CN103716200A - Cassette optical line terminal equipment multiple passive optical fiber network card chip number identification method - Google Patents
Cassette optical line terminal equipment multiple passive optical fiber network card chip number identification method Download PDFInfo
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- CN103716200A CN103716200A CN201310677501.9A CN201310677501A CN103716200A CN 103716200 A CN103716200 A CN 103716200A CN 201310677501 A CN201310677501 A CN 201310677501A CN 103716200 A CN103716200 A CN 103716200A
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Abstract
The invention discloses a cassette optical line terminal equipment multiple passive optical fiber network card chip number identification method. The method includes the following steps:1, the number of slot identification code signals required by the whole backplane is determined; 2, the backplane is designed to make the backplane has an enough space to place a pull-up resistor and/or a pull-down resistor for configuring slot identification code levels and has enough pins to connect a master control board and passive optical fiber network chips; 3, the pull-up resistor and/or the pull-down resistor are set according to the voltage of the backplane to configure different levels for each slot identification code signal; 4, and the passive optical fiber network chips are distinguished through the voltage difference between the slot identification code signals. According to the invention, the purpose of passive optical fiber network chip distinguishing is realized on the backplane of cassette equipment, and advantages of low overall design difficulty, reduced production cost and convenient post-maintenance and preservation can be realized.
Description
Technical field
The present invention relates to a kind of chip identification technology, be specifically related to a kind of chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card.
Background technology
Box-shaped device major part all consists of master control borad, backboard and service card, no matter be in box-shaped device, medium-sized interpolation frame equipment or large-scale interpolation frame, the structure of every kind of main control card, backboard and service card and hardware designs are all duplicate.Adopt this equipment can shorten the cycle of research and development of products, reduced the cost of exploitation, exploitation and the input of buying aspect equipment have been reduced, and can detect easily in-problem part in production and assembly process, the independent wherein in-problem part of changing, does not need whole product all to replace.Along with a large amount of uses of present box-shaped device are on communication apparatus, in order to meet user's demand, present many boxlike optical line terminals (optical line terminal, OLT) on equipment, not to only have a passive optical-fiber network (Passive Optical Network, PON) card, but jointly formed by multi-blocked structure and the identical PON card of hardware, and above same PON card, also may there be several identical PON chips.In the production process of procedure, optimal effect is to distinguish the difference of veneer, accomplishes that all veneers are in full accord, is not only consistent on hardware, also needs to guarantee the consistency of software simultaneously.When if master control need to be carried out control and management to each veneer, so identical veneer just has identical data-link layer address (MAC Address) or identical IP address after initialization, master control just can not be distinguished two identical PON service subcards like this, cause initialized failed or management failure.
In (Fiber to the home) FTTH of present stage design, the OLT that we use is box-shaped device, adopt main control card, backboard, PON card three parts to form, each has two PON cards above equipment simultaneously, master control is by management mouthful (Media Independent Interface, MII) respectively with two PON cards are connected, and realize the object of the initialization and control management of PON card.On hardware, we have only produced a kind of PON card, and each PON card only has a PON chip, in the situation that not increasing software aspect human cost, if two PON card SLOT ID striking resemblances, after initialization, obtain two on all four MAC Address and IP address so, a PON card wherein just can not be worked normally.
When master control manages identical two PON cards, our normal two identical PON cards of differentiation that use have following method at present:
One, the implementation method of first only considering hardware aspect, is consistent on software view:
1, control chip and two or more PON chip are on same veneer:
When the PON chip of master control and other is on same veneer, like this we can be directly the slot identification code of PON chip (SLOT ID) is carried out different upper drop-down, on the SLOT of corresponding chip ID, be configured to different level, each PON chip is had different No. ID, the identical image file of instant use in the process of software initialization, also can carry out initialization by No. ID of setting, can avoid like this clashing after initialization.
2, control chip and remaining business chip be not on a veneer:
If control chip and PON chip be not on same veneer, we can only carry out respectively to the PON chip of each veneer the configuration of SLOT ID, so also can guarantee when polylith PON is stuck in work can not produce conflict.
Two, be secondly to pass through software modification image file, hardware is consistent:
When hardware is all consistent, what we need to do is exactly by the image file of each PON chip enable of software modification, give the different image file of each PON burning chip, so also can realize the control and management of control chip after to the initialization of identical PON chip.
The RM of prior art has following shortcoming:
When we design box-shaped device and have a plurality of identical PON card, first we can not increase master control above PON card at each and realize, and can greatly increase like this cost of product, and not meet the feature of miniaturization; Secondly, if adopt identical software, the just management of the Configuration master control by hardware to PON chip, so get the raw materials ready or production process in all need that original identical PON card is divided into different SLOT ID types and produce separately, and the streamlined operation that is not easy to produce line, and bring extra cost can to maintenance and the preservation in later stage; Again, when we use identical hardware plan, the image file of each PON chip is different so, has all brought the waste of great manpower, and be easy to make mistakes in the burning before producing or debug process.
Summary of the invention
The invention provides a kind of chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card, realize simply and easily the initialization and control management of main control chip to passive optical-fiber network chip, reduce design difficulty, reduce cost.
For achieving the above object, the invention provides a kind of chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card, boxlike optical line terminal equipment comprises:
Main control card;
Some passive optical-fiber network cards, it connects main control card by Media Independent Interface circuit; Each passive optical-fiber network card is provided with one or several passive optical-fiber network chips;
Backboard, it is provided with several connectors, and each connector circuit connects a passive optical-fiber network chip;
Be characterized in, described chip recognition methods comprises following steps:
Step 1, determine and the quantity of the needed slot identification code of whole backboard signal make each passive optical-fiber network chip there is a slot identification code signal;
When step 4, the insertion of passive optical-fiber network card circuit connection backboard or boxlike optical line terminal equipment power on, voltage by each slot identification code signal is different, the corresponding passive optical-fiber network chip connecting of each slot identification code signal is distinguished, and each passive optical-fiber network chip initiation distributes different data-link layer address or IP address.
Above-mentioned steps 1 comprises:
If the passive optical-fiber network card quantity that backboard is provided with is m, the quantity that each passive optical-fiber network card is provided with passive optical-fiber network chip is n, the quantity of the slot identification code signal of each passive optical-fiber network calorie requirement is x, and the number needs of the slot identification code signal of this passive optical-fiber network calorie requirement meets relational expression:
（1）
Get the minimum value of above formula (1) gained x, as the slot identification code number of signals of every passive optical-fiber network calorie requirement;
The slot identification code number of signals of backboard needs is m * x.
The chip recognition methods of the chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card of the present invention and the source fiber optic network card of prior art is compared, its advantage is, the present invention only needs designer on the backboard of box-shaped device, to realize the object of distinguishing each PON chip, and whole design difficulty reduces;
The present invention is in box-shaped device commercialization process, each PON card is duplicate, comprise software and hardware, this has reduced production cost to a great extent, be not only in the design of hardware, unified, to produce melting process simple, the human cost of saving in software burning process in addition and the problem of reliability;
The present invention is after box-shaped device commercialization, maintenance to each PON card is simple, that piece PON card damages any normal PON card that only need to use in stock and just can replace, and does not need software and hardware to make any modification again, facilitates maintenance and the preservation in later stage.
Accompanying drawing explanation
Fig. 1 is the flow chart of the chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card of the present invention;
Fig. 2 is the structural representation of a kind of applicable embodiment of chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card of the present invention.
Embodiment
Below in conjunction with accompanying drawing, further illustrate specific embodiments of the invention.
The chip recognition methods of many passive optical-fiber networks of a kind of boxlike optical line terminal equipment of the present invention card is applicable to boxlike optical line terminal equipment, and this boxlike optical line terminal equipment mainly comprises main control card, some passive optical-fiber network cards and backboard.Some passive optical-fiber network cartoons are crossed Media Independent Interface (MII) circuit and are connected main control card; Each passive optical-fiber network card is provided with one or several passive optical-fiber network chips.Backboard is provided with several connectors, and each connector circuit connects a passive optical-fiber network chip.
As shown in Figure 1, the chip recognition methods of this many passive optical-fiber networks of boxlike optical line terminal equipment card comprises following steps:
Step 1, determine and the quantity of the needed slot identification code of whole backboard (SLOT ID) signal make each passive optical-fiber network (PON) chip there is a slot identification code signal.
If the passive optical-fiber network card quantity that backboard is provided with is m, the quantity that each passive optical-fiber network card is provided with passive optical-fiber network chip is n, the quantity of the slot identification code signal of each passive optical-fiber network calorie requirement is x, and the number needs of the slot identification code signal of this passive optical-fiber network calorie requirement meets relational expression:
Get the minimum value of above formula (1) gained x, can be used as the slot identification code number of signals of every passive optical-fiber network calorie requirement.
The slot identification code number of signals that whole backboard needs is m * x.
The quantity of step 2, the slot identification code signal that needs according to step 1 gained backboard designs back board structure and circuit configuration, make backboard there is sufficient space, can be used for placing pull-up resistor and/or the pull down resistor of configuration slot identification code level, and make the connector on backboard there is enough pin connection master control borad and each passive optical-fiber network chip.
When step 4, the insertion of passive optical-fiber network card circuit connection backboard or boxlike optical line terminal equipment power on, voltage by each slot identification code signal is different, realization is distinguished the corresponding passive optical-fiber network chip connecting of each slot identification code signal, slot identification code corresponding to each passive optical-fiber network chip is number all identical, each passive optical-fiber network chip initiation can obtain different data-link layer address or IP address, and main control chip just can easily be realized the control and management to each PON card and PON chip like this.
As shown in Figure 2, the chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card of the present invention and the embodiment of applicable boxlike optical line terminal equipment thereof are below described.
In the process of design, the SLOT ID signal of PON card is connected to the position corresponding to connector of backboard, guarantee that any PON card inserts two groove positions, left and right on identical position, the definition of SLOT ID signal is the same.If the SLOT ID signal of PON card 1 in Fig. 1 is the B2 pin that is connected to connector XS1, same PON card 2 is just connected to the B2 pin of connector XS2.
Backboard, in the process of initial designs, is just connected to the B2 pin of connector XS1 the GND of backboard, and the B2 pin of connector XS2 needs to be connected to 3.3V by a pull-up resistor, guarantees that SLOT ID signal is high level.At PON card, insert after backboard so, PON card gets the SLOT ID of current groove position PON chip from backboard, so just guaranteed that two PON chips have different SLOT ID signal, thereby guaranteeing has different MAC Address and IP address after initialization completes, and has facilitated main control card control and management to PON card by MII.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (2)
1. a chip recognition methods for many passive optical-fiber networks of boxlike optical line terminal equipment card, boxlike optical line terminal equipment comprises:
Main control card;
Some passive optical-fiber network cards, it connects main control card by Media Independent Interface circuit; Each passive optical-fiber network card is provided with one or several passive optical-fiber network chips;
Backboard, it is provided with several connectors, and each connector circuit connects a passive optical-fiber network chip;
It is characterized in that, described chip recognition methods comprises following steps:
Step 1, determine and the quantity of the needed slot identification code of whole backboard signal make each passive optical-fiber network chip there is a slot identification code signal;
Step 2, according to the quantity design backboard of slot identification code signal, make it to there is sufficient space, for placing pull-up resistor and/or the pull down resistor of configuration slot identification code level, and make the connector on backboard there is enough pin connection master control borad and each passive optical-fiber network chip;
Step 3, according to added voltage swing on backboard, by selecting and arrange pull-up resistor and/or pull down resistor, give the different level of configuration of each slot identification code signal; This level must meet the pin level of slot identification code signal;
When step 4, the insertion of passive optical-fiber network card circuit connection backboard or boxlike optical line terminal equipment power on, voltage by each slot identification code signal is different, the corresponding passive optical-fiber network chip connecting of each slot identification code signal is distinguished, and each passive optical-fiber network chip initiation distributes different data-link layer address or IP address.
2. the chip recognition methods of many passive optical-fiber networks of boxlike optical line terminal equipment card as claimed in claim 1, is characterized in that, described step 1 comprises:
If the passive optical-fiber network card quantity that backboard is provided with is m, the quantity that each passive optical-fiber network card is provided with passive optical-fiber network chip is n, the quantity of the slot identification code signal of each passive optical-fiber network calorie requirement is x, and the number needs of the slot identification code signal of this passive optical-fiber network calorie requirement meets relational expression:
Get the minimum value of above formula (1) gained x, as the slot identification code number of signals of every passive optical-fiber network calorie requirement;
The slot identification code number of signals of backboard needs is m * x.
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| CN201310677501.9A CN103716200A (en) | 2013-12-13 | 2013-12-13 | Cassette optical line terminal equipment multiple passive optical fiber network card chip number identification method |
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| CN201310677501.9A CN103716200A (en) | 2013-12-13 | 2013-12-13 | Cassette optical line terminal equipment multiple passive optical fiber network card chip number identification method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109743413A (en) * | 2019-01-04 | 2019-05-10 | 浪潮商用机器有限公司 | A kind of server node network ip address distribution method, device and server |
| CN112666447A (en) * | 2020-12-18 | 2021-04-16 | 北京航天自动控制研究所 | Plate position identification circuit applied to dual-redundancy framework equipment |
| CN113419124A (en) * | 2021-06-10 | 2021-09-21 | 西安微电子技术研究所 | Static total dose test method and system for satellite-borne microsystem module |
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Application publication date: 20140409 |