JPS58151194A - Remote subscriber line concentrator - Google Patents
Remote subscriber line concentratorInfo
- Publication number
- JPS58151194A JPS58151194A JP3346782A JP3346782A JPS58151194A JP S58151194 A JPS58151194 A JP S58151194A JP 3346782 A JP3346782 A JP 3346782A JP 3346782 A JP3346782 A JP 3346782A JP S58151194 A JPS58151194 A JP S58151194A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- switches
- line concentrator
- subscriber line
- time
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/60—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to satellites or concentrators which connect one or more exchange lines with a group of local lines
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は時分割交換機における遠隔加入者線集線装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote subscriber line concentrator in a time division switch.
従来の遠隔集線装置、特にその集線スイッチ構成は、例
えば第１図に示すとおシである。第１図において、１ｇ
、１ｂは電話機、２は遠隔加入者線集線装置、３ｔｊ親
局装置を示す、一般に時分割交換機においてメモリ素子
を用いた時間スイッチの単一のスイッチの大きさは使用
される部品によシ決定されるが、一般的記憶容量は１０
２４Ｘ１０２４のサイズが最大である。遠隔局の加入者
線端子数が１０２４Ｔｈ超′えるものについては複数の
時間スイイタチが必要となる。第１図の遠隔加入者線集
線装置２においては、時間スイッチｔ−２個使用し次側
を示している。電話機１ａ、ｌｂはそれぞれ対応した加
入者回路２ｏａ、ｚｏｂＶｃ接続されており、加入者回
路２０ａ、２０ｂは電話機１ａ、ｌｂからのアナログ音
声信号をディジタル音声信号に変換して時間スイッチ２
１ａ、２１ｂに送出すると共に、電話機１ａ、１ｂのオ
ンフック、オフフック情報を監視信号として時間スイッ
チｌａ、ｌｂに送出している。かかる時間スイッチ２１
ａと、２１ｂとで集線スイッチを構成しており、制御回
路２４よ〕通話パス接続および解放の指示をうける１時
間スイッチ２１１．２１ｂは音声信号と監視信号を同時
に制御し、音声信号は同期端局２２ｍ。A conventional remote line concentrator, particularly its line concentrator switch configuration, is shown in FIG. 1, for example. In Figure 1, 1g
, 1b is a telephone, 2 is a remote subscriber line concentrator, and 3tj is a master station device.Generally, in a time division switch, the size of a single time switch using a memory element is determined by the parts used. However, the typical storage capacity is 10
The maximum size is 24×1024. If the number of subscriber line terminals at a remote station exceeds 1024 Th', multiple time switches are required. In the remote subscriber line concentrator 2 shown in FIG. 1, t-2 time switches are used and the next side is shown. Telephones 1a and lb are connected to corresponding subscriber circuits 2oa and zobVc, respectively, and subscriber circuits 20a and 20b convert the analog voice signals from telephones 1a and lb into digital voice signals to time switch 2.
1a and 21b, and also sends on-hook and off-hook information of telephones 1a and 1b as monitoring signals to time switches la and lb. The time required switch 21
A and 21b constitute a concentrator switch, and the one-hour switch 211 receives instructions from the control circuit 24 to connect and release the communication path.The one-hour switch 211b controls the audio signal and the monitoring signal simultaneously, and the audio signal is sent to the synchronous terminal. Station 22m.
２２ｂに、また監視信号は監視トランク２５へ送出する
。遠隔加入者線集線装置２の同期端局２２ｍ。22b, and the supervisory signal is sent to the supervisory trunk 25. Synchronous terminal station 22m of remote subscriber line concentrator 2.
２２ｂは、親局装置３の同期端局３０Ｍ、３０ｂとＰＣ
Ｍ伝送路にて結ばれ、さらに分配スイッチ３１へと接続
される。とのＰＣＭ伝送路においては８ビツト以上の論
理″ＯＩ′が連続することを禁止しているため、通話バ
ス解放時の音声信号は無通話と、ドパターン”０１１１
１１１１” を流す必要がある。また、通話パス解放時
の監視信号は監視トランク２５に対して、オンフック情
報とすることが必要である。かかる無通話ビ、ドパター
ンとオンフック情報を発生するのが信号発生回路２３で
あり時間スイッチ２１Ｊ１，２１ｂに接続される。22b is the synchronous terminal station 30M of the master station device 3, 30b and the PC
They are connected by an M transmission line and further connected to a distribution switch 31. Since consecutive logic "OI" of 8 bits or more is prohibited on the PCM transmission path with the communication bus, the voice signal when the call bus is released will be a no-call and a pattern "0111".
1111" must be transmitted. Also, the monitoring signal when the call path is released needs to be on-hook information for the monitoring trunk 25. It is necessary to generate such a no-call beep pattern and on-hook information. The signal generating circuit 23 is connected to the time switches 21J1 and 21b.
このように、従来の集線スイッチ構成においては、集線
スイッチが複数のスイッチよシ構成されている友め完全
群とは力らず、各々のスイッチに対応した同期端局が必
要となる。したがってスイッチ間の呼量不均衡を吸収で
裏ない九め、金物量ヤ集線スイ、チめ入側チャネルの一
部が加入者用に使用できないという欠点もある。As described above, in the conventional line concentrator switch configuration, the line concentrator switch does not form a complete group consisting of a plurality of switches, but requires a synchronous terminal station corresponding to each switch. Therefore, there is a disadvantage that a part of the incoming channel cannot be used for subscribers because the unbalanced call volume between the switches cannot be absorbed by the switch.
本発明の目的は、上記スイッチ間の呼量不均衡の是正と
集線スイ、・チの入側チャネルの有効利用を実現する遠
隔加入者線集線装置を提供するもので、その特徴とする
点は複数の時間スイッチｎ個（ｎ≧２）と、その後段に
セレクト機能を有す群間スイッチとで完全群になる集線
スイッチを構成し、且つ、前記群間スイッチの入側に無
通話時の音声信号と監視信号の−ｆｆｌＳｔ−発生させ
る信号発生回路を接続したことにある。An object of the present invention is to provide a remote subscriber line concentrator that corrects the call volume imbalance between the switches and makes effective use of the ingress channel of the concentrator switch. A line concentration switch that forms a complete group is formed by a plurality of n time switches (n≧2) and an inter-group switch having a selection function at the subsequent stage, and a line concentration switch is provided at the input side of the inter-group switch when there is no call. This is because a signal generation circuit for generating -fflSt- of an audio signal and a monitoring signal is connected.
次に本発明の実施例について第２図を参照して説明する
。第２図において、時間スイッチ２１ａ。Next, an embodiment of the present invention will be described with reference to FIG. In FIG. 2, time switch 21a.
２１ｂの後段にセレクト機能を有する群間スイ。An inter-group switch with a select function after 21b.
チ２６を設け、３人力のうち２人力は時間スイッチ２１
，１．２１ｂに接続し、残りの入力を信号発生回路２３
に接続する。集線スイッチは時間スイッチ２１１．２１
ｂと群間スイッチ２６により完全群を構成する０群間ス
イッチ２６は制御回□路寓よ〕制御されるが、制御デー
タは第１図の集線スイッチに比して、接あるいは不接の
１ビツトが追加になるのみである。すなわち接待には時
間スイッｆ２１ ｍ又は２１ｂのいずれかを選択し、不
接時には信号発生回路２３を選択する。遠隔加入者線集
線装置２の同期端局２２と親局装置３の同期端局３０は
、従来のように分割されず共通に設置しである。26 is provided, and 2 of the 3 manpower are operated by the time switch 21.
, 1.21b, and the remaining inputs are connected to the signal generation circuit 23.
Connect to. The line concentration switch is a time switch 211.21
The 0-group switch 26, which constitutes a complete group with the 0-group switch 26 and the 0-group switch 26, is controlled by the control circuit □, but compared to the concentrator switch shown in FIG. Only bits are added. That is, when entertaining, either the time switch f21m or f21b is selected, and when not entertaining, the signal generating circuit 23 is selected. The synchronous terminal station 22 of the remote subscriber line concentrator 2 and the synchronous terminal station 30 of the master station device 3 are not separated as in the conventional case but are installed in common.
本発明は以１説明し友ように、複数のスイッチの後段に
群間スイッチを設け、集線スイッチを完全群として構成
することにより、同期端局の設備数削減、監視トランク
の回路数削減という効果がある。を次無通話時の音声信
号と監視信号の一部を発生させる信号発生回路を個々の
時間スイッチでなく群間スイッチに接続することにより
、集線スイッチの入側チャネルをすべて加入者用として
使用できるという効果もある。As explained below, the present invention has the effect of reducing the number of synchronous terminal equipment and the number of monitoring trunk circuits by providing an inter-group switch after a plurality of switches and configuring the concentrator switches as a complete group. There is. By connecting the signal generation circuit that generates the voice signal and part of the supervisory signal when there is no call to the group switch instead of the individual time switches, all input channels of the concentrator switch can be used for subscribers. There is also this effect.
第１図は従来の集線スイッチ構成を示すブロック図、第
２図は本発明の１実施例である集線スイ、チ構成のブロ
ック図である。
１ｍ、ｌｂ・・・・・・電話機、２・・・・・・遠隔加
入者線集線装置、２０ ｍ、 ２０ ｂ・−−−加入者
回路、２１ｍ。
２１ｂ・・・・・・時間スイッチ、２２，２２８，２２
ｂ。
３０、３０ ａ、 ３０ ｂ・・・・・・同期端局、２
３・・・・・・信号発生回路、２４・・・・・・制御回
路、２５・・・・・・監視トランク、２６・・・・・・
群間スイッチ、３・・・・・・親局装置、第１頁の続き
■出 願 人 株式会社日立製作所
東京都千代田区丸の内−丁目５
番１号−
■出 願 人 富士通株式会社
川崎市中原区上小田中１０１５番地FIG. 1 is a block diagram showing a conventional line concentration switch configuration, and FIG. 2 is a block diagram of a line concentration switch configuration according to an embodiment of the present invention. 1 m, lb...Telephone, 2...Remote subscriber line concentrator, 20 m, 20 b---Subscriber circuit, 21 m. 21b... Time switch, 22, 228, 22
b. 30, 30 a, 30 b...Synchronization terminal station, 2
3...Signal generation circuit, 24...Control circuit, 25...Monitoring trunk, 26...
Inter-group switch, 3... Master station device, continued from page 1 ■Applicant Hitachi Ltd. No. 5-1 Marunouchi-chome, Chiyoda-ku, Tokyo ■Applicant Fujitsu Ltd. Nakahara, Kawasaki City 1015 Kamiodanaka, Ward
Claims (1)
路を介して接続される時分割交換機の遠隔加入者線集線
装置において、音声信号と監視信号を同時に制御する複
数の時間スイッチと、これらスイッチの後段に接続した
セレクト機能を有す群間スイッチと、該群間スイッチの
入側に接続し無通話時の音声信号と監視信号の一部を発
生させる信号４発生回路とを有することを特徴とする遠
隔加入者線集線装置。In a remote subscriber line concentrator of a time division exchange in which a part of the line concentrator connected to the distribution switch is connected via a PCM transmission line, a plurality of time switches that simultaneously control voice signals and supervisory signals, and these switches It is characterized by having an inter-group switch having a select function connected to the rear stage, and a signal 4 generation circuit connected to the input side of the inter-group switch and generating a part of the voice signal and the monitoring signal when there is no call. Remote subscriber line concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3346782A JPS58151194A (en) | 1982-03-03 | 1982-03-03 | Remote subscriber line concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3346782A JPS58151194A (en) | 1982-03-03 | 1982-03-03 | Remote subscriber line concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58151194A true JPS58151194A (en) | 1983-09-08 |
Family
ID=12387346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3346782A Pending JPS58151194A (en) | 1982-03-03 | 1982-03-03 | Remote subscriber line concentrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58151194A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4914007A (en) * | 1972-05-15 | 1974-02-07 | ||
| JPS55161493A (en) * | 1979-06-01 | 1980-12-16 | Fujitsu Ltd | Line concentrating system |
-
1982
- 1982-03-03 JP JP3346782A patent/JPS58151194A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4914007A (en) * | 1972-05-15 | 1974-02-07 | ||
| JPS55161493A (en) * | 1979-06-01 | 1980-12-16 | Fujitsu Ltd | Line concentrating system |
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