JPS63142948A - System maintenance system - Google Patents

Abstract

PURPOSE:To prevent mis-operation that a package except a package of out of service is extracted by the maintenance personnel in mistake by providing an alarm signal display lamp or the like to all packages and lighting an alarm signal or the like of a faulty package individually through the use of a data base. CONSTITUTION:Each package is provided with an alarm signal display lamp 205 and an out of service signal display lamp 206. System status information is processed by a main processor (MPR) 212, collated with a data base in a memory 213 and system status information on a logic space is converted into an alarm signal or an out of service signal on a physical space. MISK units (MISK) 207-1-207-n receive the alarm signal or the out of service signal to light the alarm signal display lamp 205 of the package or the out of service signal display lamp.

Description

[Detailed Description of the Invention] [Summary] System status information obtained by centrally monitoring devices included in a digital switching system is edited using a database to generate a signal that designates devices that are ready for maintenance. A device that drives the status display means of each device by sending signals to the corresponding device via a serial data bus.

[Industrial application field]

The present invention relates to a system maintenance method for a digital switching system.

Generally, in an office including a digital switching system, there is a fifth
As shown in the figure, a plurality of equipment rack rows 51, 52°...
are arranged. Each equipment rack row has a plurality of equipment racks 511.
512,513. It consists of... Each equipment rack has a plurality of shells 5111, 5112, 5113,...
・Consists of.

Each shell has multiple packages 5111L51112,5
It consists of 1113°...

With the recent progress in LSI technology, devices that were conventionally housed in a shell are now housed in each package.

When a failure occurs in any one of these huge numbers of packages, there is a demand for quickly and accurately identifying the location of the failure to enable maintenance work.

[Conventional technology]

Conventionally, as shown in FIG. 6, the status of each equipment rack, equipment rack, shell, and package was centrally monitored at a console 61 installed at one location within the station, and this was displayed on a display (V
DU) 62, a display operation panel 63, and an audible signal board 64.

[Problems to be Solved by the Invention] According to the above-mentioned conventional technology, the fault display is only displayed centrally at one location within the station, so maintenance personnel have to memorize the fault location displayed on the console. However, there is a risk that the user may lose his or her memory by the time he or she goes to the location where the defective package actually exists. For this reason, there is a problem in that prompt and accurate maintenance work may not be possible. That is, each shell typically also includes a power package that is common to the group of pancages within it, but maintenance personnel may mistakenly install a power package other than the failed package that is out of service. If a package is removed, the power to all packages in that shell will be cut off.

To accurately identify a faulty package, each package should be equipped with a warning lamp, an out-of-service indicator lamp, etc., and wired from the console to each package, but the number of wires would be enormous and it would be difficult to Not. In addition, the mounting conditions for each package may change depending on station conditions, etc., but in a method where all puff cages are individually wired, the power supply system will differ each time the mounting conditions of various input/output devices, etc. change. This is not practical, as it would be necessary to change physical conditions such as jumpers.

In view of the above-mentioned problems of the prior art, an object of the present invention is to store the mounting conditions of all packages in a database, and edit system status information generated by a common control section of a switch from logical addresses to physical addresses using the database. Based on the concept of flashing a warning lamp, etc. by specifying the faulty package, the maintenance method of the digital exchange system can flexibly respond to implementation conditions and quickly and accurately locate the faulty package. The objective is to make maintenance work easier.

[Means for solving problems]

FIG. 1 is a block diagram of the principle of the system maintenance method of the present invention. In the figure, the digital switching system includes a plurality of devices 1-LL-2, . . . , 1-n, a common control section 2, and a system console 3. Contains. The common control unit 2 is connected to the devices 1-1, 1-2. ..., analyze the status of 1-0 and generate system status information. The database memory 4 in the system console 3 is stored in the device 1-
1.1-2. ....

It is used to store the implementation conditions of 1-n, edit system status information, and generate signals specifying devices that are in a serviceable state.

System console 3 and MW 1-1, 1-2,・
....

fn is connected via a serial data bus 5.

Apparatus 1-1.1-2. ..., 1-0 are display means 6 to 1.6-2. ..., 6-n.

The failure display means of the device which receives a signal indicating a maintenance possible state from the system console 3 via the serial data bus 5 is activated.

[For production]

Since failure and out-of-service are displayed on the status display means of each device, maintenance personnel cannot misidentify the location of a faulty device or erroneously remove a device that is not out of service from the rack. It doesn't happen.

In addition, the database memory 4 includes devices 1-1, 1-2,
．． ..., 1-n are stored, so even if the mounting conditions change, it is only necessary to change the database, and there is no need to change physical conditions such as jumpers.

〔Example〕

FIG. 2 is a block diagram illustrating a system maintenance scheme according to one embodiment of the present invention. In the figure, a digital exchange main body 20, a system console 21 from which system status information is received, and maintenance buses 22 and 23 are shown.

The digital exchange main body 20 includes a plurality of rows 201-1 to 201-1.
201-n and a main processor (MPR) 202. Each row includes a plurality of racks 203-1, 203
-2, . . . , 203-a+ and a plurality of packages 204-1, 204-2, .
204-3. ... exists. Each package is provided with an alarm signal indicator lamp 205 and an out-of-service signal indicator lamp 206. Each rack has a MIS unit (MIS) that is common to all racks in the row.
K) 207-i (i = 1, 2,...

or n) is provided, and a maintenance bus 22゜2 is provided.
Collects alarm signals and out-of-service signals from 3 and distributes them to the controlled pancakes.

Main processor 202 monitors all devices within switch body 20 and generates system status information. System status information is transmitted from channel device 208-1 to
208-k and serial data interface
The data is sent to the system console 21 via adapters 209-1 to 209-k.

The system console 21 can be configured with a commercially available personal computer, and has a main bus 211, a main processor (MPR) 212, a memory 213, a CRT control device (CRT CTL) 214, a display device 215 connected thereto, and a keyboard. Control device (KYB CTL
) 216 and a keyboard 217 connected thereto, a printer control device (PRT CTL) 218 and a printer 219 connected thereto, a disk control device (DISK
CTL) 220, a floppy disk 221 connected to it, and a serial data controller (ADLC).
CTL) 222 and 223, etc.

The memory (MPU) 213 includes a database used to edit the system status information sent from the main processor (MPR) 202 of the digital exchange main body 20 and generate a signal indicating a maintainable state. Stored. That is, system status information is processed by the main processor (MPR) 222 and displayed on the display device 215, printed out on the printer 219, or printed out on the floppy disk 22 for centralized monitoring on the system console 21.
1 and is compared with the database in the memory 213 to convert system status information in the logical space into an alarm signal or an out-of-service signal in the physical space. MISK UNIT (formerly CK
) 207-1 to 207-n are the alarm signal indicator lamps of the package when it receives this alarm signal or out-of-service signal and is an alarm signal or out-of-service signal of the package under its control. 205 or out-of-service signal indicator lamp.

FIG. 3 shows the maintenance buses 22 and 2 in FIG.
FIG. 3 is a block diagram showing an example of connection of No. 3; In FIG. 3, the same parts as in FIG. 2 are given the same reference numerals. Data from the serial data controller (ADLC) 222 and 223 in the system console 21 is sent to all miscellaneous units (formerly SK) 207- in a "flowing" format.
1-20? −n. In addition, in the figure, 22
4 and 226 are hash receivers, 225 and 227 are bus drivers, and the bus drivers 225 and 227 are controlled by transmission gate control signals 228 and 229 from serial/data controllers (ADLC) 222 and 223. Each Miss Uniso) 20? -i (i =
1, 2..., or n) is a serial data controller (AD) corresponding to the maintenance buses 22 and 23.
LCCTL) 30-i and 31-1. The serial data controller 30-1 is the hash receiver 3
Hass 2 via 01-i and bus driver 302-i
3 and is connected to serial data controller 3
1-1 is connected to the bus 22 via a bus receiver 311-i and a bus driver 312-i.

FIG. 4 is a block diagram showing the configuration of each of the rows shown in FIG. 2. In Fig. 4, a MISK unit (MISK) 20 commonly provided to all the racks in one rack row.
7-i are serial data controllers (ADCL CTL) 30-i and 31-1, bus receivers 301-i, 311-i, and bus driver 302 shown in FIG.
-i and 312-i, the main processor (MP
U) 41, rack number setting board 42, register (REG)
) 43, rack fault indicator lamps 44-1 to 44-m, rack number decoder (NCD) 45, and synchronous digital serial data input/output devices (CDI) 46 and 47.

Bookshelf 203-4 (i = 1, 2, ..., or m
) is the register 48-1 and the differential/L/multiplexer (D
MPX) 49-i and Dora Iha 5O-i-1~5O
-i-1, packages 204-1 to 204-1,
The rack is provided with a common power supply package 51-1.

On the rack number setting board 42 of the misc unit 207-i, the numbers of all the racks belonging to the row are set in advance. The main processor (MPR) 41 is a maintenance bus 2
2 or 23 to serial data controller (8 DCL
CTL) 30-4 or 31-1, the address of the rack, rack, and package included in the alarm signal or out-of-service signal is analyzed, and the specified address is sent to the rack number decoder 45. The assigned rack number will be sent. The rack number decoder 45 decodes this and sends it to the rack 203-
Enables one of registers 48-1 to 48-m within 1 to 203-m and demultiplexer 49-1.
~49-m. This allows the synchronous digital serial data input/output device (DSI
) 46 and 47, respectively, are input to the enabled register and demultiplexer. As a result, the out-of-service signal indicator lamp 206 and alarm signal 205 provided in the designated puff cage
lights up. In addition, the rack fault indicator lamps 44-1 to 44-
The lamp corresponding to the rack belonging to the faulty package among the racks m is lit.

The bookshelf has a common power supply pancage 51-1, which supplies power to all packages within the shelf. therefore,
A pancase cannot be removed from the shelf unless the package inside it is taken out of service. According to this embodiment, since both an alarm signal and an out-of-service signal are displayed on each package, maintenance personnel will not accidentally remove a puff cage that is not out-of-service.

In addition, to change the mounting conditions, change the database stored in the memory in the system console 21, or change the number setting on the number setting board of the MISK unit (M15K) 207-i. Since no wiring work is required, it is possible to flexibly respond to mounting conditions.

〔Effect of the invention〕

As explained above, according to the present invention, all packages are provided with alarm signal display lamps, etc., and a database is used to individually light up alarm signals, etc. of packages in which a failure has occurred, so that in a system maintenance method, It is possible to prevent a maintenance worker from accidentally removing a package other than an out-of-service package, and also to quickly and accurately identify a faulty package by flexibly responding to changes in mounting conditions.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the system maintenance method of the present invention, FIG. 2 is a block diagram showing the system maintenance method according to an embodiment of the present invention, and FIG. 3 is an example of the connection of the maintenance bus in FIG. 2. FIG. 4 is a block diagram showing the configuration of each of the racks shown in FIG. 2, FIG. 5 is a diagram showing the racks in the station including the digital switching system, and FIG. FIG. 2 is a block diagram showing a centralized monitoring method. 1 and 2, -1 to 1-n are devices, 2 is a common control unit, 3 is a system console, 5 is a serial data bus, 6-1 to 6-n are status display means, 20 is a digital exchange main body, 21 is a system console, and 22 and 23 are maintenance buses.

Claims (1)

[Claims] A plurality of devices (1-1
a common control unit (2) that analyzes the status of ~1-n) and generates system status information; and receives the system status information from the common control unit (2) and centrally monitors the status of the plurality of devices. a system console (3), the system console (3) stores the mounting conditions of the device, edits the system status information, and generates a signal specifying the device in a maintainable state. The system console is connected to all of the devices by a serial data bus (5), and each of the devices has a status display means (6- 1 to 6-n), the system maintenance apparatus is configured to drive the status display means of a device that receives a signal indicating a maintainable status from the system console via the serial data bus. method.