JPS6348024A - Signal sequence supervisory method - Google Patents

Abstract

PURPOSE:To efficiently attain the test and maintenance of a system connected via a digital multiplex line by selecting a channel on the digital multiplex line by a measuring instrument so as to supervise a signal sequence transmitted/ received through the channel. CONSTITUTION:A controller 8 is recorded with the terminal number, the line number and the channel number reference list of a terminal equipment 1 in advance. When a terminal equipment 1 dials a signal, a signal for the connection control is transmitted and received via a common line signal line 7 between exchanges 2 and 3. The controller 8 supervises and analyzes the common line signal line 7 to check the calling terminal number in the signal and extracts the line number when the terminal number is coincident with the terminal number of the terminal equipment 1. Further, the channel number corresponding to the line number is assigned instantly by the line number/channel number reference list, the number is transferred to a measuring instrument 9 to give an instruction to extract only the channel on the digital multiplex line 6. The measuring instrument 9 outputs the extracted signal to an external equipment 10, which displays and records it as a signal sequence.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a signal sequence monitoring method, and particularly to a signal sequence monitoring method that can automatically and immediately monitor signal sequences exchanged on a corresponding channel on a digital multiplex line. Regarding monitoring methods.

[Prior Art] Conventionally, as a measuring instrument for monitoring the signal sequence of an arbitrary channel on a digital multiplex line, for example, the ``Digital Multiplex Line Measurement System'' described in Japanese Patent Application No. 70557/1983 has been used. !i+V J.In the method using this measuring device, when a certain terminal makes a call and starts communication, this measuring device is used to monitor the double diameter sequence on the digital multiplex line, so the following I am following the steps like this.

(b) The caller notifies the tester or maintainer that the terminal has made a call and is now communicating.

(Ron testers can enter the command line and find out the line number that the terminal is using.

(c) Determine the corresponding channel number on the digital multiplex line from the line number using the highway accommodation table, line accommodation table, etc. - (d) Monitoring the digital multiplex line "The signal sequence can be monitored by inputting it to an external device such as a col analyzer to Pro 1 via the digital multiplex line measurement BgJ.

[Problem that the invention seeks to solve]

The following problems occur in the monitoring method using the above-mentioned measuring instruments. That is, (a) It takes time and effort to monitor the signal sequence of a certain terminal.

(b) In particular, if a failure occurs during communication with a non-telephone terminal, the terminal will be unable to communicate with the other party's terminal or device such as a computer. In this case, the device such as a terminal or computer will disconnect the line due to a timeout.
There is not enough time to monitor the signal sequence,
I can't even track it.

Due to these problems, it is not possible to smoothly isolate faults during testing and operation of systems connected via digital multiplex lines, resulting in poor testing and maintenance efficiency.

The purpose of the present invention is to improve such problems, to automate the process from terminal calling and dialing to channel number determination, and to enable signal sequences to be monitored on digital multiplex lines in a short time. An object of the present invention is to provide a signal sequence monitoring method that allows efficient testing and maintenance of a system connected via a line.

[Means for solving problems]

In order to achieve the above object, the signal sequence monitoring method of the present invention provides a measurement bag for monitoring signal sequences on a digital multiplex line and a common line signal line provided between exchanges or communication processing equipment. , A control device that detects the line number and controls the measurement device based on the line number is connected to the latter, and the control device is configured in advance to correspond to the terminal number to be tested and the line number/channel number. The table is registered, and the control device monitors the signals of the above-mentioned common line signal line when making or receiving a call from the terminal or when setting up a line between stations, and analyzes the common line signal when setting the line number. By detecting the line number used by the terminal, assigning the corresponding channel number on the digital multiplex line based on the number and the above correspondence table, and transmitting the channel number to the measurement bag opening, The feature is that the measurement bag selects a corresponding channel on the digital multiplex line and automatically monitors the signal sequence exchanged on the channel.

[For production]

Traditionally, monitoring the signal sequence of the corresponding channel used by a terminal on a digital multiplex line when a terminal makes a call, makes a call, or receives a terminal number between stations was done manually. However, in the present invention, the line number in use by the terminal is detected by monitoring and analyzing the common line signal from the terminal number entered in advance, and automatically detecting the line number based on this. In addition, it is now possible to immediately monitor the signal sequences sent and received on the corresponding channel on the digital multiplex line.

〔Example〕

Hereinafter, two embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an overall configuration diagram of a signal sequence monitoring system showing an embodiment of the present invention.

In FIG. 1, l is the terminal to be tested (hereinafter referred to as terminal 1), 2 is the exchange that accommodates the terminal to be tested 1, and 3 is the exchange or communication processing device opposite to exchange 2 (hereinafter referred to as exchange 3). , 4 and 5 are synchronous terminal equipment installed between the exchanges 2 and 3, 6 is a digital multiplex line connecting the synchronous terminal equipment 4 and 5, and 7 is a common line signal for passing between the exchanges 2 and 3. Common line signal line, 8 monitors and analyzes common line signals,
Based on the analysis results, a common line signal analysis/control device (hereinafter referred to as control device 8) that controls the digital multiplex line measuring instrument 9 monitors the four digital multiplex lines, and A digital multi-line measuring device (the measuring device described in the above-mentioned specification, hereinafter referred to as measuring device 9) outputs the signal of the channel to an external device 10, and 10 displays the signal from the measuring device 9 as a signal sequence. - An external device capable of recording (e.g. a protocol analyzer). In Figure 1, the objects of flow are distinguished by the shapes of arrows, with solid black arrows indicating the objects to be monitored, umbrella arrows indicating the flow of information, and square arrows indicating the flow of control information. show.

First, the following two pieces of information are recorded in advance in the control device 8. (1) Terminal operator's terminal number (for example, 06), (1
1) Line number and channel number correspondence table (for exchanges 2 and 3,
In order to determine the line between stations used by the terminal 1, a number is assigned in advance to the line between the stations in software, and this number is called a line number.

Each line corresponds to a certain channel on the digital multiplex line 6, and each channel is assigned a number, which is called a channel number. (This is a correspondence table of these line numbers and channel numbers.)

FIG. 2 is a diagram showing an example of a correspondence table between line numbers and channel numbers. A specific example will be explained with reference to FIG. 1000～
1011 is a line number. A channel number is shown corresponding to each line number.

The actual channel numbers are CHG No, and Cf-(N
Oo). Here, I-IG is an abbreviation for handling group, and when setting the line of the exchange side highway and transmission line in digital synchronization terminal bags 4 and 5, it is set up in units of 6 lines, for example, depending on the operating conditions of each line. is set. The actual channel numbers are these (HG
No., and CHNo.). For example, the channel number corresponding to line number]002 is HG No.
=2. cHN○,=3.

When terminal 1 makes a call and dials, exchange 2 and exchange 3
Signals for connection amount control are exchanged between them via the common signal line 7.

Figure 3 shows 1' in Figure 1! FIG. 3 is a diagram showing an example of a common line signal format for connection control; CC■TT N
In the common line signaling system based on the O.7 system, various signals are transmitted and received on the line 7 by the common line signaling device of the station. Here, the frame format generally includes one calling terminal number, line number, and heading code frame indicating connection control.

The control device 8 monitors and analyzes the common line signal line 7, and first reads a heading code (1 in FIG. 3) indicating connection control.
0) is extracted.

Next, check the calling terminal number in this signal, and when this matches the terminal number of terminal 1 (06 in the figure 3), the line number (that is, the line number used by terminal 1, here 1002) is extracted.

Also, according to the line number/channel number correspondence table, the
The corresponding channel number (in the example in Figure 2, HG
No: 2. CHNO, = 3) is immediately determined,
Transfer this number to the measuring device 9 and digital multiplex a6
Instructs to extract only that channel on the top. The measuring device 9 outputs the extracted signal as a signal that can be input to an external device 10, and the external device 10 displays and records this as a signal sequence.

With this structure, the signal sequence of the corresponding channel on the digital multiplex line used by the terminal under test 1 can be automatically and immediately monitored.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to automatically and immediately monitor the signal sequence sent and received by a certain terminal using a certain channel on a digital multiplex line. It is possible to efficiently test and maintain systems that are connected to the system, and it is also possible to efficiently debug newly constructed systems and isolate faults.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of a signal sequence monitoring system showing an embodiment of the present invention, Fig. 2 is a diagram showing an example of a line number/channel number correspondence table, and Fig. 3 is a diagram for connection control in Fig. 1. FIG. 2 is a diagram illustrating an example of a common channel signal format. 1: Terminal under test, 2: Exchange, 3: Exchange or communication processing equipment, 4, 5: Synchronous terminal equipment, 6: Digital multiplex line, 7: Common line signal port, line, 8: Common line signal - analysis/
Control device (simply a control device), 9: Digital multiple line measuring device (simply a measuring device), 10: External device (protocol analyzer, etc.). Brother, − ward ε

Claims (1)

[Claims] (1) For the digital multiplex line and common line signal line installed between exchanges or communication processing equipment, the former is equipped with a measuring device that monitors the signal sequence, and the latter is equipped with a measuring device that detects the line number and detects the line number. The control devices that control the above measuring devices are connected based on the above, and the terminal number to be tested and the line number/channel number correspondence table are registered in advance in the above control device. Or, by monitoring the signal of the common line signal line mentioned above when setting the line between stations and analyzing the common line signal when setting the line number,
The measuring device detects the line number used by the terminal, determines the corresponding channel number on the digital multiplex line based on the number and the above correspondence table, and transfers the channel number to the measuring device. A signal sequence monitoring method comprising selecting a corresponding channel on a multiplex line and automatically monitoring a signal sequence transmitted and received on the selected channel.