment receives light is larger, can receive the relatively low light signals after optical splitter light-splitting processing
Optical signal with after the optical signal superposition of original optical fiber telecommunications system, also can individually receive the light after optical splitter light-splitting processing
Signal.It therefore, can be by the first optical fiber communication equipment 210 in the power down of intermediate fibres communication equipment or in the case where break down
Relatively low light signals after 110 light-splitting processing of the first optical splitter are transferred to the second optical fiber communication equipment 230, thus in skipping
Between optical fiber communication equipment 220, realize that the signal between the first optical fiber communication equipment 210 and the second optical fiber communication equipment 230 transmits,
Realize bypass functionality.When intermediate optical fiber communication equipment 220 works normally, although the same energy of the second optical fiber communication equipment 230
The optical signal after light-splitting processing is enough perceived, still, since light signal strength at this time is weaker, it can be believed as noise
Number, normal communication can't be had an impact.So above-mentioned passive automatic light shunting device also have have a wide range of application it is excellent
Point.It is appreciated that at the first optical fiber communication equipment 210, intermediate fibres communication equipment 220 and the second optical fiber communication equipment 230
When bypass condition, corresponding optical module received optical signal luminous intensity in the minimum receipts optical range of optical module.
It, being capable of automatic identification fiber optic communication by installing corresponding passive automatic light shunting device on optical fiber communication equipment
Power supply state and optical signal output state in system can be realized optical path when power down or failure occur for a certain node device
Instantaneous switching, makes optical signal bypass the node device to break down, is transmitted in the equipment at node device both ends, guarantees light
The communication of fiber communication system is normal, realizes N-X function.The optical fiber telecommunications system that N-X function, that is, N number of apparatus for network node is constituted
In, the X node devices for being equipped with passive automatic light shunting device can realize self-healing by passive automatic light shunting device, protect
Demonstrate,prove the communication stability of optical fiber telecommunications system, wherein the quantity of X is less than or equal to the quantity of N.It is appreciated that by passive automatic light
Road device can be the device independently of intermediate fibres communication equipment, the first optical splitter of automatic light shunting device passive at this time
The outer first end mouth of 110 connection intermediate fibres communication equipments 220, the second optical splitter 120 of passive automatic light shunting device connect
Connect the external second port of intermediate fibres communication equipment 220.In another embodiment, it can also be intermediate fibres communication equipment
220 and passive automatic light shunting device be integrated into the same equipment.
In one embodiment, referring to Fig. 2, passive automatic light shunting device further include: receive the second fiber optic communication and set
Standby 230 optical signals sent simultaneously carry out the third optical splitter 130 that the 4th optical splitter 140 is sent to after light-splitting processing, receive third
The 4th optical splitter 140 that optical splitter divides the optical signal sent after 130 light processings and is sent to the first optical fiber communication equipment 210, the
Three optical splitters 130 connect the 4th optical splitter 140, and third optical splitter 130 connects the second port of intermediate fibres communication equipment 220,
4th optical splitter 140 connects the first port of intermediate fibres communication equipment 220, and third optical splitter 130 connects the second fiber optic communication
Equipment 230, the 4th optical splitter 140 connect the first optical fiber communication equipment 210.
Specifically, in optical fiber telecommunications system, often two-way communication, in one direction, intermediate fibres communication equipments
220 first ports are optical signal receiving port, when carrying out other direction communication, the first end of intermediate fibres communication equipment 220
Mouth becomes optical signal launch port again.One output end of third optical splitter 130 is connect with an input terminal of the 4th optical splitter 140,
Wherein, the input terminal of third optical splitter 130 connects the second optical fiber communication equipment 230, and another output end of third optical splitter 130 connects
Connect the second port of intermediate fibres communication equipment 220；Another input terminal of 4th optical splitter 140 connects intermediate fibres communication equipment
The output end of 220 first port, the 4th optical splitter 140 connects the first optical fiber communication equipment 230.It should be pointed out that at this time
Second port is to receive optical port, and first port is the port that shines, and realizes the 230 to the first light of the second optical fiber communication equipment of optical signals
The transmission of fiber communication equipment 210.Third optical splitter 130 receives the optical signal of the second optical fiber communication equipment 230 output, by light splitting
The optical signal output of two kinds of different luminous intensities is formed after processing, wherein the optical signal compared with highlight intensity passes through third optical splitter
130 another output end is sent to intermediate fibres communication equipment 220, and the optical signal compared with low light intensity passes through third optical splitter 130
An output end be sent to an input terminal of the 4th optical splitter 140.When intermediate optical fiber communication equipment 220 works normally, more by force
The optical signal of luminous intensity is sent to intermediate fibres communication equipment 220 by another output end of third optical splitter 130, then passes through
Intermediate fibres communication equipment 220 exports, and is sent to the 4th optical splitter 140；Optical signal compared with low light intensity passes through third optical splitter
130 output end is sent to the 4th optical splitter 140, due on much smaller than another route of the light signal strength on the route
Optical signal can be the optical signal on the route as noise signal when intermediate optical fiber communication equipment works normally, will not be right
The normal work of optical fiber communication equipment has an impact.When intermediate 220 power down of optical fiber communication equipment or when breaking down, have relatively strong
The route of the optical signal of luminous intensity will be in an off state, at this point, by the route of the optical signal compared with low light intensity by the second light
Fiber communication equipment 230 is connect with the first optical fiber communication equipment 210, guarantees the first optical fiber communication equipment 210 and the second fiber optic communication
Equipment can work normally, and avoid 220 power down of intermediate fibres communication equipment or break down to have an impact optical fiber telecommunications system.
In one embodiment, the first optical splitter 110 is consistent with the splitting ratio of third optical splitter 130, the second optical splitter 120
It is consistent with the splitting ratio of the 4th optical splitter 140.
Specifically, the first optical splitter 110 receives the optical signal of the first optical fiber communication equipment 210 transmitting, and to the light of receiving
After signal carries out light-splitting processing, the second optical fiber communication equipment 230 is sent to through the second optical splitter 120；Third optical splitter 130 receives
Second optical fiber communication equipment 230 transmitting optical signal, and to received optical signal carry out light-splitting processing after through the 4th optical splitter
1440 are sent to the first optical fiber communication equipment 210.In identical Guangxin communication system, the first optical fiber communication equipment 210 and
The optical signal size of two optical fiber communication equipments 230 transmitting is often also consistent, therefore selects consistent first light splitting of splitting ratio
Device 110 and third optical splitter 120 carry out light-splitting processing to the optical signal of same intensity respectively, respectively by identical splitting ratio
Second optical splitter 120 and the 4th optical splitter 140 are sent to corresponding optical fiber communication equipment, ensure that entire optical fiber telecommunications system
Stability.It should be pointed out that in another embodiment, it to the extent permitted by the error, can also be using splitting ratio difference not
The first big optical splitter 110 and third optical splitter 130, the second optical splitter 120 and the 4th optical splitter 140, as long as optical fiber can be made logical
Believe system stable operation.
Further, in one embodiment, the splitting ratio of the first optical splitter 110 and third optical splitter 130 is 1:10,
The splitting ratio of second optical splitter 120 and the 4th optical splitter 140 is 1:1.
Specifically, splitting ratio indicates that the optical power of a certain output end output of optical splitter accounts for the ratio of total Output optical power, the
The splitting ratio of one optical splitter is 1:10, wherein the optical power of the output end output of the first optical splitter 110 and the light function of input terminal
The ratio of rate is 1:10, and the ratio of the optical power of the optical power and input terminal of another output end output of the first optical splitter 110 is
1:1, the second optical splitter 120, third optical splitter 130 and the 4th optical splitter 140 are similar with the first optical splitter 110, repeat no more.The
The splitting ratio of one optical splitter 110 and third optical splitter 130 is 1:10, and the optical signal suitable for optical fiber telecommunications system is weaker or light
The lower situation of the optical module receiving sensitivity of fiber communication equipment.
It is appreciated that in another embodiment, the splitting ratio of the first optical splitter 110 and third optical splitter 130 is 1:
20, the splitting ratio of the second optical splitter 120 and the 4th optical splitter 140 is 1:1.In the present embodiment, the first optical splitter 110 and
The splitting ratio of three optical splitters 130 is higher, relatively strong or optical fiber communication equipment the optical mode of the optical signal suitable for optical fiber telecommunications system
The higher situation of block receiving sensitivity.It is appreciated that the first optical splitter 110 can also be other light splitting with third optical splitter 130
Than, for example 1:15,1:30 etc., specific choice splitting ratio are the first optical splitter 110 and third optical splitter 130 how much, it should root
According under concrete condition, the optical module receiving sensitivity of the light signal strength of optical fiber telecommunications system and optical fiber communication equipment is determined.
In one embodiment, referring to Fig. 3, the appearance of passive automatic light shunting device is as shown in the figure, actual
In use process, as long as the corresponding interface of passive automatic light shunting device is connect with optical fiber communication equipment.Wherein, WL_
The output end of the first optical fiber communication equipment of RX connection 210, the first port of WD_RX connection intermediate fibres communication equipment 220, ED_
The second port of TX connection intermediate fibres communication equipment 220, the input terminal of the second optical fiber communication equipment of EL_RX connection 230, in the middle
Between 220 power down of optical fiber communication equipment or when breaking down, realize first the 210 to the second optical fiber communication equipment of optical fiber communication equipment
230 signal transmission, guarantees that optical fiber telecommunications system works normally.The output end of the second optical fiber communication equipment of EL_RX connection 230,
The second port of ED_RX connection intermediate fibres communication equipment 220, the first end of WD_TX connection intermediate fibres communication equipment 220
Mouthful, the input terminal of the first optical fiber communication equipment of WL_TX connection 210 when intermediate 220 power down of optical fiber communication equipment or breaks down
When, it realizes the signal transmission of second the 230 to the first optical fiber communication equipment of optical fiber communication equipment 210, is guaranteeing optical fiber telecommunications system just
Often work.
Above-mentioned passive automatic light shunting device, the first optical splitter connect the first optical fiber communication equipment, the connection of the second optical splitter
Second optical fiber communication equipment, and the first port of the first optical splitter connection intermediate fibres communication equipment, the connection of the second optical splitter
The second port of intermediate fibres communication equipment；When intermediate optical fiber communication equipment works normally, due to by the first optical splitter point
The light signal strength sent after light processing is very low, can by the optical signal after the processing of the first optical splitter as noise signal,
It will not work power equipment and have an impact；When intermediate optical fiber communication equipment power down, can will the first optical splitter processing after
Optical signal as the second optical splitter input signal, to keep the signal of optical fiber telecommunications system logical around the intermediate fibres of power down
Believe equipment, is directly transmitted between the first optical fiber communication equipment and the second optical fiber communication equipment.Above-mentioned passive automatic light bypass dress
It sets and optical fiber telecommunications system, avoids the power down of intermediate fibres communication equipment and the normal communication of optical fiber telecommunications system is had an impact,
Have the advantages that operating reliability is high.
A kind of optical fiber telecommunications system, please refers to Fig. 1 and Fig. 4, including passive automatic light shunting device 100 and sequentially connected
Three or three or more optical fiber communication equipments, and three adjacent optical fiber communication equipments are respectively the first optical fiber communication equipment
210, intermediate fibres communication equipment 220 and the second optical fiber communication equipment 230, passive automatic light shunting device 100 include: reception
Optical signal that one optical fiber communication equipment 210 is sent simultaneously carries out the first optical splitter that the second optical splitter 120 is sent to after light-splitting processing
110；It receives the optical signal sent after 110 light-splitting processing of the first optical splitter and is sent to the second of the second optical fiber communication equipment 230
Optical splitter 120；First optical splitter 110 connects the second optical splitter 120, and the first optical splitter 110 connects intermediate fibres communication equipment 220
First port, the second optical splitter 120 connects the second port of intermediate fibres communication equipment 220, the first optical splitter 110 connection the
One optical fiber communication equipment 210, the second optical splitter 120 connect the second optical fiber communication equipment 230.
Specifically, an output end of the first optical splitter 110 is connect with an input terminal of the second optical splitter 120, is formed passive
Automatic light shunting device, wherein the input terminal of the first optical splitter 110 connects the first optical fiber communication equipment 210, the first optical splitter
The first port of 110 another output end connection intermediate fibres communication equipment 220；Another input terminal of second optical splitter 120 connects
The second port of intermediate fibres communication equipment 220 is connect, the output end of the second optical splitter 120 connects the second optical fiber communication equipment 230.
First optical splitter 110 receives the optical signal of the first optical fiber communication equipment 210 output, by forming two kinds of differences after light-splitting processing
The optical signal of luminous intensity exports, wherein is sent to compared with the optical signal of highlight intensity by another output end of the first optical splitter 110
Intermediate fibres communication equipment 220, the optical signal compared with low light intensity are sent to second point by an output end of the first optical splitter 110
One input terminal of light device 120.Two lines road, first route are as follows: when intermediate light are formd in passive automatic light shunting device
When fiber communication equipment 220 works normally, it is sent to compared with the optical signal of highlight intensity by another output end of the first optical splitter 110
Then intermediate fibres communication equipment 220 exports by intermediate fibres communication equipment 220, is sent to the second optical splitter 120；Second
Route are as follows: the optical signal compared with low light intensity is sent to the second optical splitter 120 by an output end of the first optical splitter 110, by
Optical signal on much smaller than first route of the light signal strength on the route, when intermediate optical fiber communication equipment works normally
When, the optical signal on Article 2 route will not have an impact the normal work of optical fiber communication equipment, can be taken as noise
Signal.When intermediate 220 power down of optical fiber communication equipment or when breaking down, first route will be in an off state, at this point, passing through
First optical fiber communication equipment 210 is connect by Article 2 route with the second optical fiber communication equipment 230, guarantees the first optical fiber communication equipment
210 and second optical fiber communication equipment 230 can work normally, avoid 220 power down of intermediate fibres communication equipment or break down to light
Fiber communication system has an impact.
In one embodiment, each optical fiber communication equipment is connected in the form of pulling bracelet.Specifically, traditional optical fiber is logical
In letter system, ring dress is often formed between each optical fiber communication equipment in the form of hand-in-hand, at this point, each fiber optic communication is set
Standby to can be used as intermediate fibres communication equipment 220, i.e., each optical fiber communication equipment has upstream fiber communication equipment and downstream light
Fiber communication equipment, at this point, being respectively mounted passive automatic light shunting device 100 on each optical fiber communication equipment.Any one fiber optic communication
When power down or failure occur for equipment, the instantaneous switching of optical path can be realized, so that optical signal is bypassed the fiber optic communication broken down and set
It is standby, it is transmitted between the upstream fiber communication equipment and downstream optical fiber communication equipment of optical fiber communication equipment, guarantees that optical fiber is logical
The communication of letter system is normal, realizes N-X function.
It is appreciated that in another embodiment, each optical fiber communication equipment can also be connected in chain.Specifically, due to rule
It draws the electric room of the not perfect of construction or part to be difficult to send a telegram in reply for a long time, so that there may be chain companies between each optical fiber communication equipment
It connects, at this point, being respectively mounted corresponding passive automatic light shunting device 100 with optical fiber communication equipment other than endpoint device.When certain
When power down or failure occur for one node device, the instantaneous switching of optical path can be realized, optical signal is made to bypass the node to break down
Equipment is transmitted in the equipment at node device both ends, guarantees that the communication of optical fiber telecommunications system is normal, realizes N-X function.
In one embodiment, passive automatic light shunting device 100 passes through square clamping joint tail optical fiber or round screw thread end to end
The corresponding interface that fibre is located at ODF optical fibre frame with the first optical fiber communication equipment 210 is connect, and passive automatic light shunting device 100 passes through
The corresponding interface that square clamping joint tail optical fiber or round thread head tail optical fiber and second optical fiber communication equipment are located at ODF optical fibre frame connects
It connects, passive automatic light shunting device 100 passes through square clamping joint tail optical fiber or round screw thread end to end with intermediate fibres communication equipment 220
Fibre connection.
Specifically, tail optical fiber, which is called, does buttock line, and only there is connector in one end, and the other end is the broken end of an optical cable fibre core,
It is connected by welding with other optical cable fibre cores.The first traditional optical fiber communication equipment 210 by cable connection to ODF optical fibre frame,
The connection with intermediate fibres communication equipment 220 is realized by ODF optical fibre frame；Similarly, the second traditional optical fiber communication equipment 230
By cable connection to ODF optical fibre frame, the connection with intermediate fibres communication equipment 220 is realized by ODF optical fibre frame.It is passive automatic
Light shunting device 100 is connected in ODF optical fibre frame by SC (square clamping joint tail optical fiber) or FC (round thread head tail optical fiber)
The corresponding interface of one optical fiber communication equipment 210 is realized and receives light to the first optical fiber communication equipment 210 or shine；By passive automatic light
The corresponding interface that the second optical fiber communication equipment 230 in ODF optical fibre frame is connected to by SC or FC of road device 100 is realized to
Two optical fiber communication equipments 230 receive light or shine.Passive automatic light shunting device 100 passes through square card with intermediate fibres communication equipment
Connector tail optical fiber or round thread head tail optical fiber are directly connected to, so that passive automatic light shunting device 100 is easier for installation.
It should be pointed out that in one embodiment, passive automatic light shunting device 100 has 8 ports, wherein four ends
Mouth is direct-connected by square clamping joint tail optical fiber or round thread head tail optical fiber and intermediate fibres communication equipment 220 respectively, two receipts light ends
Mouth is connected respectively to the first optical fiber communication equipment 210 and the second optical fiber communication equipment 230, and two luminous ports are connected respectively to the
One optical fiber communication equipment 210 and the second optical fiber communication equipment 230；It is real respectively when intermediate optical fiber communication equipment 220 works normally
Existing first optical fiber communication equipment 210 shines to intermediate fibres communication equipment 220, is then transmit to the second optical fiber communication equipment 230
The optical signal transmission and the second optical fiber communication equipment 230 for receiving light shine to intermediate fibres communication equipment 220, are then transmit to
The optical signal transmission of first optical fiber communication equipment 210 receipts light；It is real respectively when intermediate 220 power down of optical fiber communication equipment or failure
Existing first optical fiber communication equipment 210 shines, and the second optical fiber communication equipment 230 receives the optical signal transmission of light and the second optical fiber leads to
Believe that equipment 230 shines, the first optical fiber communication equipment 210 receives the optical signal transmission of light.It is appreciated that passive automatic light shunting device
100 can also in tail optical fiber in other forms and ODF optical fibre frame the first optical fiber communication equipment 210 corresponding interface or the second optical fiber
The corresponding interface of communication equipment 230 connects or intermediate fibres communication equipment 220 is direct-connected, for example, LC (square clamping joint tail optical fiber, relatively
In the small volume of SC) or PC (microballoon face grinding and polishing tail optical fiber).
First optical splitter of above-mentioned optical fiber telecommunications system, passive automatic light shunting device connects the first optical fiber communication equipment,
Second optical splitter connects the second optical fiber communication equipment, and the first port of the first optical splitter connection intermediate fibres communication equipment,
The second port of second optical splitter connection intermediate fibres communication equipment；When intermediate optical fiber communication equipment works normally, due to warp
Cross the optical signal that the light signal strength sent after the first optical splitter light-splitting processing is very low, after the first optical splitter being handled
As noise signal, it will not work power equipment and have an impact；It, can be by first point when intermediate optical fiber communication equipment power down
Optical signal after the processing of light device as the second optical splitter input signal, to make the signal of optical fiber telecommunications system around power down
Intermediate fibres communication equipment, directly transmitted between the first optical fiber communication equipment and the second optical fiber communication equipment.It is above-mentioned passive
Automatic light shunting device and optical fiber telecommunications system, avoid the power down of intermediate fibres communication equipment to the positive normal open of optical fiber telecommunications system
Letter has an impact, and has the advantages that operating reliability is high.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (9)
1. a kind of passive automatic light shunting device, which is characterized in that described device includes:
It receives the optical signal of the first optical fiber communication equipment transmission and carries out first point that is sent to the second optical splitter after light-splitting processing
Light device；
Receive the optical signal sent after the first optical splitter light-splitting processing and second point that is sent to the second optical fiber communication equipment
Light device；First optical splitter connects second optical splitter, and the of the first optical splitter connection intermediate fibres communication equipment
Single port, second optical splitter connect the second port of the intermediate fibres communication equipment, and first optical splitter connects institute
The first optical fiber communication equipment is stated, second optical splitter connects second optical fiber communication equipment.
2. passive automatic light shunting device according to claim 1, which is characterized in that described device further include:
It receives the optical signal of the second optical fiber communication equipment transmission and carries out the third point for being sent to the 4th optical splitter after light-splitting processing
Light device, the 4th point for receiving the optical signal sent after the third optical splitter light-splitting processing and being sent to the first optical fiber communication equipment
Light device,
The third optical splitter connects the 4th optical splitter, and the third optical splitter connects the intermediate fibres communication equipment
Second port, the 4th optical splitter connect the first port of the intermediate fibres communication equipment, the third optical splitter connection
Second optical fiber communication equipment, the 4th optical splitter connect first optical fiber communication equipment.
3. passive automatic light shunting device according to claim 2, which is characterized in that first optical splitter and described the
The splitting ratio of three optical splitters is consistent, and second optical splitter is consistent with the splitting ratio of the 4th optical splitter.
4. passive automatic light shunting device according to claim 2, which is characterized in that first optical splitter and described the
The splitting ratio of three optical splitters is 1:10, and the splitting ratio of second optical splitter and the 4th optical splitter is 1:1.
5. passive automatic light shunting device according to claim 2, which is characterized in that first optical splitter and described the
The splitting ratio of three optical splitters is 1:20, and the splitting ratio of second optical splitter and the 4th optical splitter is 1:1.
6. a kind of optical fiber telecommunications system, which is characterized in that the system comprises: passive automatic light shunting devices and sequentially connected
Three or three or more optical fiber communication equipments, and three adjacent optical fiber communication equipments be respectively the first optical fiber communication equipment,
Intermediate fibres communication equipment and the second optical fiber communication equipment,
The passive automatic light shunting device includes: to receive the optical signal of the first optical fiber communication equipment transmission and be divided
The first optical splitter of the second optical splitter is sent to after processing；
For receiving the optical signal sent after the first optical splitter light-splitting processing and being sent to second optical fiber communication equipment
Two optical splitters；First optical splitter connects second optical splitter, and first optical splitter connects the intermediate fibres communication
The first port of equipment, second optical splitter connect the second port of the intermediate fibres communication equipment, first light splitting
Device connects first optical fiber communication equipment, and second optical splitter connects second optical fiber communication equipment.
7. optical fiber telecommunications system according to claim 6, which is characterized in that each optical fiber communication equipment is to pull bracelet
Form connection.
8. optical fiber telecommunications system according to claim 6, which is characterized in that each optical fiber communication equipment chain connection.
9. optical fiber telecommunications system according to claim 6, which is characterized in that the passive automatic light shunting device side of passing through
The corresponding interface that type clamping joint tail optical fiber or round thread head tail optical fiber and first optical fiber communication equipment are located at ODF optical fibre frame connects
It connects, the passive automatic light shunting device passes through square clamping joint tail optical fiber or round thread head tail optical fiber and second fiber optic communication
Equipment is located at the corresponding interface connection of ODF optical fibre frame, and the passive automatic light shunting device passes through with intermediate fibres communication equipment
Square clamping joint tail optical fiber or the connection of round thread head tail optical fiber.
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| CN201820821098.0U CN208209956U (en) | 2018-05-29 | 2018-05-29 | Passive automatic light shunting device and its optical fiber telecommunications system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110855348A (en) * | 2019-12-20 | 2020-02-28 | 广州电力通信网络有限公司 | Light bypass system |
-
2018
- 2018-05-29 CN CN201820821098.0U patent/CN208209956U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110855348A (en) * | 2019-12-20 | 2020-02-28 | 广州电力通信网络有限公司 | Light bypass system |
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