JPH04344740A - Setting system for non-automatic tei - Google Patents

Abstract

PURPOSE:To eliminate a need for checking all terminal equipment one by one installed and in operation for confirming a set TEI value by devising the system such that the TEI value in operation is automatically included in a reply message and the message is displayed to a reader. CONSTITUTION:A subscriber bus compatible with an ISDN is provided with a TEI reader connected to a terminal equipment compatible with the ISDN, and the TEI confirmation procedure stipulated by the CCITT recommendations is utilized. The value reader sends a confirmation message with a confirmed TEI value in the step 102, and receives a request message for an identification check from an ISDN exchange in the step respectively 201. The message is received by a terminal equipment having the TEI value of this message in the step 202 and a reply message is returned in the step 204. The TEI value reader receives the reply message in the step 104, extracts the TEI value in the step 105 and displays it in the step 106. The TEI value not displayed is set to a new terminal equipment.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a terminal termination point identifier (hereinafter referred to as TEI) that is assigned to each of a plurality of terminals in an integrated service digital network (hereinafter referred to as ISDN).
non-automatic TEI, which sets a TEI other than automatic assignment (endpoint identifier)
Regarding the setting method.

0002

[Prior Art] Conventionally, this type of non-automatic TEI setting method has been used to set the TEI for each terminal when the terminals are installed on a private bus.
were assigned and set manually.

[0003] Generally, for terminal identification of ISDN terminals,
TEI values 64 to 126 are automatically assigned to each terminal according to the assignment procedure by the operator when making and receiving calls, while TEI values 0 to 63 are fixed as non-automatic TEIs. Set.

0004

[Problems to be Solved by the Invention] In the conventional non-automatic TEI setting method described above, the setting is performed manually each time a terminal is installed on a private bus. When deploying additional non-automatic TEI terminals, it is necessary to check and confirm each non-automatic TEI in use, which is very time-consuming and troublesome if the terminals are scattered throughout the premises. there were.

[0005] The present invention is a non-automatic TEI system which solves the above problems by connecting a TEI value reading device to an in-home bus, automatically reading set TEI values, and setting unset TEI values. The objective is to provide a setting method for

[0006]

[Means for solving the problems] Non-automatic TE according to the present invention
The basic configuration of the I setting method is the TEI assigned to each of multiple terminals of the ISDN (Integrated Service Digital Network).
(Terminal endpoint identifier terminal endpoint
In the non-automatic TEI setting method that assigns a TEI other than automatic assignment (tidentifier), the terminal number assigned to the TEI is connected to the in-house bus that connects the plurality of terminals, and is assigned to the ISDN exchange using the D channel. is sequentially specified from an initial value of zero, and when a message is requested to be sent to the home bus for each TEI value and a response is received, the TEI value that received the response is determined to be in use and displayed. The purpose is to determine that the TEI value displayed by driving the TEI value reading device is in use, and to assign and set the undisplayed TEI value to the newly installed terminal.

[0007] One embodiment of the TEI value reading device described in the basic configuration is connected to the home bus and connected to the ISD.
an S/T interface termination section for transmitting data via the D channel to a network termination device connected to the N exchange via a subscriber line, and for extracting echo bits sent from the network termination device; A counter that first sets the counter value to the initial value "zero" when receiving an increment instruction, and sets the counter value to increment by one step when receiving an increment instruction, and outputs a setting notification each time a setting is made, and a setting notification from this counter. a confirmation message assembling unit which, when received along with a counter value, assembles and outputs an identifier confirmation message using the counter value as a TEI number; and when receiving an identifier confirmation message from this confirmation message assembly unit, the S/T interface termination unit; a contention/priority processing unit that sends a request to use the D channel to the echo bit and performs contention/priority processing for the D channel upon reception of the echo bit; Deciphers the identifier check response message sent from the deployment terminal,
A TEI extractor that extracts the TEI value of this terminal, and a TEI extractor that extracts the TEI value of this terminal.
TEI displayed after receiving the TEI value extracted by the EI extraction unit
When the display unit receives the TEI value extracted from the TEI extraction unit within a predetermined time period from the time when it is notified that the identifier confirmation message has been sent from the competition/priority processing unit, the TEI value is The counter control section controls the counter so that the counter is incremented one step, and instructs the counter to advance one step when the predetermined time limit is exceeded.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a procedure diagram showing an embodiment of the present invention, FIG. 2 is a block connection diagram showing an example of realizing FIG. 1, and FIG. 3 shows an example of message transmission and reception in which FIG. 1 is realized in FIG. 2. This is a time chart.

First, related devices will be explained with reference to FIG.

ISDN exchange 1 shown in FIG.
It is connected to the ISDN basic access network terminal device 3 via the basic interface channel structure (2B+D).

The ISDN basic access network termination device 3, together with an in-home bus terminating resistor 4, connects a plurality of terminals 5 and 6 via an up line 7 and a down line 8 of the in-home bus.

Similar to the terminals 5 and 6, the TEI value reading device 10 provided in the present invention is connected to the up line 7 and down line 8 of the domestic bus.
and sends and receives messages to and from the ISDN switch using the D channel.

The TEI value reading device 10 has an S/T interface termination unit 11 at an S/T point which is a user/network interface specification point of ISDN, and a TEI value outputting device that outputs a TEI value.
An addition counter 12, an identifier confirmation message assembling unit 13 that assembles an identifier confirmation message using the counter value of the TEI addition counter 12 as a TEI value, and a D channel that assembles the identifier confirmation message and requests transmission to the D channel for competition/priority processing. Competition/priority processing unit 1
4 and CCITT Recommendation I.4 on the residential bus down line 8. 430
A TEI extraction unit 15 that takes in the echo bit specified by the above and extracts a TEI value from an identifier check response sent by one of the terminals 5 and 6, a TEI display unit 16 that displays the extracted TEI value, and a TEI display unit 16 that displays the extracted TEI value. T if the specified time has elapsed after sending the value and D channel identifier confirmation message.
It has an addition counter control section 17 that notifies the EI addition counter 12 and controls the counter value.

Next, FIG. 3 will be explained. Figure 3 shows the C.C.C.
ITT Recommendation I. Terminal termination point identifier (
TEI) indicates the layer 2 frame sequence defined in the verification procedure. In the figure, it is shown as TEI=n.

As shown in the figure, between the terminal side and the network side, on the subscriber line, when the terminal side sends an identifier confirmation message 21 with TEI=n to the network side, the network side issues an identifier check request with TEI=n. A message 22 is sent. On the terminal side, the terminal with TEI=n returns an identifier check response message 23 with TEI=n in response to the identifier check request message 22 with TEI=n.

The present invention will now be described with reference to FIG. 1 together with FIGS. 2 and 3.

First, when the TEI value reading device 10 is driven, the TEI addition counter 12 changes the counter value to the initial value "
"0" (100) and notifies the identifier confirmation message assembling unit 13.

The confirmation message assembling unit 13 generates an identifier confirmation message 21 with TEI=0 specified in the CCITT recommendation.
The contention/priority processing unit 14 investigates the availability of the D channel on the in-home bus up line 7 via the S/T interface termination unit 11 (101). )do.

After confirming the availability of the D channel, the competition/priority processing section 14 transmits the identifier confirmation message 21 formed by the confirmation message assembling section 13 to the D channel (102).
), and also notifies the addition counter control section 17 of this transmission. The addition counter control section 17 starts a predetermined time-limited measurement (103).

The identifier confirmation message 21 transmitted in step 102 is received by the ISDN exchange 1 via the home bus up line 7, the ISDN basic access network terminal device 3, and the subscriber line 2 (200). ISDN switch 1 is CC
According to the provisions of the ITT recommendation, an identifier check request message 22 is sent to the ISDN basic access network terminal device 3 via the subscriber line 2 (201), and this identifier check request message 22 runs on the down line 8 of the domestic bus and is sent to the terminal 5, Reach 6.

[0022] The terminals 5 and 6 monitor the in-house bus down line 8,
A message with a TEI value assigned to itself is fetched from the running messages.

[0023] The identifier check request message 22 with TEI=0 transmitted from the ISDN exchange 1 in step 201 is received by the terminal (for example) 5 with TEI=0 (202), taken in as an incoming call message (203), and sent to the CCITT.
According to the recommendation, an identifier check response message 23 with TEI=0 is transmitted to the home bus up line 7 (204).

The identifier check response message 23 on the home bus up line 7 is sent to the ISDN basic access network terminal device 3.
The signal then reaches the ISDN exchange 1 via the subscriber line 2, is looped back at the ISDN basic access network termination device 3, and is carried on the echo bit of the home bus down line 8.

[0025] In the TEI value reading device 10, the S/T interface terminal unit 11 receives the identifier check response message 23 from the echo bit on the domestic bus down line 8 (104).
and output to the TEI extraction section 15.

The TEI extraction unit 15 extracts the TE identifier (TEI)=0 from the identifier check response message 23 (1
05) and is stored in the TEI display section 16 and displayed (
106) and notifies the addition counter control unit 17.

The addition counter control section 17 is the TEI extraction section 1
When the TEI value is received from step 5, the time period measurement started in step 103 is stopped, the counter value of the TEI addition counter 12 is checked (107), and when the counter value is less than 126,
Advance the counter of TEI addition counter 12 by one step (108)
On the other hand, if the counter value is 126 or more, the procedure ends.

Further, after starting time measurement in step 103, when the time limit is exceeded (110) without receiving an identifier check response message in step 104, the addition counter control section 17 changes the counter value of the TEI addition counter 12. is connected to step 107 for checking.

By the above procedure, TEI addition counter 1
The counter values 2 operate sequentially corresponding to TEI values 0 to 126 and display the value in use.

Although this embodiment has been described with reference to a functional block diagram of the TEI value reading device, the block configuration and functional arrangement of the blocks are free, and the above description does not limit the present invention.

[0031]

[Effects of the Invention] As explained above, the non-automatic TE of the present invention
The setting method of I is equipped with a TEI value reading device that connects to a home bus using an ISDN basic interface in the same way as a terminal using an ISDN basic interface, and complies with CCITT Recommendation I.
．． The terminal termination point identifier (TEI) verification procedure specified in CCITT Recommendation I.441 and CCITT Recommendation I.441. By reading the TEI value of the terminal using the echo bit specified in 430,
One or more already deployed ISs with layer 1 links configured
TE used by the terminal using the DN basic interface
Since the I value can be automatically displayed for each terminal, there is an effect that a TEI value that is not displayed can be set to a newly installed terminal without manually checking the in-use TEI value for one terminal.

[Brief explanation of the drawing]

[Figure 1] TE in use of the non-automatic TEI setting method of the present invention
It is a procedure diagram showing an example of I value confirmation.

FIG. 2 is a system block diagram showing an example of implementing FIG. 1;

FIG. 3 is a message procedure diagram according to the CCITT recommendation, showing an example for implementing FIG. 1;

[Explanation of symbols]

1 ISDN exchange 2 Subscriber line 3 Network termination device 5, 6 Terminal 7, 8 In-home bus 10 TEI value reading device 11 S/T interface termination section, 12
Counter 13 Confirmation message assembly section 14 Conflict/priority processing section 15 TEI extraction section 16 TEI display section 17 Counter control section 21 Identifier confirmation message

Claims (2)

[Claims] [Claim 1] Integrated Service Digital Network (hereinafter referred to as IS)
A terminal endpoint identifier (hereinafter referred to as TEI) is assigned to each of multiple terminals in a DN.
In the non-automatic TEI setting method that assigns a TEI other than automatic assignment (tidentifier), the terminal number assigned to the TEI is connected to the in-house bus that connects the plurality of terminals, and is assigned to the ISDN exchange using the D channel. is sequentially specified from an initial value of zero, and when a message is requested to be sent to the home bus for each TEI value and a response is received, the TEI value that received the response is determined to be in use and displayed. A non-automatic TEI setting method characterized in that the TEI value obtained by driving the TEI value reading device is determined to be in use, and a non-displayed TEI value is assigned to a newly installed terminal. 2. The TEI value reading device transmits data via a D channel to a network termination device connected to the home bus and connected to an ISDN exchange via a subscriber line, while transmitting data from the network termination device to the network termination device connected to the ISDN exchange via a subscriber line. An S/T interface terminal part that extracts the transmitted echo bit, and when receiving a drive, first sets the counter value to the initial value "zero", and when receiving an increment instruction, sets the counter value to one step. a counter that outputs a setting notification each time a setting is made; a confirmation message assembling unit that assembles and outputs an identifier confirmation message using the counter value as a TEI number when receiving a setting notification from this counter together with a counter value; a contention/priority processing unit that sends a request to use the D channel to the S/T interface termination unit when receiving an identifier confirmation message from the message assembly unit, and performs contention/priority processing for the D channel upon reception of the echo bit; , said S/
A TE that decodes the identifier check response message sent from the deployed terminal and extracts the TEI value of this terminal from the echo bits received via the T interface termination.
an I extractor, a TEI display section that receives and displays the TEI value extracted by the TEI extractor, and a TEI display section that receives and displays the TEI value extracted by the TEI extractor, and within a predetermined time period from the time when the contention/priority processing section receives notification that an identifier confirmation message has been sent. , when receiving the TEI value extracted from the TEI extractor, controls the counter so that the TEI value is incremented by one step, and when the predetermined time limit is exceeded, the counter instructs to increment the TEI value by one step; The non-automatic TE according to claim 1, further comprising a control section.
I setting method.