CN2938584Y - Optical fibre access system of ethernet light modem - Google Patents
Optical fibre access system of ethernet light modem Download PDFInfo
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- CN2938584Y CN2938584Y CNU2006200437902U CN200620043790U CN2938584Y CN 2938584 Y CN2938584 Y CN 2938584Y CN U2006200437902 U CNU2006200437902 U CN U2006200437902U CN 200620043790 U CN200620043790 U CN 200620043790U CN 2938584 Y CN2938584 Y CN 2938584Y
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Abstract
An Ethernet optical modem optical fiber access system comprises an office terminal integrated frame, a remote independent box and an Ethernet optical modem provided in the office terminal integrated frame and the remote independent box; the Ethernet optical modem comprises an circuit-connecting Ethernet physical layer circuit and an Ethernet changeover circuit connected in sequence, a microcontroller circuit for the circuit-connecting Ethernet physical layer circuit and the Ethernet changeover circuit as well as a DIP switch circuit for the circuit-connecting Ethernet changeover circuit. The Ethernet optical modem optical fiber access system provided in the utility model is part of a multi-service optical fiber access system extends the coverage of the TDM (time division multiplexing) private line via an optical fiber using SDH (synchronous digital hierarchy) and optical cable resources, enabling traditional fixed network operators to provide and expand private line services.
Description
Technical field
The utility model relates to a kind of Ethernet optical modem Fiber Access System, relates in particular to the Ethernet optical modem in a kind of multi-service Fiber Access System.
Background technology
The transition of communication network force the network operator to face great challenge.Professional development no longer is confined to simply provide telephone service, faces following problem at least:
1, long-distance user's access: along with the vast development of rural economy of China, some press for communication service away from the rural area, urban.The communication network network operator wishes to provide professional for the long-distance user under the prerequisite of not investing the increase telephone net node.
2, concentrate user's access: along with the fast development in city, newly-built office building, hotel, residential quarters get more and more.These regional characteristics are that the user concentrates, and are urgent to the demand of various telecommunication services.Lay the copper cable investment simultaneously in these zones big, long in time limit.The network operator wishes and can provide professional cheaply fast.
3, the access of integrated service: terminal use's business demand is different, and is more and more to the demand of new business such as data and image.The network operator wishes to provide speech, data and graphic service by unified system synthesis, avoids overlapping construction.
4, the optimization of network: in order to reduce the cost of operation maintenance, the planning trend of present whole communication network is to reduce local switch node number to provide the source node number with other miscellaneous services, enlarges the capacity and the service radius of each node.Simultaneously existing network is also made great efforts to be optimized, and so-called " Ruling out separate offices and interconnecting them within a network ".
Because the demand of variety classes information is more and more, multiple new business demands such as incident ever-increasing IP data, speech, multi-media image, impelled the transmission network environment of each macroreticular operator that earth-shaking variation has taken place, those were traditional metropolitan area network of main purpose and Access Network all can't satisfy diversified new business transmission and handle on capacity and kind of interface requirement with the carrying simulated voice in the past.
Each tame operator constantly strengthens communication service capabilities after listing, make great efforts to improve the service operation maintenance levels.At large-scale enterprises and institutions, carry out stable private line service based on time division multiplexing/Digital Data Net/asynchronous transfer mode (TDM/DDN/ATM) all the time, interface G.703/V35 is provided.Along with opening gradually of telecommunication market, startup carrier is constantly initiated challenge with the new technology based on optical fiber, and traditional private line service is subjected to increasing competitive pressure.Traditional Ethernet 10/100BaseT only supports 100 meters distance, and part is non-standard can support 200 meters, can not satisfy the requirement of long Distance Transmission far away.
Light cat series, converter series, fiber optical transceiver series and PDH (Pseudo-synchronous Digital Hierarchy) (PDH series) equipment are that a kind of data that each big operator generally adopts insert and transmission means at present, low, the less investment of this mode networking cost, and there is multiple mode available, such as: 2M, V35,10/100M Ethernet, 100M optical Ethernet etc., access via telephone line, the big customer who has satisfied the operator inserts, the Internet bar inserts, the access and the transmission that have solved data and voice are inserted or the like in the sub-district.But satisfy the access and the transmission of multiple business, above-mentioned serial equipment is installed respectively, be not easy to administering and maintaining of network operator, also make troubles for the expansion of follow-up business.
Data communications equipment such as router are mainly used the Leased line business of V35 interface bearing N * 64Kbps, are the main flows that narrow band data inserts all the time.But dispose this type of scheme, must control (DXC) resource near synchronous digital hierarchy/asynchronous transfer mode (SDH/ATM) or data cross, otherwise will utilize high-bit-rate digital subscriber line (HDSL) and telephone wire to extend.And Digital Subscriber Line (DSL) and telephone wire are subjected to crosstalking in high-speed transfer easily and the line quality influence.
The utility model content
A kind of Ethernet optical modem Fiber Access System that the utility model provides, it is the part in the multi-service Fiber Access System, mainly utilize SDH (synchronous digital hierarchy) and cable resource, by the coverage of optic fibre extension TDM (time division multiplex system) special line, make traditional fixed network operator can continue to provide and enlarge private line service.
In order to achieve the above object, the utility model provides a kind of Ethernet optical modem Fiber Access System, comprises the centralized frame of local side, far-end stand alone type machine box and is installed in the centralized frame of described local side and the interior Ethernet optical modem of far-end stand alone type machine box;
The centralized frame of described local side comprises power supply and webmaster dish, also is provided with some interfaces and indicator light;
Described far-end stand alone type machine box comprises power supply, also is provided with some interfaces and indicator light;
Power supply in centralized frame of described local side and the far-end stand alone type machine box is described Ethernet optical modem power supply;
Described Ethernet optical modem comprises the ethernet physical layer circuit and the Ethernet change-over circuit of circuit connection successively, also comprises circuit and connects ethernet physical layer circuit and the microcontroller circuit of Ethernet change-over circuit and the DIP switching circuit that circuit is connected the Ethernet change-over circuit;
Described Ethernet optical modem also comprises the ethernet interface circuit that circuit connects described ethernet physical layer circuit, and this ethernet interface circuit connects the Ethernet interface on centralized frame of described local side and the far-end stand alone type machine box;
Described Ethernet optical modem also comprises the optical interface circuit that circuit connects described Ethernet change-over circuit, and this optical interface circuit connects the optical interface on centralized frame of described local side and the far-end stand alone type machine box;
Described ethernet physical layer circuit, provide the 10baseT/100baseT physical layer data to transmit, accept and transmit data by MII (Media Independent Interface) interface, connect physical medium slave module and physical coding sublayer layer function comprising the 10BaseT physical medium.
Described Ethernet change-over circuit is realized the data transaction of 10M/100M Ethernet data to optical interface;
The internal register of described microcontroller circuit management ethernet change-over circuit, outputting alarm indication and collection alarm are communicated by letter with the webmaster dish by UART Universal Asynchronous Receiver Transmitter (UART) interface;
Described DIP switching circuit comprises that some time slots are provided with the DIP switch and some patterns are provided with the DIP switch; Can carry out clock setting to equipment by the DIP switch, time slot setting and framing are provided with etc., by this DIP switching circuit configuration information is sent into too net change-over circuit through the input/output interface of Ethernet change-over circuit acp chip then, thereby control the too mode of operation of net change-over circuit;
Described optical interface circuit directly links to each other with the optical device of TTL (transistor-transistor logic) level, built-in line clock recovery unit, and the optical link by a multiplexing E1 passage and the accessory channel of a 16Kb/s links to each other with the Ethernet change-over circuit;
Described ethernet interface circuit provides the MII interface of standard, support the Ethernet data of 10M/100M speed, support complete/semiduplex mode, Ethernet data is carried out overlength, ultrashort and the wrong packet filtering of CRC (cyclic redundancy check (CRC)), realize address filtering simultaneously, and the data of process are carried out flow control.
A kind of European standard transfer of data optical modem Fiber Access System that the utility model provides, it is the part in the multi-service Fiber Access System, mainly utilize SDH (synchronous digital hierarchy) and cable resource, coverage by optic fibre extension TDM (time division multiplex system) special line, simple installation, be convenient to administering and maintaining of network operator, be convenient to the expansion of follow-up business, make traditional fixed network operator can continue to provide and enlarge private line service.
Description of drawings
Fig. 1 is the structural representation of the Ethernet optical modem in a kind of Ethernet optical modem Fiber Access System of providing of the utility model.
Embodiment
Following according to Fig. 1, specify a kind of better embodiment of the present utility model:
A kind of Ethernet optical modem Fiber Access System comprises the centralized frame of local side, far-end stand alone type machine box and is installed in the centralized frame of described local side and the interior Ethernet optical modem of far-end stand alone type machine box;
The centralized frame of described local side comprises power supply 7 and webmaster dish, also is provided with some interfaces and indicator light;
Described far-end stand alone type machine box comprises power supply 7, also is provided with some interfaces and indicator light;
Described Ethernet optical modem comprises the ethernet physical layer circuit 101 and the Ethernet change-over circuit 102 of circuit connection successively, also comprises circuit and connects ethernet physical layer circuit 101 and the microcontroller circuit 103 of Ethernet change-over circuit 102 and the DIP switching circuit 104 that circuit is connected Ethernet change-over circuit 102;
Described Ethernet optical modem also comprises the ethernet interface circuit 105 that circuit connects described ethernet physical layer circuit 101, and this ethernet interface circuit 105 connects the Ethernet interface on centralized frame of described local side and the far-end stand alone type machine box;
Described Ethernet optical modem also comprises the optical interface circuit 106 that circuit connects described Ethernet change-over circuit 102, and this optical interface circuit 106 connects the optical interface on centralized frame of described local side and the far-end stand alone type machine box;
In the present embodiment, described ethernet physical layer circuit 101 adopts the KS8721B chip, this ethernet physical layer circuit 101 provides the 10baseT/100baseT physical layer data to transmit, accept and transmit data by MII (Media Independent Interface) interface, connect physical medium slave module and physical coding sublayer layer function comprising 10Base T physical medium.
In the present embodiment, described Ethernet change-over circuit 102 adopts the RC7222 chip, and this Ethernet change-over circuit 102 is realized the data transaction of 10M/100M Ethernet data to optical interface;
The internal register of described microcontroller circuit 103 management ethernet change-over circuits 102, outputting alarm indication and collection alarm are communicated by letter with the webmaster dish by UART Universal Asynchronous Receiver Transmitter (UART) interface;
Described DIP switching circuit 104 comprises that some time slots are provided with the DIP switch and some patterns are provided with the DIP switch; Can carry out clock setting to equipment by the DIP switch, time slot setting and framing are provided with etc., by this DIP switching circuit 104 configuration information is sent into too net change-over circuit 102 through the input/output interface of Ethernet change-over circuit 102 acp chips then, thereby control the too mode of operation of net change-over circuit 102;
Described optical interface circuit 106 directly links to each other with the optical device of TTL (transistor-transistor logic) level, built-in line clock recovery unit, the optical link by a multiplexing E1 passage and the accessory channel of a 16Kb/s links to each other with Ethernet change-over circuit 102;
Described ethernet interface circuit 105 provides the MII interface of standard, support the Ethernet data of 10M/100M speed, support complete/semiduplex mode, Ethernet data is carried out overlength, ultrashort and the wrong packet filtering of CRC (cyclic redundancy check (CRC)), realize address filtering simultaneously, and the data of process are carried out flow control.
A kind of European standard transfer of data optical modem Fiber Access System that the utility model provides, it is the part in the multi-service Fiber Access System, mainly utilize SDH (synchronous digital hierarchy) and cable resource, coverage by optic fibre extension TDM (time division multiplex system) special line, simple installation, be convenient to administering and maintaining of network operator, be convenient to the expansion of follow-up business, make traditional fixed network operator can continue to provide and enlarge private line service.
Claims (6)
1. an Ethernet optical modem Fiber Access System is characterized in that, comprises the centralized frame of local side, far-end stand alone type machine box and is installed in the centralized frame of described local side and the interior Ethernet optical modem of far-end stand alone type machine box;
Described Ethernet optical modem comprises the ethernet physical layer circuit (101) and the Ethernet change-over circuit (102) of circuit connection successively,
This Ethernet optical modem also comprises the microcontroller circuit (103) that circuit connects ethernet physical layer circuit (101) and Ethernet change-over circuit (102),
This Ethernet optical modem also comprises DIP switching circuit (104), and this DIP switching circuit (104) circuit connects Ethernet change-over circuit (102).
2. a kind of Ethernet optical modem Fiber Access System as claimed in claim 1 is characterized in that the centralized frame of described local side comprises power supply (7) and webmaster dish, also is provided with some interfaces and indicator light.
3. a kind of Ethernet optical modem Fiber Access System as claimed in claim 1 is characterized in that, described far-end stand alone type machine box comprises power supply (7), also is provided with some interfaces and indicator light.
4. a kind of Ethernet optical modem Fiber Access System as claimed in claim 1 is characterized in that,
Described Ethernet optical modem also comprises the ethernet interface circuit (105) that circuit connects described ethernet physical layer circuit (101),
This ethernet interface circuit (105) connects the Ethernet interface on centralized frame of described local side and the far-end stand alone type machine box.
5. a kind of Ethernet optical modem Fiber Access System as claimed in claim 1 is characterized in that,
Described Ethernet optical modem also comprises the optical interface circuit (106) that circuit connects described Ethernet change-over circuit (102),
This optical interface circuit (106) connects the optical interface on centralized frame of described local side and the far-end stand alone type machine box.
6. a kind of Ethernet optical modem Fiber Access System as claimed in claim 1 is characterized in that, described DIP switching circuit (104) comprises that some time slots are provided with the DIP switch and some patterns are provided with the DIP switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200437902U CN2938584Y (en) | 2006-07-11 | 2006-07-11 | Optical fibre access system of ethernet light modem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200437902U CN2938584Y (en) | 2006-07-11 | 2006-07-11 | Optical fibre access system of ethernet light modem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938584Y true CN2938584Y (en) | 2007-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200437902U Expired - Fee Related CN2938584Y (en) | 2006-07-11 | 2006-07-11 | Optical fibre access system of ethernet light modem |
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| CN (1) | CN2938584Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106425B (en) * | 2006-07-11 | 2011-09-07 | 上海科泰信息技术有限公司 | Optical fiber access system for Ethernet optical model |
| CN108599367A (en) * | 2018-02-13 | 2018-09-28 | 国网江苏省电力有限公司泗洪县供电分公司 | Integrated monitoring system based on Data fusion technique and its monitoring method |
-
2006
- 2006-07-11 CN CNU2006200437902U patent/CN2938584Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106425B (en) * | 2006-07-11 | 2011-09-07 | 上海科泰信息技术有限公司 | Optical fiber access system for Ethernet optical model |
| CN108599367A (en) * | 2018-02-13 | 2018-09-28 | 国网江苏省电力有限公司泗洪县供电分公司 | Integrated monitoring system based on Data fusion technique and its monitoring method |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20070822 Termination date: 20130711 |