CN109547877B - Optical communication channel switching circuit and use method thereof - Google Patents
Optical communication channel switching circuit and use method thereof Download PDFInfo
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- CN109547877B CN109547877B CN201910087987.8A CN201910087987A CN109547877B CN 109547877 B CN109547877 B CN 109547877B CN 201910087987 A CN201910087987 A CN 201910087987A CN 109547877 B CN109547877 B CN 109547877B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
Abstract
The invention discloses an optical communication channel switching circuit and a using method thereof, relating to the technical field of optical communication, wherein the circuit comprises: a MAC processing unit, comprising: the MAC chip comprises a main PON interface; a first PON optical module comprising a first PON; a second PON optical module comprising a second PON; and the switching module is used for responding to the user-defined selection signal sent by the MAC processing unit and correspondingly establishing a communication channel between the main PON interface and the first PON or the second PON. The invention can realize the switching of the MAC chip among different PON interfaces on the premise of saving hardware cost, conveniently and quickly switch the path and ensure the normal operation of communication work.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to an optical communication channel switching circuit and method.
Background
With the wide application of PON networks, how to ensure the service reliability of enterprise customers or mobile users in PON networks becomes a problem that operators generally pay attention to;
in the existing stage, a commonly used optical path protection mechanism needs workers to manually cooperate with equipment to perform redundancy protection on an ONU PON port, a trunk optical fiber, an optical splitter and a distribution optical fiber, so that when a certain part fails, the other path of optical fiber can be switched to, and when the fault of the original fault link is recovered, service can be switched back to the original fault link;
however, the existing optical path protection mechanism has the problems of complicated operation procedures and low working efficiency;
therefore, a new optical communication path switching circuit is urgently needed to improve the working efficiency of path switching.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an optical communication channel switching circuit and method, which can realize the switching of an MAC chip among different PON interfaces on the premise of saving hardware cost, conveniently and quickly switch channels and ensure the normal operation of communication work.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides an optical communication path switching circuit, where the circuit includes:
a MAC processing unit, comprising: the MAC chip comprises a main PON interface;
a first PON optical module comprising a first PON;
a second PON optical module comprising a second PON;
a switching module, configured to respond to a user-defined selection signal sent by the MAC processing unit, and correspondingly establish a communication channel between the main PON interface and the first PON or the second PON.
On the basis of the technical scheme, the self-defined selection signal comprises a first PON selection signal and a second PON selection signal;
the switching module responds to the first PON selection signal and establishes a communication channel between the main PON interface and the first PON;
the switching module responds to the second PON selection signal and establishes a communication channel between the main PON interface and the second PON.
On the basis of the technical scheme, the MAC processing unit also comprises a reverse chip,
the reverse chip is respectively in signal connection with the MAC chip and the switching module;
the reverse chip is configured to perform reverse processing according to the first PON selection signal to obtain the second PON selection signal.
On the basis of the above technical solution, when the first PON selection signal is a high-level signal, the inverting chip performs an inverting process to obtain the second PON selection signal, where the second PON selection signal is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip performs reverse processing to obtain a second PON selection signal, wherein the second PON selection signal is a high-level signal;
the switching module responds to the high level signal and establishes a communication channel between the main PON interface and the first PON or the second PON according to the high level signal.
On the basis of the above technical solution, when the first PON selection signal is a high-level signal, the inverting chip performs an inverting process to obtain the second PON selection signal, where the second PON selection signal is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip performs reverse processing to obtain a second PON selection signal, wherein the second PON selection signal is a high-level signal;
the switching module may further respond to a low level signal, and establish a communication channel between the main PON interface and the first PON or the second PON according to the low level signal.
In a second aspect, the present invention provides another optical communication path switching circuit, where the circuit includes:
a MAC processing unit, comprising: the MAC chip comprises a main PON interface;
a first PON optical module comprising a first PON;
a second PON optical module comprising a second PON;
a switching module, configured to be in signal connection with the main PON interface, the first PON, and the second PON, where the switching module is configured to receive the first PON selection signal or the second PON selection signal sent by the MAC processing unit, establish a communication channel between the main PON interface and the first PON according to the first PON selection signal, and establish a communication channel between the main PON interface and the second PON according to the second PON selection signal.
In a third aspect, the present invention further provides a method for using an optical communication path switching circuit, where the method is based on the optical communication path switching circuit provided in the first aspect, and includes the following steps:
the MAC processing unit sends a user-defined selection signal to the switching module through the main PON interface;
and the switching module receives the user-defined selection signal and establishes a communication channel between the main PON interface and the first PON or the second PON according to the user-defined selection signal.
On the basis of the technical scheme, the self-defined selection signal comprises a first PON selection signal and a second PON selection signal;
the switching module responds to the first PON selection signal and establishes a communication channel between the main PON interface and the first PON;
the switching module responds to the second PON selection signal and establishes a communication channel between the main PON interface and the second PON.
On the basis of the technical scheme, the MAC processing unit also comprises a reverse chip,
the reverse chip is respectively in signal connection with the MAC chip and the switching module;
the reverse chip is configured to perform reverse processing according to the first PON selection signal to obtain the second PON selection signal.
On the basis of the above technical solution, when the first PON selection signal is a high-level signal, the inverting chip performs an inverting process to obtain the second PON selection signal, where the second PON selection signal is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip performs reverse processing to obtain a second PON selection signal, wherein the second PON selection signal is a high-level signal;
the switching module responds to a high level signal and establishes a communication channel between the main PON interface and the first PON or the second PON according to the high level signal;
or the switching module responds to a low level signal and establishes a communication channel between the main PON interface and the first PON or the second PON according to the low level signal.
Compared with the prior art, the invention has the advantages that:
the invention can realize the switching of the MAC chip among different PON interfaces on the premise of saving hardware cost, conveniently and quickly switch the path and ensure the normal operation of communication work.
Drawings
Fig. 1 is a block diagram of a first optical communication path switching circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a part of a first optical communication path switching circuit according to an embodiment of the present invention;
fig. 3 is a block diagram of a second optical communication path switching circuit according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating steps of a method for using an optical communication path switching circuit according to an embodiment of the present invention;
in the figure: 1. an MAC processing unit; 10. an MAC chip; 100. a main PON interface; 11. a reverse chip; 2. a first PON optical module; 20. a first PON; 3. a second PON optical module; 30. a second PON; 4. a switching module; 5. and a monitoring unit.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In order to achieve the technical effects, the general idea of the application is as follows:
an optical communication path switching circuit, the circuit comprising:
a MAC processing unit 1, comprising: the MAC chip 10, the MAC chip 10 includes a main PON interface 100;
a first PON optical module 2, the first PON optical module 2 comprising a first PON 20;
a second PON optical module 3, the second PON optical module 3 including a second PON 30;
the switching module 4, the switching module 4 is configured to respond to the self-defined selection signal sent by the MAC processing unit 1, and accordingly establish a communication channel between the main PON interface 100 and the first PON20 or the second PON 30.
Embodiments of the present invention provide an optical communication path switching circuit and method, which can implement switching between different PON interfaces by an MAC chip on the premise of saving hardware cost, and ensure normal operation of communication while performing path switching conveniently and quickly.
Referring to fig. 1 and 2, a circuit embodiment of the present invention provides an optical communication path switching circuit, where the circuit includes:
a MAC processing unit 1, comprising: the MAC chip 10, the MAC chip 10 includes a main PON interface 100;
a first PON optical module 2, the first PON optical module 2 comprising a first PON 20;
a second PON optical module 3, the second PON optical module 3 including a second PON 30;
the switching module 4, the switching module 4 is configured to respond to the self-defined selection signal sent by the MAC processing unit 1, and accordingly establish a communication channel between the main PON interface 100 and the first PON20 or the second PON 30.
In this embodiment of the present invention, the MAC processing unit 1 is configured to send a custom selection signal to the conversion module 4, and the conversion module 4 responds to the custom selection signal sent by the MAC processing unit 1, and accordingly establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON 30;
when the instruction of the self-defined selection signal means that the main PON interface 100 communicates with the first PON20, a communication channel is established between the main PON interface 100 and the first PON 20;
when the instruction of the self-defined selection signal means that the main PON interface 100 communicates with the second PON30, a communication channel is established between the main PON interface 100 and the second PON 30;
further, the MAC chip 10 of the MAC processing unit 1 sends information to be transmitted to the first PON20 or the second PON30 through the main PON interface 100;
according to the embodiment of the invention, the double PON interfaces are realized by using the single PON MAC chip, the MAC chip can be switched among different PON interfaces on the premise of saving hardware cost, and the normal operation of communication work can be ensured while the path switching is conveniently and rapidly carried out.
It should be noted that after the communication channel is established, the communication channel is not only unidirectional, but also bidirectional, that is, not only the MAC chip 10 of the MAC processing unit 1 can send the information specifically required to be transmitted to the first PON20 or the second PON30, but also the first PON20 or the second PON30 can feed back the information specifically required to be transmitted to the MAC chip 10 of the MAC processing unit 1;
as shown in fig. 1 of the drawings of the specification, information to be transmitted is marked by SERDES.
If necessary, the embodiment of the invention can also be applied to GPON, EPON, XGSPON and 10GEPON scenes,
for example, in a GPON application scenario, the main PON interface 100 is specifically a main GPON interface; the first PON optical module 2 is specifically a first GPON optical module, and the first PON20 is specifically a first GPON; the second PON optical module 3 is specifically a second GPON optical module, and the second PON30 is specifically a second GPON;
in an EPON scenario, the main PON interface 100 is specifically a main EPON interface; the first PON optical module 2 is specifically a first EPON optical module, and the first PON20 is specifically a first EPON; the second PON optical module 3 is specifically a second EPON optical module, and the second PON30 is specifically a second EPON;
in addition, other PON on-line approaches, such as XGSPON and 10GEPON, are similar to the GPON and EPON cases.
In another specific implementation manner of the embodiment of the present invention, the self-defined selection signal includes a first PON selection signal and a second PON selection signal;
the switching module 4 responds to the first PON selection signal, and establishes a communication channel between the main PON interface 100 and the first PON 20;
the switching module 4 responds to the second PON selection signal to establish a communication channel between the main PON interface 100 and the second PON 30.
In another specific implementation manner of the embodiment of the present invention, the MAC processing unit 1 further includes a reverse chip 11,
the reverse chip 11 is respectively in signal connection with the MAC chip 10 and the switching module 4;
the inverting chip 11 is configured to perform an inverting process according to the first PON selection signal to obtain a second PON selection signal.
In another specific implementation manner of the embodiment of the present invention, when the first PON selection signal is a high-level signal, the reverse chip 11 performs reverse processing to obtain a second PON selection signal, where the second PON selection signal is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip 11 performs reverse processing to obtain a second PON selection signal, which is a high-level signal;
the switching module 4 responds to the high level signal, and establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON30 according to the high level signal;
specifically, as shown in fig. 2 of the drawings of the specification, Op _ ctrl and Op _ ctrl _ N represent a first PON selection signal and a second PON selection signal, respectively;
1A, 1B, 2A, 2B, 1Y, and 2Y are all interfaces of the switching module 4.
It should be noted that the switching module 4 can also be configured to respond to a low level signal, in this case, contrary to the above-mentioned embodiment,
when the first PON selection signal is a high-level signal, the reverse chip 11 performs reverse processing to obtain a second PON selection signal, which is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip 11 performs reverse processing to obtain a second PON selection signal, which is a high-level signal;
the switching module 4 may also respond to the low level signal, and establish a communication channel between the main PON interface 100 and the first PON20 or the second PON30 according to the low level signal;
compared with the above embodiment, the difference is only that the switching module 4 has different response settings, one is responding to a high level signal, and the other is responding to a low level signal.
In another specific implementation manner of the embodiment of the present invention, the MAC chip 10 is a BCM68380 chip;
of course, the chip is not limited to the BCM68380 chip, and a Hisilicon5115 series chip, a Hisilicon 5116 series chip or an MTK 7562 series chip can be selected according to actual requirements.
In another specific implementation manner of the embodiment of the invention, a monitoring meta-denier 5 can be additionally arranged as necessary, so that the working conditions of the MAC chip 10 and the reverse chip 11 are monitored;
the method is specifically used for monitoring the selection of the MAC processing unit 1, whether the first PON20 or the second PON30 is selected;
the optical receiving detection signals of the first PON optical module 2 and the second PON optical module 3 can be monitored, so that whether the OLT of the opposite terminal is connected or not and whether the ONU is registered or not can be checked;
in addition, information such as temperature, optical power, manufacturer, etc. of the first PON optical module 2 and the second PON optical module 3 can be acquired, and the operating condition of the optical modules can be monitored.
Based on the same inventive concept, the circuit embodiment of the present invention provides another embodiment of an optical communication path switching circuit, which is specifically as follows:
as shown in fig. 3, an optical communication path switching circuit includes:
a MAC processing unit 1, comprising: the MAC chip 10, the MAC chip 10 includes a main PON interface 100;
a first PON optical module 2, the first PON optical module 2 comprising a first PON 20;
a second PON optical module 3, the second PON optical module 3 including a second PON 30;
a switching module 4, configured to be in signal connection with the main PON interface 100, the first PON20, and the second PON30, where the switching module 4 is configured to receive a first PON selection signal or a second PON selection signal sent by the MAC processing unit 1, establish a communication channel between the main PON interface 100 and the first PON20 according to the first PON selection signal, and establish a communication channel between the main PON interface 100 and the second PON30 according to the second PON selection signal.
In this embodiment of the present invention, the MAC processing unit 1 is configured to send a first PON selection signal or a second PON selection signal to the conversion module 4, and the conversion module 4 responds to the self-defined selection signal sent by the MAC processing unit 1, and accordingly establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON 30;
the first PON selection signal is instructed to mean that the main PON interface 100 is in communication with the first PON20, a communication channel is established between the main PON interface 100 and the first PON 20;
the second PON selection signal is instructed to mean that the main PON interface 100 is in communication with the second PON30, a communication channel is established between the main PON interface 100 and the second PON 30;
further, the MAC chip 10 of the MAC processing unit 1 sends information to be transmitted to the first PON20 or the second PON30 through the main PON interface 100;
according to the embodiment of the invention, the double PON interfaces are realized by using the single PON MAC chip, the MAC chip can be switched among different PON interfaces on the premise of saving hardware cost, and the normal operation of communication work can be ensured while the path switching is conveniently and rapidly carried out.
Based on the same inventive concept, the present application provides an embodiment of a method for using an optical communication channel switching circuit corresponding to the first circuit embodiment, which is detailed as follows:
as shown in fig. 4, an embodiment of the method of the present invention provides a method for switching an optical communication path, where the method is based on the optical communication path switching circuit provided in the first aspect, and includes the following steps:
s1, MAC processing unit 1 sends a custom selection signal to switching module 4 through main PON interface 100;
s2, the switching module 4 receives the self-defined selection signal, and establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON30 according to the self-defined selection signal.
In this embodiment of the present invention, the MAC processing unit 1 is configured to send a custom selection signal to the conversion module 4, and the conversion module 4 responds to the custom selection signal sent by the MAC processing unit 1, and accordingly establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON 30;
when the instruction of the self-defined selection signal means that the main PON interface 100 communicates with the first PON20, a communication channel is established between the main PON interface 100 and the first PON 20;
when the instruction of the self-defined selection signal means that the main PON interface 100 communicates with the second PON30, a communication channel is established between the main PON interface 100 and the second PON 30;
further, the MAC chip 10 of the MAC processing unit 1 sends information to be transmitted to the first PON20 or the second PON30 through the main PON interface 100;
according to the embodiment of the invention, the double PON interfaces are realized by using the single PON MAC chip, the MAC chip can be switched among different PON interfaces on the premise of saving hardware cost, and the normal operation of communication work can be ensured while the path switching is conveniently and rapidly carried out.
It should be noted that after the communication channel is established, the communication channel is not only unidirectional, but also bidirectional, that is, not only the MAC chip 10 of the MAC processing unit 1 can send the information specifically required to be transmitted to the first PON20 or the second PON30, but also the first PON20 or the second PON30 can feed back the information specifically required to be transmitted to the MAC chip 10 of the MAC processing unit 1.
In another specific implementation manner of the embodiment of the present invention, the self-defined selection signal includes a first PON selection signal and a second PON selection signal;
the switching module 4 responds to the first PON selection signal, and establishes a communication channel between the main PON interface 100 and the first PON 20;
the switching module 4 responds to the second PON selection signal to establish a communication channel between the main PON interface 100 and the second PON 30.
In another specific implementation manner of the embodiment of the present invention, the MAC processing unit 1 further includes a reverse chip 11,
the reverse chip 11 is respectively in signal connection with the MAC chip 10 and the switching module 4;
the inverting chip 11 is configured to perform an inverting process according to the first PON selection signal to obtain a second PON selection signal.
It should be noted that the inverse chip 11 is preferably an alternative multiplexing/demultiplexing chip, and may specifically be an AD8159 chip, so that fast switching of a dual PON interface can be realized.
In another specific implementation manner of the embodiment of the present invention, when the first PON selection signal is a high-level signal, the reverse chip 11 performs reverse processing to obtain a second PON selection signal, where the second PON selection signal is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip 11 performs reverse processing to obtain a second PON selection signal, which is a high-level signal;
the switching module 4 responds to the high level signal, and establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON30 according to the high level signal.
In another specific implementation manner of the embodiment of the present invention, similar to the previous embodiment, the switching module 4 responds to the low level signal, and establishes a communication channel between the main PON interface 100 and the first PON20 or the second PON30 according to the low level signal.
In another specific implementation manner of the embodiment of the present invention, the MAC chip 10 is a BCM68380 chip;
of course, the chip is not limited to the BCM68380 chip, and a Hisilicon5115 series chip, a Hisilicon 5116 series chip or an MTK 7562 series chip can be selected according to actual requirements.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (1)
1. An application method based on an optical communication path switching circuit is characterized in that the optical communication path switching circuit is applied to GPON, EPON, XGSPON and 10GEPON scenes, and the circuit comprises:
a MAC processing unit (1) comprising: a MAC chip (10), the MAC chip (10) comprising a main PON interface (100);
a first PON optical module (2), the first PON optical module (2) comprising a first PON (20);
a second PON optical module (3), the second PON optical module (3) comprising a second PON (30);
a switching module (4), wherein the switching module (4) is configured to respond to a self-defined selection signal sent by the MAC processing unit (1), and accordingly establish a communication channel between the main PON interface (100) and the first PON (20) or the second PON (30);
the MAC processing unit (1) further comprises a reverse chip (11),
the reverse chip (11) is respectively in signal connection with the MAC chip (10) and the switching module (4);
the reverse chip (11) is configured to perform reverse processing according to the first PON selection signal to obtain the second PON selection signal;
the using method comprises the following steps:
the MAC processing unit (1) sends a self-defined selection signal to the switching module (4) through the main PON interface (100);
the switching module (4) receives the self-defined selection signal, and establishes a communication channel between the main PON interface (100) and the first PON (20) or the second PON (30) according to the self-defined selection signal;
the self-defined selection signal comprises a first PON selection signal and a second PON selection signal;
the switching module (4) responds to the first PON selection signal, and establishes a communication channel between the main PON interface (100) and the first PON (20);
the switching module (4) responds to the second PON selection signal to establish a communication channel between the main PON interface (100) and the second PON (30).
When the first PON selection signal is a high-level signal, the reverse chip (11) performs reverse processing to obtain a second PON selection signal, wherein the second PON selection signal is a low-level signal;
when the first PON selection signal is a low-level signal, the reverse chip (11) performs reverse processing to obtain a second PON selection signal, wherein the second PON selection signal is a high-level signal;
the switching module (4) responds to a high level signal or a low level signal, and establishes a communication channel between the main PON interface (100) and the first PON (20) or the second PON (30) according to the high level signal or the low level signal.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414878A (en) * | 2008-12-03 | 2009-04-22 | 烽火通信科技股份有限公司 | Method and apparatus for implementing trunk optical fiber rapid protection switching of EPON system |
| CN201821464U (en) * | 2009-08-05 | 2011-05-04 | 福建星网锐捷网络有限公司 | Exchange equipment |
| CN102801467A (en) * | 2012-08-20 | 2012-11-28 | 深圳市共进电子股份有限公司 | Device and method for implementing dual optical fiber protection switching based on ONU |
| CN106301538A (en) * | 2015-05-18 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of method realizing pretection switch and optical network unit |
| CN108631861A (en) * | 2018-03-21 | 2018-10-09 | 烽火通信科技股份有限公司 | Realize the GPON systems and pretection switch method of quick protective switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101552490B1 (en) * | 2014-06-09 | 2015-09-21 | (주)유비쿼스 | The dualized link port Optical Line Termination device, Passive Optical Network system for detecting received signal of standby line using standby port, and method of estimating stability of standby line |
-
2019
- 2019-01-29 CN CN201910087987.8A patent/CN109547877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414878A (en) * | 2008-12-03 | 2009-04-22 | 烽火通信科技股份有限公司 | Method and apparatus for implementing trunk optical fiber rapid protection switching of EPON system |
| CN201821464U (en) * | 2009-08-05 | 2011-05-04 | 福建星网锐捷网络有限公司 | Exchange equipment |
| CN102801467A (en) * | 2012-08-20 | 2012-11-28 | 深圳市共进电子股份有限公司 | Device and method for implementing dual optical fiber protection switching based on ONU |
| CN106301538A (en) * | 2015-05-18 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of method realizing pretection switch and optical network unit |
| CN108631861A (en) * | 2018-03-21 | 2018-10-09 | 烽火通信科技股份有限公司 | Realize the GPON systems and pretection switch method of quick protective switch |
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