KR102213236B1 - Compatible device for optical communication module - Google Patents

Abstract

According to the present invention, due to a signal conversion characteristic of first and second optical communication modules, which is a characteristic converting an optical signal into an electric signal or converting an electric signal into an optical signal, an optical communication module installed in external network communication equipment and an optical communication module installed in other external network communication equipment can perform smooth optical communication between each other without a compatibility issue. The present invention includes: a housing having a plurality of storage spaces: a first optical communication module stored in at least one of the storage spaces; and a second optical communication module electrically connected with the first optical communication module.

Description

Compatible device for optical communication module{COMPATIBLE DEVICE FOR OPTICAL COMMUNICATION MODULE}

The present invention relates to a compatible device for an optical communication module, and more specifically, to a compatible device for an optical communication module that enables an optical communication module mounted on an external network communication device to be compatible with an optical communication module mounted on another external network communication device. .

The 5G mobile communication service was piloted at the 2018 PyeongChang Winter Olympics, and commercialization of the 5G mobile communication is in full swing in 2019. In order to provide the 5G mobile communication service, a new infrastructure needs to be built, but it is desirable in terms of time and cost savings to maximize the use of the existing infrastructure. As one of the ways to utilize the existing infrastructure, rather than completely replacing the existing network communication equipment with new network communication equipment, prepare a compatible device that makes the optical communication module installed in the existing network communication equipment compatible with the optical communication module installed in other network communication equipment. You can consider how to do it.

In general, the optical communication module converts an optical signal into an electric signal or converts an electric signal into an optical signal. These optical communication modules are installed in network communication equipment for building an existing wired/wireless optical communication network such as an LTE optical communication network.

As an example of the optical communication module installed in the existing network communication equipment, there is a QSFP (Quad Small Form-factor Pluggable) optical communication module, which is a representative optical communication module of NOKIA. Meanwhile, a domestic telecommunications service provider is providing network communication equipment equipped with an SFP (Small Form-factor Pluggable) optical communication module to provide 5G mobile communication services. However, the optical signal transmitted by the QSFP optical communication module cannot be received by the SFP optical communication module due to compatibility issues, and only the QSFP optical communication module can receive the optical signal. Likewise, the optical signal transmitted by the SFP optical communication module cannot be received by the QSFP optical communication module due to compatibility issues, and only the SFP optical communication module can receive the optical signal. As described above, as the commercialization of the 5th generation mobile communication progresses, a compatibility problem between the QSFP optical communication module and the SFP optical communication module has emerged as a new problem.

Registered Patent Publication No.2001421 (2019.07.12.)

The present invention was conceived to solve the above problems, and an object of the present invention is to provide a compatible device for an optical communication module that enables an optical communication module mounted on a network communication device to be compatible with an optical communication module mounted on another network communication device. There is this.

In order to achieve the above object, a compatible device for an optical communication module according to the present invention includes: a housing provided with a plurality of accommodation spaces; A first optical communication module accommodated in at least one of the plurality of accommodation spaces; A second optical communication module accommodated in an accommodation space other than the one or more accommodation spaces and electrically connected to the first optical communication module; And a power supply for supplying power to the first optical communication module and the second optical communication module, wherein the first optical communication module converts an optical signal input from the outside into an electric signal and outputs it to the second optical communication module, The second optical communication module converts an electric signal input from the first optical communication module into an optical signal and outputs it to the outside, and the second optical communication module converts the optical signal input from the outside into an electric signal, and the first optical communication module And the first optical communication module converts an electric signal input from the second optical communication module into an optical signal and outputs it to the outside.

Here, the compatible device for an optical communication module according to the present invention includes: a communication switch unit connected to the first optical communication module and the second optical communication module; And a controller configured to obtain diagnostic information of the first optical communication module or the second optical communication module by performing communication with the first optical communication module or the second optical communication module through the communication switch unit.

Here, the diagnostic information may be at least one of a temperature, an applied voltage, and an optical power of the first optical communication module, or at least one of a temperature, an applied voltage, and an optical power of the second optical communication module.

Here, the compatible device for an optical communication module according to the present invention may further include a fan unit that is driven to decrease the temperature of the first optical communication module or the second optical communication module, and the control unit comprises the first optical communication module or the first optical communication module. 2 As a result of obtaining the temperature of the optical communication module, when it is determined that the temperature of the first optical communication module or the second optical communication module is equal to or higher than a preset temperature, the fan may be driven.

Here, the compatible device for an optical communication module according to the present invention may further include a communication interface unit for transmitting diagnostic information obtained by the control unit to an external network communication device.

On the other hand, the compatible device for an optical communication module according to the present invention is provided between the first optical communication module and the second optical communication module, the loss compensation unit for compensating for data loss between the first optical communication module and the second optical communication module. It may contain more.

Here, a compatible device for an optical communication module according to the present invention includes: a communication switch unit connected to the first optical communication module, the second optical communication module, and the loss compensation unit; And a control unit configured to communicate with the first optical communication module, the second optical communication module, or the loss compensation unit through the communication switch unit to obtain diagnostic information of the first optical communication module, the second optical communication module, or the loss compensation unit. It may contain more.

Here, the diagnostic information is at least one of a temperature of the first optical communication module, an applied voltage, and an optical power, or at least one of a temperature, an applied voltage, and an optical power of the second optical communication module, or the temperature of the loss compensator or It may be an applied voltage.

Here, the compatible device for an optical communication module according to the present invention may further include a fan unit driven to reduce a temperature of the first optical communication module, the second optical communication module, or the loss compensation unit, and the control unit includes the first optical communication module. When it is determined that the temperature of the first optical communication module, the second optical communication module, or the loss compensation unit is higher than a preset temperature as a result of obtaining the temperature of the module, the second optical communication module, or the loss compensation unit, the fan unit is driven. I can.

Here, the compatible device for an optical communication module according to the present invention may further include a communication interface unit for transmitting diagnostic information obtained by the control unit to an external network communication device.

According to the present invention, the optical communication installed in the external network communication equipment by the signal conversion characteristics of the first optical communication module and the second optical communication module, that is, converting an optical signal into an electric signal or converting an electric signal into an optical signal. The optical communication module mounted on the module and other external network communication equipment enables smooth optical communication with each other without compatibility problems.

1 is a view showing a compatible device for an optical communication module according to the present invention.
2 is a view showing a first embodiment in which a compatible device for an optical communication module according to the present invention is utilized.
3 is a view showing a second embodiment in which a compatible device for an optical communication module according to the present invention is utilized.
4 is a view showing a third embodiment in which a compatible device for an optical communication module according to the present invention is utilized.

Hereinafter, a compatible device for an optical communication module according to the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are provided by way of example in order to sufficiently convey the technical idea of the present invention to those skilled in the art, and the present invention is not limited to the drawings presented below and may be embodied in any other form. have.

1 is a view showing a compatible device for an optical communication module according to the present invention, Figure 2 is a view showing a first embodiment in which the compatible device for an optical communication module according to the present invention is utilized. 1 and 2, the compatible device 1000 for an optical communication module according to the present invention includes a housing 50, a first optical communication module 100, a second optical communication module 200, and a power supply unit 300. Can include.

The housing 50 is provided with a plurality of accommodation spaces in which the optical communication modules 100 and 200 are accommodated, and the optical communication modules 100 and 200 may be detachably inserted and coupled to each accommodation space of the housing 50. 1 shows that there are five accommodation spaces in which the optical communication modules 100 and 200 are accommodated, but the number of accommodation spaces can be changed as much as necessary.

The first optical communication module 100 is accommodated in one or more of a plurality of accommodation spaces, and converts an optical signal input thereto into an electric signal, or converts an electric signal input thereto into an optical signal.

The first optical communication module 100 may be, for example, a Quad Small Form-factor Pluggable (QSFP) optical communication module. The QSFP optical communication module has four channels, and may convert an optical signal into an electrical signal or an electrical signal into an optical signal at a rate of 10 Gbps through each channel. That is, the QSFP optical communication module may convert an optical signal into an electrical signal or an electrical signal into an optical signal at a total speed of 40 Gbps.

The second optical communication module 200 is accommodated in an accommodation space other than one or more accommodation spaces in which the first optical communication module 100 is accommodated among a plurality of accommodation spaces. Like the first optical communication module 100, the second optical communication module 200 converts an optical signal input thereto into an electric signal, or converts an electric signal input thereto into an optical signal.

The second optical communication module 200 may be, for example, a small form-factor pluggable (SFP) optical communication module. The SFP optical communication module has one channel, and may convert an optical signal into an electric signal or convert an electric signal into an optical signal at a rate of 10 Gbps through the one channel.

When the first optical communication module 100 and the second optical communication module 200 are inserted and coupled to the accommodation space of the housing 50, the first optical communication module 100 and the second optical communication module 200 are attached to the housing 50. They may be electrically connected to each other by an electrical pattern provided.

In FIG. 1, the first optical communication module 100 is inserted and coupled to one of the five accommodation spaces of the housing 50, and the second optical communication module 200 is 4 of the five accommodation spaces of the housing 50. It is shown that the dog is inserted into the receiving space. In this case, data output from one first optical communication module 100 is divided and input from the four second optical communication modules 200, and on the contrary, data output from the four second optical communication modules 200 is one It is simultaneously input from the first optical communication module 100.

The power supply unit 300 may include a connector (not shown) connected to an external power supply device, and a DC-DC converter (not shown) that converts power supplied from the external power supply device. The power supply unit 300 may supply power to the first optical communication module 100 and the second optical communication module 200 to operate them, and a loss compensation unit 400, a communication switch unit 500, and a control unit 600 to be described later. ) Can also be operated by supplying power.

As shown in FIG. 2, the external network communication device 10 located outside the compatible device 1000 for an optical communication module may be equipped with a QSFP optical communication module 1, and an external network communication device 10' The SFP optical communication module 2'may be mounted.

However, the optical signal transmitted by the QSFP optical communication module 1 of the external network communication device 10 cannot be received by the SFP optical communication module 2 ′ of the other external network communication device 10 ′ due to compatibility issues. Only the QSFP optical communication module can receive the optical signal. Similarly, the optical signal transmitted by the SFP optical communication module 2'of the external network communication device 10' cannot be received by the QSFP optical communication module 1 of the other external network communication device 10 due to compatibility issues, Only the SFP optical communication module can receive the optical signal. Accordingly, the compatible device 1000 for an optical communication module according to the present invention is different from the external network communication equipment 10 so that smooth optical communication can be achieved between the external network communication equipment 10 and other external network communication equipment 10 ′. It may be disposed between the external network communication equipment (10').

The QSFP optical communication module 1 of the external network communication device 10 can output an optical signal loaded with data, and the optical signal output from the QSFP optical communication module 1 is a first optical communication through an optical fiber. It may be input to the module 100.

In this case, the first optical communication module 100 may convert an optical signal input from the outside into an electric signal and output it to the second optical communication module 200. That is, the electric signal converted by the first optical communication module 100 may be transmitted to the second optical communication module 200 through an electrical pattern.

In this case, the second optical communication module 200 may convert an electric signal input from the first optical communication module 100 into an optical signal and output it to the outside. That is, the optical signal converted by the second optical communication module 200 may be transmitted to the external network communication device 10'. Since the external network communication device 10 ′ is equipped with the SFP optical communication module 2 ′, the optical signal output from the second optical communication module 200 is SFP optical communication module 2 ′ of the external network communication device 10 ′. ) Can be entered without compatibility problems.

Conversely, the SFP optical communication module 2'of the external network communication device 10' may output an optical signal carrying data, and the optical signal output from the SFP optical communication module 2'is controlled through an optical fiber. 2 It may be input to the optical communication module 200.

In this case, the second optical communication module 200 may convert an optical signal input from the outside into an electric signal and output it to the first optical communication module 100. That is, the electric signal converted by the second optical communication module 200 may be transmitted to the first optical communication module 100 through an electrical pattern.

In this case, the first optical communication module 100 may convert an electrical signal input from the second optical communication module 200 into an optical signal and output it to the outside. That is, the optical signal converted by the first optical communication module 100 may be transmitted to the external network communication device 10. Since the external network communication equipment 10 is equipped with the QSFP optical communication module 1, the optical signal output from the first optical communication module 100 is a compatibility problem with the QSFP optical communication module 1 of the external network communication equipment 10. Can be entered without.

As described above, according to the compatible device 1000 for an optical communication module according to the present invention, the signal conversion characteristics of the first optical communication module 100 and the second optical communication module 200, that is, converting an optical signal into an electric signal, or The optical communication module 1 mounted on the external network communication equipment 10 and the optical communication module 2 ′ mounted on the other external network communication equipment 10 ′ are mutually It becomes possible to perform smooth optical communication.

On the other hand, noise may be generated in the electrical pattern electrically connecting the first optical communication module 100 and the second optical communication module 200, and thus, flowing from the first optical communication module 100 to the second optical communication module 200 Noise may be included in the electric signal or the electric signal flowing from the second optical communication module 200 to the first optical communication module 100.

As described above, the first optical communication module 100 converts the electrical signal input from the second optical communication module 200 into an optical signal and outputs the converted optical signal to the outside, and the second optical communication module 200 includes the first optical communication module 100. ) Converts an optical signal and outputs the optical signal to the outside. When noise is included in the electrical signal, the optical signal output to the outside is distorted, resulting in distortion of the data included in the optical signal.

Accordingly, it is preferable to provide a loss compensation unit 400 between the first optical communication module 100 and the second optical communication module 200. The loss compensating unit 400 may be formed of or include a clock and data recovery (CDR), and may reduce data loss due to noise that may be included between the first optical communication module 100 and the second optical communication module 200. It serves to compensate. Through this loss compensation unit 400, more accurate data transmission and reception can be performed between the external network communication devices 10 and 10'.

Meanwhile, a communication switch unit 500 connected to the first optical communication module 100 and the second optical communication module 200 may be provided in the housing 50. In addition, the communication switch unit 500 may also be connected to the loss compensation unit 400. The communication switch unit 500 serves as a bridge connecting the control unit 600 to the first optical communication module 100, the second optical communication module 200, and the loss compensation unit 400, respectively. For this bridging role, the communication switch unit 500 may be made of or include a PCA9548 chip.

The control unit 600 communicates with the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 through the communication switch unit 500, so that the first optical communication module 100, 2 Acquire diagnostic information of the optical communication module 200 or the loss compensation unit 400. The control unit 600 may be formed of or include a micro controller unit (MCU).

Specifically, the control unit 600 communicates with the first optical communication module 100 through the communication switch unit 500 to provide diagnostic information of at least one of temperature, applied voltage, and optical power of the first optical communication module 100. Can be obtained. And the control unit 600 communicates with the second optical communication module 200 through the communication switch unit 500 to obtain diagnostic information of at least one of temperature, applied voltage, and optical power of the second optical communication module 200. can do. In addition, the control unit 600 may communicate with the loss compensation unit 400 through the communication switch unit 500 to obtain diagnostic information such as a temperature or an applied voltage of the loss compensation unit 400.

The compatible device 1000 for an optical communication module according to the present invention may include a fan unit 700 that is driven to reduce the temperature of the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400. have. In addition, the upper limit temperature of the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 may be preset in the control unit 600. Here, the upper limit temperature of the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 means the first optical communication module 100, the second optical communication module 200, or the loss compensation unit. It means the maximum temperature at which the 400 can operate normally, and at a temperature higher than this, the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 operates abnormally due to heat generation. Or failure may occur.

The controller 600 may obtain the temperature of the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 through the communication switch unit 500. As a result of the control unit 600 obtaining the temperature of the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400, the first optical communication module 100, the second optical communication module 200, or When it is determined that the temperature of the loss compensating unit 400 is equal to or higher than the temperature preset in the control unit 600, the control unit 600 may drive the fan unit 700 by transmitting a driving signal to the fan unit 700.

When the fan unit 700 is driven by the control unit 600, the temperature of the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 may be reduced. The failure rate of the optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 may be reduced, and a normal operation may also be guaranteed.

On the other hand, when the diagnostic information obtained by the control unit 600 is transmitted to the external network communication equipment (10, 10'), the operator of the external network communication equipment (10, 10') is the first optical communication module 100, 2 It is possible to easily know whether the optical communication module 200 or the loss compensation unit 400 operates normally. Accordingly, it is preferable that the communication interface unit 800 for transmitting diagnostic information obtained by the control unit 600 to the external network communication equipment 10 and 10' is provided in the compatible device 1000 for an optical communication module.

The diagnostic information acquired by the control unit 600 may be transmitted to the external network communication equipment 10 and 10 ′ through the communication interface unit 800. In this case, the operator of the external network communication equipment (10, 10') determines whether the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 operates normally, and replacement of these parts is not possible. If necessary, the first optical communication module 100, the second optical communication module 200, or the loss compensation unit 400 may be replaced. In particular, since the first optical communication module 100 and the second optical communication module 200 are parts that are detachably inserted and coupled to the housing 500, a failure occurs in the first optical communication module 100 and the second optical communication module 200. If it occurs, it can be easily replaced.

3 is a view showing a second embodiment in which a compatible device for an optical communication module according to the present invention is utilized, and FIG. 4 is a view showing a third embodiment in which a compatible device for an optical communication module according to the present invention is utilized. Hereinafter, an example in which the compatible device for an optical communication module according to the present invention is used will be described with reference to FIGS. 3 and 4.

When the first optical communication module 100 is a QSFP optical communication module, the transmission distance of the optical signal output from the QSFP optical communication module is about 10 km. In contrast, when the second optical communication module 200 is an SFP optical communication module, the transmission distance of the optical signal output from the SFP optical communication module is about 40 km, which is longer than that of the QSFP optical communication module.

Since the transmission distance of the optical signal output from the SFP optical communication module is longer than the transmission distance of the optical signal output from the QSFP optical communication module, the external network communication equipment 30 and the external network located at a distance from each other by utilizing this point In order to perform optical communication between the communication equipment 30 ′, the compatible devices 1000 and 1000 ′ for optical communication modules according to the present invention may be used.

Specifically, as shown in FIG. 3, the external network communication device 30 may be equipped with a QSFP optical communication module 3, and the external network communication device 30' is equipped with a QSFP optical communication module 3'. Can be. In this case, the first optical communication module 100 of the optical communication module compatible device 1000 may be connected to the QSFP optical communication module 3 of the external network communication device 30 through an optical fiber, and the compatible device 1000 for an optical communication module The second optical communication module 200 of may be connected to the second optical communication module 200 ′ of the compatible device 1000 ′ for an optical communication module through an optical fiber. In addition, the first optical communication module 100 ′ of the compatible device 1000 ′ for an optical communication module may be connected to the QSFP optical communication module 3 ′ of the external network communication device 30 ′ through an optical fiber.

By connecting the optical communication modules in this way, the transmission distance of the optical signal can be greatly increased, and accordingly, smooth optical communication between the external network communication equipment 30 and the external network communication equipment 30 ′ is possible even if they are located at a distance from each other. It becomes possible. That is, the transmission distance of the optical signal output from the QSFP optical communication module is only about 10km, but the transmission distance of the optical signal output from the SFP optical communication module is about 40km, which is relatively long, so the transmission distance of the optical signal is particularly large due to the SFP optical communication module. Can be increased.

As another example, as shown in FIG. 4, the external network communication device 40 may be equipped with an SFP optical communication module 4, and the external network communication device 40' includes an SFP optical communication module 4'. May be equipped. In this case, the second optical communication module 200 of the optical communication module compatible device 1000 may be connected to the SFP optical communication module 4 of the external network communication device 40 through an optical fiber, and the compatible device 1000 for an optical communication module The first optical communication module 100 of may be connected to the first optical communication module 100 ′ of the compatible device 1000 ′ for an optical communication module through an optical fiber. In addition, the second optical communication module 200 ′ of the compatible device 1000 ′ for an optical communication module may be connected to the QSFP optical communication module 4 ′ of the external network communication device 40 ′ through an optical fiber.

By connecting the optical communication modules in this way, the transmission distance of the optical signal can be greatly increased, and accordingly, smooth optical communication between the external network communication equipment 40 and the external network communication equipment 40' is possible even if they are located at a distance from each other. It becomes possible. That is, the transmission distance of the optical signal output from the QSFP optical communication module is only about 10km, but the transmission distance of the optical signal output from the SFP optical communication module is about 40km, which is relatively long, so the transmission distance of the optical signal is particularly large due to the SFP optical communication module. Can be increased.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and variations are made from these descriptions to those of ordinary skill in the field to which the present invention pertains. It is possible. Therefore, the technical idea of the present invention should be grasped only by the claims, and all equivalent or equivalent modifications thereof will be said to belong to the scope of the technical idea of the present invention.

50: housing
100: first optical communication module
200: second optical communication module
300: power supply
400: loss compensation unit
500: communication switch unit
600: control unit
700: fan unit
800: communication interface unit

Claims (10)

A housing provided with a plurality of accommodation spaces;
A first optical communication module accommodated in at least one of the plurality of accommodation spaces;
A second optical communication module accommodated in an accommodation space other than the one or more accommodation spaces and electrically connected to the first optical communication module; And
A power supply unit that includes a connector connected to an external power supply device and supplies power from the external power supply device to the first optical communication module and the second optical communication module, and includes,
The first optical communication module converts an optical signal input from the outside into an electric signal and outputs it to the second optical communication module, and the second optical communication module converts the electric signal input from the first optical communication module into an external signal. Output as
The second optical communication module converts an optical signal input from the outside into an electric signal and outputs it to the first optical communication module, and the first optical communication module converts the electric signal input from the second optical communication module into an external signal. Output as,
The first optical communication module is a QSFP optical communication module having four channels, the second optical communication module is an SFP optical communication module having one channel,
The first optical communication module is insertedly coupled to one of the receiving spaces of the housing, and the second optical communication module is inserted and coupled to four of the receiving spaces of the housing
The first optical communication module and the second optical communication module are electrically connected to each other by an electrical pattern provided in the housing, and data output from the first optical communication module inserted and coupled to the one accommodation space is the four accommodation spaces. The data output from the second optical communication module inserted into and coupled to the second optical communication module is divided into and input from the second optical communication module inserted into and coupled to the four receiving spaces are simultaneously input from the first optical communication module inserted and coupled to the one receiving space Compatible device for optical communication module, characterized in that.
The method of claim 1,
A communication switch unit connected to the first optical communication module and the second optical communication module; And
A compatible device for an optical communication module, further comprising a control unit for performing communication with the first optical communication module or the second optical communication module through the communication switch unit to obtain diagnostic information of the first optical communication module or the second optical communication module.
The method of claim 2,
The diagnostic information is at least one of a temperature of the first optical communication module, an applied voltage, and an optical power, or at least one of a temperature, an applied voltage, and an optical power of the second optical communication module.
The method of claim 3,
Further comprising a fan that is driven to reduce the temperature of the first optical communication module or the second optical communication module,
When it is determined that the temperature of the first optical communication module or the second optical communication module is equal to or higher than a preset temperature as a result of obtaining the temperature of the first optical communication module or the second optical communication module, the control unit drives the fan unit. Compatible device for optical communication module, characterized in that.
The method of claim 2,
Compatible device for an optical communication module further comprising a communication interface unit for transmitting the diagnostic information obtained by the control unit to an external network communication device.
The method of claim 1,
A compatible device for an optical communication module further comprising a loss compensation unit provided between the first optical communication module and the second optical communication module to compensate for data loss between the first optical communication module and the second optical communication module.
The method of claim 6,
A communication switch unit connected to the first optical communication module, the second optical communication module, and the loss compensation unit; And
A control unit configured to perform communication with the first optical communication module, the second optical communication module, or the loss compensation unit through the communication switch unit to obtain diagnostic information of the first optical communication module, the second optical communication module, or the loss compensation unit. Compatible device for optical communication module including.
The method of claim 7,
The diagnostic information is at least one of a temperature of the first optical communication module, an applied voltage, and an optical power, or at least one of a temperature, an applied voltage, and an optical power of the second optical communication module, or a temperature or an applied voltage of the loss compensation unit Compatible device for an optical communication module, characterized in that.
The method of claim 8,
The first optical communication module, the second optical communication module, or further comprises a fan that is driven to reduce the temperature of the loss compensation unit,
As a result of obtaining the temperature of the first optical communication module, the second optical communication module, or the loss compensation unit, the control unit determines that the temperature of the first optical communication module, the second optical communication module, or the loss compensation unit is equal to or higher than a preset temperature. In this case, a compatible device for an optical communication module, characterized in that driving the fan unit.
The method of claim 7,
Compatible device for an optical communication module further comprising a communication interface unit for transmitting the diagnostic information obtained by the control unit to an external network communication device.

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