JPS6376648A - Modem pool activation system - Google Patents
Modem pool activation systemInfo
- Publication number
- JPS6376648A JPS6376648A JP22275586A JP22275586A JPS6376648A JP S6376648 A JPS6376648 A JP S6376648A JP 22275586 A JP22275586 A JP 22275586A JP 22275586 A JP22275586 A JP 22275586A JP S6376648 A JPS6376648 A JP S6376648A
- Authority
- JP
- Japan
- Prior art keywords
- data terminal
- modem pool
- modem
- terminal device
- character
- 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.)
- Granted
Links
- 230000004913 activation Effects 0.000 title claims description 7
- 238000000034 method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 33
- 230000004044 response Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Data Exchanges In Wide-Area Networks (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】
〔概要〕
文字信号を受信して発呼状態となる機能を有する変復調
装置を具備するモデムプールを有するディジタル交換機
において、ディジタル回線に接続されるデータ端末装置
からモデムプールを介してアナログ回線に接続されるデ
ータ端末装置に発信接続の際、モデムプールに所定の文
字信号を送出し、モデムプール内の変復調装置を発呼状
態に設定する。[Detailed Description of the Invention] [Summary] In a digital exchange having a modem pool equipped with a modem device having a function of receiving a character signal and placing a call, the modem pool is connected to a data terminal device connected to a digital line. When an outgoing connection is made to a data terminal device connected to an analog line via the modem pool, a predetermined character signal is sent to the modem pool to set the modem in the modem pool to a calling state.
本発明はディジタル回線に接続されるデータ端未装置と
、アナログ回線に接続されるデータ端末装置とを接続す
るモデムプールを具備するディジタル交換機において、
モデムプールを構成する変復調装置に、文字信号を受信
して発呼状態となる機能を有する変復調装置を使用可能
とするモデムプール起動方式に関する。The present invention provides a digital exchange equipped with a modem pool that connects a data terminal device connected to a digital line and a data terminal device connected to an analog line.
The present invention relates to a modem pool startup method that enables the use of a modem device having a function of receiving a character signal and entering a calling state as a modem pool constituting a modem pool.
第３図は従来あるモデムプール起動送力式の一例を示す
図である。FIG. 3 is a diagram showing an example of a conventional modem pool activation power transmission method.
第３図において、データ端末装置２が、ディジタルイン
タフェース装Ｗ（ＤＩＦ）３を介してディジタル加入者
線４に接続され、またデータ端末装置８が、変復調装置
（ＭＤ）７を介してアナログ形式の公衆電話Ｈ（ＴＮ）
６に収容されており、更にディジタル交換機１は、アナ
ログ形式の局線５を介して公衆電話Ｗ４６に接続されて
いる。In FIG. 3, a data terminal device 2 is connected to a digital subscriber line 4 via a digital interface W (DIF) 3, and a data terminal device 8 is connected to a digital subscriber line 4 via a modem device (MD) 7. Public telephone H (TN)
The digital exchange 1 is further connected to a public telephone W46 via an analog central office line 5.
データ端末装置２および８は、それぞれ毎秒２゜４キロ
ビツトのデータ信号を送受信するものとする。It is assumed that data terminal devices 2 and 8 each transmit and receive data signals at a rate of 2.4 kilobits per second.
またディジタル加入者線４およびディジタル交換機１の
通話路ｙ４（ＮＷ）１２は、毎秒６４キロビツトのディ
ジタル信号を伝送するものとする。It is also assumed that the digital subscriber line 4 and the communication path y4 (NW) 12 of the digital exchange 1 transmit a digital signal of 64 kilobits per second.
ディジタルインタフェース装置３は、データ端末装置２
が送信するデータ信号を６ビツト宛区分し、それぞれ２
ビツトの同期ビットおよび信号ビットを付加して８ビツ
トのエンベロープを構成し、該エンベロープを２０回繰
返し送信することにより、毎秒６４キロビツトのディジ
タル信号に変換し、ディジタル加入者線４に送出する。The digital interface device 3 is the data terminal device 2
Divide the data signal sent by 6 bits into 2 bits each.
A synchronization bit and a signal bit are added to form an 8-bit envelope, and by transmitting the envelope 20 times, it is converted into a digital signal at 64 kilobits per second and sent to the digital subscriber line 4.
またディジタルインタフェース装置３は、ディジタル加
入者線４から到着する毎秒６４キロビツトのディジタル
信号を、前述の逆の手順により毎秒２．４キロビツトの
データ信号に逆変換し、データ端末装置２に伝達する。Further, the digital interface device 3 inversely converts the 64 kilobits per second digital signal arriving from the digital subscriber line 4 into a 2.4 kilobits per second data signal by the reverse procedure described above, and transmits it to the data terminal device 2.
なお信号ビットは、データ通信フェーズに入った後は、
送信要求信号Ｒ３の伝送に用いられる。Note that the signal bits, after entering the data communication phase,
It is used to transmit the transmission request signal R3.
変復調装置７は、公知の如くデータ端末装置８が送信す
るデータ信号により、音声帯域内の搬送波を変調したア
ナログ形式の変調波を公衆電話網６に送信し、また公衆
電話網６から受信する変調波をデータ信号に復調し、デ
ータ端末装置８に伝達する。As is well known, the modulation/demodulation device 7 transmits analog modulated waves obtained by modulating carrier waves in the voice band to the public telephone network 6 using data signals transmitted by the data terminal device 8, and receives modulated waves from the public telephone network 6. The wave is demodulated into a data signal and transmitted to the data terminal device 8.
更にディジタル交換機１には、ディジタル信号を送受信
するデータ端末装置２と、変調波を送受信するデータ端
末装置８相互間で通信を可能とする為に、モデムプール
（ＭＰ）１５が設けられている。Further, the digital exchange 1 is provided with a modem pool (MP) 15 to enable communication between the data terminal device 2 that transmits and receives digital signals and the data terminal device 8 that transmits and receives modulated waves.
モデムプール１５は、変復調装置７と同等の機能を有す
る変復調装置（ＭＤ）１５２と、変復調装置１５２のデ
ータ信号送受信端子を通話路網１２に接続するディジタ
ルインタフェース部（ＤＩ）１５１と、変復調装置１５
２の変調波送受信端子を通話路網１２に接続するアナロ
グインタフェース部（ＡＩ）１５３とを具備している。The modem pool 15 includes a modem (MD) 152 having the same function as the modem 7 , a digital interface (DI) 151 that connects a data signal transmission/reception terminal of the modem 152 to the channel network 12 , and
The analog interface unit (AI) 153 connects the modulated wave transmitting/receiving terminal of No. 2 to the communication channel network 12.
今データ端末装置２がデータ端末装置８に対し発呼し、
局線５に対する発信番号（例えば「０」）、並びに公衆
電話網６に対するデータ端末装置８の加入者番号く例え
ば０４４−７７７−１１１１）を送出すると、ディジタ
ル交換機１の中央制御装置（ＣＣ）１３は、ディジタル
インタフェース装置３、ディジタル加入者線４およびデ
ィジタル加入者回路（ＤＬＣ）１１を経由して伝達され
る局線発信番号「０」を分析し、モデムプール１５を経
由して接続する必要ありと判定し、空き局線トランク（
ＣＢＴ）１４を選択・捕捉して局線５に対し発信状態と
し、データ端末装置８の加入者番号ｒ０４４−７７７−
１１１１Ｊを局線５を経由して公衆電話網６に送出し、
その間空きモデムプール１５を選択・捕捉し、通話路網
１２内に通話路ｐ１およびｐ２を設定し、モデムプール
１５をディジタル加入者線４および局線５に接続する。Now, the data terminal device 2 makes a call to the data terminal device 8,
When the calling number (e.g. "0") for the central office line 5 and the subscriber number of the data terminal device 8 (e.g. 044-777-1111) for the public telephone network 6 are sent, the central control unit (CC) 13 of the digital exchange 1 It is necessary to analyze the office line origination number "0" transmitted via the digital interface device 3, digital subscriber line 4 and digital subscriber circuit (DLC) 11, and connect via the modem pool 15. It is determined that the vacant central office line trunk (
CBT) 14 is selected and captured to make a call to the central office line 5, and the subscriber number r044-777- of the data terminal device 8 is selected and captured.
1111J to the public telephone network 6 via the central office line 5,
During this time, a vacant modem pool 15 is selected and acquired, communication paths p1 and p2 are set in the communication path network 12, and the modem pool 15 is connected to the digital subscriber line 4 and the central office line 5.
公衆電話網６がデータ端末装置８を呼出し、データ端末
装置８が応答した際に局線５に応答信号を返送すると、
中央制御装置１３は局線トランク１４を介して応答信号
を検出し、ディジタル加入者回路１１、ディジタル加入
者線４およびディジタルインタフェース装Ｗ３を経由し
てデータ端末装置２に応答信号を返送し、データ端末装
置２に設けられたランプ或いはディスプレイに、対向デ
ータ端末装置８の応答を表示させる。応答信号を受信し
たデータ端末装置２は、データ端末装置８との間でデー
タ通信を開始する。When the public telephone network 6 calls the data terminal device 8, and when the data terminal device 8 answers, it sends a response signal back to the central office line 5,
The central control unit 13 detects the response signal via the office line trunk 14, returns the response signal to the data terminal equipment 2 via the digital subscriber circuit 11, digital subscriber line 4 and digital interface W3, and transmits the data. The response from the opposing data terminal device 8 is displayed on the lamp or display provided on the terminal device 2. The data terminal device 2 that has received the response signal starts data communication with the data terminal device 8.
なお近年、文字形式の選択信号を受信可能とする、所謂
キャラクタダイヤル機能付変復調装置が使用されつつあ
る。キャラクタダイヤル機能付変復調装置は、接続設定
された後、発呼側および被呼側変復調装置間で通信速度
等の通信条件を確認した後、データ通信を開始する等の
優れた利点を具備している。In recent years, so-called character dialing modem devices that are capable of receiving selection signals in character format have come into use. The modem with character dial function has excellent advantages such as the ability to start data communication after confirming the communication speed and other communication conditions between the modem and modem on the calling and called sides after the connection is set up. There is.
例えばデータ端末装置２０が、この種のキャラクタダイ
ヤル機能付変復調装置（ＭＤ）２１を介してアナログ加
入者線２２に接続されるものとすると、データ端末装置
２０がデータ端末装置８にデータ通信を行う為に発呼し
、発呼識別文字（例えば「Ｃ」）、局線発信番号（ｒＯ
Ｊ）並びにデータ端末装置８の加入者番号（ｒ０４４−
７７７−ＩＩＩＩＪ）を文字形式で変復調装置２１に伝
達する。For example, if the data terminal device 20 is connected to the analog subscriber line 22 via this type of modem with character dial function (MD) 21, the data terminal device 20 performs data communication with the data terminal device 8. make a call, enter the caller identification character (e.g. "C"),
J) and the subscriber number of the data terminal device 8 (r044-
777-IIIJ) is transmitted to the modem 21 in character format.
発呼識別文字「Ｃ」、局線発信番号「０」および加入者
番号ｒ０４４−７７７−１１１１Ｊを受信した変復調装
置２１は発呼状態に設定され、受信した局線発信番号「
０」および加入者番号「０４１７７７−１１１１ｊをデ
ィジタル交換機１が受信可能な選択信号（例えばダイヤ
ルパルス信号）に変換し、アナログ加入者線２２に送出
する。The modem 21 that received the calling identification character "C", the local line calling number "0", and the subscriber number r044-777-1111J is set to the calling state, and the received local line calling number "0" is set to the calling state.
0'' and the subscriber number ``041777-1111j'' are converted into a selection signal (for example, a dial pulse signal) that can be received by the digital exchange 1 and sent to the analog subscriber line 22.
以後ディジタル交換機１が公知の方法でアナログ加入者
線２２を局線５に接続し、また公衆電話網６が公知の方
法でデータ端末装置８に着信接続した際、変復調装置７
がキャラクタダイヤル機能付きとすると、キャラクタダ
イヤル機能付変復調装置２１および７間で通信条件を設
定した後、データ端末装置２および８間で通信を開始す
る。Thereafter, when the digital exchange 1 connects the analog subscriber line 22 to the central office line 5 using a known method, and when the public telephone network 6 connects an incoming call to the data terminal device 8 using a known method, the modem 7
When the data terminal devices 2 and 8 are equipped with a character dial function, communication conditions are set between the modem devices 21 and 7 with the character dial function, and then communication is started between the data terminal devices 2 and 8.
かかるキャラクタダイヤル機能付変復調装置をモデムプ
ール１５内の変復調装置１５２として使用すると、デー
タ端末装置２からデータ端末装置８への発信接続過程に
おいて、変復調装置１５２には文字信号が全く入力され
ぬ為、変復調装Ｗ１５２は発呼状態に設定されず、デー
タ通信は不可能となる。When such a modem with a character dial function is used as the modem 152 in the modem pool 15, no character signal is input to the modem 152 during the outgoing connection process from the data terminal 2 to the data terminal 8. The modem W152 is not set to a calling state and data communication is disabled.
かかる解決策として、データ端末装置８とのデータ通信
を希望するデータ端末装置２が、モデムプール１５に接
続する為の特殊番号（例えば「１１１」）を選択し、中
央制御装置１３に空きモデムプール１５を選択・捕捉さ
せ、通話路網１２内に通話路ｐ２を設定させて、データ
端末装置２をモデムプール１５に接続させる。As such a solution, the data terminal device 2 that desires data communication with the data terminal device 8 selects a special number (for example, "111") for connecting to the modem pool 15, and the central control device 13 is assigned an empty modem pool. 15 is selected and captured, a communication path p2 is set within the communication path network 12, and the data terminal device 2 is connected to the modem pool 15.
次にデータ端末装置２が、発呼識別文字「Ｃ１に続いて
、局線発信番号「０」および被呼データ端末装置８の加
入者番号ｒ０４４−７７７−１１１１」を文字形式で送
出すると、発信識別文字「Ｃ」、並びに文字形式の局線
発信番号「０」および加入者番号ｒ０４４−７７７−１
１１１Ｊは、ディジタルインタフェース装置３、ディジ
タル加入者線４、ディジタル加入者回路１１、通話路網
１２内の通話路ｐ２、およびモデムプール１５内のディ
ジタルインタフェース部１５１を経由して、変復調装置
１５２に伝達される。Next, the data terminal device 2 sends the calling identification character "C1, followed by the central office line calling number '0' and the subscriber number r044-777-1111 of the called data terminal device 8" in character format. Identification letter “C”, central office line originating number “0” in letter form and subscriber number r044-777-1
111J is transmitted to the modulation/demodulation device 152 via the digital interface device 3, the digital subscriber line 4, the digital subscriber circuit 11, the communication path p2 in the communication path network 12, and the digital interface section 151 in the modem pool 15. be done.
発呼識別文字「Ｃ」、局線発信番号「０」および加入者
番号ｒ０４４−７７７−１１１１Ｊを受信した変復調装
置１５２は発呼状態に設定され、受信した局線発信番号
「０」および加入者番号ｒ０４４−７７７−１１１１Ｊ
をディジタル交換機１が受信可能な選択信号に変換し、
アナログインタフェース部１５３に送出する。The modem 152 that received the calling identification character "C", the central office line calling number "0", and the subscriber number r044-777-1111J is set to the calling state, and the received central line calling number "0" and the subscriber number are set to the calling state. Number r044-777-1111J
into a selection signal that can be received by the digital exchange 1,
It is sent to the analog interface section 153.
中央制御装置１３は、アナログインタフェース部１５３
が受信した局線発信番号「０」および加入者番号ｒ０４
４−７７７−１１１１Ｊを識別し、前述と同様の過程で
局線５へ発信接続し、公衆電話網６に被呼データ端末装
置８への接続を設定させる。The central control device 13 has an analog interface section 153.
received central office line calling number “0” and subscriber number r04
4-777-1111J is identified, an outgoing connection is made to the office line 5 in the same process as described above, and a connection to the called data terminal device 8 is established in the public telephone network 6.
以上の説明から明らかな如く、従来あるモデムプール起
動方式においては、発呼データ端末装置２は局線発信番
号「０」および加入者番号［０４４＝７７７−１１１１
Ｊの他に、モデムプール１５に接続する為の特殊番号ｒ
ｌ １１Ｊを選択する必要があり、操作性の低下を来す
恐れがあった。As is clear from the above explanation, in the conventional modem pool starting method, the calling data terminal device 2 has the central office line calling number "0" and the subscriber number [044=777-1111].
In addition to J, special number r for connecting to modem pool 15
It was necessary to select 11J, and there was a risk that operability would deteriorate.
第１図は本発明の原理を示す図である。 FIG. 1 is a diagram showing the principle of the present invention.
第１図において、１はディジタル交換機、２は第一のデ
ータ端末装置、１００は第一のデータ端末装置２をディ
ジタル回線に接続する第一のディジタル変換手段、８は
第二のデータ端末装置、７は第二のデータ端末装置８を
アナログ回線に接続する第一の変復調装置、１５２は第
一の変復調装置７が送受信する変調信号をデータ信号に
変換し、且つ文字信号を受信して発呼状態となる機能を
有する第二の変復調装置、２００は第一のディジタル変
換手段１００が送受信するディジタル信号をデータ信号
に変換する第二のディジタル変換手段、１５は第二のデ
ィジタル変換手段２００と、第二の変復調装置１５２と
を具備するモデムプールである。In FIG. 1, 1 is a digital exchange, 2 is a first data terminal device, 100 is a first digital conversion means for connecting the first data terminal device 2 to a digital line, 8 is a second data terminal device, 7 is a first modem that connects the second data terminal device 8 to an analog line; 152 is a device that converts the modulated signal transmitted and received by the first modem 7 into a data signal, and also receives a character signal and makes a call; 200 is a second digital conversion means that converts the digital signal transmitted and received by the first digital conversion means 100 into a data signal; 15 is a second digital conversion means 200; This is a modem pool comprising a second modem device 152.
３００は本発明により設けられた文字送出手段である。300 is a character sending means provided according to the present invention.
文字送出手段３００は、ディジタル交換機１が第一のデ
ータ端末装置２からモデムプール１５を介して第二のデ
ータ端末装置８に発信接続の際、モデムプール１５に予
め定められた文字信号を送出する。The character sending means 300 sends a predetermined character signal to the modem pool 15 when the digital exchange 1 makes an outgoing connection from the first data terminal device 2 to the second data terminal device 8 via the modem pool 15. .
その結果、文字送出手段３００から送出される文字信号
を受信したモデムプール１５内の第二の変復調装置１５
２は発呼状態に設定され、第一のデータ端末装置と第二
のデータ端末装置との間のデータ通信が可能となり、第
一のデータ端末装置に何等特殊の選択操作を行う必要が
無くなり、操作性が向上する。As a result, the second modem device 15 in the modem pool 15 that has received the character signal sent from the character sending means 300
2 is set to a calling state, data communication between the first data terminal device and the second data terminal device becomes possible, and there is no need to perform any special selection operation on the first data terminal device, Improves operability.
以下、本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第２図は本発明の一実施例によるモデムプール起動方式
を示す図である。なお、企図を通じて同一符号は同一対
象物を示す。またモデムプール（ＭＰ）１５内の変復調
装置（ＭＤ）１５２は、キャラクタダイヤル機能付きと
する。FIG. 2 is a diagram illustrating a modem pool activation method according to an embodiment of the present invention. Note that the same reference numerals refer to the same objects throughout the plan. Furthermore, the modem pool (MP) 15 has a modem device (MD) 152 equipped with a character dial function.
第２図においては、キャラクタ送出トランク（ＣＨＴ）
１６が、また中央制御装置（ＣＣ）１３内にモデムプー
ル起動部（ＭＳＴ）１３１が、文字送出手段３００とし
て設けられている。In Figure 2, the character transmission trunk (CHT)
16, and a modem pool starting section (MST) 131 is provided in the central control unit (CC) 13 as a character sending means 300.
第２図において、データ端末装置２がデータ端末装置８
に対し発呼し、局線発信番号（ｒＯＪ）、並びに公衆電
話網（ＴＮ）６に対するデータ端末装置８の加入者番号
（０４４−７７７−１１１１）を送出すると、ディジタ
ル交換機１の中央制御装置１３は、前述と同様に空き局
線トランク（ＣＢＴ）１４を選択・捕捉して局線５に対
し発信状態とし、加入者番号ｒ０４４−７７７−１１１
１」を局線５を経由して公衆電話網６に送出し、また空
きモデムプール１５を選択・捕捉すると共に、モデムプ
ール起動部１３１により通話路網（ＮＷ）１２内に通話
路ｐ３を設定し、キャラクタ送出トランク１６とモデム
プール１５とを接続した後、キャラクタ送出トランク１
６内の処理部（ＰＲ）１６１に起動信号を伝達する。In FIG. 2, data terminal device 2 is data terminal device 8.
When the central controller 13 of the digital exchange 1 makes a call and sends the central office number (rOJ) and the subscriber number (044-777-1111) of the data terminal device 8 to the public telephone network (TN) 6, selects and captures the vacant central office line trunk (CBT) 14 as described above, places it in a calling state for the central office line 5, and sends the subscriber number r044-777-111.
1'' to the public telephone network 6 via the central office line 5, selects and captures an empty modem pool 15, and sets a communication path p3 in the communication path network (NW) 12 by the modem pool activation unit 131. After connecting the character sending trunk 16 and the modem pool 15, the character sending trunk 1
The activation signal is transmitted to the processing unit (PR) 161 in 6.
起動信号を受信した処理部１６１は、組立部（ＡＳ）１
６３に送信要求信号Ｒ’Ｓを伝達すると共に、キャラク
タ発生部（ＣＧ）１６２を起動する。The processing unit 161 that received the activation signal assembles the assembly unit (AS) 1.
At the same time, the character generator (CG) 162 is activated.
キャラクタ発生部１６２は、変復調装置１５２を起動す
る為に予め定められた文字、例えば発呼識別文字ｒＣＪ
および数字「１」を示す信号を発生し、組立部１６３に
伝達する。The character generator 162 generates a predetermined character for activating the modem 152, for example, a call identification character rCJ.
and a signal indicating the number "1" is generated and transmitted to the assembly section 163.
組立部１６３は、処理部１６１から伝達された送信要求
信号Ｒ３、並びにキャラクタ発生部１６２から伝達され
た文字信号「Ｃ１」を、ディジタルインタフェース装Ｗ
３におけると同様のエンベロープに組立ててディジタル
信号に変換し、通話路網１２内の通話路ｐ３を経由して
モデムプール１５に伝達する。The assembly section 163 sends the transmission request signal R3 transmitted from the processing section 161 and the character signal "C1" transmitted from the character generation section 162 to the digital interface device W.
The signal is assembled into an envelope similar to that in 3, converted into a digital signal, and transmitted to the modem pool 15 via the communication path p3 in the communication path network 12.
モデムプール１５においては、ディジタルインタフェー
ス部（ＤＩ）１５１が通話路ｐ３から到着するディジタ
ル信号を、送信要求信号Ｒ３および文字信号「Ｃ１」に
変換し、変復調装置１５２に入力する。In the modem pool 15, a digital interface unit (DI) 151 converts the digital signal arriving from the communication path p3 into a transmission request signal R3 and a character signal "C1", and inputs them to the modulation/demodulation device 152.
送信要求信号Ｒ３に続いて文字信号「Ｃ１」を受信した
変復調装置１５２は発呼状態に設定され、文字信号「１
」を選択信号に変換してアナログインタフェース部（Ａ
Ｉ）１５３に伝達するが、アナログインタフェース部１
５３は受信した選択信号を無視する。The modem 152, which received the character signal "C1" following the transmission request signal R3, is set to the calling state and transmits the character signal "1".
” into a selection signal and sends it to the analog interface section (A
I) 153, but the analog interface section 1
53 ignores the received selection signal.
その間中央制御装置１３は、通話路網１２内に通話路ｐ
１およびｐ２を設定し、モデムプール１５をディジタル
加入者線４および局線５に接続する。During this time, the central control unit 13 controls the communication path p in the communication path network 12.
1 and p2 to connect the modem pool 15 to the digital subscriber line 4 and the office line 5.
公衆電話網６がデータ端末装置８を呼出し、データ端末
装置８が応答した際に、変復調装置７が通信条件を確認
可能であれば、変復調装置１５２との間で通信条件が確
認され、データ端末装置８の応答によりデータ端末装置
２との間でデータ通信が開始される。When the public telephone network 6 calls the data terminal device 8 and the data terminal device 8 responds, if the modem 7 can confirm the communication conditions, the communication conditions are confirmed with the modem 152 and the data terminal Data communication with the data terminal device 2 is started in response to the response from the device 8 .
以上の説明から明らかな如く、本実施例によれば、中央
制御装置１３は、モデムプール１５を経由する通話路ｐ
１およびｐ２を設定するに先立ち、キャラクタ送出トラ
ンク１６をモデムプール１５に接続し、所定の文字信号
「Ｃ１」をモデムプール１５に伝達させる為、モデムプ
ール１５内の変復調装置１５２は発呼状態に設定され、
データ端末装置２は、局線発信番号および被呼加入者番
号以外に何等特殊番号を選択すること無く、被呼データ
端末装置８とデータ通信が開始可能となる。As is clear from the above description, according to this embodiment, the central control unit 13 controls the communication path p via the modem pool 15.
1 and p2, the character sending trunk 16 is connected to the modem pool 15, and in order to transmit a predetermined character signal "C1" to the modem pool 15, the modem 152 in the modem pool 15 is placed in a calling state. set,
The data terminal device 2 can start data communication with the called data terminal device 8 without selecting any special number other than the central office line originating number and the called subscriber number.
なお、第２図はあく迄本発明の一実施例に過ぎず、例え
ばデータ端末装置８は公衆電話網６に収容されるものに
限定されることは無く、他に幾多の変形が考慮されるが
、何れの場合にも本発明の効果は変わらない。Note that FIG. 2 is only one embodiment of the present invention, and for example, the data terminal device 8 is not limited to one that is accommodated in the public telephone network 6, and many other modifications may be considered. However, the effects of the present invention remain the same in either case.
以上、本発明によれば、前記ディジタル交換機において
、文字送出手段から送出される文字信号を受信したモデ
ムプール内の第二の変復調装置は発呼状態に設定され、
第一のデータ端末装置と第二のデータ端末装置との間の
データ通信が可能となり、第一のデータ端末装置に何等
特殊の選択操作を行う必要が無くなり、操作性が向上す
る。As described above, according to the present invention, in the digital exchange, the second modem in the modem pool that has received the character signal sent from the character sending means is set to the calling state,
Data communication between the first data terminal device and the second data terminal device becomes possible, and there is no need to perform any special selection operation on the first data terminal device, improving operability.
第１図は本発明の原理を示す図、第２図は本発明の一実
施例によるモデムプール起動方式を示す図、第３図は従
来あるモデムプール起動方式の一例を示す図である。FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing a modem pool starting method according to an embodiment of the present invention, and FIG. 3 is a diagram showing an example of a conventional modem pool starting method.
Claims (1)
る第一のディジタル変換手段（１００）が送受信するデ
ィジタル信号を、前記データ端末装置（２）が送受信す
るデータ信号に変換する第二のディジタル変換手段（２
００）と、第二のデータ端末装置（８）をアナログ回線
に接続する第一の変復調装置（７）が送受信するアナロ
グ変調信号を、前記データ信号に変換し、且つ文字信号
を受信して発呼状態となる機能を有する第二の変復調装
置（１５２）とを有するモデムプール（１５）を具備す
るディジタル交換機（１）において、前記第一のデータ
端末装置（２）から前記モデムプール（１５）を介して
前記第二のデータ端末装置（８）に発信接続の際、前記
モデムプール（１５）に予め定められた文字信号を送出
する文字送出手段（３００）を設け、 該文字送出手段（３００）から送出される前記文字信号
を受信した前記モデムプール（１５）内の前記第二の変
復調装置（１５２）を発呼状態に設定させることを特徴
とするモデムプール起動方式。[Claims] A digital signal transmitted and received by a first digital conversion means (100) that connects a first data terminal device (2) to a digital line is converted into a data signal transmitted and received by the data terminal device (2). A second digital conversion means (2
00) and the first modulation/demodulation device (7) that connects the second data terminal device (8) to the analog line converts the analog modulated signal transmitted and received into the data signal, and also receives the character signal and issues it. In a digital exchange (1) comprising a modem pool (15) having a second modem device (152) having a function of establishing a call state, the first data terminal device (2) to the modem pool (15) A character sending means (300) is provided for sending a predetermined character signal to the modem pool (15) when making an outgoing connection to the second data terminal device (8) via the character sending means (300). ) The modem pool activation method is characterized in that the second modem device (152) in the modem pool (15) that has received the character signal sent from the modem pool (15) is set to a calling state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22275586A JPH0738645B2 (en) | 1986-09-19 | 1986-09-19 | Modem pool startup method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22275586A JPH0738645B2 (en) | 1986-09-19 | 1986-09-19 | Modem pool startup method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6376648A true JPS6376648A (en) | 1988-04-06 |
| JPH0738645B2 JPH0738645B2 (en) | 1995-04-26 |
Family
ID=16787400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22275586A Expired - Lifetime JPH0738645B2 (en) | 1986-09-19 | 1986-09-19 | Modem pool startup method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738645B2 (en) |
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|---|---|---|---|---|
| US5668857A (en) * | 1996-03-29 | 1997-09-16 | Netspeed, Inc. | Communication server apparatus and method |
| US5781617A (en) * | 1996-03-29 | 1998-07-14 | Netspeed, Inc. | Communication server apparatus using frequency multiplexing and method |
| US5852655A (en) * | 1996-03-29 | 1998-12-22 | Cisco Systems, Inc. | Communication server apparatus having distributed switching and method |
| US5898761A (en) * | 1996-03-29 | 1999-04-27 | Cisco Technology, Inc. | Communication server apparatus using digital signal switching and method |
| US5905781A (en) * | 1996-03-29 | 1999-05-18 | Cisco Technology, Inc. | Communication server apparatus and method |
| US5999565A (en) * | 1997-10-15 | 1999-12-07 | Cisco Technology, Inc. | Data communication using a modifiable number of XDSL modems |
| US5999540A (en) * | 1998-12-22 | 1999-12-07 | Cisco Technology, Inc. | Rate adaptive XDSL communication system and method |
| US6014431A (en) * | 1996-03-29 | 2000-01-11 | Cisco Technology, Inc. | Communication server apparatus having four-wire switching interface and method |
| US6115226A (en) * | 1998-12-07 | 2000-09-05 | Cisco Technology, Inc. | Apparatus for lightning strike survivability and post-strike operability |
| US6161161A (en) * | 1999-01-08 | 2000-12-12 | Cisco Technology, Inc. | System and method for coupling a local bus to a peripheral component interconnect (PCI) bus |
| US6160843A (en) * | 1996-03-29 | 2000-12-12 | Cisco Technology, Inc. | Communication server apparatus providing XDSL services and method |
| US6181572B1 (en) | 1998-06-19 | 2001-01-30 | Cisco Technology, Inc. | Digital subscriber line (xDSL) modem having a multi-layer electromagnetic shield and method of manufacture |
| US6239672B1 (en) | 1998-06-29 | 2001-05-29 | Cisco Technology, Inc. | Wall mount filter for a digital subscriber line (xDSL) network and methods of installation and manufacture |
| US6385203B2 (en) | 1996-03-29 | 2002-05-07 | Cisco Technology, Inc. | Communication server apparatus and method |
| US6553075B1 (en) | 1999-01-12 | 2003-04-22 | Cisco Technology, Inc. | Method and apparatus for determining crosstalk |
| US6658049B1 (en) | 1999-01-12 | 2003-12-02 | Cisco Technology, Inc. | xDSL repeater system and method |
| US7020164B1 (en) | 1998-11-30 | 2006-03-28 | Cisco Technology, Inc. | System and method for special signaling with customer premises equipment |
| US7181504B1 (en) | 1999-09-27 | 2007-02-20 | Cisco Technology, Inc. | System and method for selecting a modem for service |
-
1986
- 1986-09-19 JP JP22275586A patent/JPH0738645B2/en not_active Expired - Lifetime
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|---|---|---|---|---|
| US6870834B1 (en) | 1996-03-29 | 2005-03-22 | Cisco Technology, Inc. | Communication server apparatus providing XDSL services and method |
| US5781617A (en) * | 1996-03-29 | 1998-07-14 | Netspeed, Inc. | Communication server apparatus using frequency multiplexing and method |
| US5852655A (en) * | 1996-03-29 | 1998-12-22 | Cisco Systems, Inc. | Communication server apparatus having distributed switching and method |
| US5898761A (en) * | 1996-03-29 | 1999-04-27 | Cisco Technology, Inc. | Communication server apparatus using digital signal switching and method |
| US5905781A (en) * | 1996-03-29 | 1999-05-18 | Cisco Technology, Inc. | Communication server apparatus and method |
| US8116298B2 (en) | 1996-03-29 | 2012-02-14 | Cisco Technology, Inc. | Communication server apparatus providing XDSL services and method |
| US6282273B1 (en) | 1996-03-29 | 2001-08-28 | Cisco Technology, Inc. | Communication server apparatus using frequency multiplexing and method |
| US6014431A (en) * | 1996-03-29 | 2000-01-11 | Cisco Technology, Inc. | Communication server apparatus having four-wire switching interface and method |
| US6088430A (en) * | 1996-03-29 | 2000-07-11 | Cisco Technology, Inc. | Communication server apparatus and method |
| US5668857A (en) * | 1996-03-29 | 1997-09-16 | Netspeed, Inc. | Communication server apparatus and method |
| US6385203B2 (en) | 1996-03-29 | 2002-05-07 | Cisco Technology, Inc. | Communication server apparatus and method |
| US6160843A (en) * | 1996-03-29 | 2000-12-12 | Cisco Technology, Inc. | Communication server apparatus providing XDSL services and method |
| US6169788B1 (en) | 1996-03-29 | 2001-01-02 | Cisco Technology, Inc. | Communication server apparatus having distributed switching and method |
| US6483870B1 (en) | 1997-10-15 | 2002-11-19 | Cisco Technology, Inc. | Data communication using a modifiable number of XDSL modems |
| US5999565A (en) * | 1997-10-15 | 1999-12-07 | Cisco Technology, Inc. | Data communication using a modifiable number of XDSL modems |
| US6181572B1 (en) | 1998-06-19 | 2001-01-30 | Cisco Technology, Inc. | Digital subscriber line (xDSL) modem having a multi-layer electromagnetic shield and method of manufacture |
| US6239672B1 (en) | 1998-06-29 | 2001-05-29 | Cisco Technology, Inc. | Wall mount filter for a digital subscriber line (xDSL) network and methods of installation and manufacture |
| US7020164B1 (en) | 1998-11-30 | 2006-03-28 | Cisco Technology, Inc. | System and method for special signaling with customer premises equipment |
| US6115226A (en) * | 1998-12-07 | 2000-09-05 | Cisco Technology, Inc. | Apparatus for lightning strike survivability and post-strike operability |
| US6389065B1 (en) | 1998-12-22 | 2002-05-14 | Cisco Technology Inc. | Rate adaptive XDSL communication system and method |
| US5999540A (en) * | 1998-12-22 | 1999-12-07 | Cisco Technology, Inc. | Rate adaptive XDSL communication system and method |
| US6161161A (en) * | 1999-01-08 | 2000-12-12 | Cisco Technology, Inc. | System and method for coupling a local bus to a peripheral component interconnect (PCI) bus |
| US6553075B1 (en) | 1999-01-12 | 2003-04-22 | Cisco Technology, Inc. | Method and apparatus for determining crosstalk |
| US6658049B1 (en) | 1999-01-12 | 2003-12-02 | Cisco Technology, Inc. | xDSL repeater system and method |
| US7181504B1 (en) | 1999-09-27 | 2007-02-20 | Cisco Technology, Inc. | System and method for selecting a modem for service |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0738645B2 (en) | 1995-04-26 |
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