CN204442379U - A kind of optical fiber circuit-protecting equipment - Google Patents
A kind of optical fiber circuit-protecting equipment Download PDFInfo
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- CN204442379U CN204442379U CN201520184885.5U CN201520184885U CN204442379U CN 204442379 U CN204442379 U CN 204442379U CN 201520184885 U CN201520184885 U CN 201520184885U CN 204442379 U CN204442379 U CN 204442379U
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims abstract description 64
- 230000003595 spectral effect Effects 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 21
- 238000012423 maintenance Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a kind of optical fiber circuit-protecting equipment, comprise first, second fibre circuit automatic switchover protection device, circuit control module and operating maintenance terminal; First, second fibre circuit automatic switchover protection device include Tx interface for connecting protected equipment optical sender, for connect protected equipment optical receiver Rx interface, for connecting the emission port T1 of primary optical fiber and receiving port R1, for connecting emission port T2 and the receiving port R2 of spare fibre; First, second fibre circuit automatic switchover protection device includes the one 2 × 2 optical switch, the 22 × 2 optical switch, the first spectral module, the second spectral module, the 3rd spectral module, a PIN module, the 2nd PIN module and the 3rd PIN module; One 2 × 2 optical switch, the 22 × 2 optical switch, a PIN module, the 2nd PIN module are all connected with circuit control module communication with the 3rd PIN module, and circuit control module is connected with operating maintenance terminal communication by network management interface.
Description
Technical field
The utility model relates to data communication technology field, particularly relates to a kind of optical fiber circuit-protecting equipment.
Background technology
Single channel by transmission structure reliability, combating a natural disaster property difference, once lightguide cable link damage, the business transmitted will all be interrupted.If cooperation spare line, primary circuit and spare line are formed optical line protection system, form the double route even transmission structure of multirouting by optical line protection system, will greatly improve the reliability of link and combating a natural disaster property.In view of this, some important main lines and high-end big customer adopt redundancy route backup to become a kind of trend.Optical fiber circuit-protecting equipment is the transmission equipment being operated in light signal layer; the feature such as there is complete transparent transmission protected business light signal, safe and reliable, fault recovery is quick, can with lower cost fast assembling one without blocking, highly reliable, safety flexibly, optical communication net that anti-disaster ability is strong.
Point-to-point double route optical line protection system has 1+1 protection and 1:1 to protect two class protected modes, wherein optical fiber circuit-protecting equipment (the OLP of 1+1 protection and dual transmitting and receiving, Optical Line Protection) as shown in Figure 1, Tx interface is for connecting the optical sender of protected equipment, Rx interface is for connecting the optical receiver of protected equipment, T1 interface and T2 interface are transmit port, wherein T1 interface is for connecting primary optical fiber, T2 interface is for connecting spare fibre, R1 interface and Interface R2 are receiving port, wherein R1 interface is for connecting primary optical fiber, Interface R2 is for connecting spare fibre.
At transmitting terminal, the transmitting optical power from protected equipment of Tx interface delivers to T1 and T2 port through the optical branching device 101 of 1 × 2 structure according to certain light splitting ratio (the common 50%:50% of being) point, that is, the transmitting optical power of protected equipment is divided into two, and transmits along primary, spare fibre simultaneously; Receiving terminal detects in real time to R1, R2 two-way luminous power, according to the switch decision condition of luminous power situation and setting, utilizes the optical switch 102 of 1 × 2 structure to select the optical fibre channel be connected with Rx.The protection switch decision logic of this protected mode is simple, and software is easy to realize, and optical line protection system does not need built in light transmitter and optical receiver yet, and equipment cost is lower.But 1+1 protection mode has two major defects:
The first, because the transmitting optical power of protected business light signal is divided into two, OLP equipment can cause intrinsic large insertion loss; If light splitting ratio is 50%:50%, so just bring the intrinsic insertion loss of 3dB, for the light signal of 1550nm wave band, the extra power loss increasing 3dB just means that transmission range may reduce more than ten kilometers, and this is the loss in a kind of performance for protected optical transmission system in fact;
Second; the operation principle of dual transmitting and receiving protected mode causes two of line side pairs of optical fiber in fact to only have a pair for business transferring light signal; although another is to also having light signal in optical fiber in biography; but the terminal of optical fiber is " unsettled "; therefore any business can not be transmitted; just play the effect of standby fiber optical power monitoring, this fiber resource for operator is actual is waste to a certain degree.
Namely 1:1 protection publishes the protected mode received.Under this protected mode, protected service signal only transmits along working optical fibre (primary optical fiber or spare fibre).The optical fiber circuit-protecting equipment at two ends is according to the situation of primary optical fiber and spare fibre, and synchronous selection works in primary optical fiber or be switched to spare fibre.In order to ensure the validity switched, 1:1 protection system should have spare fibre monitoring function, and this just needs in protective device, add optical sender and optical receiver, and transmitting terminal and receiving terminal all adopt the optical switch of 2 × 2 structures.This 1:1 protected mode with spare fibre monitoring function well solves in 1+1 protection mode the problem of the large insertion loss existed design principle, eliminates the intrinsic insertion loss brought due to light splitting.
But in prior art, optical fiber circuit-protecting equipment is still not ideal enough in working optical fibre loss, causes communication quality to decline, requires further improvement.
Utility model content
In order to solve the technical problem existed in background technology, the utility model proposes a kind of optical fiber circuit-protecting equipment, its good reliability, it is strong that communication quality maintains ability.
A kind of optical fiber circuit-protecting equipment that the utility model proposes, comprises the first fibre circuit automatic switchover protection device, the second fibre circuit automatic switchover protection device, circuit control module and operating maintenance terminal;
First fibre circuit automatic switchover protection device and the second fibre circuit automatic switchover protection device include Tx interface for being connected protected equipment optical sender, for connect protected equipment optical receiver Rx interface, for connecting the emission port T1 of primary optical fiber and receiving port R1, for connecting emission port T2 and the receiving port R2 of spare fibre, primary optical fiber is connected with between the emission port T1 of above-mentioned first fibre circuit automatic switchover protection device and the receiving port R1 of the second fibre circuit automatic switchover protection device, spare fibre is connected with between the emission port T2 of the first fibre circuit automatic switchover protection device and the receiving port R2 of the second fibre circuit automatic switchover protection device, primary optical fiber is connected with between the emission port T1 of the second fibre circuit automatic switchover protection device and the receiving port R1 of the first fibre circuit automatic switchover protection device, spare fibre is connected with between the emission port T2 of the second fibre circuit automatic switchover protection device and the receiving port R2 of the first fibre circuit automatic switchover protection device,
First fibre circuit automatic switchover protection device and the second fibre circuit automatic switchover protection device include the one 2 × 2 optical switch, the 22 × 2 optical switch, the first spectral module, the second spectral module, the 3rd spectral module, a PIN module, the 2nd PIN module and the 3rd PIN module, first light inlet of the one 2 × 2 optical switch connects Tx interface, and the first light-emitting window and the second light-emitting window are connected T1 interface and T2 interface respectively, first light inlet and second light inlet of the 22 × 2 optical switch are connected receiving port R1 and receiving port R2 respectively, first light-emitting window connects Rx interface, first spectral module is positioned on the first light inlet of the one 2 × 2 optical switch and the connection line of Tx interface, second spectral module is positioned on the first light inlet of the 22 × 2 optical switch and the connection line of receiving port R1, 3rd spectral module is positioned on the second light inlet of the 22 × 2 optical switch and the connection line of receiving port R2, one PIN module is connected with the first spectral module communication, 2nd PIN module is connected with the second spectral module communication, 3rd PIN module is connected with the 3rd spectral module communication,
One 2 × 2 optical switch, the 22 × 2 optical switch, a PIN module, the 2nd PIN module are all connected with circuit control module communication with the 3rd PIN module, and circuit control module is connected with operating maintenance terminal communication by network management interface.
Preferably, also comprising can the lcd screen panel of display light fiber optical power, and lcd screen panel is positioned at equipment surface.
Preferably, interface optical path states indicator light is also comprised.
Optical fiber circuit-protecting equipment in the utility model; compared with prior art; by the optimization to optical fiber circuit-protecting equipment composition structure; have that the communicating interrupt time is short, maintenance efficiency is high, recover call duration time reliability that is short, transmission network high, can Real-Time Monitoring active and standby optical fiber power, support the far and near process control of whole system, the convenient advantage such as management, maintenance to equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of optical fiber circuit-protecting equipment that the utility model proposes;
Fig. 2 is the schematic diagram of fibre circuit automatic switchover protection device in Fig. 1.
Embodiment
As depicted in figs. 1 and 2, Fig. 1 is the schematic diagram of a kind of optical fiber circuit-protecting equipment that the utility model proposes; Fig. 2 is the schematic diagram of fibre circuit automatic switchover protection device in Fig. 1.
See figures.1.and.2, in one embodiment, a kind of optical fiber circuit-protecting equipment that the utility model proposes, comprises the first fibre circuit automatic switchover protection device, the second fibre circuit automatic switchover protection device, circuit control module and operating maintenance terminal;
First fibre circuit automatic switchover protection device and the second fibre circuit automatic switchover protection device include Tx interface for being connected protected equipment optical sender, for connect protected equipment optical receiver Rx interface, for connecting the emission port T1 of primary optical fiber and receiving port R1, for connecting emission port T2 and the receiving port R2 of spare fibre, primary optical fiber is connected with between the emission port T1 of above-mentioned first fibre circuit automatic switchover protection device and the receiving port R1 of the second fibre circuit automatic switchover protection device, spare fibre is connected with between the emission port T2 of the first fibre circuit automatic switchover protection device and the receiving port R2 of the second fibre circuit automatic switchover protection device, primary optical fiber is connected with between the emission port T1 of the second fibre circuit automatic switchover protection device and the receiving port R1 of the first fibre circuit automatic switchover protection device, spare fibre is connected with between the emission port T2 of the second fibre circuit automatic switchover protection device and the receiving port R2 of the first fibre circuit automatic switchover protection device,
First fibre circuit automatic switchover protection device and the second fibre circuit automatic switchover protection device include the one 2 × 2 optical switch, the 22 × 2 optical switch, the first spectral module, the second spectral module, the 3rd spectral module, a PIN module, the 2nd PIN module and the 3rd PIN module, first light inlet of the one 2 × 2 optical switch connects Tx interface, and the first light-emitting window and the second light-emitting window are connected T1 interface and T2 interface respectively, first light inlet and second light inlet of the 22 × 2 optical switch are connected receiving port R1 and receiving port R2 respectively, first light-emitting window connects Rx interface, first spectral module is positioned on the first light inlet of the one 2 × 2 optical switch and the connection line of Tx interface, second spectral module is positioned on the first light inlet of the 22 × 2 optical switch and the connection line of receiving port R1, 3rd spectral module is positioned on the second light inlet of the 22 × 2 optical switch and the connection line of receiving port R2, one PIN module is connected with the first spectral module communication, 2nd PIN module is connected with the second spectral module communication, 3rd PIN module is connected with the 3rd spectral module communication,
One 2 × 2 optical switch, the 22 × 2 optical switch, a PIN module, the 2nd PIN module are all connected with circuit control module communication with the 3rd PIN module, and circuit control module is connected with operating maintenance terminal communication by network management interface;
In order to improve the degree of understanding to transmission situation, also comprising can the lcd screen panel of display light fiber optical power and interface optical path states indicator light, and lcd screen panel is positioned at equipment surface.
Above-mentioned optical fiber circuit-protecting equipment; compared with prior art; by the optimization to optical fiber circuit-protecting equipment composition structure; have that the communicating interrupt time is short, maintenance efficiency is high, recover call duration time reliability that is short, transmission network high, can Real-Time Monitoring active and standby optical fiber power, support the far and near process control of whole system, the convenient advantage such as management, maintenance to equipment.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.
Claims (3)
1. an optical fiber circuit-protecting equipment, is characterized in that, comprises the first fibre circuit automatic switchover protection device, the second fibre circuit automatic switchover protection device, circuit control module and operating maintenance terminal;
First fibre circuit automatic switchover protection device and the second fibre circuit automatic switchover protection device include Tx interface for being connected protected equipment optical sender, for connect protected equipment optical receiver Rx interface, for connecting the emission port T1 of primary optical fiber and receiving port R1, for connecting emission port T2 and the receiving port R2 of spare fibre, primary optical fiber is connected with between the emission port T1 of above-mentioned first fibre circuit automatic switchover protection device and the receiving port R1 of the second fibre circuit automatic switchover protection device, spare fibre is connected with between the emission port T2 of the first fibre circuit automatic switchover protection device and the receiving port R2 of the second fibre circuit automatic switchover protection device, primary optical fiber is connected with between the emission port T1 of the second fibre circuit automatic switchover protection device and the receiving port R1 of the first fibre circuit automatic switchover protection device, spare fibre is connected with between the emission port T2 of the second fibre circuit automatic switchover protection device and the receiving port R2 of the first fibre circuit automatic switchover protection device,
First fibre circuit automatic switchover protection device and the second fibre circuit automatic switchover protection device include the one 2 × 2 optical switch, the 22 × 2 optical switch, the first spectral module, the second spectral module, the 3rd spectral module, a PIN module, the 2nd PIN module and the 3rd PIN module, first light inlet of the one 2 × 2 optical switch connects Tx interface, and the first light-emitting window and the second light-emitting window are connected T1 interface and T2 interface respectively, first light inlet and second light inlet of the 22 × 2 optical switch are connected receiving port R1 and receiving port R2 respectively, first light-emitting window connects Rx interface, first spectral module is positioned on the first light inlet of the one 2 × 2 optical switch and the connection line of Tx interface, second spectral module is positioned on the first light inlet of the 22 × 2 optical switch and the connection line of receiving port R1, 3rd spectral module is positioned on the second light inlet of the 22 × 2 optical switch and the connection line of receiving port R2, one PIN module is connected with the first spectral module communication, 2nd PIN module is connected with the second spectral module communication, 3rd PIN module is connected with the 3rd spectral module communication,
One 2 × 2 optical switch, the 22 × 2 optical switch, a PIN module, the 2nd PIN module are all connected with circuit control module communication with the 3rd PIN module, and circuit control module is connected with operating maintenance terminal communication by network management interface.
2. optical fiber circuit-protecting equipment according to claim 1, is characterized in that, also comprising can the lcd screen panel of display light fiber optical power, and lcd screen panel is positioned at equipment surface.
3. optical fiber circuit-protecting equipment according to claim 2, is characterized in that, also comprises interface optical path states indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184885.5U CN204442379U (en) | 2015-03-30 | 2015-03-30 | A kind of optical fiber circuit-protecting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184885.5U CN204442379U (en) | 2015-03-30 | 2015-03-30 | A kind of optical fiber circuit-protecting equipment |
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| CN204442379U true CN204442379U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184885.5U Expired - Fee Related CN204442379U (en) | 2015-03-30 | 2015-03-30 | A kind of optical fiber circuit-protecting equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227453A (en) * | 2015-09-14 | 2016-01-06 | 中国联合网络通信集团有限公司 | Message forwarding method and device |
| CN107465450A (en) * | 2017-09-21 | 2017-12-12 | 成都中通嘉业科技发展有限公司 | The switching of transmission services and protection device and control method during a kind of fiber failure |
| CN107645332A (en) * | 2017-09-14 | 2018-01-30 | 国网山东省电力公司信息通信公司 | Circuit relay protection service channel and its method of work in a kind of power telecom network |
-
2015
- 2015-03-30 CN CN201520184885.5U patent/CN204442379U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227453A (en) * | 2015-09-14 | 2016-01-06 | 中国联合网络通信集团有限公司 | Message forwarding method and device |
| CN107645332A (en) * | 2017-09-14 | 2018-01-30 | 国网山东省电力公司信息通信公司 | Circuit relay protection service channel and its method of work in a kind of power telecom network |
| CN107645332B (en) * | 2017-09-14 | 2020-04-03 | 国网山东省电力公司信息通信公司 | Circuit relay protection service channel in power communication network and working method thereof |
| CN107465450A (en) * | 2017-09-21 | 2017-12-12 | 成都中通嘉业科技发展有限公司 | The switching of transmission services and protection device and control method during a kind of fiber failure |
| CN107465450B (en) * | 2017-09-21 | 2020-08-04 | 成都中通嘉业科技发展有限公司 | Switching and protecting device and control method for transmission service during optical fiber fault |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20210330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |