CN202256782U - SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module - Google Patents
SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module Download PDFInfo
- Publication number
- CN202256782U CN202256782U CN2011201867114U CN201120186711U CN202256782U CN 202256782 U CN202256782 U CN 202256782U CN 2011201867114 U CN2011201867114 U CN 2011201867114U CN 201120186711 U CN201120186711 U CN 201120186711U CN 202256782 U CN202256782 U CN 202256782U
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- optical
- sfp
- module
- receiving
- shell
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Abstract
The utility model discloses an SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module which is characterized by comprising a shell and a module main body, wherein the shell is used for installing the module main body, a module main body is arranged in the shell and is integrated with an optical submodule, a digital diagnosis circuit and a receiving amplitude limiting amplifier. The SFP<+> dual-receiving optical module capable of simultaneously receiving two different paths of optical signals in the utility model can be widely applied to a 10G Ethernet interface and other optical connecting systems and is mainly used for transmitting various data signals, images and the like in photoelectric communication. The product is further simplified on the design aspect, the space of a PCB (Printed Circuit Board) is saved, and low power consumption and low cost are realized.
Description
Technical field
The utility model relates to the opto-electronic communications technology field, especially relates to a kind of SFP that can accomplish the different passage light signals receptions of two-way simultaneously
+Two receipts optical modules.
Background technology
In 10G Ethernet and 10G optical link system, when needs received two-way difference passage light signal, perhaps a module will realize that two ways of optical signals receives, and then can adopt two optical modules of receiving to accomplish.The two-way light data-signal that from optical link, receives is given to two optical module PIN+TIA detectors of receiving; Photodiode (PD) through inside modules converts electric signal into; Being input to prime amplifier (Preamplifier) amplifies; Prime amplifier possesses AGC function (automatic gain control); Electric signal by a small margin after the conversion of miniwatt input light is adopted the enlargement factor of big gain, and the signal significantly after the high-power input light conversion is adopted the enlargement factor of little gain, thereby make the electrical signal amplitude fluctuation of its output be significantly smaller than the fluctuating range of input optical signal power.Limiting amplifier (Limiting Amplifier) receives signal after prime amplifier amplifies to carry out secondary and amplifies, the electrical data signal of output module number.The light signal of load module is behind above-mentioned opto-electronic conversion, prime amplifier, limiting amplifier, keep constant voltage output amplitude at the electric data output end of optical module like this; Can not fluctuate, input light is had alarming threshold measuring ability (SD) with the size variation of input optical signal.Has numerical diagnostic (DDM) function simultaneously, the size of the following parameter of its ability real time monitoring: WV, working temperature, received optical power 1, received optical power 2.In order to prevent crosstalking between two unlike signals,, layout (Layout) take branch ground and bag ground method to realize when designing usually.Photoelectricity transformation principle block diagram such as Fig. 1.
In the optical module application process, in the time of need receiving the signal from the two-way different directions especially simultaneously, in existing optical module, just need two single optical modules of receiving to accomplish, increased volume and the power consumption and the cost of product virtually.
The utility model content
The purpose of the utility model is to provide a kind of can accomplish the SFP that the different passage light signals of two-way receive simultaneously
+Two receipts optical modules address the deficiencies of the prior art.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of SFP
+Two receipts optical modules, described SFP
+Two receipts optical modules comprise the shell that is used for the installed module main body, and are arranged at the module bodies in the shell, and described module bodies is integrated with optical secondary module, numerical diagnostic circuit and receives limiting amplifier.
Described optical secondary module is integrated with two light-receiving secondary modules; Described reception limiting amplifier is two groups.
The utility model is described can accomplish the SFP that the different passage light signals of two-way receive simultaneously
+Two receipts optical modules can be widely used in 10G optical Ethernet interface, and other optics connect in (Other optical links) systems, in photoelectric communication, mainly are used for transmitting various data-signals, image etc.Product is simplified at design aspect more, saves the pcb board space, reduces power consumption, and can reduce cost for product.
Description of drawings
Shown in Figure 1 is the photoelectricity transformation principle synoptic diagram;
Shown in Figure 2 is the described SFP of the utility model
+Two receipts optical module surface structure synoptic diagram;
Shown in Figure 3 is the described SFP of the utility model
+Two receipts optical module principle of work synoptic diagram;
Shown in Figure 4 is the described SFP of the utility model
+Two receipts optical module pin synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explain.
As shown in Figure 2, SFP
+Two receipts optical modules comprise the shell that is used for the installed module main body, and are arranged at the module bodies in the shell, and described module bodies is integrated with optical secondary module, numerical diagnostic circuit and receives limiting amplifier.
Module bodies cooperates with shell when installing; PCBA 6, TOSA 7, ROSA 5 are assembled on the drain pan 8 simultaneously; Be pressed in TOSA 7, ROSA 5 bayonet socket places with friction top 4, be used for fixing TOSA 7 and ROSA 5, keep TOSA 7 and ROSA 5 and the concentricity axle of drain pan 8 light mouths; Then be assembled into draw ring 12 on the base, spring 10 and slide block 11 are assembled on the loam cake 3, be assembled into simultaneously on the drain pan 8, be used for locating PCBA6, modular assembly, draw ring 12.It mainly is to cooperate release to use with cage that draw ring 12, spring 10 and slide block 11 cooperate, and uses screw 1 fixed cover at last, puts shell fragment 9, labelled 2.
Two receipts optical modules adopt two optical fiber receive modules, and (ROSA#1 ROSA#2), two groups of limiting amplifiers and numerical diagnostic circuit, organically is integrated in two optical module receiving circuits in the optical module through PCB layout (LAYOUT) design tactics.The core of ROSA is photodiode and prime amplifier, and ROSA is assembled in a formed assembly of airtight container with photodiode and prime amplifier exactly, for the output of importing has good impedance matching, also need dispose impedance matching network in the assembly.Photodiode also needs the configuring direct current biasing circuit.For fear of light reflected back optical fiber, in assembly, also take antireflection to handle.Implementation: #1 road light signal converts photocurrent to voltage signal through ROSA# 1, and voltage signal produces the data-signal AC coupling output of difference DATA+ and DATA-through limiting amplifier #1.Possess No Light Alarm function and numerical diagnostic function simultaneously.No Light Alarm is meant that the minimum received optical power of module detects the setting of level, when signal level is lower than the detection level of setting, the SD deixis at this moment occurs, and counter-rotating appears in level, and the light signal that the prompting user imports at this moment is too small, can't normally receive.The numerical diagnostic function is to the WV when front module, temperature, and the receiving optical signals size has real-time monitoring and control; Can detect the size of these index currencys, also can set the working range (i.e. warning and alarm) of these three indexs, and have corresponding address to show that these warnings and alarm indicate; Normal condition is 0, if a certain index has surpassed the scope of setting, the corresponding address bit of module can put 1; System can detect these address bits in real time, if detected 1 level, corresponding pilot lamp can show; The user just can check system, can make total system work more reliable like this, is convenient to safeguard; The principle of work of #2 road light signal is same as #1 road light signal.The two paths of signals circuit theory diagrams are the same, but work alone separately, do not disturb mutually.Principle of work is as shown in Figure 3.
The two optical module pin definitions of receiving of SFP+: on the basis of the two fine integrated modules of optical transceiver of SFP+, defined the two optical module pins of receiving of SFP+ again; Promptly become two another road pins of receiving optical module of SFP+ to the two fine integrated module of optical transceiver radiating portion pin definitions of SFP+; Make full use of existing SFP+ structure, realize that the different passage light signals of two-way receive, and promptly possess two optical modules of receiving function; Specifically see Fig. 4 for details, pin definitions is described and is seen table 1 for details; The SFP+ main performance index is as shown in table 2; Numerical diagnostic function and address distribute as shown in table 3.
The two optical module pin definitions of receiving of table 1 SFP+ are described
| Number of pins | Title | Function and |
| 1 | |
The #1 road receives ground, and |
| 2 | NC | The module fixing feet is not connected with |
| 3 | RX- |
The #1 road receives signal SD indication (seeing 1 for details) |
| 4 | SDA | The data line of serial i D two-wire serial interface (seeing 2 for details) |
| 5 | SCL | The clock line of serial i D two-wire serial interface (seeing 2 for details) |
| 6 | NC | The module fixing feet is not connected with |
| 7 | RX- |
NC |
| 8 | RX- |
The #2 road receives signal SD indication (seeing 1 for details) |
| 9 | RX- |
|
| 10 | |
The #2 road receives ground, and |
| 11 | |
The #2 road receives ground, and |
| 12 | RD-#2 | The #2 road receives data minus |
| 13 | |
The #2 road receives data |
| 14 | |
The #2 road receives ground, and |
| 15 | |
The #2 road receives power supply, 3.3V ± 5% |
| 16 | |
The #1 road receives power supply, 3.3V ± 5% |
| 17 | |
The #1 road receives ground, and |
| 18 | |
The #1 road receives data |
| 19 | RD-#1 | The #1 road receives data minus |
| 20 | |
The #1 road receives ground, and |
Explain:
1,3, LOS signal OC door output.It is drawn on resistance H of 4.7K～10Kohms.On draw voltage between 2.0V and Vcc+0.3V.When output during 1 level, the expression received optical power is lower than poor reception sensitivity.When being output as 0 level, represent operate as normal.Under low state, output is pulled down to less than 0.8V.
2, SDA/SCL is drawn on the resistance of a 4.7K～10Kohms.On draw voltage between 2.0V and VccT.
The two light module main performance index of table 2 SFP+
Table 3 numerical diagnostic function and address distribute
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (2)
1. SFP
+Two receipts optical modules is characterized in that: described SFP
+Two receipts optical modules comprise the shell that is used for the installed module main body, and are arranged at the module bodies in the shell, and described module bodies is integrated with optical secondary module, numerical diagnostic circuit and receives limiting amplifier.
2. SFP as claimed in claim 1
+Two receipts optical modules is characterized in that: described optical secondary module is integrated with two light-receiving secondary modules; Described reception limiting amplifier is two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201867114U CN202256782U (en) | 2011-06-03 | 2011-06-03 | SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201867114U CN202256782U (en) | 2011-06-03 | 2011-06-03 | SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256782U true CN202256782U (en) | 2012-05-30 |
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ID=46118001
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201867114U Expired - Fee Related CN202256782U (en) | 2011-06-03 | 2011-06-03 | SFP (Small Form-Factor Pluggable)<+> dual-receiving optical module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256782U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270203A (en) * | 2014-10-24 | 2015-01-07 | 成都新易盛通信技术股份有限公司 | SFF double-light-emitting module with DDM function and optical communication system |
| CN104320195A (en) * | 2014-11-10 | 2015-01-28 | 苏州旭创科技有限公司 | Optical module |
| CN105610512A (en) * | 2016-03-21 | 2016-05-25 | 成都新易盛通信技术股份有限公司 | DC-20Mbps low-rate double-reception SFP optical module |
| CN105827326A (en) * | 2016-03-21 | 2016-08-03 | 四川新易盛通信技术有限公司 | 32 Kbps to 80 Mbps low-speed dual-reception SFP optical module |
| CN108701925A (en) * | 2015-12-17 | 2018-10-23 | 菲尼萨公司 | High speed data connector |
| 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 |
| WO2018233119A1 (en) * | 2017-06-21 | 2018-12-27 | 昂纳信息技术（深圳）有限公司 | Monitoring and indication system of optical module |
-
2011
- 2011-06-03 CN CN2011201867114U patent/CN202256782U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270203A (en) * | 2014-10-24 | 2015-01-07 | 成都新易盛通信技术股份有限公司 | SFF double-light-emitting module with DDM function and optical communication system |
| CN104320195A (en) * | 2014-11-10 | 2015-01-28 | 苏州旭创科技有限公司 | Optical module |
| CN108701925A (en) * | 2015-12-17 | 2018-10-23 | 菲尼萨公司 | High speed data connector |
| CN108701925B (en) * | 2015-12-17 | 2020-04-14 | 菲尼萨公司 | High speed data connector |
| CN105610512A (en) * | 2016-03-21 | 2016-05-25 | 成都新易盛通信技术股份有限公司 | DC-20Mbps low-rate double-reception SFP optical module |
| CN105827326A (en) * | 2016-03-21 | 2016-08-03 | 四川新易盛通信技术有限公司 | 32 Kbps to 80 Mbps low-speed dual-reception SFP optical module |
| WO2018233119A1 (en) * | 2017-06-21 | 2018-12-27 | 昂纳信息技术（深圳）有限公司 | Monitoring and indication system of optical module |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20180603 |