JPS61189756A - Trouble informing system - Google Patents

Abstract

PURPOSE:To inform a trouble to an MPR directly and in a concrete form by securing an AND between the data written to a maintenance equipment having a data return function and the trouble generation signal showing that a trouble occurs at each peripheral equipment. CONSTITUTION:In case a fuse FS of a power supply Vs of a peripheral equipment P is not blown, a relay is set at a position alpha. Then the data (d) written by the conventional function is read directly to an MPR agan via a bus Bd. While a drive power supply Vd is earthed and the input is delivered through one side of an AND gate 1b in case the FS is blown and the relay is set at a position beta. Thus all signals consist of '0', for example. This all-'0' signal is defined as a trouble generation signal S and therefore the output of the gate 1b is also equal to S. Therefore the 2nd gate 2c is opened by the gate signal (r) of a decoder DEC2 corresponding to the read request signal Rrq. Then the signal S is sent to the bus Bd and then read by the MPR. Thus the MPR can know a specific peripheral device that is set under a fuse cut-off state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a failure notification system. The electronic exchange has a management processor MPR that controls the entire exchange.
(Management Processor) is connected, and this MPR confirms the normality of the bus connecting the MPR and each peripheral device by receiving data returned from a maintenance device provided in the peripheral device.

In this case, the maintenance device has a data return function of sending back data from the MPR.

The present invention utilizes the data return function of this maintenance device to
This relates to a method for notifying a PR of a failure.

[Problems to be solved by the prior art and the invention] The conventional fault notification method, as shown in FIG.
1...System monitoring device SSC that monitors Pl failures
However, the failure information 11 from each of the peripheral devices P, . . . P,
.io is collected and the collected information is read by the MPR (arrow READ) However, since information about all of each peripheral device is to be obtained, there is a large amount of information.

Therefore, in the conventional system shown in FIG. 2, only the type of device in which a fault has occurred and the importance of the fault can be notified. Therefore, in the conventional method, there was a problem in that more specific information about each peripheral device was not notified. For example, in a device where P7 is duplicated, even if there is a failure such as when the power fuse of #O is blown and operation must be performed by switching to #1 of a different system, conventionally the device P7
Only the failure information i, . . , is notified to the MPR. Therefore, it is not known whether the fault has occurred in either system #0 or #1 of device Pn, and if left as is, the system will continue to operate with faulty #0 malfunctioning. .

[Means for solving problems]

The present invention is intended to solve the above-mentioned problems, and its means constitute each peripheral device connected via a bus to a management processor that controls an electronic exchange system, and the above-mentioned maintenance device having a data return function is provided. The management processor writes data, performs a logical product between the written data and a failure signal indicating that a failure has occurred in each peripheral device, and the management processor reads the logical product, thereby generating data from each peripheral device. This is achieved by a failure notification method characterized in that failure information is notified to the management processor.

[For production]

The method of the present invention is to return data to a maintenance device for confirming the normality of the bus provided in each peripheral device.

By using this function, the MPR is forced to read specific data when a failure occurs, so when the MPR performs a read or write operation to each peripheral device, the specific data is read directly from each peripheral device to the MPR. failure will be notified.

〔Example〕

Hereinafter, the present invention will be explained by way of examples with reference to the accompanying drawings.

FIG. 1 is a diagram showing the configuration of an apparatus for implementing the method of the present invention.

The device shown in FIG. 1 is a maintenance device 1 installed in each peripheral device P.
, the first flip-flop 7 pla constituting the maintenance device 1
It consists of a gate 1b and a second gate IC.

The maintenance device 1 is provided in each peripheral device P, and each peripheral device is connected to a management processor MPR via an address bus Ba and a data bus Bd.

The maintenance device 1 includes a flip-flop la that takes in data D from the data bus Bd in response to a write request signal W rq;
The first gate 1-1b outputs the data d from the bus Bd when no failure occurs in the peripheral device P, and the failure occurrence signal S when a failure occurs, respectively, to the second gate IC by the successive request signal Rrq. It consists of a second gate IC that opens the gate.

Further, the first decoder DBCI receives the address A sent from the MPR via the address bus Ba by the write request signal W.
rq, and the second decoder DEC2 receives the address A sent from MPR via the address bus Ba.
is decoded by read request signal Rrq.

Further, power supplies Vd and Vs of the maintenance device 1 are a drive power supply for the first gate 1b and a power supply for each device constituting the peripheral device P, respectively.

The operation of the apparatus shown in FIG. 1 will be explained below. The original function of the maintenance device 1 is to confirm the normality of the bus by having the MPR write and read data.

That is, data d sent from MPR to peripheral device P via bus Bd (rightward arrow) is stored in flip-flop 1a. The clock CK at this time is a signal W output by decoding the address A sent from the MPR via the address bus Ba by the decoder DEC1 using the write request signal Wrq.

The original function of the maintenance device 1 is to decode the address A with the decoder DEC2 using the read request signal Rrq, open the gate IC with the output signal r, and return the data d directly to the data bus Bd. do(
left arrow). At this time, if the bus Bd is working normally, the looped data d is returned to the MPR as it is, so it is confirmed that the bus Bd is normal.If it is abnormal, completely different data is returned to the MPR, so the bus Bd is confirmed to be normal. abnormality is determined.

In addition to such original functions, according to the present invention, a fuse blowout is detected on the input side of the first gate 1b, for example, an AND gate.

That is, if the fuse FS of the power supply Vs (-48 [V)) of the peripheral device P is not blown, the relay is in the position α and the drive power supply Vd of the first gate 1b is not grounded. Therefore, the input signal of the AND gate 1b is the signal H except for the write data d, and the second gate IC is opened according to the above-mentioned original function by the successive request signal Rrq, and the written data d is transferred directly to the bus Bd again. via MP
Read to R.

However, the fuse FS is blown and the relay is β as shown by the broken line.
When the position changes to , the drive power supply Vd is grounded and the current becomes V
Flows out from d. Therefore, one input of the computer game 1b becomes a signal consisting of, for example, all "0"s. If this all 1101'' is taken as the failure occurrence signal S, the output of the AND gate 1b will also be S.

Therefore, the decoder DEC corresponding to the read request signal Rrq
The second gate 2C is opened by the gate signal r of No. 2, and the fault occurrence signal S is sent to the bus Bd.

By reading this fault occurrence signal S, the MPR can determine which peripheral device has a blown fuse. This fuse rupture makes the peripheral devices that have been used until now unusable, and the system is switched to take the next necessary action.

In this way, the inherent data loopback function of the maintenance device for checking bus normality is utilized, and when a failure occurs, specific data is read directly from the peripheral device into the MPR.

〔Effect of the invention〕

According to the present invention, by using the data return function of the maintenance device provided in each peripheral device to confirm the normality of the bus, specific data can be forcibly retrieved from MP when a failure occurs.
Since R is configured to read, specific failures are directly notified from each peripheral device to the MPR when the MPR performs read and write operations to each peripheral device.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of an apparatus for carrying out the method of the present invention;
The figure is an explanatory diagram of a conventional method. P...peripheral device, 1...maintenance device, la...flip-flop, ib...first gate, lc...second
Gate, DECl...first decoder, DEC2...
Second decoder.

Claims (1)

[Claims] The management processor writes data to a maintenance device that constitutes each peripheral device connected via a bus to the management processor that controls the electronic switching system and has a data return function, and the written data and each peripheral device are and a fault occurrence signal indicating that a fault has occurred, and the management processor reads the logical product, whereby fault information is notified from each of the peripheral devices to the management processor. failure notification method.