JPH0198397A - Terminal accommodation system for exchange - Google Patents
Terminal accommodation system for exchangeInfo
- Publication number
- JPH0198397A JPH0198397A JP25608287A JP25608287A JPH0198397A JP H0198397 A JPH0198397 A JP H0198397A JP 25608287 A JP25608287 A JP 25608287A JP 25608287 A JP25608287 A JP 25608287A JP H0198397 A JPH0198397 A JP H0198397A
- Authority
- JP
- Japan
- Prior art keywords
- digital
- terminal
- exchange
- line
- line concentrator
- 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
- 230000004308 accommodation Effects 0.000 title abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- 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】
（産業上の利用分野）
本発明は複数のディジタル端末上交換機に収容する方式
に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a system for accommodating a plurality of digital terminals in an exchange.
（従来の技術）
従来のこの種のディジタル端末の交換機への端未収容万
式は、端末対応に端末インタフェースを交換機の端末収
容装置に設け、ディジタル端末と端末インタフェースと
の間を通信用チャネルと制御用チャネルを多重化したデ
ィジタル伝送路によって接続し、１つの端末対応には１
本の通信ケーブルを使用して、ディジタル端末を交換機
に直接収容接続していた。(Prior Art) Conventionally, this type of digital terminal has not been integrated into an exchange, but a terminal interface is provided in the terminal accommodation device of the exchange to accommodate the terminal, and a communication channel and communication channel between the digital terminal and the terminal interface are provided. Control channels are connected by multiplexed digital transmission paths, and one terminal is connected to the other.
Standard communication cables were used to connect digital terminals directly to exchanges.
（発明が解決しようとする問題点）
従来の端末収容方式は、上述のように１つの端末には１
つのディジタル伝送路を使用しているので端末数に応じ
てディジタル伝送路の本数を確保する必要があつ几。(Problems to be Solved by the Invention) The conventional terminal accommodating system has one terminal as described above.
Since two digital transmission lines are used, it is necessary to secure the number of digital transmission lines according to the number of terminals.
また、交換機に設けられている端末収容装置もディジタ
ル伝送路の数だけ用意しなければならないので端末数に
比例してディジタル伝送路および端末収容装置のコスト
が高くなると−う欠点がある。Furthermore, since the number of terminal accommodating devices provided in the exchange must correspond to the number of digital transmission paths, there is a drawback that the costs of the digital transmission paths and the terminal accommodating devices increase in proportion to the number of terminals.
本発明の目的は上記欠点を解決するもので、収容端末数
が多い場合でも、従来に比較し端末収容装置、および伝
送路の数を削減してコストの低減化を図ることができる
交換機の端末収容方式を提供することにある。An object of the present invention is to solve the above-mentioned drawbacks, and to provide a terminal for an exchange that can reduce costs by reducing the number of terminal accommodating devices and transmission lines compared to the past even when a large number of terminals are accommodated. The purpose is to provide a containment method.
（問題点を解決する几めの手段）
前記目的を達成する友めに本発明による交換機の端末収
容方式は複数のディジタル端末を交換機に収容する方式
において、前記複数のディジタル端末と交換機の間に集
線装置を設け、前記集線装置は前記各ディジタル端末に
対応して設けられ、それぞれ通信用チャネルおよび制御
用チャネルによって通信上行なう端末接続回路と、前記
複数のディジタル端末の通信が競合したとき、１つのデ
ィジタル端末の通信全選択し。(Detailed Means for Solving the Problems) To achieve the above object, the terminal accommodating method of an exchange according to the present invention is a method for accommodating a plurality of digital terminals in an exchange, in which a terminal is placed between the plurality of digital terminals and the exchange. A line concentrator is provided, and the line concentrator is provided corresponding to each of the digital terminals, and when communication between the plurality of digital terminals conflicts with a terminal connection circuit that performs communication through a communication channel and a control channel, respectively, 1 Select all communications for one digital terminal.
他のディジタル端末にはその旨を通知する衝突信号発生
回路と、前記複数の端末接続回路の通信用チャネルおよ
び制御用チャネルを複数の通信用チャネルおよび１つの
制御用チャネルに多重化し、前記複数の通信用チャネル
および１つの制御用チャネルを前記各端末接続回路への
通信用チャネルと制御用チャネルに分離する回線接続回
路とから構成し、前記交換機と集線装置との間は複数の
通信用チャネルと１つの制御用チャネルを多重化した１
組のディジタル伝送路によって接続し、前記集線装置と
各ディジタル端末との間は、各ディジタル端末毎に通信
用チャネルと制御用チャネルを多重化し友ディジタル伝
送路によって接続して構成しである。A collision signal generation circuit that notifies other digital terminals to that effect, and a communication channel and a control channel of the plurality of terminal connection circuits are multiplexed into a plurality of communication channels and one control channel. It is composed of a communication channel and a line connection circuit that separates one control channel into a communication channel and a control channel to each of the terminal connection circuits, and a plurality of communication channels and a control channel are connected between the exchange and the line concentrator. 1 multiplexed control channel
The line concentrator and each digital terminal are connected by a set of digital transmission paths, and communication channels and control channels are multiplexed for each digital terminal and connected by a companion digital transmission path.
（実 施例）
以下１図面を参照して本発明方式をさらに詳しく説明す
る。(Example) The system of the present invention will be explained in more detail below with reference to one drawing.
第１図は、本発明による交換機の端末収容方式の一実施
例を示すシステム構成図である。FIG. 1 is a system configuration diagram showing an embodiment of a terminal accommodating system of an exchange according to the present invention.
複数のディジタル端末１１１．１１８は端末接続線１３
．１４を介して集線装置１００に接続され、集線装置１
００は、ディジタル伝送器１１を介して交換機１０に接
続される。A plurality of digital terminals 111 and 118 are connected to the terminal connection line 13
．． 14 to the line concentrator 100, and the line concentrator 1
00 is connected to the exchange 10 via a digital transmitter 11.
上記接続によってディジタル端末１１１，１１８は集線
装置１００を介して交換機１０に収容される。Through the above connection, the digital terminals 111 and 118 are accommodated in the exchange 10 via the line concentrator 100.
第２図は、ディジタル端末、集線装置および交換機の詳
細を示す回路ブロック図である。FIG. 2 is a circuit block diagram showing details of the digital terminal, line concentrator, and exchange.
交換機１０は端末収容装置１５ｔ″有している。The exchange 10 has a terminal housing device 15t''.
集線装置１００は回線接続回路１５ｏ、端末接続回路１
４１．１４８および衝突信号発生回路１６０より構成さ
れる。The line concentrator 100 includes a line connection circuit 15o and a terminal connection circuit 1.
41, 148 and a collision signal generation circuit 160.
ディジタル端末１．１１，１１８は、伝送回路１３１．
１３８および送受信回路１２１．１２８より構成される
。The digital terminal 1.11, 118 is connected to the transmission circuit 131.
138 and transmitting/receiving circuits 121 and 128.
交換機１０内部の端末収容装置１５は１回線接続回路１
５０とディジタル伝送路１１を介して集線装置１００に
接続されている。ディジタル伝送路１１上は、ただ１つ
の制御用チャネル（Ｄｃｈ）信号と、端末数に応じ次複
数のデータチャネル（Ｂａｈ）信号が時分割で多重化さ
れて伝送される。ディジタル伝送路１１は、２ペアのツ
イストケーブルを用いて構成されている。The terminal accommodation device 15 inside the exchange 10 has one line connection circuit 1
50 and is connected to the line concentrator 100 via the digital transmission line 11. On the digital transmission path 11, a single control channel (Dch) signal and a plurality of data channel (Bah) signals depending on the number of terminals are multiplexed and transmitted in a time division manner. The digital transmission line 11 is configured using two pairs of twisted cables.
回線接続回路１５０には、ディジタル伝送路１１、複数
の端末接続回路１４１．１４８からの６４ＫｂｐＳｏＢ
チヤネルデータ線１０１，１０２．１０３，１０４．端
末接続回路１４１゜１４８に向かう６４ ＫｂｐｓのＤ
チャンネル信号の信号線１０５および衝突信号発生回路
１６０を介して選択されたディジタル端末、例えばディ
ジタル端末１１１からの６４ ＫｂｐｓのＤチャネル信
号の信号線１０６が接続されている。The line connection circuit 150 includes a 64Kbp SoB from the digital transmission line 11 and a plurality of terminal connection circuits 141.148.
Channel data lines 101, 102.103, 104. 64 Kbps D towards terminal connection circuit 141°148
A signal line 106 for a 64 Kbps D channel signal from a selected digital terminal, for example, the digital terminal 111, is connected via a channel signal signal line 105 and a collision signal generation circuit 160.
また、ディジタル端末１１１，１１８内部の伝送回路１
３１．１３８は集線装置１００内部の端末接続回路１４
１．１４８に接続される−７゜送受信回路１２１，１２
８にも接続されている。In addition, the transmission circuit 1 inside the digital terminals 111 and 118
31.138 is the terminal connection circuit 14 inside the line concentrator 100
-7° transmitting/receiving circuit 121, 12 connected to 1.148
8 is also connected.
第３図はディジタル端末と集線装置間の端末接続線路１
３．１４上の情報のフレームフォーマットの一例を示す
図である。Figure 3 shows the terminal connection line 1 between the digital terminal and the concentrator.
3.14 is a diagram showing an example of the frame format of the information above.
ディジタル端末１１１．１１８と端末収容装置間のフォ
ーマットは第３図から明らかなようにスタートフラグ、
＄ ４ ＫｂｐｓのＤｃｈデータ、６４ Ｋｂｐｓ （
Ｄ Ｂ ｃｈデー１．６４ Ｋｂｐｓ （ＤＢ ｃｈデ
ータ、衝突信号（Ｃｃｈデータ）およびエンドフラグよ
り構成されている。As is clear from FIG. 3, the format between the digital terminal 111, 118 and the terminal accommodation device is a start flag,
$4 Kbps Dch data, 64 Kbps (
DB ch data 1.64 Kbps (consists of DB ch data, collision signal (Cch data) and end flag.
伝送回路１３１．１３８は端末接続線路１３゜１４上の
多重化され２ Ｄ ｃｈ倍信号Ｂｃｈ信号および衝突通
知（Ｃｃｈ）４￥！１号をそれぞれ独立に送受信回路１
２１．１２８に伝える。The transmission circuits 131 and 138 are multiplexed on the terminal connection line 13゜14 and have a 2D ch double signal Bch signal and a collision notification (Cch) 4\! Transmitting and receiving circuit 1 for each number 1 independently
21. Tell 128.
ディジタル端末１１１内部の送受信回路１２１は交換機
１０を介して接続される別のディジタル端末１１８内部
の送受信回路１２８に対してＢ Ｃｈ倍信号送受を行な
い、交換機に対してＤｃｈの送受を行なう。さらに集線
装置１００からのＣｃｈの受信を行なう。A transmitting/receiving circuit 121 inside the digital terminal 111 transmits and receives B Ch times signals to a transmitting/receiving circuit 128 inside another digital terminal 118 connected via the exchange 10, and transmits and receives Dch signals to and from the exchange. Furthermore, it receives Cch from the line concentrator 100.
送受信回路１２１，１２８から交換機１０へ送られるＤ
ｃｈ信号は、ディジタル伝送路１１の１チヤンネルの通
信路を用いて行なわれるため。D sent from the transmitting/receiving circuits 121 and 128 to the exchange 10
This is because the channel signal is transmitted using one channel of the digital transmission path 11.
複数のディジタル端末１１１．１１８からＤｃｈ傷号が
同時に送出された場合、衝突回避のための制御が集線装
置１００内部の衝突信号発生回路１６０１Ｃよって行な
われる。例えば衝突信号発生回路１６０がディジタル端
末１１１からのＤｃｈ信号だけを選択し、交換ａ１０内
の端末収容装置１５に通信する一方、その他のディジタ
ル端末１例えばディジタル端末１１８に対しては衝突信
号線２０２を介してＣｃｈ信号により送受信回路１２８
より発したＤｃｈ信号に衝突が発生し、Ｄｃｈ信号が交
換機ｌＯの端末収容装置１５に送出されなかったことを
通知する。When Dch fault signals are simultaneously transmitted from a plurality of digital terminals 111 and 118, the collision signal generation circuit 1601C inside the line concentrator 100 performs control to avoid collision. For example, the collision signal generation circuit 160 selects only the Dch signal from the digital terminal 111 and communicates it to the terminal accommodating device 15 in the exchange a10, while transmitting the collision signal line 202 to other digital terminals 1, for example, the digital terminal 118. Transmission/reception circuit 128 by Cch signal via
It is notified that a collision has occurred in the Dch signal emitted by the switch and that the Dch signal was not sent to the terminal accommodation device 15 of the exchange IO.
送受信回路１２８は端末接続回路１４５および伝送回路
１３８を介して上記衝突信号を検出すると、−時的にＤ
ｃｈ信号の送出を停止し、ある一定期間後にＤｃｈＱ号
金再度送出する。When the transmitter/receiver circuit 128 detects the collision signal via the terminal connection circuit 145 and the transmission circuit 138, -
The channel signal transmission is stopped, and the DchQ signal is transmitted again after a certain period of time.
上記構成は集線装置１００内の衝突信号発生回路１６０
とディジタル端末１１１．１１８内の送受信回路１２１
．１２８が共同して複数のディジタル端末の複数のＤｃ
ｈ信号の競合制御を実現するものであり、−度に１つの
ディジタル端末のＤｃｈ信号だけを交換機の端末収容装
置１５に伝送するようになっている。The above configuration is based on the collision signal generation circuit 160 in the line concentrator 100.
and the transmitting/receiving circuit 121 in the digital terminal 111.118.
．． 128 jointly connects multiple DCs of multiple digital terminals.
This system realizes competitive control of h signals, and transmits only the Dch signal of one digital terminal to the terminal accommodating device 15 of the exchange at a time.
以上、各接続器、回線、ディジタル伝送速度。Above are each connector, line, and digital transmission speed.
伝送フォーマットおよび機能ブロックにつＡて一実施例
を説明したが、上記実施例に用い次名称、数値、伝送フ
ォーマットが本発明の範囲を限定するものではない。Although one embodiment has been described with respect to the transmission format and functional blocks, the following names, numerical values, and transmission formats used in the above embodiment do not limit the scope of the present invention.
（発明の効果）
以上、説明したように本発明は、複数の端末を集線装置
に接続し、集線装置によって各端末間の競合を回避しつ
つ、一つのディジタル伝送路によって集線装置と交換機
の間を接続することによＶ、複数の端末を交換機に収容
する構成であるので、従来に比較し、ディジタル伝送路
および交換機の端末収容装置の数を削減しコストを低減
できるという効果がある。(Effects of the Invention) As explained above, the present invention connects a plurality of terminals to a line concentrator, avoids contention between the terminals by the line concentrator, and connects the line concentrator and the switch using one digital transmission path. Since the configuration is such that a plurality of terminals are accommodated in an exchange by connecting V, the number of digital transmission paths and terminal accommodation devices of the exchange can be reduced and costs can be reduced compared to the conventional system.
第１図は１本発明による交換機の端末収容方式の一実施
例を示すシステム構成図、第２図はディジタル端末、端
末収容装置および交換機の詳細を示すブロック図である
。
第３図は、第１図におけるディジクル端末と集線装置間
の伝送フォーマットの一例金示す図である。
１０・・・交換機 １１−・・ディジタル、伝送路１
３．１４・・・端末接続線路
１５・・・端末収容装置 １００−・・集線装置１０
１．１０２，１０３．１０４・・・５４ ＫｂｐｓのＢ
チャネル信号の信号線
１（１５，１０６，１０７，１０８・−５４Ｋｂｐｓの
Ｄチャネル信号の信号線
１１１ 、１１８−・・ディジタル端末１２１・・・送
受信回路 １３］・・・伝送回路１４１−・・端末接
続回路FIG. 1 is a system configuration diagram showing an embodiment of a terminal accommodating system for an exchange according to the present invention, and FIG. 2 is a block diagram showing details of a digital terminal, a terminal accommodating device, and an exchange. FIG. 3 is a diagram showing an example of the transmission format between the digital terminal and the line concentrator in FIG. 1. 10... Exchange 11-... Digital, transmission line 1
3.14... Terminal connection line 15... Terminal accommodation device 100-... Line concentrator 10
1.102,103.104...54 Kbps B
Channel signal signal line 1 (15, 106, 107, 108...-54 Kbps D channel signal signal line 111, 118--digital terminal 121...transmission/reception circuit 13)...transmission circuit 141--terminal connection circuit
Claims (1)
、前記複数のディジタル端末と交換機の間に集線装置を
設け、前記集線装置は前記各ディジタル端末に対応して
設けられ、それぞれ通信用チャネルおよび制御用チャネ
ルによつて通信を行なう端末接続回路と、前記複数のデ
ィジタル端末の通信が競合したとき、１つのディジタル
端末の通信を選択し、他のディジタル端末にはその旨を
通知する衝突信号発生回路と、前記複数の端末接続回路
の通信用チャネルおよび制御用チャネルを複数の通信用
チャネルおよび１つの制御用チャネルに多重化し、前記
複数の通信用チャネルおよび１つの制御用チャネルを前
記各端末接続回路への通信用チャネルと制御用チャネル
に分離する回線接続回路とから構成し、前記交換機と集
線装置との間は複数の通信用チャネルと１つの制御用チ
ャネルを多重化した１組のディジタル伝送路によつて接
続し、前記集線装置と各ディジタル端末との間は各ディ
ジタル端末毎に通信用チャネルと制御用チャネルを多重
化したディジタル伝送路によつて接続したことを特徴と
する交換機の端末収容方式。In a method of accommodating a plurality of digital terminals in an exchange, a line concentrator is provided between the plurality of digital terminals and the exchange, and the line concentrator is provided corresponding to each digital terminal, and has a communication channel and a control channel, respectively. a terminal connection circuit that performs communication by means of a collision signal generation circuit that selects communication of one digital terminal and notifies other digital terminals to that effect when communication between the plurality of digital terminals conflicts; The communication channels and control channels of the plurality of terminal connection circuits are multiplexed into a plurality of communication channels and one control channel, and the plurality of communication channels and one control channel are connected to each of the terminal connection circuits. It consists of a line connection circuit that separates communication channels and control channels, and a set of digital transmission paths in which a plurality of communication channels and one control channel are multiplexed is used between the exchange and the line concentrator. A system for accommodating terminals in an exchange, characterized in that the line concentrator and each digital terminal are connected by a digital transmission line in which a communication channel and a control channel are multiplexed for each digital terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25608287A JPH0198397A (en) | 1987-10-09 | 1987-10-09 | Terminal accommodation system for exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25608287A JPH0198397A (en) | 1987-10-09 | 1987-10-09 | Terminal accommodation system for exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0198397A true JPH0198397A (en) | 1989-04-17 |
Family
ID=17287641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25608287A Pending JPH0198397A (en) | 1987-10-09 | 1987-10-09 | Terminal accommodation system for exchange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0198397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000044195A1 (en) * | 1999-01-20 | 2000-07-27 | Fujitsu Limited | High speed digital transmission method employing analog subscriber's loop, subscriber accommodation system used for the high speed digital transmission method, subscriber terminated side accommodation device, and accommodating station side accommodation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61187496A (en) * | 1985-02-15 | 1986-08-21 | Fujitsu Ltd | Emergency calling connection control system |
| JPS61228799A (en) * | 1985-04-03 | 1986-10-11 | Nec Corp | Signal channel communication system |
-
1987
- 1987-10-09 JP JP25608287A patent/JPH0198397A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61187496A (en) * | 1985-02-15 | 1986-08-21 | Fujitsu Ltd | Emergency calling connection control system |
| JPS61228799A (en) * | 1985-04-03 | 1986-10-11 | Nec Corp | Signal channel communication system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000044195A1 (en) * | 1999-01-20 | 2000-07-27 | Fujitsu Limited | High speed digital transmission method employing analog subscriber's loop, subscriber accommodation system used for the high speed digital transmission method, subscriber terminated side accommodation device, and accommodating station side accommodation device |
| US6925090B2 (en) | 1999-01-20 | 2005-08-02 | Fujitsu Limited | High-speed digital transmission method allowing plurality of voice services by use of single subscriber line |
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