KR100271302B1 - An alarm unit and a method of managing the alarm unit in a fiber line monitoring system - Google Patents

Abstract

The present invention relates to an alarm concentrator of a light path monitoring device and a method of operating the alarm concentrator. It consists of a communication unit.

At this time, the status information concentrator collects status information from each of the functional units constituting the remote optical monitor of the optical path monitoring device, and the inserting information information concentrator collects inserting information about the functional units.

In addition, the main control unit is responsible for the overall control of the alarm concentrator, the alarm generating unit transmits a predetermined system alarm signal under the control of the main control unit, and the status information display unit displays the state information under the control of the main control unit. Shown in the device, the LED inspection section emits an LED inspection signal for testing certain LEDs indicating the status of each functional unit. The serial communication unit provides a data transmission path between the main control unit and the predetermined higher functional unit.

Using this invention, it is possible to efficiently perform the monitoring function for each of the functional units of the remote optical monitoring unit (RFMS) or the remote optical monitoring unit (RFMS) constituting the optical path monitoring device.

Description

An alarm unit and a method of managing the alarm unit in a fiber line monitoring system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light ray monitoring device, which is a device for operating and monitoring a light ray used for optical communication. In particular, the present invention is mounted on a remote fiber monitor system constituting a light ray monitoring device, and constitutes a remote light monitoring portion. Alarm unit that collects / analyzes and inserts status information of each functional unit, and generates a corresponding alarm or releases an alarm, and how to operate the alarm concentrator. will be.

FIG. 1 is a schematic diagram of a light path monitoring apparatus 100, and includes a light monitoring operation unit 110 and one or more remote light monitoring units 120.

The optical path monitoring device 100 is responsible for optical test and facility management functions for supporting an efficient maintenance service of an optical cable facility, and is widely applied to an optical path between a city as well as a suburban station. The optical path monitoring apparatus 100 performs functions such as an optical cable installation test, an optical cable aging and cutting test, an optical fiber remote test for measuring optical fiber splice loss and total loss, and a broken position determination of the optical cable.

At this time, the optical monitoring operation unit 110 is located in the operation center to manage the remote optical monitoring unit 120 in its management area, and plays a role of managing the test control and test results and facility information for the optical path. . In addition, the remote optical monitoring unit 120 is a test apparatus installed in a telephone station called a remote station, and performs the role of testing the characteristics of the optical path.

2 is a schematic diagram of the remote light monitoring unit 120 and is composed of a plurality of functional units. These functional units include a power distribution board 121, a power supply 122, 123, an optical test controller 124, an alarm concentrator 125, an optical tester 126, a modular optical core selector 128 and a control board 127. ), A modular fiber optic selector 128, a self-fiber fiber optic selector 130, a control board 129, and a self-fiber fiber optic selector 130, which can be remotely controlled by the optical monitoring operation unit 110. Can be.

Among the components constituting the remote optical monitoring unit 120, the power distribution panel 121 distributes power to each self of the remote optical monitoring unit 120, and in the event of an abnormality in the power source and the device, visible / audible Perform the function to drive the alarm.

The power supplies 122 and 123 supply power to each functional unit, and the power supplies 122 and 123 constitute a dual structure.

On the other hand, the optical test controller 124 controls each of the Self (Shelf) and the functional unit, and performs the function of collecting and transmitting their status information. In addition, the optical tester 126 performs a function of measuring the state of the optical path, averaging the measurement data regarding the optical path.

The modular fiber optic selector control board 127 controls the modular fiber optic selector 128, which is formed between the test light of the optical tester 126 and the self-optical fiber optic selector 130. This function provides the path of.

In addition, the self-optical fiber selector control board 129 controls the self-optical fiber optic selector 130, the self-fiber optical fiber selector 130 provides a test path between the optical tester 126 and the optical cable. In one remote light monitoring unit 120, a plurality (up to 32) of the self-type optical line selector 130 is mounted.

The remote optical monitoring unit 120 composed of such functional units requires an alarm concentrator 125 that can communicate with each functional unit or a higher functional unit to exchange a message about an error condition.

Accordingly, the present invention has been made in order to meet the above-mentioned needs, and the errors of the respective functional units included in the remote optical monitoring unit 120 and constituting the remote optical monitoring unit 120 are synthesized, and the errors To provide an alarm concentrator 125 and a method of operating the alarm concentrator 125, which can issue an alarm or communicate with an optical unit, the optical test controller 124, to send and receive a message about an error condition. There is this.

In order to achieve the above object, the alarm concentrator according to the present invention comprises: a state information concentrator configured to collect state information from predetermined functional units among the functional units constituting the remote optical monitor of the optical path monitoring device; Among the functional units, the inserting information information concentrator for collecting inserting information about predetermined functional units; The state information concentrating unit and the inserting / demounting information concentrating unit are inspected, and an alarm signal or a display signal is output accordingly, and an alarm related message is exchanged with predetermined higher function units, and a predetermined test is performed according to an operator's instruction. A main control unit for outputting a signal; An alarm generator for transmitting a predetermined system alarm signal according to the alarm signal of the main controller; A status information display unit for displaying the status information on a predetermined status display device by a display signal of the main controller; An LED inspection unit which transmits an LED inspection signal for testing predetermined LEDs indicating states of the functional units according to a test signal of the main control unit; And a serial communication unit for providing a data transmission path between the main control unit and a predetermined higher functional unit.

At this time, the main control unit includes a microprocessor for controlling each component of the alarm concentrator; A memory for storing a control program of the alarm concentrator; A watch-dog circuit for monitoring a watch-dog signal of the microprocessor and transmitting a signal for resetting the microprocessor if a valid watch-dog signal is not detected within a predetermined time; A reset unit supplying a reset signal to the microprocessor; And an oscillator for supplying a clock for operating the microprocessor.

The state information display unit may include: a 7-segment driver which receives predetermined self-fiber line selector number information for performing abnormal operation among the functional units from the main control unit and displays the corresponding number on a predetermined 7-segment unit; And an LED driver for receiving abnormality information on each of the functional units from the main control unit and displaying an abnormality on a predetermined LED unit.

In addition, by using the microprocessor and the memory that are embedded together in one chip, a more efficient configuration is possible.

On the other hand, the method of operating the alarm concentrator includes an initialization step of initializing the alarm concentrator; A watchdog signal checking step of checking a predetermined watchdog signal output from the microprocessor and resetting the microprocessor when the watchdog signal indicates an error state; An alarm processing step of displaying an error state of the alarm concentrating device itself on a predetermined error display device or transmitting a predetermined alarm signal; A message receiving step of receiving a predetermined message through the serial communication unit and setting a predetermined message flag when the message is sent to the message; A message flag examining step of examining the message flag; When the message flag is set, the message flag is reset, and according to the predetermined signal code and command code of the received message, a disconnection and unit abnormality alarm process, a system reset process, and a system LED test are performed. Message processing for transmitting a message to be sent to a higher function unit; Investigating a predetermined hernia reference flag; A hernia and unit abnormality alarm checking step of setting or resetting a predetermined hernia alarm flag or a unit abnormality alarm flag by inspecting the hernia state and the unit abnormality alarm state when the hernia reference flag is set; A hernia and unit anomaly alarming process for alarming or releasing an alarm for a corresponding functional unit in accordance with the state of the hernia and apex alarm flag; And displaying the number of the predetermined self-finished optical fiber selector that is not performing the normal operation on the predetermined display device, and then proceeding to the watch-dog signal inspection step.

In this case, the message processing may include resetting the message flag; For the received message, the predetermined signal code is not a code (ENQ) for a signal that requires a predetermined higher function unit to send a response message, and is not a reference signal (RC) for initial operation. If the process is terminated, and if the signal code is ENQ or RC command code investigation step of examining a predetermined command code of the received message; As a result of the investigation in the command code search step, when the command code is a predetermined hermetic code (UR: Unit Remove), if the signal code is RC, the received message is copied to a predetermined herme reference value (UR Reference value), A hernia processing step of setting a predetermined hernia reference flag and copying the hernia port value to a message to be transmitted, and if the signal code is ERQ, copying the hernia port value to a message to be transmitted; Performing a predetermined system LED test if the command code is a predetermined LED test code (LT: LED Test) as a result of the investigation in the command code examining step; Resetting the system if the command code is a predetermined system reset code (Reset) as a result of the investigation in the command code checking step; Copying the value of the optical fiber port to the transmission message if the command code is a predetermined optical fiber signal (FL) as a result of the irradiation in the command code examining step; Inserting a predetermined value indicating a message content into the generated transmission message and transmitting the predetermined value to the predetermined higher functional unit; And clearing the received message.

The hernia and unit abnormality alarm inspection process may further include: comparing a hernia port value with the hernia port information concentration unit and comparing the hernia port value with a predetermined hernia reference value; Setting a predetermined hernia warning flag and SRQ flag or resetting the hernia warning flag according to the comparison result in the comparing step; Reading a unit fault alarm value; And setting the predetermined unit abnormality alarm flag and the SRQ flag or resetting the unit abnormality alarm flag according to the unit abnormality alarm value.

On the other hand, the hernia and unit abnormality alarm process, the step of investigating whether the hernia warning flag is set; Driving the alarm for the function unit when the hernia alarm flag is set, and releasing the alarm for the function unit when the state is reset; Investigating the unit fault alarm flag; Driving an alarm for a corresponding functional unit when the unit abnormality alarm flag is set, and releasing the alarm for the corresponding functional unit when the state is reset; And investigating the SRQ flag to drive an alarm signal for the corresponding functional unit if set.

1 is a schematic diagram of a light path monitoring device;

2 is a schematic view of a remote light monitoring unit;

3 is a functional block diagram of an alarm concentrator according to the present invention;

4 is a flowchart illustrating a method of operating an alarm concentrator;

5 is a detailed flowchart of a message processing procedure;

6 is a detailed flowchart of a hernia and a unit abnormality alarm inspection process;

7 is a detailed flowchart of a hernia and a unit abnormality alarming process.

* Explanation of symbols for main parts of the drawings

100: ray monitoring device 110: optical monitoring operation

120: remote optical monitoring unit 121: power distribution panel

122, 123: power supply 124: optical test controller

126: light testing machine 125: alarm concentrator

127: Modular Fiber Selector Control Board

128: Modular Fiber Selector 129: Self-Contained Fiber Selector Control Board

130: Self-type fiber core selector 310: Status information concentrator

320: inserting information information concentrator 330: main control unit

331: Microprocessor 332: Memory

333: Reset unit 334: Watch-dog circuit

335: oscillation unit 340: alarm generating unit

350: status information display section 351: 7-segment drive section

352: 7-segment portion 353: LED driver

354: LED unit 360: LED inspection unit

370: serial communication unit

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 is a functional block diagram of the alarm concentrator 125 according to the present invention, the state information concentrator 310, the insertion and exit information concentrator 320, the main controller 330, the alarm generator 340, and the state. The information display unit 350, the LED inspection unit 360, and the serial communication unit 370 are provided.

The functions performed by each component of the alarm concentrator 125 are as follows.

The state information concentrator 310 may include a self optical fiber selector 130, a modular optical fiber selector 128, an optical tester 126, and an optical test controller among the functional units of the remote optical monitor 120. 124 collects the state information and transmits the state information to the main controller 330.

To perform this role, the state information concentrator 310 has one or more input / output (I / O) ports for collecting state information sent by the corresponding functional unit. At this time, each I / O port senses a low signal or a high signal transmitted from each functional unit. When the main controller 330 polls the state information concentrator 310, the main controller 330 transmits data collected from the I / O port to the main controller 330 through the I / O bus.

The insertion and exit information concentrator 320 includes, among the functional units of the remote optical monitoring unit 120, a self-type optical line selector 130, a modular optical line selector 128, an optical tester 126, and an optical test controller ( 124), and collects the inserting and removing information from the power supply (122,123) and delivers to the main control unit (330).

In order to perform this function, the insertion field information concentrator 320 has one or more I / O ports for collecting insertion information sent by each functional unit. In addition, when the main control unit 330 polls the inserting information concentrator 320, the collected data is detected through the I / O bus. Transmission to the control unit 330.

The main controller 330 generally controls the operation of each component constituting the alarm concentrator 125, and compares and determines the insertion and detachment information and the status information of the respective functional units of the remote optical monitoring unit 120. Then, alarm processing is performed accordingly.

That is, by polling the status information concentrator 310 and the insertion and exit information concentrator 320, the status information and the insertion and exit information for each of the functional units of the remote optical monitoring unit 120 are received, and analyzed and alarmed. By sending the corresponding alarm signal to the generator 340 or by sending the corresponding display signal to the status information display unit 350, the alarm processing function is controlled.

In addition, by exchanging a message with the optical test controller 124, which is a higher functional unit of the alarm concentrator 125, the alarm concentrator 125 may be initialized or the information required by the optical test controller 124 may be transmitted. And, by sending a predetermined LED test signal to the LED inspection unit 360 in accordance with the operator's instructions, to inspect the predetermined LEDs provided to display the status of each functional unit.

The main controller 330 includes a microprocessor 331, a memory 332, a reset unit 333, a watch-dog circuit, and an oscillator 335, and includes a memory 332. By using the microprocessor 331 can solve the inconvenience of using a separate memory (332).

An 8951 microprocessor 331 may be used as the microprocessor 331 for constructing the present invention. The 8951 is an 8-bit microprocessor 331 having 8051 as a core, and has 4000 bytes of EPROM embedded therein. .

The microprocessor 331 also has a plurality of I / O ports, a serial communication port, a timer, and an external interrupt port. These ports are used as signal lines for controlling the operation of the respective components of the alarm concentrator 125 by the main controller 330, and the control program of the alarm concentrator 125 is located in the memory 332.

The watch-dog circuit 334 provides a means for recovering from a routine that does not complete normally due to a control program malfunction of the main control unit 330. The watch-dog circuit 334 monitors the watch-dog signal of the microprocessor 331. If the watch-dog signal is not detected within a predetermined time, the watch-dog circuit 334 determines that the control program is malfunctioning. ).

The reset unit 333 is used to reset the microprocessor 331.

To reset the above mentioned 8951, the reset terminal (RST) of the 8951 must be kept high for more than 24 clocks. Therefore, the reset unit 333 should be able to output a high signal of 24 clocks or more after the power supply voltage is stabilized.

On the other hand, the oscillator 335 supplies a clock signal for operating the microprocessor 331. Since the 8951 mentioned above is a single chip microprocessor 331, when the clock signal is externally applied, the 8951 operates without a separate peripheral device.

The alarm generator 340 plays a role of generating an alarm regarding the remote light monitoring unit 120 under the control of the main controller 330.

The alarm generating unit 340 has an alarm driving circuit. When the alarm driving circuit receives an alarm signal from the main control unit 330 through the I / O bus, the alarm driving circuit 340 transmits a "system alarm signal" to the power distribution board 121. . At this time, if the alarm relating to the remote light monitoring unit 120 has already occurred in the power distribution panel 121, the alarm drive circuit sends a "system re-alarm signal".

The state information display unit displays state information of the alarm concentrator 125 itself on a light emitting diode (LED). In addition, it serves to display the state information of each functional unit of the remote light monitoring unit 120 processed by the main control unit 330 through a 7-segment or an LED assigned to the unit. .

The state information display unit is composed of a 7-segment driver 351 and a 7-segment unit 352, an LED driver 353, and an LED unit 354.

The 7-segment driver 351 receives the self-fiber line selector 130 number that performs abnormal operation from the main controller 330 through the I / O bus and displays the number on the 7-segment unit 352.

In addition, the LED driver 353 receives the information about each functional unit of the remote light monitoring unit 120 performing abnormal operation from the main control unit 330 through the I / O bus, thereby configuring the LED unit 354. Among the LEDs, change the LED from green to red and display it. In addition, the state information of the alarm concentrator 125 itself is received from the main control unit 330 and displayed on the corresponding LED.

On the other hand, the LED inspection unit 360 serves to enable the operator to check the LED operation status for each functional unit of the remote light monitoring unit 120.

When the operator sets the LED inspection switch (not shown) to the ON state, the LED inspection unit 360 maintains the LED inspection signal high for a predetermined time (for example, for two seconds). To the respective functional units of the remote optical monitoring unit 120. Thus, the normal LEDs of all functional units, including the alarm concentrator 125, remain on for this time (2 seconds) upon receiving the LED test signal from the alarm concentrator 125.

The serial communication unit 370 serves to provide a RS232C transmission path, which is a serial communication standard, in transmitting and receiving a message between the main control unit 330 and the optical test controller 124.

At this time, RS232C, which is a serial communication standard, regulates the transmission line voltage to be 12V or more. It is connected to the RS232C communication path of the controller 124.

4 is a flowchart of a method of operating the alert concentrator 125.

First, when the alarm concentrator 125 starts to drive, the alarm concentrator 125 is initialized (S410).

At this time, the initialization process includes the clearing of the 7-segment unit 352, the initialization of the alarm state, the initialization of the alarm port, the initialization of the serial communication port, and the initialization of predetermined alarm flags.

After initializing the alarm concentrator 125, the watchdog signal output from the microprocessor 331 is examined (S420).

As described above, the watch-dog circuit 334 monitors the watch-dog signal of the microprocessor 331. If the watch-dog signal is not detected within a predetermined time, the control program determines that the microcontroller has malfunctioned. The processor 331 is reset.

Next, an alarm processing process is performed (S430).

That is, an error state of the alarm concentrator 125 itself is indicated on the corresponding LED, or the corresponding alarm signal is sent to the power distribution panel 121 of the remote light monitoring unit 120 to emit an audible alarm.

In operation S440, a message transmitted from the optical test controller 124 is received through the serial communication unit 370.

That is, when the optical test controller 124 sends a predetermined message to the alarm concentrator 125, the microprocessor 331 of the alarm concentrator 125 is interrupted, and when the interrupt is generated, the serial communication unit 370 It receives a message through the serial port, checks whether it is sent to itself, and if so, sets a predetermined message flag.

As an example, it may be confirmed that the message is sent to the user by reading the code of the beginning and the end of the predefined message.

Next, the message flag is examined (S445).

At this time, if a predetermined message is received from the optical test controller 124 through the serial communication unit 370, the message flag is set from the step S440 above, otherwise the message flag is not set Becomes

As a result of the investigation in step S445, when the message flag is set, the message processing process P450 for processing the received message is performed.

FIG. 5 is a detailed flowchart of the message processing process P450, and the message processing processes P450: S451-S462 will be described in detail with reference to the flowchart.

First, after receiving a message, the corresponding message flag is reset (S451).

This is because we have already received and acknowledged that the message was sent to us, so we no longer need to keep the message flag set.

After resetting the message flag, it is checked whether the received message is a normal message (S452).

That is, the predetermined signal code included in the message is not a code (ENQ) for a signal requiring the optical test controller 124 to send a response message or a reference signal (RC) for initial operation. In case, the message processing process P450 is terminated. At this time, RC is a signal that the optical test controller 124 sends to the alarm concentrator 125, and is an initialization signal for starting operation. After receiving this signal, the alarm concentrator 125 performs a process related to alarm processing.

However, if the signal code is ENQ or RC, the command code of the received message is examined (S453).

If the command code is a predetermined hernia code (UR: Unit Remove), the signal code is examined (S454). If the signal code is RC, the received message is copied to a corresponding hernia reference value (UR Reference value) (S456). ), A predetermined hernia reference flag (UR Reference Flag) is set (S456).

Thereafter, the hernia and the corresponding functional unit are only tested when the hernia reference flag is in the set state.

Then, the hernia port value is copied to the message to be transmitted (S457).

At this time, the hernia port values are signals related to hernias of the respective functional units detected by the hernia insertion information concentrator 320.

However, as a result of the investigation in step S453, if the command code is an LED test code (LT: LED Test), the system LED test is performed (S460), if the system reset code (Reset), the system is reset (S459), and the optical path signal If (FL: Fiber Line), the value of the optical fiber port is copied to the transmission message (S458).

Then, a predetermined message value indicating the content of the message is inserted into the transmission message generated in step S460 or step S457 and transmitted to the optical test controller 124 (S461).

Next, the received message is cleared (S462).

This completes the processing of the received message, thus clearing the predetermined received message data in order to receive the next message.

In this process, the alarm concentrator 125 exchanges messages with the optical test controller 124.

As a result of the investigation in step S445, after the message flag is not set or the message processing process P450 is terminated, the hernia reference flag is examined (S465).

The hernia reference flag is set in step S456 of the message processing procedure P450, so that the signal code of the received message is RC and the instruction code is the hernia code. That is, when the optical test controller 124 sends the alarm concentrator 125 an initial command RC once to perform a process related to the alarm processing, the hernia reference flag is always set.

If the hernia reference flag is set as a result of the investigation in step S465, the hernia and unit abnormality alarm inspection process P470 is performed.

6 is a detailed flowchart of the hernia and unit abnormality alarm inspection process (P470).

First, the hernia port value is read from the hernia information concentrator 320 (S471), and the hernia port value and the hernia reference value are compared with each other (S472). At this time, the hernia reference value is a value sent from the optical test controller 124 to the alarm concentrator 125 and is received in step S455 of FIG. 5.

As a result of the comparison in step S472, if any functional unit is in the hernia state, the predetermined hernia warning flag and the SRQ flag are set (S474). The abnormal alarm value is read (S476). At this time, the SRQ (Serial ReQuest) is a signal for informing the current alarm state by using a predetermined signal line connected between the alarm concentrator 125 and the optical test controller 124.

Then, the unit error alarm value is inspected (S477), and if an error occurs, the predetermined unit error alarm flag and the SRQ flag are set (S478). Otherwise, the unit error alarm flag is reset (S479). End the hernia and unit abnormality alarm inspection process (P470).

Then, the hernia and unit abnormality alarm process (P480) is performed. 7 is a detailed flowchart illustrating a hernia and a unit abnormality warning process (P480).

First, it is checked whether the hernia warning flag is set (S481).

As a result of the investigation in step S481, when the hernia alarm flag is set, an alarm processing procedure for a hernia or a unit abnormality alarm state is performed. That is, if the hernia alarm flag is set, the alarm for the corresponding functional unit is driven (S482). If the state is reset, the alarm for the corresponding functional unit is released (S483).

Then, the unit abnormality alarm flag is examined (S484). If the unit abnormality alarm flag is set, the alarm for the corresponding function unit is driven (S485), and if the reset state, the alarm for the corresponding function unit is released (S486).

In addition, the SRQ flag is checked (S487), and if set, the alarm signal for the corresponding functional unit is driven (S488).

Finally, after displaying the number of the self-type optical fiber selector 130 that is not performing the normal operation on the 7-segment unit 352 (S490), the process returns to step S420 and the subsequent process is repeated.

By using the alarm concentrator 125 and the operation method thereof according to the present invention, an alarm is issued for an error appearing in each functional unit of the remote optical monitoring unit 120 constituting the optical path monitoring device 100, Communication with the optical unit controller 124, which is an upper unit, may send and receive a message about an error condition. Therefore, there is an effect that can effectively perform the monitoring function for the remote light monitoring unit 120.

Claims (8)

Among the functional units constituting the remote optical monitoring unit 120 of the optical path monitoring apparatus 100, a status information concentrator 310 for collecting status information from predetermined functional units; Among the functional units, inserting information information concentrator 320 for collecting the inserting information about the predetermined functional units; Checking the state of the state information concentrator 310 and the insertion and exit information concentrator 320, and outputs a predetermined alarm signal or display signal according to the status information concentrator 310, and also send and receive alarm-related messages with the predetermined higher functional units A main control unit 330 for outputting a predetermined test signal according to an operator's instruction; An alarm generator 340 for transmitting a predetermined system alarm signal according to the alarm signal of the main controller 330; A status information display unit 350 which displays the status information on a predetermined status display device by the display signal of the main controller 330; An LED inspection unit 360 which transmits an LED inspection signal for testing predetermined LEDs indicating states of the functional units according to a test signal of the main control unit 330; And And a serial communication unit (370) for providing a data transmission path between the main control unit (330) and a predetermined higher functional unit. The system of claim 1, wherein the main controller 330 comprises: a microprocessor 331 for controlling each component of the alarm concentrator 125; A memory 332 for storing a control program of the alarm concentrator 125; A watch-dog circuit for monitoring the watch-dog signal of the microprocessor 331 and transmitting a signal for resetting the microprocessor 331 when the watch-dog signal is not detected within a predetermined time period. 334); A reset unit 333 for supplying a reset signal to the microprocessor 331; And And an oscillator (335) for supplying a clock for operating the microprocessor (331). The apparatus of claim 1, wherein the state information display unit receives number information about a predetermined self-fiber line selector 130 that performs abnormal operation among the functional units from the main control unit 330, and selects a corresponding number. A seven-segment driver 351 that displays the seven-segment portion 352 of the device; And And an LED driver 353 for receiving abnormality information on each of the functional units from the main control unit 330 and displaying an abnormality on a predetermined LED unit 354. Alarm concentrator 125. 3. The alarm concentrator (125) of claim 2, wherein the microprocessor (331) and the memory (332) are integrated together in one chip. In the method of operating the alarm concentrator 125 of claim 1, An initialization step of initializing the alarm concentrator 125; A watchdog signal checking step of inspecting a predetermined watchdog signal output from the microprocessor 331 and resetting the microprocessor 331 when the watchdog signal indicates an error state; An alarm processing step of displaying an error state of the alarm concentrator 125 itself on a predetermined error display device or transmitting a predetermined alarm signal; A message receiving step of receiving a predetermined message through the serial communication unit 370 and setting a predetermined message flag when the message is sent to the message; A message flag examining step of examining the message flag; If the message flag is set, the message flag is reset, and according to a predetermined signal code and a command code of the received message, predetermined interruption and unit abnormality alarm processing, system reset processing, and system LED inspection are performed. A message processing step of transmitting a message to be sent to a higher function unit; Investigating a predetermined hernia reference flag; A hernia and unit abnormality alarm checking step of setting or resetting a predetermined hernia alarm flag or a unit abnormality alarm flag by inspecting the hernia state and the unit abnormality alarm state when the hernia reference flag is set; A hernia and unit anomaly alarming process for alarming or releasing an alarm for a corresponding functional unit in accordance with the state of the hernia and apex alarm flag; And And displaying the number of the predetermined self-type optical fiber selector 130 that is not performing a normal operation on a predetermined display device, and then proceeding to the watch-dog signal inspection step. How to operate the alarm concentrator 125 of the furnace monitoring device. 6. The method of claim 5, wherein said message processing comprises: resetting said message flag; With respect to the received message, the predetermined signal code is not a code (ENQ) for a signal requiring a predetermined higher function unit 124 to send a response message, but a reference signal (RC) for initial operation. If not), the process is terminated, and if the signal code is ENQ or RC command code investigation step of examining a predetermined command code of the received message; As a result of the investigation in the command code search step, when the command code is a predetermined hermetic code (UR: Unit Remove), if the signal code is RC, the received message is copied to a predetermined herme reference value (UR Reference value), A hernia processing step of setting a predetermined hernia reference flag and copying the hernia port value to a message to be transmitted, and if the signal code is ERQ, copying the hernia port value to a message to be transmitted; Performing a predetermined system LED test if the command code is a predetermined LED test code (LT: LED Test) as a result of the investigation in the command code examining step; Resetting the system if the command code is a predetermined system reset code (Reset) as a result of the investigation in the command code checking step; Copying a value of a corresponding optical path port to a transmission message if the command code is a predetermined optical fiber signal (FL) as a result of the irradiation in the command code examining step; Inserting a predetermined value indicating a message content into the generated transmission message and transmitting the predetermined value to the predetermined higher functional unit; And Method for operating the alarm concentrator (125) of the optical line monitoring device characterized in that it comprises a step of clearing the received message. The method of claim 5, wherein the hernia and unit abnormality alarming process comprises: comparing a hernia port value with a hernia port value and a predetermined hernia reference value by reading the hernia port information concentration unit 320; Setting a predetermined hernia warning flag and SRQ flag or resetting the hernia warning flag according to the comparison result in the comparing step; Reading a unit fault alarm value; And And setting the predetermined unit abnormality alarm flag and the SRQ flag or resetting the unit abnormality alarm flag according to the unit abnormality alarm value. How to operate. 6. The method of claim 5, wherein the hernia and unit abnormality alarming process comprises: investigating whether the hernia warning flag is set; Driving the alarm for the function unit when the hernia alarm flag is set, and releasing the alarm for the function unit when the state is reset; Investigating the unit fault alarm flag; Driving an alarm for a corresponding functional unit when the unit abnormality alarm flag is set, and releasing the alarm for the corresponding functional unit when the state is reset; And And investigating the SRQ flag and, if set, driving an alarm signal for a corresponding functional unit.