CN105263071A - OLT self-adaptive system and method thereof - Google Patents
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Abstract
The invention provides an OLT self-adaptive system and a method thereof. The system comprises a clock unit, multiple optical module units, a PON MAC unit, a CPU unit, a storage unit and a self-adaptive switching unit, wherein the clock unit provides clock signals, the optical module units is used for optical network access, the storage unit is connected with the CPU unit and stores loading program of EPON and GPON; the self-adaptive switching unit is used for resetting the PON MAC unit, determines the work mode, including a GPON work mode and an EPON work mode, of the OLT self-adaptive system, and processes incompatible base pins of the optical module units. According to the work mode determined by the self-adaptive switching unit, the CPU unit adjusts the clock signals of the clock unit, and loads corresponding EPON or GPON loading program from the storage unit to the PON MAC unit. The system and method support the EPON and GPON work mode in the self-adaptive manner, and improves the opening flexibility and maintenance performance.
Description
Technical field
The present invention relates to optical-fiber network technical field, particularly relate to OLT Adaptable System and method thereof that a kind of self adaptation switches GPON mode of operation and EPON mode of operation.
Background technology
In today that PON (PassiveOpticalNetwork, EPON) generally applies, the transmission application of PON has become an indispensable part in family.PON is divided into again GPON (Gigabit-CapablePON, passive optical-fiber network) and EPON (EthernetPassiveOpticalNetwork, Ethernet passive optical network).GPON network and each have their own advantage of EPON network and drawback.Current GPON and EPON is in the state coexisted.
PON system structure forms primarily of the network unit/optical network terminal ONU/ONT (OpticalNetworkUnit/OpticalNetworkTerminal) of the optical line terminal OLT (OpticalLineTerminal) of central office, the optical distribution network ODN (OpticalDistributionNetwork) comprising Passive Optical Components, user side.OLT provides the interface between network side and core net for Access Network, is connected with each ONU by ODN.As the Core Feature equipment of PON system, OLT has concentrated allocated bandwidth, controls each ONU, the function of monitoring, operation maintenance management PON system in real time.ONU provides the interface of user side for Access Network, provides the access of the multi-business flows such as speech, data, video and ODN, by OLT centralized control.
At present, the up-to-date PONMAC chip be used in OLT system supports 16 GPON or 16 EPON ports.But, under EPON and GPON two kinds of mode of operations, in hardware designs and software is all different.In hardware designs, when being operated in EPON pattern, PONMAC chip needs the outside reference clock providing 156.25MHz; Under being operated in GPON pattern, chip needs the outside reference clock providing 155.52MHz.In addition, the pluggable optical module of GPON is different with the part pin definitions of the pluggable optical module of EPON, and namely the pin of two kinds of optical modules is not completely compatible.On software, under GPON and EPON two kinds of mode of operations, the program of PONMAC is different, and the program of PONMAC is that CPU will be loaded in PONMAC by PCIE bus.
At present, a kind of scheme is not yet had to be can be operated in GPON mode of operation and EPON mode of operation adaptively in an OLT system.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of OLT Adaptable System and method thereof, cannot realize the problem of the switching of GPON mode of operation and EPON mode of operation adaptively for solving OLT system in prior art.
For achieving the above object and other relevant objects, the invention provides a kind of OLT Adaptable System, multiple optical module unit, PONMAC unit and CPU element that described OLT Adaptable System comprises to be provided the clock unit of clock signal, access for optical-fiber network, described OLT Adaptable System also comprises: memory cell, be connected to described CPU element, for preserving the loading procedure of EPON and GPON; Self adaptation switch unit, be connected with all described optical module unit, described CPU element and described PONMAC unit respectively, for the described PONMAC unit that resets, judge the mode of operation of described OLT Adaptable System, and process the incompatible pin of optical module unit described in each; Wherein, described mode of operation comprises GPON mode of operation and EPON mode of operation; According to the described mode of operation that described self adaptation switch unit judges, described CPU element adjusts the clock signal of described clock unit, and the loading procedure being loaded into corresponding EPON or GPON from described memory cell is to described PONMAC unit.
In one embodiment of the invention, described memory cell is FLASH chip.
In one embodiment of the invention, according to described mode of operation, the correspondingly loading procedure in described memory cell by clock unit described in I2C bus configuration, and is loaded on described PONMAC unit by PCIE interface by described CPU element.
In one embodiment of the invention, described self adaptation switch unit comprises judgement and controls subelement and multiple analog switch subelement; The quantity of described analog switch subelement is consistent with the quantity of described optical module unit; Described judgement controls subelement, be connected with all described optical module unit, described CPU element, described PONMAC unit and described analog switch unit respectively, for the described PONMAC unit that resets, judge the type of described optical module unit, and assign the control signal processing the incompatible pin of optical module unit described in each; Described analog switch subelement, judges to control subelement with described respectively and a corresponding described optical module unit connects, for realizing the compatibility of corresponding described optical module unit pin according to described control signal.
In one embodiment of the invention, described judgement controls the mode of operation that subelement judges described OLT Adaptable System in accordance with the following steps: the type judging the described optical module unit in described OLT Adaptable System successively; Wherein, described optical module unit comprises EPON optical module and GPON optical module; Judge described mode of operation: if all described optical module unit in place adopt EPON optical module, then described mode of operation is EPON mode of operation; If all described optical module unit in place adopt GPON optical module, then described mode of operation is GPON mode of operation.
In one embodiment of the invention, described judge to control subelement by the A0 that bus reads described optical module unit successively to show in district the value in 11 registers judge the type of described optical module unit: if 01, then represent that described optical module unit is EPON optical module; Otherwise, represent that described optical module unit is GPON optical module.
In one embodiment of the invention, described judgement controls subelement and adopts CPLD, and described analog switch subelement adopts MAX4736 chip; 9th pin of described optical module unit is connected with described MAX4736 chip: under EPON mode of operation, and described control signal is high level, and the 9th pin of described optical module unit is connected with landform by described MAX4736 chip; Under GPON mode of operation, described control signal is low level, and the 9th pin of described optical module unit is communicated with the PON_GPIO_0 of described PONMAC unit by described MAX4736 chip.
In one embodiment of the invention, the 7th pin of described optical module unit is connected with general purpose output pin PON_GPIO_1 and PON_GPIO_2 of described PONMAC unit respectively with the 8th pin.
The invention also discloses a kind of OLT adaptive approach, comprising: step S10, reset PONMAC unit; Step S20, judges the type of all optical module unit successively; Step S30, according to the type determination mode of operation of all described optical module unit in place; Step S40, according to described mode of operation, processes the incompatible pin of described optical module unit; Step S50, by described mode of operation notice CPU element; Step S60, according to described mode of operation, the clock signal of described CPU element configurable clock generator unit, and correspondingly from memory cell, download loading procedure; Step S70, discharges the reset of described PONMAC unit, and described CPU element loads described loading procedure to described PONMAC unit; Step S80, described OLT normally works.
In one embodiment of the invention, in described step S60, when described mode of operation is EPON mode of operation, described CPU element adjustment clock signal is 156.25MHz; When described mode of operation is GPON mode of operation, described CPU element adjustment clock signal is 155.52MHz.
As mentioned above, a kind of OLT Adaptable System of the present invention and method thereof, by increasing the memory cell of preserving EPON and GPON loading procedure; Software and hardware realizes the self adaptation switch unit of EPON mode of operation and the switching of GPON mode of operation.The present invention supports EPON and GPON two kinds of mode of operations on hardware and software, decreases exploitation and managerial cost; Further, the present invention supports EPON mode of operation and GPON mode of operation adaptively, and improve the flexibility of beginning and the ease for maintenance of user, accommodation is also more extensive.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation schematic diagram of a kind of OLT Adaptable System disclosed in the embodiment of the present invention.
Fig. 2 is shown as the circuit design schematic diagram of a kind of OLT Adaptable System disclosed in the embodiment of the present invention.
Fig. 3 is shown as the schematic flow sheet of a kind of OLT adaptive approach disclosed in the embodiment of the present invention.
Element numbers explanation
110 clock units
120 optical module unit
130PONMAC unit
140CPU unit
150 memory cell
160 self adaptation switch units
161 judge to control subelement
162 analog switch subelements
S10 ~ S80 step
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
Refer to accompanying drawing.It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Embodiment 1
Present embodiment discloses a kind of OLT Adaptable System, for adaptive support GPON mode of operation and EPON mode of operation.Wherein, OLT is as the Core Feature equipment of PON system, and it is the interface between network side and core net, is connected with each ONU by ODN.Further, OLT there is concentrated allocated bandwidth, control each ONU, the function of monitoring, operation maintenance management PON system in real time.ONU provides the interface of user side for Access Network, provides the access of the multi-business flows such as speech, data, video and ODN, by OLT centralized control.
As shown in Figure 1, the OLT Adaptable System of the present embodiment comprises: clock unit 110, multiple optical module unit 120, PONMAC unit 130, CPU element 140, memory cell 150 and self adaptation switch unit 160.In order to show conveniently, only depict an optical module unit 120 in FIG.
Clock unit 110, for providing clock signal for whole OLT Adaptable System; It is connected with CPU element 140 and PONMAC unit 130 respectively, and clock unit 110 is configured by CPU element 140 by I2C bus, and clock unit 110 exports the clock frequency of different frequency according to configuration.
Optical module unit 120, optical module unit 120 is one or more, and for the access of optical-fiber network, it is connected with PONMAC unit 130 and self adaptation switch unit 160.
PONMAC unit 130, is connected with clock unit 110, optical module unit 120, CPU element 140 and self adaptation switch unit 160.
CPU element 140, is connected with clock unit 110, PONMAC unit 130, memory cell 150 and self adaptation switch unit 160.
Memory cell 150, is connected to described CPU element 140, for preserving the loading procedure of EPON and GPON.
Self adaptation switch unit 160, be connected with all described optical module unit 120, described CPU element 140 and described PONMAC unit 130 respectively, for the described PONMAC unit that resets, judge the mode of operation of described OLT Adaptable System, and process the incompatible pin of optical module unit 120 described in each; Wherein, described mode of operation comprises GPON mode of operation and EPON mode of operation.
Further, self adaptation switch unit 160 comprises judgement control subelement 161 and multiple analog switch subelement 162; And, the quantity of analog switch subelement 162 and optical module unit 120 one_to_one corresponding.
Judge to control subelement 161, be connected with all optical module unit 120, CPU element 140, PONMAC unit 130 and analog switch unit 162 respectively, for the PONMAC unit that resets, judge the type of optical module unit 120, and assign the control signal of the incompatible pin of each optical module unit 120 of process.Particularly,
Judge to control the mode of operation that subelement 161 judges OLT Adaptable System in accordance with the following steps:
Judge the type of the optical module unit 120 in OLT Adaptable System successively; Wherein, described optical module unit comprises EPON optical module and GPON optical module:
For each optical module unit 120, when first signal MOD_ABS, the MOD_ABS in place of reading optical module unit 120 are low, represent that optical module unit 120 is in place, for representing time high that optical module unit 120 is not in place.When optical module unit is in place, judge that controlling subelement 161 is further advanced by the value that I2C bus reads the 11st register in the A0 table district of optical module unit 120, this register value is the encoding domain of optical module, the value of EPON optical module is 8h01, represent the 8B/10B coding adopted, if the value read is 8h01, judging that control subelement 161 records this optical module unit 120 is EPON optical modules, otherwise recording this optical module unit 120 is GPON optical module, this is because this OLT system can only insert EPON or GPON optical module.
Judge mode of operation: if all optical module unit 120 in place adopt EPON optical module, then mode of operation is EPON mode of operation; If all optical module unit 120 in place adopt GPON optical module, then mode of operation is GPON mode of operation.
Analog switch subelement 162, judges to control subelement 161 with described respectively and a corresponding described optical module unit 120 connects, for realizing the compatibility of corresponding described optical module unit pin according to described control signal.
The circuit of the OLT Adaptable System of the present embodiment is concrete as shown in Figure 2: wherein, U26 is CPU element 140; U1 is memory cell 150, and it adopts FLASH chip, stores two kinds of loading procedures of EPON and GPON simultaneously; U23 is clock unit 110, adopts programmable clock chip; U22 judges to control subelement 161, and it adopts CPLD; U20 is PONMAC unit 130; U24 is optical module unit 120; Such optical module SFP can insert 16 at most, only draws a SFP (SFP (SmallForm-factorPluggable)) in circuit diagram, all with _ signal of n suffix all represents such signal has 16 groups, n=1-16; MAX4736 chip is analog switch subelement 162.
CPU can pass through I2C bus configuration programmable clock chip, and clock chip exports the clock of different frequency according to configuration.
CPU downloads to PONMAC unit by PCIE (PCI-E:PeripheralComponentInterconnect-Express) interface from FLASH chip, normally works after PONMAC unit loading procedure.
Clock cable SCL and the data wire SDA of CPLD are the I2C buses communicated with CPU, the mode of operation of OLT Adaptable System can be reported to CPU.SCL_n with SDA_n of CPLD is the I2C bus communicated with SFP_n.
The signal of 16 SFP optical modules receives CPLD and PONMAC chip respectively.
After system electrification, CPLD reset PONMAC unit, makes it not work always.
First CPLD reads the state of optical module SFP_n, from first optical module SFP_1, when signal MOD_ABS, the MOD_ABS in place that first read SFP_1 are low, represents that optical module is in place, for representing time high that optical module is not in place.When optical module is in place, the I2C bus that is further advanced by CPLD reads the value that optical module A0 shows the 11st register in district, this register value is the encoding domain of optical module, the value of EPON optical module is 8h01, represent the 8B/10B coding adopted, if the value that CPLD reads is 8h01, CPLD, to record this optical module be EPON optical module, otherwise recording this optical module is GPON optical module, this is because this OLT system can only insert EPON or GPON optical module.CPLD reads the state of all optical modules successively.After all optical module states of reading, if all optical modules in place are all EPON optical modules, then judge that this system is as EPON mode of operation, otherwise be GPON mode of operation.
After determining mode of operation, CPLD starts to process the incompatible pin of EPON and GPON optical module.
Table one OLT holds GPON optical module and EPON optical module pin definitions
Table one is that OLT holds GPON optical module and EPON optical module pin definitions, and as can be seen from the table, two kinds of light module package are the same, have 20 pins, wherein have 3 pin definitions to be not identical, is the 7th pin, the 8th pin and the 9th pin in table respectively.Wherein, the 7th pin and the 8th pin, receive on universal input output pin PON_GPIO_1 and PON_GPIO_2 of PONMAC unit 130 respectively, and PONMAC unit 130 can according to program oneself process loaded.9th pin is CPLD holding wire to be processed, and CPLD exports 16 and controls pin CNTL_n, wherein n=1-16, controls 16 analog switch chip MAX4736 respectively, for a road, design principle is described here.
The truth table of table two analog switch MAX4736
Table two is truth tables of analog switch MAX4736, the IN signal of the CNTL signal controlling of CPLD, when system works is in EPON mode of operation, CNTL signal is drawn high by CPLD, 9th pin of optical module is communicated with earth signal by analog switch subelement MAX4736 chip, realizes the exact connect ion of the optical module of EPON.When powering on, CNTL signal defaults to height.When system works is in GPON mode of operation, CNTL signal drags down by CPLD, 9th pin of analog switch subelement MAX4736 chip by optical module and the PON_GPIO_0 signal communication of PONMAC unit 130, by the 9th pin Trigger signal of PONMAC unit controls optical module, realize the exact connect ion of the optical module of GPON.
CPLD is by I2C bus notice CPU simultaneously, the mode of operation of system is informed CPU, CPU selects the loading procedure to PONMAC unit accordingly from FLASH chip, and the output of programmable clock chip is set by I2C bus, under EPON mode of operation, programmable clock chip exports 156.25MHz clock to PONMAC unit 120, and under GPON mode of operation, programmable clock chip exports 155.52MHz clock to PONMAC unit 120.CPU notifies CPLD after configuring programmable clock chip, and CPLD discharges the reset signal of PONMAC, and PONMAC unit starts to start, and CPU loads corresponding program by PCIE bus to PONMAC.Whole system normally works.
In addition, in order to outstanding innovative part of the present invention, the unit not too close with solving technical problem relation proposed by the invention is not introduced in the present embodiment, but this does not show the unit that there is not other in the present embodiment.
Embodiment 2
Present embodiment discloses a kind of OLT adaptive approach, for adaptive support GPON mode of operation and EPON mode of operation.Wherein, OLT is as the Core Feature equipment of PON system, and it is the interface between network side and core net, is connected with each ONU by ODN.Further, OLT there is concentrated allocated bandwidth, control each ONU, the function of monitoring, operation maintenance management PON system in real time.ONU provides the interface of user side for Access Network, provides the access of the multi-business flows such as speech, data, video and ODN, by OLT centralized control.
As shown in Figure 3, the OLT adaptive approach of the present embodiment comprises:
Step S10, reset PONMAC unit:
After system electrification, CPLD reset PONMAC unit, makes it not work always.
Step S20, judges the type of all optical module unit successively:
First CPLD reads the state of optical module SFP_n, from first optical module SFP_1, when signal MOD_ABS, the MOD_ABS in place that first read SFP_1 are low, represents that optical module is in place, for representing time high that optical module is not in place.When optical module is in place, the I2C bus that is further advanced by CPLD reads the value that optical module A0 shows the 11st register in district, this register value is the encoding domain of optical module, the value of EPON optical module is 8h01, represent the 8B/10B coding adopted, if the value that CPLD reads is 8h01, CPLD, to record this optical module be EPON optical module, otherwise to record this optical module be GPON optical module.
Step S30, the type determination mode of operation according to all described optical module unit in place:
CPLD reads the state of all optical modules successively.After all optical module states of reading, if all optical modules in place are all EPON optical modules, then judge that this system is as EPON mode of operation, otherwise be GPON mode of operation.
Step S40, according to described mode of operation, processes the incompatible pin of described optical module unit:
In the present embodiment, for the 7th pin and the 8th pin of optical module, it received on universal input output pin PON_GPIO_1 and PON_GPIO_2 of PONMAC unit respectively, PONMAC unit 130 can process according to loading procedure oneself.
For the 9th pin of optical module, it is connected with MAX4736 chip, the IN signal of the CNTL signal controlling of CPLD, when system works is in EPON mode of operation, CNTL signal is drawn high by CPLD, 9th pin of optical module is communicated with earth signal by MAX4736 chip, realizes the exact connect ion of the optical module of EPON.When powering on, CNTL signal defaults to height.When system works is in GPON mode of operation, CNTL signal drags down by CPLD, 9th pin of MAX4736 chip by optical module and the PON_GPIO_0 signal communication of PONMAC unit 130, by the 9th pin Trigger signal of PONMAC unit controls optical module, realize the exact connect ion of the optical module of GPON.
Step S50, by described mode of operation notice CPU element: CPLD by I2C bus notice CPU.
Step S60, according to described mode of operation, the clock signal of described CPU element configurable clock generator unit, and correspondingly from memory cell, download loading procedure:
CPU selects the loading procedure to PONMAC unit according to mode of operation from FLASH chip, and arranges the output of programmable clock chip by I2C bus.That is, under EPON mode of operation, programmable clock chip exports 156.25MHz clock to PONMAC unit 120, and under GPON mode of operation, programmable clock chip exports 155.52MHz clock to PONMAC unit 120.CPU notifies CPLD after configuring programmable clock chip
Step S70, discharges the reset of described PONMAC unit, and described CPU element loads described loading procedure to described PONMAC unit;
Step S80, described OLT normally works.
It should be noted that, above the step of various method divide, just in order to be described clearly, a step can be merged into when realizing or some step is split, be decomposed into multiple step, as long as comprise identical logical relation, all in the protection range of this patent; To adding inessential amendment in algorithm or in flow process or introducing inessential design, but the core design not changing its algorithm and flow process is all in the protection range of this patent.
Be not difficult to find, the present embodiment is embodiment of the method corresponding to those in the first embodiment, and the present embodiment can be worked in coordination with the first embodiment and be implemented.The relevant technical details mentioned in first embodiment is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in the present embodiment also can be applicable in the first embodiment.
In sum, a kind of OLT Adaptable System of the present invention and method thereof, by increasing the memory cell of preserving EPON and GPON loading procedure; Software and hardware realizes the self adaptation switch unit of EPON mode of operation and the switching of GPON mode of operation.The present invention supports EPON and GPON two kinds of mode of operations on hardware and software, decreases exploitation and managerial cost; Further, the present invention supports EPON mode of operation and GPON mode of operation adaptively, and improve the flexibility of beginning and the ease for maintenance of user, accommodation is also more extensive.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. an OLT Adaptable System, multiple optical module unit, PONMAC unit and CPU element that described OLT Adaptable System comprises to be provided the clock unit of clock signal, access for optical-fiber network, it is characterized in that, described OLT Adaptable System also comprises:
Memory cell, is connected to described CPU element, for preserving the loading procedure of EPON and GPON;
Self adaptation switch unit, be connected with all described optical module unit, described CPU element and described PONMAC unit respectively, for the described PONMAC unit that resets, judge the mode of operation of described OLT Adaptable System, and process the incompatible pin of optical module unit described in each; Wherein, described mode of operation comprises GPON mode of operation and EPON mode of operation;
According to the described mode of operation that described self adaptation switch unit judges, described CPU element adjusts the clock signal of described clock unit, and the loading procedure being loaded into corresponding EPON or GPON from described memory cell is to described PONMAC unit.
2. OLT Adaptable System according to claim 1, is characterized in that: described memory cell is FLASH chip.
3. OLT Adaptable System according to claim 1, it is characterized in that: according to described mode of operation, correspondingly loading procedure in described memory cell by clock unit described in I2C bus configuration, and is loaded on described PONMAC unit by PCIE interface by described CPU element.
4. OLT Adaptable System according to claim 1, is characterized in that: described self adaptation switch unit comprises judgement and controls subelement and multiple analog switch subelement; The quantity of described analog switch subelement is consistent with the quantity of described optical module unit;
Described judgement controls subelement, be connected with all described optical module unit, described CPU element, described PONMAC unit and described analog switch unit respectively, for the described PONMAC unit that resets, judge the type of described optical module unit, and assign the control signal processing the incompatible pin of optical module unit described in each;
Described analog switch subelement, judges to control subelement with described respectively and a corresponding described optical module unit connects, for realizing the compatibility of corresponding described optical module unit pin according to described control signal.
5. OLT Adaptable System according to claim 4, is characterized in that: described judgement controls the mode of operation that subelement judges described OLT Adaptable System in accordance with the following steps:
Judge the type of the described optical module unit in described OLT Adaptable System successively; Wherein, described optical module unit comprises EPON optical module and GPON optical module;
Judge described mode of operation: if all described optical module unit in place adopt EPON optical module, then described mode of operation is EPON mode of operation; If all described optical module unit in place adopt GPON optical module, then described mode of operation is GPON mode of operation.
6. OLT Adaptable System according to claim 4, it is characterized in that: described judge to control subelement by the A0 that bus reads described optical module unit successively to show in district the value in 11 registers judge the type of described optical module unit: if 01, then represent that described optical module unit is EPON optical module; Otherwise, represent that described optical module unit is GPON optical module.
7. OLT Adaptable System according to claim 4, is characterized in that: described judgement controls subelement and adopts CPLD, and described analog switch subelement adopts MAX4736 chip; 9th pin of described optical module unit is connected with described MAX4736 chip:
Under EPON mode of operation, described control signal is high level, and the 9th pin of described optical module unit is connected with landform by described MAX4736 chip;
Under GPON mode of operation, described control signal is low level, and the 9th pin of described optical module unit is communicated with the PON_GPIO_0 of described PONMAC unit by described MAX4736 chip.
8. OLT Adaptable System according to claim 7, is characterized in that: the 7th pin of described optical module unit is connected with general purpose output pin PON_GPIO_1 and PON_GPIO_2 of described PONMAC unit respectively with the 8th pin.
9. an OLT adaptive approach, is characterized in that: comprising:
Step S10, reset PONMAC unit;
Step S20, judges the type of all optical module unit successively;
Step S30, according to the type determination mode of operation of all described optical module unit in place;
Step S40, according to described mode of operation, processes the incompatible pin of described optical module unit;
Step S50, by described mode of operation notice CPU element;
Step S60, according to described mode of operation, the clock signal of described CPU element configurable clock generator unit, and correspondingly from memory cell, download loading procedure;
Step S70, discharges the reset of described PONMAC unit, and described CPU element loads described loading procedure to described PONMAC unit;
Step S80, described OLT normally works.
10. OLT adaptive approach according to claim 9, is characterized in that: in described step S60, and when described mode of operation is EPON mode of operation, described CPU element adjustment clock signal is 156.25MHz; When described mode of operation is GPON mode of operation, described CPU element adjustment clock signal is 155.52MHz.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105912494A (en) * | 2016-04-11 | 2016-08-31 | 上海斐讯数据通信技术有限公司 | MIIM bus circuit |
| CN107529100A (en) * | 2016-06-21 | 2017-12-29 | 中兴通讯股份有限公司 | EPON mode switching method and device, passive optical network equipment and system |
| CN108399137A (en) * | 2018-03-07 | 2018-08-14 | 广州芯德通信科技股份有限公司 | I2C switching method of the PON modules based on CPLD |
| CN108449140A (en) * | 2018-01-30 | 2018-08-24 | 国网浙江宁波市鄞州区供电有限公司 | A kind of automatic compatible type PON extension apparatus of GPON and EPON and method |
| CN108540231A (en) * | 2017-12-14 | 2018-09-14 | 武汉电信器件有限公司 | A kind of adaptive OLT optical modules and its control method |
| CN110545494A (en) * | 2018-05-29 | 2019-12-06 | 中兴通讯股份有限公司 | method and device for rapidly switching passive optical network types and related equipment thereof |
| CN110769331A (en) * | 2018-07-27 | 2020-02-07 | 中兴通讯股份有限公司 | Line card, design method, communication control method, device and storage medium |
| CN112262551A (en) * | 2018-06-06 | 2021-01-22 | 日本电信电话株式会社 | Subscriber line terminal station apparatus and band allocation method |
| CN112422178A (en) * | 2020-10-20 | 2021-02-26 | 浪潮思科网络科技有限公司 | Optical module monitoring method, electronic device and storage medium |
| WO2021093505A1 (en) * | 2019-11-13 | 2021-05-20 | 中兴通讯股份有限公司 | Optical line terminal line card and method compatible with pon function |
| CN113382324A (en) * | 2021-08-12 | 2021-09-10 | 武汉西迪特通信技术有限公司 | Method capable of switching GPON and EPON modes and dual-mode OLT head-end equipment |
| CN113596631A (en) * | 2021-07-23 | 2021-11-02 | 上海市共进通信技术有限公司 | Method for realizing PON type automatic switching based on key state change |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105912494A (en) * | 2016-04-11 | 2016-08-31 | 上海斐讯数据通信技术有限公司 | MIIM bus circuit |
| CN107529100A (en) * | 2016-06-21 | 2017-12-29 | 中兴通讯股份有限公司 | EPON mode switching method and device, passive optical network equipment and system |
| CN107529100B (en) * | 2016-06-21 | 2021-11-23 | 中兴通讯股份有限公司 | Passive optical network mode switching method and device, passive optical network equipment and system |
| CN108540231A (en) * | 2017-12-14 | 2018-09-14 | 武汉电信器件有限公司 | A kind of adaptive OLT optical modules and its control method |
| CN108449140A (en) * | 2018-01-30 | 2018-08-24 | 国网浙江宁波市鄞州区供电有限公司 | A kind of automatic compatible type PON extension apparatus of GPON and EPON and method |
| CN108399137A (en) * | 2018-03-07 | 2018-08-14 | 广州芯德通信科技股份有限公司 | I2C switching method of the PON modules based on CPLD |
| CN110545494A (en) * | 2018-05-29 | 2019-12-06 | 中兴通讯股份有限公司 | method and device for rapidly switching passive optical network types and related equipment thereof |
| CN112262551A (en) * | 2018-06-06 | 2021-01-22 | 日本电信电话株式会社 | Subscriber line terminal station apparatus and band allocation method |
| CN110769331A (en) * | 2018-07-27 | 2020-02-07 | 中兴通讯股份有限公司 | Line card, design method, communication control method, device and storage medium |
| CN110769331B (en) * | 2018-07-27 | 2022-03-29 | 中兴通讯股份有限公司 | Line card, design method, communication control method, device and storage medium |
| US11310573B2 (en) * | 2018-07-27 | 2022-04-19 | Zte Corporation | Line card and design method therefor, communication control method and device, and storage medium |
| WO2021093505A1 (en) * | 2019-11-13 | 2021-05-20 | 中兴通讯股份有限公司 | Optical line terminal line card and method compatible with pon function |
| CN112422178A (en) * | 2020-10-20 | 2021-02-26 | 浪潮思科网络科技有限公司 | Optical module monitoring method, electronic device and storage medium |
| CN113596631A (en) * | 2021-07-23 | 2021-11-02 | 上海市共进通信技术有限公司 | Method for realizing PON type automatic switching based on key state change |
| CN113382324A (en) * | 2021-08-12 | 2021-09-10 | 武汉西迪特通信技术有限公司 | Method capable of switching GPON and EPON modes and dual-mode OLT head-end equipment |
| CN113382324B (en) * | 2021-08-12 | 2021-11-23 | 武汉西迪特通信技术有限公司 | Method capable of switching GPON and EPON modes and dual-mode OLT head-end equipment |
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