JPS6033775A - Data telephone terminal test equipment - Google Patents

Abstract

PURPOSE:To attain incoming to a test equipment with one telephone number independently of the communication speed by detecting an identification signal from an outgoing terminal in testing a data telephone terminal device via a telephone line to switch the communication speed of the test equipment. CONSTITUTION:When the data telephone terminal device to be tested hooks off and dials a specific subscriber number and the call is incoming to a data telephone terminal test equipment 40, since a response circuit section 400 conducts automatically ring trip to an incoming call signal and passes through the signal, a reception preparation end tone transmission section 402 returns a preparation end tone to an outgoing terminal device. Since the outgoing terminal device transmits communication speed identification information in receiving the tone, a PB signal reception section 405 detects it and transmits the communication speed identification information to a communication speed identification switching section 406, which commands an FM signal transmission/reception section 407 and a control section 409 to a corresponding speed, a timing control section 408 is set to a prescribed value and the data is transmitted and received between the outgoint terminal device and the test terminal device in the set communication speed afterward and the terminal function test is conducted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data telephone terminal testing device, and more particularly to a data telephone terminal testing device for testing data telephone terminals that transmit and receive data using a frequency modulation (hereinafter referred to as FM) signal method via a general telephone line. Regarding.

Conventionally, this type of data telephone terminal (hereinafter simply referred to as terminal)
When performing a function test, prepare data telephone terminal test equipment (hereinafter simply referred to as terminal test equipment) that matches the communication speed of the calling terminal, assign a subscriber number to each terminal test equipment, and make sure that the calling terminal Connection is made by dialing the subscriber number of the terminal testing equipment.

However, this method accommodates terminal test equipment with different subscriber numbers for each of the 5 communication speeds, so the disadvantage is that the more communication speed types the more line equipment is required. This method has the disadvantage that it is extremely complicated because it requires dialing a number.

An object of the present invention is to eliminate the above-mentioned drawbacks by adding simple means to the terminal testing equipment, so that calls can be received at the terminal testing equipment using one subscriber number (pilot number) regardless of the communication speed. The purpose of the present invention is to provide a data telephone terminal testing device that has the following characteristics.

According to the present invention, in a data telephone terminal testing device that tests a data telephone terminal that transmits and receives data using a frequency modulation signal method via a general telephone line, when an incoming call from the data telephone terminal is received, a receiving ready sound sending means to send back; a PBM@- receiving means for receiving communication speed identification information composed of a PB double signal combination from the data telephone terminal; and the data identified by the output of the FB signal receiving means. and communication speed switching means for switching the communication speed of the data telephone terminal testing device to a speed equal to the communication speed of the telephone terminal.

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an example of a telephone network using general data telephone terminal test equipment and sound.

In the figure, the general telephone network is connected to data telephone terminals A and B.
(hereinafter referred to as locations A and D) 10. Terminal exchanges jRh and B (hereinafter referred to as LSA and LSI3) that accommodate all 10.20 respectively.11.
21, a trunk line 30 that connects the outgoing trunk (hereinafter referred to as 0GT) 12 of L8A11 and the incoming trunk (hereinafter referred to as ICT) 22 of LaB21, and LaB21 has an internal trunk (hereinafter referred to as 1 (JT) 23) and a data telephone terminal. Test equipment (
AATE) 40. Furthermore, AAT E
40 is assigned a subscriber number. When performing a function test of a terminal accommodated in another station, for example, D position A 10
75KAATE40 subscriber number is generally known as vcD A10-L8A11-OG
T12-Relay line 3O-IC'l'22-LaB51-
AATB40 train is set up and test call is AATE4
Receive a call at 0. In addition, when performing a function test of your own terminal, for example, D station B20 dials the subscriber number of AATE40. As is generally known, D station I320-L
A test call similarly arrives on the train SB21-IUT23-LaB21-AATE40. Therefore AAT
The E40 can perform predetermined functional tests of the DTEI, A10, or D location B20 via these trains.

Next, FIG. 2 is a circuit block diagram showing an embodiment of the data telephone terminal testing device of the present invention. In the same figure, A
AT B 4 Q is a response circuit (hereinafter referred to as ANS) 400 that automatically responds to an incoming call signal (for example, 16 [1z signal)] from the LaB 21 (shown in FIG. 1), and a relay ring 4.
01 to the AN8400 (for example, the second beep).
S ) 402 and a general communication path coupling part (hereinafter referred to as 5P) 4
03, switching contact (hereinafter referred to as CH) 404 that switches all inputs from 8P403 and outputs it, and CA1404'c valve 5
Communication speed identification information from P403 (PB double signal combination)
A PB signal receiving unit (hereinafter referred to as PB EC) 405 that receives the PB signal receiving unit (hereinafter referred to as PB EC) 405, and a communication speed identification switching unit (hereinafter referred to as 8DC1AOc) that identifies the communication speed of the originating terminal based on the output of the PB EC 405 and sets the communication speed of AATE 40 to the same speed. J
-qnrang's instructions set 4 mountain Shinzouma L fc after CH404t-butt-t, FM between sp 403
FM signal transmitter/receiver unit (
pMtt,s) 407 and l'B EC405
and timing control of FMILS 407? 1 Transmission/reception timing control unit (hereinafter referred to as TM) 40B and DTS
402. A control unit (hereinafter referred to as CTL) that is connected to CH404, 5DC406, TM408, etc. and performs predetermined sequence control.
)409.

Next, the operation of this embodiment will be explained.

ANS400 is 1 (when it receives the llz signal, it automatically rings and trips) (through, so DT8402
sends back a reception ready tone via the relay ring 401.

When the originating terminal (not shown) receives this reception ready tone, it transmits the communication speed identification information, so the PBREC
405 is ANS400.

This is received via the relay ring 401, 5P403 and CH404. When the first digit of this PB double signal is received, P
The B EC405 has been conveyed to Kim TM40B.
At a predetermined timing, o8 instructs 1) Ta 205 to stop sending out the reception-ready juice via CTL 409. Next, when the PB EC 405 transfers the received communication speed identification information i to the SDC 406, the 5DC 406
identifies all communication speeds of the calling terminal, and specifies FMIL8a07.
The communication speed of the AAT E40 is set to be equal to the identified speed, and the CTL 409 is informed of this.

Since CTL409 switches CH404, S
P 403 is connected to FMILS 407 . At this time, CTL409 instructs TM408 to take a predetermined timing, and after this timing, TM408 instructs FMR8407 to send out a response sound (for example, 165011z k for about 1.5 seconds).This response sound is CH404゜5P403.
Relay wire ring 401. When the transmitting terminal receives the signal via the AN8400, the transmitting terminal switches from the PB signal transmitting mode to the FM signal transmitting/receiving mode, and thereafter transmits and receives data between the transmitting terminal and the AATE40 (terminal function) at the set communication speed. Tests) are conducted using FM signaling. After this test is completed, the 1ffi train is restored by a disconnection signal from the originating terminal.

As is clear from the above explanation, according to the data telephone terminal testing device of the present invention, the communication speed of one terminal testing device can be automatically switched and set according to the communication speed of the calling terminal. It becomes possible to receive calls to the terminal testing equipment with one number regardless of the speed. Therefore, not only the line equipment is saved, but also the troublesomeness of dialing by the user is eliminated.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a telephone network using a general data telephone terminal testing device, and FIG. 2 is a circuit block diagram showing an embodiment of the data telephone terminal testing device of the present invention. In the figure, IQ, 20... Data telephone terminals A, B (D position A, D position I3), 11, 2.1...
・・・・Terminal station/switching machine A, B (LSA, LSB), 12・
...outgoing trunk ((JGT), 22-...
Incoming trunk (ICT), 23... In-house trunk (I (JT). 30-... Trunk line, 40... Data telephone terminal test equipment (AATE) 400...・・・・・・
Response circuit section (ANS 401...Relay wire ring,
402...Ready to receive Ondo Yamabe (1) T8)
, 403...Call path coupling section (8Pc) 404...
...Switching contact (CH), 405...PB
Signal receiving section (Pi3REC c406...Communication speed identification switching section (SDC c407...FM signal transmitting/receiving sectioncFMRs c408...Transmission/reception timing control section (TM), 409・・・・・・Control unit (CT
'L). π″１ Agent Patent Attorney Hiro Hara

Claims (1)

[Claims] In a data telephone terminal testing device that tests a data telephone terminal that transmits and receives data using a frequency modulation signal method via a general telephone line, a reception ready tone is transmitted for returning a reception ready tone in response to an incoming call from the data telephone terminal. and a PB receiving communication speed identification information constituted by a PB double signal combination from the data telephone terminal.
It is characterized by comprising a signal receiving means, and a communication speed switching means for switching the communication speed of the data telephone terminal testing device to a speed equal to the communication speed of the data telephone terminal identified by the output of the PB signal receiving means. Data telephone terminal testing equipment.