CN106357327A - Optical line terminal OLT in EPON system - Google Patents
Optical line terminal OLT in EPON system Download PDFInfo
- Publication number
- CN106357327A CN106357327A CN201610992457.4A CN201610992457A CN106357327A CN 106357327 A CN106357327 A CN 106357327A CN 201610992457 A CN201610992457 A CN 201610992457A CN 106357327 A CN106357327 A CN 106357327A
- Authority
- CN
- China
- Prior art keywords
- epon
- module
- line terminal
- optical line
- protocol module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses an optical line terminal OLT in an EPON system. The optical line terminal OLT comprises an EPON protocol module, a reset part and a power supply part, wherein the EPON protocol module is connected with a 1000M PHY chip through GMII, the 1000M PHY chip is connected to a core network through RJ45, the EPON protocol module is connected with an optical transceiver module through TBI and series/parallel conversion S2060, the optical transceiver module is connected to a passive optical branching device, the EPON protocol module is connected with a 100M PHY chip through MII, and the 100M PHY chip is connected to a main control panel through the RJ45; the EPON protocol module is further connected with a clock circuit module, an RS232 communication interface, a debugging RS232 serial port and a storage module; and the EPON protocol module adopts a PAS5201 chip. According to the optical line terminal OLT, the system is stable to work and relatively convenient to upgrade; and the design of the OLT is simplified, so that the cost is obviously lowered.
Description
Technical field
The present invention relates to epon systems technology field, the optical line terminal olt in more specifically a kind of epon system.
Background technology
Epon is a kind of soft exchange technology of point-to-multipoint (p2mp) topological structure, connects local side using Passive Optical Components
(olt) and remote equipment (onu), connecing of the multiple business such as high-speed data, voice, video can be realized in consolidated network system
Enter, the bandwidth that it can be provided by is much larger than other access technologies existing, there is high bandwidth, low cost, can achieve synthesis industry
The features such as business, safety are good.The introducing of epon system, not only greatly improves commercial user's access speed and integrated service
Ability, and enough quality of services can be provided to ensure.In an epon system, olt is a switch or route
Device, is that a multi-service provides platform again, provides the high-speed interface of access network and core net/Metropolitan Area Network (MAN) upwards, provide downwards one
The pon interface of point-to-multipoint supports wave division multiplex transmission.Olt is the core component of whole epon system, the function of mainly completing
Have: 1. to onu, Ethernet data is sent with broadcast mode；2. initiate and control ranging process, and record ranging information；3. initiate
And control onu power；4. it is onu distribution bandwidth, that is, control onu to send the initial time of data and send window size；6. its
The ethernet feature of its correlation.
Content of the invention
The invention aims to making up the deficiencies in the prior art, provide the optical line terminal in a kind of epon system
olt.
The purpose of the present invention is achieved through the following technical solutions:
A kind of optical line terminal olt in epon system, including epon protocol module, described epon protocol module passes through gmii
Be connected with gigabit phy chip, gigabit phy chip is connected to core net by rj45, epon protocol module pass through tbi, serial/parallel turn
Change s2060 to be connected with optical transceiver module, optical transceiver module connects to passive optical splitter, and epon protocol module passes through mii and hundred
Million phy chips are connected, and 100,000,000 phy chips are connected to master control borad by rj45.
Optical line terminal olt in a kind of described epon system it is characterised in that: also include reset portion and power supply unit
Point.
Optical line terminal olt in a kind of described epon system it is characterised in that: described epon protocol module also connects
It is connected to clock circuit module, rs232 communication interface, debugging rs232 serial ports, memory module and jtag interface.
Optical line terminal olt in a kind of described epon system it is characterised in that: described epon protocol module adopts
Pas5201 chip.
It is an advantage of the current invention that:
The optical line terminal olt of the present invention makes system run all right, easily facilitates upgrading, simplify the design of olt it will be apparent that
Reduce cost.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Referring to accompanying drawing, the optical line terminal olt in a kind of epon system, including epon protocol module 1, described epon assists
View module 1 is connected with gigabit phy chip 3 by gmii 2, and gigabit phy chip 3 is connected to core net by rj45 4, and epon assists
View module 1 passes through tbi 5, serial/parallel conversion s2060 6 is connected with optical transceiver module 7, and optical transceiver module 7 connects and divides to passive light
Road device, epon protocol module 1 is connected with 100,000,000 phy chips 9 by mii 8, and 100,000,000 phy chips 9 are connected to master by rj45 10
Control plate.
Optical line terminal olt in epon system also includes reset portion 11 and power pack 12.
Described epon protocol module is also associated with clock circuit module 13, rs232 communication interface 14, debugging rs232 string
Mouth 15, memory module 16 and jtag interface 17.
Described epon protocol module 1 adopts pas5201 chip.
Claims (4)
1. the optical line terminal olt in a kind of epon system, including epon protocol module it is characterised in that: described epon association
View module is connected with gigabit phy chip by gmii, and gigabit phy chip is connected to core net, epon protocol module by rj45
It is connected with optical transceiver module by tbi, serial/parallel conversion s2060, optical transceiver module connects to passive optical splitter, epon agreement
Module is connected with 100,000,000 phy chips by mii, and 100,000,000 phy chips are connected to master control borad by rj45.
2. the optical line terminal olt in a kind of epon system according to claim 1 it is characterised in that: also include reset
Part and power pack.
3. the optical line terminal olt in a kind of epon system according to claim 1 it is characterised in that: described epon
Protocol module is also associated with clock circuit module, rs232 communication interface, debugging rs232 serial ports, memory module and jtag and connects
Mouthful.
4. the optical line terminal olt in a kind of epon system according to claim 1 it is characterised in that: described epon
Protocol module adopts pas5201 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992457.4A CN106357327A (en) | 2016-11-11 | 2016-11-11 | Optical line terminal OLT in EPON system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992457.4A CN106357327A (en) | 2016-11-11 | 2016-11-11 | Optical line terminal OLT in EPON system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106357327A true CN106357327A (en) | 2017-01-25 |
Family
ID=57861535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610992457.4A Pending CN106357327A (en) | 2016-11-11 | 2016-11-11 | Optical line terminal OLT in EPON system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106357327A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203039834U (en) * | 2012-11-30 | 2013-07-03 | 吴琦 | OLT device for EPON system |
-
2016
- 2016-11-11 CN CN201610992457.4A patent/CN106357327A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203039834U (en) * | 2012-11-30 | 2013-07-03 | 吴琦 | OLT device for EPON system |
Non-Patent Citations (1)
| Title |
|---|
| 曹铮 等: ""基于ARM9的EPON OLT硬件设计与实现"", 《光器件》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170125 |
|
| RJ01 | Rejection of invention patent application after publication |