JPS5821956A - Switching system for stand-by subscriber circuit - Google Patents

Switching system for stand-by subscriber circuit

Info

Publication number
JPS5821956A
JPS5821956A JP12108981A JP12108981A JPS5821956A JP S5821956 A JPS5821956 A JP S5821956A JP 12108981 A JP12108981 A JP 12108981A JP 12108981 A JP12108981 A JP 12108981A JP S5821956 A JPS5821956 A JP S5821956A
Authority
JP
Japan
Prior art keywords
subscriber
circuit
subscriber circuit
switch
subscriber terminal
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
Application number
JP12108981A
Other languages
Japanese (ja)
Other versions
JPH0241944B2 (en
Inventor
Haruaki Hasegawa
長谷川　晴朗
Hiroshi Sakai
博 酒井
Koji Kogure
木暮　光司
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP12108981A priority Critical patent/JPS5821956A/en
Publication of JPS5821956A publication Critical patent/JPS5821956A/en
Publication of JPH0241944B2 publication Critical patent/JPH0241944B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To supply the service to a subscriber having a fault and to prevent the lowering of the service, by providing a switching means to connect a spare subscriber circuit to a subscriber terminal corresponding to a faulty subscriber circuit via a lead-in switch at the side of the subscriber terminal. CONSTITUTION:The lead-in switches L1-LN-1 to a system tester STM at the side of a subscriber terminal and the lead-in switches S1-SN-1 to the tester STM of the device side are inserted to each side of a device which includes the subscriber terminals SUB1-SUBN-1 and the subscriber circuits SC1-SCN-1. At the same time, the switching means LN and SN are inserted to a spare subscriber circuit SCN to connect the circuit SCN to the terminals SUB1-SUBN-1. Then the circuit SCN is connected to the terminals SUB1-SUBN-1 corresponding to the fault by the means LN and SN via the switches L1-LN. Thus the service is supplied to the subscriber having a fault, and at the same time the searching is facilitated for a fault through the tester STM. In such a way, the lowering of the service is prevented.

Description

【発明の詳細な説明】 １禾発明は加入者回路側の障害時にその加入者端末への
サービスを低下させることなくその加入者回路側の試験
を行えるようにした予備加入者回路切替方式に関するも
のである。[Detailed Description of the Invention] 1. The invention relates to a standby subscriber circuit switching system that enables testing of the subscriber circuit side without deteriorating the service to the subscriber terminal when the subscriber circuit side fails. It is.

第１図は従来の交換装置において、引込スイッチを通じ
て加入者線をシステム試験装置に引込む方式図である。FIG. 1 is a diagram illustrating a method in which a subscriber line is connected to a system testing device through a lead-in switch in a conventional switching device.

図において５ＵＢＩ　、５ＵＢｚ・・・・・・５ＵＢＮ
、、５ＵＢＮ　は加入者端末、Ｓｏ、。In the figure, 5UBI, 5UBz...5UBN
,,5UBN is the subscriber terminal,So,.

ｓｃ２．・・・・・・５ｃＮ−、、ｓｃＮは加入者回路
、８ＴＵはシステム試験装置ｂ　”ｌ　ｊ　Ｌ２　＋・
・・・・・ＬＮ−、、ＬＮは加入者端末側の引込みスイ
ッチ＞　８１　Ｈ８２＋・・・・・・５Ｎ−１１８Ｎは
加入者回路ｓｃ１．ｓｃ２．・・・・・・ＳＣＮ　を含
む装置側の引込みスイッチであり。sc2. ...5cN-, scN is the subscriber circuit, 8TU is the system test equipment b "l j L2 +.
...LN-, LN is the subscriber terminal side lead-in switch>81 H82+...5N-118N is the subscriber circuit sc1. sc2. ...This is a pull-in switch on the device side including the SCN.

いま加入者端末ＳＵＢ、及び加入者回路ＳＣ，対応の加
入者線をシステム試験装置ＳＴＵ　に引込む時は、スイ
ッチＬ、及びＳｔを破線で示すように動作させる。つま
り、スイッチＬｉ　　の動作によシ加入者端末ＳＵＢ、
側が、またスイッチＳＬ　　の動作により加入者回路Ｓ
Ｃ１側がそれぞれシステム試験装置ＳＴＵに引込まれ１
種々の試験を行うことができる。When connecting the subscriber terminal SUB, the subscriber circuit SC, and the corresponding subscriber line to the system test equipment STU, the switches L and St are operated as shown by the broken lines. That is, depending on the operation of the switch Li, the subscriber terminal SUB,
side is also connected to the subscriber circuit S by the operation of the switch SL.
The C1 side is each pulled into the system test equipment STU.
Various tests can be performed.

従って、この様な方式においては、加入者回路Ｓｅｔ　
　の障害時に、上述のようにして各種の試験を行って加
入者回路８０．　　の障害探索を行うことができるが、
加入者回路は通常二重化されていないためその間加入者
端末ＳＵＢ、にはサービスが供給されないという欠点が
あった。Therefore, in such a system, the subscriber circuit Set
When the subscriber circuit 80. Although it is possible to search for obstacles,
Since the subscriber circuit is usually not duplicated, there is a drawback that no service is provided to the subscriber terminal SUB during that time.

本発明は上記の如き欠点に鑑み、障害加入者回路に対す
る試験の実行中、対応する加入者端末を予備加入者回路
に接続して、引き続き該加入者端末にサービスを供給し
得るようにしたもので、その要旨とするところは複数の
加入者端末と加入者回路を含む装置とをそれぞれの側に
挿入された引込みスイッチを介してシステム試験装置に
引込むようにした交換装置において。In view of the above-mentioned drawbacks, the present invention is designed to connect the corresponding subscriber terminal to the spare subscriber circuit while testing the faulty subscriber circuit so that service can continue to be provided to the subscriber terminal. The gist is a switching device in which a device including a plurality of subscriber terminals and subscriber circuits is pulled into a system testing device via a pull-in switch inserted on each side.

通常は使用しない予備加入者回路と加入者回路側の障害
発生時に該予備加入者回路を加入者端末側の引込みスイ
ッチを介して障害加入者回路対応の力ｎ入省端末に接続
するスイッチ手段とを有し、システム試験装置による各
種試験の実行中予備加入者回路によシ、鯖加入者端末に
サービスを供給することを特徴とする予備加入者回路切
替方式にある。以下本発明を図面について詳細に説明す
る。A switch means for connecting a backup subscriber circuit that is not normally used and a power input terminal corresponding to the failed subscriber circuit through a lead-in switch on the subscriber terminal side when a failure occurs on the subscriber circuit side. The present invention is a standby subscriber circuit switching system characterized in that the standby subscriber circuit supplies services to the subscriber terminals during various tests performed by the system test equipment. The invention will now be explained in detail with reference to the drawings.

第２図は本発明の第１の実施例を示すもので。FIG. 2 shows a first embodiment of the present invention.

図中ＳＵＢ、、５ＵＢ２．・・・・・・Ｓ　Ｕ　Ｂ　Ｎ
−、は加入者端末、Ｓｅｔ　、ｓｃ２　、・・・・・・
５ＣＮ−、は加入者回路である。In the figure, SUB, 5UB2.・・・・・・SUBN
−, is a subscriber terminal, Set , sc2 , . . .
5CN-, is a subscriber circuit.

ＳＯＮ　は予備加入者回路であり、これには加入者端末
を接続しない。ＳＴＵはシステム試験装置４　Ｌｌ　１
　Ｌ２　ｇ・・・・・・ＬＮ−、は加入者端末側の引込
みスイッチ、Ｓ　ｔ　　＋　Ｓ”　’・・・・・・Ｓ　
　　は加入者回路ＳＯ＋＋−１ ８０２、Ｓｏ、１を含む装置側の引込みスイッチである
。ＬＮ及びｓＮは加入者回路ＳＣ１〜Ｓ　ＣＮ−ｔのい
ずれかが障害となった時に該障害加入者回路に対応する
加入者端末に対して予備加入者回路５ＣＮ１１ｒ、接続
す゛るためめ２イベツチζオイレチ跡の接続が他のスイ
ッチとは逆になっており、このスイッチＬＮを介して予
備加入者回路ｓｃＮ　　を含む装置側とシステム試験装
置ＳＴＵ側とが短絡されるようになっている。SON is a standby subscriber circuit to which no subscriber terminals are connected. STU is system test equipment 4 Ll 1
L2 g...LN-, is the lead-in switch on the subscriber terminal side, S t + S'''...S
is a retraction switch on the side of the device containing the subscriber circuit SO++-1 802, So,1. LN and sN are 2-event ζ oil switches for connecting the backup subscriber circuit 5CN11r to the subscriber terminal corresponding to the failed subscriber circuit when any of the subscriber circuits SC1 to SCN-t becomes faulty. The connection at the back is reversed from that of the other switches, so that the device side including the standby subscriber circuit scN and the system testing device STU are short-circuited via this switch LN.

次に動作を説明する。いま加入者回路ＳＣ１に障害が発
生すると、スイッチＬ、、Ｓ、及びＬＮを破線で示すよ
うに動作させる。スイッチＳ１　　の動作により、障害
加入者回路ＳＣ１はスイッチ　　　ＳＬ　　を経由して
システム試験装置ＳＴＵに引込まれ、障害探索のため各
種の試験が行われる。Next, the operation will be explained. If a failure occurs in the subscriber circuit SC1, the switches L, , S, and LN are operated as shown by the broken lines. By the operation of the switch S1, the faulty subscriber circuit SC1 is drawn into the system testing unit STU via the switch SL, and various tests are performed to search for a fault.

一方加入者端末ＳＵＢ、はスイッチＬ　ｔ　＋　ＬＮ　
＋　ＳＮを経由して予備加入者回路ＳＯＮに接続され、
通常のサービスが供給される。On the other hand, the subscriber terminal SUB is the switch L t + LN
+ connected to the standby subscriber circuit SON via SN;
Normal services will be provided.

この様に第１の実施例では予備加入者回路ＳＯＮの加入
者端末側のスイッチを逆向けに取付けるという簡単な構
成の付加により、システム試験装置ＳＴＵ側に引込まれ
た加入者端末を予備加入者回路ＳＯＮに接続することが
できる。なお、予備加入者回路については他の適当な加
入者回路を用いることも任意である。In this way, in the first embodiment, by adding a simple configuration in which the switch on the subscriber terminal side of the backup subscriber circuit SON is installed in the opposite direction, the subscriber terminal drawn into the system test equipment STU side can be connected to the backup subscriber terminal. It can be connected to the circuit SON. Note that it is also optional to use another suitable subscriber circuit as the backup subscriber circuit.

第３図は第２の実施例を示すものである。第１の実施例
は予備加入者回路の加入者端末側の引込みスイッチＬＮ
　を逆向きｖｃ取付けたが、この実施例ではスイッチマ
トリクスを付加させることにより、スイッチＬＮ　を逆
向きに取付けずに加入者端末を予備加入者回路に接続し
得るようにしたものである。すなわち、第３図において
ＳＷＭはスイッチマトリクスで、入側に加入者線からの
引込線を、また出側にシステム試験装置ＳＴＵへの引込
線及び予備加入者回路８ＣＭの加入者線をスイッチＬＮ
　　、　ＳＮを介してそれぞれ収容する。その他の構成
は第１の実施例と同様である。FIG. 3 shows a second embodiment. The first embodiment is a lead-in switch LN on the subscriber terminal side of the backup subscriber circuit.
However, in this embodiment, by adding a switch matrix, it is possible to connect the subscriber terminal to the standby subscriber circuit without installing the switch LN in the reverse direction. That is, in FIG. 3, SWM is a switch matrix, which connects the drop-in line from the subscriber line on the input side, and connects the drop-in line to the system test equipment STU and the subscriber line of the backup subscriber circuit 8CM on the output side to the switch LN.
, SN respectively. The other configurations are similar to the first embodiment.

上記の如き構成において、加入者回路ＳＣ１の障害時に
は、スイッチＬｌ、Ｓｔを破線に示すように動作させ、
加入者回路ＳＣｌはスイッチＳ１゜スイッチマトリクス
ＳＷＭを経由してシステム試験装置ＳＴＵに接続され、
加入者端末８ＵＢｔはスイッチＬ１．スイッチマトリク
スＳＷＭ、スイッチＬＮ　、　ＳＮを経由して予備加入
者回路８ＴＵに接続される。In the above configuration, when a failure occurs in the subscriber circuit SC1, the switches Ll and St are operated as shown by the broken lines,
The subscriber circuit SCl is connected to the system test equipment STU via the switch S1゜switch matrix SWM,
Subscriber terminal 8UBt is connected to switch L1. It is connected to the backup subscriber circuit 8TU via the switch matrix SWM, switches LN and SN.

以上説明した如く本発明によれば複数の加入者端末と加
入者回路を含む装置とをそれぞれの側に挿入された引込
み゛スイッチを介してシステム試験装置に引込むように
した交換装置において１通常は使用しない予備加入者回
路と加入者回路側の障害発生時に該予備加入者回路を加
入者端末側の引込みスイッチを介して障害〃ａ入者回路
対応の加入者端末に接続するスイッチ手段とを有するの
で、加入者回路が障害となってもその加入者端末を予備
加入者回路に接続してサービスを供給しつつ、障害とな
った加入者回路について各種試験を行なって障害箇所の
探索を行うことができ、サービスの低下を来たす恐れが
ない等の利点を有する。As explained above, according to the present invention, it is generally used in a switching device in which a plurality of subscriber terminals and a device including subscriber circuits are connected to a system testing device via a retracting switch inserted on each side. and a switch means for connecting the backup subscriber circuit to a subscriber terminal corresponding to the faulty subscriber circuit via a lead-in switch on the subscriber terminal side when a failure occurs on the subscriber circuit side. Even if a fault occurs in a subscriber circuit, the subscriber terminal can be connected to a backup subscriber circuit to provide service, and various tests can be performed on the faulty subscriber circuit to locate the fault location. It has the advantage that there is no risk of deterioration of service.

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

図面は本発明の説明に供するもので、第１図は従来の加
入者線の引込み方式図、第２図は本発明の第１の実施例
を示す予備加入者回路切替゛　方式図、第３図は本発明
の第２の実施例を示す第１図と同様の図である。 ＳＵＢ＊　、５ＵＢ２〜ＳＵＢ　　　・・・・・・加入
者端末。 −１ ｓｅｔ、ｓｃ２〜５ｃＮ−、・・・・・・加入者回路、
ＳＣＮ・・・・・・予備加入者回路、ＳＴＵ・・・・・
・システム試験装置、　ＬＨ、Ｌ２、〜”Ｎ−１・・・
・・・加入者端末側のＳＴＵへの引込みスイッチｂｓｌ
、Ｓ２ｅ〜ＳＮ−１・・・・・・装置側のＳＴＵへの引
込みスイッチＴｈ　ＬＮ＃８Ｎ　・・・・・・ＳＯＮを
５ＵＢＩ〜５ＵＢＮ−、に接続するためのスイッチ手段
。 代理人弁理士　吉　１）精　孝The drawings are for explaining the present invention, and FIG. 1 is a diagram of a conventional subscriber line lead-in system, FIG. 2 is a diagram of a backup subscriber circuit switching system showing a first embodiment of the present invention, and FIG. The figure is a diagram similar to FIG. 1 showing a second embodiment of the invention. SUB*, 5UB2~SUB...Subscriber terminal. -1 set, sc2 to 5cN-, ... subscriber circuit,
SCN... Backup subscriber circuit, STU...
・System test equipment, LH, L2, ~”N-1...
... Lead-in switch bsl to the STU on the subscriber terminal side
, S2e to SN-1... Device-side lead-in switch to STU Th LN#8N... Switch means for connecting SON to 5UBI to 5UBN-. Representative Patent Attorney Yoshi 1) Takashi Sei

Claims (1)

【特許請求の範囲】[Claims] 複数の加入者端末と加入者回路を含む装置とをそれぞれ
の側に挿入された引込みスイッチを介してシステム試験
装置に引込む占うにした交換装置において、通常は使用
しない予備加入者回路と加入者回路側の障害発生一時に
該予備加入者回路を加入者端末側の引込みスイッチを介
して障害加入者回路対応の加入者端末に接続するスイッ
チ手段とを有し、システム試験装置による各種試験の実
行中予備加入者回路によシ、該加入者端末にサービスを
供給することを特徴とする予備加入者回路切替方式。In a switching device that connects a device containing a plurality of subscriber terminals and subscriber circuits to the system test equipment via a pull-in switch inserted on each side, spare subscriber circuits and subscriber circuits that are not normally used are used. switch means for connecting the spare subscriber circuit to a subscriber terminal corresponding to the faulty subscriber circuit via a lead-in switch on the subscriber terminal side when a failure occurs on the subscriber terminal side, and while various tests are being performed by the system test equipment A protection subscriber circuit switching system characterized in that a service is supplied to the subscriber terminal through the protection subscriber circuit.
JP12108981A 1981-08-01 1981-08-01 Switching system for stand-by subscriber circuit Granted JPS5821956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12108981A JPS5821956A (en) 1981-08-01 1981-08-01 Switching system for stand-by subscriber circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12108981A JPS5821956A (en) 1981-08-01 1981-08-01 Switching system for stand-by subscriber circuit

Publications (2)

Publication Number Publication Date
JPS5821956A true JPS5821956A (en) 1983-02-09
JPH0241944B2 JPH0241944B2 (en) 1990-09-20

Family

ID=14802592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12108981A Granted JPS5821956A (en) 1981-08-01 1981-08-01 Switching system for stand-by subscriber circuit

Country Status (1)

Country Link
JP (1) JPS5821956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63250255A (en) * 1987-04-06 1988-10-18 Nec Corp Switching system for faulty subscriber's circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105923A (en) * 1977-02-28 1978-09-14 Nec Corp Automatic test system for ringer
JPS55115786A (en) * 1979-02-28 1980-09-05 Fujitsu Ltd N+1 spare system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105923A (en) * 1977-02-28 1978-09-14 Nec Corp Automatic test system for ringer
JPS55115786A (en) * 1979-02-28 1980-09-05 Fujitsu Ltd N+1 spare system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63250255A (en) * 1987-04-06 1988-10-18 Nec Corp Switching system for faulty subscriber's circuit

Also Published As

Publication number Publication date
JPH0241944B2 (en) 1990-09-20

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