CN109068198A - A kind of OLT optical module alarming method and apparatus - Google Patents
A kind of OLT optical module alarming method and apparatus Download PDFInfo
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- CN109068198A CN109068198A CN201810863188.0A CN201810863188A CN109068198A CN 109068198 A CN109068198 A CN 109068198A CN 201810863188 A CN201810863188 A CN 201810863188A CN 109068198 A CN109068198 A CN 109068198A
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- 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
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- 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
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- 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
- H04Q2011/0083—Testing; Monitoring
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Abstract
The present invention relates to technical field of photo communication, and in particular to a kind of OLT optical module alarming method and apparatus, method include: that the optical signal for sending ONU end is handled, and are converted to electric signal；Electric signal is received using 10G LA chip and 1G LA chip jointly, whether respective alarm threshold is reached according to signal voltage, two chips export corresponding low level " 0 " or high level " 1 " respectively；Output level " 0 " or " 1 " to 10G LA chip and 1G LA chip carry out suitably logical operation, and optical module is made to export desired level according to operation result, and then realize module alarm.The present invention is based on the alarm functions of 10G LA chip and 1G LA chip itself, it is alerted simultaneously using two chips, logical operation is carried out according to the rule of signal alarm, either 10G is received or 1G is received, OLT optical module can be alerted normally, it solves 10G alarm and 1G alerts incompatible alarm problem, while can also distinguish signal rate by alarm chip.
Description
[technical field]
The present invention relates to technical field of photo communication, and in particular to a kind of OLT optical module alarming method and apparatus.
[background technique]
Requirement with the mankind to network speed is higher and higher, and the market of fiber entering household is increasing.10G-EPON(Ethernet
Passive Optical Network, Ethernet passive optical network) physical structure mainly by multiple ONU (Optiocal
Network Unit, optical network unit), the ODN of OLT (Optical Line Terminal, optical line terminal) and 1:N
(Optical Distribution Network, Optical Distribution Network) composition；Wherein, OLT is installed on console for centralized control, multiple
ONU is installed on customer site, and ODN is set between OLT and each ONU, and ODN includes optical fiber and optical splitter.As shown in Figure 1,
Network structure uses tree topology, and multiple ONU share an optical fibre channel and an optical splitter, can preferably save in this way
Save the cost of installation and maintenance；Wherein, SNI indicates service node interface, and UNI indicates User Network Interface, IFPONIndicate that PON is special
Use interface.With reference to Fig. 1, downlink transfer is known as by the data transmission of OLT to ONU, using broadcast mode, each ONU can be received
To the data sent from OLT, determine whether to receive by verification physical address.It is known as by the data transmission of ONU to OLT
Row transmission, using time division multiple acess access way, each ONU end only sends data in the assigned timeslot that OLT is assigned to, therefore
It is required that the ONU end of 10G-EPON, which has, supports burst type transmitting, the end OLT, which has, supports the received opto-electronic device of burst type.
Burst type reception means that burst type alerts, and compared to traditional continuous alarm, the burst alarm difficulty of OLT is higher,
And the burst alarm performance of OLT optical module directly affects the judgement of the system-level ONU to terminal: should under OLT emergency case
No Light Alarm, and if unglazed under OLT emergency case do not alert, can kick the ONU of opposite end as rogue ONU offline, cause
Opposite end ONU can not work normally, and the system for affecting entire 10G EPON uses.And 10G EPON system and common EPON system
System is different, and for seamless upgrade bandwidth, the 1G of the existing original EPON system of reception of 10G EPON is received, and also has 10G EPON
The 10G of signal is received.Therefore, the end OLT not only needs 10G reception also 1G to be needed to receive.
Currently, typically directly using 10G LA (LimiteAmptifier, limiting amplifier) chip simultaneously to 1G signal and
The alarm of 10G signal is difficult to be compatible with 10G alarm and 1G alarm simultaneously however, the alarm of 10G LA chip is used only.This is because at present
The input electrical signal amplitude of 10G arrives several hundred millivolts tens, and the input electrical signal amplitude of 1G arrives thousands of millivolts tens, if
1G may be made not alert directly alarm threshold is arranged with 10G, will lead to and miss warning information, and then directly affect opposite end
The normal work of ONU.
In consideration of it, overcoming defect present in the above-mentioned prior art is the art urgent problem to be solved.
[summary of the invention]
The technical problem to be solved in the invention is:
In current 10G-EPON OLT optical module, typically directly using 10G LA chip simultaneously to 1G signal and 10G
Signal alarm is difficult to be compatible with 10G alarm and 1G alarm simultaneously, will lead to and miss warning information however, 10G LA chip is used only,
And then directly affect the normal work of opposite end ONU.
The present invention reaches above-mentioned purpose by following technical solution:
In a first aspect, the present invention provides a kind of OLT optical module alarming methods, comprising:
The optical signal that ONU end is sent is handled, and is converted to electric signal；
Electric signal is received using 10G LA chip and 1G LA chip jointly, whether respective announcement is reached according to signal voltage
Alert threshold value, two chips export corresponding low level " 0 " or high level " 1 " respectively；
Output level " 0 " or " 1 " to 10G LA chip and 1G LA chip carry out logical operation, make optical module according to fortune
It calculates result and exports desired level " 0 " or " 1 ", and then realize module alarm.
Preferably, the output level " 0 " to 10G LA chip and 1G LA chip or " 1 " carry out logical operation it
Afterwards, the method also includes: according to 10G LA chip and the respective output level of 1G LA chip, judge the chip of current alarm,
And optical module is made to export judging result.
Preferably, before carrying out optical module alarming, the method also includes: selection 10G LA chip, 1G LA chip with
And the alarm mode of OLT optical module, and the logical operation relationship between two chip output levels is determined according to respective alarm mode；
Wherein, the alarm mode is that SD is alerted or LOS is alerted, when the SD alarm refers to chip or optical module output low level " 0 "
Alarm, the LOS alarm alert when referring to chip or optical module output high level " 1 ".
Second aspect, the present invention also provides the determination methods of logical operation in a kind of alarm of module, for determining first
Logical operation relationship in aspect the method, comprising:
Under 10G signal and 1G signal, core when test is individually alerted using 10G LA chip and 1GLA chip respectively
The alarm power points and alarm clearing power points of piece；
According to test data and the alarm mode of two chips, determined two under unlike signal, different input optical powers respectively
The respective output level of chip " 0 " or " 1 "；
The output level of two chips under identical signal and input optical power is formed into logical character group, determines the optical module phase
It hopes alarm and it is expected corresponding logical character group when alarm clearing；
According to the alarm mode of optical module, the desired output level of optical module " 0 " or " 1 " are determined, and then determine that correspondence is patrolled
Collect the logical operation between character group.
Preferably, the alarm mode of the 10G LA chip, the 1G LA chip and OLT optical module be SD alert or
LOS alarm, the logical calculation method between the logical character group be or operation, with operation, or non-operation and NAND operation
One of, and operation method according to the alarm mode of the 10G LA chip, the 1G LA chip and OLT optical module into
Row selection；Wherein, it is alerted when the SD alarm refers to chip or optical module output low level " 0 ", the LOS alarm refers to chip
Or it is alerted when optical module output high level " 1 ".
Preferably, described when the 10G LA chip, the 1G LA chip and OLT optical module are all made of SD alarm
Inclusive-OR operation is carried out between logical character group；
It is described when the 10G LA chip and the 1G LA chip are alerted using SD, and OLT optical module is using LOS alarm
Negative OR operation is carried out between logical character group；
When the 10G LA chip, the 1G LA chip and OLT optical module are all made of LOS alarm, the logic word
AND operation is carried out between symbol group；
It is described when the 10G LA chip and the 1G LA chip are alerted using LOS, and OLT optical module is using SD alarm
NAND operation is carried out between logical character group.
The third aspect, the present invention also provides a kind of OLT optical module alarming devices, for realizing described in first aspect
OLT optical module alarming method, including 10G LA chip 1,1G LA chip 2 and operation processing unit 3,1 He of 10G LA chip
The 1G LA chip 2 is connected respectively to the input terminal of the operation processing unit 3；The 10G LA chip 1 and the 1G LA
Chip 2 is for receiving electric signal and exporting corresponding low level " 0 " or high level " 1 "；The operation processing unit 3 is used for institute
State 10G LA chip 1 and the 1G LA chip 2 output level " 0 " or " 1 " carry out logical operation, so as to OLT optical module according to
Operation result exports desired level, realizes that module normally alerts.
Preferably, the operation processing unit 3 is MCU, and the MCU is used for the 10G LA chip 1 and the 1G LA
The output level " 0 " of chip 2 or " 1 " carry out logical operation, obtain the level of OLT optical module desired output, and judge current accuse
Alert chip.
Preferably, the operation processing unit 3 is logic gate chip, and the logic gate chip is used for the 10G LA core
The output level " 0 " or " 1 " of piece 1 and the 1G LA chip 2 carry out logical operation, obtain the electricity of OLT optical module desired output
It is flat.
Preferably, the operation processing unit 3 includes logic gate 31 and comparator 32, and the logic gate 31 is used for described
The output level " 0 " or " 1 " of 10G LA chip 1 and the 1G LA chip 2 carry out logical operation, to obtain the OLT optical module phase
The level of output, the comparator 32 is hoped to be used to judge the chip of current alarm.
The beneficial effects of the present invention are:
The present invention provides a kind of OLT optical module alarming method and apparatus, while providing logical operation in alarm method
Determine method, the alarm function based on 10G LA chip and 1G LA chip itself, in the module simultaneously using 10G LA chip and
1G LA chip is alerted, and according to the rule that signal alerts, logical operation process is carried out to signal, so that no matter receiving 10G
Signal or 1G signal OLT optical module can be alerted normally, so that solving 10G alarm and 1G alerts incompatible alarm hardly possible
Topic, while 10G signal or 1G signal can be also distinguished by the chip of alarm.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described.It should be evident that drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of networking diagram of 10G-EPON provided in an embodiment of the present invention；
Fig. 2 is a kind of OLT optical module alarming method flow diagram provided in an embodiment of the present invention；
Fig. 3 is the determination method flow diagram of logical operation in a kind of OLT optical module alarming provided in an embodiment of the present invention；
Fig. 4 is a kind of OLT optical module alarming device figure provided in an embodiment of the present invention；
Fig. 5 is a kind of OLT optical module alarming device figure (operation processing unit MCU) provided in an embodiment of the present invention；
Fig. 6 is that (operation processing unit is logic gate to another kind OLT optical module alarming device figure provided in an embodiment of the present invention
Chip)；
Fig. 7 is that (operation processing unit is logic gate to another kind OLT optical module alarming device figure provided in an embodiment of the present invention
+ comparator).
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, term "inner", "outside", " longitudinal direction ", " transverse direction ", "upper", "lower", "top", "bottom" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention rather than
It is required that the present invention must be constructed and operated in a specific orientation, therefore it is not construed as limitation of the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.Just with reference to drawings and examples, in conjunction with coming, the present invention will be described in detail below.
Embodiment 1:
It is specific as shown in Figure 2 the embodiment of the invention provides a kind of OLT optical module alarming method, comprising the following steps:
Step 201, optical signal ONU end sent is handled, and is converted to electric signal.
In embodiments of the present invention, it is alerted using LA chip, when ONU end has burst type transmitting, the end OLT needs elder generation
Optical signal is subjected to photoelectric conversion, then the electric signal after conversion is delivered to LA chip.
Step 202, electric signal is received using 10G LA chip and 1G LA chip jointly, whether is reached according to signal voltage
Respective alarm threshold, two chips export corresponding low level " 0 " or high level " 1 " respectively.
In traditional alarm scheme, signal alarm typically directly is carried out using 10G LA chip, but due to 1G signal and 10G
The input electrical signal amplitude of signal is different, and alarm power points is also different, is difficult to be compatible with 10G simultaneously using only the alarm of 10G LA chip
Alarm and 1G alarm.In embodiments of the present invention, while two kinds of LA chips are used, two kinds of LA chips can be to be produced on the market
Any money 10G LA chip and 1G LA chip.The alarm threshold of chip is arranged according to product type in advance, for any LA chip
For, the alarm threshold is a reference voltage value reaches the chip when input voltage, which meets, is less than the reference voltage value
Alarm threshold, the alarm of corresponding chip, otherwise chip does not alert.Since input electrical signal is not easy to be quantized, and signal light
Optical power be easier to carry out testing, therefore, in embodiments of the present invention, pass through test two chips optical channel on input
Optical power carrys out regulation alarm point.
According to the working principle of ONU and OLT it is found that the alert mode of signal is gap alarm, therefore can be obtained by test
To the alarm power points and alarm clearing power points of two chips under different rates signal, when input optical power is less than alarm function
Chip alerts when rate point, exports corresponding low level or high level, i.e. logical zero or " 1 "；When input optical power is greater than alarm function
Chip alarm disappears when rate recovery point, exports corresponding high level or low level, i.e. logical one or " 0 ".By respectively to input
After the multilevel iudge of signal, two LA chips respectively export corresponding level, i.e. logical zero or " 1 ".
Step 203, the output level " 0 " to 10G LA chip and 1G LA chip or " 1 " carry out logical operation, make optical mode
Root tuber exports desired level " 0 " or " 1 " according to operation result, and then realizes module alarm.Wherein, under 10G signal, through logic
The expectation alarm result of OLT optical module is consistent with the alarm result of 10G LA chip after operation；Under 1G signal, through logical operation
The expectation alarm result of OLT optical module is consistent with the alarm result of 1G LA chip afterwards.
In embodiments of the present invention, using the two chip alarms of 10G LA chip and 1G LA chip, under 10G signal, phase
Hope 10G LA chip alarm when OLT optical module ability outputting alarm, and only 1G LA chip alert when OLT optical module do not alert；
Under 1G signal, it is expected that 1G LA chip alert when OLT optical module ability outputting alarm, and only 10G LA chip alert when OLT light
Module does not alert.Similarly, under 10G signal, it is expected that OLT optical mode block end alerts when 10G LA chip is alerted and disappeared；?
Under 1G signal, it is expected that OLT optical mode block end alerts when the alarm of 1G LA chip disappears.For the logic of OLT optical module desired output
" 0 " or " 1 " can do logical operation appropriate by the output level to two chips and obtain, so that no matter receiving 10G signal
Still 1G signal is received, OLT optical module can be alerted normally.
A kind of OLT optical module alarming method provided in an embodiment of the present invention is based on 10G LA chip and 1G LA chip itself
Alarm function, in OLT optical module simultaneously alerted using 10G LA chip and 1GLA chip, and according to signal alarm
Rule carries out logical operation process to signal, so that no matter OLT receives 10G signal or 1G signal and can produce accordingly
Alarm alerts incompatible alarm problem with 1G to solve 10G alarm, avoids missing signal alarm.
In embodiments of the present invention, 10G LA chip and 1G LA chip itself all have alarm function, 10G LA chip or
After 1G LA chip generates alarm, by logical operation, OLT optical module exports corresponding alarm signal.Wherein, described in the progress
Before step 201- step 203, the alarm side for choosing 10G LA chip, 1G LA chip and OLT optical module in advance is also needed
Formula, and the logical operation relationship between two chip output levels is determined according to respective alarm mode.It is the 10G LA chip, described
The alarm mode of 1G LA chip and OLT optical module can be SD alarm, be also possible to LOS alarm.If alarm mode is SD
Alarm, then chip or when optical module output low level, alert, and do not alert when exporting high level, i.e., logical zero when alert, and logic
It is not alerted when " 1 "；If alarm mode alerts when being LOS alarm, chip or optical module output high level, when exporting low level
Do not alert, i.e., logical one when alert, and do not alerted when logical zero.
It should be noted that the 10G LA chip and the alarm mode of the 1G LA chip can be identical or not
Together, for example, both can be SD alarm, be perhaps LOS alarm or one of them be SD alarm and another be LOS announcement
It is alert.The alarm mode of OLT optical module can specifically be selected according to the demand of client, if client needs module to export low level
It is alerted when " 0 ", then selects SD to alert；If client needs module to alert when exporting high level " 1 ", LOS is selected to alert.
In embodiments of the present invention, the logical operation can be or operation, with operation, or non-operation and NAND operation
One of, and it is not limited to a certain specific operation, and concrete operation method can be according to the 10G LA chip, the 1G
LA chip and the respective alarm mode of OLT optical module are selected, and are allowed to keep the output of OLT optical module desired after meeting operation
" 0 " or " 1 ".Since the alarm mode of chip is different, customer demand is different, and final desired level is also just different, therefore
Need the logical operation of selection also just different.Selection for logical calculation method specifically refers to embodiment 2.
In conjunction with the embodiment of the present invention, there is also a kind of preferred implementations, in the step 203, in addition to 10G
The output level " 0 " or " 1 " of LA chip and 1G LA chip carry out logical operation, to solve OLT optical module in conventional alarm scheme
It alerts other than difficult problem, it is further comprising the steps of: according to 10G LA chip and the respective output level of 1G LA chip, to sentence
The chip of disconnected current alarm, and export optical module output by judging result.Wherein, logical operation and the judgement of alarm chip
Process can be realized by micro-control unit (Micro ControllerUnit, be abbreviated as MCU).In this way, not only may be used
It realizes that optical module normally alerts, also may recognize that the chip of alarm, and then distinguish the rate of signal by the chip of alarm, sentence
Disconnected is 10G or 1G signal, optimizes scheme more.
Embodiment 2:
On the basis of above-described embodiment 1, the embodiment of the invention also provides logical operations in a kind of alarm of module really
Determine method, for determining the logical operation relationship being related in embodiment 1, such as Fig. 3, specifically includes the following steps:
Step 301, under 10G signal and 1G signal, test individually uses 10G LA chip and 1G LA chip respectively
The alarm power points and alarm clearing power points of chip when alarm；
Step 302, according to test data and the alarm mode of two chips, unlike signal, different input lights are determined respectively
The respective output level of two chips " 0 " or " 1 " under power；
Step 303, the output level of two chips under identical signal and input optical power is formed into logical character group, determined
Corresponding logical character group when optical module expectation alarm and expectation alarm clearing；
Step 304, according to the alarm mode of optical module, the desired output level of optical module " 0 " or " 1 " are determined, and then really
Determine the logical operation between counterlogic character group.
In embodiments of the present invention, the alarm mode of the 10G LA chip, the 1G LA chip and OLT optical module
For SD alarm or LOS alarm, can select to determine in advance respectively；Wherein, the SD alarm refers to that chip or optical module output are low
It alerts when level " 0 ", is not alerted when exporting high level " 1 "；The LOS alarm refers to chip or optical module output high level " 1 "
When alert, export low level " 0 " when do not alert.It should be noted that the alarm of the 10G LA chip and the 1G LA chip
Mode can be the same or different, for example, both can be SD alarm, be perhaps LOS alarm or one of them be SD
Alarm and another for LOS alert.The alarm mode of OLT optical module can specifically be selected according to the demand of client, if objective
Family needs module to alert when exporting low level " 0 ", then selects SD to alert；If client needs module to accuse when exporting high level " 1 "
It is alert, then select LOS to alert.
In the step 304, the logical calculation method between the logical character group can be or operation, with operation or
One of inverse and NAND operation, and operation method is according to the 10G LA chip, the 1G LA chip and OLT
The alarm mode of optical module is selected.Wherein, when the 10G LA chip, the 1G LA chip and OLT optical module are adopted
When being alerted with SD, inclusive-OR operation is carried out between the logical character group；When the 10G LA chip and the 1G LA chip use
SD alarm when OLT optical module is alerted using LOS, carries out negative OR operation between the logical character group；When the 10G LA core
When piece, the 1G LA chip and OLT optical module are all made of LOS alarm, AND operation is carried out between the logical character group；
When the 10G LA chip and the 1G LA chip are alerted using LOS, when OLT optical module is alerted using SD, the logical character
NAND operation is carried out between group.
Power data is just combined below, by the 10G LA chip, the 1G LA chip and OLT optical module using not
It is illustrated with logical calculation method determination when alarm mode: in a specific embodiment, by the step 301
Multiple power test after, obtain power data as shown in Table 1.
Table 1 is the power points test data of difference LA chip and the expected data of OLT optical module under unlike signal.
Six groups of different test datas of #1-#6, the test data under preceding 6 behavior 10G signal, rear 6 row are given in table 1 altogether
For the test data under 1G signal.Wherein, 1G SDA@10G indicates the alarm power points of the 1G LA chip under 10G signal, 10G
SDA@10G indicates that the alarm power points of the 10G LA chip under 10G signal, SDA@10G indicate OLT optical module under 10G signal
It is expected that alerting power points；1G SDD@10G indicates the alarm clearing power points of the 1G LA chip under 10G signal, 10G SDD@
10G indicates that the alarm clearing power points of the 10G LA chip under 10G signal, SDD@10G indicate OLT optical module under 10G signal
It is expected that alarm clearing power points.Similarly, 1G SDA@1G indicates the alarm power points of the 1G LA chip under 1G signal, 10G SDA@
1G indicates that the alarm power points of the 10G LA chip under 1G signal, SDA 1G indicate the alarm that OLT optical module it is expected under 1G signal
Power points；1G SDD@1G indicates that the alarm clearing power points of the 1G LA chip under 1G signal, 10G SDD@1G are indicated in 1G
The alarm clearing power points of 10G LA chip under signal, SDD 1G indicate the alarm clearing function that OLT optical module it is expected under 1G signal
Rate point.
In six groups of data that table 1 provides, with reference to preceding 6 row power Value Data it is found that under 10G signal, 10G LA chip
Alarm power points be respectively less than the alarm power points of 1G LA chip, the alarm clearing power points of 10G LA chip is respectively less than 1G LA
The alarm clearing power points of chip.Similarly, 6 row power Value Datas are it is found that under 1G signal with reference to after, the announcement of 1G LA chip
Alert power points is respectively less than the alarm power points of 10G LA chip, and the alarm clearing power points of 1G LA chip is respectively less than 10G LA core
The alarm clearing power points of piece.Therefore, the police of 10G signal is accused with 10G LA chip than accusing the police of 10G signal with 1G LA chip more
Good, the desired alarm power points of OLT optical module and alarm clearing point are consistent with 10G LA chip at this time；And it is accused with 1G LA chip
The police of 1G signal is more preferable than the police for accusing 1G signal with 10G LA chip, then the desired alarm power points of OLT optical module and alarm are extensive
Complex point is consistent with 1G LA chip.
This sentences for the 10G LA chip, the 1G LA chip and OLT optical module are all made of SD alarm and is said
It is bright, then at this point for two chips and OLT optical module for, export low level " 0 " when no light, chip or optical module alarming；
High level " 1 " is exported when having light, chip or optical module do not alert.Under 10G signal, when the alarm of 10G chip, then optical module phase
It hopes output level " 0 ", so that module alerts；When 10G chip restores to alert, then optical module desired output level is " 1 ", thus
Module terminates to alert.Similarly, under 1G signal, when the alarm of 1G chip, then optical module desired output level " 0 ", thus module
Alarm；When 1G chip restores to alert, then optical module desired output level " 1 ", so that module terminates to alert.Make a concrete analysis of result
As shown in table 2.
Table 2 is two chips with the logical operation relationship that OLT optical module is when SD is alerted.
According to the #1 data in table 1, referring initially to preceding 3 row power Value Data, under 10G signal, the announcement of 10G LA chip
Alert power points is P1The alarm power points of=- 33.6,1G LA chip is P2=-29.4, and P1Less than P2, then light currently entered
Performance number can be there are three types of situation: greater than P2, it is less than P1, and in P1And P2Between.
In conjunction with 3 row preceding in table 2, under 10G signal, it is assumed that current input optical power P is -28, due to P > P1, P > P2, then
10G LA chip does not alert with 1G LA chip, and two chips export high level " 1 ", and formed logical character group " 1,1 ", this
When expectation OLT optical module do not alert, export low level " 1 ", with reference to the 3rd row；
Assuming that current input optical power P is -30, due to P > P1, P < P2, then 10G LA chip does not alert, 1G LA chip
Alarm, two chips export high level " 1 " and low level " 0 " respectively, and form logical character group " 1,0 ", and 10G LA core at this time
Piece does not alert, it is expected that OLT optical module does not also alert, exports high level " 1 ", with reference to the 2nd row；
Assuming that current input optical power P is -35, due to P < P1, P < P2, then 10G LA chip is accused with 1G LA chip
Alert, two chips export low level " 0 ", and form logical character group " 0,0 ", 10G LA chip alerts at this time, it is expected that OLT optical mode
Block alarm, exports low level " 0 ".
Similarly, 7-9 row can refer to for the alarm situation under 1G signal, analytic process is similar to the above, herein
It repeats no more.In the 7th row, the output level of 10G LA chip and 1G LA chip formed logical character group " 0,0 ", it is expected at this time
OLT optical module alarming exports low level " 0 "；In eighth row and the 9th row, the output level of two chips is respectively formed logical character group
" 0,1 " and " 1,1 ", at this time it is expected OLT optical module do not alert, export high level " 1 ".
According to the above analysis, when optical module expectation alarm corresponding logical character group be " 0,0 ", it is corresponding when without alerting
Logical character group is " 1,0 " " 0,1 " and " 1,1 "；Since optical module is alerted using SD, alerts, export when only exporting " 0 "
It is not alerted when " 1 ".Therefore, it is intended that " obtaining " 0 " after 0,0 " progress logical operation, " 1,0 ", " 0,1 " and " 1,1 " progress logic
It is obtained after operation " 1 ", comprehensive descision, only using can reach the result when inclusive-OR operation.It is thus determined that as the 10G LA
When chip, the 1G LA chip and OLT optical module are all made of SD alarm, inclusive-OR operation is carried out between the logical character group.
With continued reference to 4-6 row power Value Data in table 1, in conjunction with 4-6 row in table 2, when alarm clearing, believe in 10G
Under number, the alarm clearing power points of 10G LA chip is P3The alarm clearing power points of=- 32,1G LA chip is P4=-29, and
P3Less than P4.Assuming that input optical power P is -33, P < P at this time3, P < P4, then 10G LA chip does not disappear with the alarm of 1G LA chip
Lose, two chips export low level " 0 ", and formed logical character group " 0,0 ", it is expected that OLT optical module alarming does not restore at this time, it is defeated
Low level " 0 " out；
Assuming that current input optical power P is -31, due to P > P3, P < P4, then 10G LA chip alarm clearing, 1G LA core
Piece alarm does not restore, two chips export high level " 1 " and low level " 0 " respectively, and formed logical character group " 1,0 ", this period
It hopes OLT optical module alarming restore, exports high level " 1 "；
Assuming that current input optical power P is -27, due to P > P3, P > P4, then 10G LA chip is alerted with 1G LA chip
Restore, two chips export high level " 1 ", and formed logical character group " 1,1 ", it is expected that OLT optical module alarming restores at this time, it is defeated
High level " 1 " out.
Similarly, 10-12 row, analytic process and above-mentioned class can refer to for the alarm clearing situation under 1G signal
Seemingly, details are not described herein again.In the 10th row and the 11st row, the output level of 10G LA chip and 1G LA chip is respectively formed logic
Character group " 1,1 " and " 0,1 ", at this time it is expected OLT optical module alarming restore, export high level " 1 "；In the 12nd row, two chips
Output level forms logical character group, and " 0,0 ", expectation OLT optical module alarming does not restore at this time, exports low level " 0 ".
According to the above analysis, optical module it is expected that corresponding logical character group is when alarm clearing " 1,1 ", " 1,0 " and " 0,
1 ", since optical module is alerted using SD, alarm clearing when only exporting " 1 ".Therefore, " 1,0 ", " 0,1 " and " 1,1 " is patrolled
It is obtained " 1 " after collecting operation, comprehensive descision, inclusive-OR operation equally can reach the result.Therefore it further determines that, as the 10G
When LA chip, the 1G LA chip and OLT optical module are all made of SD alarm, "or" fortune is carried out between the logical character group
It calculates.
By above-mentioned logical operation process, either 10G signal is received or 1G signal receives, and OLT optical module can root
Normal alarm is realized according to the alarm result of corresponding chip, so as to avoid the occurrence of signal alerts is missed.
In another specific embodiment, the alarm mode with 1G LA chip, 10G LA chip is SD alarm, OLT
The outputting alarm mode of optical module is for LOS is alerted, then is still that output is low for 1G LA chip and 10G LA chip
Chip alerts when level " 0 "；And for OLT optical module, module alerts when exporting high level " 1 ".So, logic is transported at this time
Calculation needs selection " or non-operation " that can meet the Alerting requirements of OLT optical module, specifically refers to table 3.
Table 3 be two chips be SD alarm and optical module be LOS alarm when logical operation relationship.
Compared to table 2, since the alarm mode of two chips is constant, and the alarm mode of optical module becomes LOS alarm, because
This, " 0 " under corresponding " optical module desired output level " column all becomes " 1 ", and " 1 " all becomes " 0 ", with patrolling in a line
The logical operation collected between character group becomes negative OR operation.For example, " 0 or non-zero " operation obtains " 1 " in the 1st row, the 2nd, in 3 rows,
" 1 or non-zero " operation obtains " 0 ", " 1 or non-1 " operation obtain " 0 ", and so on other rows, and then make OLT optical module export the phase
The level of prestige.
In other embodiments, the alarm mode of also changeable 10G LA chip and 1G LA chip, than as shown in table 4,
The 10G LA chip and the 1G LA chip are alerted using LOS, when OLT optical module is alerted using SD, by patrolling known to analysis
Collecting needs to carry out NAND operation between character group；For another example shown in table 5, the 10G LA chip, the 1G LA chip and
When OLT optical module is all made of LOS alarm, AND operation is carried out by needing between logical character group known to analysis, to make OLT light
Module exports desired level.Concrete principle and process are same as above, and details are not described herein again.No matter which kind of alarm mode mutual is taken
It is combined and finally using which kind of logical calculation method, finally may make that either 10G signal receives or 1G signal connects
It receives, the effect normally alerted can be achieved in OLT optical module.
Table 4 be two chips be LOS alarm and optical module be SD alarm when logical operation relationship.
Table 5 is two chips with the logical operation relationship that OLT optical module is when LOS is alerted.
Embodiment 3:
On the basis of above-described embodiment 1 and embodiment 2, the embodiment of the invention also provides a kind of OLT optical module alarmings
Device can be used for realizing embodiment 1 and OLT optical module alarming method as described in example 2.Such as Fig. 4, alarm device includes 10G
LA chip 1,1G LA chip 2 and operation processing unit 3, the 10G LA chip 1 and the 1G LA chip 2 are connected respectively to institute
State the input terminal of operation processing unit 3；The 10G LA chip 1 and the 1G LA chip 2 for receiving electric signal, and according to
Whether signal voltage, which meets corresponding alarm threshold, exports corresponding low level " 0 " or high level " 1 "；The operation processing unit
3 for carrying out logical operation to the output level " 0 " of the 10G LA chip 1 and the 1G LA chip 2 or " 1 ", so as to OLT
Optical module exports desired level according to operation result, realizes that module normally alerts.
In a kind of OLT optical module alarming device provided in an embodiment of the present invention, 10G LA is used simultaneously in OLT optical module
Chip and 1G LA chip are alerted, and the rule alerted according to signal, the alarm using MCU or logic gate to two chips
Signal carries out logical operation process, and normal alarm can be achieved so that no matter OLT receives 10G signal or 1G signal, thus
It solves 10G alarm and 1G in OLT optical module and alerts incompatible alarm problem.
In embodiments of the present invention, the 10G LA chip 2 and the 1G LA chip 1 itself all have alarm function, institute
State 10G LA chip 1, the 1G LA chip 2 and after 3 operation of operation processing unit entire OLT optical module alarm
Mode can be SD alarm, be also possible to LOS alarm.If alarm mode is SD alarm, chip or optical module export low electricity
Usually alert, output end does not alert when being high level, i.e., logical zero when alert, and do not alerted when logical one；If alarm side
Formula be LOS alarm, then chip or optical module output high level when alert, output end be low level when do not alert, i.e., logical one when
Alarm, and do not alerted when logical zero.It should be noted that the alarm mode of the 10G LA chip 1 and the 1G LA chip 2
Can be the same or different, for example, both can be SD alarm, be perhaps LOS alarm or one of them for SD alert
And another is LOS alarm；And the alarm mode of OLT optical module can be selected according to the demand of client.
In embodiments of the present invention, the logical operation can be or operation, with operation, or non-operation and NAND operation
One of, and it is not limited to a certain specific operation, concrete operation method can be according to the 10G LA chip 1, the 1G
The alarm mode of LA chip 2 and OLT optical module is selected, and is allowed to make OLT optical module export desired " 0 " after meeting operation
Or " 1 ".Since the alarm mode of chip is different, customer demand is different, and final desired level is also just different, it is therefore desirable to
The logical operation of selection is also just different, specifically refers to the related introduction in embodiment 1 and embodiment 2.
With reference to Fig. 4, in addition to the 10G LA chip 1, the 1G LA chip 2 and the operation processing unit 3, this hair
Complete alarm device further includes front end signal operation processing unit 4 and golden finger 5, the front end signal operation in bright embodiment
The output end of processing unit 4 is connect with the 10G LA chip 1 and the 1G LA chip 2 respectively, the golden finger 5 with it is described
The output end of operation processing unit 3 connects.Wherein, the front end signal operation processing unit 4 is used to send out the ONU end received
The optical signal sent is changed into electric signal, and electric signal is further sent to the 10G LA chip 1 and the 1G LA chip
2；The golden finger 5 is used to receive the processing result of the operation processing unit 3, and processing result is exported to the board of OLT
System, to carry out follow-up signal processing.
With reference to Fig. 5, in a specific embodiment, the operation processing unit 3 can be MCU, by MCU to described
The output level " 0 " or " 1 " of 10G LA chip 1 and the 1G LA chip 2 carry out logical operation, obtain the final OLT optical module phase
Hope the level of output, the MCU that operation result is fed back to the golden finger 5 or is reported to corresponding register in turn.Its
In, the logical operation in MCU can be hardware logic operation, be also possible to software logic operation.On this basis, except progress phase
Other than the logical operation answered, the MCU can also analyze and determine out the chip of current alarm, and then distinguish the rate of alarm signal.
With reference to Fig. 6, in another specific embodiment, the operation processing unit 3 can also be logic gate chip, institute
Logic gate chip is stated for carrying out logic fortune to the output level " 0 " of the 10G LA chip 1 and the 1G LA chip 2 or " 1 "
It calculates, obtains the level that final OLT optical module needs to export.Wherein, the logic gate chip is calculated by hardware logic operation
As a result, and operation result being fed back to the golden finger 5 or is reported to corresponding register.Do not need to alarm chip into
In the case where row judgement, OLT optical module alarming can be realized by the logical gate operations of the logic gate chip, solve tradition side
The compatible problem of alarm in case, compared with the MCU, simple using only logic gate structure, cost is relatively low.
In conjunction with the embodiment of the present invention, there is also a kind of preferred implementation, such as Fig. 7, the operation processing unit 3 includes
Logic gate 31 and comparator 32, the input terminal of the logic gate 31 respectively with the 10G LA chip 1 and the 1G LA chip 2
Connection, the input terminal of the comparator 32 are connect with the 10G LA chip 1 and the 1G LA chip 2 respectively.The logic gate
31, for carrying out logical operation to the output level " 0 " of the 10G LA chip 1 and the 1G LA chip 2 or " 1 ", obtain most
Whole OLT optical module needs the level exported；The comparator 32 is used for according to the 10G LA chip 1 and the 1G LA chip 2
Output level " 0 " or the level of " 1 " and the output of OLT optical module be compared, and then judge the chip of current alarm.
In embodiments of the present invention, pass through the alarm and the operation of the 10G LA chip 1, the 1G LA chip 2
No matter the logical operation of processing unit 3, receive 10G signal or 1G signal, and normal alarm, solution can be achieved in OLT optical module
The 10G that determined alarm and 1G alert incompatible problem；In a preferred approach, the operation processing unit 3 can also be to the core of alarm
Piece is judged, and then distinguishes the rate of signal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of OLT optical module alarming method characterized by comprising
The optical signal that ONU end is sent is handled, and is converted to electric signal；
Electric signal is received using 10G LA chip and 1G LA chip jointly, whether respective alarm threshold is reached according to signal voltage
Value, two chips export corresponding low level " 0 " or high level " 1 " respectively；
Output level " 0 " or " 1 " to 10G LA chip and 1G LA chip carry out logical operation, make optical module according to operation knot
Fruit exports desired level " 0 " or " 1 ", and then realizes module alarm.
2. OLT optical module alarming method according to claim 1, which is characterized in that described to 10G LA chip and 1G
After the output level " 0 " of LA chip or " 1 " carry out logical operation, the method also includes: according to 10G LA chip and 1G LA
The respective output level of chip, judges the chip of current alarm, and optical module is made to export judging result.
3. OLT optical module alarming method according to claim 1, which is characterized in that before carrying out optical module alarming, institute
State method further include: the alarm mode of selection 10G LA chip, 1G LA chip and OLT optical module, and according to respective alarm
Mode determines the logical operation relationship between two chip output levels；Wherein, the alarm mode is that SD is alerted or LOS is alerted, institute
It states when SD alarm refers to chip or optical module output low level " 0 " and alerts, the LOS alarm refers to that chip or optical module output are high
It is alerted when level " 1 ".
4. a kind of determination method of logical operation in module alarm characterized by comprising
Under 10G signal and 1G signal, chip when test is individually alerted using 10G LA chip and 1G LA chip respectively
Alert power points and alarm clearing power points；
According to test data and the alarm mode of two chips, two chips under unlike signal, different input optical powers are determined respectively
Respective output level " 0 " or " 1 "；
The output level of two chips under identical signal and input optical power is formed into logical character group, determines that optical module expectation is accused
Corresponding logical character group when alert and expectation alarm clearing；
According to the alarm mode of optical module, the desired output level of optical module " 0 " or " 1 " are determined, and then determine counterlogic word
Logical operation between symbol group.
5. the determination method of logical operation in module alarm according to claim 4, which is characterized in that the 10G LA core
The alarm mode of piece, the 1G LA chip and OLT optical module is that SD is alerted or LOS is alerted, between the logical character group
Logical calculation method be or operation, one of with operation, or non-operation and NAND operation, and operation method is according to
The alarm mode of 10G LA chip, the 1G LA chip and OLT optical module is selected；Wherein, the SD alarm refers to core
It is alerted when piece or optical module output low level " 0 ", the LOS alarm alerts when referring to chip or optical module output high level " 1 ".
6. the determination method of logical operation in module alarm according to claim 5, which is characterized in that as the 10G LA
When chip, the 1G LA chip and OLT optical module are all made of SD alarm, inclusive-OR operation is carried out between the logical character group；
When the 10G LA chip and the 1G LA chip are alerted using SD, when OLT optical module is alerted using LOS, the logic
Negative OR operation is carried out between character group；
When the 10G LA chip, the 1G LA chip and OLT optical module are all made of LOS alarm, the logical character group
Between carry out AND operation；
When the 10G LA chip and the 1G LA chip are alerted using LOS, when OLT optical module is alerted using SD, the logic
NAND operation is carried out between character group.
7. a kind of OLT optical module alarming device, which is characterized in that at 10G LA chip (1), 1G LA chip (2) and operation
It manages unit (3), the 10G LA chip (1) and the 1G LA chip (2) are connected respectively to the operation processing unit (3)
Input terminal；The 10G LA chip (1) and the 1G LA chip (2) are for receiving electric signal and exporting corresponding low level " 0 "
Or high level " 1 "；The operation processing unit (3) is used for the defeated of the 10G LA chip (1) and the 1G LA chip (2)
Level " 0 " or " 1 " carry out logical operation out, so that OLT optical module exports desired level according to operation result, are realizing module just
Often alarm.
8. OLT optical module alarming device according to claim 7, which is characterized in that the operation processing unit (3) is
MCU, the MCU are for patrolling the output level " 0 " of the 10G LA chip (1) and the 1G LA chip (2) or " 1 "
Operation is collected, obtains the level of OLT optical module desired output, and judge the chip of current alarm.
9. OLT optical module alarming device according to claim 7, which is characterized in that the operation processing unit (3) is to patrol
Door chip is collected, the logic gate chip is used for the output level " 0 " to the 10G LA chip (1) and the 1G LA chip (2)
Or " 1 " carries out logical operation, obtains the level of OLT optical module desired output.
10. OLT optical module alarming device according to claim 7, which is characterized in that operation processing unit (3) packet
Logic gate (31) and comparator (32) are included, the logic gate (31) is used for the 10G LA chip (1) and the 1G LA chip
(2) output level " 0 " or " 1 " carries out logical operation, to obtain the level of OLT optical module desired output, the comparator
(32) for judging the chip of current alarm.
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| CN201810863188.0A CN109068198A (en) | 2018-08-01 | 2018-08-01 | A kind of OLT optical module alarming method and apparatus |
| PCT/CN2018/123320 WO2020024542A1 (en) | 2018-08-01 | 2018-12-25 | Olt optical module alarm method and device |
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|---|---|---|---|---|
| WO2020024542A1 (en) * | 2018-08-01 | 2020-02-06 | 武汉电信器件有限公司 | Olt optical module alarm method and device |
| CN112986804A (en) * | 2021-04-28 | 2021-06-18 | 成都万创科技股份有限公司 | Software implementation method for testing PCBA (printed Circuit Board Assembly) in mass production process based on Android equipment |
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| CN202256782U (en) * | 2011-06-03 | 2012-05-30 | 深圳思达光电通信技术有限公司 | SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module |
| CN205490557U (en) * | 2016-01-21 | 2016-08-17 | 深圳新飞通光电子技术有限公司 | Multichannel light transceiver module that luminous power is lost warning circuit and is contained it is on average received to multichannel |
| CN108111229A (en) * | 2017-12-15 | 2018-06-01 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module receiving circuit and optical module |
Family Cites Families (1)
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| CN109068198A (en) * | 2018-08-01 | 2018-12-21 | 武汉电信器件有限公司 | A kind of OLT optical module alarming method and apparatus |
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- 2018-08-01 CN CN201810863188.0A patent/CN109068198A/en active Pending
- 2018-12-25 WO PCT/CN2018/123320 patent/WO2020024542A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202256782U (en) * | 2011-06-03 | 2012-05-30 | 深圳思达光电通信技术有限公司 | SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module |
| CN205490557U (en) * | 2016-01-21 | 2016-08-17 | 深圳新飞通光电子技术有限公司 | Multichannel light transceiver module that luminous power is lost warning circuit and is contained it is on average received to multichannel |
| CN108111229A (en) * | 2017-12-15 | 2018-06-01 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module receiving circuit and optical module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020024542A1 (en) * | 2018-08-01 | 2020-02-06 | 武汉电信器件有限公司 | Olt optical module alarm method and device |
| CN112986804A (en) * | 2021-04-28 | 2021-06-18 | 成都万创科技股份有限公司 | Software implementation method for testing PCBA (printed Circuit Board Assembly) in mass production process based on Android equipment |
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