JPH08223290A - Test system for analog subscriber line - Google Patents

Abstract

PURPOSE: To allow an unskillful maintenance personnel to conduct a line test. CONSTITUTION: When a test signal is sent from an exchange, a radio equipment 11 in a test equipment 3 receives the signal and a decoder 12 decodes the signal and a dial pulse signal transmitter 6 or a tone signal transmitter 7 is driven in response to the result of decoding, and the signal is sent to an analog subscriber line 4. Furthermore, a tone signal sent from the exchange 2 via the analog subscriber line 4 is received by a tone receiver 8 at the test equipment 3 and the same tone signal as the reception signal is sent from a tone transmitter 7 and the sent signal is sent to the exchange via a radio channel 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test method for an analog subscriber line, and more particularly to a subscriber test method from the inside of a specified subscriber's house.

[0002]

2. Description of the Related Art Conventionally, a subscriber line test is disclosed in, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent Publication No. 246659, a maintenance person goes to a subscriber's house, calls a test bench of an exchange station using a subscriber's home equipment, and a maintenance person on the subscriber terminal side and a maintenance person of the test bench. Was running by making a call to and from.

[0003]

However, such a conventional method has a problem that a skilled maintenance person needs to be attached to both the subscriber terminal side and the test stand.

The present invention has been made in view of the above circumstances, and is intended to allow maintenance to be carried out even by an unskilled maintenance person.

[0005]

In order to solve the above problems, the present invention is directed to a dial pulse test and tone transmission when a test control signal is transmitted and received through a wireless line connected to an exchange. An analog subscriber line test such as a test and a tone reception test is performed.

[0006]

When the test signal is transmitted from the exchange, the radio in the tester receives it, the decoder decodes the signal, and the dial pulse signal transmitter or the tone transmitter is driven according to the decoding result. Signal is sent to the analog subscriber line. The tone signal sent from the exchange through the analog subscriber line is received by the tone receiver on the tester side, and the detection result is sent to the exchange through the radio.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing an embodiment of the present invention, in which a subscriber's home device 1 is connected to an analog subscriber line 4 communicating with an exchange 2 via a tester 3. Also, the testing machine 3
The switchboard 2 and the switchboard 2 are each connected to a wireless antenna system 5. As shown in FIG. 2, the tester 3 includes a dial pulse transmission circuit (DPS) 6, a tone transmission circuit (TNS) 7,
It is composed of a tone receiving circuit (TNR) 8, a relay 9, a call monitoring circuit 10, a radio device 11, and a decoder 12.
As shown in FIG. 3, the exchange 2 contains a radio 12, a sequencer 13, and a tone receiver 14.

When the tester 3 is connected to the subscriber's house and a test start command is sent from the exchange 2 to the tester 3, it is sent as a radio wave from the radio antenna system via the radio 12, and the radio wave is transmitted. In the tester 3 which has received the message, the home device 1 is disconnected from the analog subscriber line and is connected to the call monitoring circuit 10 as shown in FIG. Then, in order to perform the test, when a maintenance person operates a test key (not shown) on the exchange 2 side, the signal is supplied to the sequencer 13, so that the sequencer 13 sequentially generates signals necessary for the test, and the radio 12 These signals are transmitted as radio waves from the wireless antenna system via the.

This radio wave is detected by the wireless antenna system 5 of the tester 3, received by the wireless device 11, decoded by the decoder 12, and supplied to the dial pulse transmitter 6 and the tone transmitter 7. As a result, the dial pulse transmitter 6
When a signal for controlling the tone transmitter 7 is received, a dial pulse is transmitted from the dial pulse transmitter 6 to the analog subscriber line 4, and when a signal for controlling the tone transmitter 7 is received, a tone signal is transmitted from the tone transmitter 7. Sent out.

On the other hand, when a tone incoming call to the subscriber side is tested, if a tone signal is sent from the exchange 2 side to the analog subscriber line, the tone signal is received by the tone receiver 8 of the tester 3 and received. The result is supplied to the wireless device 11.
At this time, the tone receiver 8 drives the tone transmitter 7 and transmits the same tone signal as received. Therefore, the same signal as the received signal is transmitted to the radio 11
The tone is received by the tone receiver 14 in the exchange which receives the tone signal and is returned to the exchange 2 via the so-called switch 2, and it is possible to know that the tester 3 normally receives the tone signal.

When the tone transmitter 7 is transmitting a signal, the tone receiver 8 is supplied with the blocking signal from the tone transmitter 7, and is configured not to receive the tone signal being transmitted. ing. At this time, the tone transmitter 7 is instructed to transmit the tone signal for a predetermined time, and when the instruction disappears after the predetermined time, the tone transmitter 7 stops transmitting the tone.

The call monitoring circuit 10 monitors the call from the home device 1 during the test, and when the call is detected,
The relay 9 is switched in the direction opposite to that shown in the figure, and the in-home device 1 is connected to the analog subscriber line 4 so that the in-home device 1 can make a call. In the above embodiments, the tone signal is received by the tone signal tester and then the tone transmitter is driven to send the tone signal back to the exchange side. However, when the tone reception level is sufficient and tone detection can be performed reliably, the tone signal is transmitted. The relay test may be omitted, that is, the received tone signal may be directly sent back to the exchange side via the wireless line. In addition to the above embodiment, when the tone receiver 8 receives a tone from the exchange 2, the tone oscillator (not shown) may be driven and the tone may be transmitted from the wireless device 11. In this case, one type of tone is returned for all types of tones, but the blocking process of the tone receiver 8 during tone transmission is unnecessary, and the configuration is simplified.

[0013]

As described above, according to the present invention, the tester is connected to the home device, the tester and the exchange are connected by the wireless line, and the analog connection is made by using both the wireless line and the analog subscriber line. Since the main line is tested, it is sufficient to perform a simple test operation, and the analog subscriber line can be tested even without a specially skilled maintenance person.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a testing machine.

FIG. 3 is a block diagram of a portion related to a test function of the exchange.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Home device, 2 ... Switch, 3 ... Tester, 4 ... Analog subscriber line, 5 ... Wireless antenna system, 6 ... Dial pulse transmitter (DPS), 7 ... Tone transmitter (TNS), 8 ... Tone reception Device (TNR), 9 ... Relay, 10 ... Call monitoring circuit, 11 ... Radio, 12 ... Decoder, 13 ... Sequencer, 14 ... Tone receiver.

Claims (2)

[Claims] 1. An analog subscriber line test method for testing an analog subscriber line connecting a switch and a home device, wherein a test device for testing between the test device and the switch is connected to the home device, The tester consists of a radio, a decoder, a tone transmitter, a tone receiver, and a dial pulse transmitter.When a signal instructing a test is sent by radio wave from the exchange, it is received and decoded, and the decoding result The dial pulse transmitter or tone transmitter is driven by to send the dial pulse or tone signal from the analog subscriber line to the exchange side, and when the tone signal is supplied from the exchange line via the analog subscriber line, it receives the tone. An analog subscriber line test method in which the receiver receives the result and the result is sent to the switch by radio waves. 2. The method according to claim 1, wherein the tester monitors the in-home device and, when a call is made from the in-home device, cancels the analog subscriber line test and connects the in-home device to the analog subscriber line. Characteristic analog subscriber line test method.