JPH0346887A - Interface connection system of key telephone system - Google Patents

Abstract

PURPOSE:To standardize an extension interface unit to a four-wire system by connecting couples of connection terminals for a subscriber interface circuit and a data transmitting and receiving circuit to a four-wire type telephone set and connecting two couples of connection terminals of two subscriber interface circuits and a couple of connection terminals of the data transmitting and receiving circuit to a six-wire type telephone set. CONSTITUTION:Two subscriber interface circuits SLIC, two data transmitting and receiving circuits DTR, and a CPU which control them are mounted on an extension interface unit STU-A1 and the subscriber interface circuits SLIC and data transmitting and receiving circuit DTR are provided with couples (two wires) of connection terminals T01 and T02. Further, an extension interface unit STU-A2 is of the same constitution with the extension interface unit STU-A1 and the six-wire type telephone set 6-WTEL1 is connected to the output terminals T01, T02, and T03 by six lines of A-PAIR, B-PAIR, and C-PAIR (A- PAIR). In this case, one data transmitting and receiving circuit DTR is free.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an interface connection system for button telephone equipment (prior art). It offers improved convenience and is widely used in relatively small businesses. Nowadays, due to the demands of the information age, the functions of telephones have diversified, and in addition to voice, telephones can now process data transmission and reception. For this reason, a 4A type, 6-wire type connection system has been adopted for the interface between the main device of the button telephone device and the telephone set.

For example, Fig. 2(a) shows a connection diagram of a 4-wire system and Fig. 2(b) shows a connection diagram of a 6-wire system.
In the wire system, the telephone [A-PAIR (2 wire) for communication connected to the 14-W meter, B-P for the data transmission system
AIR (2 line) extension interface unit 5TU-
In addition, in the 6-wire system shown in Figure 2 (b), in addition to the A-PAIR for communication and the B-PAIR for data transmission, as with the 4-wire system, there is also a C-PAIR. An extension interface unit 5TU-6A was required to realize a public address announcement function from a third party during a call, which could not be provided with a four-wire system.

(Question B to be solved by the invention) Traditionally, users of telephone devices have been able to
There is a desire to freely choose between a standard telephone or a 6-wire telephone.

However, the main devices of the 4-wire system and 6-wire system are different devices, and each STU
card, software, and a 4-wire system cannot be mixed with a 6-wire phone, and even though a 6-wire system can be mixed with a 4-wire phone, C-PAIR is an empty line. This is uneconomical.

Furthermore, it is uneconomical to mix 4-wire telephones in a 6-wire system since there are generally fewer 6vA telephones than 4-wire telephones.

Furthermore, it is necessary to stock two types of interface units, making inventory management complicated and uneconomical.

An object of the present invention is to provide an ink face connection method that solves these problems.

Means for Solving CRN) In order to achieve the above object, the present invention provides a button telephone device equipped with a telephone controlled by a main device, which has a pair of connection terminals connected to the telephone in the main device. Equipped with a subscriber line interface circuit and a data transmission/reception circuit having a pair of connection terminals, the 4I! A 6-wire telephone has two pairs of connecting terminals for the subscriber line interface circuit and a data transmitting/receiving circuit, and a six-wire telephone has two pairs of connecting terminals for the subscriber line interface circuit and the data transmitting/receiving circuit. The gist of this invention is an interface connection method for a button telephone device, which is characterized by connecting a pair of connection terminals.

(Function) By adopting the above connection method, the present invention implements only the 4-wire interface unit in the main device, so that the 6-wire telephone has the A of the interface unit.
-Connect using two circuits for PA and IR and one circuit for B-PAIR.

(Example) Embodiments of the present invention will be described below along with the drawings.

It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements may be made without departing from the spirit of the present invention.

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 0, block I shows a 4-wire telephone system and block H shows a 6-wire telephone system. Each is implemented in multiple blocks.

In block I, extension interface unit 5T
The U-AI has two subscriber line interface circuits 5LI.
C. Two data transmitting/receiving circuits DTR and a 5ubCPU that control them are installed, and the subscriber line interface circuit 5LIC and data transmitting/receiving circuit DTP each have one pair (2vA) of connection terminals T□, T. is provided. Further, T is a communication path for connecting to other telephones, outside lines, etc. Furthermore, these extension interface units 5TU-Al have connection terminals Tel.

Tox has a 4-wire telephone 4-W station I A-PAIRB-
Connected by 4 wires of PAIR, connecting terminal T617O4
4-wire telephone 4-W position 2 is A-PAIR, B-PA
Connected by IR (7) 4 wires. These extension interface units 5TU-Al and 4-wire telephone 4114
A plurality of -W positions I and 4-W positions 2 are provided.

Further, the extension interface unit 5TU-A2 has the same configuration as the extension interface unit 5TU-At, and has output terminals T61. To! and a 6-wire telephone on TO3 [6-W location l; 6<A-PAI R.

B-PAIR and C-PAIR (A-PAIR) are connected by 6 wires. In this case, one data transmitting/receiving circuit DTR is empty. Furthermore, similar to the four-wire telephone system, a plurality of blocks (3) are implemented in the main device.

(Effects of the Invention) As explained above, according to the present invention, in a button telephone device equipped with a telephone controlled by a main device, a subscriber line having a pair of connection terminals connected to the telephone in the main device A 4-wire telephone is equipped with a data transmission/reception circuit having an interface circuit and a pair of connection terminals, and a 4-wire telephone is connected to a subscriber line interface circuit and a pair of connection terminals of the data transmission/reception circuit, and a 6-wire telephone is connected to a 2-wire telephone. By connecting the two pairs of connection terminals of the subscriber line interface circuit and the pair of connection terminals of the data transmitting/receiving circuit, the extension line interface unit can be unified to a four-wire system, and the back wiring can be unified to improve work efficiency. In addition, inventory parts management can be made easier and more economical.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 5TU-AI, 5TU-A2... Extension interface unit, subscriber line interface circuit, data transmission/reception circuit, central processing unit, telephone system, data transmission system, telephone system (sound reinforcement) SLIC・ ・ ・ DTR ・ ・・ CPU ・ ・ ・ ・ A-PAIR・ B-PAIR・ C-PAIR・ Figure 1 (α)

Claims (1)

[Claims] A button telephone device equipped with a telephone controlled by a main device, comprising a subscriber line interface circuit having a pair of connection terminals connected to the telephone and a data transmitting/receiving circuit having a pair of connection terminals in the main device, A 4-wire telephone is connected to a pair of connection terminals for a subscriber line interface circuit and a data transmission/reception circuit, and a 6-wire telephone is connected to two pairs of connection terminals for two subscriber line interface circuits and a data transmission/reception circuit. An interface connection method for a button telephone device characterized by connecting a pair of connection terminals of a circuit.