JPS63272256A - Inspection system for key telephone system - Google Patents

Abstract

PURPOSE:To contrive the simplification of an operation while omitting the operation to each telephone set by allowing a master equipment to inspect the presence or absence of connection when a predetermined operation is applied at a telephone set having a display function and displaying the number of the telephone set or the like connected normally sequentially. CONSTITUTION:When the installation of the key telephone system is finished, an inspector inputs a system data through a key input/display circuit KEY/DSP of a telephone set TEL 1 to operate the start of the inspection. A main control circuit MEP checks the presence or absence of connection through a control line B to each telephone set in the order of the telephone number at every operation at a specific telephone set and stores the number of a telephone set connected normally to a data memory MM and displays it to a number display section of the telephone set TEL 1. Thus, the telephone sets connected normally are displayed in the ascending order in the number display section of the telephone set TEL 1 in this way, then it is known immediately even if a telephone sets connected wrong exists.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a testing method for a button telephone device, and more particularly to a testing method for facilitating the testing of whether or not a telephone is properly connected when a new device is installed. .

(Prior Art) Generally, a key telephone device is constructed by connecting a plurality of telephones to a main device in a branch or star connection. FIG. 1 shows an example of the configuration of a button telephone device using a branch connection.

A plurality of telephone devices 1, 2,
3j... are connected via a communication line A and a control line B. That is, in the main device section, the main control circuit MEP is connected to the control line B of each telephone device via the data transmission circuit DTR, and in each telephone device, the main control circuit MEP is connected to the control line B of each telephone device via the data transmission circuit DTR.
P is connected to control line B via data transmission/power receiving circuit DTR/PR. PS is a power supply circuit, which feeds power to the rear of each telephone through the entire control line B. The gate is data memory. ANIV is a communication circuit, KEY, l/DS
P is the key power/display circuit.

(Problems to be Solved by the Invention) By the way, when this type of button telephone device is newly installed, it is necessary to check whether a plurality of telephone backends are properly connected to the main device section. This type of test is performed by calling one phone to another and checking for a response.

Therefore, this task must be repeated for all telephones.

On the other hand, in such an inspection method, if there is an error in the connection between the communication line and the control line, the single communication circuit ANW may be damaged. In other words, if the communication line A and the control line B are incorrectly connected as shown in the solid line in FIG. Hook switch H8 when raised
is closed, current flows into the communication circuit ANW from the telephone power supply VB of the power supply circuit ps. Since this current is larger than the current that flows when the power source vA for supplying communication current is connected, the single communication circuit ANW will be burnt out.

Therefore, 1. An object of the present invention is to test a button telephone device that can check whether the main device of the button telephone device and a plurality of telephones are properly connected without operating each telephone. The purpose is to provide a method.

(Means for Solving the Problems) The present invention provides a communication line in which a plurality of telephones, including at least one telephone having a display function, is connected to the main device.

In a button telephone device that is connected via a control line, and the main device and each telephone have a main control circuit by a microprocessor, when a predetermined operation is performed on a specific telephone among the telephones having the display function. , the main device executes a predetermined program in the main control circuit and sequentially sends and receives control data to and from each telephone through the control line, thereby inspecting and storing the presence or absence of connection; The present invention is characterized in that for telephones that have undergone a prescribed operation, the numbers, etc. of telephones with which normal connections have been made are displayed in order based on the test results of the main device.

(Embodiment) Below, a case where an embodiment of the present invention is applied to a branch-connected button telephone device as shown in FIG. 1 will be described.

In FIG. 1, the main control circuit MEP in the main device section
, the main control circuit KTP in each telephone rear end is composed of a microprocessor, and a control program for connection inspection is stored in advance.

Furthermore, each telephone is provided with a number display section using an LED or the like.

Figure 3 shows the main control circuit M when performing an inspection (hereinafter referred to as a system check) as a specified telephone.
A flowchart of control in EP is shown. After completing the installation work of the button telephone equipment, the inspection worker shall
Input system data through the 1st key manual/display circuit KEY/DSP and perform the operation to start inspection work. When the main control circuit MEP detects that an operation to start inspection work has been performed, the main control circuit MEP executes a program to connect to a specific telephone, determines the number of telephones to be checked and the number of the lowest telephone, and connects these to the control line. The number is displayed on the number display section of the specific telephone via the telephone number B as shown in FIG. 4(,). Next, the main control circuit MEP waits for the next operation on the specific phone, and when the operation to request the next phone inspection is performed on the specific phone, it checks whether or not there is a connection with the secondary phone, and when the connection is confirmed, this is stored in the data memory, and the second lowest telephone number is calculated and displayed on the specific telephone (fourth figure number)). From then on, each time a specific telephone is operated, the presence or absence of a connection is checked through the control line B to each telephone in the order of the telephone number, and for telephones that are successfully connected, the number is stored in the data memory, and the telephone number is stored in the telephone backend. Displayed on number display section 1. When the check is completed for all telephones, the display in the number display part of the telephone suffix 1 disappears. In this way, the number display section of the telephone suffix 1 displays only normally connected telephones in descending order of numbers, so that even if there is an incorrectly connected telephone, it can be known immediately.

FIG. 5 is a flowchart for explaining the data transmission processing operation for one telephone at the time of system check. The main control circuit MEP of the main device section performs checks with each telephone.

Signals are exchanged as shown in FIG. That is,
The main control circuit MEP sends a start bit 5TARTi to the telephone to be checked, and waits for the arrival of a signal ACK indicating reception from the sending telephone.

Start bit 5 TART 2 The phone that received the signal is AC.
Following K, predetermined KgY data, for example data such as a telephone number, is transmitted. When the main control circuit MEP receives the signal ACK and the following data, it determines that the telephone is normally connected and stores the number in the data memory MM. Next, the main control circuit MEP outputs the synchronization bit SYN.
and predetermined LED-TONE data (number data and call signal data) to the telephone set to be checked.

The main control circuit MEP performs two or more operations for all telephones.

In this way, the operator can know whether the wiring connections have been made correctly for all telephone devices by simply monitoring the telephone number displayed on the display section 1 after performing a predetermined operation on the telephone device 1. Can be done. Moreover, in the inspection method of the present invention, there is no need to pick up the handset of each telephone to answer the call, so even if the communication line and control line are incorrectly connected, there is no risk of burnout of the communication circuit.

In the embodiment, a branch-connection button telephone device has been described, but it goes without saying that the present invention can be similarly applied to a star-connection case.

(Effects of the Invention) As explained above, according to the present invention, the inspection of the wiring connections of a plurality of telephones can be performed as a series of operations by the control program set in the microprocessor of the main control circuit. Since operations on the telephone can be omitted, the work can be greatly simplified. Also.

Even if there is an incorrect wiring connection, damage to the eight devices can be prevented.

[Brief explanation of drawings]

Fig. 1 shows a configuration example of a button telephone device to which the present invention is applied, Fig. 2 is a wiring diagram showing an example of the connection between a main unit and a telephone to explain the conventional inspection method, and Fig. 3 A flowchart of a program executed by the main control circuit of the main device according to the present invention, FIG. 4 is a diagram showing an example of a display displayed on a specific telephone according to the present invention, and FIG. FIG. 6 is a diagram showing the time course of signals exchanged between the main device and the telephone in the inspection method of the present invention. In the figure, ME is the main device, MEP is the main control circuit, DT
R is a data transmission circuit, positions 1 to 3 are telephones, D
TR/PR is data transmission/power receiving circuit, KTP is main control circuit. A is the call line, B is the control line. Figure 1 MEP + main control circuit MM, data memory DTP: data transmission circuit PS: power supply circuit Dl: data transmission 1/power receiving circuit TP: main control/circuit ANW: J reference circuit εY/DsP
Key/indication tmiA :Talking line B ゛Control-IN line Fig. 2 vA: Power supply for telephone power supply B: Power supply for telephone power supply Fig. 3 Fig. 4 Display example Number of devices T, EL number (b) [Next data Display operation] 1t
-, J mouth 1 Fuko (C) [] 'One' ” ILIhi (d) [System check completed -uLJuLJL
JFigure 5

Claims (1)

[Claims] 1. A button telephone in which a plurality of telephones, including at least one telephone having a display function, are connected to the main device via communication lines and control lines, and the main device and each telephone each have a main control circuit by a microprocessor. In the device, when a predetermined operation is performed on a specific phone among the phones having the display function, the main device executes a predetermined program in the main control circuit to communicate with each phone. By sequentially sending and receiving data through the control line, the presence or absence of a connection is checked and stored, and the telephone on which the predetermined operation has been performed receives the number of the telephone with which a normal connection was made based on the test results of the main device. An inspection method for a button telephone device, characterized in that the following items are sequentially displayed.