JPH0254990B2 - - Google Patents
Info
- Publication number
- JPH0254990B2 JPH0254990B2 JP22894684A JP22894684A JPH0254990B2 JP H0254990 B2 JPH0254990 B2 JP H0254990B2 JP 22894684 A JP22894684 A JP 22894684A JP 22894684 A JP22894684 A JP 22894684A JP H0254990 B2 JPH0254990 B2 JP H0254990B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- exchange
- selection signal
- measuring device
- line
- 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
- 230000005540 biological transmission Effects 0.000 claims description 36
- 238000012360 testing method Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000004913 activation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
- H04M3/323—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for the arrangements providing the connection (test connection, test call, call simulation)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は自動電話交換機における伝送路自動試
験方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic transmission line testing system in an automatic telephone exchange.
従来、自動交換機間の回線試験を行う場合、一
般には専用の装置などを利用し、呼量の少ない時
間帯に行うという方式が採られていた。
Conventionally, when testing circuits between automatic exchanges, the method was generally to use specialized equipment and conduct tests during periods of low call volume.
しかしながらこのような方式においては、実際
に呼量の多い時間帯の伝送路特性が得られないと
いう欠点があつた。また、呼量の多い時間帯に伝
送路試験を行うのは、回線の有効利用率が低下す
るという欠点があつた。
However, such a system has a drawback in that it is not possible to obtain transmission path characteristics during times when the traffic volume is actually high. Furthermore, conducting transmission line tests during periods of high call volume has the disadvantage of reducing the effective utilization rate of the lines.
本発明は以上の点に鑑み、このような問題を解
決すると共にかかる欠点を除去すべくなされたも
ので、その目的は簡単な構成によつて、実際の運
用時の伝送特性を得ることができ、また、別に時
間をとつて測定する不都合はなく、さらに、呼数
に応じて測定回数も増える伝送路自動試験方式を
提供することにある。
In view of the above points, the present invention was made in order to solve such problems and eliminate such drawbacks.The purpose of the present invention is to obtain transmission characteristics during actual operation with a simple configuration. Another object of the present invention is to provide an automatic transmission line test method that does not require time-consuming measurements and can increase the number of measurements depending on the number of calls.
このような目的を達成するため、本発明は、発
信側交換機側中継線の伝送特性を測定するための
伝送特性測定装置と、制御装置からの指令により
上記中継線を上記伝送特性測定装置に切り換える
切替装置とを備え、発信または中継接続を行つた
ときに上記発信側交換機において起動信号から選
択信号を送出するまでの時間を利用し、上記切替
装置と伝送特性測定装置により上記中継線の伝送
路の試験を行い得るようにしたものである。 In order to achieve such an object, the present invention provides a transmission characteristic measuring device for measuring the transmission characteristic of a trunk line on the originating exchange side, and a transmission characteristic measuring device for switching the trunk line to the transmission characteristic measuring device according to a command from a control device. A switching device is provided, and when a call or relay connection is made, the transmission line of the trunk line is controlled by the switching device and the transmission characteristic measuring device, using the time from the activation signal to the sending of the selection signal in the originating exchange. This test was designed to allow for testing.
自動電話交換機において、発信または中継接続
を行う際に、発信側交換機において、起動信号か
ら選択信号を送出するまでの時間（信号方式によ
つては、選択信号送出中の時間を含んでも良い）
を利用し、中継線の周波数特性、雑音特性などの
伝送路特性を測定して中継線の伝送路自動試験を
行う。
When an automatic telephone exchange makes a call or relays a connection, the time from the activation signal to the transmission of the selection signal at the originating exchange (depending on the signaling system, it may include the time during which the selection signal is being sent)
Automatic transmission line testing of trunk lines is performed by measuring transmission line characteristics such as frequency characteristics and noise characteristics of trunk lines.
以下、図面に基づき本発明の実施例を詳細に説
明する。
Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第１図は本発明の一実施例を示すブロツク図
で、説明に必要な部分のみを示す。 FIG. 1 is a block diagram showing one embodiment of the present invention, showing only the parts necessary for explanation.
この第１図において、１は発信側交換機、２は
着信側交換機で、発信側交換機１は発信トランク
３および受信トランク４を介して着信側交換機２
に接続されている。５は選択信号送出装置、６は
着信側交換機２に接続され選択信号送出装置５か
らの選択信号を受信する選択信号受信装置、７は
中継線の伝送特性を測定するための伝送特性測定
装置、８は選択信号送出装置５と伝送特性測定装
置７とを切換える切替装置で、この切替装置８は
図示しない制御装置からの指令により中継線を伝
送特性測定装置７に切り換えるよう構成されてい
る。９は発信側交換機１に接続された保守入出力
装置である。 In this FIG.
It is connected to the. 5 is a selection signal sending device; 6 is a selection signal receiving device that is connected to the destination exchange 2 and receives the selection signal from the selection signal sending device 5; 7 is a transmission characteristic measuring device for measuring the transmission characteristics of the trunk line; Reference numeral 8 denotes a switching device for switching between the selection signal sending device 5 and the transmission characteristic measuring device 7, and this switching device 8 is configured to switch the trunk line to the transmission characteristic measuring device 7 in response to a command from a control device (not shown). 9 is a maintenance input/output device connected to the originating exchange 1;
つぎにこの第１図に示す実施例の動作を第２図
を参照して説明する。 Next, the operation of the embodiment shown in FIG. 1 will be explained with reference to FIG. 2.
この第２図において、(a)は呼出信号DLを示し
たものであり、(b)は発信側Tx、(c)は着信側Rxを
示したものである。そして、ａは周波数特性測定
期間、ｂは雑音特性測定期間、ｃは選択信号送出
期間、ｄは起動保障時限を示す。 In FIG. 2, (a) shows the calling signal DL, (b) shows the calling side Tx, and (c) shows the called side Rx. Further, a indicates a frequency characteristic measurement period, b indicates a noise characteristic measurement period, c indicates a selection signal transmission period, and d indicates a start-up guarantee time limit.
まず、発信側交換機１から着信側交換機２への
“呼”が発生すると、発信側交換機１は発信トラ
ンク３を起動し、着信トランク４へ起動信号を送
出する。ここで、従来は、このとき、選択信号送
出装置５を接続し、第２図に示す起動保障時限ｄ
の後に、選択信号の送出となるという方式が採ら
れていた。 First, when a "call" occurs from the originating exchange 1 to the terminating exchange 2, the originating exchange 1 activates the originating trunk 3 and sends an activation signal to the terminating trunk 4. Here, conventionally, at this time, the selection signal sending device 5 is connected, and the startup guaranteed time d shown in FIG.
After the selection signal was sent out.
本発明においては、上記起動保障時限ｄの間
に、切替装置８にて伝送特性測定装置７に通話路
を切替え、着信トランク４では通話路を発信側交
換機１側に折り返すことにより、実施される。 In the present invention, the switching device 8 switches the call path to the transmission characteristic measuring device 7 during the startup guaranteed time period d, and the incoming trunk 4 returns the call path to the originating exchange 1 side. .
そして、第２図で示すように、周波数特性測定
期間ａには中継線の伝送路の周波数特性を測定
し、雑音特性測定期間ｂには雑音特性といつた測
定を行うことができ、切替装置８と伝送特性測定
装置７の協動により、中継線の伝送路を試験する
ことができる。 As shown in Fig. 2, the frequency characteristics of the transmission line of the trunk line can be measured during the frequency characteristic measurement period a, and the noise characteristics can be measured during the noise characteristic measurement period b. 8 and the transmission characteristic measuring device 7, the transmission path of the trunk line can be tested.
このようにして測定した結果は、保守入出力装
置９に記録される。 The results measured in this way are recorded in the maintenance input/output device 9.
なお、信号方式によつては、選択信号の送受に
実際の通話路を使用しない場合もあるので、第２
図に示す選択信号送出期間ｃをも伝送特性測定期
間とすることもできる。 Note that depending on the signaling system, the actual communication channel may not be used to send and receive the selection signal, so the second
The selection signal transmission period c shown in the figure can also be used as the transmission characteristic measurement period.
以上の説明から明らかなように、本発明によれ
ば、複雑な手段を用いることなく、起動信号から
選択信号を送出するまでの期間（信号方式によつ
ては、選択信号送出中の時間を含んでもよい）を
利用し、伝送路自動試験を行うようにした簡単な
構成によつて、実際の運用時の伝送特性が得ら
れ、また、別に時間をとつて測定する不都合はな
く、さらには、呼数に応じて測定回路も増えると
いう利点があり、有効的な伝送路自動試験方式を
実現することができるので、実用上の効果は極め
て大である。
As is clear from the above description, according to the present invention, the period from the activation signal to the transmission of the selection signal (depending on the signaling system, including the time during transmission of the selection signal) can be achieved without using complicated means. By using a simple configuration that performs automatic transmission line tests using the following methods, transmission characteristics during actual operation can be obtained, and there is no inconvenience of taking extra time to measure them.Furthermore, This method has the advantage that the number of measurement circuits increases according to the number of calls, and an effective automatic transmission line test method can be realized, so the practical effect is extremely large.
第１図は本発明の一実施例を示すブロツク図、
第２図は第１図の動作説明に供するタイムチヤー
トである。
１……発信側交換機、２……着信側交換機、７
……伝送特性測定装置、８……切替装置。
FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a time chart for explaining the operation of FIG. 1. 1... Calling side exchange, 2... Calling side exchange, 7
...Transmission characteristic measuring device, 8...Switching device.
Claims (1)
伝送路を介して接続された着信側交換機からなる
自動電話交換機において、前記発信側交換機側に
前記中継線の伝送特性を測定するための伝送特性
測定装置と、制御装置からの指令により前記中継
線を前記伝送特性測定装置に切り換える切替装置
とを備え、発信または中継接続を行つたときに前
記発信側交換機において起動信号から選択信号を
送出するまでの時間を利用し、前記切替装置と伝
送特性測定装置により前記中継線の伝送路の試験
を行い得るようにしたことを特徴とする伝送路自
動試験方式。1. In an automatic telephone exchange consisting of an originating exchange and a terminating exchange connected to the originating exchange via a transmission line of a trunk line, transmission characteristics are provided on the originating exchange side to measure the transmission characteristics of the trunk line. comprising a measuring device and a switching device for switching the trunk line to the transmission characteristic measuring device according to a command from a control device, and from sending a start signal to a selection signal in the originating exchange when making an outgoing or relay connection. 1. An automatic transmission line testing method, characterized in that the transmission line of the trunk line can be tested using the switching device and the transmission characteristic measuring device using the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22894684A JPS61108250A (en) | 1984-11-01 | 1984-11-01 | Transmission line automatic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22894684A JPS61108250A (en) | 1984-11-01 | 1984-11-01 | Transmission line automatic test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61108250A JPS61108250A (en) | 1986-05-26 |
| JPH0254990B2 true JPH0254990B2 (en) | 1990-11-26 |
Family
ID=16884326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22894684A Granted JPS61108250A (en) | 1984-11-01 | 1984-11-01 | Transmission line automatic test system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61108250A (en) |
-
1984
- 1984-11-01 JP JP22894684A patent/JPS61108250A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61108250A (en) | 1986-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |