JPS6268330A - Setting method for route identification code - Google Patents

Abstract

PURPOSE:To generate a predetermined route identification code by a route identification code generating circuit by inserting a prescribed cartridge among plural cartridges connected internally in advance corresponding to the route identification code to a route identification code setting terminal section in a line changeover device. CONSTITUTION:Plural female contacts 121 of a cartridge 12 are plugged to plural male contacts 91 provided to a route identification code setting terminal section 9 fixed to a route identification code generating section 8. In the cartridge 12, the connection of the female contacts is applied corresponding to each route identification code to generate a prescribed route identification code. Thus, only the digital signal having the said identification code is sent from the line changeover device to a multiplex converter, and when sending the digital signal to an opposite station, the route identification code is supplied. Thus, the route identification code is set by inserting the cartridge to the route identification code setting terminal section 9.

Description

[Detailed Description of the Invention] [Summary] In a route identification code setting method, by inserting an internally connected cartridge corresponding to a route identification code into a route identification code setting terminal provided in a line switching device. Since this device is configured for a specified line, this can be done easily and without error.

[Industrial application field]

The present invention relates to an improvement in a route identification code setting method used, for example, in a wireless line.

FIG. 2 shows a configuration diagram of a wireless line.

In the figure, for example, from the multiplex converter 1 of the carrier terminal station,
A digital signal is applied to the line switching device 2. Here, ■ Bipolar unipolar conversion ■ Insertion ring of frame bits and auxiliary signals for wireless line monitoring control ■ Scrambling ■ Differential conversion, etc. are performed, and then the data is sent to the transmitting/receiving device 3.
The carrier wave is modulated and frequency converted and sent to the other station at frequency f.

On the other hand, on the receiving side of the partner station, the transmitter/receiver 41 and line switching device 5 perform the operation opposite to that on the transmitting side to extract the original digital signal and send it to the multiplex converter 6.

Here, since the number of frequencies used for wireless lines is limited, we try to use the same frequency effectively by changing the angle of the antenna or changing the area of use. radio waves may be received.

For example, the transmitting/receiving device 4 receives radio waves (frequency f) from the transmitting/receiving device 3, which is a partner station, and also receives radio waves (frequency #!1.f) from the transmitting/receiving device 7. In such a case, since the former radio waves are being received more strongly than the latter radio waves, the latter are suppressed and have little influence.

However, when the former radio wave is cut off, only the latter radio wave is received, so the transmitting/receiving device 42 and line switching device 5 demodulate this radio wave, extract a digital signal, and send it to the multiplex converter 6. This device 6 does not issue an alarm even though it has received the correct digital signal.

Therefore, a route identification code is attached to each line to identify the line, and when a code other than the predetermined route a code is detected, it is assumed that radio waves from a different route have been received, and the digital signal is switched from the line switching device 5. The data is not sent to the multiplex converter 6.

At this time, a route for transmitting and receiving a predetermined route identification code)
It is necessary to be able to easily and error-freely set the &J separate code generation.

[Conventional technology]

FIG. 3 shows a configuration diagram of a conventional example of a route identification code setting method.

As shown in FIG. 3 (al), a connection line is used to connect predetermined terminals 91.92 and 10.93 of the route identification code setting terminal section 9 provided in the route m-specific code generation circuit 8 in the line switching device, for example. A predetermined route identification code is generated by shorting one by one, but the transmitting side must also do the same.

FIG. 3 (bl) is a dip switch provided between each terminal, and the switches are turned on or off one by one to short-circuit between predetermined terminals in the same manner as in FIG. 3.

[Problem that the invention seeks to solve]

As explained above, the connection of the route identification code setting terminals is manually changed one by one so that the route identification code generation circuit generates a predetermined route identification code.

In such a method, the number of bits of the root identification code increases,
Furthermore, there is a problem in that there is a possibility of erroneous connections when settings must be made quickly, such as when replacing a faulty panel.

[Means for solving problems]

The above problem can be solved by inserting the internally connected cartridge 12 corresponding to the route identification code into the route identification code setting terminal section 9 in the line switching device and setting the line switching device for the line. This problem is solved by the route identification code setting method of the present invention.

[Effect]

The present invention enables route identification by inserting a predetermined cartridge 12 from among a plurality of cartridges internally connected in advance corresponding to each route identification code into a route identification code setting terminal section 9 in a line switching device. The code generation circuit generates a predetermined route identification code.

Therefore, the route identification code can be easily set, and the possibility of erroneous connection is reduced.

〔Example〕

FIG. 1 shows a block diagram of an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures.

As shown in the figure, for example, a plurality of female contacts 121 of the cartridge 12 are inserted into a plurality of male contacts 91 provided on a route identification code setting terminal section 9 fixed to a route identification code generation circuit 8. Connections between female contacts of the cartridge are made in correspondence with respective route identification codes.

Therefore, since a predetermined route identification code is generated, the digital signal with this identification code is not sent from the line switching device to the multiplex converter, and when the digital signal is sent to the other station, this route a separate code is used. will be added.

In this way, the route identification code is set by inserting the cartridge into the route identification code setting terminal section 9. Therefore, for example, when replacing the currently used route identification code generation circuit 8 in which a failure has occurred with a spare panel, , it is possible to easily and quickly set the route identification code without error.

It goes without saying that the route identification code setting terminal section may be fixed anywhere.

〔Effect of the invention〕

As described in detail above, according to the present invention, the route identification code can be set easily, without error, and quickly.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention, Figure 2 is a configuration diagram of the wireless line. FIG. 3 shows a configuration diagram of a conventional example. In the figure, 9 is Lou; - identification code setting terminal section; ′／ Oni Ning Eshi ■ Gland's I*R1Ln1 ¥2 Rule

Claims (1)

[Claims] When a line switching device is used on a line in which a route identification code is set, a cartridge (12) internally connected in correspondence with the route identification code is connected to the route identification code in the line switching device. A route identification code setting method characterized in that the line switching device is configured for the line by inserting it into a setting terminal section (9).