JPS59211396A - Digital trunk - Google Patents

Digital trunk

Info

Publication number
JPS59211396A
JPS59211396A JP8617183A JP8617183A JPS59211396A JP S59211396 A JPS59211396 A JP S59211396A JP 8617183 A JP8617183 A JP 8617183A JP 8617183 A JP8617183 A JP 8617183A JP S59211396 A JPS59211396 A JP S59211396A
Authority
JP
Japan
Prior art keywords
trunk
operating state
state
signal
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8617183A
Other languages
Japanese (ja)
Inventor
Ikuo Kitazawa
北澤 郁夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8617183A priority Critical patent/JPS59211396A/en
Publication of JPS59211396A publication Critical patent/JPS59211396A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/561Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing

Abstract

PURPOSE:To decrease the processing amount of software and to reduce a trunk initial setting time without lowering talking service by transferring the operating state of each trunk to a state decided corresponding to each operating state of the trunk in advance by means of the hardware itself at the initial setting of each trunk. CONSTITUTION:Lines 100-103 accommodated in a switch 100 converting the lines is accommodated in a conference talking trunk 200 and connected to an adder circuit 201 adding signals of the other two except the signal of itself and a selecting circuit 202. One kind of signal selected by the selecting circuit 202 is connected to the switch 100 through lines 101-b-103-b. The operating state of the trunk depends which signal is selected by the selecting circuit 202, the three party conference state corresponds to the signal selection of the adder circuit 201, and an idle state corresponds to select a signal of a non-talking signal generating circuit 203. In transferrring the operating state of each trunk to other state, the content of an operating state storage memory 204 is rewritten.

Description

【発明の詳細な説明】 本発明は、ディジタルトランク、特にディジタル処理形
式の多端子、多機能をもったトランクに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to digital trunks, particularly multi-terminal, multi-functional trunks of the digital processing type.

従来のアナログ形式のトランク制御はトランク個々に1
個又は複数個の制御ポイントを持ち、該制御ポイントを
駆動し、該駆動ポイントの組合せでトランクの動作状態
を決定していた。又多端子を収容するトランクに於いて
は、各端子毎に前記制御ポイントを持ち、各端子毎の空
、塞シに応じて、他゛端子の加入者に対する側音、雑音
防止の意味から、回線に対する整合インピーダンス制御
等複雑な制御が必要であった。
Conventional analog trunk control requires one control for each trunk.
The system has one or more control points, drives the control points, and determines the operating state of the trunk by a combination of the drive points. In addition, in a trunk accommodating multiple terminals, each terminal has the above-mentioned control point, and depending on whether each terminal is empty or occupied, it is possible to control side noise and noise from subscribers of other terminals. Complex controls such as matching impedance control for the line were required.

すなわち、アナログトランクに於いてはトランク個々に
対して個別制御が必要であシ、特に回線の初期状態設定
時に於いては、トランク毎に制御オーダを送出する必要
があp、長い時間を必要としていた。又回線の初期状態
設定時に於いては、全トランクを同一状態(初期状態)
に設定する事は通話中状態にある回線に対しては、通話
断となってしまいサービス低下を招いてしまう。従って
、各トランクの状態に応じて制御オーダーを送出する必
要がある。この状態に応じてトランクを初期状態に設定
制御するのはソフトウェアであり、この点に於いてもソ
フトウェアの処理増となっていた。
In other words, in analog trunks, individual control is required for each trunk, and especially when setting the initial state of the line, it is necessary to send control orders for each trunk, which takes a long time. there was. Also, when setting the initial state of the line, all trunks are set in the same state (initial state).
If you set it to , the call will be disconnected for lines that are in a busy state, resulting in a decline in service. Therefore, it is necessary to send control orders depending on the status of each trunk. It is the software that controls the setting of the trunk to the initial state according to this state, and this also requires an increase in software processing.

一方ディジタル処理形式のトランク制御については、ト
ランクを収容し回線間の交換処理を行なうスイッチから
、回線空状態には、無通話信号を送出させることにより
、アナログトランクに於りる整合インピτダンスによる
終端と同等機能全豹うことができ、ディジタルトランク
ではアナログトランクに比べ回線整合インピーダンス制
御の必要性が低下してきている。又トランクも多重化さ
れ、−装置で数十トランクから百数士トランクの多重度
をもたせる事が可能となっており、このことはトランク
個々の個別回路に比べ、共通回路の比重が大きく々す、
トランク制御に於いても個別制御から共通制御が容易な
構成となってきた。
On the other hand, with regard to trunk control in the digital processing format, the switch that accommodates the trunk and performs switching processing between lines sends out a no-call signal when the line is idle, thereby controlling the matched impedance τ of the analog trunk. Digital trunks can have all the same functions as terminations, and the need for line matching impedance control has been reduced in digital trunks compared to analog trunks. Trunks are also multiplexed, making it possible for a device to have a multiplicity of from several dozen trunks to more than a hundred trunks, which means that the common circuit has a much greater weight than the individual circuits for each trunk. ,
Even in trunk control, the configuration has changed from individual control to common control.

しかし、ディジタルトランクに於いても、装置、の初期
状態設定時に於いて、通話中呼の救済等サービス面を考
慮した場合、トランク個別に制御する必要があシ、アナ
ログトランクと同様長い時間とソフトウェアの処理槽と
いう欠点があった。
However, even with digital trunks, when setting the initial state of the equipment, when considering services such as relief of active calls, it is necessary to control each trunk individually, and as with analog trunks, it takes a long time and software. It had the disadvantage of having a processing tank.

本発明はディジタル処理トランクに於いて、装置の初期
状態設定時に多重化されたトランクに共通の初期設定オ
ーダを送信し、トランク個々の動作状態に応じて、あら
かじめ定められた動作状態へ移行させる事によシ前記欠
点を解決し、通話中呼の切断というサービス低下を生じ
ることのない、又ソフトウェア処理に於いてもトランク
個々の制御を不要とし、処理量を減少し、かつ初期設定
時間を短縮したディジタルト2ンクを提供するものであ
る。
In digital processing trunks, the present invention transmits a common initial setting order to multiplexed trunks when setting the initial state of a device, and causes the trunks to shift to a predetermined operating state according to the operating state of each trunk. This solution solves the above-mentioned drawbacks, eliminates the problem of service deterioration such as disconnection of active calls, and eliminates the need to control individual trunks in software processing, reducing the amount of processing and shortening the initial setup time. This provides a digital 2-link.

本発明によると各トランク対応の動作状態全保持する動
作状態保持メモリと、前記各動作状態l対応にトランク
初期状態設定時に移行すべき動作状態を決定する動作状
態変換メモリと、トランク作移行をさせる手段を含むこ
とを特徴とするディジタルトランクが得られる。
According to the present invention, an operating state holding memory holds all the operating states corresponding to each trunk, an operating state converting memory determines the operating state to be transitioned to when setting the initial trunk state for each operating state, and the operating state converting memory determines the operating state to be transitioned to when setting the trunk initial state. A digital trunk is obtained, characterized in that it includes means.

次に図面を参照して本発明を実施例について説明する。Next, embodiments of the present invention will be described with reference to the drawings.

第1図は本発明の一実施例としてN−1f力a算処理形
式の3@用公会議話トランクのブロック図をi示してい
る。
FIG. 1 shows a block diagram of a conciliar trunk for 3@ in the N-1f arithmetic processing format as an embodiment of the present invention.

各回線間の変換動作を行なうスイッチ100に収容され
た回線101〜103(aが送話%、bが受話路に対応
しディジタルの場合101〜103が異ったハイウェイ
の同一タイムスロット番号又は1本のハイウェイの異っ
たタイムスロット番号に対応する)は会議通話トランク
200に収容され、自分自身の信号を除く他の2者の信
号を加算する加算回路201及び選択回路202に接続
される。選択回路202によって選択へ些たl一種の信
号が回線101−b〜103−bを通してスイッチ10
0に接続される。
Lines 101 to 103 accommodated in the switch 100 that performs the conversion operation between each line (a corresponds to the sending channel, b corresponds to the receiving channel, and in the case of digital, 101 to 103 are the same time slot numbers of different highways or 1 (corresponding to different time slot numbers of the main highway) are accommodated in a conference call trunk 200 and connected to a summing circuit 201 and a selection circuit 202 for adding the signals of the other two parties excluding their own signal. The selection circuit 202 sends a signal to the switch 10 through the lines 101-b to 103-b.
Connected to 0.

選択回路202の信号選択は中央処理装置(図示されて
いない)から制御線104を通して各トランク毎の動作
状態の指令を受け、動作状態保持メモリ204に各トラ
ンク毎の動作状態を保持し、その内容を順次読み出し犬
の指令によってどの信号を選択するかが決まる。即ちト
ランクの動作状態は、選択回路202によシどの信号を
選択するかで決まシ、第1回の場合3者会議中状態とけ
選択回路202によシ加算回路201の信号を選択する
事に対応し、空状態とは選択回路202によシ無通話信
号発生回路j03の信号を選択することに対応する。
The selection circuit 202 selects a signal by receiving commands for the operating state of each trunk from a central processing unit (not shown) through a control line 104, holds the operating state of each trunk in the operating state holding memory 204, and stores its contents. The signals are read out sequentially and the signal to be selected is determined by the dog's command. In other words, the operating state of the trunk is determined by which signal is selected by the selection circuit 202. In the first case, the selection circuit 202 selects the signal from the addition circuit 201, depending on whether the three-party conference is in progress or not. Correspondingly, the empty state corresponds to the selection circuit 202 selecting the signal of the no-call signal generation circuit j03.

従って各トランクの動作状態を他に移行させる場合は、
動作状態保持メモリ204の内容を書き替える必要があ
る。すなわち中央制御装置(図示されていない)から初
期設定オーダを受信した場合、ゲート回路206,20
7は共に動作状態変換メモリ205の信号を出力する様
にゲートすることによシ、トランクの動作状態は動作状
態保持メモリ204の内容を動作状態変換メモリ205
の内容に書き替えながら、各トランクの動作状態を他の
状態に移行させることができる。
Therefore, when transferring the operating state of each trunk to another,
It is necessary to rewrite the contents of the operating state holding memory 204. That is, upon receiving an initialization order from a central controller (not shown), gate circuits 206, 20
7 are both gated to output signals from the operating state conversion memory 205, and the operating state of the trunk is determined by converting the contents of the operating state holding memory 204 to the operating state converting memory 205.
The operating state of each trunk can be transitioned to another state while rewriting the contents of the trunk.

この時動作状態変換メモリ205の内容は、予めトラン
クの各動作状態対応に、初期設定時どの様な状態に移行
すべきかの指令が書き込まれているため、トランク各々
に対するソフトウェアからの指示なくしてハードウェア
自身で多重化されたトランク内側々の回路を希望する状
態に初期設定する事ができる。
At this time, the contents of the operating state conversion memory 205 are written in advance in accordance with each operating state of the trunk, with instructions indicating what state to transition to at the time of initial setting. The software itself can initialize the circuits inside the multiplexed trunk to the desired state.

本発明は、以上説明したように、ディジタルトランクに
おいてトランクの初期設定時、ハードウェア自身であら
かじめトランクの各動作状態対応に定められた状態に移
行させることにより、通話サービスの低下なくソフトウ
ェアの処理量の減少及びトランク初期設定時間の短縮を
することができる。
As explained above, the present invention enables the hardware to shift to a predetermined state corresponding to each operating state of the trunk during the initial configuration of the trunk in a digital trunk, thereby reducing the throughput of software without deteriorating call service. and trunk initialization time.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例のブロック図である。 100・・・・・・回線間の通話路を設定するディジタ
ルスイッチ、101−a〜103−a・・・・・・1回
線の送話路(送話タイムスロット)、101−b〜10
3−b・・・・・・1回線の受話路(受話タイムスロッ
ト)、104・・・・・・トランク制御線、200・・
・・・・ディジタル会議通話トランク、201・・・・
・・加算回路、202・・・・・・選択回路、203・
・・・・・無通話信号発生回路、204・・・・・・動
作状態保持メモリ、205・・・・・・動作状態変換メ
モリ、206・・・・・・ゲート回路1、/″−S
FIG. 1 is a block diagram of one embodiment of the present invention. 100...Digital switches for setting communication paths between lines, 101-a to 103-a...Speech paths (transmission time slots) for one line, 101-b to 10
3-b... 1 line receiving line (call receiving time slot), 104... Trunk control line, 200...
...Digital conference call trunk, 201...
... Addition circuit, 202 ... Selection circuit, 203.
...No call signal generation circuit, 204...Operating state holding memory, 205...Operating state conversion memory, 206...Gate circuit 1, /''-S

Claims (1)

【特許請求の範囲】[Claims] 各トランク対応の動作状態を保持する動作状態保持メモ
リと、前記谷動作状態対応にトランク初期状態設定時に
移行すべき≠令動咋状態を決定する動作状態変換メモリ
と、トランクの初期状態膜る手段を含むことを特徴とす
るディジタルトランク。
an operating state holding memory for holding the operating state corresponding to each trunk; an operating state conversion memory for determining the ≠ command state to which the trunk should be transitioned when setting the trunk initial state corresponding to the valley operating state; and means for changing the initial state of the trunk. A digital trunk comprising:
JP8617183A 1983-05-17 1983-05-17 Digital trunk Pending JPS59211396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8617183A JPS59211396A (en) 1983-05-17 1983-05-17 Digital trunk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8617183A JPS59211396A (en) 1983-05-17 1983-05-17 Digital trunk

Publications (1)

Publication Number Publication Date
JPS59211396A true JPS59211396A (en) 1984-11-30

Family

ID=13879305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8617183A Pending JPS59211396A (en) 1983-05-17 1983-05-17 Digital trunk

Country Status (1)

Country Link
JP (1) JPS59211396A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175696A (en) * 1984-09-21 1986-04-18 Oki Electric Ind Co Ltd Operator's trunk circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175696A (en) * 1984-09-21 1986-04-18 Oki Electric Ind Co Ltd Operator's trunk circuit
JPH0326959B2 (en) * 1984-09-21 1991-04-12 Oki Denki Kogyo Kk

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