CN201690444U - Optical fiber bypass protecting device - Google Patents
Optical fiber bypass protecting device Download PDFInfo
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- CN201690444U CN201690444U CN2010201923815U CN201020192381U CN201690444U CN 201690444 U CN201690444 U CN 201690444U CN 2010201923815 U CN2010201923815 U CN 2010201923815U CN 201020192381 U CN201020192381 U CN 201020192381U CN 201690444 U CN201690444 U CN 201690444U
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Abstract
The utility model discloses an optical fiber bypass protecting device which comprises an East-Rx, an East-Tx, a West-Rx, a West-Tx, an ADM-R1, an ADM-R2, an ADM-T1, an ADM-T2, a first optical switch and a second optical switch, wherein the West-Rx is communicated with the ADM-T1 and the East-Tx is communicated with the ADM-R1 under a first work status, the West-Rx is communicated with the East-Tx under a second work status, the West-Tx is communicated with the ADM-R2 and the East-Rx is communicated with ADM-T2 under a first work status, and the East-Rx is communicated with the East-Tx under the second work status. The utility model provides a power module which is used for driving the switching of the status of the optical switches and driving the power supply voltage, and the power module is connected with an electricity balancing signal of the optical switches. The optical fiber bypass protecting device can avoid the paralysis of the whole net caused by the failure of single-node equipment.
Description
Technical field
The utility model relates to the bypass protection technology, especially, relates to a kind of optical bypass protective device.
Background technology
Development along with communication network, communication equipment is also more and more in the application of Access Network, a lot of communication equipments are set at different places according to the demand of application scenarios, for example, be arranged on the outdoor peg or in the telecommunication distributing box, be arranged in the corridor or unattended machine room in, perhaps also may be applied to some remote districts, and in different application scenarioss, can not expect the influence of situation owing to may be subjected to artificial or natural cause etc., parts such as the power supply in the communication equipment break down, thereby cause certain node device in the communication network to break down, owing to can't guarantee can in time provide favorable protection and maintenance for the node device that breaks down in the present application scenarios, this will influence the unimpeded of whole communication line again.
In present Networks of Fiber Communications, chain net and ring-like net are topological structures relatively commonly used, and when adopting the above topology structure; for Networks of Fiber Communications without any protection; any one node device breaks down in the network, all might cause whole net paralysis, specifically:
In the actual fiber communication network, the chain topological structure is the point-to-multipoint communication of a local side to a plurality of users, and is this relatively simple for structure, and the optical fiber utilance is higher.But in chain-shaped network, when a node device breaks down in the Networks of Fiber Communications, can cause all node devices thereafter all can't work.Typical chain Networks of Fiber Communications topology as shown in Figure 1, if add-drop multiplexer (Add/DropMultiplexer:ADM) 1 fault, then all the other ADM nodes all can't communicate with terminating multiplexer (TerminalMultiplexer:TM).
In ring topology, data are transmitted between each node of loop along a direction, and information passes to another node from a node.All link to each other owing to each end subscriber in this structure with two adjacent end subscribers, and information flow flows along fixed-direction in net, two node devices only have a road, and information source is passed each node device serially in loop, and loop seals, at this moment, if a node device breaks down, ring type structure will become chain structure, and other node device still can proper communication, but when a plurality of node devices break down, then can cause the whole network paralysis.In the typical ring-like Networks of Fiber Communications topology as shown in Figure 2, when a plurality of node devices break down in the network, then can't guarantee proper communication, as in the network when the ADM1 fault, all the other 5 node devices still can operate as normal, and when ADM1 and ADM3 fault, then ADM2 can't with other node device proper communication.
Therefore, in the Networks of Fiber Communications topological structure, when one or more node breaks down, how to realize that the stable operation of whole network has become problem demanding prompt solution.
The utility model content
The technical problems to be solved in the utility model provides a kind of optical bypass protective device, its timely bypass can be guaranteed that the communication of overall optical communication network is smooth and easy when making certain node device in the optical communication network break down.
For solving the problems of the technologies described above, the utility model provides a kind of optical bypass protective device, and it is provided with: east, line side, west be to receiving port and transmit port, and
The east that is connected with output with the input of the protected node device of needs, west are to local reception port and local transmission interface;
First optical switch, make its set west, line side be communicated with and local west is communicated with to receiving port (ADM-R1) and line side east orientation transmit port (East-Tx) to transmit port (ADM-T1) in first operating state, make the west, line side to receiving port (West-Rx) and line side east orientation transmit port (East-Tx) connection in second operating state to receiving port (West-Rx) and local west;
Second optical switch, make the west, line side be communicated with and make line side east orientation receiving port (East-Rx) and local east orientation transmit port (ADM-T2) connection simultaneously in first operating state, line side east orientation receiving port (East-Rx) and west, line side are communicated with to transmit port (West-Tx) in second operating state to transmit port (West-Tx) and local east orientation receiving port (ADM-R2);
The power module that drives the driving power voltage that first optical switch and second optical switch switch between its first operating state and second operating state is provided, and described power module is connected with the equal signal of telecommunication of second optical switch with described first optical switch.
Preferably, described first optical switch is the non-locking formula optical switch of 2*2.
Preferably, described second optical switch is the non-locking formula optical switch of 2*2.
Preferably, described optical bypass protective device also comprises: indicate the operating state indicating module of described optical bypass protective device work at present state, described operating state indicating module is connected with described first optical switch and the second optical switch signal of telecommunication.
Preferably, described power module comprise further: control provides the power switch unit of the outside input on/off of described driving power voltage.
More preferably, described power module comprises further: outside input supply voltage is converted to the power conversion unit that drives the driving power voltage that first optical switch and second optical switch switch, and described power conversion unit is connected on after the described power switch unit.
In addition, described power module comprises further: to the voltage regulation unit that the driving power voltage that drives first optical switch and second optical switch carries out voltage stabilizing, described voltage regulation unit is connected on opening of described power conversion unit.
In addition; described power module comprises further: provide the power protection unit of specific protection to driving driving power that first optical switch and the second optical switch operating state switch, described power protection unit is arranged between described power conversion unit and the described voltage regulation unit.
Preferably, described power module comprises further: to the voltage regulation unit that the driving power voltage that drives first optical switch and second optical switch carries out voltage stabilizing, described voltage regulation unit is connected on after the described power switch unit.
Preferably, described power module comprises further: provide the power protection unit of specific protection to driving driving power that first optical switch and the second optical switch operating state switch, described power protection units in series is after described power switch unit.
Compared with prior art, the utlity model has following remarkable advantage:
(1) during protected node device two ends, the whole network that can avoid effectively causing owing to the individual node device fails is paralysed in Networks of Fiber Communications in this device cross-over connection, thereby has improved the robustness and the reliability of optical communication network;
(2) when needs are safeguarded local device and changed, utilize this device, can not influence the proper communication of miscellaneous equipment in the network its bypass;
(3) this device can be realized by hardware fully, and external echo speed is fast, and reliability is higher;
(4) in this device, described first optical switch and second optical switch can adopt the optical switch of non-locking formula, so volume is less, applying flexible; In addition, this optical bypass protective device also can be used as a bypass protection functional module and directly is integrated in the communication equipment, is convenient to more thus install.
Description of drawings
Fig. 1 is a kind of typical chain communication network topology structure chart;
Fig. 2 is a kind of typical ring-like communication network topology structure chart;
Fundamental diagram when Fig. 3 is in normal operating conditions for optical bypass protective device among the utility model embodiment;
Fundamental diagram when Fig. 4 is in bypass condition for optical bypass protective device among the utility model embodiment;
Fig. 5 is the principle schematic of a kind of optical bypass protective device of the utility model embodiment.
Embodiment
The utility model is based on following mentality of designing: a kind of optical bypass protective device that can be connected across between the input and output side that needs protected node device is provided; when certain node device in the Networks of Fiber Communications breaks down; described optical bypass protective device can be pass by its bypass, makes that communication is smooth and easy between the upstream equipment of protected node device and the upstream device.The realization principle of said process is as shown in Figure 3 and Figure 4:
Wherein, illustrated among Fig. 3: when the ADM operate as normal, the optical bypass protective device is in normal operating conditions, realizes the bridge joint of circuit optical fiber and ADM; And illustrated among Fig. 4: when unusual (in the diagram, being externally fed power supply power fault) appearred in ADM, the optical bypass protective device was connected disconnection with optical fiber between the ADM,, was in the bypass operating state at this moment that is, and with the direct bridge joint of East and West direction optical fiber together.
Below in conjunction with the drawings and specific embodiments the utility model is done to introduce further, but not as to qualification of the present utility model.
With reference to shown in Figure 5, be a kind of principle schematic of optical bypass protective device.As can be seen from the figure: described bypass protector has four circuit Guang Kou and four this flash of light preceding an earthquake mouths, wherein, circuit light mouth is: West-Rx (west, line side is to receiving port), West-Tx (west, line side is to transmit port), East-Rx (line side east orientation receiving port) and East-Tx (line side east orientation transmit port); This flash of light preceding an earthquake mouth is: ADM-R1 (local west is to receiving port), ADM-T1 (local west is to transmit port), ADM-R2 (local east orientation receiving port) and ADM-T2 (local east orientation transmit port).Described optical bypass protective device comprises: first optical switch, second optical switch, power module and operating state indicating module, wherein:
Described first optical switch is the non-locking formula optical switch of 2*2, it is communicated with West-Rx and ADM-T1 and ADM-R1 and East-Tx is communicated with in first operating state (among the figure shown in the dotted arrow), in second operating state (among the figure shown in the solid arrow) West-Rx and East-Tx is communicated with;
Described second optical switch is the non-locking formula optical switch of 2*2, it is communicated with West-Tx and ADM-T2 and East-Rx and ADM-T2 is communicated with in first operating state (among the figure shown in the dotted arrow), in second operating state (among the figure shown in the solid arrow) East-Rx and West-Tx is communicated with;
Described power module all is connected with described first optical switch and described second optical switch, the driving power that is used to both to provide operating state to switch;
Described operating state indicating module, be connected with described first optical switch and the equal signal of telecommunication of described second optical switch, be used to show that the work at present state of described optical bypass protective device is in bypass condition or normal operating conditions, the indication of described operating state preferably can select for use the state of LED to indicate, that is, described operating state indicating module can comprise the LED indicating circuit;
In above-mentioned optical bypass protective device; as shown in Figure 5; further, described power module can comprise according to actual conditions: in the power switch unit that can be connected in series successively, power conversion unit, power protection unit and the filter unit at least one, wherein:
Described power switch unit, be used to control the break-make between described optical bypass protective device and the outside input power supply, when on off operating mode changes between described optical bypass protective device and the outside input power supply, described first optical switch and second optical switch ability switch operating state;
Described power conversion unit is used for outside input supply voltage is converted to the driving power voltage that drives first optical switch and the switching of the second optical switch operating state, for example, and 5V; Make that the scope of outside input supply voltage can be wider after described power conversion unit is set, and need not consistent with the driving power voltage of described first optical switch and the switching of the second optical switch operating state;
Described power protection unit is used for providing protections such as lightning protection, anti-overflow and/or anti-overvoltage to the driving power that drives the switching of first optical switch and the second optical switch operating state, thereby satisfies the application demand of some adverse circumstances; Described lightning protection, anti-overflow, let slip and press protection to realize by lightning protection circuit of the prior art, current foldback circuit, overvoltage crowbar or corresponding elements combination;
Described filter unit is used for the driving power voltage of supplying with first optical switch and second optical switch is carried out voltage stabilizing, thereby guarantees that described first optical switch and second optical switch work more reliably, avoids the generation of mistake change action.
Continuation is with reference to Fig. 3, Fig. 4 and Fig. 5, and the course of work of described optical bypass protective device is as follows:
Described optical bypass protective device is arranged between the input and output of the node device that needs protection; that is: make the upstream equipment of the described node device that needs protection and upstream device form a path with protected node device bypass by described optical bypass protective device; at this moment; the West-Rx of described optical bypass protective device; East-Tx; West-Tx and East-Rx port are eastern accordingly with fibre circuit respectively; the west connects to RTP, ADM-R1; ADM-T1; ADM-R2 and ADM-T2 port are eastern accordingly with ADM respectively; the west connects to RTP.
When ADM is in the abnormal work state, promptly, when this ADM need be by bypass, first optical switch all is in its first corresponding operating state with second optical switch in the described optical bypass protective device, make two of its West-Rx and East-Tx connect port outward and be communicated with, two of East-Rx and West-Tx connect port outward and are communicated with; At this moment, realized east, west direct bridge joint to optical fiber;
And when ADM is in normal operating conditions, promptly, when this ADM does not need by bypass, first optical switch all is in its second corresponding operating state with second optical switch in the described optical bypass protective device, make two of its West-Rx and ADM-T1 connect port, ADM-R1 and two of East-Tx outward and connect port, West-Tx and two of ADM-R2 outward and connect port and East-Rx and two of ADM-T2 outward and connect port outward and all be communicated with, this moment, ADM can be merged in the Networks of Fiber Communications;
In above-mentioned optical bypass protective device, the switching of first optical switch and the second optical switch operating state is to supply with suitable driving voltage by external power source to it to realize that this is a prior art, does not give unnecessary details herein; In illustrated the foregoing description; the outside input power supply of the working power of ADM and described optical bypass protective device is same power supply; at this moment; when described power supply breaks down; can judge that the ADM as node device breaks down; utilize the variation of supply voltage, the operating state that directly drives first optical switch and second optical switch is switched.In addition; use under the situation of same power supply at described optical bypass protective device and ADM; when needs are changed or are safeguarded local node device A DM, can close the outside method of importing power supply by cut-out and open the optical bypass defencive function, can not influence other service node thus.
As seen from last, described optical bypass protective device has following advantage:
(1) during protected node device two ends, the whole network that can avoid effectively causing owing to the individual node device fails is paralysed in Networks of Fiber Communications in this device cross-over connection, thereby has improved the robustness and the reliability of optical communication network;
(2) when needs are safeguarded local device and changed, utilize this device, can not influence the proper communication of miscellaneous equipment in the network its bypass;
(3) this device can be realized by hardware fully, and external echo speed is fast, and reliability is higher;
(4) in this device, described first optical switch and second optical switch can adopt the optical switch of non-locking formula, so volume is less, applying flexible; In addition, this optical bypass protective device also can be used as a bypass protection functional module and directly is integrated in the communication equipment, is convenient to more thus install.
Certainly; in other embodiments; also may be that the working power of ADM and the outside input power supply of described optical bypass protective device are not same power supplys; can add a monitoring unit (not shown) this moment; it is judging ADM occurs whether connecting the operating state switching that outside input power supply directly drives first optical switch and second optical switch by controlling described power module when unusual.Its course of work and principle and above narration are similar, do not repeat them here.
What need explanation a bit is; in the above-described embodiment; needing protected node device in the Networks of Fiber Communications all is example with ADM; but this only is illustrative and not restrictive; the optical bypass protective device that is proposed among the utility model embodiment also is applicable to: in Networks of Fiber Communications, other communication equipments are as the situation of the protected node device of needs.
It is to be further understood that; concerning the those of ordinary skill in field, the utility model technology place; can be equal to change or replacement accordingly according to the technical solution of the utility model and design thereof; and all these changes or replacement all should belong to the protection range of the utility model claims.
Claims (10)
1. optical bypass protective device, be provided with: east, line side, west is characterized in that to receiving port and transmit port described optical bypass protective device also is provided with:
The east that is connected with output with the input of the protected node device of needs, west are to local reception port and local transmit port;
First optical switch, make its set west, line side be communicated with and local west is communicated with to receiving port (ADM-R1) and line side east orientation transmit port (East-Tx) to transmit port (ADM-T1) in first operating state, make the west, line side to receiving port (West-Rx) and line side east orientation transmit port (East-Tx) connection in second operating state to receiving port (West-Rx) and local west;
Second optical switch, make the west, line side be communicated with and make line side east orientation receiving port (East-Rx) and local east orientation transmit port (ADM-T2) connection simultaneously in first operating state, line side east orientation receiving port (East-Rx) and west, line side are communicated with to transmit port (West-Tx) in second operating state to transmit port (West-Tx) and local east orientation receiving port (ADM-R2);
The power module that drives the driving power voltage that first optical switch and second optical switch switch between its first operating state and second operating state is provided, and described power module is connected with the equal signal of telecommunication of second optical switch with described first optical switch.
2. optical bypass protective device as claimed in claim 1 is characterized in that, described first optical switch is non-locking-type 2*2 optical switch.
3. optical bypass protective device as claimed in claim 1 or 2 is characterized in that, described second optical switch is non-locking-type 2*2 optical switch.
4. optical bypass protective device as claimed in claim 1; it is characterized in that; described optical bypass protective device also comprises: indicate the operating state indicating module of described optical bypass protective device work at present state, described operating state indicating module is connected with described first optical switch and the second optical switch signal of telecommunication.
5. optical bypass protective device as claimed in claim 1 is characterized in that, described power module comprises further: control provides the outside of described driving power voltage to import the power switch unit of break-make between the power supply.
6. optical bypass protective device as claimed in claim 5; it is characterized in that; described power module comprises further: outside input supply voltage is converted to the power conversion unit that drives the driving power voltage that first optical switch and second optical switch switch, and described power conversion unit is connected on after the described power switch unit.
7. optical bypass protective device as claimed in claim 6; it is characterized in that; described power module comprises further: to the voltage regulation unit that the driving power voltage that drives first optical switch and second optical switch carries out voltage stabilizing, described voltage regulation unit is connected on after the described power conversion unit.
8. optical bypass protective device as claimed in claim 7; it is characterized in that; described power module comprises further: provide the power protection unit of specific protection to driving driving power that first optical switch and the second optical switch operating state switch, described power protection unit is arranged between described power conversion unit and the described voltage regulation unit.
9. optical bypass protective device as claimed in claim 5; it is characterized in that; described power module comprises further: to the voltage regulation unit that the driving power voltage that drives first optical switch and second optical switch carries out voltage stabilizing, described voltage regulation unit is connected on after the described power switch unit.
10. optical bypass protective device as claimed in claim 5; it is characterized in that; described power module comprises further: provide the power protection unit of specific protection to driving driving power that first optical switch and the second optical switch operating state switch, described power protection units in series is after described power switch unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201923815U CN201690444U (en) | 2010-05-17 | 2010-05-17 | Optical fiber bypass protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201923815U CN201690444U (en) | 2010-05-17 | 2010-05-17 | Optical fiber bypass protecting device |
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| CN201690444U true CN201690444U (en) | 2010-12-29 |
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| CN2010201923815U Expired - Lifetime CN201690444U (en) | 2010-05-17 | 2010-05-17 | Optical fiber bypass protecting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739493A (en) * | 2012-05-30 | 2012-10-17 | 浙江宇视科技有限公司 | Looped network node for protecting redundancy of looped network |
| CN103516422A (en) * | 2013-10-29 | 2014-01-15 | 江苏威拓英立通信科技有限公司 | 10G optical line protection system and 40G/100G optical line protection system |
| CN105978620A (en) * | 2016-05-30 | 2016-09-28 | 南京中新赛克科技有限责任公司 | Protection device and protection method for optical signal transmission line |
| CN106130623A (en) * | 2016-07-23 | 2016-11-16 | 上海白虹软件科技股份有限公司 | A kind of bypass protector based on EPON network |
| CN113131998A (en) * | 2019-12-30 | 2021-07-16 | 中核控制系统工程有限公司 | Optical switching matrix device of security level multi-node communication network |
-
2010
- 2010-05-17 CN CN2010201923815U patent/CN201690444U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739493A (en) * | 2012-05-30 | 2012-10-17 | 浙江宇视科技有限公司 | Looped network node for protecting redundancy of looped network |
| CN102739493B (en) * | 2012-05-30 | 2018-03-06 | 浙江宇视科技有限公司 | A kind of looped network node for protecting looped network redundancy |
| CN103516422A (en) * | 2013-10-29 | 2014-01-15 | 江苏威拓英立通信科技有限公司 | 10G optical line protection system and 40G/100G optical line protection system |
| CN105978620A (en) * | 2016-05-30 | 2016-09-28 | 南京中新赛克科技有限责任公司 | Protection device and protection method for optical signal transmission line |
| CN106130623A (en) * | 2016-07-23 | 2016-11-16 | 上海白虹软件科技股份有限公司 | A kind of bypass protector based on EPON network |
| CN106130623B (en) * | 2016-07-23 | 2019-06-04 | 上海白虹软件科技股份有限公司 | A kind of bypass protector based on EPON network |
| CN113131998A (en) * | 2019-12-30 | 2021-07-16 | 中核控制系统工程有限公司 | Optical switching matrix device of security level multi-node communication network |
| CN113131998B (en) * | 2019-12-30 | 2022-10-21 | 中核控制系统工程有限公司 | Optical switching matrix device of security level multi-node communication network |
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Granted publication date: 20101229 |
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