JPH02154596A - Trunk line all busy information system for concentrator - Google Patents

Trunk line all busy information system for concentrator

Info

Publication number
JPH02154596A
JPH02154596A JP30913988A JP30913988A JPH02154596A JP H02154596 A JPH02154596 A JP H02154596A JP 30913988 A JP30913988 A JP 30913988A JP 30913988 A JP30913988 A JP 30913988A JP H02154596 A JPH02154596 A JP H02154596A
Authority
JP
Japan
Prior art keywords
busy
channel
exchange
signal
line
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
JP30913988A
Other languages
Japanese (ja)
Inventor
Takashi Nagato
多佳司 永戸
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP30913988A priority Critical patent/JPH02154596A/en
Publication of JPH02154596A publication Critical patent/JPH02154596A/en
Pending legal-status Critical Current

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  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To prevent the lowering of using rate of an exchange for another circuit by detecting as 'trunk line all busy' when the signal of m-th channel is received and outputting a calling signal to (n-m) pieces of remaining channel interface parts. CONSTITUTION:The output of channel interface parts (330-1)(330-n) is inputted through an all-busy detection circuit 320, a detection is executed as 'trunk line all busy' when the signal of m-th channel is received, and the calling signal is outputted to (n-m) pieces of the remaining channel interface parts. In relation to (n-m) pieces of channel quantity which results in call loss, (n-m) channel quantity of call loss quantity is forcibly made into an all-busy state by informing an exchange 400 of the calling signal and locking out the calling signal from a subscriber to the exchange 400 thereafter. Consequently, an incoming call is no loger executed since the exchange 400 recognizes as 'all busy' and a line-busy is indicated to an opponent calling person. Thus, the lowering of using rate for the exchange of another line can be prevented.

Description

【発明の詳細な説明】 (1既  要〕 0本の加入者線とm本の加入者線分のディジタル伝送路
との間で中継を行うPCM0集線装置に関し、 他回線に対する交換機の使用率の低下を防ぐことを可能
とする集線装置における中継線全話中通知方式を提供す
ることを目的とし、 nチャネルの加入者線に接続されるn個のチャネルイン
タフェース部と、n個のチャネルインタフェース部の出
力を入力しmチャネル(n>m)のデータを多重化して
出力し、かつnチャネルのデータに共通の処理を行う共
通部とを有し、入力がチャネルインタフェース部から加
入者線を介して交換機に接続され、出力が共通部の出力
のmチャネルの多重化したデータを伝送する伝送路を介
して集線装置に接続される集線装置において、共述部に
、チャネルインタフェース部の出力を順次入力し、mチ
ャネル目の信号を受信した時中継線全話中として検出を
行い、残りの(n−m)個のチャネルインタフェース部
に対して発呼信号を出力する全話中検出回路を設けて構
成する。
[Detailed Description of the Invention] (1 Required) Regarding a PCM0 line concentrator that relays between digital transmission lines for 0 subscriber lines and m subscriber lines, the usage rate of an exchange for other lines is The purpose of this system is to provide a system for notifying all trunk lines in a line concentrator that is busy, which makes it possible to prevent deterioration in trunk lines. It has a common part that inputs the output of the channel interface part, multiplexes and outputs the data of m channels (n>m), and performs common processing on the data of n channels, and inputs the data from the channel interface part via the subscriber line. In a line concentrator whose output is connected to a switch via a transmission line that transmits m-channel multiplexed data of the output of the common section, the output of the channel interface section is sequentially transmitted to the co-presentation section. An all-busy detection circuit is provided which detects that all trunk lines are busy when the m-th channel signal is input, and outputs a calling signal to the remaining (n-m) channel interface units. Configure.

〔産業上の利用分野〕[Industrial application field]

本発明は、9本の加入者線とm木の加入者線分のディジ
タル伝送路との間で中継を行うPCM0集線装置の改良
に関するものである。
The present invention relates to an improvement of a PCM0 line concentrator that relays between nine subscriber lines and digital transmission paths for m subscriber lines.

この際、他回線に対する交換機の使用率の低下を防ぐこ
とを可能とする集線装置におiJる方式が要望されてい
る。
At this time, there is a need for a system that connects to a line concentrator that can prevent a decrease in the usage rate of the exchange for other lines.

〔従来の技術] 第4図は一例の集線装置を有するデータ伝送システムの
構成を示すブロック図である。
[Prior Art] FIG. 4 is a block diagram showing the configuration of a data transmission system having an example of a line concentrator.

第4図において、例えば120チヤネル(以下CI+と
称する)からなる加入者線に接続された加入者のうち、
ある加入者Gから相手側の加入者1に電話をかける時、
まず加入者6は相手先の加入者1の電話番号をダイアル
する。するとダイヤル信号は加入者回線を介して交換機
5に転送され、更に相手先の加入者1につながる交換機
4を介して集線装置3に転送される。
In FIG. 4, for example, among the subscribers connected to a subscriber line consisting of 120 channels (hereinafter referred to as CI+),
When a subscriber G makes a call to the other party subscriber 1,
First, subscriber 6 dials the telephone number of subscriber 1, the other party. Then, the dial signal is transferred to the exchange 5 via the subscriber line, and further transferred to the line concentrator 3 via the exchange 4 connected to the subscriber 1 at the other end.

集線装置3内の多重化装置(以下MUXと称する)3−
1において、他の加入者からのダイヤル信号とともに例
えば3QC11分が多重化され、伝送回線を介して相手
先の加入者につながる集線装置2に転送される。この集
線装置2内の多重化分離装置(以下DMUXと称する)
2−1において多重化した30CI+分のデータが分離
され、希望する相手先の加入者乙こダイヤル信号が転送
される。
Multiplexer (hereinafter referred to as MUX) 3- in the line concentrator 3
At No. 1, for example, 3QC11 minutes are multiplexed with dial signals from other subscribers and transferred to a concentrator 2 connected to the other subscriber via a transmission line. A multiplexing/demultiplexing device (hereinafter referred to as DMUX) within this concentrator 2
In step 2-1, the multiplexed data of 30 CI+ is separated, and the desired subscriber-to-destination dial signal is transferred.

このようにして−・方の加入者から相手側の加入者に対
して電話による通信を行っていた。
In this way, telephone communication was carried out from the subscriber on the one side to the subscriber on the other side.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかしながら上述の集線装置においては、伝送回線は3
0 C11分しかないので30 CH分の中継はできる
が残りの90CI+については呼損となる。この呼損に
なる90チャネル分について交換機からの着呼信号を受
信しても、集線装置では何の処理も行わないために交換
機は発呼者が呼び出し続ければ、そのまま着呼処理を行
ってしまう。
However, in the above-mentioned concentrator, there are three transmission lines.
Since there are only 0C11 minutes, relaying for 30 CHs is possible, but calls will be lost for the remaining 90CI+. Even if an incoming call signal is received from the exchange for these 90 lost channels, the concentrator does not perform any processing, so if the caller continues to call, the exchange will process the incoming call. .

この場合、交換機は着呼を続けているので、当然のこと
ながら他回線への着呼制御の使用率は低下する。これは
共通線信号方式での交換機では、CI当たりの着呼制御
回路の数が限られているためである。
In this case, since the exchange continues to receive calls, the usage rate for controlling incoming calls to other lines naturally decreases. This is because in an exchange using the common channel signaling system, the number of call control circuits per CI is limited.

もし、90CH分の殆どに着呼されると、他回線が使用
できなくなるだけでなく、交換機のシステムダウンを生
じるという問題点があった。
If calls were received on most of the 90 channels, there would be a problem in that not only would other lines become unusable, but the exchange system would go down.

したがって本発明の目的は、他回線に対する交換機の使
用率の低下を防ぐことを可能とする集線装置における中
継線全話中通知方式を提供することにある。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a system for notifying that all trunk lines are busy in a line concentrator, which makes it possible to prevent a decrease in the usage rate of an exchange for other lines.

即ち第1図において、nチャネルの加入者線に接続され
るn個のチャネルインタフェース部3301〜330−
n と、n個のチャネルインタフェース部の出力を入力
しmチャネル(n>m)のデータを多重化して出力し、
かつnチャネルのデータに共通の処理を行う共通部30
5とを有し、入力がチャネルインタフェース部から加入
者線を介して交換機400に接続され、出力が共通部の
出力のmチャネルの多重化したデータを伝送する伝送路
を介して集線装置200に接続される集線装置300に
おいて、320は共通部に設けられ、チャネルインタフ
ェース部の出力を順次入力し、mチャネル目の信号を受
信した時中継線全話中として検出を行い、残りの(n−
m)個のチャネルインタフェース部に対して発呼信号を
出力する全話中検出回路である。
That is, in FIG. 1, n channel interface units 3301 to 330- are connected to n channel subscriber lines.
n and the outputs of n channel interface sections, multiplexes and outputs the data of m channels (n>m),
and a common unit 30 that performs common processing on n-channel data.
5, the input is connected to the exchange 400 from the channel interface section via the subscriber line, and the output is connected to the line concentrator 200 via a transmission line that transmits the multiplexed data of m channels output from the common section. In the line concentrator 300 to be connected, 320 is provided in a common section, and inputs the output of the channel interface section sequentially. When the m-th channel signal is received, it is detected that all the trunk lines are busy, and the remaining (n-
m) is an all-busy detection circuit that outputs a calling signal to the channel interface units.

〔課題を解決するための手段〕[Means to solve the problem]

上記問題点は第1図に示す装置の構成によって解決され
る。
The above problem is solved by the configuration of the device shown in FIG.

〔作 用〕[For production]

第1図において、全話中検出回路320においてチャネ
ルインタフェース部330−1〜330−nの出力を入
力し、mチャネル目の信号を受信した時中編線全話中と
して検出を行う。そして、残りの(nm)個のチャネル
インタフェース部に対して発呼信号を出力する。呼損に
なる(n−m)個のチャネル分について発呼信号を交換
機400に通知してその後の交換機400への加入者か
らの発呼信号をロックアウトすることにより、呼挑分の
(nm)チャネル分を強制的に全話中状態にする。
In FIG. 1, the outputs of the channel interface units 330-1 to 330-n are inputted to the all-busy detection circuit 320, and when the m-th channel signal is received, it is detected that the middle braid is all busy. Then, calling signals are output to the remaining (nm) channel interface units. By notifying the exchange 400 of calling signals for (n-m) channels that will result in call losses and locking out subsequent calling signals from subscribers to the exchange 400, ) Force all channels to be busy.

このため、交換機400は全話中と認識するために着呼
制御は行われなくなり、相手の発呼者に対しては話中表
示となる。
For this reason, the exchange 400 recognizes that all calls are busy, so incoming call control is no longer performed, and a busy display is displayed to the other party's caller.

この結果、他回線の交換機の使用率の低下を防ぐことが
可能となる。
As a result, it is possible to prevent a decrease in the usage rate of exchanges for other lines.

〔実施例〕〔Example〕

第2図は本発明の実施例の装置の構成を示すブロック図
である。
FIG. 2 is a block diagram showing the configuration of an apparatus according to an embodiment of the present invention.

第3図は実施例の動作を説明する図である。FIG. 3 is a diagram explaining the operation of the embodiment.

企図を通じて同一符号は同一対象物を示す。The same reference numerals refer to the same objects throughout the design.

第2図において、交換機40側の集線装置30が30C
11目の信号を中細、すると、その信号を集線装置30
内のFULL BUSY検出回路32においてFUI、
L BUSYとして検出を行い、各Cllインクフェー
ス部33−1〜33120に発呼信号を出力する。すで
に中継している30CII分の回線については、対応す
るC11インタフエース部で一ヒ記発呼信号を無視する
ようにする。
In FIG. 2, the line concentrator 30 on the exchange 40 side is 30C
When the 11th signal is medium-thin, that signal is sent to the line concentrator 30.
In the FULL BUSY detection circuit 32 in the FUI,
Detection is performed as L BUSY, and a calling signal is output to each Cll ink face section 33-1 to 33120. For the 30 CII lines that have already been relayed, the corresponding C11 interface section ignores the calling signal.

」二記発呼信号がCllインクフェース部から交換機4
0に転送さと、ると、交換機40は発呼受付状態となり
、ダイヤル信号が集線装置30から送られないために交
換@40は数10秒待ってロノクアウ1へ処理をし、呼
が入力しないように切り離してしまう。
” The second call signal is sent from the CLL ink face section to the exchange 4.
0, the exchange 40 enters the call receiving state, and since the dial signal is not sent from the line concentrator 30, the exchange @ 40 waits several tens of seconds and processes the call to Ronokau 1 to prevent the call from being input. It separates into two.

第3図に一ヒ述の処理手順を示す。FIG. 3 shows the processing procedure described above.

この結果、他回線に対する交換機の使用率の低下を防く
ことが可能となる。
As a result, it is possible to prevent a decrease in the usage rate of the exchange for other lines.

〔発明の効果] 以上説明したように本発明によれば、他回線に対する交
換機の使用率の低下を防くことが可能となる。
[Effects of the Invention] As explained above, according to the present invention, it is possible to prevent a decrease in the usage rate of an exchange for other lines.

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

第1図は本発明の原理図、 第2図は本発明の実施例の装置の構成を示すブロック図
、 第3図は実施例の動作を説明する図、 第4図は一例の集線装置を有するデータ伝送システムの
構成を示すブロンク図である。 図において 320は全話中検出回路 を示す。
Fig. 1 is a diagram showing the principle of the present invention, Fig. 2 is a block diagram showing the configuration of an apparatus according to an embodiment of the invention, Fig. 3 is a diagram explaining the operation of the embodiment, and Fig. 4 is an example of a line concentrator. FIG. 1 is a block diagram showing the configuration of a data transmission system having the following configuration. In the figure, 320 indicates an all-busy detection circuit.

Claims (1)

【特許請求の範囲】[Claims] nチャネルの加入者線に接続されるn個のチャネルイン
タフェース部(330−1〜330−n)と、該n個の
チャネルインタフェース部の出力を入力しmチャネル(
n>m)のデータを多重化して出力し、かつnチャネル
のデータに共通の処理を行う共通部(305)とを有し
、入力が該チャネルインタフェース部から加入者線を介
して交換機(400)に接続され、出力が該共通部の出
力のmチャネルの多重化したデータを伝送する伝送路を
介して集線装置(200)に接続される集線装置(30
0)において、該共通部に、該チャネルインタフェース
部の出力を順次入力し、mチャネル目の信号を受信した
時中継線全話中として検出を行い、残りの(n−m)個
のチャネルインタフェース部に対して発呼信号を出力す
る全話中検出回路(320)を設けたことを特徴とする
集線装置における中継線全話中通知方式。
n channel interface units (330-1 to 330-n) connected to n channel subscriber lines, input the outputs of the n channel interface units, and
It has a common part (305) that multiplexes and outputs the data of n>m) and performs common processing on the data of n channels, and the input is sent from the channel interface part to the exchange (400) via the subscriber line. ), the output of which is connected to the line concentrator (200) via a transmission line that transmits m-channel multiplexed data of the output of the common section.
0), the outputs of the channel interface section are sequentially input to the common section, and when the mth channel signal is received, it is detected that all trunk lines are busy, and the remaining (nm) channel interfaces are connected to the common section. An all-busy notification system in a line concentrator, characterized in that an all-busy detection circuit (320) is provided for outputting a call signal to a trunk line concentrator.
JP30913988A 1988-12-07 1988-12-07 Trunk line all busy information system for concentrator Pending JPH02154596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30913988A JPH02154596A (en) 1988-12-07 1988-12-07 Trunk line all busy information system for concentrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30913988A JPH02154596A (en) 1988-12-07 1988-12-07 Trunk line all busy information system for concentrator

Publications (1)

Publication Number Publication Date
JPH02154596A true JPH02154596A (en) 1990-06-13

Family

ID=17989374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30913988A Pending JPH02154596A (en) 1988-12-07 1988-12-07 Trunk line all busy information system for concentrator

Country Status (1)

Country Link
JP (1) JPH02154596A (en)

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