CN209692780U - A kind of OSC communication system - Google Patents
A kind of OSC communication system Download PDFInfo
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- CN209692780U CN209692780U CN201920839278.6U CN201920839278U CN209692780U CN 209692780 U CN209692780 U CN 209692780U CN 201920839278 U CN201920839278 U CN 201920839278U CN 209692780 U CN209692780 U CN 209692780U
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- light module
- osc
- receiver
- variable attenuator
- local terminal
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Abstract
The utility model embodiment discloses a kind of OSC communication system, comprising: local terminal osc light module, the first variable attenuation and the first controller；The local terminal osc light module includes the first receiver, and first receiver is the first APD device；First variable attenuator is provided in the receiving channel of first receiver；First controller is separately connected the local terminal osc light module and first variable attenuator.OSC communication system provided by the embodiment of the utility model, which is used, is arranged the first variable attenuator on the receiving channel as the first APD device of the first receiver; fiber transmission link very in short-term; when local terminal osc light module detects received optical power more than the first APD device overload point; first controller adjusts the decaying of the first variable attenuator; make the power for eventually entering into the first APD device of local terminal osc light module in overload point hereinafter, playing a protective role to local terminal osc light module.
Description
[technical field]
The utility model relates to technical field of photo communication, more particularly to a kind of OSC communication system.
[background technique]
Dense wave division multipurpose DWDM (Dense Wavelength Division Multiplexing, be abbreviated as DWDM) skill
Art is widely used in global backbone network and Metropolitan Area Network (MAN), has given full play to bandwidth of an optical fiber resource, meets people and holds to communication
An urgent demand of amount.For the performance of monitoring network, Optical Supervisory Channel OSC (Optical Supervisory Channel, letter
Be written as OSC) concept come into being.
The channel OSC is the important channel that optical communication system carries out network management communication, to the opening of entire business, O&M, failure
It handles particularly significant.In order to adapt to the different length of optical fiber link, it is desirable to the dynamic range in the channel OSC is sufficiently large, therefore
In practical applications, in order to adapt to transmit at a distance, in opposite end, the transmitting terminal of OSC improves Output optical power, local terminal OSC's
Receiving end can use avalanche diode APD (Avalanche Photodiode, be abbreviated as APD) device, the reception of APD device
High sensitivity, for improving the receiving sensitivity of local terminal OSC.But it is limited by APD device itself overload point power, works as local terminal
When the input optical power of the receiving end OSC is greater than APD device overload point power, there are the risks that APD device is burnt.Therefore in reality
In use, require local terminal OSC reception power work in APD device overload point hereinafter, but in the case where transmission link is very short,
There is a situation where the reception power of local terminal OSC more than APD device overload point.
In consideration of it, overcoming defect present in the prior art is the art urgent problem to be solved.
[utility model content]
The technical problem to be solved by the utility model is to solving in the case where fiber transmission link is very short, there is this
Situation of the reception power of osc light module more than APD device overload point is held, APD device there are problems that burning risk.
The utility model adopts the following technical solution:
In a first aspect, the utility model provides a kind of OSC communication system, comprising: local terminal osc light module 10, first can
Become attenuator 11 and the first controller 12；
The local terminal osc light module 10 includes the first receiver 101, and first receiver 101 is the first APD device；
First variable attenuator 11 is provided in the receiving channel of first receiver 101；
First controller 12 is separately connected the local terminal osc light module 10 and first variable attenuator 11.
Preferably, the local terminal osc light module 10 further includes the first transmitter 102；
First transmitter 102 is connected with the second receiver 201 of opposite end osc light module 20；
First receiver 101 is connected with the second transmitter 202 of the opposite end osc light module 20, and described first
Variable attenuator 11 is arranged between first receiver 101 and second transmitter 202.
Preferably, the 12 model STM32F207 of the first controller.
Preferably, the model SFPVOA-B-C-20-00-LC/UPC of first variable attenuator 11.
Preferably, first controller 12 is separately connected the local terminal osc light module 10 and described by I2C interface
One variable attenuator 11.
Second aspect, the utility model provide a kind of OSC communication system, comprising: opposite end osc light module 20, second can
Become attenuator 21 and second controller 22；
The opposite end osc light module 20 includes the second receiver 201, and second receiver 201 is the 2nd APD device；
Second variable attenuator 21 is provided in the receiving channel of second receiver 201；
The second controller 22 is separately connected the opposite end osc light module 20 and second variable attenuator 21.
Preferably, the opposite end osc light module 20 further includes the second transmitter 202；
Second transmitter 202 is connected with the first receiver 101 of local terminal osc light module 10；
Second receiver 201 is connected with the first transmitter 102 of the local terminal osc light module 10, and described second
Variable attenuator 21 is arranged between second receiver 201 and first transmitter 102.
Preferably, the 22 model STM32F207 of second controller.
Preferably, the model SFPVOA-B-C-20-00-LC/UPC of second variable attenuator 21.
The third aspect, the utility model provide a kind of OSC communication system, comprising: local terminal osc light module 10, opposite end OSC
Optical module 20, the first variable attenuator 11, the second variable attenuator 21, the first controller 12 and second controller 22；
First receiver 101 of the local terminal osc light module 10 is the first APD device, the opposite end osc light module 20
Second receiver 201 is the 2nd APD device；
It is set between first receiver 101 and the link position of the second transmitter 202 of the opposite end osc light module 20
It is equipped with the first variable attenuator 11, the first transmitter 102 of second receiver 201 and the local terminal osc light module 10
The second variable attenuator 21 is provided between link position；
First controller 12 is separately connected the local terminal osc light module 10 and first variable attenuator 11, institute
It states second controller 22 and is separately connected the opposite end osc light module 20 and second variable attenuator 21.
In general, have the above technical solutions conceived by the present invention are compared with the prior art, has as follows
Beneficial effect: the utility model embodiment provides a kind of OSC communication system, is applied to local terminal osc light module, comprising: local terminal OSC
Optical module, the first variable attenuation and the first controller；The local terminal osc light module includes the first receiver, and described first receives
Machine is the first APD device；First variable attenuator is provided in the receiving channel of first receiver；Described first
Controller is separately connected the local terminal osc light module and first variable attenuator.OSC provided by the embodiment of the utility model
Communication system is using the first variable attenuator is arranged on the receiving channel as the first APD device of the first receiver, in light
Fine transmission link very in short-term, when local terminal osc light module detects received optical power more than the first APD device overload point, first
Controller adjusts the decaying of the first variable attenuator, is overloading the power for eventually entering into the first APD device of local terminal osc light module
Point plays a protective role to local terminal osc light module hereinafter, prevent the first APD device from burning.
[Detailed description of the invention]
It, below will be in the utility model embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Required attached drawing is briefly described.It should be evident that drawings described below is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of local terminal OSC communication system provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of OSC communication system in opposite end provided by the embodiment of the utility model；
Fig. 3 is the entirety of local terminal OSC communication system provided by the embodiment of the utility model and the combination of opposite end OSC communication system
Structural schematic diagram.
[specific embodiment]
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Term "inner", "outside", " longitudinal direction ", " transverse direction ", "upper", "lower", "top", "bottom" in the description of the present invention,
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new
Type rather than require the utility model that must be constructed and operated in a specific orientation, therefore be not construed as to the utility model
Limitation.
As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.
Embodiment one:
The utility model embodiment one provides a kind of OSC communication system, as shown in Figure 1, comprising: local terminal osc light module
10, the first variable attenuator 11 and the first controller 12；
The local terminal osc light module 10 includes the first receiver 101, and first receiver 101 is the first APD device；
First variable attenuator 11 is provided in the receiving channel of first receiver 101；
First controller 12 is separately connected the local terminal osc light module 10 and first variable attenuator 11.
OSC communication system provided by the embodiment of the utility model is used in the first APD device as the first receiver
First variable attenuator is set in receiving channel, fiber transmission link very in short-term, local terminal osc light module detect receive light function
When rate is more than the first APD device overload point, the first controller adjusts the decaying of the first variable attenuator, makes to eventually enter into local terminal
The power of the first APD device of osc light module is in overload point hereinafter, preventing the first APD device from burning, to local terminal osc light module
To protective effect.
In conjunction with the utility model embodiment one, refering to fig. 1 and Fig. 3, the structure of OSC communication system is illustrated.Local terminal
Osc light module 10 includes the first receiver 101 and the first transmitter 102, and the first receiver 101 is the first APD device.First
The first variable attenuator 11 is provided in the receiving channel of receiver 101, i.e., in the first receiver 101 and opposite end osc light module
The first variable attenuator 11 is provided between 20 the second transmitter 202, the first controller 12 is separately connected local terminal osc light module
10 and first variable attenuator 11, the first controller 12 be used to adjust the decaying of the first variable attenuator 11, make to eventually enter into
Hold the power of the first APD device of osc light module 10 in overload point hereinafter, preventing the first APD device from burning, to local terminal osc light
Module 10 plays a protective role.First transmitter 102 is connected with the second receiver 201 of opposite end osc light module 20.
In conjunction with the utility model embodiment one, model and connection relationship to each component part of OSC communication system are carried out
Explanation.First controller, 12 model is preferably STM32F207；The model of first variable attenuator 11 is preferably
SFPVOA-B-C-20-00-LC/UPC.First controller 12 is separately connected the local terminal osc light module by I2C interface
10 and first variable attenuator 11, specifically, the first controller 12 connects the local terminal osc light mould by I2C_2 interface
Block 10, the first controller 12 connect first variable attenuator 11 by I2C_1 interface.
In conjunction with the utility model embodiment one, the working principle of OSC communication system is illustrated.For example, as first
The overload point power of first APD device of receiver 101 is P1dBm, and the first variable attenuator 11 of setting is adjusted through decaying
The upper limit of the power be P2dBm, lower limit of the power P3dBm, wherein P3≤P2≤P1, the first variable attenuator 11 of default is when powering on
Decay to A1dB.
It is P4dBm when local terminal osc light module 10 detects the optical power received, if when P4 > P1, increasing first can
Become the decaying of attenuator 11, so that it is P5dBm that local terminal osc light module 10, which detects the optical power adjusted received, wherein P3
≤P5≤P2≤P1。
If when P4 < P3, reducing the decaying of the first variable attenuator 11, so that the detection of local terminal osc light module 10 receives
The optical power adjusted arrived is P6dBm, wherein P3≤P6≤P2；Alternatively, the decaying of the first variable attenuator 11 is equal to 0, P6
<P3。
If when P3≤P4≤P2, the decaying of the first variable attenuator 11 is remained unchanged.
It should be noted that the working principle of above-mentioned OSC communication system is that those skilled in the art are seeing the application text
After part description scheme content, it can know how to realize.
Embodiment two:
The utility model embodiment two provides a kind of OSC communication system, as shown in Figure 2, comprising: opposite end osc light module
20, the second variable attenuator 21 and second controller 22；
The opposite end osc light module 20 includes the second receiver 201, and second receiver 201 is the 2nd APD device；
Second variable attenuator 21 is provided in the receiving channel of second receiver 201；
The second controller 22 is separately connected the opposite end osc light module 20 and second variable attenuator 21.
The OSC communication system that the utility model embodiment two provides is used in the 2nd APD device as the second receiver
Receiving channel on the second variable attenuator is set, fiber transmission link very in short-term, opposite end osc light module detects reception light
When power is more than the 2nd APD device overload point, second controller adjusts the decaying of the second variable attenuator, makes to eventually enter into pair
Hold the power of the 2nd APD device of osc light module in overload point hereinafter, preventing the 2nd APD device from burning, to opposite end osc light module
It plays a protective role.
The structure of OSC communication system is illustrated refering to Fig. 2 and Fig. 3 in conjunction with the utility model embodiment two.Opposite end
Osc light module 20 includes the second receiver 201 and the second transmitter 202, and the second receiver 201 is the 2nd APD device.Second
The second variable attenuator 21 is provided in the receiving channel of receiver 201, i.e., in the second receiver 201 and local terminal osc light module
The second variable attenuator 21 is provided between 10 the first transmitter 102, second controller 22 is separately connected opposite end osc light module
20 and second variable attenuator 21, second controller 22 be used to adjust the decaying of the second variable attenuator 21, make to eventually enter into pair
It holds the power of the 2nd APD device of osc light module 20 to tap in overload, prevents the 2nd APD device from burning, to opposite end osc light
Module 20 plays a protective role.Second transmitter 202 is connected with the first receiver 101 of local terminal osc light module 10.
In conjunction with the utility model embodiment two, model and connection relationship to each component part of OSC communication system are carried out
Explanation.22 model of second controller is preferably STM32F207；The model of second variable attenuator 21 is preferably
SFPVOA-B-C-20-00-LC/UPC.The second controller 22 is separately connected the opposite end osc light module by I2C interface
20 and second variable attenuator 21, specifically, second controller 22 connects the opposite end osc light mould by I2C_2 interface
Block 20, second controller 22 connect second variable attenuator 21 by I2C_1 interface.
In conjunction with the utility model embodiment two, the working principle of opposite end osc light module 20 specifically sees the utility model
Embodiment one, does not do repeated explanation herein.
Embodiment three:
The utility model embodiment three provides a kind of OSC communication system, as shown in Figure 3, comprising: local terminal osc light module
10, opposite end osc light module 20, the first variable attenuator 11, the second variable attenuator 21, the first controller 12 and second controller
22；
First receiver 101 of the local terminal osc light module 10 is the first APD device, the opposite end osc light module 20
Second receiver 201 is the 2nd APD device；
It is set between first receiver 101 and the link position of the second transmitter 202 of the opposite end osc light module 20
It is equipped with the first variable attenuator 11, the first transmitter 102 of second receiver 201 and the local terminal osc light module 10
The second variable attenuator 21 is provided between link position；
First controller 12 is separately connected the local terminal osc light module 10 and first variable attenuator 11, institute
It states second controller 22 and is separately connected the opposite end osc light module 20 and second variable attenuator 21.
The structure for the OSC communication system that the utility model embodiment three provides can be by the utility model embodiment one and this
The structure of utility model embodiment two combines to obtain, and does not do repeated explanation herein.
The OSC communication system that the utility model embodiment three provides, using APD device as receiver, as reception
Be provided with variable attenuator in the receiving channel of the APD device of machine, optical transmission chain very in short-term, osc light module detection receive
When to optical power more than APD device overload point, the decaying of variable attenuator is adjusted by controller, makes to eventually enter into osc light
The power of modules A PD device hereinafter, prevent APD device from burning, plays a protective role to osc light module in overload point.This is practical
New embodiment three provide OSC system can both work in the case where link range is shorter, can also work link away from
From in longer situation, making OSC communication system play maximum effect.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of OSC communication system characterized by comprising local terminal osc light module (10), the first variable attenuator (11) and
First controller (12)；
The local terminal osc light module (10) includes the first receiver (101), and first receiver (101) is the first APD device
Part；
First variable attenuator (11) is provided in the receiving channel of first receiver (101)；
First controller (12) is separately connected the local terminal osc light module (10) and first variable attenuator (11).
2. OSC communication system according to claim 1, which is characterized in that the local terminal osc light module (10) further includes
One transmitter (102)；
First transmitter (102) is connected with the second receiver (201) of opposite end osc light module (20)；
First receiver (101) is connected with the second transmitter (202) of the opposite end osc light module (20), and described
One variable attenuator (11) is arranged between first receiver (101) and second transmitter (202).
3. OSC communication system according to claim 1, which is characterized in that the first controller (12) model
STM32F207。
4. OSC communication system according to claim 1, which is characterized in that the model of first variable attenuator (11)
For SFPVOA-B-C-20-00-LC/UPC.
5. OSC communication system according to claim 1, which is characterized in that first controller (12) passes through I2C interface
It is separately connected the local terminal osc light module (10) and first variable attenuator (11).
6. a kind of OSC communication system characterized by comprising opposite end osc light module (20), the second variable attenuator (21) and
Second controller (22)；
The opposite end osc light module (20) includes the second receiver (201), and second receiver (201) is the 2nd APD device
Part；
Second variable attenuator (21) is provided in the receiving channel of second receiver (201)；
The second controller (22) is separately connected the opposite end osc light module (20) and second variable attenuator (21).
7. OSC communication system according to claim 6, which is characterized in that the opposite end osc light module (20) further includes
Two transmitters (202)；
Second transmitter (202) is connected with the first receiver (101) of local terminal osc light module (10)；
Second receiver (201) is connected with the first transmitter (102) of the local terminal osc light module (10), and described
Two variable attenuators (21) are arranged between second receiver (201) and first transmitter (102).
8. OSC communication system according to claim 6, which is characterized in that second controller (22) model
STM32F207。
9. OSC communication system according to claim 6, which is characterized in that the model of second variable attenuator (21)
For SFPVOA-B-C-20-00-LC/UPC.
10. a kind of OSC communication system characterized by comprising local terminal osc light module (10), opposite end osc light module (20),
One variable attenuator (11), the second variable attenuator (21), the first controller (12) and second controller (22)；
The first receiver (101) of the local terminal osc light module (10) is the first APD device, the opposite end osc light module (20)
The second receiver (201) be the 2nd APD device；
Between the link position of the second transmitter (202) of first receiver (101) and the opposite end osc light module (20)
It is provided with the first variable attenuator (11), the first transmitting of second receiver (201) and the local terminal osc light module (10)
The second variable attenuator (21) are provided between the link position of machine (102)；
First controller (12) is separately connected the local terminal osc light module (10) and first variable attenuator (11),
The second controller (22) is separately connected the opposite end osc light module (20) and second variable attenuator (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839278.6U CN209692780U (en) | 2019-06-05 | 2019-06-05 | A kind of OSC communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839278.6U CN209692780U (en) | 2019-06-05 | 2019-06-05 | A kind of OSC communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209692780U true CN209692780U (en) | 2019-11-26 |
Family
ID=68609385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920839278.6U Active CN209692780U (en) | 2019-06-05 | 2019-06-05 | A kind of OSC communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209692780U (en) |
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2019
- 2019-06-05 CN CN201920839278.6U patent/CN209692780U/en active Active
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