JPH04124998A - Key telephone system - Google Patents

Abstract

PURPOSE:To improve power saving effect and to improve convenience by releasing a power saving state with a power saving release means when an operation detector detects the push of a power saving release button in at least one key telephone system in the power saving state. CONSTITUTION:A power supply control part 1 operates the entire key telephone system normally while supplying the power supply to a key telephone main system 4 in the case of a normal operation state. In the case of the power saving state, the supply of the power supply is disconnected and the key telephone main system 4 is turned to be the power saving state. System side power saving switching devices S1 to Sn connect all the key telephone systems T1 to Tn to a power saving release operation detector 2 in the state of power saving. In this case, when a power saving release button 6 of the key telephone system T1 is pushed, for example, detection current flows from the polarities of a power saving release operation detection signal 11 through the power saving release button 6, and the detector 2 outputs a power saving release signal 10 to a power supply control part 1. Thus, the key telephone main system 4 is operated as the normal state until it is set to the power saving state next time.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a button telephone device.

[Conventional technology]

Conventional button telephone devices save power when the power is turned off for the purpose of saving electricity, but since the power is cut off for the entire button telephone device, the power supply to the housed button telephone is also stopped, making it difficult to operate the button telephone. However, the key telephone main device side was configured so that the operation could not be detected. In addition, there is also a configuration in which a specific telephone that is not connected to the key telephone main device is switched to while the entire key telephone device is powered off.

[Problem to be solved by the invention]

With the conventional button telephone device described above, when the button telephone is not operated most of the time and the display is not required, such as at night,
If the power to the entire key telephone device is turned off, power can be saved, but if there is a need for operation during that time, it is necessary to turn on the power to the key telephone main device again to operate the entire key telephone device.

Therefore, each time it is necessary to operate the button telephone device, the user operates the power switch etc. to operate the button telephone device.
Since it is impractical, the power must be turned on all the time, which has the disadvantage that it is not possible to save power.

Furthermore, when switching to a specific telephone, operations cannot be performed on any telephone other than the specific telephone, and furthermore, there is a drawback that the original operation of a button telephone cannot be performed.

[Means to solve the problem]

In the button telephone device of the present invention, a key telephone main device accommodates a plurality of office lines and a plurality of button telephones, and each of the housed button telephones is supplied with power from the button telephone main device side. a power supply control device that turns off the power of the key telephone main device and puts the key telephone main device into a power saving state upon reception of a control signal from the key telephone main device; an operation detector for detecting that a preset power saving release button has been pressed; The power saving canceling means controls the power supply control device to cancel the power saving state when the detector detects the power.

〔Example〕

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

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

In FIG. 1, the button telephone device of this embodiment includes button telephones T1 to T0, a key telephone main device 4 accommodating the key telephones T, to T□, and a button telephone main device under control from the key telephone main device 4. 4, and a power supply control section 1 that controls power supply to 4.

The button telephone main device 4 supplies power to and controls the button telephones T, ~T, . . .
, a main control section 7 that controls the key telephone main device 4 and the power supply control section 1 , and each button telephone T,
-device-side power saving switch 81-S, which opens and closes the connection of the signal line to Tn;

and a power saving cancellation operation detector 2 that detects the current from the internal power supply with a current detector 3 during power saving and sends a power saving cancellation signal to the power supply control unit 1. The button telephones T2 to Tfl have the same configuration as the button telephone T, including a button telephone circuit 5 that is controlled by receiving the power from the button telephone T, and a power saving cancel button 6 for sending a signal to cancel the power saving during power saving. There is.

Next, the operation of this embodiment will be explained.

The power control unit 1 can control whether the key telephone main unit 4 is in a power saving state or a normal operating state by a power saving setting signal 8 from a main control unit 7 in the key telephone main device 4. In the normal operating state, the power supply control unit 1 supplies power to the key telephone main device 4 to normally operate the entire key telephone device of this embodiment, and in the power saving state,
The power supply is cut off and the key telephone main device 4 is placed in a power saving state.

Further, the power saving state signal 9 output from the power supply control unit 1 indicates the power saving/normal state of the power supply control unit 1, and also switches the device-side power saving switchers 81 to S9 to the power saving side (contact a side) or the normal operation side. (contact side).

If the device side power saving switch S□~Sn is in normal operating state,
Button telephone control units P1 to Pwa are button telephones T, ~T
In the power saving state, all the key telephones T1 to T□ are connected to the power saving release operation detector 2.

The power saving canceling operation detector 2 has a function of outputting the power saving canceling signal 10 to the power supply control unit 1 to cancel the power saving when the current detector 3 detects the current of the power saving canceling operation detection signal 11.

In each of the button telephones T, ~T,, etc., in a normal operating state, power is supplied from the button telephone controllers P1 to P, respectively, and each diode D is
2, power is supplied to each button telephone circuit 5 to enable normal operation. However, if it is in a power saving state, the power saving switch 5I-8, . Since power is not supplied to the button telephone circuit 5 due to the polarity of the power supply since it is connected to the detector 2, the button telephones T, -T are in a power saving state.

Here, when the power saving release button 6 of at least one button telephone, for example, the key telephone T1 is pressed, a detection current flows through the power saving release button 6 via the diode D1 based on the polarity of the power saving release operation detection signal 11, and the power saving release operation is detected. The device 2 detects the power saving cancellation operation and outputs the power saving cancellation signal 10 to the power supply control unit 1 to cancel the power saving, and the button telephone main device 4 operates in a normal state until it is set to the power saving state next time. .

〔Effect of the invention〕

As explained above, the present invention provides a power control device that cuts off power to the key telephone main device and puts the key telephone main device into a power saving state upon receiving a control signal from the key telephone main device;
The button telephone main device is equipped with an operation detector that detects when a preset button for canceling power saving of each button telephone is pressed, and when at least one button telephone is in a power saving state by the power control device, the button for canceling power saving is activated. By having a power saving canceling means that controls the power supply control device to cancel the power saving state when the operation detector detects that the button has been pressed,
When you do not operate the button telephone most of the time and do not need the display, such as at night, you can put the entire button telephone device into a power saving state, and even when saving power, you can cancel the power saving by pressing the button to cancel the power saving and turn the button telephone off. There are effects that can be used.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1... Power supply control unit, 2... Power saving release operation detector, 3
...Current detector, 4...Button telephone main device, 5...
・Button telephone circuit, 6...Power saving release button, 7...
- Main control unit, 8... Power saving setting signal, 9... Power saving state signal, 10... Power saving canceling signal, 11... Power saving canceling operation detection signal %Tl~T,... Button telephone, P...
P, . . . Tan telephone control section, S, -S, . . . device side power saving switch, DI I D2 . . . diode.

Claims (1)

[Claims] A button telephone main device accommodates a plurality of office lines and a plurality of key telephones, and each of the housed button telephones receives power from the button telephone main device side. a power supply control device that turns off the power of the key telephone main device upon reception of a control signal of the key telephone main device and puts the key telephone main device into a power saving state; an operation detector that detects that a button has been pressed, and when the operation detector detects that the button has been pressed on at least one of the button telephones when the power control device enters the power saving state; A button telephone device comprising a power saving canceling means for controlling the power supply control device to cancel the power saving state.