JPS6234302B2 - - Google Patents
Info
- Publication number
- JPS6234302B2 JPS6234302B2 JP1545981A JP1545981A JPS6234302B2 JP S6234302 B2 JPS6234302 B2 JP S6234302B2 JP 1545981 A JP1545981 A JP 1545981A JP 1545981 A JP1545981 A JP 1545981A JP S6234302 B2 JPS6234302 B2 JP S6234302B2
- Authority
- JP
- Japan
- Prior art keywords
- test
- section
- line
- station
- under 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.)
- Expired
Links
- 238000012360 testing method Methods 0.000 claims description 77
- 238000004891 communication Methods 0.000 claims description 42
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Description
【発明の詳細な説明】
この発明は被試験回線を通過している任意の2
局間の通信回線の試験を所定の局内装置から遠隔
操作で行なう通信回線遠隔試験方式に関する。[Detailed Description of the Invention] This invention enables any two
This invention relates to a communication line remote testing method for testing communication lines between stations by remote control from a predetermined in-office device.
データ通信において通信回線の試験を行なう場
合、従来の方法としては、被試験回線上の2局間
で回線の伝送特性を考慮に入れて、一方の局の切
り分けジヤツクから試験信号を入力し、他方の局
の切り分けジヤツクにおいて試験信号を受信する
ことにより2局間の回線試験を行なつていた。こ
のため試験を行なう場合には被試験回線を経由す
る局の保守者が連絡を取りあつて試験を行なう必
要があるため、障害の切り分けに長い時間を要
し、多数の人員を必要とする欠点があつた。 When testing a communication line in data communications, the conventional method is to input a test signal from the isolation jack of one station between two stations on the line under test, taking into account the transmission characteristics of the line, and then Line tests between two stations were performed by receiving test signals at the isolation jacks of the two stations. For this reason, when testing, it is necessary for the maintenance person of the station through which the line under test is to be contacted to conduct the test, which has the drawback of requiring a long time and large number of personnel to isolate the fault. It was hot.
この発明の目的は上記の欠点を除去し、被試験
回線を経由する局の保守者が連絡を取り合うこと
なく、通信回線の任意区間の試験を行なうことが
できる通信回線遠隔試験方式を提供することにあ
る。 An object of the present invention is to eliminate the above-mentioned drawbacks and provide a communication line remote testing method that allows testing of any section of the communication line without contacting the maintenance staff of the station passing through the line under test. It is in.
以下にこの発明による試験方法について図面を
参照して説明する。第1図において、回線終端装
置1及び2の間に回線終端装置1から2へ信号を
送るための通信回線3,4,5,6,7が、回線
終端装置2から1へ信号を送るための通信回線
8,9,10,11,12が設けられている。こ
れら通信回線が通過する各局にそれぞれ局内装置
13,14,15,16が設置される。それぞれ
の局内装置には、通信回線を試験するための試験
部17,18,19,20とこれを制御するため
の制御部21,22,23,24および他局の局
内装置とのデータ通信を行なうデータ送受信部2
5,26,27,28がある。また、被試験回線
の構成および伝送特性等を格納している局内装置
29を被試験回線を管轄している局に設置し、被
試験回線上の局を制御する制御記憶部30と他局
の局内装置とのデータ通信を行なうデータ送受信
部31が設けられる。これら局内装置13〜1
6,29のデータ送受信部25〜28,31はデ
ータ通信回線32を介してデータの送受信が行な
われる。 The test method according to the present invention will be explained below with reference to the drawings. In FIG. 1, communication lines 3, 4, 5, 6, and 7 are used between line termination devices 1 and 2 to send signals from line termination device 1 to line termination device 2; Communication lines 8, 9, 10, 11, and 12 are provided. In-office devices 13, 14, 15, and 16 are installed at each station through which these communication lines pass. Each in-office device includes test sections 17, 18, 19, 20 for testing communication lines, control sections 21, 22, 23, 24 for controlling these, and data communication with in-office devices of other stations. Data transmitting/receiving section 2
There are 5, 26, 27, and 28. In addition, an in-station device 29 that stores the configuration, transmission characteristics, etc. of the line under test is installed in the station that has jurisdiction over the line under test, and a control storage unit 30 that controls stations on the line under test and information on other stations are installed. A data transmitting/receiving section 31 is provided for performing data communication with in-office devices. These internal devices 13-1
The data transmitting/receiving units 25 to 28 and 31 of 6 and 29 transmit and receive data via a data communication line 32.
上記構成において通信回線4〜6及び9〜11
の試験を行なう手順を以下に記す。被試験回線を
経由する局の中にただ1つ被試験回線を統制する
局(統制局)を定め、制御記憶部30に被試験回
線を経由するすべての局ごとに局を識別するポイ
ンタアドレスと、該ポインタアドレスで指定され
た位置に統制局方向を見て被試験回線を介して隣
接する局のポインタアドレスと、その区間の伝送
特性をメモリ内にあらかじめ記憶させておく。伝
送特性としては、例えば通信回線の減衰量が使用
される。ここでは、局内装置13を統制局とし、
局内装置13,14,15,16のポインタアド
レスをそれぞれ01,02,03,04とし、通
信回線4,11の伝送特性をa、通信回線5,1
0の伝送特性をb、通信回線6,9の伝送特性を
cとした場合の制御部30のメモリ構成を第2図
に示す。 In the above configuration, communication lines 4 to 6 and 9 to 11
The procedure for conducting the test is described below. Among the stations passing through the line under test, only one station (control station) is defined to control the line under test, and a pointer address and a pointer address for identifying the station are stored in the control storage unit 30 for each station passing through the line under test. , the pointer address of an adjacent station via the line under test looking toward the control station at the position specified by the pointer address and the transmission characteristics of that section are stored in advance in the memory. As the transmission characteristic, for example, the amount of attenuation of a communication line is used. Here, the in-office device 13 is used as a control station,
The pointer addresses of the in-office devices 13, 14, 15, and 16 are respectively 01, 02, 03, and 04, the transmission characteristics of communication lines 4 and 11 are a, and the communication lines 5 and 1 are
FIG. 2 shows the memory configuration of the control unit 30, where the transmission characteristic of 0 is b, and the transmission characteristic of the communication lines 6 and 9 is c.
試験は操作員が1つの局の局内装置29の制御
記憶部30に対して局内装置13と16の間の通
信回線を試験するよう指示することにより開始さ
れる。制御記憶部30はこの指示により第2図に
示したメモリの内容を読み出し、被試験区間の両
端のポインタアドレスが01と04となることか
ら下記のように伝送特性を算出する。ポインタア
ドレス01は統制局であるため、隣接するポイン
タアドレスの情報がない。この為ポインタアドレ
ス04から算出を開始する。ポインタアドレス0
4の内容からポインタアドレス04に隣接する局
のポインタアドレスが03で、その区間の伝送特
性がcであることがわかる。次にポインタアドレ
ス03の内容からポインタアドレス03に隣接す
る局のポインタアドレスが02で、その区間の伝
送特性がbであることがわかる。同様にしてポイ
ンタアドレス02の内容からポインタアドレス0
2に隣接する局のポインタアドレスが01で、そ
の区間の伝送特性がaであることがわかる。以上
からポインタアドレス01と04の間にはポイン
タアドレス02と03があり、伝送特性はそれぞ
れの区間の伝送特性を加えたa+b+cであるこ
とが算出される。その後、制御部30はデータ通
信回路32を介して局内装置13に対して、局内
装置13と16の間の通信回線を試験する指令と
その区間の伝送特性を送出する。この試験はデー
タ送受信部25が受信した内容を制御部21が解
読し、試験部17に対して試験実行指示を与える
ことにより行なわれる。試験部17は、通信回線
3と4,11と12を切りはなし、通信回線4に
対して試験信号を送出し、試験を行なう。例えば
通信回線4に対して発振器を接続し、一定レベル
の信号を送出する。次に制御部21はデータ通信
回線32を介して局内装置16に対して通信回線
4〜6,9〜11の試験を行なう指令とその区間
の伝送特性を送出する。制御部24はデータ送受
信部28が受信した内容を解読し、試験部20に
対して試験実行指示および被試験区間の伝送特性
を与える。試験部20は通信回線6と7,8と9
をそれぞれ切り離し通信回線4〜6を介して試験
部17から送られてきている信号のレベルを測定
し、制御部24から送られてきた伝送特性と比較
し、試験回線の良否を判定する。その後、試験部
20は通信回線9に対して発振器を接続し、一定
レベルの信号を送出し、制御部24に対して通信
回線4〜6の試験結果を送信し、制御部24はこ
の結果をデータ通信回線32を介して局内装置1
3の制御部21に送信する。制御部21は試験部
17に対して通信回線9〜11を介して試験部2
0から送信されてくる信号のレベルを測定するよ
う指示する。試験部17は通信回線11より受信
される信号のレベルを測定し、被試験区間の伝送
特性と比較し、回線の良否を判定し制御部21に
その結果を返送する。以上により試験動作を終了
したので、制御部21は試験部17に対して試験
実行前の状態に復帰させる指示を出すこともに、
データ通信回線32を介して制御部24に対して
試験実行前の状態に復帰させる指示を出し、制御
部24は試験部20にこの指示を送ることによ
り、通信回線を試験実行以前の状態に復帰させ
る。 The test is started by an operator instructing the control storage unit 30 of the intra-office device 29 of one station to test the communication line between the intra-office devices 13 and 16. In response to this instruction, the control storage section 30 reads the contents of the memory shown in FIG. 2, and calculates the transmission characteristics as described below since the pointer addresses at both ends of the section under test are 01 and 04. Since pointer address 01 is a control station, there is no information about adjacent pointer addresses. For this reason, calculation starts from pointer address 04. pointer address 0
From the contents of 4, it can be seen that the pointer address of the station adjacent to pointer address 04 is 03, and the transmission characteristic of that section is c. Next, from the contents of pointer address 03, it can be seen that the pointer address of the station adjacent to pointer address 03 is 02, and the transmission characteristic of that section is b. Similarly, from the contents of pointer address 02, pointer address 0 is
It can be seen that the pointer address of the station adjacent to 2 is 01, and the transmission characteristic of that section is a. From the above, it is calculated that there are pointer addresses 02 and 03 between pointer addresses 01 and 04, and the transmission characteristics are a+b+c, which is the sum of the transmission characteristics of each section. Thereafter, the control section 30 sends a command to test the communication line between the intra-office apparatuses 13 and 16 and the transmission characteristics of that section to the intra-office apparatus 13 via the data communication circuit 32. This test is performed by the control section 21 decoding the content received by the data transmitting/receiving section 25 and giving a test execution instruction to the testing section 17. The test section 17 disconnects the communication lines 3 and 4, 11 and 12, sends a test signal to the communication line 4, and performs a test. For example, an oscillator is connected to the communication line 4 and a signal at a constant level is sent out. Next, the control unit 21 sends a command to test the communication lines 4 to 6 and 9 to 11 and the transmission characteristics of the sections to the in-office device 16 via the data communication line 32. The control unit 24 decodes the content received by the data transmitting/receiving unit 28, and provides the test unit 20 with a test execution instruction and the transmission characteristics of the section under test. The test section 20 has communication lines 6 and 7, 8 and 9.
The level of the signal sent from the test section 17 via the communication lines 4 to 6 is measured and compared with the transmission characteristics sent from the control section 24 to determine whether the test line is good or bad. Thereafter, the test section 20 connects an oscillator to the communication line 9, sends out a signal at a certain level, and transmits the test results of the communication lines 4 to 6 to the control section 24, which receives the results. In-office device 1 via data communication line 32
The information is transmitted to the control unit 21 of No. 3. The control unit 21 communicates with the test unit 17 via communication lines 9 to 11.
Instructs to measure the level of the signal sent from 0. The test section 17 measures the level of the signal received from the communication line 11, compares it with the transmission characteristics of the section under test, determines whether the line is good or bad, and sends the result back to the control section 21. Since the test operation has been completed as described above, the control section 21 may issue an instruction to the test section 17 to return to the state before the test execution.
An instruction is sent to the control unit 24 via the data communication line 32 to return to the state before the test execution, and the control unit 24 sends this instruction to the test unit 20 to restore the communication line to the state before the test execution. let
次に制御部21は、データ通信回線32を介し
て、通信回線4〜6,9〜11の試験結果を局内
装置29の制御記憶部30に送信する。制御記憶
部30は表示装置等を介して操作員に試験結果を
示す。 Next, the control unit 21 transmits the test results of the communication lines 4 to 6 and 9 to 11 to the control storage unit 30 of the in-office device 29 via the data communication line 32. The control storage unit 30 shows the test results to the operator via a display device or the like.
なお以上の説明では被試験回線上に設置された
局の両端の回線区間を試験する例を示したが、局
内装置14と15の間の回線試験及び被試験回線
が分岐回線で構成されている場合など、被試験回
線上の任意の2局間の回線を試験することが可能
であることは明らかである。 In the above explanation, an example was shown in which the line sections at both ends of the station installed on the line under test are tested, but the line test between the station equipment 14 and 15 and the line under test are composed of branch lines. It is clear that it is possible to test a line between any two stations on the line under test, such as when
以上説明したようにこの発明の試験方式によれ
ば、被試験回線の伝送特性を局が設置されている
区間ごとに分類して格納しておくことにより伝送
特性が格納されている局から、被試験回線上に局
が設置されている任意の区間ごとに通信回線の試
験を行なうことが可能であり、被試験回線上の保
守者が連絡を取り合いながら試験をする必要がな
いので試験時間が少なくて済み、多数の人員も必
要としないので試験の効率が著しく向上する効果
がある。 As explained above, according to the test method of the present invention, the transmission characteristics of the line under test are classified and stored for each section in which stations are installed. It is possible to test the communication line in any section where a station is installed on the test line, and the test time is reduced because the maintenance personnel on the line under test do not have to communicate with each other during the test. This has the effect of significantly improving testing efficiency as it does not require a large number of personnel.
第1図はこの発明の一実施例を示すブロツク
図、第2図は被試験回線の伝送特性等を制御部に
記憶しておく場合の一例を示す説明図である。
1,2……回線終端装置、3〜12……通信回
線、13〜16,29……局内装置、17〜20
……試験部、21〜24……制御部、30……制
御記憶部、25〜28,31……データ送受信
部、32……データ通信回線。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing an example of a case where transmission characteristics, etc. of a line under test are stored in a control section. 1, 2...Line termination device, 3-12...Communication line, 13-16, 29...In-office device, 17-20
...Test section, 21-24...Control section, 30...Control storage section, 25-28, 31...Data transmission/reception section, 32...Data communication line.
Claims (1)
線の良否を判定する試験部、これを制御する制御
部および外部装置との間でデータの授受を行なう
ためのデータ送受信部を具備する第1の局と、被
試験回線が経由する局を識別するポインタアドレ
スならびに該ポインタアドレスで指定される位置
に識別された局と被試験回線を介して隣接する局
とのポインタアドレスならびにその区間の通信回
線の伝送特性を記憶するメモリ、該メモリの内容
を読み出し被試験回線上の任意の2局間の伝送特
性を算出する手段および前記2局に設置された前
記第1の局に対して算出済みの回線特性および試
験項目を送出し試験結果を受信する手段を備えた
第2の局とを有することを特徴とする通信回線遠
隔試験方式。1. A first section comprising a test section that transmits and receives test signals on the line under test and determines whether the line under test is good or bad, a control section that controls this, and a data transmitter/receiver section that exchanges data with an external device. A pointer address that identifies the station through which the line under test passes, a pointer address between the station identified at the position specified by the pointer address and an adjacent station via the line under test, and the communication line in that section. a memory for storing the transmission characteristics of the first station installed in the two stations; a means for reading the contents of the memory and calculating the transmission characteristics between any two stations on the line under test; A communication line remote testing system comprising: a second station equipped with means for transmitting line characteristics and test items and receiving test results.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1545981A JPS57129550A (en) | 1981-02-04 | 1981-02-04 | Remote test system of communication circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1545981A JPS57129550A (en) | 1981-02-04 | 1981-02-04 | Remote test system of communication circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57129550A JPS57129550A (en) | 1982-08-11 |
JPS6234302B2 true JPS6234302B2 (en) | 1987-07-25 |
Family
ID=11889376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1545981A Granted JPS57129550A (en) | 1981-02-04 | 1981-02-04 | Remote test system of communication circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57129550A (en) |
-
1981
- 1981-02-04 JP JP1545981A patent/JPS57129550A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57129550A (en) | 1982-08-11 |
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