JPH01189257A - System for controlling input/output terminal accommodation to exchange - Google Patents

Abstract

PURPOSE:To uniformly and easily control input/output terminals and simultaneously, to standardize and economize a time division exchange system by accommodating the input/output terminals to an exchange in the same way as a subscriber corresponding digital terminal and controlling them. CONSTITUTION:A central control processing unit 1 and a main memory 2 of the time division exchange are connected through a common bus 3 to a time division network 4. Many input/output devices 51-5m for maintenances and operations and for reading information from a data base on the main memory 2 are provided. Many digital terminals 61-6n corresponding to subscribers are provided, and they are accommodated through terminal interface circuits 7 and 70 and PCM highways 8 and 80 in the time division network 4. For example, every information from the input/output terminal 51 is inserted into a prescribed signal channel by a multiple separating circuit 11. Data base information requested by the terminal 51 in the main memory 2 is inserted into the signal channel on the down PCM highway 8 and transferred to the input/output terminal 51.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a digital terminal for subscribers accommodated in a time-division exchange network with the same interface.
This invention relates to a control method for accommodating and controlling input/output terminals in a switchboard, which accommodates and controls input/output terminals used for maintenance and operation of the switchboard.

[Prior Art] In general, time-sharing electronic exchanges are equipped with various input/output terminal devices such as CRT displays and typewriters, as well as personal computers and multi-function telephones, for maintenance and operation purposes or for reading information from databases. It has an intercommunication function used in networks. A large number of terminals, such as digital terminals for subscribers, are now accommodated.

Until now, in order to control the input/output terminal equipment, the input/output terminal equipment was controlled by the central control of the exchange via a channel device, an I10 processor, etc., as described in Japanese Patent Laid-Open No. 60-91796. It is controlled by a processing device. Incidentally, digital terminals for subscribers are housed in a switch unit of a time division switch because switching control of communication is required in order to carry out communication between digital terminals.

[Problems to be Solved by the Invention] However, in the above-mentioned prior art, due to its configuration, it is not only necessary to use separate control devices with different functions to operate the input/output end floor device and the digital terminal device for subscribers. , it is necessary to provide an input/output control device that corresponds to the input/output terminal device in the central control processing unit of the time division switch, and the processing capacity of this input/output control device and implementation limitations on the central control section may accommodate This had the problem that the number of input/output terminal devices was limited.

An object of the present invention is to provide a control method for accommodating input/output terminals in an exchange, which allows input/output terminal devices to be easily controlled by normal call processing control, and in which a large number of input/output terminal devices can be easily accommodated in the exchange. It is to serve.

[Means for Solving the Problems] The above object is achieved by accommodating and controlling input/output terminals in an exchange in the same way as subscriber-compatible digital terminals. That is, subscriber-compatible digital terminals are accommodated in the exchange via a terminal interface circuit connected to the PCM highway, and input/output terminals are accommodated in the exchange through a similar interface.

[Function] The terminal interface circuit according to the present invention is located between the PCM highway of the time division exchange, the input/output terminal device, and each digital terminal corresponding to the subscriber, and transmits and receives information from both terminals to a predetermined location on the PCM highway. It has a control function that determines whether to transmit using a signal channel or a data channel.

Specifically, for example, the terminal interface circuit controls all transmission and reception information for input/output terminal devices to be transmitted through signal channels on the PCM highway, while transmission and reception information for subscriber-compatible digital terminals is controlled by the activation and If it is signal information such as disconnection, it is sent and received on the signal channel on the PCM highway, but if it is voice information or information sent and received with other subscriber compatible digital terminals, it is generally sent and received on the data channel on the PCM highway. It is working to do that.

On the other hand, the central control processing unit of the time-division exchange scans the contents of the signal channels on the PCM highway that are time-division multiplexed by normal call processing operations, and at the same time centrally controls the signal channels on the PCM highway by time-division processing. Information from the processing device is sent out. That is, if the signal channel information on the PCM highway is related to the maintenance and operation of the exchange, the central control processing unit executes the exchange maintenance and operation processing such as system switching and traffic data collection, and transmits the results to the appropriate PCM highway. The information is sent out on a signal channel and sent out to an input/output terminal device via a terminal interface circuit. Incidentally, if the information on the signal channel on the PCM highway is a connection request from a certain subscriber-compatible digital terminal to another digital terminal, then the data channel comrades on the PCM highway that correspond to that signal are determined in advance. In order to enable communication between these digital terminals, a command is sent to the time division switching switch to perform switching operations such as time slot conversion using normal call processing functions within the time division switching network. It is now sent out.

At the same time, all subsequent information from these terminals is PCM.
A signal channel on the PCM highway is used to notify the terminal interface circuit that transmission/reception is to be performed on the data channel on the highway. From this point on, data communication will be performed between digital terminals that support subscribers.

As mentioned above, information from or to the terminal can be transferred to the PC.
An input/output terminal device is connected via the terminal interface circuit and the PCM highway, which has a control function for transmitting and receiving data using the signal channel on the M highway or the data channel.
When accommodated in a switch in the same way as subscriber-compatible digital terminals, the input/output terminals can be easily controlled by normal call processing operations, and are not limited to the processing capacity of the central control unit or the capacity of the time-division switching network. This makes it possible to accommodate as many input/output terminal devices as possible in the exchange.

[Example] Hereinafter, the present invention will be explained with reference to the accompanying drawings.

The figure shows how input/output terminals according to the present invention are housed in a time division switch. In this case, as shown in the figure, a central control processing unit 1 and a main memory 2 as the main components of the time division switch are connected to a time division network 4 via a common bus 3, and the time division network 4 is also connected to A large number of input/output devices 5□ to 5 used for operations, reading information from the database on the main memory 2, etc.
1 and a large number of digital terminals 6□-6o for subscribers such as personal computers and multi-function telephones are accommodated via terminal interface circuits 7, 70 and a PCM highway 8.80.

Now, assuming that there is a startup request from the input/output terminal device 5□, the request is detected by the control circuit 10 in the terminal interface circuit 7 via the signal line 9, and based on this, the control circuit IO is activated. After converting the activation signal from the input/output terminal 51 of the central control processing unit 1 into a predetermined digital bit pattern string to notify that activation has occurred, the demultiplexing circuit 11 inserts this into a predetermined signal channel on the PCM highway 8. It is designed to be sent as soon as possible. PC
On the M highway 8, information from other terminals is time-division multiplexed onto predetermined signal channels and data channels and transmitted and received.
The activation signal inserted into a predetermined signal channel on the CM highway 8 is used for normal call processing operations (
The signal channel is generally taken into the central control processing unit 1 by the time division network 4 (in which insertion information is inserted and removed from the central control processing bag @1), and in the central control processing unit I\1, the input/output terminal device 51 It is known that there was a launch from. Thereafter, the input/output terminal device 5 is processed by the central control processing device 1 within the time-sharing network 4.
An activation confirmation signal converted into a predetermined bit pattern string is inserted into a predetermined signal channel on the downlink PCM highway 8 to □. On the other hand, the control circuit 10 in the terminal interface circuit 7 constantly monitors the signal channel on the downlink PCM highway 8, and when an activation confirmation signal is detected from a predetermined signal channel, the input/output terminal device 5. At the same time as sending a startup confirmation signal to
The route switching circuit 12 is also used to insert data information (all information other than signal information such as start-up, disconnection, etc.) from the input/output terminal device 5° that arrives thereafter into the signal channel on the PCM highway 8.
is fixedly switched to the control circuit 10 side by a selection signal. As a result, the input/output terminal device 5. All the information from the control circuit 10 is inserted into a predetermined signal channel by the demultiplexing circuit 11.

The central control processing unit 1 reads all information from the input/output terminal device 51 through normal call processing operations, and as a result of analyzing this information, for example, a request is made to read the contents of a database in the main memory 2. If it is identified as , the database information in the main memory 2 is inserted into the signal channel on the downlink PCM highway 8 in the same way as the activation confirmation signal described above, and is transferred to the input/output terminal device 51 via the signal channel. It is a matter of fact.

In this way, communication is established between the input/output terminal device 5□ and the central control processing unit 1, but communication between other input/output terminal devices 5.1 and the central control processing unit 1 is also established as described above. In the same manner as above, other predetermined signal channels on the PCM highway 8 are time-division multiplexed.

By the way, to explain the case where communication is carried out between subscriber-compatible digital terminals (assumed to be multifunctional telephones in this example) 6 □ and 6 □, first, the activation signal from the digital terminal 6 □ is activated by the control within the interface circuit 70 If detected by the circuit 100, the activation signal is converted into a predetermined digital bit pattern string in the same way as in the case of an input/output terminal, and the demultiplexer circuit 110 in the interface circuit 70 converts the activation signal to a predetermined signal channel on the PCM highway 8. It is designed to be inserted into. In the central control processing unit 1, the activation signal is recognized by normal processing control, and when it is confirmed that it is from the digital terminal 6□, the central control processing unit 1 recognizes the dial information that will arrive next. They are expected to wait as long as possible. On the other hand, since the control circuit 100 in the terminal interface circuit 70 switches the route switching circuit 120 to the control circuit 100 side by the route selection signal, the destination dial information transmitted from the digital terminal 61 is transferred to the route switching circuit. 120, is inserted into the signal channel on the PCM highway 8 via the control circuit 100 by the demultiplexer circuit 11O, and is notified to the central control processing unit 1.

When the central control processing unit 1 identifies that the other party's dial information is that of the digital terminal 6n, it first switches the switch in the time division network 4 to the digital terminal 61.
, 6□, and at the same time, a reception preparation signal is sent to the digital terminal 6n using a signal channel. In this example, the control circuit 100 connects the central control processing unit 1 to the digital terminal 6□.
It is designed to send out a signal ready to receive from.

That is, the control circuit 100 sends information from the central control processing unit 1 to the digital terminal 6n via the signal line 90 as a reception preparation signal. At the same time, the control circuit 100 connects the digital terminal 6 in the route switching circuit 120.
The route corresponding to n (in the route switching circuit 120, there is a switching circuit corresponding to the terminal, and each route can be set independently) is set on the − hour control circuit 100 side. It has become.

On the other hand, when the central control processing unit 1 completes the settings of the switches in the time division network 4, it sends an activation confirmation signal to the digital terminal 6□ using the signal channel.
Based on this, the control circuit 100 sends an activation confirmation signal to the digital terminal 61 via the signal line 90, and at the same time sets the route corresponding to the digital terminal 6□ in the route switching circuit 120 on the control circuit 100 side. It has become. Thereafter, the digital terminal 61 inserts a control signal corresponding to the function for which the digital terminal 6n should be prepared into a predetermined signal channel on the PCM highway 8 via the terminal interface circuit 70, while the central control processing unit 1 They are decoded, and the decoding results are sent to the digital terminal 6 via a terminal interface circuit 70 as a function preparation signal using a predetermined signal channel. When communication is enabled between the digital terminals 6□ and 6o by completing the transmission and reception of these signals, the terminal interface circuit 70 receives a command from the central control processing unit 1 and switches the digital terminal 6□ in the strategy switching circuit 120. A strategy corresponding to 16n is set on the demultiplexing circuit 110 side, and from then on, between the digital terminals 6□t6n, information is inserted into a predetermined data channel in the demultiplexing circuit 110, and extracted from a predetermined data channel. The data will be sent and received via a switch in the time division network 4 that has been set in advance. That is, the digital terminals 6□, 6 are connected via the data channel on the PCM highway 8 and the time division network 4.
Two-way communication will take place between □.

If.

If it is desired to switch the function settings between the digital terminals 6□16n during this communication under the control of the central control processing unit 1, a route switching request signal is sent from either of the digital terminals 61 and 6n via the signal line 90. It is now sent out. The control circuit 100 uses the signal channel on the PCM highway 8 to notify the central control processing unit 1 and to communicate with each other's digital terminals 6 in the same manner as described above.
The internal routes of the route switching circuit 120 corresponding to 1 and 6n are set on the control circuit 100 side, and the function setting switching is performed according to instruction information from the central control processing unit 1.

As mentioned above, the sending and receiving of information to and from input/output terminals is performed using a PC.
1 Normal call processing is performed by accommodating and controlling input/output terminals in a time-division network via a terminal interface circuit that has the function of controlling whether processing is performed on a signal channel or a data channel on M Highway 8. Through control, a plurality of input/output terminals can be easily and unifiedly controlled in the same way as a plurality of subscriber-compatible digital terminals.

Note that neutral number 13.130 in FIG. 1 indicates a cable driver/cable receiver.

Although the present invention has been described above, information about input/output terminals is exchanged via a data channel in some cases, and when a unique telephone number is assigned to an input/output terminal, it is controlled in the same way as a digital terminal. You will get it.

[Effects of the Invention] As explained above, according to the present invention, time division switching can be performed using a normal call processing program without installing a channel device or special input/output control device in the central control processing system of a time division switch. Not only can input/output terminals used for switching equipment maintenance and operation and database reading etc. be uniformly and easily controlled, but there are no restrictions such as restrictions on implementation in the central control processing system, so the switching equipment for input/output terminals can be easily controlled. It becomes easy to accommodate a large number of time-sharing exchange systems, and as a result, the time-sharing exchange system can be standardized and made more economical.

[Brief explanation of the drawing]

The figure is a diagram showing how input/output terminals according to the present invention are housed in a time division switch. 1... Central control processing unit, 2... Main memory, 3...
・Common bus, 4... Time division network, 5□~5.
...Input/output terminal device, 61-6□...Digital terminal, 7゜70...Terminal interface circuit, 8,80
...PCM highway, 9,90...signal line, 10
．． 100... Control circuit, 11, 110... Demultiplexing circuit, 12.120... Route switching circuit. Agent Patent Attorney Masami Akimoto

Claims (1)

[Claims] 1. A control method for accommodating various input/output terminals used for maintenance and operation of switching equipment or reading databases into a time-sharing switch, in which each of the various input/output terminals is connected to the time-sharing switch network by a terminal interface circuit, PCM, etc. A control method for accommodating input/output terminals to an exchange, which is characterized by accommodating them via a highway and controlling them in the same way as subscriber-compatible digital terminals.