JPH0226435A - Data communication connecting system - Google Patents

Abstract

PURPOSE:To make unnecessary recalling and the repetition of a dialing operation by a caller by connecting as soon as a called-side computer becomes idle even when it is busy. CONSTITUTION:The system is made by connecting a stored program control system exchange(SPC) with a computer by a signal line, the SPC is equipped with a central processing unit(CPU) 1, a main switch(SW) 5 and line circuits (DLC) 6 and 7 connected to the SW 5, and a data terminal(DTE) 8 and a computer (HOST) 4 are connected to the DLC 6 and 7 respectively. Here, by sending data communication connecting request information from the calling-side DTE 8 to the called-side HOST 4, the SW 5 is controlled in accordance with connection control information from the called-side HOST 4 and thus, a data communication connection between the DTE 8 to request a data communication and the called-side HOST 4 is made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data communication connection system for connecting lines accommodated in exchanges using control information from a computer connected to a storage program controlled exchange.

[Conventional technology]

Conventionally, in the data communication connection method for this type of system, dial information from a computer or a data terminal is received, and based on that dial information,
It controlled the switches in the exchanges that accommodated the lines, and connected the desired lines for data communication.

[Problem to be solved by the invention]

In the conventional data communication connection method described above, connection control between the required lines was performed based on dial information from a computer or data terminal. If so, the disadvantage is that the computer or data terminal must make a re-call and send the dialing information, and this operation must be repeated until the called computer becomes free.

[Means to solve the problem]

The data communication connection method of the present invention is a system in which a storage program controlled exchange and a computer are connected by a signal line, in which a central processing unit of the exchange has a terminal interface unit that interfaces with a data terminal housed in the exchange. , a computer interface unit that interfaces with the computer; a connection request information transmitting unit that transmits data communication connection request information from the data terminal to the computer; and a connection control information receiving unit that receives connection control information from the computer. , a connection control unit that controls connections between lines accommodated in the exchange based on the connection control information; and a connection control result transmission unit that transmits a connection result between the lines by the connection control unit to the computer. It is characterized by having the following.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, the system of this embodiment connects a storage program controlled exchange (hereinafter referred to as 5PC) and a computer via signal lines, and the SPC is connected to a central processing unit (hereinafter referred to as CP).
U) 1, a main switch (hereinafter SW), etc., and a line circuit (hereinafter DLC) 6.7 connected to SW5,
C6 and C7 each have a data terminal (hereinafter referred to as DTE) 8. A computer (hereinafter referred to as HO3T) 4 is connected. CPU
1 is a terminal interface unit (hereinafter referred to as TIF) 11 that interfaces with the DTE 8 via the DLC 6. and signal line 2
．． A computer interface unit (hereinafter referred to as HIF) 13 that interfaces with HO3T4 via HO3T4 and DLC6
, a connection request information transmitter (hereinafter referred to as RQS) 12 that transmits data communication connection request information from the DTE 8 via the HIF 13° signal line 3 to the HO3T4 via the TIFI 1, and a signal line 2. Connection control information receiving unit (hereinafter referred to as REC) 14 that receives connection control information from HO3T4 via HIF 13
and a connection control unit (hereinafter referred to as 5WC) 15 that controls connections between lines accommodated in SW 5 based on connection control information from REC 14, and HrF13. It includes a connection control result transmitter (hereinafter referred to as R, LT) 16 that transmits to the HO9T4 via the signal line 3.

Next, the operation of this embodiment will be explained.

First, a data communication connection request button (not shown) is pressed on the DTE 8. This pressed button information is received by the TIFll via the DLC 6 and analyzed.

The analysis results are conveyed to RQS12, and from RQS12 HI
F13. Data communication connection request information is sent via signal line 3.
A communication connection request is sent to O3T4, and the DTE8 that made the connection request at this time enters a connection waiting state. after that,
When the HO3T4 becomes connectable to the DTE8 that is waiting, it notifies the REC14 of connection control information via the signal line 2 and the HIF13. This connection control information includes line information of the DTE 8 and HOST 4 on the other side to be connected. The REC 14 transmits the received connection control information to the 5WC 15, and the 5WC 15 controls the SW 5 to connect the line between the DLCs 6 and 7, and notifies the RLT 16 of the completion of the connection. The RLT 16 transmits this connection result information to the HIF 13. Send to HOST4 via signal line 3, DTE8 and HO3T4
can perform data communication using the path DLC6-3W5-DLC7.

In this embodiment, the calling side is the DTE8, but it may be a computer instead of a data terminal.

〔Effect of the invention〕

As explained above, according to the present invention, data communication connection request information from a data terminal or computer on the calling side is simply sent to the computer on the called side, and according to the connection control information from the computer on the called side, By controlling the main switch, a data communication connection is established between the data terminal or computer requesting data communication and the called computer, and as soon as the called computer becomes free, even if the called computer is busy. Since this connection is established, the calling party does not have to repeat calling and dialing operations.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1... Central processing unit (CPU), 2.3... Signal line, 4... Computer (HO3T), 5... Main switch (SW), 6.7... Line circuit (DLC) ,
8... Data terminal (DTE), 11... Terminal interface section (TIF), 12... Connection request information sending section (RQS), 13... Computer interface section (HIF), 14... Connection Control information receiving section (R, E
C), 15... connection control section (SWC), 16... connection control result transmission section (RLT).

Claims (1)

[Claims] In a system in which a storage program controlled exchange and a computer are connected by a signal line, a central processing unit of the exchange includes a terminal interface unit that interfaces with a data terminal housed in the exchange, and a computer interface unit that interfaces with the computer. a connection request information transmitter that transmits data communication connection request information from the data terminal to the computer; a connection control information receiver that receives connection control information from the computer; Data communication comprising: a connection control unit that controls connections between lines housed in an exchange; and a connection control result transmission unit that transmits connection results between the lines by the connection control unit to the computer. Connection method.