KR100478917B1 - Apparatus for Switching Signal Lines for Use in Switching System - Google Patents

Abstract

The present invention relates to a signal line switching device of a switching system. The signal line switching device of the present invention interconnects N line matching (DSX) panels of a signal relay point (STP) equipment with N line matching panels of at least one operating system and at least one backup system to interconnect the signal line relays. In the switching system which relays and exchanges signals transmitted between the point equipment and the operating system or the backup system, in order to switch the signal line to the backup system when the operating system fails, the commercial and backup system side and the signal A switch panel disposed between each signal matching module on the relay point equipment side; And N switching switches housed in the switch panel. Each of the change-over switches may include first and second starting contacts connected to the line matching panel on the operation system and the backup system side, one incoming contact point connected to the line matching panel on the signal relay point equipment side, and the incoming contact point, respectively. And a toggle lever for selectively connecting with the first starting point or the second starting point contact point.

Description

Switching device for switching signal lines {Apparatus for Switching Signal Lines for Use in Switching System}

The present invention relates to a signal line switching device of the switching system, and more specifically to No. 7 The present invention relates to a signal line switching device of an exchange system that can accurately switch a signal line to an operation system and a backup system using a common line method.

 CDMA mobile telephone systems include a Mobile Switching Center (MSC) and a Home Location Register (HLR). When the mobile communication terminal registers a location through the base station, the switching center temporarily stores the information of the mobile communication terminal in the visitor location register (VLR) and requests the location registration to the home location register. At this time, the home location register checks the validity of the mobile communication terminal and, in the case of a valid terminal, transmits information such as additional service of the subscriber to the visitor location register. The visitor location register stores the information received from the home location register and informs the mobile communication terminal that the location registration is successful. At this time, the communication between the switching center and the home location registration period is performed through a Mobile Application Protocol (MAP) message, and the transmission and reception of the message is no. 7 Signaling is used.

Signaling between exchanges is called inter-station signaling. Inter-station signals include dial numbers, selection signals for the first switching station to pass to the next switching station in the relay path, and signals used for transmission of toll information and network management operations. There are two methods for sending signals between stations: individual line signaling and common channel signaling (CCS). The separate line signaling method is a method of sending and receiving a control signal necessary for a call using the same line without distinguishing a call line that makes a call and a signal line that sends a signal. In this case, a signal dedicated line is separately transmitted and received, and a control signal is commonly transmitted and received through a signal line.

Switching systems such as switching centers are operating by applying a redundant circuit consisting of a commercial unit and a backup unit, a unit performing various functions to perform a reliable service. That is, when one commercial unit performing a specific function is running at the exchange, the other backup unit having the same function as the commercial unit is installed and made into standby state. The signal line is switched to a backup unit to act as a commercial unit.

When switching a commercial unit to a backup unit in a switching system using a common line signaling method, an operator recognizes a line in a line matching panel and transfers it using a patch cord. Patch cords are short-length wires or optical cables with connectors, such as plugs or a pair of clips, at the ends thereof, which are a type of cord used to connect lines to each other at cross-connection points of communication devices.

In the event of a failure of a commercial unit, line transfer to the backup unit is performed by a knowledgeable operator with expertise in the replacement system. However, since such line switching work depends on manual labor by the operator, there is a problem that it takes a long time to normalize the entire switching system. In addition, when the general operator who is not familiar with the switching system performs the line switching operation, it is not possible to accurately identify the line in the line matching panel, and thus there is a problem that there is a possibility of an additional failure even in the normal backup unit switched over.

Therefore, the object of the present invention is No. It is to provide a signal line switching device that enables the accurate and simple transfer of signal lines to a backup system in the event of a failure in a seven-way operation system.

According to the present invention for achieving the above object, interconnecting N line matching panels (DSX) of the signal relay point (STP) equipment and N line matching panels of at least one operating system and at least one backup system In the switching system for relaying and exchanging signals transmitted between the signal relay equipment and the operating system or the backup system, the apparatus for switching the signal line to the backup system in the event of a failure of the operating system is commercial and backup. A switch panel disposed between a system side and each signal matching module of the signal relay point equipment side; And N switching switches housed in the switch panel,

Each of the change-over switches may include first and second starting contacts connected to the line matching panel on the operation system and the backup system side, one incoming contact point connected to the line matching panel on the signal relay point equipment side, and the incoming contact point, respectively. And a toggle lever for selectively connecting with the first starting point or the second starting point contact point.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail as follows.

1 is a block diagram of a switching system including a signal line switching device according to the present invention.

The switching system shown in FIG. 1 includes an operating system 110, a backup system 120, a digital signal cross connector (DSX) module 130, 140, 170, a signal line switching device 150, and a signal relay point. (Signaling Transfer Point: STP) equipment.

The operating system 110 may be a home location register of a CDMA mobile switching system, and is configured in a redundant structure together with the backup system 120. The operating system 110 as a home location register stores mobile communication terminal subscriber information and service profile of the subscriber, and transmits the stored mobile communication terminal subscriber information and profile to the signal relay point equipment 180. It is in charge of outgoing and incoming control of subscriber and control of various additional services. In addition, the position of the mobile communication terminal subscriber is reported in real time from the exchange to enable the incoming call to the corresponding mobile communication terminal subscriber.

The backup system 120 has the same configuration as the operation system 110 and performs the same function, and is used in place of the operation system 110 in case of failure or failure of the operation system 110.

Each signal matching module 130, 140, 170 is connected to the operating system 110, the backup system 120, and the signal relay equipment 180, respectively, to relay the signal with the operating system 110 and the backup system 120. It performs a function of transmitting a control signal between the point equipment 180. Each signal matching module 130, 140, 170 consists of N, for example four signal matching panels 132, 134, 136, 138; 142, 144, 146, 148; 172, 174, 176, 178 Each signal matching panel 132, 134, 136, 138; 142, 144, 146, 148; 172, 174, 176, 178 has M signal lines, for example, four. Four signal lines are connected to the signal line switching device 150 using the patch cord 152.

Signal relay point equipment 180 performs relaying and exchange of signal messages with commercial and backup systems 110 and 120 as home location registers and switching centers in the common line signaling scheme of ITU-T.

The signal line switching device 150 includes a switch panel 154 disposed between the signal matching modules 130, 140, and 170 of the commercial and backup systems 110 and 120 and the signal relay equipment 180, respectively. A plurality of changeover switches 162, 164, 166, 168 housed in the switch panel 154. The switch panel 154 is configured in the form of a panel so that it can be attached to a portion of the exchange system using attachment means such as screws.

The plurality of changeover switches 162, 164, 166, and 168 is composed of a set of N, i.e., four changeover switches. The set of switching switches 162, 164, 166, 168 is equal to the number of signal lines of the signal matching panels 132, 134, 136, 138; 142, 144, 146, 148; 172, 174, 176, 178, respectively. Four sets of the first starting point contact 192, the second starting point contact 194, the starting point contact 196 and the starting point contact 196 are selectively provided to the first starting point contact 192 or the second starting point contact 194. It consists of the toggle lever 198 which connects (refer the equivalent circuit diagram of FIG. 1). Such a switching switch may be configured as a toggle switch or a slide switch.

In more detail, the first starting contact point 192 of each of the first to fourth switching switches 162, 164, 166, and 168 may include the first to fourth signal matching panels 132 on the operating system 110 side. Four signal lines of 134, 136, and 138 are connected, and the second starting contact points 194 of each of the first to fourth switching switches 162, 164, 166, and 168 are located on the backup system 110 side. Four signal lines of each signal matching panel 142, 144, 146, and 148 are connected. In addition, four signal lines of the first to fourth signal matching panels 170 on the signal relay point equipment 180 are connected to the incoming contacts 196 of the first to fourth switching switches 162, 164, 166, and 168. Is connected. The toggle lever 198 is toggled in the upward or downward direction by the operator so that the operating system 110 or the backup system 120 is connected to the signal relay equipment 180 through the respective changeover switches 162, 164, 166, and 168. To be connected to.

The signal line switching device 150 configured as described above, when a failure or a failure occurs in the operating system 110, each toggle lever 198 is set to the signal matching module 172, 174, on the signal relay point equipment 180. The backup system 120 in the failed operating system 110 is switched by switching the signal lines 176 and 178 to the signal lines of the signal matching modules 142, 144, 146 and 148 on the backup system 120 side. Switching of signal lines to the system can be done quickly and easily in a batch.

The above description is merely illustrative of the technical spirit of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas falling within the scope of the present invention should be construed as being included in the scope of the present invention.

Therefore, according to the present invention No. It is possible to reduce the operator's mistakes that can occur when switching the signal line to the backup system due to a failure or failure in the operation system using the 7 method, and to reduce the transfer time.

1 is a diagram showing a configuration of an exchange system including a signal line switching device according to the present invention.

<Description of the symbols for the main parts of the drawings>

110: operating system 120: backup system

130, 140, 170: signal matching module

132, 134, 136, 138: signal matching panel on the operating system side

142, 144, 146, 148: Signal matching panel on the backup system side

150: signal line switching device 154: switch panel

162, 164, 166, 168: changeover switch

172, 174, 176, 178: signal matching panel on the signal relay device

180: signal relay equipment 192, 194: wire contact

196: winning position 198: toggle lever

Claims (4)

N line matching panels of the signal relay point (STP) equipment and N line matching panels of at least one operating system and at least one backup system are interconnected to each other so that the signal relay equipment and the operating system or the An apparatus for switching a signal line to the backup system in the event of a failure of the operating system in a switching system that performs relaying and exchange of signals transmitted between backup systems, A switch panel disposed between a commercial and backup system side and each signal matching module on the signal relay point equipment side; N switching switches accommodated in the switch panel, Each of the change-over switches may include first and second starting contacts connected to the line matching panel on the operation system and the backup system side, one incoming contact point connected to the line matching panel on the signal relay point equipment side, and the incoming contact point, respectively. And a toggle lever for selectively connecting with the first starting point or the second starting point contact point. The method of claim 1, And the switch panel is configured in the form of a panel to be attachable to the switching system. The method of claim 1, The switching switch is a signal line switching device of the switching system, characterized in that the toggle switch. The method of claim 1, And the line matching panel and the changeover switch are connected by using a patch cord.