CN1494250A - Full optical fiber network two fiber bidirectional loop channel shared protective device - Google Patents
Full optical fiber network two fiber bidirectional loop channel shared protective device Download PDFInfo
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- CN1494250A CN1494250A CNA021450803A CN02145080A CN1494250A CN 1494250 A CN1494250 A CN 1494250A CN A021450803 A CNA021450803 A CN A021450803A CN 02145080 A CN02145080 A CN 02145080A CN 1494250 A CN1494250 A CN 1494250A
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Abstract
Optical crossing part X, optical selector S and optical distributor D, or three optical crossing parts constitute one (or two) protective device. Optical selector S is connected to local lower route and input of working channel. Optical distributor D is connected to local upper route and output of working channel. Optical crossing part X is connected to optical selector S, optical distributor D, output of protective channel, and input of protective channel respectively. The invention possesses features: a small quantity of part X, selector S and distributor D realize channels shared protection for two one-way traffics within one node; two same devices realize channels shared protection for two two-way traffics within one node; simple structure, reliable transmision performance, good effect. Thus, it is widely applicable and has notable social benefit and economic benefit.
Description
Technical field
The invention belongs to the optical-fibre communications class, relate in particular to the all-optical network protective device of wavelength-division multiplex technique.
Background technology
At present, the protection of Optical synchronization digital transmission network in the optical-fibre communications (SDH) is perfect, and the protection of all-optical network develops.
The path protection technology of known optical-fiber network two-fibre two-way ring has only the protection in 1: 1 of passage 1+1 protection and passage at present, and they all are privacy protections, promptly can only protect a business on the service aisle with a protection passage.Up to the present, also do not have the device and the technology of channels share protection, thereby can not adapt to the needs of the development and the protection of the Optical synchronization digital transmission network in the optical-fibre communications art.
Summary of the invention
The purpose of this invention is to provide a kind of all-optical network two-fibre two-way ring channels share protective device, solve an above-mentioned difficult problem, to satisfy many-sided needs such as development of channels share protection and adaptation optical-fibre communications art.
The object of the present invention is achieved like this:
1, all-optical network two-fibre two-way ring channels share protective device, the device of its all-optical network two-fibre two-way ring channels share protection is made of light intersection device X, optical selector spare S and light distribution device D,
Wherein, optical selector spare S is connected with this underground road port 3, service aisle input port 2 respectively, and light distribution device D is connected with road port 4, service aisle output port 5 on this locality respectively; Light intersection device X is connected with optical selector spare S, light distribution device D, protection channel output end mouth 1, protection passage input port 6 respectively.
2, all-optical network two-fibre two-way ring channels share protective device, its optical selector spare S1, light distribution device D1, light intersection device X1 constitute a protective device; Optical selector spare S2, light distribution device D2, light intersection device X2 constitute another protective device,
Wherein, light distribution device D1 is connected with road port 4 on service aisle output port 5, this locality respectively, optical selector spare S1 is connected with service aisle input port 2, this underground road port 3 respectively, and light intersection device X1 is connected with optical selector spare S1, light distribution device D1, protection passage input port 6, protection channel output end mouth 1 respectively; Light distribution device D2 is connected with road port 4 ' on service aisle output port 5 ', this locality respectively; optical selector spare S2 is connected with service aisle input port 2 ', this underground road port 3 ' respectively, and light intersection device X2 is connected with optical selector spare S2, light distribution device D2, protection passage input port 6 ', protection channel output end mouth 1 ' respectively.
3, all-optical network two-fibre two-way ring channels share protective device, the device of its all-optical network two-fibre two-way channels share protection is made of light intersection device X, light intersection device S and light intersection device D,
Wherein, light intersect device S one end respectively with local Working service under under the road port 3, local extra traffic road port 4 be connected, the other end intersects the port of device X with service aisle input port 2, light respectively and is connected; Light intersect device D one end respectively with local extra traffic on the road port 5, local Working service road port 6 be connected, the other end intersects the another port of device X with service aisle output port 7, light respectively and is connected; Light intersection device X also is connected with protection channel output end mouth 1, protection passage input port 8 respectively.
4, all-optical network two-fibre two-way ring channels share protective device, its light intersection device S1, light intersection device D1, light intersection device X1 constitute a protective device,
Wherein, light intersect device S1 an end respectively with local Working service under under the road port 3, local extra traffic road port 4 be connected, the other end intersects an end, the service aisle input port of device X1 with light respectively and is connected outward; Light intersect device D1 an end respectively with local extra traffic on the road port 5, local Working service road port 6 be connected, the other end intersects the other end, the service aisle output port 7 of device X1 with light respectively and is connected;
Light intersection device S2, light intersection device D2, light intersection device X2 constitute another protective device,
Wherein, light intersect device D2 an end respectively with local Working service on the road port 6 ', local extra traffic road port 5 ' be connected, the other end intersects an end, the service aisle output port 7 ' of device X2 with light respectively and is connected; Light intersect device S2 an end respectively with local extra traffic under under the road port 4 ', local Working service road port 3 ' be connected, the other end intersects the other end of device X2 with service aisle input port 2 ', light respectively and is connected;
Light intersection device X1 also is connected with service aisle input port 8, service aisle input port 2 respectively, and light intersection device X2 also is connected with service aisle input port 8 ', service aisle input port 1 ' respectively.
Because the present invention has adopted above technical scheme, thereby has following advantage:
1, light that applications exploiting of the present invention is 12 * 2 intersects device, and 12 is selected 1 optical selector spare, 11 fen light distribution device of 2; Or 32 * 2 light intersection device just can be finished the channels share protection of an intranodal to two one way traffics.
2, utilize two identical protective devices, just can finish the channels share protection of intranodal to two two-way services.
3; compare with the protection in 1: 1 of existing passage 1+1 protection, passage, adopted the principle of channels share protection, make a protection passage can protect on a plurality of service aisles sharedly business; thereby saved the cost of system, improved the bearing capacity of communication system business.
4, overall structure is simple, and transmission performance is reliable, and practical function is remarkable, can be widely used in the protection of all-optical network two fibre bidirectional loop channels share, society and remarkable in economical benefits.
Description of drawings
Guard ring principle schematic when Figure 1A is an a kind of all-optical network two-fibre two-way ring channels share operate as normal of the present invention;
Guard ring principle schematic when Fig. 2 A is an a kind of all-optical network two-fibre two-way ring channels share fault of the present invention;
Guard ring schematic block diagram when Fig. 3 A is an a kind of all-optical network two-fibre two-way ring channels share operate as normal of the present invention;
Fig. 4 A is the guard ring schematic block diagram of a kind of all-optical network two-fibre two-way ring channels share node of the present invention right side when breaking down:
Fig. 5 A is the guard ring schematic block diagram of a kind of all-optical network two-fibre two-way ring channels share node of the present invention left side when breaking down;
Guard ring principle schematic when Fig. 6 A is an another kind of all-optical network two-fibre two-way ring channels share operate as normal of the present invention;
Guard ring principle schematic when Fig. 7 A is the bad channels share fault of another kind of all-optical network two-fibre two-way of the present invention;
Guard ring schematic block diagram when Fig. 8 A is an a kind of two-way all-optical network two-fibre two-way ring channels share operate as normal of the present invention, and the internal frame diagram of C intranodal and switch after each device state schematic diagram;
Fig. 9 A be a kind of F intranodal among Fig. 8 A internal frame diagram and switch after each device state schematic diagram.
Guard ring principle schematic when Figure 1B is the two-fibre two-way ring channels share operate as normal of a kind of all-optical network band extra traffic of the present invention;
Guard ring principle schematic when Fig. 2 B is the two-fibre two-way ring channels share fault of a kind of all-optical network band extra traffic of the present invention;
Guard ring schematic block diagram when Fig. 3 B is the two-fibre two-way ring channels share operate as normal of a kind of all-optical network band extra traffic of the present invention;
Fig. 4 B is the guard ring schematic block diagram of the two-fibre two-way ring channels share node right side of a kind of all-optical network band extra traffic of the present invention when breaking down;
Fig. 5 B is the guard ring schematic block diagram of the two-fibre two-way ring channels share node left side of a kind of all-optical network band extra traffic of the present invention when breaking down;
Guard ring principle schematic when Fig. 6 B is the two-fibre two-way ring channels share operate as normal of another kind of all-optical network band extra traffic of the present invention;
Guard ring principle schematic when Fig. 7 B is the two-fibre two-way ring channels share fault of another kind of all-optical network band extra traffic of the present invention;
Guard ring schematic block diagram when Fig. 8 B is the two-fibre two-way ring channels share operate as normal of a kind of two-way all-optical network band extra traffic of the present invention, and the internal frame diagram of C intranodal and switch after each device state schematic diagram;
Fig. 9 B be a kind of F intranodal among Fig. 8 B internal frame diagram and switch after each device state schematic diagram.
Embodiment
Below in conjunction with accompanying drawing all-optical network two-fibre two-way ring channels share protective device of the present invention is implemented to do as detailed below;
In Figure 1A, the guard ring during all-optical network two-fibre two-way ring channels share operate as normal, by several (as 8) Optical Add Drop Multiplexer (OADM) nodes (called after A to H), and the Transmission Fibers between the node, constitute the two-fibre two-way ring in all optical network.
Wherein, " two fibres " is meant two optical fiber, ring and outer shroud in the ring of formation abbreviates as.As the professional transmission clockwise of ring in establishing, the professional transmission counterclockwise of outer shroud, both side signal transmissions are on the contrary, promptly described " two-way ".Inner and outer rings all has a plurality of wavelength transmission, i.e. " wavelength division multiplexing ".Each wavelength is exactly a passage.
During operate as normal, 1 wavelength of outer shroud carries a plurality of one way traffics (as 4 business: T1 among the figure, T2, T3, T4 dots), and 1 wavelength (dotting) of interior ring is transport service not, is reserved 4 business that are used to protect outer shroud.
Said " sharing " is meant the shared protection wavelength that uses interior ring of 4 business of outer shroud.
In Fig. 2 A, (represent with fork among the figure) that when breaking down between D, the E node the internodal T3 business of C, F is damaged.C, F node are protected switching operation to the T3 business.After protection was switched, the T3 business that the C node is set out on a journey changes walked interior ring, arrived node F through Node B, A, H, G, forwarded road under the outer shroud again to.So just guaranteed professional continuation transmission.
In Fig. 3 A, a kind of all-optical network two-fibre two-way ring channels share protective device is made of light intersection device X, optical selector spare S and light distribution device D, wherein,
Optical selector spare S is connected with this underground road, service aisle input respectively, and light distribution device D sets out on a journey with this locality respectively, service aisle output is connected; Light intersection device X is connected with optical selector spare S, light distribution device D, the output of protection passage, the input of protection passage respectively.
Optical selector spare S can adopt 2 to select 1 optical selector spare, and light distribution device D can adopt 1 minute 2 light distribution device, and light intersection device X can adopt 2 * 2 light intersection device.
When operate as normal, the present invention enters normal state.Its left side Working service by port 2., device S, 3. export to port.The business set out on a journey in this locality through port 4., 5. device D, port export from the right side.
During practical application, solid line is service aisle, just often bearer service among the figure; Dotted line is the protection passage, bearer service not just often, and only when breaking down, bearer service.
In Fig. 4 A, when the business of right side output was damaged, device of the present invention entered the right side from normal state and switches attitude.The business set out on a journey in this locality changes route, through port 4., device D, device X, 1. export to port.
In Fig. 5 A, when the business of left side input was damaged, device of the present invention entered the left side from normal state and switches attitude.The business of right side protection passage input through port 6., device X, device S, 3. export to port.
The signal that present embodiment also can be set out on a journey this locality is exported from the right side, switches to left side output.This underground road signal can also be imported from the left side, be switched to the right side input.By the switching of device of the present invention between three state, can realize the protection of two-fibre two-way ring channels share.
In Fig. 6 A, during operate as normal, two-way services between C, F node (T1 and T2) are by the λ of outer shroud
Outer 2The λ of wavelength and interior ring
Interior 1Wavelength transmission, the λ of outer shroud simultaneously
Outer 1The λ of wavelength and interior ring
Interior 2Wavelength is reserved and is used for protection.
In Fig. 7 A, when breaking down between D, E node, the device that C, F are ordered enters switches attitude.The professional T1 that the C node is set out on a journey is from wavelength X
Outer 2, be switched to interior ring, through λ
Interior 2Arrive the F node, be switched to outer shroud and following road again.The professional T2 that the F node is set out on a journey is from wavelength X
Interior 1, be switched to outer shroud, through λ
Outer 1Arrive the C node, road under the ring in being switched to again.
In Fig. 8 A, a kind of all-optical network two-fibre two-way of two-way ring channels share protective device, its optical selector spare S1, light distribution device D1, light intersect device X1 and constitute a protective device, and 1. associated port have～6..Optical selector spare S2, light distribution device D2, light intersection device X2 constitute another protective device, and 1. associated port has '～6. '.
Wherein, optical selector spare S1 is connected with road port 4 on service aisle output port 5, this locality respectively, light distribution device D1 is connected with service aisle input port 2, this underground road port 3 respectively, and light intersection device X1 is connected with optical selector spare S1, light distribution device D1, protection passage input port 6, protection channel output end mouth 1 respectively; Optical selector spare S2 is connected with road port 4 ' on service aisle output port 5 ', this locality respectively; light distribution device D2 is outer with the service aisle input port respectively, this underground road port 3 ' is connected, and light intersection device X2 is connected with optical selector spare S2, light distribution device D2, protection passage input port 6 ', protection channel output end mouth 1 ' respectively.
Among the figure, C node block diagram has comprised the device of two identical the present invention's protections, and 4. the T1 business is imported from port after the C node switches, 1. exports to port.The T2 business is from port 6. ' input, to port 3. ' output.
In Fig. 9 A, F node block diagram has comprised the device of two identical protections of the present invention.Its optical selector spare S1, light distribution device D1, light intersect device X1 and constitute a protective device, and 1. associated port have～6..Optical selector spare S2, light distribution device D2, light intersection device X2 constitute another protective device, and 1. associated port has '～6. '.
6. the T1 business is imported from port after the F node switches, 3. exports to port.The T2 business is from port 4. ' input, to port 1. ' output.
From the above mentioned; the present invention proposes a kind of device that is used for the all-optical network two fibre bidirectional loop channels share protection of wavelength-division multiplex system; utilize 12 * 2 light intersection device; select 1 optical selector spare for 12; 11 fen light distribution device of 2 just can be finished the channels share protection of an intranodal to two one way traffics.Utilize two identical devices, just can finish the channels share protection of intranodal two two-way services.
For looped network channels share protection, can protect business on a plurality of service aisles (but can not protect simultaneously, can only in business of some moment protections) with a protection passage.Like this, same system can provide more service aisle, carries more business, and protects service aisle with less protection passage.
Below in conjunction with the accompanying drawings the two-fibre two-way ring channels share protective device of another all-optical network band extra traffic of the present invention is implemented to do as detailed below again:
In Figure 1B; guard ring during the two-fibre two-way ring channels share operate as normal of all-optical network band extra traffic; by several (as 8) Optical Add Drop Multiplexer (OADM) nodes (called after A to H), and the Transmission Fibers between the node, constitute the two-fibre two-way ring in all optical network.
Wherein, " two fibres " is meant two optical fiber, ring and outer shroud in the ring of formation abbreviates as.As the professional transmission clockwise of ring in establishing, the professional transmission counterclockwise of outer shroud, both side signal transmissions are on the contrary, promptly described " two-way ".Inner and outer rings all has a plurality of wavelength transmission, i.e. " wavelength division multiplexing ".Each wavelength is exactly a passage.
During operate as normal, 1 wavelength of outer shroud carries a plurality of one way traffics (as 4 business: T1 among the figure, T2, T3, T4 dots), 1 wavelength (dotting) carrying a plurality of unidirectional extra traffics (as 4 business: T5 among the figure, T6 dots) of interior ring.Said " sharing " is meant the shared protection wavelength that uses interior ring of 4 business of outer shroud.
When the business of outer shroud broke down, the extra traffic that carries on the ring respective wavelength in all will be cancelled, and the wavelength of vacating is used for carrying impaired business.
In Fig. 2 B, (represent with fork among the figure) that when breaking down between D, the E node the internodal T3 business of C, F is damaged.Extra traffic T5, T6 is cancelled.C, F node are protected switching operation to the T3 business.After protection was switched, the T3 business that the C node is set out on a journey changes walked interior ring, arrived node F through Node B, A, H, G, forwarded outer shroud and road down again to.So just guaranteed to be damaged professional continuation transmission.
In Fig. 3 B, the two-fibre two-way ring channels share protective device of all-optical network band extra traffic, it is made of light intersection device X, light intersection device S and light intersection device D,
Wherein, light intersect device S one end respectively with local Working service under under the road port 3, local extra traffic road port 4 be connected, the other end intersects the port of device X with service aisle input port 2, light respectively and is connected; Light intersect device D one end respectively with local extra traffic on the road port 5, local Working service road port 6 be connected, the other end intersects the another port of device X with service aisle output port 7, light respectively and is connected; Light intersection device X also is connected with protection channel output end mouth 1, protection passage input port 8 respectively.
Light intersection device X, light intersection device S and light intersection device D can adopt 2 * 2 light intersection device.
When operate as normal, 3 light intersect devices crossing condition as shown in the figure, solid line is a service aisle, just often carries Working service; Dotted line just often carries extra traffic for the protection passage; Only when breaking down, just carry Working service.The Working service in left side by port 2., light intersects device S, 3. export to port.The business set out on a journey in this locality through port 6., light intersects device D, port and 7. exports from the right side.For extra traffic, if there is extra traffic road up and down this locality, then 8. extra traffic is imported from the right side port, by light intersection device X, light intersection device S, arrives port 4. on this underground road; The extra traffic of setting out on a journey in another this locality by port 5., light intersects device D, light and intersects device X, 1. export to port.If this locality does not have up and down road of extra traffic, then light intersects the state of device X and will change, make straight-through extra traffic by port 8., light intersection device X, 1. export to port.
In Fig. 4 B. when the business of right side output was damaged, protective device of the present invention entered the right side from normal state and switches attitude, and the crossing condition of 3 light intersection devices is as shown in the figure.The business set out on a journey in this locality changes route, through port 6., light intersect device D, light intersect device X, 1. export to port.Local extra traffic on road up and down or straight-through extra traffic will be terminated, can not normal transmission.
In Fig. 5 B. when the business of left side input was damaged, device of the present invention entered the left side from normal state and switches attitude, and the crossing condition of 3 light intersection devices is as shown in the figure.The business of right side protection passage input will change route, through port 8., light intersect device X, light intersection device S, 3. export to port.Local extra traffic on road up and down or straight-through extra traffic will be terminated, can not normal transmission.
In Fig. 6 B, 8 nodes and internodal optical fiber constitute the two-fibre two-way ring, and during operate as normal, two-way services between C, F node (T1 and T2) are by the λ of outer shroud
Outer 2The λ of wavelength and interior ring
Interior 1Wavelength transmission, the λ of outer shroud simultaneously
Outer 1The λ of wavelength and interior ring
Interior 2Wavelength transmission F, the internodal extra traffic of B (T3 and T4).
In Fig. 7 B, when breaking down between D, E node, the device of C, F node enters and switches attitude among the figure.B, the extra traffic that the F node is carried will be interrupted by fault, the λ that the internodal extra traffic of B, C takies
Interior 2, λ
Outer 1Wavelength resource is released, and is used to transmit the Working service after protected the switching.The professional T1 that the C node is set out on a journey is from wavelength X
Outer 2, be switched to interior ring, through λ
Interior 2Arrive the F node, be switched to outer shroud and following road again.The professional T2 that the F node is set out on a journey is from wavelength X
Interior 1, be switched to outer shroud, through λ
Outer 1Arrive the C node, ring and following road in being switched to again.
In Fig. 8 B, the two-fibre two-way ring channels share protective device of all-optical network band extra traffic, its light intersection device S1, light intersection device D1, light intersection device X1 constitute a protective device,
Wherein, light intersect device S1 an end respectively with local Working service under under the road port 3, local extra traffic road port 4 be connected, the other end intersects an end, the service aisle input port 2 of device X1 with light respectively and is connected; Light intersect device D1 an end respectively with local extra traffic on the road port 5, local Working service road port 6 be connected, the other end intersects the other end, the service aisle output port 7 of device X1 with light respectively and is connected;
Light intersection device S2, light intersection device D2, light intersection device X2 constitute another protective device,
Wherein, light intersect device D2 an end respectively with local Working service on the road port 6 ', local extra traffic road port 5 ' be connected, the other end intersects an end, the service aisle output port 7 ' of device X2 with light respectively and is connected; Light intersect device S2 an end respectively with local extra traffic under under the road port 4 ', local Working service road port 3 ' be connected, the other end intersects the other end of device X2 with service aisle input port 2 ', light respectively and is connected;
Light intersection device X1 also is connected with service aisle input port 8, service aisle input port 2 respectively, and light intersection device X2 also is connected with service aisle input port 8 ', service aisle input port 1 ' respectively.
Among the figure C node block diagram as shown in the figure, its light intersects device S1, light and intersects device D1, light and intersect device X1 and constitute a protective device 1,1. associated port have～8..Light intersection device S2, light intersection device D2, light intersection device X2 constitute a protective device 2, and 1. associated port has '～8. '.Among the figure, C node block diagram has also comprised the device of two identical the present invention's protections, and 6. the T1 business is imported from port after the C node switches, 1. exports to port.The T2 business is from port 8. ' input, to port 3. ' output.
In Fig. 9 B, F node block diagram has comprised the device of two identical protections.Optical selector spare S1, light distribution device D1, light intersect device X1 and constitute a protective device 1, and 1. associated port have～8..Optical selector spare S2, light distribution device D2, light intersection device X2 constitute a protective device 2, and 1. associated port has '～8. '.The state of each device as shown in Figure 9 after the F node switches.Switch back T1 business and 8. import, 3. export to port from port.The T2 business is from port 6. ' input, to port 1. ' output.
From the above mentioned; the present invention proposes a kind of device that is applied to the two-fibre two-way ring channels share protection of the all-optical network band extra traffic in the wavelength-division multiplex system; utilize 32 * 2 light intersection device; just can finish of the channels share protection of an intranodal to two one way traffics; utilize two identical devices, just can finish the channels share protection of intranodal two two-way services.And in non-guard mode the time, can also carry extra traffic.
Claims (9)
1. an all-optical network two-fibre two-way ring channels share protective device is characterized in that, the device of all-optical network two-fibre two-way ring channels share protection is made of light intersection device X, optical selector spare S and light distribution device D,
Wherein, optical selector spare S is connected with this underground road port 3, service aisle input port 2 respectively, and light distribution device D is connected with road port 4, service aisle output port 5 on this locality respectively; Light intersection device X is connected with optical selector spare S, light distribution device D, protection channel output end mouth 1, protection passage input port 6 respectively.
2. a kind of all-optical network two-fibre two-way ring channels share protective device according to claim 1; it is characterized in that; optical selector spare S1, light distribution device D1, light intersection device X1 constitute a protective device; optical selector spare S2, light distribution device D2, light intersection device X2 constitute another protective device
Wherein, light distribution device D1 is connected with road port 4 on service aisle output port 5, this locality respectively, optical selector spare S1 is connected with service aisle input port 2, this underground road port respectively, and light intersection device X1 is connected with optical selector spare S1, light distribution device D1, protection passage input port 6, protection channel output end mouth 1 respectively; Light distribution device D2 is connected with road port 4 ' on service aisle output port 5 ', this locality respectively; optical selector spare S2 is connected with service aisle input port 2 ', this underground road port 3 ' respectively, and light intersection device X2 is connected with optical selector spare S2, light distribution device D2, protection passage input port 6 ', protection channel output end mouth 1 ' respectively.
3. an all-optical network two-fibre two-way ring channels share protective device is characterized in that, the device of all-optical network two-fibre two-way channels share protection is made of light intersection device X, light intersection device S and light intersection device D,
Wherein, light intersect device S respectively with local Working service under under the road port 3, local extra traffic road port 4, service aisle input port 2, light intersect the port of device X and be connected; Light intersect device D respectively with local extra traffic on the road port 5, local Working service road port 6, service aisle output port 7, light intersect the another port of device X and be connected; Light intersection device X also is connected with protection channel output end mouth 1, protection passage input port 8 respectively.
4. an a kind of all-optical network two-fibre two-way ring channels share protective device according to claim 3 is characterized in that, light intersection device S1, light intersection device D1, light intersection device X1 constitute a protective device,
Wherein, light intersect device S1 respectively with local Working service under under the road port 3, local extra traffic road port 4, light intersect an end, the service aisle input port 2 of device X1 and be connected; Light intersect device D1 respectively with local extra traffic on the road port 5, local Working service road port 6, light intersect the other end, the service aisle output port 7 of device X1 and be connected;
Light intersection device S2, light intersection device D2, light intersection device X2 constitute another protective device,
Wherein, light intersect device D2 respectively with local Working service on the road port 6 ', local extra traffic road port 5 ', light intersect an end, the service aisle output port 7 ' of device X2 and be connected; Light intersect device S2 respectively with local extra traffic under under the road port 4 ', local Working service road port 3 ', service aisle input port 2 ', light intersect the other end of device X2 and be connected;
Light intersection device X1 also is connected with service aisle input port 8, service aisle input port 1 respectively, and light intersection device X2 also is connected with service aisle input port 8 ', service aisle input port 1 ' respectively.
5. according to claim 1 or 2,3,4 described a kind of all-optical network two-fibre two-way ring channels share protective devices; it is characterized in that; a kind of all-optical network two-fibre two-way ring channels share protective device is provided with guard ring; guard ring is by several Optical Add Drop Multiplexer nodes; and the connection of the Transmission Fibers between the node, constitute the two-fibre two-way ring in all optical network.
6. a kind of all-optical network two-fibre two-way ring channels share protective device according to claim 5 is characterized in that, guard ring is by several Optical Add Drop Multiplexer nodes, and the connection of the Transmission Fibers between the node, constitutes the two-fibre two-way ring in all optical network.
7. a kind of all-optical network two-fibre two-way ring channels share protective device according to claim 1 and 2 is characterized in that, optical selector spare S 2 selects 1 optical selector spare.
8. a kind of all-optical network two-fibre two-way ring channels share protective device according to claim 1 and 2 is characterized in that light distribution device D is 1 minute 2 a light distribution device.
9. according to claim 1 or 2,3,4 described a kind of all-optical network two-fibre two-way ring channels share protective devices, it is characterized in that light intersection device X is 2 * 2 light intersection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021450803A CN100336327C (en) | 2002-11-02 | 2002-11-02 | Full optical fiber network two fiber bidirectional loop channel shared protective device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021450803A CN100336327C (en) | 2002-11-02 | 2002-11-02 | Full optical fiber network two fiber bidirectional loop channel shared protective device |
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| CN1494250A true CN1494250A (en) | 2004-05-05 |
| CN100336327C CN100336327C (en) | 2007-09-05 |
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| CNB021450803A Expired - Lifetime CN100336327C (en) | 2002-11-02 | 2002-11-02 | Full optical fiber network two fiber bidirectional loop channel shared protective device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388708C (en) * | 2005-01-01 | 2008-05-14 | 华为技术有限公司 | Grouped light channel sharing protection method and system |
| CN105049112A (en) * | 2015-06-03 | 2015-11-11 | 武汉邮电科学研究院 | Wavelength division access protective ring based on monitoring wavelength |
| WO2016095715A1 (en) * | 2014-12-18 | 2016-06-23 | 中兴通讯股份有限公司 | Optical transceiving module and implementation method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093709C (en) * | 1998-03-20 | 2002-10-30 | 华为技术有限公司 | Method of carrying out fast protection conversion |
| CN1129261C (en) * | 1999-07-15 | 2003-11-26 | 华为技术有限公司 | Protective reversing and detecting method of synchronously triggered multiplexing band under multiple securities mechanism |
| AU2001268034A1 (en) * | 2000-03-10 | 2001-09-17 | Corning Incorporated | Devices and methods for controlling protection switching in an optical channel shared protection ring |
| JP2002271354A (en) * | 2001-03-06 | 2002-09-20 | Fujitsu Ltd | Light path switching apparatus and light wavelength multiplex diversity communication system |
-
2002
- 2002-11-02 CN CNB021450803A patent/CN100336327C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388708C (en) * | 2005-01-01 | 2008-05-14 | 华为技术有限公司 | Grouped light channel sharing protection method and system |
| US8103161B2 (en) | 2005-01-01 | 2012-01-24 | Huawei Technologies Co., Ltd. | Method, device and system for group optical channel shared protection |
| WO2016095715A1 (en) * | 2014-12-18 | 2016-06-23 | 中兴通讯股份有限公司 | Optical transceiving module and implementation method therefor |
| CN105049112A (en) * | 2015-06-03 | 2015-11-11 | 武汉邮电科学研究院 | Wavelength division access protective ring based on monitoring wavelength |
| CN105049112B (en) * | 2015-06-03 | 2018-01-02 | 武汉邮电科学研究院 | Wavelength-division access protection ring based on supervisory wavelength |
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| Publication number | Publication date |
|---|---|
| CN100336327C (en) | 2007-09-05 |
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