JPS6162292A - Selection signal reception system of line concentration channel device - Google Patents

Abstract

PURPOSE:To use a subscriber terminal having the different type of selecting signal transmitting circuit with the aid of one subscriber line at a subscriber's home by connecting simultaneously the subscriber's call to plural selecting signal receiving circuits to which the subscriber is registered through a line concentration channel. CONSTITUTION:A sound signal and loop signal from a subscriber are converted into digital signals by a subscriber circuits SLIC, connected to a line connection channel switch LCSW through an input line li (i=0-n), and then time-slot converted simultaneously into a digitized sound signal and loop signal at the line concentration channel switch LCSW. When the subscriber is connected to a dial pulse receiver DPR and PB signal receiver PBR by means of the above-mentioned switch after the call of the subscriber, who is connected to a specified subscriber line L0 is detected, the selecting signal can be received both by a dial-type telephone set DPT and a key telephone system PBT, the terminals of which are used by the subscriber at that time.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a selection signal reception method for a concentrator channel device [Prior Art] Conventionally, selection signal reception in a subscriber line exchange has been performed by sending a message to a subscriber terminal. A system was adopted in which a single selection signal receiving circuit selected according to the subscriber class was connected through a concentrator communication path to receive the selection signal.

[Problems to be solved]

However, in the conventional system, it was not possible for the subscriber side to connect and use terminals having different types of selection signal transmitting circuits to one subscriber line.

Therefore, when a VC wants to use a terminal with different selection signal transmission circuits at a subscriber's home, it is necessary to connect multiple subscriber lines to the subscriber's home, which poses the problem of complicated and troublesome wiring. there were.

[Means for solving problems]

The present invention solves the above-mentioned problems, and provides a concentrator line device for a time-separated switching system in which a subscriber line is connected to the input terminal side and a selection signal receiving circuit is connected to the output terminal side. A time-division channel switch that can connect one input line to multiple output lines is used to connect multiple subscriber terminals with different types of selection signal transmission circuits, and the output terminal of the concentrating channel is connected to After connecting the selection signal receiving circuit corresponding to the terminal type and detecting the subscriber's call,
The present invention is characterized in that the calling subscriber is connected to a plurality of the selection signal receiving circuits at the same time, and the selection signal receiving circuits corresponding to the number of VCa are simultaneously operated.

That is, the present invention allows subscribers to connect multiple terminals having selective signal transmitting circuits to one subscriber line using a time-division channel switch that can simultaneously connect multiple output lines from one input line. When using the system, the terminal type is registered in advance, and when the subscriber makes a call, it connects simultaneously to multiple selection signal receiving circuits registered by the subscriber through the concentrator communication path to receive the selected digits. By adopting this method, subscriber terminals having different types of selection signal transmission circuits can be used on one subscriber line at the subscriber's home. That is, the wiring is simplified so that a selection signal can be received no matter what type of terminal is used to make a call from the subscriber's home.

〔Example〕

Next, an example thereof will be explained with reference to FIG.

FIG. 1 is a block diagram of a circuit illustrating an embodiment of a selection signal receiving system for a concentrator communication path device according to the present invention.

In the figure, DPT and PBT are generally known rotary telephones and push-button telephones, respectively, and their selection signals are sent from the direct current of the subscriber line.
and two-frequency mixed signal 0 transmission.

It is. This end with different selection signal transmission circuit
The end of Jji is connected to the input line side of the concentrator switch LCSW of the subscriber line exchange via the subscriber line Li (iwo to n) and the subscriber circuit 5LICi (i=0 to n). The DPR is a dial pulse receiver and receives a dial pulse, which is a selection signal sent from the dial telephone DPT. P B Rd button signal (hereinafter P
The receiver receives the two-layer wave combination, which is the selection signal sent by the button telephone PBT.

Dial pulse receiver DPR and PB signal receiver PBR
are selection signal receiving circuits connected to the glandular channel switch LC3WIC via output lines tl and tz, respectively. The line concentration switch LC8W is a line concentration switch that can simultaneously connect one input line to a plurality of output lines, and in this example is a time division switch.

Audio signals and loop signals from the subscriber are sent to the subscriber circuit 5L.
It is converted into a digital signal by the IC, and the input line ti(i
=O-n) through the concentrator channel switch LC3WI
The C-connected, digitized voice signal and loop signal are simultaneously time-slot converted in the concentrator channel switch LC8W. An example of a switch that can be connected to multiple output lines from one input line at the same time in the present invention is a so-called sequential write/random read time-sharing switch.
Since this is described in the sequential write/random escape time switch circuit referred to in Memory Switch Circuit No. 55-26951, the details will be omitted. In the above example, one input 1fIi is connected to a plurality of output lines by writing the same data to a specific address in the control memory II which provides the address for random reading. Now, after detecting a call from a subscriber connected to a predetermined subscriber PALO, if the subscriber is connected to the dial pulse receiver DPR and the PB signal receiver PBH using, for example, the switch according to the above example, then The selection signal can be received whether the terminal used by the subscriber at the time is a rotary telephone DPT or a button telephone PBT. In addition, subscribers are divided into classes when connecting selective signal receivers;
By connecting only subscribers, dial telephones DPT and pushbutton telephones PBT, or both, the number of installed signal receivers can be effectively utilized. Furthermore, although there are two types of Fi terminals in this example, the same thing can be said when the number of types increases.

〔Effect of the invention〕

As explained above, the present invention utilizes a time-division channel switch that can connect one input line to a plurality of output lines at the same time, making it easy for subscribers to select a plurality of terminals having signal transmission circuits into one subscriber. When used by connecting to a line, the terminal type is registered in advance, and when the subscriber makes a call, it is simultaneously connected to multiple weekly signal receiving circuits recorded by the subscriber through the termination channel. Since the system uses a system in which the selection numbers are received by the user, a subscriber terminal having a type selection signal transmission circuit can be used in one subscriber line in a person's home. That is, there is an effect that the selection signal can be received no matter what type of terminal is used to make a call from the subscriber's home, and the wiring can be made into a cylinder.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a circuit illustrating an embodiment of a selection signal receiving system for a concentrator communication path device according to the present invention. DPT ・・・Dial telephone

Claims (1)

[Claims] In a concentrator communication path device of a time-division exchange in which a subscriber line is connected to the input terminal side and a selection signal receiving circuit is connected to the output terminal side, one input line can be connected to multiple output lines as a concentrator communication path. A plurality of subscriber terminals having different types of selection signal transmission circuits are connected using a time division communication path switch, and a selection signal reception circuit corresponding to the type of subscriber terminal is connected to the output terminal of the concentrating communication path, A selection signal in a concentrator communication path device, characterized in that after detecting a call from a subscriber, the calling subscriber is connected to a plurality of the selection signal receiving circuits at the same time and the plurality of selection signal receiving circuits are operated simultaneously. Reception method.