CN2749185Y - An optical signal converter - Google Patents
An optical signal converter Download PDFInfo
- Publication number
- CN2749185Y CN2749185Y CNU2004200870887U CN200420087088U CN2749185Y CN 2749185 Y CN2749185 Y CN 2749185Y CN U2004200870887 U CNU2004200870887 U CN U2004200870887U CN 200420087088 U CN200420087088 U CN 200420087088U CN 2749185 Y CN2749185 Y CN 2749185Y
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- photoelectric conversion
- conversion module
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Abstract
The utility model discloses an optical signal converter which is used for the optical interfaces jointing between the first and second equipment, comprising first photoelectric conversion modules which are electrically connected with each other and a second photoelectric conversion module. Wherein, the light signal which comes from the optical interface of the first equipment is transformed into the electrical signal by the first photoelectric conversion module and sent to the second photoelectric conversion module; the second photoelectric conversion module receives the electrical signal, transforms the electrical signal into the light signal and sends the light signal to the optical interface of the second equipment.
Description
Technical field
The utility model relates to signal transmission technology in the communication and the network equipment, particularly relates to a kind of optical signal conversion apparatus.
Background technology
Along with society and scientific and technological progress, information interchange between the people and communication are frequent day by day, and the data of transmitting among communication network or the internet also increase thereupon.In order to adapt to this development trend, consider that optical fiber transmission technique has that capacity is big, speed is fast, performance is good and characteristics such as bandwidth characteristic is good, in the existing communication and the network equipment, Ethernet (Ethernet), ATM (Asynchronous Transfer Mode, asynchronous transfer mode), POS (Packets Over SDH, transmit based on the bag of SDH (Synchronous Digital Hierarchy)) and RPR business interfaces such as (Resilient Packet Ring, Resilient Packet Ring) all use optical interface in a large number.
Optical interface need use photoelectric conversion module, and photoelectric conversion module (being called for short light I/F module) is the module that the mutual conversion in inside (light/electric conversion) is also transmitted with the light signal and the signal of telecommunication.See also Fig. 1, photoelectric conversion module is made up of electrical interface 110, optical interface 120, light source 130, drive circuit 140 and receiving circuit 150 usually; Electrical interface 110 is used for receiving or the emission signal of telecommunication; Optical interface 120 is used for receiving or the emission light signal; The signal of telecommunication that light source 130 is used for receiving according to electrical interface 110 produces light signal under drive circuit 140 effects; Receiving circuit 150 is used for the light signal generating signal of telecommunication according to optical interface 120 receptions.
At present, industry has developed the photoelectric conversion module that plurality of specifications, and it can be distinguished according to the type of optical interface, as being divided into multimode photoelectric conversion module and single mode photoelectric conversion module by pattern; Can be divided into short wavelength's photoelectricity modular converter and long wavelength's photoelectricity modular converter by wavelength; Can be divided into short distance photoelectric conversion module, middle distance photoelectric conversion module and long by distance apart from photoelectric conversion module.
Because photoelectric conversion module has plurality of specifications, and the photoelectric conversion module of different size often can not directly achieve a butt joint.Therefore, when the communication equipment that disposes photoelectric conversion module and tester or different types of equipment interconnection, tend to occur the problem that successfully to dock because of the Type-Inconsistencies of indivedual photoelectric conversion modules.
In order to change photoelectric conversion module easily, occurred can the direct heat plug photoelectric conversion module GBIC (Gigabit Interface Converter, GigaBit Interface Converter) photoelectric conversion module and SFP (Small Form Factor Plugable, little encapsulation is hot-swappable) photoelectric conversion module.Wherein, GBIC is owing to the optical interface employing is the SC interface, and volume is bigger, is unfavorable for the veneer that interface is intensive; And the SFP photoelectric conversion module of the LC interface of releasing subsequently has miniaturization (volume of LC interface is about half of SC interface), integrated characteristics, is the industry device of main flow day by day at present.
But, because that a large amount of old communication and the network equipment (comprising some new equipments) use is SFF (Small Form Factor, little encapsulation) optical module, and the SFF optical module is welded on the veneer, during situation about can't dock, need to change the coupling that interface board is realized photoelectric conversion module when the photoelectric conversion module Type-Inconsistencies occurring.At this moment, can only make under system or the veneer electricity earlier, change the wherein photoelectric conversion module of a method, apparatus, make the photoelectric conversion module at two ends realize coupling, its shortcoming is to operate comparatively complicated and must make system or veneer down.
The utility model content
At the above-mentioned defective of prior art, the technical problem that the utility model solves is to provide a kind of optical signal conversion apparatus, can realize the convenient butt joint of the dissimilar photoelectric conversion modules of equipment room.
For this reason, the technical scheme of the utility model technical solution problem is: a kind of optical signal conversion apparatus is provided, is used to the butt joint between the optical interface of first and second equipment of realizing; Comprise:
Mutual first photoelectric conversion module and second photoelectric conversion module that is electrically connected;
Wherein, the light signal from the optical interface of described first equipment is sent to second photoelectric conversion module after first photoelectric conversion module is converted to the signal of telecommunication; After receiving the described signal of telecommunication and be converted to light signal, described second photoelectric conversion module is sent to the optical interface of described second equipment.
Preferably, described first and second photoelectric conversion modules are the hot-swappable photoelectric conversion modules of little encapsulation.
Preferably, described first and second photoelectric conversion modules are the gigabit photoelectric conversion modules that are applicable to gigabit Ethernet.
With respect to prior art, the beneficial effects of the utility model are: because the utility model utilizes the characteristics of the electrical interface side signal unanimity of photoelectric conversion module, adopt the first dissimilar photoelectric conversion modules and second photoelectric conversion module to realize the conversion of light signal, therefore when the photoelectric conversion module type of the optical interface of the service of connection devices not simultaneously, the light signal of an end equipment optical interface wherein can be carried out conversion of signals via the utility model optical signal conversion apparatus, convert light signal to opposite end optical interface model identical and wavelength.The utility model has successfully solved when system's optical interface interoperability test instrument or distinct device, the problem that can't dock because of the photoelectric conversion module Type-Inconsistencies.And it is simple to operate, more convenient flexible.Even what communication equipment adopted is the SFF optical module, the utility model also need not make under system or the veneer.
In addition, the utility model can also be used for the optical signal repeater implementation.
Description of drawings
Fig. 1 is the theory diagram of photoelectric conversion module;
Fig. 2 is the theory diagram of the utility model optical signal conversion apparatus.
Embodiment
Though consider the light signal difference of dissimilar photoelectric conversion modules at the optical interface place, be identical at the electrical interface of socket side, all be LVPECL differential level signal; The utility model provides a kind of optical signal conversion apparatus on this basis, the problem that can't dock because the optical interface type between the equipment is inconsistent in the time of can effectively solving equipment interconnection.
Thinking of the present utility model is that first light signal with an end equipment optical interface converts the LVPECL signal of telecommunication to by a photoelectric conversion module that can dock with it, again the LVPECL signal of telecommunication is sent to another photoelectric conversion module, convert the required light signal of another equipment optical interface to by another photoelectric conversion module then.
Seeing also Fig. 2, is the theory diagram of the utility model optical signal conversion apparatus.Described optical signal conversion apparatus comprises first photoelectric conversion module 210 and second photoelectric conversion module 220 that is electrically connected with it; Be used to realize the butt joint between the optical interface of first equipment 300 and second equipment 400.
Wherein, first photoelectric conversion module 210 receives from the light signal of the optical interface 310 of described first equipment 300 and is converted to the signal of telecommunication, and the described signal of telecommunication is transferred to second photoelectric conversion module 220; Second photoelectric conversion module 200 is to send behind the light signal of optical interface 410 of described second equipment 400 electrical signal conversion that receives.
The utility model can be realized by adopting two GBIC (only limiting the use of in gigabit Ethernet) or SFP photoelectric conversion module.For different photoelectric conversion modules, need to be equipped with different DC power supply and realize, wherein, GBIC adopts 5V galvanic current source, and the SFP photoelectric conversion module adopts 3.3V galvanic current source.During use two GBIC or SFP photoelectric conversion module are docked with the optical interface of two equipment respectively, finish the electrical connection between two GBIC or the SFP photoelectric conversion module again.
GBIC is a kind of gigabit Ethernet photoelectric conversion module.GBIC makes the network technology personnel can dispose and upgrade the gigabit Ethernet optical interface of network system easily.
The SFP photoelectric conversion module is deferred to standard: Small Form-factor Pluggable (SFP) TransceiverMultiSource Agreement (MSA).This standard is the required standard of alliance of following optical module producer: Agilent Technologies, Blaze Network Products, E2O Communications, Inc., ExceLight Communications, Finisar Corporation, Fujikura Technology AmericaCorp., Hitachi Cable, Infineon Technologies Corp., IBM Corp., LucentTechnologies, Molex, Inc., Optical Communication Products, Inc., Picolight, Inc., Stratos Lightwave and Tyco Electronics.
Because the SFP photoelectric conversion module can charged hot plug, can be convenient for changing according to the optical interface type of equipment, butt joint smoothly is so the utility model device can be applied to optical interfaces such as Ethernet, ATM, POS and RPR, as long as change different SFP photoelectric conversion modules.
For the ease of to understanding of the present utility model, be described below in conjunction with embodiment.
Embodiment one
Now be example with the gigabit Ethernet, when the gigabit optical interface of an end equipment is multimode 500m, when the gigabit optical interface of another equipment was single mode 2Km, first photoelectric conversion module of the present utility model adopted the SFP photoelectric conversion module of multimode 500m; Second photoelectric conversion module adopts the SFP photoelectric conversion module of single mode 2Km; Be electrically connected between first photoelectric conversion module and second photoelectric conversion module.During work, with the equipment interconnection of first photoelectric conversion module and multimode 500m optical interface; Equipment interconnection with second photoelectric conversion module and single mode 2Km optical interface; Can realize the smooth intercommunication between the two equipment optical interfaces of different mode, different distance.
Embodiment two
ATM with 155M is an example, when the ATM optical interface of an end equipment is single mode 1550nm wavelength 70Km, arrive another equipment through the extra long distance transmission, and the ATM optical interface of another equipment is when being single mode 1310nm wavelength 2Km, and first photoelectric conversion module of the present utility model adopts the SFP photoelectric conversion module of single mode 1550nm wavelength 70Km; Second photoelectric conversion module adopts the SFP photoelectric conversion module of single mode 1310nm wavelength 2Km; Be electrically connected between first photoelectric conversion module and second photoelectric conversion module.During work, with the equipment interconnection of first photoelectric conversion module and single mode 1550nm wavelength light interface; Equipment interconnection with second photoelectric conversion module and single mode 1310nm wavelength light interface; Can realize being all single mode but smooth intercommunication between the two equipment optical interfaces of different wave length.
What need further specify is, the utility model also can use as a kind of optical signal repeater device, and the recovery of the light signal between the equipment that promptly achieves a butt joint and transmission are to increase the transmission range of light signal.At this moment, the optical interface that first photoelectric conversion module and second photoelectric conversion module adopt can be the same or different, and decides according to the optical interface type of the service of connection devices.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. optical signal conversion apparatus is used to the butt joint between the optical interface of first and second equipment of realizing; It is characterized in that, comprising:
Mutual first photoelectric conversion module and second photoelectric conversion module that is electrically connected;
Wherein, the light signal from the optical interface of described first equipment is sent to second photoelectric conversion module after first photoelectric conversion module is converted to the signal of telecommunication; After receiving the described signal of telecommunication and be converted to light signal, described second photoelectric conversion module is sent to the optical interface of described second equipment.
2. optical signal conversion apparatus according to claim 1 is characterized in that: described first and second photoelectric conversion modules are the hot-swappable photoelectric conversion modules of little encapsulation.
3. optical signal conversion apparatus according to claim 1 is characterized in that: described first and second photoelectric conversion modules are the gigabit photoelectric conversion modules that are applicable to gigabit Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200870887U CN2749185Y (en) | 2004-08-20 | 2004-08-20 | An optical signal converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200870887U CN2749185Y (en) | 2004-08-20 | 2004-08-20 | An optical signal converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2749185Y true CN2749185Y (en) | 2005-12-28 |
Family
ID=35720656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200870887U Expired - Lifetime CN2749185Y (en) | 2004-08-20 | 2004-08-20 | An optical signal converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2749185Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933625A (en) * | 2018-07-27 | 2018-12-04 | 中国核动力研究设计院 | A kind of RS485 electrical/optical signal conversion method and digitlization instrument control platform |
| CN112118047A (en) * | 2020-09-21 | 2020-12-22 | 上海航天科工电器研究院有限公司 | Multi-channel parallel single-multi-mode conversion module |
-
2004
- 2004-08-20 CN CNU2004200870887U patent/CN2749185Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933625A (en) * | 2018-07-27 | 2018-12-04 | 中国核动力研究设计院 | A kind of RS485 electrical/optical signal conversion method and digitlization instrument control platform |
| CN112118047A (en) * | 2020-09-21 | 2020-12-22 | 上海航天科工电器研究院有限公司 | Multi-channel parallel single-multi-mode conversion module |
| CN112118047B (en) * | 2020-09-21 | 2021-06-08 | 上海航天科工电器研究院有限公司 | Multi-channel parallel single-multi-mode conversion module |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140820 Granted publication date: 20051228 |