JPH07154831A - Parallel automatic mdf device - Google Patents

Abstract

PURPOSE:To econimically store more subscribers' lines and exchange lines by composing a device by a parallel small group automatic MDF device and an automatic MDF controller switching the connection routes and connecting an exchange terminal and a subscriber terminal. CONSTITUTION:An automatic MDF device connecting and switching a subscriber's line 4 and an exchange line 5 is composed of plural small groups automatic MDF devices 20 by plural parallel constitutions. The switchings of the connection routes of these plural small groups automatic MDF devices 20 are performed by an automatic MDF controller 30 which is independent from each small group automatic MDF device and is separately provided. By this constitution, more subscribers' side lines and exchange lines can be econimically stored. For instance, by installing N automatic MDF devices which are possible to store a subscriber's A line and an exchange B line, the number of the subscriber's line of an N.A line and the number of the exchange line of N.B line become possible to be stored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parallel installation type automatic MDF device for automatically connecting a subscriber side line and an exchange side line.

[0002]

2. Description of the Related Art Conventionally, a connection between a subscriber cable laid from a terminal installed in a subscriber's house and an exchange side is provided by an MDF (MA) provided between the subscriber side line and the exchange side line.
INDISTRIBUTING FRAME Also called main wiring board. The following is abbreviated as MDF). That is,
The connection between the subscriber side line and the exchange side line is made in the MDF. When a new terminal is installed, it is connected with a jumper, and when the terminal is removed, the work to remove the jumper (jumper ring work) is performed. However, since this work is entirely manual work, there is a problem such as soaring labor costs. Recently, an automatic MDF device that automates the jumper work has been developed.

FIG. 5 is a conceptual diagram of the configuration of a conventional system and shows an example of the configuration of an automatic MDF device. In the figure, 1 is a plurality of subscriber terminals, 2 is an exchange, and 10 is an automatic MDF device provided between the subscriber 1 and the exchange 2. 3 is automatic M
It is an MDF operation terminal that operates the DF device 10.

Reference numeral 4 is a subscriber side line, and 5 is an exchange side line. Reference numeral 12 is a connection path switching means provided between the subscriber side circuit 4 and the exchange side circuit 5 for switching the connection path, and 11 is a control means for controlling the connection path switching means 12. The control means 11 and the connection path switching means 12 are provided in the automatic MDF device 10. The control means 11 is connected to the MDF operation terminal 3.

In the system thus constructed, M
The DF operation terminal 3 activates the control means 11, and the control means 1
1 operates the connection path switching means 12 in response to a command from the MDF operating terminal 3. The inside of the connection path switching means 12 has a two-dimensional matrix structure, and the points where pins are raised are connected to the intersections. For example, if there is a matrix switch as shown in FIG. 6, pin 13 is provided between x4 and y2.
Stab a (The robot performs the action of sticking this pin)
, X4 and y2 are connected. In this way, the path is switched (thick solid line in the figure). The actual connection path switching means 12 has, for example, a matrix switch having three stages as shown in FIG.

In such a system, for example, up to 3600 subscriber side lines and up to 2100 exchange side lines have been developed.

[0007]

There is a demand for accommodating a larger number of lines than the current maximum number of lines that can be accommodated. As one method, a method of further enlarging the body and accommodating the number of lines can be considered. However, the current size of the rack is limited in moving the rack and bringing it in to the customer, and it is difficult in reality.

The present invention has been made in view of the above problems, and a parallel installation type automatic MDF capable of economically accommodating more subscriber side lines and exchange side lines.
The purpose is to provide a device.

[0009]

FIG. 1 is a block diagram showing the principle of the present invention. The same parts as those in FIG. 5 are designated by the same reference numerals. The system shown in the figure constitutes an MDF device which is interposed between a plurality of subscriber terminals and an exchange to connect the subscriber side line 4 and the exchange side line 5. In the figure, 2
0 is a small group automatic MDF device installed in parallel with N units, and 30 is an automatic MDF control device for performing connection path switching control of these small group automatic MDF devices 20 and connecting necessary exchange side terminals and subscriber side terminals. Is. Reference numeral 21 is a connection path switching means provided in each small group automatic MDF device 20, and the internal structure thereof is composed of a plurality of stages of matrix switches as shown in FIG. One of the connection path switching means 21 is connected to the subscriber terminal 1 (see FIG. 5), and the other is connected to the exchange.

[0010]

The automatic MDF device for switching the connection between the subscriber side line 4 and the exchange side line 5 has a plurality of parallel arrangements of a plurality of small group automatic MDF devices 20.
The switching of the connection path of the F device 20 is performed by the automatic MDF control device 30 provided separately from each small group automatic MDF device.
The configuration is performed by. With such a configuration, it is possible to economically accommodate a larger number of subscriber lines and exchange lines. For example, by installing N automatic MDF devices capable of accommodating the subscriber side A line and the exchange side B line, it becomes possible to accommodate the subscriber side line number N · A line and the exchange side line number N · B line. .

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 2 is a configuration block diagram showing an embodiment of the present invention. The same parts as those in FIGS. 1 and 5 are designated by the same reference numerals. Here, the automatic MDF control device 30 has five
The small-group automatic MDF device 20 is simultaneously controlled to connect or disconnect the subscriber side line 4 and the exchange side line 5. Three
Is an MDF operating terminal for operating the automatic MDF control device 30,
An exchange 40 is connected to the exchange side line 5. 21
Is a connection path switching circuit as a connection path switching means, which is built in the small group automatic MDF device 20.

In the system configured as above,
The connection path switching circuit 21 in the small group automatic MDF device 20 is
According to the instruction from the automatic MDF control device 30, the subscriber side line 4 and the exchange side line 5 are connected / disconnected. According to the present invention, the small group automatic MDF device 20 has only the connection path switching function, and the switching control of these connection path switching circuits 21 is
Since the automatic MDF control device 30 is separately provided, it is possible to achieve economic efficiency, and it is possible to centrally manage the management data of the five small group automatic MDF devices 20.

FIG. 3 is a block diagram showing an internal configuration example of the automatic MDF control device. In the figure, reference numeral 31 is a control circuit for performing overall control. The control circuit 31 has one end connected to the MDF operation terminal 3 and the other end connected to each small group automatic MD.
It is connected to the connection path switching circuit 21 in the F device 20. A small group automatic MDF determination circuit 32 is connected to the control circuit 31 and determines the small group automatic MDF device 20 to be used.
Reference numeral 3 is a path determination circuit that determines a path to be used in each small group automatic MDF device 20.

Reference numeral 50 denotes a memory, which is composed of a track number registration table 34 and a path use status registration table 35. The track number registration table 34 is the small group automatic MDF.
The line number of the subscriber side line 4 connected to the decision circuit 32 and connected to each of the small group automatic MDF devices 20 is registered, and the path use status registration table 35 is connected to the path decision circuit 33 and is connected to an arbitrary line. Register the usage status of the connection path that connects the subscriber side line and the exchange side line. The operation of the apparatus configured as described above will be described below.

When a necessary connection command is input from the MDF operating terminal 3, the control circuit 31 causes the small group automatic MDF determining circuit 3 to operate.
2 and the path determination circuit 33 are activated. The small group automatic MDF determination circuit 32 refers to the track number registration table 34,
It is determined which sub-group automatic MDF device 20 the line number of the subscriber side line designated from the MDF operating terminal 3 corresponds to. The determination result is notified to the control circuit 31.

Next, the path determination circuit 33 refers to the path use status registration table 35 to determine a connectable path between the subscriber side line 4 and the exchange side line 5 designated by the MDF operating terminal 3. , In the small group automatic MDF device 20. The determined path is notified to the control circuit 31. The control circuit 31 sets a path in the corresponding connection path switching circuit 21 based on the notification from the small group automatic MDF determination circuit 32 and the path determination circuit 33.

FIG. 4 is a flow chart showing an example of the operation of the present invention. The exchange manager, the automatic MDF control device 30.
And the mutual operation between the small group automatic MDF device 20 is shown. When the exchange manager receives a new connection request from a new subscriber (S1), it determines the subscriber-side line to be assigned based on the applicant's address (S2), and then the service class requested by the applicant. The switching side line to be assigned is determined by referring to the usage status of the switching side line (S).
3). Next, the exchange manager determines that the automatic MDF controller 30
From the MDF operating terminal 3, the subscriber side line 4 and the exchange side line 5 are designated and jumpering is requested (S
4).

Automatic MDF that received a request for jumper
In the control device 30, the internal small group automatic MDF determination circuit 32 is provided.
Refers to the track number registration table 34 to determine the target small group automatic MDF device 20 (S5). Next, the path determination circuit 33 refers to the path use status registration table 35 and determines a connection path capable of connecting the designated subscriber side line 4 and exchange side line 5 in the small group automatic MDF device 20. Select (S6).

The control circuit 31 notifies the small group automatic MDF device 20 of the determined path information and requests path setting.
The requested small group automatic MDF device 20 performs path connection based on the notified path setting information (S7). Then, when the path connection is completed, the automatic MDF control device 30 is notified of the path setting completion (S8). The automatic MDF control device 30, which has received the path setting completion, sends the MD to the exchange manager.
The F operation terminal 3 notifies the completion of connection (S9). The exchange administrator confirms the connection completion (S10). With the above, a series of operations is completed.

In the above embodiment, the case where five small group automatic MDF devices 20 connected in parallel are connected has been described.
It goes without saying that the present invention is not limited to this. An arbitrary number of small group automatic MDF devices 20 can be connected in parallel.

[0021]

As described above in detail, according to the present invention, it is possible to provide a parallel installation type automatic MDF device capable of economically accommodating more subscriber side lines and exchange side lines. it can.

[Brief description of drawings]

FIG. 1 is a principle block diagram of the present invention.

FIG. 2 is a configuration block diagram showing an embodiment of the present invention.

FIG. 3 is a block diagram showing an internal configuration example of a parallel installation type automatic MDF control device.

FIG. 4 is a flowchart showing an example of the operation of the present invention.

FIG. 5 is a conceptual diagram of a configuration of a conventional system.

FIG. 6 is a diagram showing a configuration example of a connection path switching means.

[Explanation of symbols]

 4 subscriber side line 5 exchange side line 20 small group automatic MDF device 21 connection path switching means 30 automatic MDF control device

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masahiro Ito 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Within Fujitsu Limited (72) Inventor Shigeru Kitahata 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph Telephone Incorporated (72) Inventor Yoshiji Shigeya 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (71) Inventor Eiichi Sunaga 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd.

Claims (6)

[Claims] 1. A small group automatic MDF device (20) installed in parallel in an MDF device which is interposed between a plurality of subscriber terminals and an exchange and connects a subscriber side line and an exchange side line. And a parallel installation type automatic MDF device constituted by an automatic MDF control device (30) for controlling connection path switching of the small group automatic MDF device (20) and connecting a necessary exchange side terminal and subscriber side terminal. . 2. The small group automatic MDF device (20) is composed only of connection route switching means (21), and the route inside thereof is switched by the switching control of the automatic MDF control device (30). The parallel installed automatic MDF device according to claim 1. 3. The automatic MDF control device (30) is connected to an MDF operation terminal at one end thereof, and is connected to the control circuit (31) for performing overall control, and is connected to the control circuit (31) to be used in a small scale. Group automatic MD
Small group automatic MDF determination circuit (3) for determining the F device (20)
2), a path determination circuit (33) that is also connected to the control circuit (31) and determines the path to be used in the small group automatic MDF device (20), and is connected to the small group automatic MDF determination circuit (32) A line number registration table (34) for registering the line numbers of the subscriber lines connected to the respective small group automatic MDF devices (20) and the path determination circuit (33) are connected, so that any subscription is possible. 2. The parallel installation type automatic MDF device according to claim 1, wherein the parallel installation type automatic MDF device comprises a path use status registration table (35) which registers the use status of a connection path connecting the operator side line and the exchange side line. 4. An automatic MD which receives a request for jumper ring.
In the F control device (30), the small group automatic MDF determination circuit (3
The parallel installation type automatic MDF according to claim 3, characterized in that (2) refers to the track number registration table (34) to determine the target small group automatic MDF device (20).
apparatus. 5. An automatic MD that receives a jumper request.
In the F control device (30), the path determination circuit (33) in the determined small group automatic MDF device (20) refers to the path use status registration table (35) to refer to the small group automatic MDF device.
The parallel installed automatic MDF device according to claim 4, wherein a connectable path between the designated subscriber side line and the exchange side line is determined in the device (20). 6. The automatic MDF control device (30) notifies the small path automatic MDF device (20) of the determined path information,
Requested path setting and requested small group automatic MDF device (2
6. The parallel installed automatic MDF device according to claim 5, wherein 0) is adapted to perform the path connection based on the notified path setting information.