Background technology
At this stage, there are many transmission mediums for communication system, are broadly divided into electric signal transmission and optical fiber transmission.Electric signal transmissionMedium is suitble to short distance, low bandwidth, the communication system of low cost, and optical fiber transmission is answered commonly used in high bandwidth and long rangeWith.Complication with communication network and high speed, fiber optic communication has low-loss, high power capacity, and need not relay too muchThe advantages that device, is widely adopted in a communication network, and network communication technology is developed rapidly, to large capacity, high-speed, in real timeProperty, the transmission requirements such as stability it is also increasing, although many optical communication equipments carry fiber-optic self-healing ring network technology now,When occurring the problems such as multiple devices failure or optical fiber break in network, fiber-optic self-healing ring network technology is difficult to play a role.Network is increasingly sophisticated, and traditional communicating node device may give the chain where it once such as power-off burst failure occursOr ring network cause can not self-healing disconnection fault, and this failure that cannot restore in time, it will usually cause greatly to pass throughJi loss.
Existing optical communication equipment as shown in Figure 1, optical module 1 and optical module 2 are all connect with information exchange chip respectively, whenWhen failure, optical communication equipment after by the optical communication equipment can only rob and fixing, can just make on entire link down roadEntire link-recovery normal communication, seriously affects communication quality.
Utility model content
Being designed to provide for the utility model embodiment a kind of realizing that the optic communication of optical port redundant link defencive function is setIt is standby, can be in failure, light path bypasses faulty equipment, and redundancy is straight-through on a physical layer.
What the utility model embodiment was realized in：
Realize the optical communication equipment of optical port redundant link defencive function, including：Optical communication equipment shell, information exchange corePiece, two optical modules, photoswitch and two end optical fiber flange plate interfaces, information exchange chip, two optical modules and photoswitch are all pacifiedMounted in optical communication equipment enclosure, two end optical fiber flange plate interfaces are all mounted on optical communication equipment shell edge, an optical fiberRing flange interface connects photoswitch and forms the first access, another end optical fiber flange plate interface connects photoswitch and forms alternate path,Photoswitch includes being provided with there are two three contact switch and between two three contact switch and can leading to the first access and secondThe redundant link that road is directly connected to, the first access and alternate path are separately connected two three contact switch of photoswitch, and information is handed overChip is changed to connect with two three contact switch of photoswitch respectively by two optical modules respectively.
The utility model embodiment on optical communication equipment by being arranged photoswitch and end optical fiber flange plate interface so that lightIt is provided with redundant link between fine ring flange interface, when optical communication equipment breaks down, the redundant link can be started so thatIt is directly connected between end optical fiber flange plate interface, to shield optical communication equipment except entire link, to not interfere with itThe normal work of his optical communication equipment crosses the malfunctioning node, ensures the continuous-stable communication of network.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementationExample, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explainThe utility model is not used to limit the utility model.
The specific implementation of the utility model is described in detail below in conjunction with specific embodiment：
As shown in Fig. 2, realize the optical communication equipment of optical port redundant link defencive function, including：Optical communication equipment shell, letterCease exchange chip, two optical modules, photoswitch and two end optical fiber flange plate interfaces, information exchange chip, two optical modules and lightSwitch is all mounted on optical communication equipment enclosure, and two end optical fiber flange plate interfaces are all mounted on optical communication equipment shell edge,One end optical fiber flange plate interface connection photoswitch forms the first access, another end optical fiber flange plate interface connects photoswitch and forms theTwo accesses, photoswitch include there are two three contact switch and be provided between two three contact switch can by the first access andThe redundant link that alternate path is directly connected to, the first access and alternate path are separately connected two three contact switch of photoswitch,Information exchange chip is connect with two three contact switch of photoswitch by two optical modules respectively respectively.
The utility model, the existing convention optical communication equipment of comparison diagram 1, Fig. 2 increase a photoswitch and 2 Fiber Optic SensorsOptical port redundant link breaking protection function can be realized in blue disk.Optical module and photoswitch are mounted on inside equipment, end optical fiber flange plateOn device housings.What is transmitted between end optical fiber flange plate and pass switch, between photoswitch and optical module is optical signal, optical modeWhat is transmitted between block and information exchange chip is electric signal.Two fibre-optical splices of photoswitch front end, connect end optical fiber flange plate respectivelyInterface 1 and end optical fiber flange plate interface 2, two fibre-optical splices of photoswitch rear end, connect optical module 1 and optical module 2 respectively.
Equipment works on power normally under state, and optical signal is come in from end optical fiber flange plate 1, and optical mode is transmitted to by photoswitchBlock 1 is converted into electric signal by optical module 1 and is transmitted to information exchange chip；Electric signal after information exchange chip processing by being transmitted toOptical module 2, optical module 2 convert electrical signals into optical signal, and then optical signal transmits out by photoswitch and end optical fiber flange plate 2It goes, once the failures such as power down occurs in equipment, slack link is rapidly switched to inside photoswitch, shields the malfunctioning node, lightSignal is led directly to away.
In the embodiments of the present invention, inside traditional optical communication equipment, increase the light of controllable cut-in stand-by linkSwitch module circuit.Device looses power can be realized, optical fiber leads directly to function.Optical module and photoswitch are installed in inside equipment, warpThe end optical fiber flange plate interface on device housings is crossed, realizes external optical fiber interface.When without optical port redundant link protection work(When energy, photoswitch can not be installed, inside equipment, optical patchcord connects optical module and end optical fiber flange plate interface, you can does oftenOptical communication equipment is advised to use；When that need to use optical port redundant link defencive function, photoswitch one end connects optical module, one end connectionEnd optical fiber flange plate interface.Optical module interface is external, and end optical fiber flange plate interface is mounted on device housings.When without optical port redundancy chainWhen the defencive function of road, photoswitch need not be installed, external fiber, which is connected on optical module interface, can be used.When need use optical portWhen redundant link defencive function, external fiber is connected to photoswitch by end optical fiber flange plate, and the photoswitch other end again passes by optical fiberRing flange is connected on optical module.Using the equipment of the technology, forwarding optical signal can not only be received when equipment works normally；AlsoIt can be switched to slack link in time when the failures such as power down occur for equipment, cross the malfunctioning node, ensure the continuous of networkStabilized communication, and using the equipment of this structure, can not only do the equipment with optical port redundant link defencive function and use, but also canTo do conventional equipment use.A kind of structure, two kinds of equipment not only enrich product category, but also can reduce cost.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at thisAll any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility modelProtection domain within.