JPS62131688A - Self-diagnosing device for time division electronic exchange - Google Patents

Abstract

PURPOSE:To apply self-diagnosis of a channel system automatically by adding a function applying loopback at each block of a channel, that is, each channel circuit and changing a signal sequentially by a test signal transmission/reception circuit under the control of a self-diagnosis control section. CONSTITUTION:The titled device consists of a time division switch 200, channel circuit groups 110-11n...130-13n of a subscriber system connected to the said switch, their terminals 100-10n, a test signal transmission/reception circuit 300 and a self-diagnosis control section 400 controlling each section. The self- diagnosis control section 400 uses a control line 620 to give a signal loopback command to the channel circuit 130. Since the signal loopback command is given by the self-diagnosis control section 400, the signal inputted to the channel circuit 130 is subjected to loopback and given to the test signal transmission/ reception circuit 300 via a channel 2 of the time division switch 200. When the transmission signal and the reception signal are coincident in this case, it is ascertained that the channel circuit 120 is faulty.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The unissued 151 relates to a self-diagnosis device for an hourly/minute-to-electronic Y exchange, and particularly to a self-diagnosis device for a communication line system.

[Conventional Techniques & 1] Conventionally, self-diagnosis of the communication path system of this type of time-division electronic switching equipment concerns the entire communication path system, and it is difficult to determine in which block of the communication path circuit a fault has occurred. teeth,
By collecting all the fault information fiJ, searching for and analyzing the fault diagnostic dictionary, maintenance staff could feel at ease in pointing out the faulty block in the communication path system.

[Problems to be solved] In the conventional self-diagnosis of the communication path system of the IA electronic exchange described above, it is difficult to detect that a fault has occurred in the communication path system even if the faulty part is in a state of failure. There was a drawback that it was not possible to immediately point out where in the circuit block of the road system. In other words, in order to point out a faulty block, search the fault diagnosis dictionary that collects all the fault information, and check one of the specified connections, etc.
It is necessary to use diagnostic commands sequentially to estimate a certain range of the faulty part, and then replace the printed circuit boards that are thought to be faulty one by one to pinpoint the faulty part.
This method has the disadvantage that a great deal of effort and time is required from the occurrence of a fault to its detection, investigation, and fault recovery.

[Means for solving the problems] In order to solve the problems of the conventional technology, the present invention provides time-sharing savings! ! ! !
It is an object of the present invention to provide a self-diagnosis device that can automatically detect faults by arranging a return circuit having a return function at an appropriate position in the communication path system of a machine.

To this end, the present invention provides a self-diagnosis device for the communication path system of a time-sharing electronic exchange, which includes a self-diagnosis control section that controls each section during self-diagnosis, and a self-diagnosis control section that controls each section in accordance with instructions from the self-diagnosis control section. 11 which connects a communication path section circuit group having a function of turning back a communication path, a test signal transmission/reception circuit that transmits and receives test signals to detect a faulty part, and a test-ready transmission/reception circuit and each communication path section system; '1 minute;+
; 1 switch J, and can automatically detect the failure part of the communication path system of the time-sharing 'tun Y switching device! The present invention provides a self-diagnosis device for a time-sharing electronic exchange that performs t\-characteristics.

[Example] Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a Bronyer diagram of an embodiment of the present invention, and FIG. 2 is a detailed view of the same part.

The self-diagnosis device for a time division electronic exchange according to the present invention includes a time division switch 200, and subscriber system call control circuits JTIIO to 1. In, 120-12n, 130-1
3n and its terminals 1oo-10n and time division switch 2
The test signal transmitting/receiving circuit 300 is Ig-connected to 00, and the self-diagnosis control section 400 controls each section. The terminal 100-Ion and the communication terminal circuits 110-11n are connected via signal lines 500-50n, respectively. The communication foot circuits 110-11n and the voice foot circuits 120-12n are connected via feed lines 510, 520-51n, and 52n, respectively.

Call step circuits 120 to 12n and call step circuits 130 to 1
3n are connected to signal lines 530 and 540 to 5, respectively.
3n and 54n. Signal lines 550 and 560 to 55n and 56n are connected between the call control circuits 130 to 13n and the time division switch 200, respectively.
have been contacted through. Signal lines 570 and 580 are connected between the test signal transmitting and receiving circuit 300 and the time division switch 200.
have been contacted through. Control lines 60 are connected between the self-diagnosis control unit 400 and the communication control circuits 110-11n, respectively.
0 to 60n, and is connected to the telephone terminal circuit 120 to 1.
2n through control lines 610-60n, respectively, and communication with the communication foot circuits 130-13n through control lines 620-62n, respectively. Control lines 700 are connected between the self-diagnosis control section 400, the time division switch 200, and the test signal transmission/reception circuit 300, respectively.
and 800.

The time-division switch 200 self-registers 0 by a command received from the diagnostic control unit 400 via the control line 700.
It includes a first channel 1 that communicates between the main line 570 and the signal lines 560 to 56n, and a second channel 2 that communicates between the signal lines 550 to 55n and the signal line 580.

Call step circuits 110-lln, 120-12n, 130
~13n are all circuit configurations, so for convenience of explanation -1-
Only the call control circuit 120 will be explained. A signal return circuit is provided in the telephone call section circuit 120, as shown in the detailed block diagram of FIG. That is, a selection circuit 900 is inserted into the signal line 510, and is controlled by a command given via the control line 610 from the self-diagnosis control unit 400 to change the signal line 520 to the signal line 510 and switch the signal line 520 to the communication step subcircuit 910. Pass through track 530
Connect to. A communication step subcircuit 920 is disposed between the communication lines 520 and 540.

Next, the self-diagnosis operation of this embodiment will be explained.

It is assumed that a self-diagnosis is performed on the communication path system included in the terminal lOO.

The self-diagnosis control unit 400 issues a signal return instruction to the call control circuit 120 via the control line 610. As a result, in the call step circuit 120, the selection circuit 900 cuts off the connection between the signal line 510 and the call step small circuit 910, and the connection between the signal line 520 and the call step small circuit 910 is completed. At the same time, the time division switch 200 is instructed to connect channel 1 and Bouillon 2 via the control line 700.

Thereafter, a command to start the test is issued to the test signal transmitting/receiving 4'+ circuit 300. Test signal transmission/reception is also carried out by transmitting signals sent from the circuit 300 to channel 1 of the hour/minute +l;l switch 200 and to the call control circuit 1 via the call control circuit 130.
Reach 20.

In the call step circuit 120, the signal line 520 is connected to the selection circuit 90.
Since it is connected to the communication step small circuit 910 by 0,
The information input from the signal line 540 is transmitted to the signal-J line 53.
Output to 0. Therefore, No. 4i-, which has reached the telephone terminal circuit 120, is turned back and the telephone terminal circuit 130 and 11
! is returned to the test signal transmitting/receiving circuit 300 via channel 2 of the division switch 200.

The test signal transmission/reception A/X circuit 300 determines whether the transmitted signal and the received signal are the same or not. If the transmission signal is 1, -, and the reception signal is 1, this system, that is, the system including the test signal transmitting/receiving circuit 300, the time division switch 200, and the communication path system of the communication step circuits 130 and 120 is stopped. It can be determined that If the transmitted signal and received signal are different, it can be determined that there is a faulty part in this system.
The same operation as described above is repeated to search for the faulty part.

The details of how to search for the defective part will be explained in more detail.

The self-diagnosis control unit 400 issues a signal return command to the call control circuit 130 via the control line 620.

Thereafter, a signal sending command is issued to the test signal transmitting/receiving circuit 300. The signal sent out from the test signal transmitting/receiving circuit 300 reaches the call section circuit 130 via channel 1 of the time division switch 200. Since the call pedal circuit 130 receives a signal return command from the self-diagnosis control unit 400,
The signal input to the call control circuit 130 is looped back and sent back to the test signal 5;

If the time transmission 4r (+i number and the reception number (i4j) occur), it is determined that the call control circuit 120 is malfunctioning.

I
) become Noh.

[Effects of the Invention] As described below, the present invention adds a loopback function to each block of the communication path section, that is, each communication step circuit, and performs testing under control from the self-diagnosis control section. Since the signal is changed sequentially in the signal transmitting/receiving circuit, self-diagnosis of the communication path system can be automatically performed with +RF function.
By setting the range in which faults can be detected for each block, it becomes possible to search for the faulty part easily and quickly, and as a result, fault recovery can be carried out quickly.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of a self-diagnosis device for a time division electronic exchange according to the present invention, and FIG. 2 is a detailed diagram of a portion thereof. Zoo-Ion: Terminals 110-lln, 120-12n, 130-b 200: Time division switch 300: Test signal transmission/reception circuit 400: Self-diagnosis control section 500-580: Signal lines 600-62n, 700.800: Control line 900 :
selection circuit

Claims (1)

[Claims] A self-diagnosis device for the communication path system of a time-division electronic exchange has a self-diagnosis control section that controls each part during self-diagnosis, and can turn back the communication path for each communication path circuit according to instructions from the self-diagnosis control section. It has a communication path section circuit group having a function, a test signal transmission and reception circuit that transmits and receives a test signal to detect a faulty part, and a time division switch that connects the test signal transmission and reception circuit and each communication path section system, A self-diagnosis device for a time-division electronic exchange, characterized in that it can automatically detect a failure part in a communication line system of the time-division electronic exchange.