JPS5829919B2 - Data memory control method in automatic switching equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control system for a central control circuit in an automatic exchange, and a highly distributed control system.

In the past, in electronic exchanges, one central control circuit controlled the entire switching system.

Therefore, this central control circuit had a large processing capacity and was multifunctional.

In other words, this central control circuit detects, counts, and
Control of various signals such as control of registers such as storage, trunk control such as incoming signal detection and recovery signal detection, control of central office line relay board such as detection and storage of key information from central office line relay board,
Various connection controls such as dial tone connection, internal line interconnection, central office line outgoing connection, central office line incoming connection, leased line outgoing connection, leased line incoming connection, relay connection, automatic forwarding connection, speed dial connection, variable call forwarding connection, etc. was executed by one processor.

For this reason, a processor with large processing capacity and multiple functions was required, and a processor dedicated to switching control had to be used.

Additionally, processors with such high processing power and multi-functions have the drawbacks of being expensive and requiring a large amount of mounting space.

Furthermore, in order to increase the line capacity of switching equipment, new processors with even greater processing power had to be developed, and in order to change the functions, a very large amount of programs had to be changed. There were drawbacks, and the system configuration and program had to be changed depending on the line capacity and functions of the exchange.

Moreover. When trying to cover the range from small capacity to large capacity with the same model, the processing power of the central control circuit had to be designed to match the large capacity, which resulted in extremely high prices for small capacity. Unfortunately, the models could not be integrated.

Therefore, a need has arisen for a distributed control system in which the central control circuit is composed of a plurality of processors.

However, in this case, various data such as system data and subscriber data required to execute the exchange process were provided in a one-to-one VC correspondence for each of the plurality of processors, so the memory for storing the data was The amount becomes thicker,
The drawbacks were that it was expensive and required a large amount of mounting space.

The purpose of the present invention is to create an optimal system according to the conditions required for the exchange, by always using the same control method regardless of the line capacity or function of the exchange, excluding the above-mentioned drawbacks. Another object of the present invention is to provide an inexpensive control system for controlling an exchange with a large line capacity using an inexpensive general-purpose microprocessor.

In order to achieve these objects, the present invention provides an information transfer path for transferring information between the plurality of processors in an automatic switching system using a distributed control system in which a control circuit is configured by a plurality of processors. A means for storing data necessary for executing the process is provided, and the means for storing data necessary for executing the exchange process is connected to an information transfer path for transferring information between the plurality of processors. The apparatus is characterized in that it is configured such that one or more of the plurality of processors can control the means for storing data necessary for executing the exchange process.

According to the present invention, it is possible to construct an optimal system according to the conditions required of the exchange by always using the same control method for the large and small line capacity of the exchange and for the various functions of the exchange.

That is, according to the present invention, small capacity (100 lines or less)
The same model can cover everything from high capacity to large capacity (several hundred lines or more), and the same model can cover a wide range of applications such as private branch exchanges, Centrex exchanges, local exchange data exchanges, etc. It will be done.

Since it is possible to configure an optimal system according to line capacity, the price of the central control circuit can be increased in proportion to the number of lines, and in terms of price it can be covered by small capacity power and large capacity 1. A control method is obtained.

According to the present invention, both hardware and software can be shared from small to large capacities, the development period is shortened, and costs can be reduced due to the mass production effect due to the sharing of hardware.

In fact, according to the control method of the present invention, a control method can be obtained that makes it easy to introduce an inexpensive general-purpose microprocessor into the central control circuit of a switch. This is important in order to make the switch control circuit cheaper and simpler.

However, current inexpensive general-purpose microprocessors have slow processing speeds, and one processor can handle 100 to 20 lines.
It only has a processing capacity of 0 lines and 9 lines.

Therefore, we used multiple inexpensive general-purpose microprocessors,
The multiprocessor control system of the present invention provides sufficient processing power to control large-capacity exchanges.

That is, the present invention divides the functions of the control system of an automatic switching system into several blocks and deploys an inexpensive general-purpose microprocessor for each block, thereby reducing the work that each processor must process. The control system can be configured to be sufficiently satisfactory even with the processing power of an inexpensive general-purpose microprocessor.

At this time, instead of providing memory for storing various data such as system data and subscriber data in correspondence with each of the plurality of processors constituting the central control circuit, the data is stored by providing a common memory in the system. The amount of memory can be reduced, the price can be reduced, and the mounting space can be reduced.

Also, by sharing data metrics in this way,
System malfunctions due to data differences between memories can be prevented.

As a result, the failure handling method and maintenance processing method of the system can be simplified, and the overall system configuration can be simplified.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, the line side terminals of the switching network 51 include line circuits 21L, 212. ... 21n to extension telephones 111, 112 . ... fin, and the station line relay board control circuit 411. ..., 41n to the central office line relay stand 311. ..., 31n are connected, and the trunk side terminal of the switching network 51 is connected to the trunk 611.
, 612. ..., 61n are connected.

Similarly, the switching network 52. . . , a central office line relay board is connected to the 5m line side terminal via a line circuit via an extension telephone and a central office line relay board control circuit, and the switching network 52. ...The trunk is also connected to the trunk side terminal of p5m.

Switching network 51, switching network 52. ...The switching networks 5m are connected by a junctor 81 to form a switching network system.

Such extension telephones 111, 112° . . . , 11n, line circuits 211, 212 . ...21n; Office line relay board 3
11. ..., 31n; station line relay board control circuit 411.・
... 41n; switching network 51; trunk 61L 612. . . , a signal control processor 711 is provided to control reception and transmission of various control signals regarding 61n.

Similarly, a signal control processor 721 is provided to control the reception and transmission of various control signals regarding the switching network 52 and devices connected to the line side terminals and trunk side terminals of the switching network 52.

Similarly, a signal control processor 7ml is provided to control the reception and transmission of various control signals regarding the switching network 5m and devices connected to the line side terminals and trunk side terminals of the switching network 5m.

Signal control processor 71L 72L...7
ml is functionally composed of several blocks, namely, a central office relay control block, a line control block, a switch control block, a trunk control block, and a connection control processor interface block.

That is, the signal control processor 711 is composed of a central office relay board control block 712, a line control block 713, a switch control block 714, a trunk control block 715, and a connection control processor interface block 716.

Signal control processor 721. . . , 7m1 are also connected to the central office line relay board control block 722. ....

7m2; line control block 723. ... 7m3:
Switch control block 724. ... 7m4:) Rank control block γ25. ..., 7m5; Connection control processor interface block 726゜..., 7m
It consists of 6.

Signal control processors 711, 721. ...7ml is a control signal arriving from an external device to the line side terminal of the switching network corresponding to each signal control processor, the line circuit connected to the trunk side terminal, the central office line relay board control circuit, the trunk, etc. It has the function of controlling the detection of line circuits, the station line relay board control circuit, the sending of control signals from trunks, etc. to external equipment, the function of controlling the switches of the switching network, and the interface function with the connection control processor.

The office line relay board control block detects and stores the telephone key information sent from the office line relay board, controls the lamps and buzzers of the office line relay board, and analyzes the telephone key information.

The line control block detects calling information sent from the extension telephone, controls sending of a calling signal to the extension telephone, detects response information sent from the extension telephone, and so on.

The switch control block controls the communication path switch, controls the communication path switch memory, and controls the connection state memory.

The trunk control block detects, counts and controls the accumulation of selection signals sent from the extension telephone, detects hooking signals sent from the extension telephone, detects recovery signals sent from the extension telephone, detects incoming signals sent from the player, and controls the play Detection of the connection confirmation signal sent by the player, detection of the response signal sent from the player, detection of the recovery signal sent from the player, control of detection, counting, and accumulation of selection signals sent from the player, and activation of the game. Control of signal transmission, control of transmission of selection signals to the game,
It controls the sending of a connection confirmation signal sent to the opposing station, controls the sending of a response signal to the opposing station, controls the sending of a recovery signal to the opposing station, pre-translates the selection signal sent from the extension telephone and the opposing station, etc.

The connection control processor interface block determines activation conditions for the connection control processor, controls transfer of control information with the connection control processor, and the like.

Next, connection control processor 91L921. ...9p
1 is activated by detecting an activation request from the signal control processor, and performs dial tone connection, extension line interconnection, central office line originating connection, central office line incoming connection, leased line originating connection, leased line incoming connection, relay connection, and automatic transfer. It is a processor that performs various connection controls such as connections, speed dial connections, and town transfer connections, and is composed of a signal control processor interface block and a connection control block.

The signal control processor interface block determines whether the "u, signal control - y" processor has issued a startup request to the connected control processor, and if it has started, accepts the startup request and identifies the startup request type. control, transfer control of control information with the signal control processor, etc.

The connection control block allows dial tone connection, internal line interconnection, central line outgoing connection, central line incoming connection, leased line outgoing connection, leased line incoming connection, relay connection, visual transfer connection, speed dial connection, variable call forwarding connection, etc. Performs various connection controls.

Also signal control processor 71L t2L...7ml
and a connection control processor 911. d2L...

9p1 is connected by a bus 82, that is, a control information transfer lead.

There is no fixed correspondence between the signal control processor and the connection control processor.

The signal control processor supports various equipment groups such as extension telephones, line circuits, office line relay boards, office line relay stand control circuits, trunks, and switching networks that are connected to the line side terminals and trunk side terminals of the switching network. It is provided.

The number of devices connected to the line side terminals and trunk side terminals of the switching network processed by the signal control processor is determined by the processing capacity of the signal control processor.

Signal control processor 711 connects extension telephones 111, 112 .・・・
・.

11n; line circuits 211, 212. ..., 21n;
Office line relay stand 311. ... 31n; Office line relay board control circuit 411. ...*41n:) Ranks 611, 612°, . . . , 61n Only processing related to the switching network 51 is performed.

Signal control processor 712 connects telephone extension 12L 122. to switching network 52.・
... 12n; line circuits 221, 222. ..., 2
2n; Office line relay board 321, . . . , 32n; Office line relay board control circuit 421. ....

42n; trunk 621, 622. . . . performs only processing related to the 62n switching network 52.

Similarly, the signal control processor 7ml is connected to the switching network 5mK, the extension telephone 1ml, 1m
2. ..., imn; line circuit 2m1.2m2.・・・
・＞2rn n; Office line relay stand 3m1. ... 3m
n *Station line relay board control circuit 4m1゜...y4mn;)
Rank 6ml, 6m2. ...t 6mn Only processing related to the switching network 5m is performed.

That is, in the signal control processor, a group of devices processed by each signal control processor is fixed on the hardware.

There is no fixed correspondence between the connection control processor and the switching network and the devices connected to the switching network, but it is possible to associate the connection control processor with all four signal control processors, that is, to transfer control information.

That is, the connection control processor 911 can transfer control information to the signal control processor 711 via the bus 82, can transfer control information to the signal control processor 721, and similarly can transfer control information to the signal control processor 7ml. I can do it.

Similarly, connection control processors 921, . . . , 9p1 also control all signal control processors 711, 721 . ...
1m1 and control information can be transferred.

The connection control processors 911, 92L, . . . , 9p1 all have the same processing ability and function, and the number of connection control processors is determined according to the call volume of activation requests to the connection control processors from the signal control processors.

The data memory 101 is a memory for storing system-necessary information such as number group information and translator information, and is composed of a memory control block 102 and a memory block 103.

Data memory 101 and all connection control processors 91
Information can be transferred between L92L... and 9p1.

The connection control processors 911, 92L, . . . , 9p1 and the data memory 101 are connected by a bus 83, that is, an information transfer lead.

Next, the connection control operation in the case of extension mutual calling connection will be explained.

The extension telephone 111 is the extension telephone 111-line circuit 21.
When the extension telephone 111 dials while connected to the calling register trunk 611 by the path 1-switching network 51-calling register trunk 611, the dialed number information is received by the calling register trunk 611.

The number information received by the transmission register trunk 611 is detected and stored in the trunk control block 715 of the signal control processor 711.
5 is stored in the number information storage memory.

A pre-translation operation is performed in trunk control block 715 to identify the first digit of this stored number information and determine the number of digits that need to be received.

The trunk control block 715 detects and stores the number information sent from the extension telephone 111, and when the reception of the required number of digits determined by the pre-translation operation is completed, the trunk control block 715 indicates that the reception has been completed.
When V7c is identified, an activation request signal for requesting the extension intercall connection activation to the connection control processor is stored in the connection control processor activation flag memory in the connection control processor interface block 716.

The connection control processor 911 is not currently executing connection control, and the connection control processor 911 is not currently executing connection control.
If an activation request from the ffilJ signal control processor is being detected, the signal control processor interface block 912u connection control processor interface blocks 716, 726 . ..., the connection control processor activation flag memory of 7m6 is scanned one after another, and an activation request from the signal control processor 711 is detected.

The activated signal control processor interface block 912 knows that number information has been received by the trunk control block 715 of the signal control processor 711, but it is necessary to identify what call type the number information relates to. There is.

To identify the activated call type, the signal control processor interface block 912 sends the first numeric information of the received number information to the memory control block 102 of the data memory 101 through the bus 83.

The memory control block 102 reads call type information corresponding to the received number information from the translator information in the memory block 103 and stores the call type information in the memory control block 102.

This call type information is sent from the memory control block 102 through the bus 83 to the signal control 7'' controller interface block 912 of the connection control processor 911.

When the signal control processor interface block 912 receives this information, the connection control block 913V starts the extension mutual calling connection control tone corresponding to the call type information, that is, the extension mutual calling connection information? c Send a start signal.

When the extension mutual call connection control is started, the signal control flow controller 912 sends an instruction to send accommodation position information of the calling extension telephone 111 in the switching network 751 to the path 82M connection control-10 processor interface block. 716 to switch control block γ14.

Upon receiving this instruction, the switch control block 714 identifies the accommodation location information of the calling extension telephone 111 from the connection state memory of the switch control block 714, and transfers this identified accommodation location information to the connection control interface block 716.
, bus 82, signal control processor interface block 912 to connection control block 913, and is stored in connection control block 913.

An instruction to send number information for the called extension is then sent to the trunk control block 715 through the signal control processor interface block.

Upon receiving this instruction, the trunk control block 715 selects from the number information storage memory of the trunk control block 715 the connection control processor interface block r16゜bus 82, the signal control processor interface block 9.
12 to the connection control block 913 of the connection control processor 911 and stored in the connection control block 913.

The connection control block 313 transfers the number information of the called extension stored in the connection control block 913 to the signal control processor interface in order to identify the accommodation location information of the called extension on the line side of the switching network. block 912, memory control block 102 of data memory 101 through bus 83;
send to

The memory control block 102 reads line-side accommodation position information of the switching network corresponding to the received number information from the number group information of the memory block 103, and stores the accommodation position information in the memory control block 102.

Now, this identified called extension is extension 112.
Then, the memory control block 102fli,
Information on the accommodation position of the extension telephone 112 on the line side of the switching network 52 is stored.

This accommodation position information is stored in the memory control block 102.
from the bus 83 to the connection control block 913 through the signal control processor interface block 912 and stored in the connection control block 913.

Connection control block 913 then connects extension 1 stored in line control block 713 of signal control processor 111 to identify the idle state of extension 112.
An instruction to send all busy information of 12 is sent to line control block 113 via signal control al7' processor interface block 912, bus 82, and connection control processor interface block 116.

Upon receiving this instruction, the line control block 713 sends all busy information of the extension telephone 112 to the connection control block 913 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.

When the connection control block 913 that has received this information identifies that the extension telephone 121 on the called side is in an idle state, it then moves to an extension mutual trunk selection operation.

The connection control block 913 instructs the signal control processor interface block 912 to send the trunk type information and all-busy information stored in the trunk control block 715 of the signal control processor 711 in order to select an empty extension trunk. bus 82 to trunk control block 715 through connection control processor interface block 716.

Upon receiving this instruction, the trunk control block 715 sends the trunk type information and all busy information to the connection control block 913 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.

Based on the trunk type information and all-busy information, the connection control block 913 selects an empty extension mutual trunk, and connects the accommodation position information of the trunk on the trunk side of the switching network 51 to the connection control block 913.
memorize it internally.

Now, assuming that the trunk 612 is a vacant extension-to-extension trunk, the accommodation position information of the trunk 612 in the switching network 51 is stored in the connection control block 913.

Since the trunk 612 is assumed to be an extension trunk, it is assumed that the output side of the trunk 612 is turned back and connected to the trunk side of the switching network 51, although not shown.

Next, the calling side extension telephone 111 and the extension mutual trunk 612
and an empty channel to connect between one terminal of the called extension telephone 112 and the other terminal of the extension trunk 612. The signal control processor interface block 912, bus 82,
to the switch control block 714 through the connection control processor interface block 716.

Upon receiving this instruction, the switch control block 714 transmits all the link busy information to the connection control block 91 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.
Send to 3.

Connection control block 91 based on all busy information of this link
3, the links are matched and an empty channel is connected between the calling side extension telephone 111 and one terminal of the extension mutual trunk 612, and an empty channel is connected between the called side extension telephone 112 and the other terminal of the extension mutual trunk 612. Select an empty channel.

The calling side extension telephone 111. which has been identified by the above connection control operation. Called side extension telephone 112, extension mutual trunk 6
The accommodation position information of the two terminals of 12 in the switching network 51 and the channel information of the switching network 51 connecting therebetween are provided by the connection control block 9.
It is stored in 13.

These calling side extension telephones 111 and mutual extension trunks 6
Accommodation position information in the 12 switching networks 51 and the switching network 5 connecting between them
1 channel information and a call route switch closing instruction, the accommodation position information in the switching network 51 of the called side extension telephone 112 and the extension mutual trunk 612, the channel information of the switching network 51 connecting therebetween, and the call route switch closing. configuration instructions and calling party's extension telephone 1
11. Connection control block 913 to signal control processor interface block 912, bus 82, W The aperture control 7' is sent to the switch control block 714 through the throttle interface block 716.

The switch control block 714 closes the communication path switch of the switching network 51 based on this instruction, and connects the calling side extension telephone 111 - line circuit 211 - switching network 51 - mutual extension trunk 612 - switching network 51 - line circuit 212 - The communication path between the called side extension telephone 112 is connected, and at the same time, the communication path between the calling side extension telephone 111, the line circuit 211, the switching network 51, and the calling register trunk 611 is disconnected.

However, at this point, the communication path is disconnected within the line circuit 212 on the called side.

Next, in order to send a calling signal to the called extension telephone 112, the connection control block 913 connects the called extension telephone 112 to the called extension telephone 112.
The storage position information and call signal sending instructions in the switching network 51 of the line circuit 212 corresponding to the signal control processor interface block 912, bus 82, and connection control processor interface block 7
16 to line control block 713.

Upon receiving this information, the line control block 714 operates a relay in the line circuit 212 to send a ringing signal to the called extension telephone 112.

In order to send a ring tone to the calling side extension telephone 111, the connection control block 913 transmits accommodation position information and a ring tone transmission instruction in the switching network 51 of the mutual extension trunk 612 to the signal control processor interface block 912 and the bus. 82, to the trunk control block 715 through the connection control processor interface block 716.

The trunk control block 715 receives this information, and
The relay in the inter-extension trunk 612 is activated to send out the ring tone.

Here, the calling side extension telephone 111 is connected from the extension mutual trunk 612 to the extension mutual trunk 612 switching network 51 - line circuit 211 - calling side extension telephone 11
A ringing tone is sent to the calling side extension telephone 111 through route 1, and a ringing signal is sent from the line circuit 212 to the called side extension telephone 112.

At this time, within the line circuit 212, the calling side extension telephone 111
The communication route to has been cut off.

Calling side extension telephone 1 in switching network
11 accommodation position information, accommodation position information of one terminal of the extension mutual trunk 612, channel information between the calling side extension telephone 111 and one terminal of the extension mutual trunk 612, accommodation position information of the called side extension telephone 112, The connection state of the switching network 51, including accommodation position information of the other terminal of the mutual extension trunk 612 and channel information between the called side extension telephone 112 and the other terminal of the mutual extension trunk, is stored in the connection state memory of the switch control block 714. In order to do this, these information and a connection state memory write instruction are sent from the connection control block 913 to the switch control block 714 through the signal control processor interface block 912 bus 82 and the connection control 7' processor interface block 716, and control block 7
This information is stored in 14 connection state memories.

Thereafter, the connection control block 913 sends a recovery signal to the connection control processor interface block 716 through the signal control processor interface block 912 and the bus 82, and the connection control processor 911 recovers and completes the extension mutual call connection control operation. In the above connection control operation, if the switching network 51 does not accommodate any mutual extension trunks, or if it accommodates mutual extension trunks but there are no vacant trunks, or if there are any vacant mutual trunks. However, if there is no empty channel, an empty extension mutual trunk accommodated in a switching network 52...p5m that is different from the switching network 51 that accommodates the calling side extension telephone 111 is selected. Do the action.

The trunk selection operation, channel selection operation, communication path switch control operation, etc. in such a case are not directly related to the gist of the present invention and will therefore be omitted here.

The connection control operation that is different from the extension mutual call connection control operation has been described above.

Dialing tone connection control operation, extension mutual response control operation, central line outgoing connection control operation, local line incoming connection control operation, leased line outgoing connection control operation, leased line incoming connection control operation, relay connection control operation, automatic transfer connection control operation , speed dial connection control operation,
Similar connection control operations are performed for other types of connection control, such as variable missed transfer connection control operations.

Since the gist of the present invention can be understood through a detailed explanation of the connection control operation of the extension mutual call connection control operation, explanation of other connection control operations will be omitted.

As described above, according to the present invention, it is possible to create an optimal system according to the conditions required of the exchange by always using the same control method for the large and small line capacity of the exchange and the various functions of the exchange. can.

Namely. According to the present invention, small capacity (100 lines or less)
A control system that allows the same model to cover large capacity (several hundred lines or more) cabinets, as well as multiple applications such as private branch exchanges, Centrex exchanges, central office exchanges, and data exchanges. is obtained.

Since it is possible to configure an optimal system according to the line capacity, the price of the central control circuit can be increased in proportion to the number of lines, and there is a control method that can cover everything from small capacity to large capacity in terms of price. can get.

Furthermore, it becomes possible to share hardware and software from small to large-capacity cabinets, shortening the development period and reducing costs due to the mass production effect of sharing hardware.

Furthermore, according to the control method of the present invention, a control method can be obtained in which an inexpensive general-purpose microprocessor can be easily introduced into the central control circuit of the exchange.

Currently, there are many inexpensive microprocessors on the market, and it is important to make effective use of them in order to reduce the cost and simplify the control circuits of switching equipment.

However, current inexpensive general-purpose microprocessors have slow processing speeds, and one processor can handle 100 to 20 lines.
The processing capacity is only about 0 lines.

Therefore, if a plurality of inexpensive general-purpose microprocessors are used and the multiprocessor control method of the present invention is adopted, sufficient processing power can be obtained to control a large-capacity exchange.

That is, the present invention divides the functions of the control system of an automatic switching system into several blocks, and by deploying an inexpensive general-purpose microprocessor in correspondence with each block, the work that each processor must handle can be handled. The control system can be configured so that the processing power of an inexpensive general-purpose microprocessor is sufficient.

At this time, instead of providing memory for storing various data such as system data and subscriber data in correspondence with each of the plurality of processors constituting the central control circuit, the data is stored by providing a common memory in the system. The amount of memory can be reduced, the price can be reduced, and the mounting space can be reduced.

Also, by sharing data memory in this way,
System malfunctions due to data differences between memories can be prevented.

As a result, the failure handling method and maintenance processing method of the system can be simplified, and the overall system configuration can be simplified.

In the embodiment of the present invention, the control range of all signal control processors includes extension telephones, line circuits, central office relay stations,
We have described a system that includes the central office line relay board control circuit and trunk control functions; It is clear that a single type of equipment or any combination of several types of equipment may be included among the equipment, and the number of each type of equipment is also arbitrary.

In the detailed explanation of the present invention, the case where the line control block, office line relay control block, trunk control block, and switch control block are all housed in the signal control processor has been explained, but the line control block, office line relay control block , the trunk control block, and the switch control block may each be included in a signal control processor or may be provided with an independent processor.

In the embodiment of the present invention, it is assumed that the plurality of connection control processors all have the same processing power and function, but it is possible that the processing power is different but the function is the same, or the processing power is the same. It is clear that the functions may be different, and the processing capabilities and functions may also be different.

In the embodiment of the present invention, the bus between the signal control processor and the connection control processor and the bus between the connection control processor and the data memory are different buses, but it is clear that they may be the same bus. It is.

Further, although the bus between the connection control processor and the channel switch memory and the bus between the connection control processor and the data memory are the same bus, it is clear that they may be different buses.

In short, it is clear that the buses between the signal control processor and the connection control processor, between the connection control processor and the data memory, and between the connection control processor and the call name switch memory may be the same or different.

In addition, in the embodiment of the present invention, it has been described that the number of received digits of extension interconnection number information can be determined by identifying the first digit of the number information. It is clear that any numbering plan has nothing to do with the gist of the present invention.

In the drawings showing the embodiments of the present invention, the types of trunks such as calling register trunks, inter-extension trunks, central office line trunks, leased line trunks, and other special trunks are not shown but are generally shown.

The control system method of the present invention may be a wired logic method,
A stored program method may be used, and electronic components such as integrated circuits and semiconductors may be used as parts constituting the control system circuit, and electromagnetic components such as relays may be used.

Furthermore, the communication system of the present invention may be a space division system or a time division system, and the parts constituting the communication path circuit may include a current holding type switch, a magnetic holding type switch, a mechanical holding type switch, a relay electronic switch, Electronic components such as integrated circuits and semiconductors may also be used.

In the embodiment of the present invention, the line circuit performs functions such as sending a ringing signal to an extension telephone and detecting a response from the extension telephone.

Although this control is carried out by the line control block of the signal control processor, the sending of a ringing signal to the extension telephone, detection of a response from the extension telephone, etc. is carried out by the trunk, and this control is carried out by the trunk control block of the signal control processor. It is clear that this can be done in

In the preferred embodiment of the present invention, the ringing tone for the extension telephone is transmitted by the trunk, and this control is performed by the trunk control block of the signal control processor. It is clear that the transmission can also take place in a line circuit and the control in a line control block of the signal control processor.

The configuration of the communication path system is merely an example in the embodiment of the present invention, and it is clear that other configurations of the communication path system do not affect the gist of the present invention.

Although several examples of the arrangement of the communication path switch memory have been described in the embodiments of the present invention, it is clear that the gist of the present invention will not be affected even if the arrangement method is changed.

[Brief explanation of the drawing]

1 is a block circuit diagram showing an embodiment of the present invention. FIG. In the figure, 11L112. ... 11n. 121.122. ..., 12n, 1mL 1m2゜y
lmn・・・Extension telephone, 21L212. ...
21n, 221, 222. ..., 22n, 2m 1°2m2. ...2mn...line circuit, 31
1. ...31n, 32L ..., 32n, 3mL・
...s 3mn...Station line relay stand, 411.・
・・・ 41n, 421°..., 42n, 4ml,...
・p 4mn・・・・・・Station line relay board control port L 51
,52,...,5m...Switching network, 611,612= ・",61n. 621.622...62n, 6mL 6m2゜...s 6mn...Trunk , 711, 72
1. .... 7ml... Signal control processor, 712, 72
2°..., 7m2...Station line relay board control block, 713°723,..., 1m3...Line control block, 714.724. ..., 7m4...
...Switch control block, 715, 725.・・・
・,7m5・・・Trunk control block, 716
, 726. ..., 7m6...Connection control 7' controller interface block, 81...Jumper, 82.83...Bus, 911°921,...
..., 9p1... Connection control processor, 912.
922. ...9p2...Signal control processor interface block, 913,923°...
, 9p3...Connection control block, 101...
...Data memory IJ, 102...Memory control block, 103...Memory block.

Claims (1)

[Claims] 1. A signal control processor having a control means for detecting a control signal arriving from an external device to a device connected to a communication network, and a control means for sending a control signal from the device connected to the communication network to the external device. One or more connection control processors are provided corresponding to a group of devices connected to the determined communication path network, and which perform selective connection control of the communication path network, depending on the amount of calls applied to the connection control processor, Furthermore, in a multiprocessor-controlled automatic telephone exchange in which the switching system is controlled by separating the signal control processor, the connection control processor, and the means for transmitting news between these processors, the signal control processor and the A common data memory for semi-fixedly storing data necessary for the connection control processor to execute exchange processing is connected to and independently arranged in the information transfer means, and the data is transmitted from at least one of the signal control processor and the connection control processor. A data memory control method in an automatic switching machine characterized by using memory to execute switching processing.