JPS59123350A - System for incorporating different kind of terminal - Google Patents

Abstract

PURPOSE:To eliminate an interface circuit between an outgoing trunk and a CP (controller) bus by providing a trunk converting a selecting signal transmitted from a terminal other than that of a special kind into a selecting signal used for a terminal of the special kind. CONSTITUTION:Outgoing register trunks ORT-T and ORT-X are provided corresponding to each terminal in order to connect plural kinds of terminals transmitting different form of selecting signals to an exchange, e.g., a telephone set T and telexes TX1, TX2. The selecting signal from the telephone set T is transmitted to a CP bus B via the ORT-T and an interface circuit IFT for telephone set. When the selecting signal is transmitted from the telex terminal TX1, the trunk ORT-X for telex receives and stores this signal via a bus (1). When the storage is finished, a bus (2) is set. The ORT-X converts the stored selecting signal into the signal form for telephone set and transmits it to an idle trunk ORT- T for telephone set. Thus, an IFT provided conventionally at each different kind of terminal is reduced to only one IFT for this whole system.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a method for accommodating different types of terminals, more specifically, a method for accommodating different types of terminals (= related.

Prior Art and Problems Existing telephone exchanges that accommodate telephone terminals also accommodate terminals that send selection signals in a different format than telephone terminals, such as telex terminals, and between terminals of the same type, b exchange = I The system shown in Fig. 1 is known as a system for accommodating different types of terminals.

Figure 1 (= where T is a telephone terminal, TX+, TXt
is a telex terminal, E is a circuit-switched telephone exchange, NW is a communication path network device, cp is a control device, 0RT-T
, 0RT-X is a selection signal processing trunk configured as a telephone originating register trunk and a telex originating register trunk, respectively, IFT and IFX are interface circuits for telephone signals and telex signals, respectively, and B is a common It's a pass.

In FIG. 1, only telephone terminals are accommodated, and while it is used as a telephone exchange, telex 6+1r: Not Tx4. Tx2 is not accommodated, and the telex transmission register/trunk 0RT-X and the telex signal interface circuit IFX are not provided.

To accommodate a telex terminal, which is a different type of terminal having a selection signal format different from that of a telephone terminal, in an existing telephone exchange, and to enable exchange between terminals of the same type. In this case, following the conventional technique, the first
As shown in the figure (2. New heterogeneous terminal, Telex terminal T
A telex originating register trunk 0RT-,X and a telex signal interface circuit IFX are provided, which accommodates the signals X + and TX 2, and receives No. 48 from a different type of terminal.

In Fig. 1, when a call is made from a telephone terminal T, the control device f'l CP recognizes the call, controls the communication path network device NW, sets the route ■, and makes a call. Connect terminal T and outgoing register trunk 0RT-T. The selection signal of the other party sent from the telephone terminal T is received by the telephone calling register trunk 0RT-T, and further transferred from the telephone interface circuit IFT to the control device CP via a path B. The control device CP selects and connects to the other party based on the selection information in "Transferred". The interface circuit IFT comprises, as is known, a scanning circuit for a number of outgoing register trunks 0RT-T and a signal receiving device for transmitting information from the scanning circuit to the control device CP.

If a call is made from a telex terminal TX, the same as above,
The control device cp detects this and sets the route ■ in the communication path network device NW, and the telex terminal TX! Connect to the telex outgoing register trunk 0RT-X.

At the telex terminal TX, the user presses the numeric keys to send the selection information of the other party. The signal format of this selection information is, for example, a start-stop numeric character code, which is different from a DC dial signal or a PB dial signal sent from a telephone.

This other party's selection information is this outgoing register trunk 0.
Telex interface circuit IFX from RT-X
Then, it is converted into an output similar to that of the ``Telephone interface circuit pT'', is interfaced, and is transferred to the control device CP.Based on this, the control device CP sets routes ■ and ■, and transmits the calling telex. Connect the terminal I'''XI and the other party's telex terminal TX2 via the intra-office trunk IOT.
The selection signal from the telex terminal TX received by RT-X is different in format from the selection signal from the telephone terminal, so
It is not possible to transfer data to the control device CP via the above-mentioned telex interface circuit IFT, and a separate telex signal interface circuit IFX capable of interfacing with telex signals is required.

The conventional method of accommodating different kinds of terminals as shown in FIG. Because the number of telex terminals was small compared to telephone terminals, it was not an efficient method.

OBJECT OF THE INVENTION The present invention accommodates different types of terminals, such as telex terminals, which send out selection signals in a different format than those of telephone terminals, into an existing telephone exchange that accommodates telephone terminals, and allows communication between terminals of the same type. The purpose of the present invention is to provide an efficient system for accommodating different types of terminals that requires few changes to exchanges and eliminates the inefficient drawbacks of the conventional technology.

Embodiment of the Invention FIG. 2 is a block diagram showing a connecting ornament of an embodiment of the invention.

In the figure, T is a telephone terminal, 'rx, TX2 is a telex terminal, E is a telephone exchange, NW is its communication path network device, cp is a control device, 0RT-T and 0RT-
X is for telephone and telex calls (N v
The selected signal processing trunk is configured as a D star trunk, B is the common bus, and IFT is the telephone interface circuit.

In FIG. 2, 'only a telephone terminal is accommodated, and a different type of terminal such as a telex terminal is not accommodated, and while it is used as a telephone exchange, it is of course a telex terminal TX.

TX2 is not accommodated, telex transmission register 0RT
-X does not exist. When a different type of terminal such as a telex terminal is not accommodated, if a call is made from the telephone terminal TT'2, the control device CP detects this and sets a route ■ in the communication path network device NW. , connects the telephone terminal T and the telephone calling register/trunk 0RT-T. Telephone terminal T sends selection information of the other party by dialing in the form of a DC dial signal (I/1 is a PB dial signal) to the calling register trunk 0RT-T.

The selection information of the other party received at the transmission register/trunk 0RT=T is sent to the telephone interface circuit IFT (same as shown in FIG. It is transferred to the control device CP.

As is well known, the second controller CP controls the other party selection information (the two-channel network device NW) to connect the telephone terminal T that made the call and the other party's terminal.

In addition, if a call is made from the telex terminal TX, the control device CP detects it in the same way as above, controls the communication path network device NW to set the route ■, and connects the calling telex terminal TX1 to the telex calling register/trunk. Connect 0RT-X 1m. The telex transmission trunk 0RT-X
When the preparation for receiving the selection signal is completed, the telex terminal T
A selection signal sending instruction signal is sent to X. When the telex terminal TX's receives this signal, it sends a selection signal to the other party's telex terminal, for example TX2. However, in the case of a telex terminal, unlike dialing from the telephone terminal (-), you must press the necessary number keys on the keyboard.The signal format of this selected numeric information is as follows.
For example, the transmission register trunk 0RT-X for start-stop numeric character coachrex is a device that receives the numeric character code signal sent from the telex terminal TX, A selection information storage device that sequentially stores numerical information; It operates as a reception processing trunk for selection signals.

Now, when the control device cp detects that the reception of the selection signal has been completed in the telex transmission register/trunk 0RT-X, the control device cp switches the communication path network device NW to the open side 1.
Then, the route (2) is opened, and the route (2) is set to connect the telex transmission register/trunk 0RT-X to the vacant telephone transmission register/trunk 0RT-Tl.

In this way, the telex originating register trunk 0RT-X is connected to the telephone originating register trunk 0RT-Tt-I' via the path (3) of the communication network device NW. Telex transmission register trunk 0RT-Xi
2, sequentially reads the selection information (numeric information) stored in the selection information storage device of the trunk 0RT-X;
The signal sending device converts it into a signal in the same format as the DC or PB dial signal sent out from the telephone terminal, and sends it to the telephone calling register trunk 0RT via path ■.
- Send to T.

Since the telephone calling register trunk 0RT-T receives selection information in the same signal format as the signal format sent from the telephone terminal, it receives the selection signal in the same way as the selection signal from the telephone terminal, and also receives it in the same way as the selection signal from the telephone terminal. The information is sent to the control device CP (1) via the telephone interface circuit IFT.

Based on the transferred selection information, the control device CP controls the communication network device NW to set the route ■■, and sends the originating telex terminal TXI to the communication path network device NW's route ■/intra-office trunk IOT, as well as the call route. The other party's telex terminal TX21 is connected via route (3) of the network device NW. A response signal is sent from the other party's telex terminal TX2, and when the originating telex terminal TX confirms this response signal via the connection path, it starts sending cans.

Note that the above-mentioned intra-office trunk IOT i- monitors the status of both telex terminals 'rx, , TX2, and when recovery of both terminals is detected, the above-mentioned connection is released.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope thereof.

Effects of the Invention Since the present invention is configured as described above, an existing telephone exchange (-1) which accommodates only telephone terminals is different from a telephone terminal in that it is different from a different type of terminal having a different signal format, particularly a selection signal format, e.g. Accommodates telex terminals and exchanges between similar terminals.
This has the effect of efficiently performing possible multiple exchange tickets. For example, a telephone exchange that accommodates only telephone terminals (if two different types of terminals are accommodated and performs a combined exchange requires fewer changes or modifications to the exchange; is not necessary.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing connections in a conventional technology for accommodating different types of terminals, and FIG. 2 is a block diagram showing connections in an embodiment of the present invention. T...'Telephone terminal, TX+, TX2...Telex terminal, E...Peep talking switch, NW...Call network device, cp...Control device, 0RT-T...Telephone call Register trunk, 0RT-X...Telex transmission register/trunk, IFT...Telephone signal interface circuit, IFX-°°Text communication signal interface circuit B...Common bus patent applicant Fujitsu Representative Patent Attorney Co., Ltd. Tamamushi Gobe (6 others)

Claims (1)

[Claims] Dlfi! terminal type (= switch accommodating different types of terminals that respectively send selection signals of different formats)
The control device of the exchange is equipped with a trunk for processing selection signals in formats corresponding to I-specific types, and receives transfer of selection signals via an interface circuit from the trunk for processing selection signals in formats sent from one specific type of terminal. , the processing trunk for the selection signal in a format sent from a terminal of a type other than the above-mentioned specific type, after receiving and storing the selection signal, processes the selection signal of the above-mentioned specific type via the communication path network device of the above-mentioned exchange. A heterogeneous terminal accommodating method characterized by being connected to a No. 417 processing trunk for terminals.