JP3050800U - Line switching device for the service - Google Patents
Line switching device for the serviceInfo
- Publication number
- JP3050800U JP3050800U JP1998000443U JP44398U JP3050800U JP 3050800 U JP3050800 U JP 3050800U JP 1998000443 U JP1998000443 U JP 1998000443U JP 44398 U JP44398 U JP 44398U JP 3050800 U JP3050800 U JP 3050800U
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- Prior art keywords
- terminal
- polarity
- line
- detection circuit
- circuit
- Prior art date
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Abstract
(57)【要約】
【課題】１本の回線に複数の端末接続選択呼出できる，
ＮＴＴ「なりわけサービス」用の回線切替装置を提供す
ること。
【解決手段】加入回線接続用の１対の局線端子６，端子
機器９，１０の接続用２対端末端子７，８，該局線端子
極性検出用の回線極性検出回路１，これに到来する極性
反転信号を検出し該端末端子を切り離す接続回路３，該
局線端子に到来する呼出信号検出の呼出信号種別検出回
路２，これによる検出信号をサンプリングする手段，呼
出信号種別に応じて，該局線端子と２対端末端子のいず
れかを接続する選択手段，極性反転時の呼出信号種別非
到来時の極性認識自動修正手段，該端末端子のループ閉
成を個別検出用ループ検出回路４とを備えた事を特徴と
する，「なりわけサービス」用の回線切替装置を確保す
る。
(57) [Summary] [PROBLEMS] A plurality of terminal connection selective calls can be made on one line.
To provide a line switching device for NTT "Narisei Service". Kind Code: A1 A pair of local line terminals for connecting a subscribed line, two pairs of terminal terminals for connecting terminal equipment, and a line polarity detecting circuit for detecting the local line terminal polarity. A connection circuit for detecting a polarity inversion signal to be disconnected and disconnecting the terminal terminal; a paging signal type detection circuit for detecting a paging signal arriving at the local line terminal; a means for sampling a detection signal thereby; Selecting means for connecting the station line terminal to one of the two pairs of terminal terminals; automatic polarity correction means for recognizing the polarity when the calling signal type does not arrive when the polarity is inverted; A line switching device for "Nari-serial service", characterized by having the above features, is secured.
Description
【０００１】[0001]
本考案は，ＮＴＴ「なりわけサービス」を利用した電話加入者回線の端末側に 利用し，一つの加入者回線に２種類の呼出信号が送出される該「なりわけサービ ス」を用い，二つの端末機器を接続して選択呼出を行う技術に関する。 The present invention uses the “Nari-Nari-Sari Service”, which is used for the terminal side of a telephone subscriber line using NTT “Nari-Nari-Sari Service” and sends two types of call signals to one subscriber line. The present invention relates to a technique for connecting two terminal devices to make a selective call.
【０００２】[0002]
従来から，ＰＢＸ等に組み込んで公衆回線からの着信と，ＰＢＸ内線からの着 信信号をその呼出信号種別の種類により切り換える方式が行われてきた。これら は，公衆回線からの呼出信号が一種類であるため，ＰＢＸ等に呼出信号発生回路 を有してその発生回路からの信号，または回線からの信号を切り換えて，ＰＢＸ に接続された端末器のみを制御対象にしたものであった。 Conventionally, there has been a method in which a PBX or the like is installed to switch between an incoming call from a public line and an incoming signal from a PBX extension depending on the type of call signal. Since these are only one kind of call signal from the public line, the PBX or the like has a call signal generation circuit and switches the signal from the generation circuit or the signal from the line to connect the terminal equipment connected to the PBX. Only the control target.
【０００３】 平成９年７月からＮＴＴの「なりわけサービス」が開始され，一般の加入者回 線に対しても二種類の呼出信号を受信することが可能になった。これまでは，ダ イヤルイン方式により発信者側が着信させる端末を指定呼出することは可能であ ったが，このサ─ビスを利用すると着信者側が発信者側の電話番号を指定して呼 出信号を選択する事が出来る。[0003] In July 1997, NTT's "Nariwari Service" was started, and it became possible to receive two types of call signals even for general subscriber lines. Until now, it was possible to use the dial-in method to call a terminal to be called by the caller, but this service allows the callee to specify the telephone number of the caller and make a call signal. Can be selected.
【０００４】[0004]
昨今では，一つの家庭に電話端末器が複数個設けられる事は珍しくなく，これ は家庭用ファクシミリやパーソナルコンピュータによる情報通信の普及による事 が大きく，上記「なりわけサービス」を契約しただけでは，一つの回線に接続さ れた端末器の呼び出しを個別に行うことが出来なく，また呼出種類が異なっても ，回線に接続されている端末器すべてに，その呼出信号が到来するため，どの端 末器に対する呼出信号であるのか確定することは不可能であり，これは利用者に とっては煩わしい問題点を有していた。 In recent years, it is not uncommon for a single home to have multiple telephone terminals, and this is largely due to the spread of information communication using home facsimile machines and personal computers. It is not possible to individually call a terminal connected to one line, and even if the type of call is different, since the call signal arrives at all terminals connected to the line, It was impossible to determine whether it was a call signal to the terminal, and this had a problem that was troublesome for the user.
【０００５】[0005]
上記の問題点を解決するために，本考案の「なりわけサービス」用の回線切替 装置は，「なりわけサービス」の呼出信号の違いを利用して， 呼出信号，局線電源について全て回線からのものを使用し， 呼出信号種別の到来を極性反転により事前に検出して，接続端末機器のチン鳴 りを防ぎ，指定された着信端末以外へ呼出信号の接続を阻止し， 一つの端末機器が加入者回線と接続されている間は，他の端末器のオフ・フッ クを禁止できる事を特徴とする。 In order to solve the above-mentioned problems, the line switching device for the “Nariwake service” of the present invention takes advantage of the difference in the call signal of the “Nariwake service” to make all call signals and station power from the line. Detects the arrival of the ringing signal type in advance by reversing the polarity, prevents the ping of the connected terminal equipment, and prevents the connection of the ringing signal to a terminal other than the designated receiving terminal. The feature is that off-hook of other terminals can be prohibited while is connected to the subscriber line.
【０００６】[0006]
本考案の「なりわけサービス」用の回線切替装置は，加入者回線が接続される 一対の局線端子と，それぞれ端子機器が接続される二対の端末端子と，該局線端 子の極性を検出する回線極性検出回路と，該極性検出回路に到来する極性反転信 号を検出して該端末端子を切り離すスイッチからなる接続回路と，該局線端子に 到来する呼出信号を検出する呼出信号種別検出回路と，該呼出信号種別検出回路 により検出された信号をサンプリングする手段と，呼出信号種別に応じて，該局 線端子と二対の端末端子のいずれかを接続する選択手段と，極性反転時の呼出信 号種別非到来時の極性認識自動修正手段と，該端末端子のループ閉成を個別に検 出するループ検出回路とを備えた事を特徴とする。 The line switching device for the "Nari-Serial Service" of the present invention consists of a pair of central office terminals to which subscriber lines are connected, two pairs of terminal terminals each to which terminal equipment is connected, and the polarity of the central office terminals. A connection circuit comprising a switch for detecting a polarity inversion signal arriving at the polarity detection circuit and disconnecting the terminal terminal, and a call signal for detecting a call signal arriving at the local line terminal. A type detection circuit, means for sampling the signal detected by the paging signal type detection circuit, selection means for connecting the local terminal or one of the two pairs of terminal terminals according to the type of the paging signal, It is characterized in that it comprises means for automatically correcting the polarity recognition when the call signal type does not arrive at the time of reversal, and a loop detection circuit for individually detecting the loop closure of the terminal terminal.
【０００７】 本考案の「なりわけサービス」用の回線切替装置は，上記回線極性検出回路， 呼出信号種別検出回路，接続回路及びループ検出回路の情報を取り込み，該接続 回路を制御するプログラム制御手段を含む制御回路を備え，該制御回路は，該回 線極性検出回路が検出した極性情報と予め取得した極性情報とを比較し，接続端 末を切り離す該接続回路に切替信号を送出する手段を含み，該接続回路は接点リ レーにより構成され，上記端末端子と局線端子との間に該接点リレーが介挿され ，該制御回路は，上記二対の接続端子と，該局線端子の接続を切り離し，上記選 択手段により選択された該接点リレーを閉塞状態とする手段を含み，上記極性認 識自動修正手段を含む事を特徴とする。[0007] The line switching device for the "Narikari service" of the present invention is a program control means for fetching information of the line polarity detection circuit, the call signal type detection circuit, the connection circuit and the loop detection circuit, and controlling the connection circuit. The control circuit includes means for comparing the polarity information detected by the circuit polarity detection circuit with the previously acquired polarity information and transmitting a switching signal to the connection circuit for disconnecting the connection terminal. The connection circuit is constituted by a contact relay, the contact relay is interposed between the terminal terminal and the office terminal, and the control circuit comprises the two pairs of connection terminals and the office terminal. The present invention is characterized in that it includes means for disconnecting the connection and closing the contact relay selected by the selection means, and includes the polarity recognition automatic correction means.
【０００８】 本考案の「なりわけサービス」用の回線切替装置は，前記極性検出回路，接点 リレー及び制御回路は，呼出信号到来による，端末端子に接続された呼出目的外 端末機器への呼出信号送出，及び接続端末機器の「チン鳴り」を阻止する手段を 含む事も出来る。[0008] In the line switching device for the "Narikari service" of the present invention, the polarity detection circuit, the contact relay, and the control circuit are arranged so that, when a call signal arrives, a call signal to a non-call purpose terminal device connected to a terminal terminal. It can also include means to prevent transmission and “tingling” of connected equipment.
【０００９】 本考案の「なりわけサービス」用の回線切替装置は，前記極性検出回路と制御 回路は，呼出信号以外に到来する可能性のある極性反転状態について，該制御回 路による情報補正手段をも含む事も出来る。[0009] In the line switching device for the "Narikari service" of the present invention, the polarity detection circuit and the control circuit are provided with information correction means for the polarity inversion state which may arrive other than the calling signal by the control circuit. Can also be included.
【００１０】 本考案の「なりわけサービス」用の回線切替装置において，局線端子から認識 できる回線極性は，呼出信号種別非到来時においても極性が反転し，該極性が通 常の極性状態になる可能性を有しており，この場合，早急にその極性を呼出信号 非到来時の極性と認識して，呼出信号到来時の極性検出に備えておくことも出来 る。[0010] In the line switching device for the "Narikari service" of the present invention, the line polarity recognizable from the line terminal is inverted even when the call signal type does not arrive, and the polarity is changed to the normal polarity state. In this case, the polarity can be immediately recognized as the polarity when the call signal does not arrive, and the polarity can be detected when the call signal arrives.
【００１１】 本考案の「なりわけサービス」用の回線切替装置において，呼出信号非到来時 の極性を通常の極性とみなす，極性認識自動修正手順を含む事も出来る。[0011] In the line switching device for the "Narikari service" of the present invention, it is possible to include a polarity recognition automatic correction procedure in which the polarity when a call signal does not arrive is regarded as a normal polarity.
【００１２】 本考案の「なりわけサービス」用の回線切替装置において，発信時には，局線 端子に接続された他の端末機器を，局線から切り離しておくことも出来る。[0012] In the line switching device for the "Narikari service" of the present invention, at the time of calling, other terminal equipment connected to the office line terminal can be disconnected from the office line.
【００１３】 本考案の「なりわけサービス」用の回線切替装置において，局線から局電源， 呼出信号を供給して回線切替を行う場合は，回線極性の変化を素早く検出して， 接続端末器の「チン鳴り」を阻止する事も出来る。[0013] In the line switching device for the "Narikari service" of the present invention, when the line switching is performed by supplying the station power and the calling signal from the station line, the change of the line polarity is quickly detected and the connection terminal is connected. You can also block the "chin squeal".
【００１４】 本考案の「なりわけサービス」用の回線切替装置において，待機中は，加入者 回線と各端末機器は接点リレーを通じて接続されており，発信意志のある端末は オフ・フックすることで，即座に発信動作を行う事も出来る。[0014] In the line switching device for the "Nari-serial service" of the present invention, during standby, the subscriber line and each terminal device are connected through a contact relay, and the terminal that intends to transmit is turned off-hook. In addition, it is possible to immediately perform a transmission operation.
【００１５】 本考案の「なりわけサービス」用の回線切替装置において，端末機器が使用中 であることを，その接続端子の状態表示をすると共に，他の接続端子の接点リレ ーを解放するため，秘話機能が働き，通信の妨害を受けることがなくなる。[0015] In the line switching device for the "Narikari service" of the present invention, the terminal device is used to indicate the status of the connection terminal and to release the contact relay of the other connection terminal. , The confidential function is activated and communication is not interrupted.
【００１６】 本考案の「なりわけサービス」用の回線切替装置において，極性認識自動修正 を設けることにより，加入者回線と装置局線端子の接続時の回線極性確認が不要 となり，誤って極線の回線極性が反転した場合でも，誤動作を防ぐ事も出来る。[0016] In the line switching device for the "Narikari service" of the present invention, by providing automatic polarity recognition correction, it is not necessary to check the line polarity when connecting the subscriber line and the device office line terminal. Even if the line polarity is reversed, malfunction can be prevented.
【００１７】[0017]
この考案の実施例を示す図面において，図１は「なりわけサービス」用の回線 切替装置のブロック構成図，図２は着信動作を示すフローチャート，図３は発信 動作を示すフローチャート，そして図４は構成図である。 In the drawings showing an embodiment of the present invention, FIG. 1 is a block diagram of a line switching device for the “Narikari service”, FIG. 2 is a flowchart showing an incoming operation, FIG. 3 is a flowchart showing an outgoing operation, and FIG. It is a block diagram.
【００１８】 この考案の実施例を図面を参照して以下説明すると，図１及び図４に示すよう に，加入者回線Ｌ１，Ｌ２が接続される一対の局線端子（６）と，それぞれ端末 機器（９，１０）が接続される二対の端末端子（７，８）と，該局線端子の極性 を検出する回線極性検出回路（１）と，該回線極性検出回路の検出出力により加 入者回線Ｌ１，Ｌ２と該端末端子との接続を切り離す接続回路（３）と，この呼 出信号種別検出回路（２）の検出出力により予め接続先が規定された該端末端子 と，該局線端子の接続制御を行う制御回路（５）を備えた「なりわけサービス」 用の回線切替装置である。An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 4, a pair of central office terminals (6) to which subscriber lines L1 and L2 are connected, and a terminal respectively. Two pairs of terminal terminals (7, 8) to which the devices (9, 10) are connected, a line polarity detection circuit (1) for detecting the polarity of the local line terminal, and a detection output of the line polarity detection circuit. A connection circuit (3) for disconnecting the connection between the incoming lines L1 and L2 and the terminal terminal, the terminal terminal whose connection destination is specified in advance by the detection output of the call signal type detection circuit (2); This is a line switching device for the "Nari-Sari service", which has a control circuit (5) that controls the connection of line terminals.
【００１９】 上記，本考案の「なりわけサービス」用の回線切替装置において，回線極性検 出回路（１），呼出信号種別検出回路（２），接続回路（３），及びループ検出 回路（４）の情報を取り込み，該接続回路を制御するプログラム制御手段を含む 制御回路（５）を備え，該制御回路は，該回線極性検出回路が検出した極性情報 と予め取得した極性情報とを比較し，端末機器（９，１０）を切り離す該接続回 路に切替信号を送出する手段を含み，該接続回路は接点リレーにより構成され， 端末端子（７，８）と局線端子（６）との間には接点リレーが介挿され，該制御 回路は，二対の該端末端子と，該局線端子の接続を切り離し，選択手段により選 択された接点リレーを閉塞状態とする手段を含み，極性認識情報自動修正手段を 含む事を特徴とする。In the above-described line switching device for the “Nari-separation service” of the present invention, the line polarity detection circuit (1), the call signal type detection circuit (2), the connection circuit (3), and the loop detection circuit (4) ), And a control circuit (5) including program control means for controlling the connection circuit. The control circuit compares the polarity information detected by the line polarity detection circuit with the polarity information acquired in advance. And means for transmitting a switching signal to the connection circuit for disconnecting the terminal equipment (9, 10), the connection circuit being constituted by a contact relay, and connecting the terminal terminal (7, 8) to the central line terminal (6). A contact relay is interposed therebetween, and the control circuit includes means for disconnecting the connection between the two pairs of the terminal terminals and the central line terminal and closing the contact relay selected by the selection means. Includes automatic polarity recognition information correction means It is characterized by
【００２０】 図２を参照して本考案の「なりわけサービス」用の回線切替装置における，着 信動作を説明する。加入者回線から回線極性反転信号が到来すると，回線極性検 出回路（１）がこれを検出する（Ｓ１）。接続回路（３）が局線端子（６）と端 末端子（７，８）との接続を切り離す（Ｓ２）。回線極性反転に続いて，規定時 間内に呼出信号が送出されてくるかどうかを判定するためのタイマーをセットし て（Ｓ３），呼出信号種別検出回路（２）により，その到来を監視する（Ｓ４） 。With reference to FIG. 2, the incoming operation in the line switching device for the “Narikari service” of the present invention will be described. When the line polarity inversion signal arrives from the subscriber line, the line polarity detection circuit (1) detects this (S1). The connection circuit (3) disconnects the connection between the local line terminal (6) and the terminals (7, 8) (S2). Following the inversion of the line polarity, a timer is set to determine whether a call signal is sent within a specified time (S3), and the arrival is monitored by a call signal type detection circuit (2). (S4).
【００２１】 次に，呼出信号の到来を検出すると信号種別の判定を行い（Ｓ５），その判定 に基づいて，端末機器（９，１０）のいずれかの一つと局線端子（６）を接続す る通信パスを接続回路（３）により生成する（Ｓ７）。これにより，該局線端子 と接続回路を介して接続された該端末機器のいずれか一つに対して，加入者回線 からの呼出信号が送出される。Next, when the arrival of the call signal is detected, the signal type is determined (S5), and one of the terminal devices (9, 10) is connected to the central office terminal (6) based on the determination. A communication path is generated by the connection circuit (3) (S7). As a result, a calling signal from the subscriber line is sent to one of the terminal devices connected to the central office terminal via the connection circuit.
【００２２】 ここで，呼び出された端末機器（９，１０）がオフ・フックされず，発信者側 が呼び出しを放棄すると回線極性が復極し，それを回線極性検出回路（１）が検 出し（Ｓ９），全端末端子を局線端子（６）に接続する（Ｓ１４）。Here, if the called terminal devices (9, 10) are not off-hook and the caller abandons the call, the line polarity is reversed, and the line polarity detection circuit (1) detects it. (S9), all terminal terminals are connected to the central office terminal (6) (S14).
【００２３】 ここで，呼出信号が到来しない場合は（Ｓ６），加入者回線からの呼び出しが なかったものとし回線極性情報を修正し（Ｓ１３），接続回路（３）を閉じて端 末端子（７，８）を局線端子（６）に接続する（Ｓ１４）。Here, if the call signal does not arrive (S6), it is assumed that there is no call from the subscriber line, the line polarity information is corrected (S13), the connection circuit (3) is closed, and the terminal ( 7, 8) are connected to the local line terminal (6) (S14).
【００２４】 次に，呼び出された端末機器（９，１０）がオフ・フックされると（Ｓ８）， ループ検出回路（４）がこれを検出し，制御回路（５）は該端末機器が通信状態 になったことを認識する（Ｓ１０）。該端末機器のオン・フックで 通信パスが 解放されると，全端末端子を局線端子（６）に接続する（Ｓ１４）。Next, when the called terminal device (9, 10) is off-hook (S8), the loop detection circuit (4) detects this and the control circuit (5) communicates with the terminal device. It is recognized that the state has been reached (S10). When the communication path is released by the on-hook of the terminal device, all terminal terminals are connected to the central office terminal (6) (S14).
【００２５】 図３を参照して，本考案の「なりわけサービス」用の回線切替装置における， 発信動作を説明する。端末機器（９，１０）のオン・フックがループ検出回路（ ４）により検出されると（Ｓ１），制御回路（５）は，オン・フック側端末器の 加入者回線への接続を切り離す（Ｓ２）。発信側端末器の通信状態が終了し（Ｓ ３），オン・フックが検出されると（Ｓ４），切り離していた端末器を加入者回 線に接続する（Ｓ５）。With reference to FIG. 3, a description will be given of a calling operation in the line switching device for the “Narikari service” of the present invention. When the on-hook of the terminal equipment (9, 10) is detected by the loop detection circuit (4) (S1), the control circuit (5) disconnects the connection of the on-hook side terminal equipment to the subscriber line ( S2). When the communication state of the calling terminal is terminated (S3) and an on-hook is detected (S4), the disconnected terminal is connected to the subscriber's line (S5).
【００２６】[0026]
本考案は，以上説明した様な形態で実施され，以下に記載される様な効果を有 する。 The present invention is implemented in the form described above, and has the following effects.
【００２７】 本考案の「なりわけサービス」用の回線切替装置を用いることにより，局電源 及び呼出信号の全てを加入者回線から供給することによる切替え制御を使用し， 一つの回線に接続された複数の端末器の呼び出しを，個別に行う効果を有する。[0027] By using the line switching device for the "Narikari service" of the present invention, switching control by supplying all of the station power and the calling signal from the subscriber line is used, and the line is connected to one line. This has the effect of calling a plurality of terminals individually.
【００２８】 本考案の「なりわけサービス」用の回線切替装置を用いることにより，一つの 回線に接続された複数の端末器の呼び出しを，どの端末器に対する呼出信号であ るのかを確定する事も出来る。[0028] By using the line switching device for the "Narikari service" of the present invention, it is possible to determine to which terminal a calling signal of a plurality of terminals connected to one line is a calling signal. You can also.
【００２９】 本考案の「なりわけサービス」用の回線切替装置を用いることにより，呼出信 号到来による，端末端子に接続された呼出目的外端末機器への呼出信号送出，及 び接続端末機器の「チン鳴り」を阻止する事も出来る。[0029] By using the line switching device for the "Narikari service" of the present invention, a call signal is transmitted to a terminal device other than the call purpose connected to the terminal terminal when the call signal arrives, and the connection terminal device is connected. You can also prevent "chumbling".
【００３０】 本考案の「なりわけサービス」用の回線切替装置を用いることにより，端末機 器が使用中であることを，その接続端子の状態表示をすると共に，秘話機能が働 き，通信の妨害を受けることがなくなる。[0030] By using the line switching device for the "Narikari service" of the present invention, it is possible to indicate that the terminal device is in use, to display the status of the connection terminal thereof, to activate the confidential function, and to enable communication. You will not be disturbed.
【００３１】 本考案の「なりわけサービス」用の回線切替装置を用いることにより，極性認 識自動修正を設け，誤って局線の回線極性が反転した場合でも，誤動作を防ぐ事 も出来る。[0031] By using the line switching device for the "Narikari service" of the present invention, automatic polarity recognition correction can be provided, and malfunction can be prevented even if the line polarity of the office line is reversed by mistake.
【図１】この考案の実施例を示す，「なりわけサービ
ス」用の回線切替装置のブロック構成図。FIG. 1 is a block diagram of an embodiment of the present invention, which is a line switching device for “Narikari service”.
【図２】この考案の実施例を示す，「なりわけサービ
ス」用の回線切替装置における，着信動作を示すフロー
チャート。FIG. 2 is a flowchart showing an incoming call operation in the line switching device for “Narikari service”, showing an embodiment of the present invention.
【図３】この考案の実施例を示す，「なりわけサービ
ス」用の回線切替装置における，発信動作を示すフロー
チャート。FIG. 3 is a flowchart showing a calling operation in the line switching device for “Narikari service”, showing an embodiment of the present invention.
【図４】この考案の実施例を示す，「なりわけサービ
ス」用の回線切替装置の構成図。FIG. 4 is a configuration diagram of a line switching device for “Narikari service”, showing an embodiment of the present invention.
１ 回線極性検出回路 ２ 呼出信号種別検出回路 ３ 接続回路 ４ ループ検出回路 ５ 制御回路 ６ 局線端子 ７ 端末端子 ８ 端末端子 ９ 端末機器 １０ 端末機器 DESCRIPTION OF SYMBOLS 1 Line polarity detection circuit 2 Call signal type detection circuit 3 Connection circuit 4 Loop detection circuit 5 Control circuit 6 Local line terminal 7 Terminal terminal 8 Terminal terminal 9 Terminal device 10 Terminal device
Claims (3)
（６）と，それぞれ端子機器（９，１０）が接続される
二対の端末端子（７，８）と，該局線端子の極性を検出
する回線極性検出回路（１）と，該極性検出回路に到来
する極性反転信号を検出して該端末端子を切り離す接続
回路（３）と，該局線端子に到来する呼出信号を検出す
る呼出信号種別検出回路（２）と，該呼出信号種別検出
回路により検出された信号をサンプリングする手段と，
呼出信号種別に応じて，該局線端子と二対の端末端子の
いずれかを接続する選択手段と，極性反転時の呼出信号
種別非到来時の極性認識自動修正手段と，該端末端子の
ループ閉成を個別に検出するループ検出回路（４）とを
備えたＮＴＴ「なりわけサービス」用の回線切替装置で
あって，該極性検出回路，呼出信号種別検出回路，及び
ループ検出回路の情報を取り込み，該接続回路を制御す
るプログラム制御手段を含む制御回路（５）を備え，該
制御回路は呼出信号種別検出回路が受信した呼出信号種
別とプログラム制御手順内に保持した呼出信号種別情報
とを比較する手段を含み，該接続回路は接点リレーによ
り構成され，該端末端子と局線端子との間に該接点リレ
ーが介挿され，該制御回路は，ループが生成された端末
端子以外の端末端子をそれが終了するまで解放状態にす
る制御手段を含むことを特徴とする「なりわけサービ
ス」用の回線切替装置。1. A pair of central office terminals (6) to which a subscriber line is connected, two pairs of terminal terminals (7, 8) to which terminal devices (9, 10) are respectively connected, and the central office terminal. A line polarity detection circuit (1) for detecting the polarity of a signal, a connection circuit (3) for detecting a polarity inversion signal arriving at the polarity detection circuit and disconnecting the terminal terminal, and a call signal arriving at the office line terminal. A paging signal type detection circuit (2) to be detected, and means for sampling a signal detected by the paging signal type detection circuit;
Selecting means for connecting the central office terminal or one of the two pairs of terminal terminals in accordance with the call signal type; automatic polarity correction means for polarity recognition when the call signal type does not arrive when the polarity is inverted; A line switching device for NTT "Narikari Service", comprising a loop detection circuit (4) for individually detecting the closing, wherein information on the polarity detection circuit, the ringing signal type detection circuit, and the loop detection circuit is stored. A control circuit (5) including a program control means for taking in and controlling the connection circuit, the control circuit recognizing the paging signal type received by the paging signal type detection circuit and the paging signal type information held in the program control procedure. Means for comparing, the connection circuit is constituted by a contact relay, the contact relay is interposed between the terminal terminal and the office terminal, and the control circuit comprises a terminal other than the terminal at which the loop is generated. end The line switching unit for "Nariwake Services", characterized in that it comprises a control means for the released state until it is finished.
路は，呼出信号到来による，端末端子に接続された呼出
目的外端末機器への呼出信号送出，及び接続端末機器の
「チン鳴り」を阻止する手段を含む，請求項１記載の
「なりわけサービス」用の回線切替装置。2. The above-mentioned polarity detection circuit, contact relay and control circuit prevent a call signal from being sent to a non-call-purpose terminal device connected to a terminal terminal and a "tingling" of the connected terminal device when a call signal arrives. 2. The line switching device for the "Narikari service" according to claim 1, further comprising means for performing the operation.
以外に到来する可能性のある極性反転状態について，該
制御回路による情報補正手段を含む，請求項１記載の
「なりわけサービス」用の回線切替装置。3. The "Nari-Sari Service" according to claim 1, wherein said polarity detection circuit and control circuit include information correction means by said control circuit for a polarity inversion state that may arrive other than a calling signal. Line switching equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1998000443U JP3050800U (en) | 1998-01-22 | 1998-01-22 | Line switching device for the service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1998000443U JP3050800U (en) | 1998-01-22 | 1998-01-22 | Line switching device for the service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3050800U true JP3050800U (en) | 1998-07-31 |
Family
ID=43184986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1998000443U Expired - Lifetime JP3050800U (en) | 1998-01-22 | 1998-01-22 | Line switching device for the service |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3050800U (en) |
-
1998
- 1998-01-22 JP JP1998000443U patent/JP3050800U/en not_active Expired - Lifetime
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