KR101160448B1 - Apparatus and method for remote power control based on ethernet or PONpassive optical network - Google Patents

Abstract

The present invention provides an Ethernet or PON-based remote power control device and method capable of quickly restoring the equipment when the remote equipment of the lower stage is taken out in an abnormal state. The remote power control device includes an upper end device having a remote control signal generator for generating a remote control signal for initializing power of a remote device of a subscriber side in an Ethernet or PON based communication system; And a remote device having a power initialization signal generator for generating a power initialization signal based on the remote control signal.

Description

Apparatus and method for remote power control based on ethernet or PON (passive optical network)}

The present invention relates to a communication system using an Ethernet or PON communication scheme, and more particularly, to an apparatus and method for remotely controlling a lower end system.

At the economic and environmental level, there is a growing interest in low-power design and eco-friendly IT technologies. Accordingly, efforts have been made to steadily increase the utilization of Ethernet switches and terminal devices connected via Ethernet. In particular, in the Ethernet communication system, efforts are being made to stably provide communication services to subscribers through efficient management of network equipment connected to the Internet, and to minimize economic loss in management.

An object of the present invention is to provide an Ethernet or PON-based remote power control device and method that can quickly restore the equipment when the remote equipment of the lower stage is in an abnormal state.

In order to solve the above problems, the present invention is an Ethernet or PON-based communication system, the upper end device having a remote control signal generator for generating a remote control signal for initializing the power of the remote equipment of the subscriber side; And a remote device having a power initialization signal generator for generating a power initialization signal based on the remote control signal.

In one embodiment of the invention, the upper end equipment, the remote control signal generator; Upper stage Medium Access Control (MAC) function; Upper stage optical transmitter; Watch-dog clear signal generator; And a controller; wherein the remote equipment comprises: a power supply unit (PSU); At least one uplink module; And a main board.

The uplink module may include a lower end optical transmitter and receiver for transmitting and receiving optical signal data with the upper end equipment; A remote control signal confirming unit connected to the lower optical transmitter and generating a confirmation signal by checking the remote control signal through a Loss of Signal (LOS) channel; A lower stage MAC function unit connected to the lower stage optical transceiver and processing an Ethernet or PON protocol; A watch-dog signal generator connected to the lower MAC function unit and generating a watch-dog signal according to whether the watch-dog clear signal is received; And the power initialization signal generator connected to at least one of the remote control signal confirmation unit and the watchdog signal generator, and generating the power initialization signal by at least one of the confirmation signal and the watchdog signal. It can include;

In addition, the uplink module, the lower end optical transceiver for transmitting and receiving optical signal data with the upper end equipment; A lower stage MAC function unit connected to the lower stage optical transceiver and processing an Ethernet or PON protocol; A watch-dog signal generator connected to the lower MAC function unit and generating a watch-dog signal according to whether the watch-dog clear signal is received; A remote control signal confirmation unit connected to the lower MAC function unit and configured to check the remote control signal to generate a confirmation signal; And the power initialization signal generator connected to at least one of the remote control signal confirmation unit and the watchdog signal generator, and generating the power initialization signal by at least one of the confirmation signal and the watchdog signal. And the remote control signal checking unit may check whether the remote control signal exists for all signals received.

The present invention also in order to solve the above problems, in the communication method by Ethernet or PON based communication system, in the upper end equipment, generating a remote control signal for initializing the power of the remote equipment of the subscriber side, the remote signal Transmitting a control signal to the remote equipment; And initializing the remote device by resetting a power supply by checking the remote signal control signal, and providing an Ethernet or PON-based remote power control method.

In one embodiment of the present invention, the step of transmitting to the remote equipment, the watchdog clear signal for clearing the counter of the watch-dog signal generation unit provided in the remote equipment, the remote equipment to the remote equipment Including the transmitting, and the step of initializing the remote device, the watch-dog signal generated from the watch-dog signal generation unit when the watch-dog clear signal is not received at the remote device, the power source Resetting the supply.

The remote signal control signal is transmitted to the remote device through a LOS channel, or transmitted to the remote device through a data transmission / reception channel, and transmitted to the remote device through the data transmission / reception channel, all received at the remote device. With respect to the signal, it can be checked whether the remote control signal exists.

In one embodiment of the present invention, the remote equipment includes at least one uplink module for communicating with the upper end equipment, and the remote signal control when the uplink module communicates with the upper end equipment. The power supply may be reset based on the signal, and the power supply may be reset by the watchdog signal when the uplink module is unable to communicate with the upper end device.

The Ethernet or PON-based remote power control apparatus and method according to the present invention can quickly initialize a remote system remotely without on-site dispatch when the remote equipment is suspended. In addition, even when the uplink module of the remote equipment is stopped, the watchdog function may be used to initialize the power of the remote system.

As a result, it is possible to reduce the economic loss caused by maintenance personnel coming into the field and performing power on / off, and to solve the inconvenience of interrupting communication service to the subscriber during the time, thereby providing stable communication service. have.

1A and 1B are general network structure diagrams of an Ethernet or PON communication system.
Figure 2a is a block diagram showing the structure of the L3 switch or OLT of the Ethernet or PON-based remote power control device according to an embodiment of the present invention.
Figure 2b is a block diagram showing the structure of the L3 switch or OLT of the Ethernet or PON-based remote power control device according to an embodiment of the present invention.
3 is a block diagram illustrating a structure of an L2 switch or an ONU of an Ethernet or PON based remote power control device according to an embodiment of the present invention.
4A is a block diagram illustrating in more detail an uplink module employed in the L2 switch or ONU of FIG. 3.
4B is a block diagram illustrating in more detail an uplink module having another structure employed in the L2 switch or the ONU of FIG. 3.
FIG. 5 is a signal waveform diagram illustrating a pattern of a remote control signal that may be generated by a remote control signal generator of the Ethernet or PON based remote power control device of FIG. 2A or 2B.
FIG. 6 is a block diagram illustrating the power supply of the L2 switch or the ONU of FIG. 3 in more detail.
7 is a block diagram illustrating in more detail the structure of the watch-dog signal generator of the uplink module of FIG. 4A or 4B.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, when a component is described as being connected to another component, it may be directly connected to another component, and a third component may be interposed therebetween. In addition, in the drawings, each component is omitted or exaggerated for convenience and clarity of description, the same reference numerals in the drawings refer to the same elements. It is to be understood that the terminology used is for the purpose of describing the present invention only and is not used to limit the scope of the present invention.

1A and 1B are general network structure diagrams of an Ethernet or PON communication system.

1A and 1B, in an Ethernet communication system, as shown in FIG. 1A, a plurality of layer 2, that is, L2 switches 100 are connected to a layer 3 switch, that is, an L3 switch 200, connected to another external network. It is connected through an unshielded twisted pair (UTP) cable, a copper wire, and the like, and has a structure in which communication devices of subscribers are connected to each L2 switch 100 through a UTP cable.

In addition, the Ethernet communication system uses an optical cable type called FTTH (Fiber To The Home), that is, in the case of a passive optical network (PON), a plurality of ONU / ONT (Optical) devices are connected to an optical line terminal (OLT) 200a connected to another external network. Network Unit / Optical Network Terminal, 100a) may be connected via an optical cable, and communication devices of subscribers may be connected to each ONU / ONT 100a through a UTP cable. The ONU is also referred to as a multi-dwelling unit (MDU) ONU in the sense that it is applied to multi-family apartments.

On the other hand, the L2 switch 100 or ONU / ONT 100a located at the subscriber side as a lower stage of the Ethernet communication system stops functioning of the equipment due to an internal S / W defect or external environmental factors. The problem often arises that subscriber service becomes impossible.

If the remote device is lost in abnormal state, it may be caused by abnormal operation of hardware as well as abnormal operation of software.In this way, if the device operates in abnormal state, restore the device to normal state. There is no technical way to do this. Accordingly, in order to restore the device normally, there is a method of resetting the device by initializing it or restoring it to the initial state by turning the power off and on.

On the other hand, there may be a case that a complete restoration may not be possible simply by resetting the corresponding device, but in general, a function stop of a remote device may be easily restored to a normal state by resetting the remote device. .

The present invention, in connection with the above-described malfunction of the lower stage equipment, proposes a method of immediately resolving a problem, reducing the cost of dispatching a technician and restoring the subscriber service immediately. That is, in the present invention, when the remote device is abnormally operated, the device is normally operated by turning off the power of the abnormally operated device in a higher level device connected to the corresponding device and turning it back on in hardware. In addition, by remotely turning off the power to the hardware itself, and then turn it on again, the equipment operates normally.

Accordingly, the present invention reduces the downtime of service due to a failure in the communication system by eliminating the case where a person has to go to a place where the device is in order to recover the abnormal device and reset or turn off and on the power. You can reduce the OPEX (Operating Expenses) required for your system.

Hereinafter, for convenience of description, equipment constituting the L3 switch or OLT is referred to collectively as 'upper equipment', and equipment constituting the L2 switch or ONU / ONT is collectively referred to as 'remote equipment'.

Figure 2a is a block diagram showing the structure of the upper end of the Ethernet or PON-based remote power control device according to an embodiment of the present invention.

Referring to FIG. 2A, the upper stage equipment 200 according to the present embodiment, that is, the L3 switch or the OLT, includes the remote control signal generator 210, the watch-dog clear signal generator 230, and the upper stage MAC. (Medium Access Control) may include a function unit 250, an upper stage optical transmitter 270, and a controller 290.

The remote control signal generator 210 generates a remote control signal for initializing the power of a remote equipment (not shown) under the control of the controller 290, and through the physical channel such as a management cable channel, an upper end optical transceiver Forward to 270. Details of the remote control signal will be described in more detail in the description with reference to FIG. 5.

The watch-dog clear signal generator 230 generates a watch-dog clear signal for clearing the counter of the watch-dog signal generator provided in the remote equipment (not shown) under the control of the controller 290, thereby generating a higher MAC function. Transfer to section 250.

The upper end MAC function unit 250 processes the Ethernet or PON protocol at the upper end, and the upper end optical transmitter 270 is connected to the upper end MAC function 250 and the remote control signal generator 210, and the lower end. Transmits and receives optical signal data with remote equipment, and transmits remote control signal and watch-dog clear signal to remote equipment. Here, the upper stage MAC function unit 250 may be a MAC function unit used for GEPON or GPON, 10GEPON, and XGPON.

On the other hand, the control unit 290 generally controls the respective components of the upper-end equipment 200.

The high-end equipment 200 in this embodiment generates a remote control signal for initializing the remote equipment, transmits the remote control signal to the remote equipment, and initializes the remote equipment so that the technician directly exists. By immediately initializing the remote equipment and restoring to a normal state without going to a place, it is possible to solve the economic loss caused by the dispatch and the inconvenience that the communication service to the subscriber is interrupted during the dispatch time. Initializing the remote device through the remote control signal will be described in more detail in the description of FIG. 4A.

Figure 2b is a block diagram showing the upper equipment of the Ethernet or PON-based remote power control device according to an embodiment of the present invention. For convenience, only the parts distinguished from the upper end equipment 200 of FIG. 2A will be described, and the same parts will be omitted.

Referring to FIG. 2B, the upper end equipment 200a of the present embodiment may include the same components as those of FIG. 2A. However, the remote control signal generated by the remote control signal generator 210a is not transmitted through a physical channel, but through a channel through which general optical signal data is transmitted. Accordingly, in FIG. 2B, it can be seen that the signal flow arrow from the remote control signal generator 210a is connected to the upper MAC function unit 250. The contents of initializing the remote equipment through the remote control signal according to the present embodiment will be described in more detail in the description of FIG. 4B.

Figure 3 is a block diagram showing the structure of the remote equipment of the Ethernet or PON-based remote power control device according to an embodiment of the present invention.

Referring to FIG. 3, the remote device 100 of the present embodiment, that is, the L2 switch or the ONU / ONT is an uplink module 110, a main board 130, and a power supply unit. PSU 150). The uplink module 110 is responsible for communication with the upper end equipment, and the main board 130 distributes communication functions to each subscriber port 170 and collects communication functions from each subscriber port 170. do. On the other hand, the power supply device 150 supplies power to the entire remote equipment.

The uplink module 110 in this embodiment is composed of two structures or a combination of the two structures as shown in Figures 4a and 4b below, the remote control signal or watch-dog clear signal from the upper end equipment Received, by generating a power initialization signal to pass to the power supply 150, to perform the power initialization of the remote equipment 100.

4A is a block diagram illustrating in more detail an uplink module employed in the L2 switch or ONU of FIG. 3.

Referring to FIG. 4A, the uplink module 110 of the present embodiment includes a lower end optical transmitter 111, a lower end MAC function unit 113, a remote control signal check unit 115, and a watchdog signal generator 117. ) And a power initialization signal generator 119, and this uplink module may correspond to the upper end equipment of FIG. 2A.

The lower stage optical transmitter 111 transmits and receives optical signal data to and from the upper stage equipment, and the lower stage MAC function unit 113 is connected to the lower stage optical transmitter 111 to process the Ethernet or PON protocol of the lower stage.

The remote control signal checking unit 115 is connected to the lower end optical transmitter 111 and checks whether there is a remote control signal transmitted from the upper end device through a Loss of Signal (LOS) channel, which is a physical channel. In general, even if the remote equipment stops functioning, the uplink module operates to transmit and receive optical signal data, but the physical channel often operates as it is. Accordingly, the remote control signal checking unit 115 may check the remote control signal through the LOS channel.

When the remote control signal confirming unit 115 confirms the remote control signal, the remote control signal confirming unit 115 generates a confirmation signal or a signal generating command and transmits it to the power initialization signal generating unit 119.

The watchdog signal generator 117 is connected to the lower stage MAC function unit 113 to generate a watchdog signal according to the presence or absence of a watchdog clear signal transmitted from the upper stage equipment, thereby providing a power initialization signal generator ( 119). The watch-dog signal generator 117 will be described in more detail in the description of FIG. 7.

The power initialization signal generator 119 receives the confirmation signal or the watch-dog signal from the remote control signal check unit 115 or the watch-dog signal generator 117 to generate a power initialization signal through the main board 130. Transfer to the power supply 150. Usually, the power initialization signal generator 119 generates the power initialization signal by either of the confirmation signal and the watch-dog signal. However, in some cases, the power initialization signal may occur even when both signals are simultaneously input.

When the power initialization signal is transmitted to the power supply device 150, a power reset is performed in the power supply device 150 to initialize the remote equipment.

Here, the Daning Gasp function unit 116 functions to notify the upper stage equipment that the power supply is cut off.

4B is a block diagram illustrating in more detail an uplink module having another structure employed in the L2 switch or the ONU of FIG. 3. For convenience, only parts distinguished from the uplink module 110 of FIG. 4A will be described, and descriptions of the same parts will be omitted.

Referring to FIG. 4B, the uplink module 110a of the present embodiment may include the same components as the uplink module 110 of FIG. 4A. However, the remote control signal checking unit 115a checks the remote control signal through the normal data transmission / reception channel instead of checking the remote control signal through the LOS channel. The uplink module 110 of the present embodiment may correspond to the upper stage equipment of FIG. 2B.

In the present embodiment, since the remote control signal is transmitted through the data transmission / reception channel like other general optical signal data, the remote control signal checking unit 115a is connected to the lower stage MAC function unit 113 and the lower stage MAC function unit. And find the remote control signal in the data of 113. Accordingly, since all the data transmitted from the remote equipment must be analyzed to detect the corresponding remote control signal, the signal pattern of the remote control signal is slightly complicated to avoid confusion between other normal data signals and the remote control signal. It is desirable to. Alternatively, by repeatedly inputting a specific pattern a predetermined number of times, it is possible to facilitate remote control signal determination. For example, while monitoring data received through the lower stage MAC function unit 113, when a specific pattern is detected three or more times in succession, it may be determined as a remote control signal to generate a power initialization signal.

In the present embodiment, even when the remote equipment normally operates, when the remote equipment needs to be initialized due to any special circumstances, the remote control signal is transmitted through the data transmission / reception channel like other optical signal data, and then the remote equipment Can be used to force the initialization.

Meanwhile, in FIGS. 4A and 4B, the remote control signal confirming unit is configured to confirm the remote control signal using either the LOS channel or the normal data transmission / reception channel, but the remote control signal confirming unit uses both channels. Of course, it can also be configured to confirm the signal.

FIG. 5 is a signal waveform diagram illustrating a pattern of a remote control signal that may be generated by a remote control signal generator of the Ethernet or PON based remote power control device of FIG. 2A or 2B.

Referring to FIG. 5, the remote control signal generator (210 of FIG. 2A or 210a of FIG. 2B) of the present embodiment may generate a signal waveform as shown as a remote control signal.

On the other hand, when transmitting a remote control signal using a normal data channel as shown in Figures 2b and 4b, there is a possibility that it may be confused with other data signals, accordingly, recognizes the normal data as a remote control signal to initialize the remote equipment There is a possibility. Accordingly, when transmitting a remote control signal using a normal data channel, the remote control signal is generated in a slightly complicated or special form so as not to be confused with other general data signals or by continuously transmitting a predetermined pattern. Can be passed. For example, when the illustrated signal waveform is repeated three or more times in succession, it may be recognized as a remote control signal.

The signal waveform shown is merely one example, and can be generated to generate a remote control signal with other various signal waveforms, and can be configured to recognize a continuous repetition of such signals as a remote control signal.

FIG. 6 is a block diagram illustrating the power supply of the L2 switch or the ONU of FIG. 3 in more detail.

Referring to FIG. 6, the power supply device 150 of the present embodiment may include a power initialization execution signal generator 151 and a power reset execution unit 153. The power initialization execution signal generator 151 receives the power initialization signal transmitted from the power initialization signal generator 119, generates a power initialization execution signal, and the power reset execution unit 153 according to the power initialization execution signal. Perform a power reset to initialize the remote device's power.

In this embodiment, although the power initialization execution signal generator 151 and the power reset execution unit 153 are disposed in the power supply device 150, the power reset execution unit 153 immediately receives the power initialization signal and resets the power. Of course, it can be configured to run.

7 is a block diagram illustrating in more detail the structure of the watch-dog signal generator of the uplink module of FIG. 4A or 4B.

Referring to FIG. 7, the watch-dog signal generator 117 may include a counter 117a and a watch-dog signal generator 117b. The counter 117a performs a predetermined number of times, for example, 100 circuits, and when the watch-dog clear signal is received from the higher level equipment, the counter 117a is reset and starts counting again from the beginning.

The watchdog clear signal is periodically input to the counter 117a. If such a watchdog clear signal is not input, the count reaches the corresponding number of times, and the counter 117a generates a counter signal to generate a watch- It passes to the dock signal generator 117b. The watch-dog signal generator 117b receives the counter signal, generates a watch-dog signal, and transmits the watch-dog signal to the power initialization signal generator 119.

The power initialization operation of the remote device using the watch-dog signal generator 117 of the present embodiment may replace the case where the remote control signal is not used. That is, it can be used when the uplink module itself becomes inoperable and communication with the higher level equipment becomes impossible at all.

Specifically, the higher end device periodically transmits a watch-dog clear signal to the remote device. For example, when the counter 117a counts 100 times every 3.5 seconds, and the watch-dog clear signal is transmitted every three seconds from the upper level equipment, the uplink module 110 or 110a operates normally to watch- When the counter clear signal 117a receives the watch clear signal, no watch-dog signal is generated. However, if the communication is disabled, the counter 117a does not receive the watchdog clear signal and accordingly, a watchdog signal is generated. The watch-dog signal is transmitted to the power initialization signal generator 119, and then the remote device may be initialized through a series of operations as described above.

The process of initializing power to the remote device described so far is classified into two types as follows.

end. Perform remote device power reset via remote control signal transmission.

When the subscriber service is not performed because the remote system is in an inoperable state (Hang-Up), the operator who operates the equipment inputs a command for executing a remote reset through the control unit, and the remote control signal generator that receives the command It generates a remote control signal and transmits a remote control signal to a remote device through an optical transceiver.

The remote control signal may have a specific pattern as illustrated in FIG. 5 and may generate N (3) consecutive remote control signals so that the remote equipment is not reset due to the generation of unwanted remote control signals.

The remote equipment receiving the remote control signal through the optical transceiver determines whether the remote control signal is a remote control signal from the remote control signal checking unit, that is, whether the signal of the specific pattern is continuously input N (three times).

If it is determined that the remote control signal, the power initialization signal generator transmits a signal to perform power initialization, the power initialization signal generator transmits a power initialization signal to the power supply, and the power reset execution unit of the power supply performs a power reset. Perform remote device initialization.

I. Performs a power reset of the remote device by generating a watchdog signal.

In normal cases, the upper stage equipment periodically sends a watchdog clear signal to the lower stage equipment to clear the counter of the watchdog signal generator. That is, the watch-dog signal generation unit counts a predetermined time through its own count function, and starts counting again from the beginning when the counter is cleared within a predetermined time by receiving the watch-dog clear signal from the upper level device.

If the counter is not cleared within a certain period of time, the uplink module determines that it is unable to communicate with the upper level equipment, and the watchdog signal generator sends the watchdog signal to the power initialization signal generator so that the power initialization signal generator generates power. Generate an initialization signal. The subsequent process is the same as the operation using the remote control signal.

While the present invention has been described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. will be. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (11)

delete In an Ethernet or PON based communication system,
An upper end device having a remote control signal generator for generating a remote control signal for initializing power of a remote device of a subscriber side; And
Remote location equipment having a power initialization signal generator for generating a power initialization signal based on the remote control signal;
The upper stage equipment,
The remote control signal generator;
An upper stage MAC (Medium Access Control) function unit for processing an Ethernet or PON protocol;
An upper end optical transmitter / receiver connected to the upper end MAC function unit and the remote control signal generator and transmitting and receiving optical signal data with the remote equipment;
A watch-dog clear signal generator coupled to the MAC function to generate a watch-dog clear signal; And
And a controller configured to control the remote control signal generator, an upper stage MAC function unit, an upper stage optical transmitter, and a watchdog clear signal generator.
The remote equipment,
A power supply unit (PSU) for supplying power;
At least one uplink module for communicating with the upper end equipment; And
Ethernet or PON-based remote power control device comprising a; main board (Main Board) for distributing the communication function to each subscriber port and collects the communication function from each subscriber port. The method of claim 2,
The uplink module,
A lower end optical transmitter / receiver for transmitting and receiving optical signal data with the upper end equipment;
A remote control signal confirming unit connected to the lower optical transmitter and generating a confirmation signal by checking the remote control signal through a Loss of Signal (LOS) channel;
A lower stage MAC function unit connected to the lower stage optical transceiver and processing an Ethernet or PON protocol;
A watch-dog signal generator connected to the lower MAC function unit and generating a watch-dog signal according to whether the watch-dog clear signal is received; And
A power initialization signal generator connected to at least one of the remote control signal confirmation unit and the watch-dog signal generation unit, and configured to generate the power initialization signal by at least one of the confirmation signal and the watch-dog signal; Ethernet or PON-based remote power control device comprising a. The method of claim 2,
The uplink module,
A lower end optical transmitter / receiver for transmitting and receiving optical signal data with the upper end equipment;
A lower stage MAC function unit connected to the lower stage optical transceiver and processing an Ethernet or PON protocol;
A watch-dog signal generator connected to the lower MAC function unit and generating a watch-dog signal according to whether the watch-dog clear signal is received;
A remote control signal confirmation unit connected to the lower MAC function unit and configured to check the remote control signal to generate a confirmation signal; And
A power initialization signal generator connected to at least one of the remote control signal confirmation unit and the watch-dog signal generation unit, and configured to generate the power initialization signal by at least one of the confirmation signal and the watch-dog signal; Including,
The remote control signal checking unit for all the signals received, Ethernet or PON-based remote power control device, characterized in that the presence of the remote control signal. The method according to claim 3 or 4,
The power supply device,
A power initialization execution signal generator configured to receive the power initialization signal and generate a power initialization execution signal; And
Ethernet or PON-based remote power control device comprising a; power reset execution unit for performing a reset of the power according to the power initialization execution signal. delete In the communication method by Ethernet or PON-based communication system,
Generating, at an upper end equipment, a remote control signal for initializing power of a remote equipment of a subscriber side, and transmitting the remote signal control signal to the remote equipment; And
Checking the remote signal control signal and resetting a power supply to initialize the remote equipment;
The step of transmitting to the remote device,
Transmitting the watchdog clear signal to the remote device to clear the counter of the watchdog signal generator provided in the remote device;
Initializing the remote device,
When the watch-dog clear signal is not received at the remote device, resetting the power supply by a watch-dog signal generated from the watch-dog signal generator; Based remote power control method. The method of claim 7, wherein
The remote signal control signal is transmitted to the remote device through a LOS channel, or transmitted to the remote device through a data transmission and reception channel,
When the remote device is transmitted to the remote device through the data transmission / reception channel, the remote device checks whether the remote control signal exists for all received signals. The method of claim 7, wherein
Initializing the remote device,
Identifying, by the remote equipment, at least one of the remote control signal and the watch-dog signal to generate a power initialization signal; And,
Resetting the power supply by receiving the power initialization signal; Ethernet or PON-based remote power control method comprising a. The method of claim 7, wherein
The remote signal control signal includes a signal pattern that is repeated N times consecutively, wherein N is a natural number of two or more Ethernet or PON-based remote power control method. The method of claim 7, wherein
The remote equipment includes at least one uplink module for communicating with the upper equipment,
When the uplink module communicates with the upper end equipment, reset the power supply based on the remote signal control signal,
Ethernet or PON based remote power control method, wherein the power supply is reset by the watchdog signal when the uplink module is unable to communicate with the upper end device.

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