JPH01176128A - Line setting check system for time division multiplex system - Google Patents

Abstract

PURPOSE:To attain the check to other lines than a line having interruption in a system by using only check information generated from line setting information to check the setting of line in the unit of a relay line. CONSTITUTION:The line setting information 1 comprising 'transmission speed', 'own station SYS No', 'own station CH No', 'end station SYS No', 'end station CH No' and 'relay line No' is converted into a check element 2 to sort the line setting data in the unit of relay line. The bypass channel is set by the line setting and the one setting information 3 is the setting information in this case. The line setting information 3 is converted into check elements 4, 5 to be made of the same constitution as the check element 2 and converted into time check element in the unit of lines from all line settings. The check elements in the unit of lines are rearranged to generate a check element table. Thus, the line setting is to be checked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a line setting check method for a time division multiplex system, and more particularly to a line setting check method for a time division multiplex system in which line settings are possible.

[Conventional technology]

When checking the line settings of a time division multiplexing system that transmits information by time division multiplexing, the time division multiplexing device that is the control station of the time division multiplexing system, an external control device, or a person must check the line settings of the entire system at once. Check when making settings. Based on this, necessary line setting information is transferred to each time division multiplexing device. Such a centralized line check method is used in time division multiplex systems.

[Problem that the invention seeks to solve]

In the conventional centralized line setting check method mentioned above,
If the time division multiplexing device or external device of the control station of the time division multiplexing system is in failure, it is impossible to check the line setting even if the line setting is possible with another time division multiplexing device. Also, if a relay line within the system becomes disconnected or if the control station or external control device becomes uncontrollable,
Line setting check is not possible. When checked by humans, there is a drawback that it takes a long time to find errors.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate such drawbacks and provide a line setting check method for a time division multiplex system that can check line settings for each trunk line using only check information generated from line setting information.

[Means for solving problems]

The present invention provides two or more time-division multiplexing devices that have a line setting function, can change time slot allocation, and can be remotely controlled by constantly allocating control channel slots, and a connection between these time-division multiplexing devices. A second method for checking the line settings of a time division multiplex system, in which line setting information is checked using line setting information of a time division multiplex system consisting of one or more trunk lines connected, and the line setting information is converted into a check element for each trunk line. Converted,
The present invention is characterized in that the check elements are rearranged by a predetermined sorting method to generate a check element table for each trunk line, and the line setting is checked using the check information generated from this check element table.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram of line setting information and check elements, showing one embodiment of the present invention. This line setting function is information related to a time division multiplex system. This time division multiplexing system consists of two or more time division multiplexing devices that have a line setting function, can change time slot allocation, and can be remotely controlled by constantly allocating control channel slots, and these time division multiplexing devices. A system consisting of one or more relay lines connecting

In the line setting information related to such a system, the first
Line setting information 1 shown in the figure is information when the channel of the own station is the starting end. The "transmission speed" of this line setting information 1 represents the speed of data transmission between the local station and the terminal station, which is the other party's station.

“Own station SYS No.” represents the system number of the own station, and “Own station CHNo.” represents the channel number of the system of this own station.

“Final SYS No.” represents the final system number, and “Final CH No.” represents the channel number of this final system.

“Relay line No.” represents the relay line number between the local station and the final station.

Such as “transmission speed”, “own station SYS No.”
, “My station CH No.”, “Final station 5ys No.”, “
The line setting information 1 consisting of the final CH No., "", and "relay line NO. 1" is converted into a check element 2 in order to sort the line setting data for each trunk line.

“Relay line No.” of this check element 2.

“Transmission speed” is “relay line N0,” in line setting information 1.
, corresponds to "transmission speed".

“Younger SYS No.” is the line setting information 1 “
Own station SYS No,”,”Last station SYS No,
'' represents the system number with the smallest number among the system numbers represented by ``CHNO1' of the system with the smallest number'' represents the channel number of this system with the smallest number.

"Late number SYS No." represents the system number of the later number among the system numbers mentioned above.
"CHNo. of S" represents the channel number of the system of this serial number.

Such "moderate times! No," "transmission speed".

“Wakaban SYS No.”, “Wakaban SYS C11NO
,11,'Late shift SYS No, ",'Late shift SYS
Check element 2 consists of CHNo.

Now, as mentioned above, the check element 2 is a converted version of the line setting information 1. This line setting information 1 is the setting when the channel of the own station is the starting end. By the way, the line settings also include settings for bypass channels. Line setting information 3 is setting information in this case.

The "transmission speed" of this line setting information 3 represents the speed of data transmission between the amount of bacteria and the final stage.

“Bacterial amount SYS No.” represents the system number of the bacterial amount, and “Bacterial amount CHNo.” represents the channel number of this bacterial amount system.

“Final SYS No.” represents the final system number, and “Final CH No.” represents the channel number of this final system.

“Relay line ■No,” “Relay line ■No,”
represents the number of the relay line related to data transmission by the bypass channel between the bacterial load and the final state.

Such “transmission speed”, “bacteria amount SYS No.”
,”Bacteria amount CHNo,”,’Final 5YSNo,”,“
Final CH No. ”, “Relay line No.”, “
The same exchange as that for line setting information 1 is performed for line setting information 3 consisting of trunk line ■No. Converted to check elements 4 and 5.

This conversion converts all line settings into line-by-line check elements.

Here, these check elements for each line are further rearranged as follows to create a check element table. In this sorting, check elements for each line are sorted in descending order of (i) "transmission speed";

(1) At the same “transmission speed”, “younger number 5YSNo.
” Sort by youngest.

(iii) In the same "youngest SYS No.,", sort in ascending order of "CH No.".

Table 1 shows an example of the check element table obtained as a result of this sorting.

Table 1 In Table 1, the check element “transmission speed” is “1”.
9.2 kbit/s”, “19.2 kbit/s”
”, “19.2kbit/s”, “9.6k
bit/s', such as "2.4 kbit/s",
They are arranged in descending order. Among these “transmission rates”, there are three identical “transmission rates”, namely three “19.2
kbit/s”, each “younger SY
Sorting is done by S No., and these are "5YSI", "5Y81", "5YS2"
They are arranged in ascending order of system number, as in . Furthermore, among these "younger number SYS No.," there are two identical "younger number 5YsNo.," that is, two "SYS
S 1” is sorted by each “CHNo, ”.These are CHI”, “
The channels are arranged in descending order of channel number, such as "CH2".

The check element table for each trunk line generated in this way will be the same table for each opposing line if the line settings are normal. Here, the CRC (cyclic redundancy check) of the check element table for each trunk line is
ndancy check) and sends the CRC value as check information to the opposing trunk line. When a CRC value is received as check information, it can be determined whether the line settings for each trunk line are normal by checking whether the CRC value is the same as the CRC value of the own station corresponding to the receiving line.

In this way, this embodiment converts the line setting information into check elements for each trunk line, and after rearranging the check elements to make the check element table the same for each opposing trunk line, this check is used as check information. The line settings for each trunk line can be checked using the CRC value in the element table. Further, according to the present embodiment, line setting checks can be performed in a short time with the time division multiplexing device facing the opposite side via a relay line.

〔Effect of the invention〕

As explained above, according to the present invention, the line settings for each relay line can be checked using only the check information generated from the line setting information, so even if there is a line break in the system, other lines can be checked. This has the effect of allowing you to check against. Furthermore, since checks are performed in a distributed manner, it is possible to determine whether or not switching can actually be performed when a local line setting change is desired using only the change notification.

[Brief explanation of the drawing]

FIG. 1 is a diagram of line setting information and check elements showing an embodiment of the present invention. 1.3... Line setting information 2.4... Check elements Agent Patent attorney Yoshiyuki Iwasa

Claims (1)

[Claims] (1) Connect two or more time division multiplexing devices that have a line setting function, can change time slot allocation, and can be remotely controlled by constantly allocating control channel slots, and these time division multiplexing devices. A time division multiplex system line setting check method for checking line settings using line setting information of a time division multiplex system consisting of one or more trunk lines, the line setting information being converted into check elements for each trunk line,
A time division multiplex system characterized in that the check elements are rearranged by a predetermined sorting method to generate a check element table for each trunk line, and the line setting is checked using the check information generated from the check element table. Line setting check method.