JP2550633Y2 - Key telephone equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone apparatus for accommodating a two-wire terminal.

[0002]

2. Description of the Related Art Conventionally, a key telephone apparatus of this type has a two-wire terminal unit in a main unit, and a two-wire terminal is directly connected to the two-wire terminal unit. An external line call based on an outgoing / incoming call and an internal line call between a two-wire terminal and another key telephone are realized.

[0003]

In the conventional key telephone device described above, when a two-wire terminal is to be accommodated in the key telephone device after the device is installed, first, the cover of the main device is opened. Since a cord is connected to a two-wire unit in the main device, the cord is wired to a predetermined position, and a two-wire terminal is connected ahead of the cord.
There are drawbacks that the installation of the wire type terminal is troublesome and that a mistake in wiring is easily induced.

[0004]

In order to solve the above-mentioned problems, the present invention provides a main unit for performing switching connection control, a first ping-pong transmission unit for transmitting data to and from a key telephone, and a two-wire terminal. And a first modular jack to which a ping-pong transmission line connected to the first ping-pong transmission unit and a call line connected to the two-wire terminal unit are connected. A second ping-pong transmission unit for transmitting to the main unit, a second modular jack for connecting a two-wire terminal, and a ping-pong transmission line connected to the second ping-pong transmission unit And a third modular jack to which a communication line connected to the second modular jack is connected. The third modular jack is connected to the first modular jack and the third modular jack, respectively. It is obtained so as to connect the ping-pong transmission line each other, and calls for a line with each other.

[0005]

Means for Solving the Problems In order to solve such a problem, the present invention is the main device, a first heat transmission unit which transmits the key telephone set, for housing the two-wire terminal together comprises a two-wire terminal unit, and a first modular jack that <br/> connecting the connected call for a line to heat feed line and the two-wire terminal unit connected to the first heat transmission unit ,
The particular key telephone main unit and the second heat transmission unit which transmits, and a second modular jack for connecting the two-wire terminal, and heat transmission line connected to the second heat transmission unit second modular and a third modular jack for connecting the jack to the connected call for a line, a first modular jack and third modular jacks and the connected heat transmission lines to each other and a call for a line with each other respectively Connect ,
A two-wire terminal is accommodated via a specific key telephone .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention. In the figure, 1 is a main unit, 2 ₁ to 2 _n are external lines, 3
_{1 to} 3 _m is a ping-pong transmission line through which voice signals and control signals are transmitted by ping-pong, 4 is a communication line, 5 _{1 to} 5 _m
Is a key telephone, and 6 is a 2W telephone (2-wire telephone). Next, the main device 1 is connected to the external line interfaces 11 ₁ to 11 ₁ .
11 _n, division switch 12 when it is a speech path, the key telephone set 5 ₁ to 5 _m and a ping-pong transmission unit 13 for ping-pong transmission
_{1 to} 13 _m (first ping-pong transmission unit), 2W unit (two-wire terminal unit) 14 for accommodating a two-wire telephone or facsimile machine described later, CPU 15, ROM
16, a RAM 17, and a modular jack 18 (first modular jack). Further, 2W unit 14, detecting circuits 14 ₁ and 16H _Z oscillator 14 ₂
It is composed of Further, modular jack 50 to the particular key telephone 5 ₁ (third modular jack)
And a modular jack 51 (a second modular jack). I have.

[0007] When the 2W telephone 6 is off-hook operation for calling, which is transmitted to the CPU15 is detected by the detecting circuit 14 ₁ in 2W unit 14, as a result, the dial tone to 2W phone 6 by CPU15 Sent out. Subsequently, when the dialing operation is performed in 2W telephone, likewise, be transmitted is detected by the detection circuit 14 ₁ to CPU 15. The CPU 15 determines whether the call is an outgoing line or an outgoing line based on the detected dial number. In the case of an outgoing line, the CPU 15 issues a command to capture the outside line to the outside line interface 11 connected to the outside line 2 that can be captured. The communication is controlled by controlling the time-division switch 12 to close a predetermined communication channel, and the dial number input to the external line interface 2 is transmitted to transmit a dial signal to the captured external line. Make a call to. Then, when the other party answers, an outside line communication state is set. In the case of an extension call, a call is made to another key telephone 5 according to the input dial number, and an off-hook signal is received from the key telephone 5 on the called side, and a predetermined communication path of the time division switch 12 is set. Is closed to enter an extension call state. When an incoming call arrives from the outside line 2 and when another key telephone 5 calls an extension to the 2W telephone 6, one of the 2W units 14
6H _Z oscillator 14 ₂ from 16H _Z oscillation signal is sent to 2W phone 6, the result bevel in 2W phone 6 is ringing. When the off-hook for a response from the 2W phone 6 is detected in the detecting circuit 14 _1, the ringing of the bell is stopped, the call is given the speech path is closed in the time division switch 12 by CPU15 Be started.

FIG. 2 is a block diagram showing another embodiment of the present invention. In the embodiment of FIG. 1, whereas the 2W phone 6 to a specific key telephone 5 ₁ is housed, so as to enable facsimile communication accommodates a facsimile device 7 to a specific key telephone 5 ₁ in this embodiment It was done.

Next, FIG. 3 is a detailed block diagram of the specific key telephone. In the figure, 52 is a power supply circuit, 53
Is a ping-pong transmission unit (second
, A ping-pong transmission unit), a codec 54 for converting a digital signal to an analog signal and an analog signal to a digital signal, a CPU 55 for controlling the entire telephone, and a CPU 5,
Reference numeral 6 denotes a key unit including various operation keys, and reference numeral 57 denotes a display.

Next, the operation of the above embodiment will be described with reference to the flow charts of FIGS. 4, certain key telephone 5 ₁ (hereinafter, DX handset), is a flowchart for explaining the CPU15 of the operation of the main device 1 when performing external transfer. First, in step 100, the DX slave determines whether or not the transfer button in the key unit 56 of the slave is pressed during an outside line call. When this is determined to be "Y", at step 101, the control of 16H _Z oscillator 14 ₂ 2W
The bell of the telephone 6 (hereinafter referred to as a 2W slave) rings. Then performed through the detection circuit 14 ₁ to determine the loop detection by the off-hook 2W child device at step 102, if the loop is determined to be detected "Y", controls the time-division switch 12 at step 103 Then, the external line communication path of the DX slave unit is opened, and an external line transfer process for connecting the external line communication line to the 2W slave unit is performed.

FIG. 5 is a flowchart for explaining the operation of the CPU 15 when the 2W slave unit performs transfer.
At step 200, it is determined is detected by the detection circuit 14 ₁ hooking operations 2W slave unit during a call, if this is determined to be "Y", it performs call processing to the DX handset in step 201, followed by In step 202, an off-hook signal of the DX slave unit for responding to this call is detected and determined through ping-pong transmission.
If it is determined that the time division switch 12 is
The transfer is completed by opening the corresponding communication path of the W slave unit and connecting this communication path to the DX slave unit (step 20).
3).

Next, FIG. 6 is a flowchart for explaining the operation of the CPU 15 when the 2W slave unit makes a call.
First, in step 300, via a detecting circuit 14 ₁ 2
The loop detection by the off hook of the W slave unit is determined. When the off-hook 2W handset is determined to be detected "Y", the subsequently detected through the detection circuit 14 ₁ a dial signal by dialing 2W handset to capture the free external line of the corresponding In step 301, the dial number input to the outside line is transmitted. Then, the other party is called. As a result, the response of the other party is determined in step 302, and when the response of the other party is detected and determined to be “Y”, the call processing is performed in step 303.

FIG. 7 shows a C based on the operation of the DX slave unit.
6 is a flowchart illustrating an operation of a PU. That is, in step 400, it is determined by receiving the press of the DX slave unit via ping-pong transmission, and when this is determined to be "Y", the time division switch 12 is controlled to close a predetermined communication path. At the same time, in step 401, the corresponding outside line is captured. Subsequently, a dial transmission process for receiving an operation signal by a dial key operation of the DX slave unit via ping-pong transmission and transmitting a dial signal corresponding to the operation signal to an outside line for capturing is performed in step 402. If the destination is a facsimile machine (FAX), for example, a "p" sound indicating a response from the facsimile machine is detected and "Y" is determined in step 403, step 40 is performed.
4 to control the time-division switch 12 to connect the external line in use of the DX slave to the facsimile machine 7 accommodated in the DX slave, and in step 405 this facsimile machine 7
Facsimile communication is started between the facsimile machine and the other party.

[0014]

As described above, the present invention accommodates a two-wire terminal via a specific key telephone, so that the two-wire terminal is connected to the modular jack of the nearest specific key telephone. With this arrangement, the key telephone device can be accommodated only by itself, and the operation of accommodating the two-wire terminal can be simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a key telephone device of the present invention.

FIG. 2 is a block diagram showing another embodiment of the present invention.

FIG. 3 is a block diagram of a specific key telephone forming the key telephone apparatus.

FIG. 4 is a flowchart illustrating a transfer operation of a specific key telephone set.

FIG. 5 is a flowchart illustrating a transfer operation of a two-wire telephone housed in the key telephone apparatus.

FIG. 6 is a flowchart illustrating a calling operation of the two-wire telephone.

FIG. 7 is a flowchart illustrating a transfer operation of the specific key telephone set to the facsimile apparatus.

[Explanation of symbols]

1 main unit 2 ₁ to 2 _n external 3 ₁ to 3 _m ping-pong transmission line 4 call lines 5 ₁ to 5 _m EKT 6 2-wire telephone set 7 facsimile device 11 ₁ to 11 _n external line interface 12 time division switch _{131-134 m} ping-pong transmission unit 14 2W unit 14 ₁ detection circuit 14 ₂ 16H _Z oscillator 15 CPU 18 modular jack 50 modular jack 51 modular jack 53 ping-pong transmission unit 54 codec 55 CPU

Claims (1)

(57) [Scope of request for utility model registration] [Claim 1] accommodate the outside line and the button phone Then door
Moni, 2-wire terminal unit for receiving a 2-wire terminals
In key telephone system having a main unit having a prior SL main unit, a first heat <br/> transmission unit for transmitting said key telephone, feeding heat coupled to the first heat transmission unit contacting a call for line connected the the line two-wire terminal unit <br/> with and a first modular jack that continue, to the particular said key telephone, first performs transmission between the main unit 2 of the heat transmission portion, and a second modular jack for connecting the two-wire terminal, and a second heat transfer is connected to the feeding portion feed line and the second modular jack connected to the call for a line and a third modular jack to be connected, said first modular jack and a third modular jack and the connected heat transmission lines to each other and a call for a line with each other and respectively connected, via the specific key telephone Collect the two-wire terminal Key telephone system, characterized in that it was so that to capacity.