JPH01228252A - Loop back test system on inter-station digital transmission path - Google Patents
Loop back test system on inter-station digital transmission pathInfo
- Publication number
- JPH01228252A JPH01228252A JP5428788A JP5428788A JPH01228252A JP H01228252 A JPH01228252 A JP H01228252A JP 5428788 A JP5428788 A JP 5428788A JP 5428788 A JP5428788 A JP 5428788A JP H01228252 A JPH01228252 A JP H01228252A
- Authority
- JP
- Japan
- Prior art keywords
- information
- station
- digital transmission
- loop back
- back test
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000012790 confirmation Methods 0.000 claims abstract description 4
- 238000010998 test method Methods 0.000 claims description 5
- 238000002405 diagnostic procedure Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は時分割電子交換機を用いた局間デジタル伝送路
における折り返し試験方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a loopback test method in an interoffice digital transmission line using a time division electronic exchange.
従来、局間のデジタル伝送路における折り返し試験方法
としては電鍵等による手動の試験方法が主であった。。Conventionally, the main loopback testing method for digital transmission lines between stations has been manual testing using a telephone key or the like. .
上述したように従来の局間のデジタル伝送路における折
り返し試験方法としては電鍵等による方法が主であるた
め、デジタル伝送路等の自動定期診断ができないという
欠点があった。As mentioned above, the conventional loopback testing method for digital transmission lines between stations mainly uses a method using a telephone key, etc., which has the disadvantage that automatic periodic diagnosis of digital transmission lines etc. cannot be performed.
本発明の目的は前記課題を解決した局間デジタル伝送路
における折り返し試験方式を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a loopback test method for interoffice digital transmission lines that solves the above problems.
上記目的を達成するため、本発明は時分割電子交換機間
がデジタル伝送路にて接続され、該デジタル伝送路を介
して情報の送受を行うことにより各種局間サービスを提
供するシステムにおいて、各種局間サービスをｖ１″（
：（する制御情報送受信手段と、相手局に対して折り返
し試験の設定要求、解除要求及び各々の確認情報の送受
信を局間の制御情報を用いて行う手段と、上位制御装置
からの制御にて前記受信情報を折り返す手段と、折り返
し試験時受信情報を監視する手段と、前記制御情報送受
信手段とデジタル伝送路とをインターフェイスする手段
とを有するものである。In order to achieve the above object, the present invention provides a system for providing various inter-office services by connecting time-sharing electronic exchanges via a digital transmission path and transmitting and receiving information via the digital transmission path. Interval service v1'' (
: (A control information transmitting/receiving means for transmitting and receiving control information to the partner station, a means for transmitting and receiving a return test setting request, cancellation request, and respective confirmation information to the other station using control information between the stations, and a control information from the host control device. The apparatus includes means for returning the received information, means for monitoring the received information during a return test, and means for interfacing the control information transmitting and receiving means with a digital transmission path.
次に、本発明について図面を参照して説明する６第１図
は本発明の局間デジタル伝送路における折り返し試験方
式の一実施例を示すブロック図である。Next, the present invention will be described with reference to the drawings. 6. FIG. 1 is a block diagram showing an embodiment of a loopback test method in an inter-office digital transmission line according to the present invention.
図において、Ａ局及びＢ局は上位制御装置１−１゜上位
制御装置インターフェイス部１−２、メモリ１−３、マ
イクロプロセッサ１−４、情報送信用プロトコル変換回
路１−５、情報受信用プロトコル変換回路１−６、情報
選択回路１−７、デジタル伝送路インターフェイス１−
８、折り返し試験起動用フリップフロップ１−９をそれ
ぞれ有し、Ａ局とＢ局とのデジタル伝送路インターフェ
イスｌ−８相互間をデジタル伝送路１−１０に結線する
。In the figure, A station and B station are a host controller 1-1, a host controller interface section 1-2, a memory 1-3, a microprocessor 1-4, an information transmission protocol conversion circuit 1-5, and an information reception protocol. Conversion circuit 1-6, information selection circuit 1-7, digital transmission line interface 1-
8. They each have flip-flops 1-9 for start-up of loopback tests, and connect the digital transmission line interface 1-8 between the A station and the B station to the digital transmission line 1-10.
次に、本実施例の動作について説明する。Next, the operation of this embodiment will be explained.
通常、動作時は上位制御装置１−１から送られてくる送
信情報をマイクロプロセッサ１−４と情報送信用プロト
コル変換回路１−５とで予め決められた情報形式に変換
して伝送路インターフェイス１−８を介して相手局に情
報を送信する。Normally, during operation, transmission information sent from the host controller 1-1 is converted into a predetermined information format by the microprocessor 1-4 and the information transmission protocol conversion circuit 1-5. -8 to send information to the other station.
また、相手局から送られてくる情報は伝送路インターフ
ェイス１−８を介して情報受信用プロトコル変換回路１
−６にて受信し、マイクロプロセッサ１−４によって上
位制御装置に送出する。以上のシーケンスを繰り返すこ
とにより局間における情報の送受を行う。Also, information sent from the other station is sent via the transmission path interface 1-8 to the information receiving protocol conversion circuit 1.
-6, and sent to the host controller by the microprocessor 1-4. Information is transmitted and received between stations by repeating the above sequence.
次に、デジタル伝送路の自動定期診断試験時には、例え
ば、Ａ局からＢ局に対して、局間の制御情報の一つとし
て折り返し試験設定要求を送出する。一方、Ｂ局側では
、前記設定要求を受信すると、それに対して折り返し試
験許可情報を送出するとともに８局内の折り返し試験起
動用フリップフロップ１−９を制御して折り返し試験状
態にする。Next, during an automatic periodic diagnostic test of the digital transmission path, for example, a return test setting request is sent from the A station to the B station as one of the inter-station control information. On the other hand, when station B receives the setting request, it sends return test permission information in response to the setting request and controls the return test start flip-flops 1-9 in the eight stations to enter the return test state.
折り返し試験時においては、第１図の点線のルートで情
報が転送される。Ａ局側ではＢ局にて折り返された情報
を監視することによりデジタル伝送路の試験を行う。Ｂ
局側では、Ａ局側からの受信情報が折り返し試験解除情
報かどうか監視する。During the return test, information is transferred along the dotted line route in FIG. On the A station side, the digital transmission path is tested by monitoring the information returned by the B station. B
The station side monitors whether the information received from the A station side is return test cancellation information.
デジタル伝送路の試験終了後、Ａ局からＢ局に対して、
局間の制御情報の一つとして折り返し試験解除情報を送
出する。一方Ｂ局側では前記解除情報を受信すると折り
返し試験起動用フリップフロップｌ−９を制御して折り
返し試験を終了し、通常の情報転送状態に戻した後、折
り返し試験状態を解除したことを制御情報の一つとして
Ａ局に送出し、通常の各種局間サービスを提供するため
の制御情報の送受を再開する。After testing the digital transmission line, from station A to station B,
Return test cancellation information is sent as one of the control information between stations. On the other hand, when station B side receives the release information, it controls the loopback test starting flip-flop l-9 to complete the loopback test, returns to the normal information transfer state, and then sends control information indicating that the loopback test state has been canceled. As one of the steps, the control information is sent to station A, and the transmission and reception of control information for providing various normal inter-office services is resumed.
以上のように、デジタル伝送路及び各種局間サービス制
御情報送受信回路等の自動定期診断試験を容易に行うこ
とができる。As described above, automatic periodic diagnostic tests of digital transmission lines, various inter-office service control information transmitting/receiving circuits, etc. can be easily performed.
以上説明したように本発明は、時分割電子交換機間がデ
ジタル伝送路にて接続され該デジタル伝送路を介して情
報の送受を行うことにより各種局間サービスを提供する
システムにおいて、各種局間サービスを提供するための
制御情報送受信手段。As explained above, the present invention provides various inter-office services in a system that provides various inter-office services by connecting time-sharing electronic exchanges via a digital transmission path and transmitting and receiving information via the digital transmission path. control information transmitting and receiving means for providing.
相手局に対して折り返し試験の設定要求、解除要求及び
各々の確認情報の送受信を局間の制御情報を用いて行う
手段、上位制御装置からの制御にて前記受信情報を折り
返す手段、折り返し試験時受信情報を監視する手段、前
記制御情報送受信手段とデジタル伝送路とをインターフ
ェイスする手段とを有することにより、デジタル伝送路
及び各種局間サービス制御情報送受信回路等の自動定期
診断試験を行うことができるという効果がある。Means for transmitting and receiving a call-back test setting request, cancellation request, and respective confirmation information to and from a partner station using inter-station control information; means for returning the received information under control from a higher-level control device; and during a call-back test. By having a means for monitoring received information and a means for interfacing the control information transmitting/receiving means with a digital transmission line, it is possible to perform automatic periodic diagnostic tests of the digital transmission line and various inter-office service control information transmitting/receiving circuits, etc. There is an effect.
【図面の簡単な説明】
第１図は本発明の局間デジタル伝送路における折り返し
試験方法の一実施例を示すブロック図である。
１−１・・・上位制御装置
１−２・・・上位制御装置インターフェイス部１−３・
・・メモリ １−４・・・マイクロプロセッサ１
−５・・情報送信用プロトコル変換回路１−６・・・情
報受信用プロトコル変換回路１−７・・・情報選択回路
１−８・・・デジタル伝送路インターフェイス１−９・
・・折り返し試験起動用フリップフロップ１−１０・・
・デジタル伝送路BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the loopback test method for inter-office digital transmission lines according to the present invention. 1-1... Upper control device 1-2... Upper control device interface section 1-3.
...Memory 1-4...Microprocessor 1
-5...Protocol conversion circuit for information transmission 1-6...Protocol conversion circuit for information reception 1-7...Information selection circuit 1-8...Digital transmission line interface 1-9.
・Flip-flop 1-10 for loopback test startup・・
・Digital transmission line
Claims (1)
、該デジタル伝送路を介して情報の送受を行うことによ
り各種局間サービスを提供するシステムにおいて、各種
局間サービスを提供する制御情報送受信手段と、相手局
に対して折り返し試験の設定要求、解除要求及び各々の
確認情報の送受信を局間の制御情報を用いて行う手段と
、上位制御装置からの制御にて前記受信情報を折り返す
手段と、折り返し試験時受信情報を監視する手段と、前
記制御情報送受信手段とデジタル伝送路とをインターフ
ェイスする手段とを有することを特徴とする局間デジタ
ル伝送路における折り返し試験方式。1. In a system in which time division electronic exchanges are connected by digital transmission paths and various inter-office services are provided by sending and receiving information via the digital transmission paths, control information transmission and reception for providing various inter-office services. means for transmitting and receiving a return test setting request, cancellation request, and respective confirmation information to and from the other station using control information between the stations; and means for returning the received information under control from a higher-level control device. A return test method for an inter-office digital transmission line, comprising: a means for monitoring received information during a return test; and a means for interfacing the control information transmitting/receiving means with a digital transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5428788A JPH01228252A (en) | 1988-03-08 | 1988-03-08 | Loop back test system on inter-station digital transmission path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5428788A JPH01228252A (en) | 1988-03-08 | 1988-03-08 | Loop back test system on inter-station digital transmission path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01228252A true JPH01228252A (en) | 1989-09-12 |
Family
ID=12966348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5428788A Pending JPH01228252A (en) | 1988-03-08 | 1988-03-08 | Loop back test system on inter-station digital transmission path |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01228252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7471220B2 (en) | 2004-07-16 | 2008-12-30 | Infineon Technologies Ag | Electronic test circuit for an integrated circuit and methods for testing the driver strength and for testing the input sensitivity of a receiver of the integrated circuit |
-
1988
- 1988-03-08 JP JP5428788A patent/JPH01228252A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7471220B2 (en) | 2004-07-16 | 2008-12-30 | Infineon Technologies Ag | Electronic test circuit for an integrated circuit and methods for testing the driver strength and for testing the input sensitivity of a receiver of the integrated circuit |
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