JPS6359039A - Data exchange line exchange system - Google Patents

Abstract

PURPOSE:To attain a process note check of an extended data terminal line during on-line operation by providing a memory storing data in response to the service state of each data terminal line to a line concentration multiplexer at the on-line operation. CONSTITUTION:A data representing whether a line is in service or not for each data terminals 31-3n is stored in a memory 17 depending on the application of station condition from a control section 4 at the on-line operation. Then an operation section 8 selects and sets a data terminal line executing the process note check to start a test section 7. A micro-processor 13 reads the setting data of the operation section 8. Then in case of off-duty, a loopback data reflected from a line adaptor section 10 of a selected and set data terminal line are read, the data are collated with the set data by the operation section 8 to check the normality of the process notice in the line adaptor package and the cable in the device or the like and the result of check is displayed on the operation section 8.

Description

[Detailed Description of the Invention] [Summary] A data exchange line switching system, in which a plurality of data terminals are connected to a time division communication path device via a line correspondence section provided in a line concentrator and multiplexer. This article relates to a self-checking method for checking the data and the internal information of the device when the line-of-sight correspondence unit is shared in an exchange system.

[Field of Industrial Application] The present invention relates to a data exchange line switching system, and more particularly to a data exchange line switching system that can test added lines during online operation.

[Prior Art 1] FIG. 4 is a diagram showing an example of the configuration of a conventional data exchange circuit switching system of this type. In FIG. 1, 1 is a time-division channel device, 2 is a concentrator multiplexer connected to the time-division channel device 1, and 31 to 3n are data terminals connected to the concentrator multiplexer.

FIG. 5 is a configuration block diagram showing an example of the line concentrator/multiplexer 2 in FIG. 4. In the figure, 4 is a control unit (CT
L) and is connected to the bus 6 via the switch section (SW) 5. 7 is the test section (TST), 8 is the operation section L
The test section 7 and the operation section 8 are interconnected and connected to the bus 6. 91 to 9m are serial/parallel converters connected to the bus 6.

101 to 10T+ are line corresponding units (LU) corresponding to the data terminals 31 to 3η, one end is connected to the corresponding serial/parallel exchange unit 91 to 9m, and the other end is connected to the corresponding data terminal 31 to 3n. has been done.

FIG. 6 is a block diagram showing an example of the test section 7 in FIG. 5. As shown in FIG. In the figure, 11 indicates the operation unit 8 and the bus 12.
Operation unit interface for connecting LJKL I
NF). The bus 12 includes a microprocessor (μ
P)13. Read-only memory <ROM>14. Random access memory (RAM>15). A bus interface (Bus INF>16) for connection with bus 6 is connected.

In the conventional system configured as described above, the injection self-check is performed by disconnecting the control section 4 from the switch section 5 and placing it in an off-line operating state, as shown in FIG. Then, in this state, a data terminal line for carrying out an order check is selected and set using the operation section 8, and the testing section 7 is activated. The microprocessor 13 provided in the test section 7 has a ROM1
4 and RAM 15 are used to read the setting data of the operation unit 8 under microprogram control, read the return data returned from the line correspondence unit 10 of the selected data terminal line, collate both data, and store it in the line correspondence unit package. Check the normality of the installation work and cable work inside the equipment. These check results are then displayed on the operation unit 8.

[Problems to be Solved by the Invention] However, in such a conventional data exchange circuit switching system, it is impossible to detect errors during installation after in-service. may have a negative impact on people.

Moreover, the normality of the injection is confirmed for the first time by actually connecting the data terminal and communicating, which is undesirable.

The present invention has been made in view of these points, and
The object of the present invention is to provide a data exchange circuit switching system that can perform an order check for added circuits during online operation.

[Means for Solving the Problems] FIG. 1 is a block diagram of the principle of the data exchange circuit switching system of the present invention, and the same parts as in FIG. 5 are designated with the same reference numerals. In the figure, 17 indicates each data terminal 31 to
A memory (TBL>) in which data indicating whether the line corresponding to 3η is in service or out of service is stored in advance.
It is connected to the.

[Operation] Predetermined data is stored in the memory 17 from the control unit 4 during online operation. Then, the test section 7
After reading the data stored in 7 and confirming that the predetermined line is out of service, the line handling section 10 executes a data return test to check the order.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram showing an embodiment of the present invention, and the same parts as in FIG. 6 are denoted by the same reference numerals. In the figure, memory 17 is connected to bus 12.

The operation of order checking in the system of the present invention configured as described above will be explained.

Work order checking during offline operation is performed in the same way as in conventional systems.

During online operation, data indicating whether the line of each data terminal 31 to 3n is in service or out of service is first stored in the memory 17 by inputting the same condition from the control unit 4.

These data, for example, as shown in FIG. 3, are stored for each line as I11+ during service and as "Ooo" during non-service.

Thereafter, the operator selects and sets the data terminal line on which the work order check is to be performed using the operating section 8, and starts the testing section 7. The microprocessor 13 reads the setting data of the operation unit 8. Then, the data of the corresponding data terminal line stored in the memory 17 is read, and if the data is out of service, the line corresponding section 10 of the selected data terminal line is read.
The operation unit 8 reads the return data returned from
Check the normality of the line support part package and the cables inside the device by comparing it with the setting data of
The check results are displayed on the operation unit 8.

On the other hand, if the corresponding data terminal line stored in the memory 17 is in service, the read data is rejected and no order check is performed.

[Effects of the Invention] As explained in detail above, according to the present invention, the line concentrator multiplexing device is provided with a memory for storing data according to the service status of each data terminal line during online operation. It is possible to provide a data exchange line exchange system that can perform an order check on a data terminal line during online operation.

[Brief explanation of drawings]

FIG. 1 is a principle block diagram of a data exchange circuit switching system of the present invention, FIG. 2 is a block diagram of a configuration showing an embodiment of the present invention, and FIG. 3 is a diagram showing the configuration of a memory used in the present invention.
FIG. 4 is a block diagram of the configuration of a conventional data exchange circuit switching system, FIG. 5 is a side view of the configuration of a conventional line concentrator and multiplexer, and FIG. 6 is a side view of the configuration of a conventional test section. 1, 2, and 4, 1 is a time division channel device, 2 is a concentrator, 31 to 3n are data terminals, 4 is a control section, 7 is a test section, 8 is an operation section, Reference numeral 10 indicates a line corresponding section 17 which is a memory. −〇−

Claims (1)

[Scope of Claims] A plurality of data terminals (3_1) to (3_n) are connected to line correspondence units (10_1) to (1) provided in a line concentrator and multiplexer (2).
In a data exchange circuit switching system connected to a time division channel device (1) via a time division channel device (1), each data terminal (3_1) to (3_n) is
); a memory (17) that stores in advance data indicating whether the line corresponding to the line is in service or out of service; 1. A data exchange circuit switching system comprising: a test section (7) for performing a data return test in the section (10).