JPH01260962A - Isdn terminal equipment - Google Patents

Abstract

PURPOSE:To improve the operability and portability of a terminal equipment by providing an S point adaptor section connected to an information outlet of a point S in wire and a remote section connected to an S point adaptor section in a radio wave. CONSTITUTION:An S point adaptor section 21 uses a radio signal subject to frequency division to send a signal of an information receptacle 5 to the surrounding. A signal transmission-reception section 22 receives the radio signal, a modulator-demodulator section 23 demodulates a reception signal to supply the result to an S interface signal processing section 24. Moreover, an input voice signal from a telephone handset 3 is converted into a signal of the S point standard interface by the S interface signal processing section 24, sent from the signal transmission reception section 22, received by the S point adaptor section 21 and outputted to the information outlet 5. Thus, it is not required to apply direct contact to the information outlet in a wire and the operability and the portability are much improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is applied to an integrated service digital communication network (referred to as rISDNJ in this specification). In particular, it relates to an ISDN terminal device connected to eight points of the ISDN user/network interface.

Here, the 8 points refer to interface points that accommodate terminals that comply with CCITT's ■interface recommendation.

〔overview〕

The present invention improves the operability and portability of an ISDN terminal device connected to eight user/network interface points by wirelessly connecting the eight information outlets and the terminal device body. It is.

[Conventional technology]

FIG. 2 is a block diagram showing the standard configuration of an ISDN user/network interface. This configuration is specified in CCITT Recommendation 1.411.

The first network termination NTI terminates the subscriber transmission path and the layer 1 of the user-network interface. The second network termination NT2 has layer 1 functionality and layer 2 and 3 functionality.
Terminate all or part of the functions of. Layer 1.2.
3 is defined by Recommendations 1.430 to 1.451. The first type of end device is a terminal that complies with the ■Interface Recommendation, such as a digital telephone, a data terminal or a composite terminal. Second type of terminal TE
2 is a terminal that does not comply with ■interface recommendations. The terminal adapter TA is for connecting an existing terminal (the second type of terminal TE2) to the standard ■ interface, and mutually converts layers 1.2.3.

In this configuration, the connection point between the first network termination NTI and the second network termination NT2 is T point, the connection point between the second network termination NT2 and the first type terminal TEI or terminal adapter TA is 8 points, The connection point between the terminal adapter TA and the second type terminal TE2 is defined as a point R.

Information outlets are used to connect the first type of terminal TEI and terminal adapter TA to eight points. That is, eight information outlets are provided from the second network termination by in-house wiring, and the first type of end device or terminal adapter TA is connected to these information outlets.

[Problem that the invention seeks to solve]

However, when the first type of end device or terminal adapter TA is connected by wire, due to the electrical characteristics of the connection wire, it can only be separated from the information connector by a maximum of about 10 meters.
It had the disadvantage of poor operability and portability.

The present invention aims to solve this problem and provide an ISDN terminal device with excellent operability and portability.

[Means for solving problems]

The ISDN terminal device of the present invention is characterized by comprising an S-point adapter section that is wired to eight information outlets, and a remote section that is wirelessly connected to the S-point adapter section.

[For production]

The ISDN terminal device of the present invention connects eight information outlets and the terminal device body wirelessly. Therefore, the operability and portability of the terminal device can be improved.

〔Example〕

FIG. 1 shows an ISDN terminal using an ISDN terminal device according to an embodiment of the present invention.
It is a block configuration diagram of DN in-home wiring.

Here, the case of basic access will be explained as an example. For basic access, ccITT Recommendation 1
．． 412.

A normal ISDN terminal device 1 is directly connected to an information outlet 5 by wire. On the other hand, although a part of the ISDN terminal device 2 according to the embodiment of the present invention is connected to the information outlet 5 by wire, its main body can be moved to any location around the information outlet 5. That is, the S point adapter section 21 includes an S point adapter section 21 that is wired to an information outlet, and a remote section that is wirelessly connected to the S point adapter section 21, and the main body of the apparatus is disposed in this remote section.

The information outlet 5 has in-house wiring 6, network termination 7, signal line 8,
It is connected to an ISDN exchange 10 via a digital subscriber circuit 9. Information outlet 5 and in-house wiring 6 are IS
8 points of the DN user-network interface are provided, and signal line 8 provides the U point in the basic access ISDN user-network interface. The network termination 7 performs the functions of both the network terminations NT1 and NT2 described above.

The remote section of the ISDN terminal device 2 includes a signal transmitting/receiving section 22,
A modulation/demodulation section 23, an S interface signal processing section 24,
It includes a D channel signal processing section 25, a switch 26, a telephone network 27, a display section 28, a telephone key 29, and a control section 30. A telephone handset 3 is connected to the telephone network 27 .

The S-point adapter unit 21 transmits the signal from the information outlet 5 to the surrounding area using a frequency-divided wireless signal. The signal transmitter/receiver 22 receives this radio signal, and the modulator/demodulator 23 demodulates the received signal and supplies it to the S interface signal processor 24 . The S interface signal processing section 24 separates this demodulated signal into a B channel signal and a D channel signal. The D channel signal processing section 25 processes the separated D channel signal.

The control unit 30 supplies the B channel signal to the telephone handset 3 via the switch 26 and the telephone network 27 based on the processing result of the D channel signal.

Further, the D channel signal is displayed on the display section 28.

Further, the human voice signal from the telephone handset 3 is transferred to the S interface signal processing section 24 via the telephone network 27 and the switch 26.

The S interface signal processing unit 24 inputs the electric key 2 to this signal.
A D channel signal based on the input signal from 9 is added thereto, converted into an 8-point standard interface signal, and supplied to the modulation/demodulation section 23 . The modulator/demodulator 23 modulates this signal, and the signal transmitter/receiver 22 transmits the modulated signal. S point adapter section 2
1 receives this wireless signal and outputs it to the information outlet 5.

In the above embodiment, the S point adapter section 21 and the signal transmitting/receiving section 2
Although the configuration is such that signals are transmitted and received using channels divided by frequency, the present invention can be similarly implemented using channels divided by time division or spread spectrum.

〔Effect of the invention〕

As described above, the ISDN terminal device of the present invention does not need to be directly connected to an information outlet by wire, and has the effect of greatly improving operability and portability.

[Brief explanation of the drawing]

FIG. 1 shows an ISDN terminal using an ISDN terminal device according to an embodiment of the present invention.
Block configuration diagram of DN in-house wiring. FIG. 2 is a block diagram showing the standard configuration of an ISDN user/network interface. 1.2...ISDN terminal device, 3...telephone handset, 5...information outlet, 6...house wiring, 7
...Network terminal, ...Signal line, 9.Digital subscriber circuit, 21.S point adapter section, 22.Signal transmission/reception section, 23.Modulation/demodulation section, 24.S Interface signal processing unit, 25...D channel signal processing unit, 2
6...Switch, 27...Telephone network, 2
8...Display unit, 29...Electronic key, 30...Control unit.

Claims (1)

[Claims] 1. IS connected to point S of user/network interface
In the DN terminal device, an S point adapter part (21) is connected by wire to the S point information outlet, and a remote part (22 to 3) is connected wirelessly to this S point adapter part.
0). An ISDN terminal device comprising: