KR20010035972A - Device and method for supervision and control of optical subscriber transmission equipment - Google Patents

Abstract

PURPOSE: A monitor and a control method/device of an optical subscriber transmission equipment, are provided to remotely manage many optical subscriber transmission equipments in a GUI(Graphic User Interface) application through a terminal server, without additionally connection a CIT(Craft Interface Terminal) in every equipment. CONSTITUTION: IP(Internet Protocol) addresses are set up for each terminal server(15), to establish connection between a CIT(Craft Interface Terminal,11) and the terminal server(15) through a TCP/IP(Transmission Control Protocol/Internet Protocol). TCP ports to be used in the terminal server are designated, to connect only RS-232 ports corresponding to the designated ports with a COT(Central Office Terminal,16) for transceiving messages. The TCP/IP connection of the designated ports is opened, and the connection of ports where the designation is released is closed. A prompt port is set up to designate a port for control in the CIT(11), and a command message is made to be transmitted only to the COT(16) connected to the designated port. A command is delivered to the COT(16) through the port set up as the prompt port, and a response is obtained. An event generated in the COT(16) is made to be delivered to the CIT(11) through every port of the terminal server(15) set up as an 'on' state.

Description

Monitoring and control device for optical subscriber transmission equipment and method thereof {Device and method for supervision and control of optical subscriber transmission equipment}

The present invention relates to the monitoring and control of the optical subscriber transmission equipment, and in particular, to a user interface (GUI) of the optical subscriber transmission equipment suitable for being able to remotely manage a plurality of optical subscriber transmission equipment through a terminal server. A monitoring and control device and a method thereof are provided.

1 is a block diagram showing a monitoring and control device of a conventional optical subscriber transmission equipment.

As shown therein, it is provided with an RS-232 port 2 and connected to the COT 3 through a cable 5 connected to the RS-232 port 2 to perform monitoring and control of the COT 3. Craft Interface Terminal (CIT) 1 and; It is composed of a COT (3) having an RS-232 port (4) and connected to the CIT (1) through the cable (5), and performs the transmission function of the optical subscriber.

So conventionally, by connecting the cable (5) 1: 1 with the RS-232 port (4) of the optical subscriber transmission device COT (3) through the RS-232 port (2) of the PC CIT (1), one Only CIT (1) monitors and controls only one piece of equipment.

Referring to the operation of the conventional device configured as described above in detail as follows.

First, check whether the RS-232 port (2) of the CIT (1), which is a PC, is properly installed, and then check whether the RS-232 port (4) of the COT (3), the optical subscriber transmission device, is correctly installed. .

And connect the COT (1) and COT (3) with the RS-232 port connection cable (5).

Then execute COT (1) 's RS-232 port monitoring terminal program and press the Enter key. This key value is passed to the COT (3), which sends a prompt message to the CIT (1) to establish a connection between the CIT (1) and the COT (3).

Thereafter, the CIT 1 transmits a command to the COT 3 and sends a response message from the COT 3 to control and monitor the COT 3.

However, since such a conventional device controls only one device, COT, with one PC, CIT, each device needs to have a control / monitoring PC, resulting in an increase in cost, and each manpower for each PC is one person. There was a problem of wasting resources and manpower.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to remotely manage a plurality of optical subscriber transmission devices through a terminal server in a GUI application without separately connecting a CIT for each device. The present invention provides a monitoring and control device for optical subscriber transmission equipment and a method thereof.

1 is a block diagram showing a monitoring and control device of a conventional optical subscriber transmission equipment,

2 is a block diagram showing an apparatus for monitoring and controlling the optical subscriber transmission equipment according to the present invention;

3 is a detailed configuration diagram of a terminal server in FIG.

4 is a flowchart illustrating a method for monitoring and controlling an optical subscriber transmission device according to the present invention;

5 is a block diagram showing the IP address setting and port designation of the terminal server in FIG.

Figure 6 is a block diagram showing the connection of the terminal server in Figure 4,

7 is a block diagram showing the configuration of the prompt port in FIG.

FIG. 8 is a block diagram illustrating a transmission path of an event according to FIG. 4.

Explanation of symbols on the main parts of the drawings

11: CIT 12, 17: LAN card

13: Hub 14: Terminal Server

15: MAU 16: COT

18: RS-232 port

In order to achieve the above object, the monitoring and control apparatus of the optical subscriber transmission equipment according to the present invention,

A CIT having a LAN card and performing monitoring and control of the COT using a terminal server; A hub, which is a multiport repeater connected to the LAN card of the CIT; A terminal server for interfacing the LAN card connected to the hub with an RS-232 port; It is characterized in that the technical configuration comprises a MAU (Media Access Unit) connected to the terminal server, and is connected to the CIT through the MAU, performing a transmission function of the optical subscriber.

Monitoring and control method of the optical subscriber transmission equipment according to the present invention to achieve the above object,

A first step of establishing an IP address for each terminal server to establish a connection between the CIT and the terminal server via the TCP / IP protocol; A second step of designating a TCP port to be used by the terminal server after the first step so that only RS-232 ports corresponding to the designated ports are connected to the COT to exchange messages; Opening a TCP / IP connection of the designated ports and closing the unassigned ports; Setting a prompt port to designate a port to be controlled by the CIT and to transmit a command message only to the COT connected to the designated port; A fifth step of sending a command to and obtaining a response from the COT through the port set as the prompt port; The technical configuration is characterized in that the event occurring in the COT performs a sixth step to be delivered to the CIT through all ports of the terminal server set to the ON state.

Hereinafter, an embodiment according to the technical idea of the monitoring and control device and the method of the present invention optical subscriber transmission equipment as described above are as follows.

Figure 2 is a block diagram showing an apparatus for monitoring and controlling the optical subscriber transmission equipment according to the present invention.

As shown therein, a CIT 11 having a LAN card 12 and performing monitoring and control of the COT 16 using the terminal server 14; A hub 13 which is a multiport repeater connected to the LAN card 12 of the CIT 11; A terminal server (14) for interfacing the LAN card (12) connected to the hub (13) with an RS-232 port; The MAU 15 is connected to the terminal server 14, is connected to the CIT 11 through the MAU 15, and is configured as a COT 16 performing a transmission function of an optical subscriber.

As shown in FIG. 3, the terminal server 14 includes a LAN card 17 connected to the LAN port 12 of the CIT 11 through the hub 13, and the LAN card 17. And a plurality of RS-232 ports 18 for connecting a serial port with each other, and each of the RS-232 ports 18 is mapped to a TCP / IP port number of the LAN port 17, respectively.

Figure 4 is a flow chart illustrating a method for monitoring and controlling the optical subscriber transmission equipment according to the present invention.

As shown therein, a first step ST11 of establishing an IP address for each terminal server to establish a connection between the CIT and the terminal server through the TCP / IP protocol; A second step (ST12) of designating a TCP port to be used by the terminal server after the first step (ST11) to connect only the RS-232 ports corresponding to the designated ports with a COT to send and receive a message; A third step (ST13) of opening the TCP / IP connection of the designated ports and closing the connection of the unassigned ports; Setting a prompt port to designate a port to be controlled by the CIT and allowing a command message to be transmitted only to the COT connected to the designated port (ST14); A fifth step (ST15) of sending a command to and obtaining a response from the COT through the port set as the prompt port; The sixth step is performed so that the event generated in the COT is transmitted to the CIT through all ports of the terminal server set to the ON state.

Operation of the monitoring and control device and the method of the optical subscriber transmission equipment according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, the internal structure of the terminal server 14 is configured to accommodate one LAN port and RS-232. The LAN ports are internally connected to five RS-232 ports, each of which is mapped to the TCP / IP port numbers 1 to 5 of the LAN port. Therefore, it is possible to communicate with 5 RS-232 individually by using port number of LAN port.

In addition, the TCP / IP socket library is used for the connection between the PC CIT 11 and the terminal server 14.

Accordingly, when the CIT 11 intends to monitor and control the plurality of COTs 16, which are optical subscriber transmission equipments, the following operations are performed.

That is, an IP address is set for each terminal server to establish a connection between the CIT and the terminal server through the TCP / IP protocol. This is performed by using an operating program in the CIT 11, which is a PC, to assign an IP address to establish a connection between the PC and the terminal server 14 through the TCP / IP protocol. The IP address is stored in the form of a table in the operating program (ST11).

Then, specify the TCP port to be used by the terminal server so that only the RS-232 ports that correspond to the specified ports connect to COT to send and receive messages. This means that only RS-232 ports 18 corresponding to the designated ports will be used to connect and send messages. Whether the designated ports are turned on or off is stored in the form of a table in the operating program along with the IP address (ST12).

Fig. 5 is a block diagram showing the IP address setting and port designation of the terminal server 14. That is, in FIG. 5, IP addresses of the terminal servers 14 are set / managed in the PC's operation program. Eight terminal servers may be managed with IDs of 1 to 8 for convenience, and IP corresponding to each ID. The address can be set. In addition, it is possible to set whether to use ports 1 to 5 connected internally with the RS-232 port 18. Also, only checked ports are available.

Then run ″ Refresh Connections ″ to open the TCP / IP connections for the ports you set to ON. At this time, the ports that are not ON are closed (ST13). If the first step ST11 and the second step ST12 are for setting ports to establish a connection, the third step ST13 is for establishing a connection. Here the connection is made through the socket () function of the TCP / IP socket library. The disconnected ports use the closesocket () function of the TCP / IP socket library.

6 is a block diagram showing the connection of such a terminal server. Thus, when Refresh is executed in the PC's operating program, the connection is re-established for the ports checked in FIG. At this time, the connection between the CIT 11 and the COT 16 is established only for the checked ports.

Then run ″ Set Prompt Port ″ to specify the port to be controlled by the CIT (11). The reason for specifying the prompt port is to determine to which port the CIT 11 should send command messages. After the prompt port is specified, the command message is sent only to the device connected to this port. The socket of the prompt port is stored in the operating program, and when the command message is sent, the command message is transmitted through the socket using the send () function of the TCP / IP socket library (ST14).

Fig. 7 is a block diagram showing the configuration of such a prompt port. Therefore, apart from establishing a connection between the CIT 11 and the COT 16, a prompt port should be set up so that a command can be sent only to a specific port. Command messages are sent only to the port set as the prompt port.

The command is sent to the COT through the port set as the prompt port and a response is obtained (ST15). The response message is sent to the operating program using the read () function of the TCP / IP socket library.

In addition, the event occurred in the equipment COT (16) to be transmitted to the CIT (11) through all the ports of the terminal server set to the on state. Event messages are sent to the operating program using the read () function of the TCP / IP socket library.

8 is a block diagram showing a transmission path of such an event. Thus, event messages from devices connected to all ports to which a connection is established, including the port set as the prompt port, are forwarded to the PC.

As such, the present invention is a GUI application developed on the basis of Windows95, which enables remote management of a plurality of optical subscriber transmission devices through a terminal server.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the apparatus for monitoring and controlling the optical subscriber transmission device according to the present invention and the method thereof enable remote control and monitoring of multiple devices with one CIT, so that each CIT needs to be connected to each device. In addition, since the CIT to the terminal server is connected to the LAN, it is possible to manage a plurality of remote optical transmission devices.

Claims (3)

In the monitoring and control device of optical subscriber transmission equipment, A CIT having a LAN card and performing monitoring and control of the COT using a terminal server; A hub, which is a multiport repeater connected to the LAN card of the CIT; A terminal server for interfacing the LAN card connected to the hub with an RS-232 port; And an MAU connected to the terminal server, and connected to the CIT through the MAU and configured to perform a transmission function of an optical subscriber. The method of claim 1, wherein the terminal server, A LAN card connected to the LAN port of the CIT through the hub, and a plurality of RS-232 ports connecting the LAN card and the serial port, each RS-232 port being TCP / TCP of the LAN port. Monitoring and control device for optical subscriber transmission equipment, characterized in that to be mapped to each IP port number. In the monitoring and control method of the optical subscriber transmission equipment, A first step of establishing an IP address for each terminal server to establish a connection between the CIT and the terminal server via the TCP / IP protocol; A second step of designating a TCP port to be used by the terminal server after the first step so that only RS-232 ports corresponding to the designated ports are connected to the COT to exchange messages; Opening a TCP / IP connection of the designated ports and closing the unassigned ports; Setting a prompt port to designate a port to be controlled by the CIT and to transmit a command message only to the COT connected to the designated port; A fifth step of sending a command to and obtaining a response from the COT through the port set as the prompt port; And the sixth step of transmitting the event generated in the COT to the CIT through all ports of the terminal server set to the ON state.