CN107465461A - The control method of OLT optical modules and the control method and device of device and OLT - Google Patents
The control method of OLT optical modules and the control method and device of device and OLT Download PDFInfo
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- CN107465461A CN107465461A CN201710654779.2A CN201710654779A CN107465461A CN 107465461 A CN107465461 A CN 107465461A CN 201710654779 A CN201710654779 A CN 201710654779A CN 107465461 A CN107465461 A CN 107465461A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0773—Network aspects, e.g. central monitoring of transmission parameters
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Abstract
The embodiment of the present invention provides a kind of control method of OLT optical modules and the control method and device of device and OLT.This method includes：Reference signal is received by I2C pins, electric potential signal is received by the first pin, according to the mapping relations between the reference signal and the electric potential signal, controls the light transmitting of the optical module or received optical power to monitor using the electric potential signal.The control method, a pin using optical module is that the reception to Trigger signals and Disable signals can be achieved, and then the problem of avoiding causing pin to waste using different pin reception Trigger signals and Disable signals respectively, i.e. the present embodiment can save unnecessary pin to be defined as other, and then improve the scalability of optical module.
Description
Technical field
The present embodiments relate to the communication technology, more particularly to a kind of control method of OLT optical modules and device and OLT
Control method and device.
Background technology
Optical Access Network is exactly the network using light as transmission medium, and optical access network is by OLT (Optical Line
Terminal, optical line terminal) and ONU (Optical Network Unit, optical network unit) and ODN (Optical
Distribution Network, Optical Distribution Network) three parts composition.Wherein OLT and ONU is the core of Optical Access Network
Part.OLT optical modules are provided with Trigger signals input pin and Disable signal input pins, wherein Trigger signals are used for
The work of the monitoring chip in optical module is controlled, the monitoring chip is used to monitor the luminous power that optical module receives, Disable letters
Number it is used for the work for controlling laser in optical module.
Fig. 1 is the connection diagram of existing OLT optical modules and main frame, as shown in figure 1, existing OLT optical modules 10, main
The Trigger signals and Disable signals that machine 20 is sent are by the two-way pin (He of Trigger signals input pin 1
Disable signals input pin 2) it is respectively connected to optical module 10.So when the function increase of optical module 10, such as optical module 10
When can receive two-way Trigger signals and two-way Disable signals, the hardware configuration of existing optical module 10 is restricted,
And then influence the Function Extension of optical module 10.
The content of the invention
The embodiment of the present invention provides a kind of control method of OLT optical modules and the control method and device of device and OLT,
To solve because optical module pin is limited, the problem of causing optical module Function Extension to be obstructed.
In a first aspect, the embodiment of the present invention provides a kind of control method of optical line terminal OLT optical module, methods described bag
Include：
Reference signal is received by I2C pins, electric potential signal is received by the first pin, the electric potential signal is
Disable signals replace the signal of change with Trigger signal sequences, have between the reference signal and the electric potential signal
Mapping relations；
According to the mapping relations between the reference signal and the electric potential signal, using described in electric potential signal control
The light transmitting or received optical power monitoring of optical module.
Second aspect, the embodiment of the present invention provide a kind of control device of optical line terminal OLT optical module, the control dress
Put including：
Receiving module, for receiving reference signal by I2C pins, electric potential signal, the electricity are received by the first pin
Position signal is the signal that Disable signals replace change with Trigger signal sequences, the reference signal and the electric potential signal
Between there are mapping relations；
Control module, for according to the mapping relations between the reference signal and the electric potential signal, using the electricity
Position signal controls the light transmitting or received optical power monitoring of the optical module.
The third aspect, the embodiment of the present invention provide a kind of control method of optical line terminal OLT, and methods described includes：
Obtain reference signal corresponding to electric potential signal and the electric potential signal；The reference signal and the electric potential signal it
Between there are mapping relations, the electric potential signal is that Disable signals replace the signal changed with Trigger signal sequences；
Reference signal is sent by I2C pins, the electric potential signal is sent by the first pin.
Fourth aspect, the embodiment of the present invention provide a kind of control device of optical line terminal OLT, the control device bag
Include：
Acquisition module, for obtaining reference signal corresponding to electric potential signal and the electric potential signal；The reference signal with
There are mapping relations, the electric potential signal is that Disable signals replace change with Trigger signal sequences between the electric potential signal
The signal of change；
Sending module, for sending reference signal by I2C pins, the electric potential signal is sent by the first pin.
The control method of OLT optical modules provided in an embodiment of the present invention and the control method and device of device and OLT, control
The reference signal that device processed is sent by I2C pins Receiving Host, the electric potential signal sent by the first pin Receiving Host, and root
According to the mapping relations between reference signal and electric potential signal, light transmitting or received optical power using electric potential signal control optical module
Monitoring.The control method, the use of first pin is that the reception to Trigger signals and Disable signals can be achieved, and then
The problem of avoiding causing pin to waste using different pin reception Trigger signals and Disable signals respectively, i.e. this implementation
Example can save unnecessary pin to be defined as other, and then improve the scalability of optical module.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the connection diagram of existing OLT optical modules and main frame；
Fig. 2 is the schematic flow sheet of the control method embodiment one of OLT optical modules provided by the invention；
Fig. 3 is the application scenario diagram of the control method for the OLT optical modules that the present embodiment one provides；
Fig. 4 is the signaling interaction diagram between OLT the and OLT optical modules that the embodiment of the present invention two provides；
Fig. 5 is the schematic flow sheet of the control method embodiment three of OLT optical modules provided by the invention；
Fig. 6 is the application scenario diagram of the control method for the OLT optical modules that the present embodiment two provides；
Fig. 7 is another schematic flow sheet of the control method for the OLT optical modules that the present embodiment three provides；
Fig. 8 is the structural representation of the control device embodiment one of OLT optical modules provided by the invention；
Fig. 9 is the structural representation of the control device embodiment two of OLT optical modules provided by the invention；
Figure 10 is the structural representation of the control device embodiment three of OLT optical modules provided by the invention；
Figure 11 is the structural representation of OLT provided by the invention control device embodiment one.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, in existing optical access network, the light that ONU to OLT is sent is referred to as upward signal, is that burst is discontinuous
, one of OLT can correspond to multiple ONU, and the light that OLT to ONU is sent is referred to as downstream signal, be continuous light.OLT optical modes
Block 10 is provided with a triggering Trigger signals input pin 1, is sent by the device hardware of pin Receiving Host 20
Trigger signals, for judging this discontinuous optical signal.When Trigger signals produce trailing edge (or rising edge), then
OLT thinks will have ONU to send uplink optical signal, can carry out luminous power sampling and prepare.
There is an enabled Disable signals input pin 2 simultaneously for OLT optical modules 10, the equipment of Receiving Host 20 is hard
The Disable signals that part is sent, referred to as hard Disable.The Disable that OLT can also be issued by I2C pin Receiving Hosts refers to
Order, referred to as soft Disable.Soft or hard Disable can control Disable signals input pin 2 to control the switch of laser.
For example, when Disable signal output pins 2 are high level, then laser is closed, when Disable signals input pin 2 is low electricity
Flat, then laser is opened.
From the foregoing, traditional OLT optical modules, Trigger signals and hard Disable signals are by two-way pin point
Do not access, so when the function increase of optical module, such as optical module can receive double Trigger signals and double Disable believe
Number when received respectively, it is necessary to configure 4 pins, so undoubtedly cause the waste of optical module pin, be unfavorable for the extension of optical module.
The control method of optical module provided in an embodiment of the present invention, reference signal is received by I2C pins, drawn by first
Pin receives the electric potential signal that Disable signals replace change with Trigger signal sequences, and according to reference signal and electric potential signal
Between mapping relations, use electric potential signal control optical module light transmitting or received optical power monitor.That is the light of the present embodiment
Module receives Disable signals and Trigger signals using the first pin, and then saves the pin of optical module, is easy to optical mode
The extension of block.
Technical scheme is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and may be repeated no more for same or analogous concept or process in some embodiments.
Fig. 2 is the schematic flow sheet of the control method embodiment one of OLT optical modules provided by the invention, and Fig. 3 is this implementation
The application scenario diagram of the control method for the OLT optical modules that example one provides.The executive agent of the present embodiment can be optical module 10, tool
Body can be the control device for having in optical module control function, such as controller.As shown in Figures 2 and 3, the light of the present embodiment
Module 10 includes register 120, controller 110, at least one laser 130, at least one monitoring chip 140, I2C pins
150 and first pin 160, the monitoring chip 140 be used to monitor the luminous power that the optical module 10 receives, the present embodiment
Method can include：
S101, reference signal received by I2C pins, electric potential signal is received by the first pin, the electric potential signal is
Disable signals replace the signal of change with Trigger signal sequences, have between the reference signal and the electric potential signal
Mapping relations.
As shown in figure 3, the optical module of the present embodiment include register 120, controller 110, at least one laser 130,
At least one monitoring chip 140, the pin 160 of I2C pins 150 and first, wherein, controller 110 respectively with register 120, swash
Light device 130, monitoring chip 140, the pin 160 of I2C pins 150 and first connect, while optical module 10 passes through the He of I2C pins 150
First pin 160 is connected with main frame 20.Optionally, the optical module 10 of the present embodiment can be connect-disconnect structure, can directly plug
On host 20, with realization and the information exchange of main frame 20.For example, controller 110 can pass through SERDES30
(Serializer, abbreviation serializer) is connected with main frame 20.
The controller of the present embodiment can be written and read operation to register, can write reference signal in register,
The reference signal can also be read from register.
The present embodiment controller can determine main frame according to the reference signal of I2C pins and the electric potential signal of the first pin
What is sent is Trigger signals or Disable signals.
Wherein, Trigger signals are used for the switch for controlling monitoring chip, and Disable signals are used to control opening for laser
Close.
It should be noted that Trigger signals and Disable signals are analog signal, i.e., high low-potential signal, and light
The I2C pins of module are connected with main frame, the control signal sent for Receiving Host.
The reference signal that the present embodiment is sent using the I2C pins come Receiving Host, sent out using the first pin Receiving Host
The electric potential signal sent.Wherein, there is mapping relations, i.e., the corresponding difference of different reference signals between reference signal and electric potential signal
Electric potential signal.After so optical module obtains reference signal, the mapping relations inquired about between reference signal and electric potential signal can be with
Know that the electric potential signal that the first pin receives is Trigger signals or Disable signals.
That is the technical scheme of the present embodiment, can be realized to Trigger signals using an I2C pin and the first pin and
The differentiation of Disable signals, and the I2C pins of optical module are originally connected with main frame, therefore, the present embodiment are using one the
One pin is the reception that Trigger signals and Disable signals can be achieved.It can so avoid connecing using different pins respectively
The problem of receipts Trigger signals and Disable signals cause pin to waste.That is the technical scheme of the present embodiment, can save
Unnecessary pin improves the scalability of optical module to be defined as other.
The electric potential signal of the present embodiment can be the multiple signals such as two paths of signals, three road signals, four road signals, the present embodiment
It is without limitation.For example, when optical module only includes a laser and a monitoring chip, main frame needs all the way
Disable signals control the keying of laser, and the keying of monitoring chip is controlled using Trigger signals all the way.When optical module bag
When including two lasers and two monitoring chips, the Disable signals that main frame needs two-way different control two differences to swash respectively
The keying of light device, the keying of two different monitoring chips is controlled using the different Trigger signals of two-way.
In the present embodiment, reference signal that controller receives from I2C pins is data signal, such as 0,1 signal.Controller
The electric potential signal sent by the first pin Receiving Host replaces the letter of change for Disable signals with Trigger signal sequences
Number.I.e. in the present embodiment, because Disable signals and Trigger signals are electric potential signal, controller cannot be distinguished by first and draw
Electric potential signal on pin is Disable signals or Trigger signals, and therefore, main frame is sent to controller by I2C pins and used
In the reference signal for distinguishing Disable signals and Trigger signals.
It should be noted that Disable signals and Trigger letters can not be received simultaneously on the same time, the first pin
Number, this is due to that Disable signals are used to control the laser in OLT optical modules to light, and Trigger signals are used to detect OLT
The optical signal of the receiving terminal of optical module.In actual use, OLT and ONU uses dialogue mechanism, the laser in OLT optical modules
When device is not luminous, ONU is not received by OLT light, and such ONU will not light to OLT, and the receiving terminal of OLT optical modules does not have
Light from ONU, therefore, Disable signals will not occur with Trigger signals in synchronization in OLT optical modules.I.e. first
The electric potential signal received on pin is that Disable signals replace variable signal with the sequential of Trigger signals, for example, first
In duration, the electric potential signal received on the first pin is Disable signals, in the second duration, the electricity that is received on the first pin
Position signal is Trigger signals.
S102, according to the mapping relations between the reference signal and the electric potential signal, use the electric potential signal control
Make the light transmitting or received optical power monitoring of the optical module.
It should be noted that reflecting between different reference signals and different electric potential signals is pre-saved in controller
Relation is penetrated, for example, when reference signal is " 0 ", its corresponding electric potential signal can be Disable signals.When reference signal is
When " 1 ", corresponding electric potential signal can be Trigger signals, and the present embodiment is not limited to default mapping relations, specific root
According to the function of optical module, and design it needs to be determined that.
Optionally, the mapping relations of the present embodiment can be user be input in controller or controller according to
The function of optical module and user need what is set.
In actual use, controller according to default mapping relations, launch by the light for controlling optical module using electric potential signal
Or the switch of received optical power monitoring, the specifically monitoring chip in the laser switch or optical module in control optical module.Example
Such as, controller receives the reference signal and electric potential signal of main frame transmission, and then, controller determines from default mapping relations
Electric potential signal corresponding to the reference signal, when the electric potential signal is Disable signals, the laser in optical module is controlled to open
Close, when the electric potential signal is Trigger signals, control the switch of the monitoring chip in the optical module.
In a kind of possible implementation of the present embodiment, above-mentioned S102 can specifically include：
Controller reads the reference signal first.
The mapping relations inquired about between reference signal and electric potential signal, and launched using the light of electric potential signal control optical module
Or received optical power monitoring.
In this implementation, main frame sends reference signal at the first moment to optical module, in one section of duration corresponding to the first moment
It is interior to send electric potential signal to optical module, so that the time that reference signal reaches controller with electric potential signal not necessarily overlaps.
And reference signal is instantaneous signal, and electric potential signal has certain duration, therefore, the reference signal that controller will can receive
First save, it is waiting when receiving electric potential signal, then read reference signal.Then, inquire about between reference signal and electric potential signal
Mapping relations, know the particular content of the electric potential signal, then using electric potential signal control the light of the optical module launch or
Received optical power monitors.
Illustrate, it is assumed that in default mapping relations, electric potential signal corresponding to reference signal " 0 " is believed for Disable
Number, electric potential signal corresponding to reference signal " 1 " is Trigger signals.First, controller reads reference signal " 0 ", then inquires about
Mapping relations, it is Disable signals to determine electric potential signal corresponding to the reference signal " 0 ".Then, controller judges the first pin
On electric potential signal current potential, such as when electric potential signal is high level, controller control laser closes laser, makes laser
Device stops luminous.When controller judges the low potential of the electric potential signal on the first pin, controller control laser is opened, and is made
Laser lights.Or when the electric potential signal on the first pin is low level, controller control laser closes laser,
When the high potential of the electric potential signal on the first pin, controller control laser is opened, and laser is lighted.
Similarly, if the reference signal that controller is read is " 1 ", controller inquiry mapping relations, determine that reference signal " 1 " is right
The electric potential signal answered is Trigger signals.Then, controller judges the current potential of the electric potential signal on the first pin, draws when first
When electric potential signal on pin is high potential, controller control monitoring chip is closed, when the electric potential signal on the first pin is low electricity
During position, controller control monitoring chip is opened so that so that monitoring chip is monitored to the luminous power that optical module receives.Or
Person, when the electric potential signal on the first pin is low potential, controller control monitoring chip is closed, the current potential on the first pin
When signal is high potential, controller control monitoring chip is opened.It should be noted that the present embodiment is a kind of example, it is above-mentioned
In mapping relations specific corresponding to relation according to be actually needed setting.
In the present embodiment, different lasers corresponds to different Disable signals, and different monitoring chips is corresponding different
Trigger signals, when the present embodiment includes multiple lasers and multiple monitoring chips, corresponding controller needs to receive master
Machine sends multichannel reference signal.
The control method of OLT optical modules provided in an embodiment of the present invention, controller are sent by I2C pins Receiving Host
Reference signal, the electric potential signal sent by the first pin Receiving Host, then, according between reference signal and electric potential signal
Mapping relations, the light transmitting of optical module or received optical power is controlled to monitor using electric potential signal.The control method, use one
One pin is that the reception to Trigger signals and Disable signals can be achieved, and then avoids receiving using different pins respectively
The problem of Trigger signals and Disable signals cause pin to waste, i.e. the present embodiment can save unnecessary pin so as to
As other definition, and then improve the scalability of optical module.
Fig. 4 is the signaling interaction diagram between OLT the and OLT optical modules that the embodiment of the present invention two provides.In above-described embodiment
On the basis of, the present embodiment refers to the interaction of main frame and optical module, and the main frame belongs to OLT sides.As shown in figure 4,
The method of the present embodiment can include：
S201, main frame obtain reference signal corresponding to electric potential signal and the electric potential signal.
Wherein, there are mapping relations, the electric potential signal is Disable between the reference signal and the electric potential signal
Signal replaces the signal of change with Trigger signal sequences.
S202, main frame send reference signal by I2C pins, and the electric potential signal is sent by the first pin.
Mapping relations between the different reference signals preserved in main frame and different electric potential signals, when main frame is according to pre-
If instruction when sending electric potential signal, the host query mapping relations, obtain reference signal corresponding to the electric potential signal.
Illustrate, it is assumed that default mapping relations include：Electric potential signal corresponding to reference signal " 0 " is believed for Disable
Number, electric potential signal corresponding to the reference signal " 1 " is Trigger signals.It is main when main frame needs to control optical module transmitting light
It is Disable signals that prow, which first obtains the electric potential signal for controlling optical module luminous, then, is inquired about from default mapping relations
Reference signal corresponding to Disable signals is " 0 ".So main frame can obtain reference signal to be sent and electric potential signal.Connect
, main frame sends reference signal " 0 " by I2C pins to optical module, and electric potential signal is sent to optical module by the first pin
" Disable signals ".
Similarly, when main frame needs to know the luminous power that now optical module receives, main frame obtains control optical module first
The electric potential signal being monitored to the luminous power of reception is Trigger signals, and then, main frame is inquired about from default mapping relations
Reference signal corresponding to Trigger signals is " 1 ".So main frame can obtain reference signal to be sent and electric potential signal.Connect
, main frame sends reference signal " 1 " by I2C pins to optical module, and electric potential signal is sent to optical module by the first pin
" Trigger signals ".
S203, optical module receive reference signal by I2C pins, and electric potential signal is received by the first pin.
S204, optical module use the current potential according to the mapping relations between the reference signal and the electric potential signal
Signal controls the light transmitting or received optical power monitoring of the optical module.
When main frame sends reference signal by I2C pins to optical module, optical module is sent out also by I2C pins Receiving Host
The reference signal sent.When main frame sends electric potential signal by the first pin to optical module, optical module connects also by the first pin
Receive the electric potential signal that main frame is sent.
The implementation process of S203 and S204 and above-mentioned S101 and S102 in the present embodiment are essentially identical, with reference to above-mentioned implementation
The description of example, will not be repeated here.
OLT provided in an embodiment of the present invention and OLT optical modules control method, main frame obtain electric potential signal and reference first
Signal, and reference signal is sent to optical module by I2C pins, electric potential signal is sent to optical module by the first pin, so that
Optical module receives reference signal by I2C pins, receives electric potential signal by the first pin, and then realize and only drawing using one
On the premise of pin, the accurate control to optical module is realized.
Fig. 5 is the schematic flow sheet of the control method embodiment three of OLT optical modules provided by the invention, in above-described embodiment
On the basis of, the present embodiment refers to the predeterminable area that controller writes reference signal in register, and obtains preset areas
Domain has process.As shown in figure 5, the method for the present embodiment can include：
S301, the size for determining according to the reference signal predeterminable area.
S302, the address offset according to the size of the predeterminable area control register, obtain the predeterminable area.
It should be noted that controller includes the sampling time, within the sampling time, controller reads reference from register
Signal.Meanwhile first cycle of electric potential signal on pin be far longer than sampling period of controller.
As shown in figure 5, before the present embodiment is in the reference signal write-in register that controller sends main frame, need first
The size of predeterminable area in register is determined, and the user operable area in register allows to redefine, therefore this reality
The predeterminable area for applying example is the user operable area of register.
Specifically, digit of the controller according to reference signal, to determine the size of predeterminable area.For example, work as reference signal
Digit when being 1, predeterminable area can include 1 bit position, and when the digit of reference signal is 2, predeterminable area can be including 2
Individual bit positions, i.e. the digit of reference signal is more, corresponding predeterminable area can with bit positions it is more.For example, work as electric potential signal bag
When including the first Disable signals and the first Trigger signals, the digit of corresponding reference signal is 1, i.e. reference signal " 0 " table
Show the first Disable signals, reference signal " 1 " represents the first Trigger signals, and now predeterminable area can be that 1 bit position is
A reference signal can be deposited.It is assumed that when electric potential signal can be the first Disable signals, the 2nd Disable signals, first
When Trigger signals and the 2nd Trigger signals, the type of electric potential signal is 4, and the digit of corresponding reference signal is 2, i.e., 2
Position reference signal can distinguish four class electric potential signals, and corresponding predeterminable area needs 2 bit positions to preserve 2 reference signals.
Then, controller enters line displacement according to the address of the size control register of predeterminable area, obtains predeterminable area.Example
Such as, predeterminable area includes 2 bit positions, then the address offset of the user operable area of controller control register two, obtains
Predeterminable area.
Wherein, controller can be written and read operation to the predeterminable area, you can be believed with the reference for sending main frame
Number write in the predeterminable area, reference signal can also be read out of this predeterminable area.
S303, the reference signal write in the predeterminable area of the optical mode block register, the predeterminable area belongs to
The user operable area of the register.
After predeterminable area defines, the reference signal of controller Receiving Host transmission, and reference signal write-in is posted
In the predeterminable area of storage.
S304, the reference signal is read from the predeterminable area.
When controller receives the electric potential signal of main frame transmission, controller reads reference from the predeterminable area of register
Signal.Either, for controller when default sampling instant reaches, controller reads reference signal from predeterminable area.Need
Illustrate, accurately corresponding with electric potential signal in order to improve reference signal, then the present embodiment receives current potential letter in controller
Number and reference signal after just start read reference signal, can so avoid from predeterminable area read reference signal for before protect
The reference signal deposited, cause the erroneous judgement to electric potential signal.
S305, the mapping relations inquired about between the reference signal and the electric potential signal, and use the electric potential signal
Control the light transmitting or received optical power monitoring of the optical module.
Then, the mapping relations between controller inquiry reference signal and the electric potential signal, determine that reference signal is corresponding
Electric potential signal, and using the electric potential signal control optical module in laser transmitting light or control optical module in monitoring chip
The luminous power that monitoring optical module receives.
In a kind of possible implementation of the present embodiment, the predeterminable area includes the first bit positions and the 2nd bit
Position, the first bit positions and the 2nd bit positions are used for the reference signal for depositing four kinds of states, the reference of four kinds of states
Electric potential signal corresponding to signal difference is XGPON (X-Gigabit-Capable Passive Optical Networks, abbreviation
The passive multi-plexing light accessing system of a new generation) Disable signals, GPON (Gigabit-Capable Passive Optical
Networks, referred to as passive multi-plexing light accessing system) Disable signals, XGPON Trigger signals and GPON Trigger signals.
Wherein, the XGPON Disable signals are used for the startup and closing for controlling XGPON lasers, the GPON
Disable signals are used for the startup and closing for controlling GPON lasers, and the XGPON Trigger signals are used to control XGPON
The startup and closing of monitoring chip, the GPON Trigger signals are used for the startup and closing for controlling GPON monitoring chips.
Assuming that the optical module of the present embodiment is a kind of new SFP+CPON OLT (Small Form Pluggable+
Passive Optical Network OLT, abbreviation SFP passive optical network optical line terminal) optical module, the optical mode
Block include 9.953G EML (Electroabsorption Modulator Laser, electroabsorption modulator laser) transmitting,
2.488G DFB (Distributed Feedback, distributed Feedback) transmittings, 2.488G are received, 1.24G is received, and collect GPON
OLT (Gigabit Passive Optical Network OLT, abbreviation gigabit passive optical network optical line terminal) and
XGPON OLT functions are in one.
As shown in fig. 6, the SFP+CPON OLT optical modules of the present embodiment include two lasers, respectively GPON lasers
131 and XGPON lasers 132, while including two monitoring chips, respectively GPON monitoring chips 141 and XGPON monitoring chips
142.It is corresponding, electric potential signal corresponding to the optical module be respectively GPON Disable signals, XGPON Disable signals,
GPON Trigger signals and XGPON Trigger signals.In order to be integrated in SFP+ encapsulation and realize each road transmission-receiving function,
GPON Disable signals, XGPON Disable signals, GPON Trigger signals and XGPON Trigger signals share the
One pin accesses.
In the present embodiment, to distinguish above-mentioned 4 kinds of electric potential signals needs the reference signal of four kinds of states, for example, this implementation
Example default mapping relations be：Electric potential signal corresponding to the reference signal " 00 " is XGPON Disable signals, the ginseng
It is GPON Disable signals to examine electric potential signal corresponding to signal " 01 ", and electrical potential information corresponding to the reference signal " 10 " is
XGPON Trigger signals, electric potential signal corresponding to the reference signal " 11 " are GPON Trigger signals.
From the foregoing, to preserve the reference signal of four kinds of states, then predeterminable area at least needs two bit positions.For example,
Predeterminable area includes the first bit positions and the 2nd bit positions, and the first bit positions are used for deposit the reference signal first, institute
The second that the first bit positions are used to deposit the reference signal is stated, as shown in table 1.
Table 1
| Electric potential signal | Register Bit 1 | Register Bit2 |
| XGPON Disable (upper electricity acquiescence) | 0 | 0 |
| XGPON Disable | 0 | 0 |
| GPON Disable | 0 | 1 |
| XGPON Trigger | 1 | 0 |
| GPON Trigger | 1 | 1 |
As shown in table 1, exemplified by SFP+CPON OLT optical modules, during optical module electrifying startup, electric potential signal is defaulted as XGPON
Disable。
When the first bit positions and the 2nd bit positions are 0, corresponding electric potential signal is XGPON Disable signals, should
XGPON Disable signals control the open and close of XGPON lasers.
When the first bit positions are 0, when the 2nd bit positions are 1, corresponding electric potential signal should for GPON Disable signals
GPON Disable signals control the open and close of GPON lasers.
When the first bit positions 1, when the 2nd bit positions are 0, corresponding electric potential signal is XGPON Trigger signals, should
XGPON Trigger signals control the open and close of XGPON receivers.
When the first bit positions and the 2nd bit positions are 1, corresponding electric potential signal is that GPON Trigger signals are effective, should
GPON Trigger signals control the open and close of GPON receivers.
In the alternatively possible implementation of the present embodiment, when the reference signal of four kinds of states of the present embodiment, institute
The first bit positions, the 2nd bit positions and the 3rd bit positions can also be included by stating predeterminable area, the first bit positions as Trigger signals/
The instruction control bit of hard Disable signals, the 2nd bit positions select position, the 3rd bit positions conduct as the function of Disable signals
The function selection position of Trigger signals, as shown in table 2.
Table 2
As shown in table 2, exemplified by SFP+CPON OLT optical modules, during optical module electrifying startup, electric potential signal is defaulted as XGPON
Disable。
When the first bit positions and the 2nd bit positions are 0, corresponding electric potential signal is XGPON Disable signals, should
XGPON Disable signals control the open and close of XGPON lasers.
When the first bit positions are 0, when the 2nd bit positions are 1, corresponding electric potential signal is GPON Disable signals, should
GPON Disable signals control the open and close of GPON lasers.
When the first bit positions 1, when the 3rd bit positions are 0, corresponding electric potential signal is XGPON Trigger signals, should
XGPON Trigger signals control the open and close of XGPON receivers.
When the first bit positions and the 3rd bit positions are 1, corresponding electric potential signal is that GPON Trigger signals are effective, should
GPON Trigger signals control the open and close of GPON receivers.
In order to which the technical scheme of the present embodiment is expanded on further, (Fig. 7 is the OLT light that the present embodiment three provides as shown in Figure 7
Another schematic flow sheet of the control method of module), it is unlatching laser shape in XGPON, GPON soft Disable with reference to table 2
During state, controlling mechanism and sampling process are analyzed：
S401, sampling start, and controller reads Bit1 positions from pre-set interval first.
If S402, Bit1 are " 0 ", continue to read Bit2 positions.
S403, Bit2 are if " 0 ", it is determined that electric potential signal corresponding to reference signal is XGPON Disable signals, is connect
, controller MCU (Micro Control Unit, Chinese are micro-control unit) judges electric potential signal on the first pin
Current potential.
If the current potential of S404, the first pin is low level, MCU output signals control XGPON LDD (Laser Detector
Diode, laser detector diode) open XGPON lasers.
If the current potential of S405, the first pin is high level, MCU output signals control XGPON LDD shut-off XGPON laser
Device.
S406, Bit2 are if " 1 ", it is determined that electric potential signal corresponding to reference signal is GPON Disable signals, and MCU sentences
The current potential of electric potential signal on disconnected first pin.
If the current potential of S407, the first pin is low level, MCU output signals control GPON LDD open GPON lasers.
If the current potential of S408, the first pin is high level, MCU output signals control GPON LDD shut-off GPON lasers.
If S409, Bit1 are " 1 ", continue to read Bit3 positions.
S410, Bit3 are if " 0 ", it is determined that and electric potential signal corresponding to reference signal is XGPON Trigger signals,
After SERDES Trigger signals are sent, MCU judges the current potential of electric potential signal on the first pin.
If the current potential of electric potential signal is low level on S411, the first pin, MCU can be read from the first pin
Trigger signals, the luminous power for the optical signal that MCU control XGPON monitoring chips monitoring optical modules receive, and by luminous power
Monitoring value reports main frame.
S412, Bit3 are if " 1 ", it is determined that and electric potential signal corresponding to reference signal is GPON Trigger signals,
After SERDES Trigger signals are sent, MCU judges the current potential of electric potential signal on the first pin.
If the current potential of electric potential signal is low level on S413, the first pin, MCU can be read from the first pin
Trigger signals, the luminous power for the optical signal that MCU control GPON monitoring chips monitoring optical modules receive, and by luminous power
Monitoring value reports main frame.
The control method of OLT optical modules provided in an embodiment of the present invention, controller determine predeterminable area according to reference signal
Size, obtain predeterminable area, reference signal write in predeterminable area, and when sampling instant reaches, out of predeterminable area
Reference signal is read by turn, determines electric potential signal corresponding to the reference signal, and optical module is controlled according to the electric potential signal, is entered
And realize the accurate control to optical transceiver module.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Fig. 8 is the structural representation of the control device embodiment one of OLT optical modules provided by the invention.As shown in figure 8, this
The control device of embodiment belongs to optical module 10, and the control device of the present embodiment includes：
Receiving module 101, for receiving reference signal by I2C pins, electric potential signal is received by the first pin, it is described
Electric potential signal is the signal that Disable signals replace change with Trigger signal sequences, and the reference signal is believed with the current potential
There are mapping relations between number；
Control module 102, for according to the mapping relations between the reference signal and the electric potential signal, using described
Electric potential signal controls the light transmitting or received optical power monitoring of the optical module.
The control device of the OLT optical modules of the present embodiment, it can be used for the technical side for performing above-mentioned shown embodiment of the method
Case, its implementing principle and technical effect is similar, and here is omitted.
Fig. 9 is the structural representation of the control device embodiment two of OLT optical modules provided by the invention.In above-described embodiment
On the basis of, the control module 102 of the present embodiment includes reading unit 121 and query unit 122 and control unit 123；
The reading unit 121, for reading the reference signal.
The query unit 122, for inquiring about the mapping relations between the reference signal and the electric potential signal.
Described control unit 123, for controlling the light transmitting of the optical module using the electric potential signal or receiving light work(
Rate monitors.
The control device of the OLT optical modules of the present embodiment, it can be used for the technical side for performing above-mentioned shown embodiment of the method
Case, its implementing principle and technical effect is similar, and here is omitted.
Figure 10 is the structural representation of the control device embodiment three of OLT optical modules provided by the invention.In above-mentioned implementation
On the basis of example, the control device of the present embodiment also includes：Determining module 103, writing module 104 and acquisition module 105；
The determining module 103, for determining the size of the predeterminable area according to the reference signal.
The acquisition module 104, for controlling the address offset of the register according to the size of the predeterminable area, obtain
Obtain the predeterminable area.
Said write module 105, for the reference signal to be write in the predeterminable area of the optical mode block register, institute
State the user operable area that predeterminable area belongs to the register.
The reading unit 121, specifically for reading the reference signal from the predeterminable area.
In a kind of possible implementation of the present embodiment, the predeterminable area includes the first bit positions and the 2nd bit
Position, the first bit positions and the 2nd bit positions are used for the reference signal for depositing four kinds of states, the reference of four kinds of states
Electric potential signal corresponding to signal difference is XGPON Disable signals, GPON Disable signals, XGPON Trigger signals
With GPON Trigger signals.
The control device of the OLT optical modules of the present embodiment, it can be used for the technical side for performing above-mentioned shown embodiment of the method
Case, its implementing principle and technical effect is similar, and here is omitted.
Figure 11 is the structural representation of OLT provided by the invention control device embodiment one, as shown in figure 11, this implementation
The control device of example belongs to main frame 20, and the device of the present embodiment also includes：
Acquisition module 201, for obtaining reference signal corresponding to electric potential signal and the electric potential signal；The reference signal
There are mapping relations between the electric potential signal, the electric potential signal is that Disable signals replace with Trigger signal sequences
The signal of change；
Sending module 202, for sending reference signal by I2C pins, the electric potential signal is sent by the first pin.
The OLT of the present embodiment control device, it can be used for the technical scheme for performing above-mentioned shown embodiment of the method, in fact
Existing principle is similar with technique effect, and here is omitted.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of control method of optical line terminal OLT optical module, it is characterised in that methods described includes：
Reference signal is received by I2C pins, electric potential signal is received by the first pin, the electric potential signal is believed for Disable
Number replace the signal of change with Trigger signal sequences, there are mapping relations between the reference signal and the electric potential signal；
According to the mapping relations between the reference signal and the electric potential signal, the optical mode is controlled using the electric potential signal
The light transmitting or received optical power monitoring of block.
2. control method according to claim 1, it is characterised in that described to be believed according to the reference signal and the current potential
Mapping relations between number, the light transmitting of the optical module or received optical power is controlled to monitor using electric potential signal control,
Specifically include：
Read the reference signal；
The mapping relations inquired about between the reference signal and the electric potential signal, and control the light using the electric potential signal
The light transmitting or received optical power monitoring of module.
3. control method according to claim 2, it is characterised in that after the reception reference signal by I2C pins,
Methods described also includes：
The reference signal is write in the predeterminable area of the optical mode block register, the predeterminable area belongs to the register
User operable area.
4. control method according to claim 3, it is characterised in that described that the reference signal is write into the optical module
Before in the user operable area of register, methods described also includes：
The size of the predeterminable area is determined according to the reference signal；
The address offset of the register is controlled according to the size of the predeterminable area, obtains the predeterminable area.
5. control method according to claim 4, it is characterised in that it is described to read the reference signal, specifically include：
The reference signal is read from the predeterminable area.
6. control method according to claim 5, it is characterised in that the predeterminable area includes the first bit positions and second
Bit positions, the first bit positions and the 2nd bit positions are used for the reference signal for depositing four kinds of states, the ginseng of four kinds of states
Electric potential signal corresponding to examining signal difference is XGPON Disable signals, GPON Disable signals, XGPON Trigger letters
Number and GPON Trigger signals.
A kind of 7. control device of optical line terminal OLT optical module, it is characterised in that including：
Receiving module, for receiving reference signal by I2C pins, electric potential signal, the current potential letter are received by the first pin
Number for Disable signals replace with Trigger signal sequences change signal, between the reference signal and the electric potential signal
With mapping relations；
Control module, for according to the mapping relations between the reference signal and the electric potential signal, being believed using the current potential
The light transmitting or received optical power monitoring of number control optical module.
8. control device according to claim 7, it is characterised in that the control module includes reading unit and cargo tracer
Member and control unit；
The reading unit, for reading the reference signal；
The query unit, for inquiring about the mapping relations between the reference signal and the electric potential signal；
Described control unit, light transmitting or received optical power for being controlled the optical module using the electric potential signal are monitored.
A kind of 9. control method of optical line terminal OLT, it is characterised in that including：
Obtain reference signal corresponding to electric potential signal and the electric potential signal；Have between the reference signal and the electric potential signal
There are mapping relations, the electric potential signal is the signal that Disable signals replace change with Trigger signal sequences；
Reference signal is sent by I2C pins, the electric potential signal is sent by the first pin.
A kind of 10. control device of optical line terminal OLT, it is characterised in that including：
Acquisition module, for obtaining reference signal corresponding to electric potential signal and the electric potential signal；The reference signal with it is described
There are mapping relations, the electric potential signal is that Disable signals replace change with Trigger signal sequences between electric potential signal
Signal；
Sending module, for sending reference signal by I2C pins, the electric potential signal is sent by the first pin.
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