JPS61278251A - Connection test equipment - Google Patents

Abstract

PURPOSE:To conduct test while confirming surely a connected party by providing a data communication equipment respectively to the outgoing side and the incoming side so as to apply exchange of predetermined information. CONSTITUTION:An exchange applies exchange connection according to a dial signal and sends a call signal to the connected opposite party. When an RSD 21 sends a detection signal of a call signal to a CONT 25, the CONT 25 operates an AS 221 to form a loop via an HYB 23 between incoming side subscriber terminals to send a reply. The CONT 17 starts a DTE 16 to command the transmission of the own telephone number information. On the other hand, the CONT 25 of the incoming side device starts the DTE 24 after the operation of the As 221 and after an outgoing telephone number sent from the outgoing device is received, the own telephone number information is sent. The CONT 17 collates a connection party number supplied to the DLS 12 with the opposite telephone number obtained from the DTE 16 so as to confirm that the connection is conducted surely.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a connection testing device, and particularly to a connection testing device used for automating a connection test from one terminal of a communication line network of a telephone exchange.

(Prior Art) Conventionally, during the installation or operation of a telephone exchange, testing was carried out to see whether the exchange could perform normal connection operations or how it would behave when a large number of calls were added. Used are a pseudo call generating device, a combination of a pseudo call generating device and a pseudo call answering device, and a centralized testing device provided with a test call generating device and a response trunk. In addition, these test devices are configured so that multiple devices can be installed depending on the scale of the test, and can be operated continuously by changing the connection partner under computer control, or can be built into a switchboard for testing.
Even things like this have been made fun of.

These connection test devices have a wealth of functions, such as those that make calls from subscriber terminals, such as detecting callers, sending selection signals, receiving response signals (detecting disconnection of ringer), and Those that respond to a disconnection function at the subscriber terminal have the functions of receiving a call (detecting a ringing signal), answering (loop closing), and terminating a call (loop opening), and those that add a call to a human trunk line equipment. In this case, the functions of starting partial transmission, receiving a starting completion signal, sending a selection signal, receiving a response signal, and disconnecting are further connected to a mountain interrupt line device and used as a partner station device. It has the functions of sending out (receiving, starting light) signals, receiving selection signals, sending out a ring tone, sending out response signals, and terminating calls, and tests the connection between the calling side and the called side.

In addition, in order to make the activation and selection signals correspond to the signal system of the target exchange, the connection test equipment supports dial path transceivers, PB signal transceivers, MF transceivers, and more recently P(
Many of them are equipped with a 14-signal transmitter/receiver and used for switching purposes.

(Problem to be Solved by the Invention) However, in the above connection testing device, the connection is determined to have been successful when a response signal is received from the device on the calling side and a response signal is received from the device on the receiving side. . At this time, if the actual line is not accommodated and the test is performed using one test device each for the calling side and the receiving side, it will be determined that there is a connection failure if no response signal is obtained, but at least the N times side If multiple test devices are connected to the network or an actual line is accommodated, the disadvantage is that even if a response signal is obtained, it does not guarantee that a connection will be made without error. ing. Furthermore, in a connection test involving a large number of stations, the called party cannot immediately determine the originating station, making it difficult to obtain sufficient data.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks, and to provide a connection testing device that allows confirmation of the calling and called parties and is error-free.

(Means for Solving the Problems) The present invention provides data communication devices on the receiving side and the receiving side of a connection test device, respectively, and the receiving side, after sending a response signal,
After detecting the response signal, the transmitting side exchanges predetermined information using these data communication devices, and confirms the connection based on the validity of the information. In addition, this data communication device allows all information related to the connection test to be sent and received in advance to facilitate the preparation of materials.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the transmitting side device of the present invention;
FIG. 2 is a block diagram of an embodiment of the receiving side device of the present invention, showing a case where both incoming and outgoing calls are from two-wire subscriber terminals of an exchange.

The calling device in FIG. 1 is a calling switch (hereinafter referred to as H8) 11.
A relay circuit (hereinafter referred to as 0GR) 11 having a selection signal sending switch C (hereinafter referred to as DS) 112, a selection signal sending circuit (hereinafter referred to as DLS) 12, a 2-wire and 4-wire conversion circuit (hereinafter referred to as HYB) 13, and a Sound detection circuit (hereinafter referred to as DTD) 14
, ring detection circuit c below R, BTD) 15, HYB
13 Modulation/demodulation equipment connected to the 4-wire side [hereinafter referred to as MOD
EM) 161 and a communication control circuit (hereinafter referred to as DTC) 162 connected to the MODEM 161.
It is configured to include a control circuit c (hereinafter referred to as DTE) 16 and a control circuit (hereinafter referred to as C(JNT)) 17 that performs order control of each of the functional circuits described above.

The destination device in Figure 2 is a ringing signal detection circuit (hereinafter referred to as R, 5).
D) 21, a relay circuit c (hereinafter referred to as ICR) having a response switch (hereinafter referred to as As) 211, 22, ■(■23), M(
l1yTE2 with JDEM241 and DTC242
4, and C〇-N that controls the contribution order of each of the above functional circuits.
'l'25.

Figure 3 shows the originating device in Figure 1 and the receiving device in Figure 2.
This is an operation sequence diagram when the terminal is connected to a subscriber terminal of an exchange and a connection test is performed.The operation will be explained below with reference to this operation sequence diagram. First, C0NT17
operates H8111e, creates a loop between subscriber terminals via HYB13'e, and transmits the call to the exchange (code ■
). Next, the dial tone ff1HYB1 sent from the exchange
The DTD 14 detects it via 3'e (symbol ■). This D
When the detection signal dZC from TD14 (sent to JNT17), C0NT17 operates DS112 to connect DLS12 to the subscriber terminal, gives DLS12 the number of the connected party, and sends a dial signal (symbol ■).
. The exchange makes an exchange connection according to this dial signal,
Sends a call signal to the connected terminal. In this case, the receiving side device is connected to the connection partner terminal, and the R8D21 receives this calling signal (symbol ■). On the other hand, the RBTD receives a ringing tone sent from the exchange to the caller at the same time as the ringing signal (symbol ■). Then R8D21 is C(JNT
When the detection signal of the calling signal is transmitted to C(JNT2
5, AS221 is fully activated and HY is connected between the subscriber terminals on the receiving side.
Create a loop via B23 and transmit the response (symbol ■)
. This response causes the exchange to stop ringing, so RB
TDl,5 detects the response and sends the detection signal to C0NT17 (symbol ■). Therefore, C0NT17 is DTE16
Activate it and instruct it to send your phone number information (code ■). On the other hand, the called device C0NT25 activates the D'l'E24 after the operation of the AS221, and after receiving the calling telephone number sent from the calling side device, causes it to transmit its own telephone number information (symbol ■). Then, after the transmission is completed, As
221 is restored, and C0NT25 itself also returns to its initial state (code [phase]). Further, the originating side DTE 16 receives the telephone number information of the other party and transmits the telephone number to the C0NT 17 V, and then the C0NT 17 returns all of the originating side devices to the initial state (symbol ■). In addition, DL in CON'l'16
The connection destination number given to S12 is checked against the destination telephone number obtained from the DTE 16 to confirm that the connection is correct.

FIG. 4 is a block diagram of another embodiment of the present invention, which can be connected to either the originating subscriber terminal or the terminating subscriber terminal of the exchange. In the figure, DLS12. DT
D14. RBTDl5. DTE16 and R8D21 have the same names and the same functions as those in FIGS. 1 and 2, respectively, and this embodiment also includes a call response switch (hereinafter referred to as RAS) 411, and Four switches for switching each functional circuit (hereinafter 81, 82, 8
3, 84) and a control circuit (hereinafter referred to as C0NT) that sequentially controls each of the above functional circuits.
It consists of 46.

First, to proceed with the explanation of the operation in the case where all the calling side devices of this embodiment are used, the CONT 46 operates the HAS 411 to create a loop between the subscriber terminals via the DTD 14' and transmit the call to the exchange. Next, the dial tone 1DTD14 sent from the exchange is detected and transmitted to C0NT46. C0NT
16 operates the SL and connects with the subscriber terminal to the DTD16.
to DLS 12, and causes DLS 12 to send out a selection signal. Next, C〇-NT16 operates S2 to connect the subscriber terminal from DL-812 to R]:1T(J
15, R, BTD receives the ringing tone and detects that the ringing tone stops again. When C0NT46 receives this detection signal, it operates 83t, switches the connection with the subscriber terminal from BTD15 to the receiving side of DTE16, and connects DTE16 to the receiving side of DTE16.
The TC obtains the telephone number information of the called party from the called party's device connected to the called party's terminal. This information is C0NT
46, the C0NT46 checks the connection partner number given to the DLS12 to confirm that the connection is correct.

Next, when this embodiment is used as the receiving side device, R8-D2
1 detects the calling signal sent from the exchange and transmits the detection signal to C (JNT46. C0NT46 is HAS
411. Operate all switches St to S4, and M(
Creating a loop between the subscriber ends via the transmitting side of JDEM 161 provides a response signal to the switch. Next, C (JNT46 transmits the telephone number information given to the subscriber terminal on the called side through all DTC162.Next, C0NT46 restores HAS411,
He will also recover.

As described above, in the embodiments shown in FIGS. 1, 2, and 3, it is assumed that each data communication device handles only the transmission and reception of telephone number information, but if the information falls within the range predetermined by the control circuit, It is clear that richer connection information can be obtained by sending and receiving other information.

Furthermore, in the above embodiment, both the calling and receiving side test devices were connected to subscriber terminals, but as in the past, activation signals, selection signals, etc. It is clear that by connecting a data communication device to a test device equipped with a detection circuit, information can be transmitted and received in the same manner as in the above embodiment.

Furthermore, in the above embodiment, the data communication device is equipped with all the modulation and demodulation devices that transmit data within the voice signal band, but in the case of a device that only transmits and receives a small amount of information such as a telephone number, for example, a push button signal can be transmitted and received. A multi-frequency signal transmitter/receiver such as a receiver may also be used.

〔Effect of the invention〕

As explained in detail above, the present invention enables the test to be performed while reliably confirming the connection partner when performing a connection test of a switch, when performing a large number of test connections all in parallel, or when performing a connection test during operation. There is no misidentification, and various test information can be sent and received between test devices.

[Brief explanation of drawings]

1 and 2 are block diagrams of an embodiment of the canceling device and the receiving device of the present invention, respectively, and FIG. 3 shows the operation of the devices shown in FIGS. 1 and 2 when connected to an exchange and tested. FIG. 4 is a block diagram showing another embodiment of the present invention. 11.22.41... Relay circuit (OGR, I
C.R.几L), 12... Selection signal sending circuit CDL8)
, 13°23... 2-wire 4-wire conversion circuit (HYB),
14. Mountain... dial tone detection circuit (DTD), 15...
・Ring tone detection circuit (RBTD), 16, 24...
...Data communication equipment %161゜24] ...Modulator/demodulator [(MODEM), 162, 242...
Communication control circuit (DTC) Sl 7 , 25 , 46...
-...Control circuit (C (JNT), 21...Call number 100 detection circuit (RED).Kaya 2 ■Kaya 3 Concave 4 Fig.

Claims (2)

[Claims] (1) In a connection test device that generates a pseudo call from one terminal of a telephone exchange and returns a response signal from the terminating terminal, a data communication means that is connected to the telephone line of the terminating party after the terminating party sends a response signal. and a data communication means that is connected to a calling line of a calling party after the calling party receives a response signal. (2) A data sending means that sends identification data that identifies the terminal of the telephone exchange to which the data communication means connected to the called side is connected, and which is used to identify the identification data received by the data communication means connected to the calling side. The connection test device according to claim 1, characterized in that the device is data receiving means for checking whether the content matches the transmitted connection signal.