CN101931467A - External optical fiber Bypass equipment and optical signal channel switching method - Google Patents
External optical fiber Bypass equipment and optical signal channel switching method Download PDFInfo
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- CN101931467A CN101931467A CN2009101888264A CN200910188826A CN101931467A CN 101931467 A CN101931467 A CN 101931467A CN 2009101888264 A CN2009101888264 A CN 2009101888264A CN 200910188826 A CN200910188826 A CN 200910188826A CN 101931467 A CN101931467 A CN 101931467A
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- programmable logic
- logic controller
- optical fiber
- optical signal
- signal converter
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Abstract
The invention relates to external optical fiber Bypass equipment. The equipment comprises an optical signal converter, a programmable controller and a power converter, wherein the optical signal converter is connected with the programmable controller; the power converter supplies power to the optical signal converter and the programmable controller; the programmable controller is used for receiving a control signal sent by a host and indicating the optical signal converter according to the control signal; and the optical signal converter is used for switching optical signal channels according to the indication of the programmable controller. On the host with an optical fiber network card, a Bypass function can be realized by allocating the external optical fiber Bypass equipment without replacing any original hardware equipment; and therefore, the equipment has the characteristics of high selectivity, low replacement cost and convenient upgrade.
Description
Technical field
The present invention relates to the optical signal processing device technical field, more particularly, relate to the changing method of a kind of external optical fiber Bypass equipment and photo-signal channel.
Background technology
The Bypass[bypass functionality, can allow the not system by Network Security Device of two networks by specific triggering state (outage or crash)] equipment, to the real-time place of having relatively high expectations, as units such as government, telecommunications, education, medical treatment, electric power, traffic, scientific research institutions is indispensable network switched system, and conclusive effect is played in protection to the Single Point of Faliure in the circuit.Network bypass equipment is used for protection and prevents that disparate networks serial connection gateway device (as network firewall, Anti Virus Gateway, Anti-Spam gateway etc.) from becoming Single Point of Faliure because of accident inefficacy (as hardware fault, power failure, software deadlock etc.); or when carrying out upgrade maintenance, these gateway devices provide favourable help; it is with timely switching device; make the network link protection be pass-through state; thereby prevent the network paralysis that causes thus, improved the reliability of network.
Networks development is more and more faster, the development of all trades and professions has more and more be unable to do without network, requirement on network security and speed is also more and more higher so, as general needed Bypass function on network security, the speed of common electric network mainboard can not satisfy the demand in market, so the appearance of fiber optic network mainboard also just becomes the inevitable outcome of market development.At present common fiber optic network mainboard product is more and more, but, these fiber optic network mainboard products are not with the Bypass function basically, though and current few portioned product band Bypass function arranged, but the optical mesh network mainboard product of the above-mentioned Bypass of having function usually is to adopt the mode of integrated design directly this function to be made on the mainboard, it often faces the price height, and washability is not strong, and existing systems is not easy shortcomings such as upgrading.
Summary of the invention
The technical problem to be solved in the present invention is, at the defective that fiber optic network mainboard product washability is not high, replacement cost is high, upgrading is difficult of existing integrated Bypass function, provides the changing method of a kind of external optical fiber Bypass equipment and photo-signal channel.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of external optical fiber Bypass equipment, it comprises: optical signal converter, Programmable Logic Controller and power supply changeover device, described optical signal converter connects described Programmable Logic Controller, and described power supply changeover device provides power supply for described optical signal converter and Programmable Logic Controller, wherein:
Described Programmable Logic Controller is used to receive the control signal that main frame sends over, and indicates described optical signal converter according to described control signal;
Described optical signal converter is used for the indication switching optical path passage according to described Programmable Logic Controller.
Wherein, preferred, described Programmable Logic Controller is used for indicating described optical signal converter that the state of each group photo-signal channel is carried out independence or control simultaneously according to described control signal.
Wherein, preferred, described Programmable Logic Controller is used for forcing control model, house dog control model or presetting the described optical signal converter switching optical path passage of indication under the control model according to described control signal.
Wherein, preferred, described Programmable Logic Controller comprises Bypass control register, house dog pattern control register and presets control register.
Wherein, preferred, described power supply changeover device comprises serial port device that is used for directly power supply or the power transfer module that is used for power source conversion.
Wherein, preferred, described Programmable Logic Controller is connected by interface with described main frame.
Wherein, preferred, described interface comprises serial ports, parallel port or USB interface.
The present invention also provides a kind of changing method of photo-signal channel, and it is applied to the external optical fiber Bypass equipment that technique scheme provides, and wherein, described method comprises step:
Described Programmable Logic Controller receives the control signal that main frame sends over, and indicates described optical signal converter according to described control signal;
Described optical signal converter is according to the indication switching optical path passage of described Programmable Logic Controller.
Implement technical scheme of the present invention, has following beneficial effect: can be on the main frame that has the optical fiber network interface card, do not need to change original any hardware device, only need to be equipped with this external optical fiber Bypass equipment and just can realize the Bypass function, washability is strong, replacement cost is high, upgrading is convenient.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
The external optical fiber Bypass device structure schematic diagram that Fig. 1 provides for the embodiment of the invention;
The changing method flow chart of the photo-signal channel that Fig. 2 provides for the embodiment of the invention;
The workflow diagram of the external optical fiber Bypass equipment Application Example that Fig. 3 provides for the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides a kind of external optical fiber Bypass equipment, as shown in Figure 1, it comprises: optical signal converter, Programmable Logic Controller and power supply changeover device (not drawing among the figure), described optical signal converter connects described Programmable Logic Controller, described Programmable Logic Controller connects normal hosts (that is, not having the main frame of integrated Bypass function) by interface, in the present embodiment, this interface can be serial ports, also can be parallel port or USB interface.
Described power supply changeover device provides power supply for described optical signal converter and Programmable Logic Controller, wherein:
Described Programmable Logic Controller is used to receive the control signal that main frame sends over, and indicates described optical signal converter according to described control signal; Concrete, as shown in Figure 1, this photo-signal channel comprises link a, b, c, d, e, f, g, the h point of optical connector (LC conn), light signal switch, each optical connector is connected with the mutual signal of normal hosts by corresponding interface 1, interface 2.... interface 4 etc., and optical connector is realized the respective via switching by the link of light signal switch.Be described Programmable Logic Controller, be used for indicating described optical signal converter that the state of each group photo-signal channel is carried out independence or control simultaneously according to described control signal.
Described optical signal converter is used for the indication switching optical path passage according to described Programmable Logic Controller.To realize external optical fiber Bypass function.
The fiber-optic signal line of normal hosts is not direct and miscellaneous equipment joins, but be connected with miscellaneous equipment again behind the external optical fiber Bypass equipment that provides by this embodiment, this main frame sends control information to Programmable Logic Controller by serial ports, programmable controller unit is through Signal Processing, go to control light signal switch unit, corresponding photo-signal channel is switched on the respective via, in Fig. 1, when switching to a, c, (this Fig. 1 switches to a when e and g point, c, the state that e and g are ordered), each group light signal all is in the regular path state, when switching to b, d, when f and h point, each group photo-signal channel all is in the Bypass state, thereby realizes the Bypass function.
In a further embodiment, described Programmable Logic Controller is used for forcing control model, house dog control model or presetting the described optical signal converter switching optical path passage of indication under the control model according to described control signal.In this further embodiment, described Programmable Logic Controller is a fpga chip, and the realization specific logical function of programming can be done independent or control simultaneously to each state of organizing signal path, the pressure control model is arranged, house dog control model and preset control model.Force control model to be meant that signal path unconditionally switches to normal condition or Bypass state; The house dog control model is meant system when not having to satisfy the conditional request that sets, and system will overflow by generation time, and house dog triggers, and the signal path that sets enters the Bypass state;
Preset control model and be meant that the default signal path will switch to specific state under a certain condition, as: design signal path in advance and when starting shooting, switch to the Bypass state next time, control unit so able to programme will be judged and restarts or open state next time, thereby the state of signal path is switched to the Bypass state.
In this further embodiment, this main frame also can read the residing state status of current each signal path by serial ports.
In specific embodiment, described Programmable Logic Controller comprises Bypass control register (SetupBypass Register, abbreviation CSBR), house dog pattern control register (Watchdog Set Register, be called for short WSR) and preset control register (Nextboot Setup Bypass Register is called for short NSB).With a certain group of Bypass is the example process description of working, and as shown in Figure 3, normal hosts is judged whether set of CSBR, if, then enter the Bypass state immediately, if not, then keep current state (Normal); In like manner, normal hosts judges whether WSR overflows, if, then enter the Bypass state immediately, if not, then keep current state (Normal); Normal hosts is judged whether set of NSB, if, then enter the Bypass state immediately, if not, then keep current state (Normal).
In specific embodiment, described power supply changeover device comprises serial port device that is used for directly power supply or the power transfer module that is used for power source conversion.That is: on this external optical fiber Bypass equipment of serial, do power supply and reserve design, the normal hosts serial ports that need be joined this moment also will meet the serial ports design of this reservation power supply, can be connected by the serial ports of the serial ports on this main frame and this external optical fiber Bypass equipment like this, power supply is provided.In addition, also can directly do power source conversion, convert the needed 5V voltage of this external optical fiber Bypass equipment to by the AC/DC transducer.
The embodiment of the invention also provides a kind of changing method of photo-signal channel, is applied on the external optical fiber Bypass equipment that the foregoing description provides, and wherein, as shown in Figure 2, described method comprises step:
201, described Programmable Logic Controller receives the control signal that main frame sends over, and indicates described optical signal converter according to described control signal;
202, described optical signal converter is according to the indication switching optical path passage of described Programmable Logic Controller
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. external optical fiber Bypass equipment, it is characterized in that, comprising: optical signal converter, Programmable Logic Controller and power supply changeover device, described optical signal converter connects described Programmable Logic Controller, described power supply changeover device provides power supply for described optical signal converter and Programmable Logic Controller, wherein:
Described Programmable Logic Controller is used to receive the control signal that main frame sends over, and indicates described optical signal converter according to described control signal;
Described optical signal converter is used for the indication switching optical path passage according to described Programmable Logic Controller.
2. external optical fiber Bypass equipment according to claim 1 is characterized in that, described Programmable Logic Controller is used for indicating described optical signal converter that state of each group photo-signal channel is carried out independence or controlling simultaneously according to described control signal.
3. external optical fiber Bypass equipment according to claim 1 is characterized in that,
Described Programmable Logic Controller is used for forcing control model, house dog control model or presetting the described optical signal converter switching optical path passage of indication under the control model according to described control signal.
4. external optical fiber Bypass equipment according to claim 1 is characterized in that described Programmable Logic Controller comprises Bypass control register, house dog pattern control register and presets control register.
5. external optical fiber Bypass equipment according to claim 1 is characterized in that, described power supply changeover device comprises serial port device that is used for directly power supply or the power transfer module that is used for power source conversion.
6. external optical fiber Bypass equipment according to claim 1 is characterized in that described Programmable Logic Controller is connected by interface with described main frame.
7. as external optical fiber Bypass equipment as described in the claim 6, it is characterized in that described interface comprises serial ports, parallel port or USB interface.
8. the changing method of a photo-signal channel is characterized in that, is applied to the described external optical fiber Bypass equipment of claim 1, and wherein, described method comprises step:
Described Programmable Logic Controller receives the control signal that main frame sends over, and indicates described optical signal converter according to described control signal;
Described optical signal converter is according to the indication switching optical path passage of described Programmable Logic Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101888264A CN101931467A (en) | 2009-12-11 | 2009-12-11 | External optical fiber Bypass equipment and optical signal channel switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101888264A CN101931467A (en) | 2009-12-11 | 2009-12-11 | External optical fiber Bypass equipment and optical signal channel switching method |
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| Publication Number | Publication Date |
|---|---|
| CN101931467A true CN101931467A (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101888264A Withdrawn CN101931467A (en) | 2009-12-11 | 2009-12-11 | External optical fiber Bypass equipment and optical signal channel switching method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064967A (en) * | 2010-12-31 | 2011-05-18 | 成都市华为赛门铁克科技有限公司 | BYPASS realizing method, equipment and system |
| CN102064968A (en) * | 2010-12-31 | 2011-05-18 | 成都市华为赛门铁克科技有限公司 | Method, device and system for preventing embedded BYPASS device from powering down |
| CN103220040A (en) * | 2013-03-26 | 2013-07-24 | 汉柏科技有限公司 | Method and system for switching state of embedded optical port BYPASS |
| CN114338457A (en) * | 2021-12-23 | 2022-04-12 | 绿盟科技集团股份有限公司 | System, method, device, equipment and medium for testing network card switching effectiveness |
-
2009
- 2009-12-11 CN CN2009101888264A patent/CN101931467A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064967A (en) * | 2010-12-31 | 2011-05-18 | 成都市华为赛门铁克科技有限公司 | BYPASS realizing method, equipment and system |
| CN102064968A (en) * | 2010-12-31 | 2011-05-18 | 成都市华为赛门铁克科技有限公司 | Method, device and system for preventing embedded BYPASS device from powering down |
| CN102064967B (en) * | 2010-12-31 | 2013-01-02 | 成都市华为赛门铁克科技有限公司 | BYPASS realizing method, equipment and system |
| CN102064968B (en) * | 2010-12-31 | 2013-01-23 | 华为数字技术（成都）有限公司 | Method, device and system for preventing embedded BYPASS device from powering down |
| CN103220040A (en) * | 2013-03-26 | 2013-07-24 | 汉柏科技有限公司 | Method and system for switching state of embedded optical port BYPASS |
| CN114338457A (en) * | 2021-12-23 | 2022-04-12 | 绿盟科技集团股份有限公司 | System, method, device, equipment and medium for testing network card switching effectiveness |
| CN114338457B (en) * | 2021-12-23 | 2023-12-01 | 绿盟科技集团股份有限公司 | Test system, method, device, equipment and medium for network card switching effectiveness |
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Open date: 20101229 |