CN2759065Y - Single board with optical fiber interface - Google Patents
Single board with optical fiber interface Download PDFInfo
- Publication number
- CN2759065Y CN2759065Y CNU2004201167579U CN200420116757U CN2759065Y CN 2759065 Y CN2759065 Y CN 2759065Y CN U2004201167579 U CNU2004201167579 U CN U2004201167579U CN 200420116757 U CN200420116757 U CN 200420116757U CN 2759065 Y CN2759065 Y CN 2759065Y
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- Prior art keywords
- optical fiber
- fiber interface
- control switch
- switch
- veneer
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Abstract
The utility model discloses a single board with an optical fiber interface, which solves the problems that a single board in the prior art can only provide a single optical fiber interface, the time of exchange of the optical fiber interface is long and the cost of a single board which support various optical fiber interfaces is high. The single board comprises a processing chip for processing a digital frame, a control switch and at least two optical fiber interfaces. The control switch is respectively connected with the processing chip, and the receiving end and the sending end of the optical fiber interface. One optical fiber interface is selected by the control switch to be communicated with the processing chip, or the two optical fiber interfaces are selected to be communicated with the processing chip. The utility model is mainly used for exchange and intercommunication of single-multiple modular optical fiber interfaces.
Description
Technical field
This practicality relates to optical communication technique, specifically refers to a kind of veneer with optical fiber interface.
Background technology
At present increasing communication equipment provides optical fiber interface, and common have 155M or a 622M optical fiber interface, and these optical fiber interfaces comprise monomode fiber interface, multimode fiber interface.The monomode fiber interface can only interconnect with the monomode fiber interface, and connecting medium can only be used monomode fiber; The multimode fiber interface can only interconnect with the multimode fiber interface, and connecting medium can only be used multimode fiber.If be that monomode fiber interface another side is the multimode fiber interface on one side, even perhaps both sides all are with a kind of interface, still but there is not the optical fiber of coupling, will cause and can't interconnect.Similar problem also occurs on considerable communication test instrument, only provides a kind of optical fiber interface on the general instrument, if inconsistent with the interface of equipment under test, just needs to change the interface card of instrument or equipment.
Solve the problem of monomode fiber interface and multimode fiber interface interconnection, the method that generally adopts is that optical fiber interface is made on the buckle at present, and provides two kinds of different buckles to the user, and a kind of is the single mode buckle, a kind of is the multimode buckle, and the user is according to end interface is selected suitable buckle.
There is following shortcoming in prior art:
1, cost height: generally optical fiber interface and asic chip are all accomplished on the buckle,, must be prepared two blocks of optical fiber interface buckles so if the user wishes that equipment can support two kinds of optical fiber interfaces.
2, poor reliability: owing to adopt the mode of buckle, thus very high to the requirement of connector, if often plug the light buckle then may cause the signal quality variation.
3, can not carry out Hot Spare: changing the light buckle generally all needs the closing device power supply, thereby the meeting interrupting service, can't carry out the Hot Spare of light path.
4, development difficulty is bigger: because transmission is high speed signal, doing two blocks of buckles then needs to consider the problem that connects up between buckle and the motherboard.
The utility model content
The utility model provides a kind of veneer with optical fiber interface, grows and supports the high problem of multiple optical fiber interface cost so that the time that can only provide single optical fiber interface to exist to switch optical fiber interface because of veneer to be provided in the prior art.
For addressing the above problem, the utility model provides following technical scheme:
A kind of veneer with optical fiber interface comprises the process chip of handling digital frame, the optical fiber interface of connection processing chip and optical fiber; Wherein, described veneer also comprises control switch, and described optical fiber interface comprises a monomode fiber interface and a dual mode optical fiber interface at least; Described control switch is connected with reception, the transmitting terminal of described process chip and optical fiber interface respectively; This control switch selects one of them optical fiber interface to be communicated with described process chip, or selects described two optical fiber interfaces also described two optical fiber interfaces to be communicated with.
Described control switch is the control switch that programmable logic chip is realized; Perhaps described control switch is a plucking number sign switch.
Described control switch is that control switch is the double-pole multithrow switch, perhaps is the multitool multithrow switch.
The utlity model has following beneficial effect:
1, compared with prior art, monomode fiber interface and multimode fiber sets of interfaces are formed in a veneer, be the purpose of reaching monomode fiber interface and the switching of multimode fiber interface equally, saved a synchronous digital hierarchy (SDH) chip, saved buckle structure, reduced equipment cost, reduced development difficulty, thereby less greatly plug number of times has strengthened equipment dependability.
2, the switching of single multimode fiber interface can just can be finished by software, need not powered-down or plug veneer, so just can not switch the influence business because of single multimode, even being out of order, an optical fiber interface or an optical fiber also can switch to another light path immediately by software, so just realize the optical fiber interface warm standby function, improved fail safe, the reliability of business data transmission greatly.
3, the mutual translation function of input, output signal between monomode fiber interface and the multimode fiber interface is provided, has realized the interconnection between monomode fiber interface equipment and the multimode fiber interface equipment, make that the incompatible problem of single multimode is effectively solved.
Description of drawings
Figure 1 shows that the utility model selection monomode fiber interface and SDH frame process chip UNICOM schematic diagram;
Figure 2 shows that the utility model selection multimode fiber interface and SDH frame process chip UNICOM schematic diagram;
Figure 3 shows that the conversion schematic diagram between the utility model monomode fiber interface and the multimode fiber interface.
Embodiment
The utility model can provide monomode fiber interface and multimode fiber interface simultaneously having on the veneer of optical fiber interface, need to be selected the optical fiber interface that is communicated with by a control switch.
Consult shown in Figure 1ly, veneer comprises handles synchronous digital hierarchy (SDH) frame process chip, control switch, a monomode fiber interface and a multimode fiber interface.Certainly, also comprise other circuit (not shown)s that realize the veneer function on this veneer.Control switch can be the double-pole multithrow switch, also can be the multitool multithrow switch.
Control switch is a DPTT double-pole triple throw switch in the present embodiment, adopts programmable logic chip to realize, the gear of DPTT double-pole triple throw switch is realized the various handoff functionalities of switch then by a register controlled by the software setting register.
Among Fig. 1, the contact 1,2 of DPTT double-pole triple throw switch links to each other with transmitting terminal with the receiving terminal of monomode fiber interface module respectively; Contact 3,4 is connected with transmitting terminal Rx with the transmitting terminal Tx of process chip respectively; Contact 5,6 links to each other with transmitting terminal with the receiving terminal of multimode optical fiber interface respectively; Contact 7,8 links to each other with the transmitting terminal of monomode fiber interface and the receiving terminal of monomode fiber interface respectively.
The choice of location monomode fiber interface of control switch is communicated with process chip among Fig. 1, be that the contact 1,3 of switch links to each other the receiving terminal of monomode fiber interface is linked to each other with the transmitting terminal Tx of process chip, the contact of switch 2,4 is continuous to make the transmitting terminal of monomode fiber interface link to each other with the receiving terminal Rx of process chip.
Consult shown in Figure 2, the choice of location dual mode optical fiber interface of control switch is communicated with process chip, be that the contact 3,5 of switch links to each other the receiving terminal of dual mode optical fiber interface is linked to each other with the transmitting terminal Tx of process chip, the contact of switch 4,6 is continuous to make the transmitting terminal of dual mode optical fiber interface link to each other with the receiving terminal Rx of process chip.
Consult shown in Figure 3, the choice of location dual mode optical fiber interface of control switch and the conversion between the monomode fiber interface, be that the contact 5,7 of switch links to each other the receiving terminal of dual mode optical fiber interface is linked to each other with the transmitting terminal of monomode fiber interface, the contact of switch 6,8 is continuous to make the transmitting terminal of dual mode optical fiber interface link to each other with the receiving terminal of monomode fiber interface.
If do not select optical fiber interface, then can directly adopt toggle switch or select for use other functionally similar devices to replace programmable logic chip, further to reduce cost by software.
In above-mentioned veneer, what control switch connected also can be two monomode fiber interfaces, perhaps two dual mode optical fiber interfaces, and its control principle is same as described above.
In addition according to actual needs, the quantity of optical fiber interface also can be more than two on the veneer, and those of ordinary skill in the art need can not obtain corresponding structure through performing creative labour by above-mentioned description.
The utlity model has following beneficial effect:
1, compared with prior art, monomode fiber interface and multimode fiber sets of interfaces are formed in a veneer, be the purpose of reaching monomode fiber interface and the switching of multimode fiber interface equally, saved a SDH chip, saved buckle structure, reduced equipment cost, reduced development difficulty, thereby less greatly plug number of times has strengthened equipment dependability.
2, the switching of single multimode fiber interface can just can be finished by software, need not powered-down or plug veneer, so just can not switch the influence business because of single multimode, even being out of order, an optical fiber interface or an optical fiber also can switch to another light path immediately by software, so just realize the optical fiber interface warm standby function, improved fail safe, the reliability of business data transmission greatly.
3, the mutual translation function of input, output signal between monomode fiber interface and the multimode fiber interface is provided, has realized the interconnection between monomode fiber interface equipment and the multimode fiber interface equipment, make that the incompatible problem of single multimode is effectively solved.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (4)
1, a kind of veneer with optical fiber interface comprises the process chip of handling digital frame, the optical fiber interface of connection processing chip and optical fiber; It is characterized in that described veneer also comprises control switch, described optical fiber interface comprises a monomode fiber interface and a dual mode optical fiber interface at least; Described control switch is connected with reception, the transmitting terminal of described process chip and optical fiber interface respectively; This control switch selects one of them optical fiber interface to be communicated with described process chip, or selects described two optical fiber interfaces also described two optical fiber interfaces to be communicated with.
2, veneer as claimed in claim 1 is characterized in that, described control switch is the control switch that programmable logic chip is realized.
3, veneer as claimed in claim 1 is characterized in that, described control switch is a plucking number sign switch.
As each described veneer of claim 1 to 3, it is characterized in that 4, described control switch is that control switch is the double-pole multithrow switch, perhaps is the multitool multithrow switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201167579U CN2759065Y (en) | 2004-12-02 | 2004-12-02 | Single board with optical fiber interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201167579U CN2759065Y (en) | 2004-12-02 | 2004-12-02 | Single board with optical fiber interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759065Y true CN2759065Y (en) | 2006-02-15 |
Family
ID=36079201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201167579U Expired - Fee Related CN2759065Y (en) | 2004-12-02 | 2004-12-02 | Single board with optical fiber interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759065Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445950C (en) * | 2006-09-27 | 2008-12-24 | 华为技术有限公司 | Inter-veneer data loading method and system and connection device for veneer loading |
| CN106227098A (en) * | 2016-08-25 | 2016-12-14 | 许继集团有限公司 | Protective relaying device and security isolation control method thereof and control device |
-
2004
- 2004-12-02 CN CNU2004201167579U patent/CN2759065Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445950C (en) * | 2006-09-27 | 2008-12-24 | 华为技术有限公司 | Inter-veneer data loading method and system and connection device for veneer loading |
| CN106227098A (en) * | 2016-08-25 | 2016-12-14 | 许继集团有限公司 | Protective relaying device and security isolation control method thereof and control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060215 Termination date: 20131202 |