JPS6259494A - Feeding monitor system for subscriber's line terminal equipment - Google Patents

Abstract

PURPOSE:To discriminate feeding condition when an incoming call is received in a terminal equipment, and improve a service to an outgoing aide by detecting the feeding condition of a power source to a line terminal equipment connected to an optical subscriber's line of an exchange through a feeding condition detecting means. CONSTITUTION:A line terminal equipment 3 is connected to an optical subscriber's line 5 of an exchange 9, and this device 3 is constituted with a line connecting part 13 having a power source part 11 and a feeding condition monitor part 15. The feeding condition or a feeding stop condition to the device 3 is monitored by this monitor part 15, and the condition is stored in a feeding condition memory device 17 of the exchange 9 through a subscriber's terminal station equipment 7, the line 5. Under its state, when, a calling is received by an user's telephone set 2 of a receiving side from an user's telephone set 1 of an outgoing side, a device 17 at a position corresponding to the telephone set 2 is made access by a signal control part 19 of the exchange 9 to read the feeding condition. Then, from the control part 19, the feeding condition is informed to the telephone set 1 of the transmitter side to improve the service to the transmitter side.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention monitors the state of power supply from a commercial power source to line terminal equipment such as in-house equipment and line termination equipment connected to an optical subscriber line of a switching device. Enables the power supply monitoring device of subscriber line terminal equipment.

[Technical Background of the Invention and Problems Therewith] Line terminal devices such as optical subscriber home equipment and line termination devices installed and connected to subscriber homes via optical subscriber lines in telephone exchange equipment are powered by commercial power. However, conventionally, the state of power supply from the commercial power supply to the line terminal equipment is not monitored by the switching equipment, and the power supply control from the commercial power supply to each line terminal equipment, that is, whether or not power is supplied, has not been monitored in the switching equipment. This control is performed by the subscriber's operation. Therefore, even if a subscriber stops the power supply from the commercial power supply to the line terminal equipment due to his own convenience, the switching equipment side has no knowledge of this power supply stoppage state, so the subscriber in this power supply stoppage state Even if there is an incoming call from another subscriber to the subscriber's line terminal, the switching equipment will control the connection to connect the incoming call to the subscriber's line terminal without knowing that the power supply has been stopped. However, since the power supply to the line terminal device has been stopped, it is not possible to form a call path to the line terminal device of the subscriber, and the switching equipment simply indicates that the power supply to the line terminal device by the subscriber has been stopped. ``Tadaimatsu Shin Dekimasen'', which treats the subscriber's line as abnormal and indicates an equipment failure to the calling party.
It was sending a message.

As a result, with conventional equipment, it is not possible for the calling side to distinguish whether the problem is due to a defect in the subscriber's equipment on the called side or due to an interruption in the commercial power supply, impairing serviceability and maintainability. was.

[Purpose of the invention] This invention was made in view of the above, and its purpose is to solve the problem that the inability to connect to a line terminal device of an optical subscriber system is due to the interruption of power supply to the line terminal device. An object of the present invention is to provide a power supply monitoring device for a subscriber line terminal device that can clearly identify to the calling side whether the problem is caused by a defect in the subscriber system equipment or by a defect in the subscriber system equipment, thereby improving serviceability and maintainability. .

[Summary of the Invention] In order to achieve the above-mentioned object, the present invention detects the power supply state of a power supply to a line terminal device connected to an optical subscriber line of a switching device, and detects the power supply state of a power supply to a line terminal device connected to an optical subscriber line of a switching device. When there is an incoming call, the power supply state to the line terminal device is identified based on the detection signal from the power supply state detection means, and when the result of this identification indicates that the power supply to the line terminal device is in a stopped state, one control means is activated to supply power. The gist is to send a message to the calling party to the effect that it is being stopped.

[Embodiments of the invention] Hereinafter, the present invention will be explained in detail using the drawings.

The figure is a block diagram of a power supply monitoring device for a subscriber line terminal device according to an embodiment of the present invention. In the figure, a domestic device 1 is connected to a switching device 9 via a line termination device 3, an optical subscriber line 5, and a subscriber line terminal device 7. For the sake of explanation in the figure, the receiving side is from the home equipment 1 connected to the left side of the switching equipment 9 to the subscriber line terminal equipment 7, and the receiving side is from the home equipment 1 connected to the right side of the switching equipment 9 to the subscriber line terminal. The station device 7 is assumed to be the calling side, and the operations described below are explained assuming that the calling side home device 1 makes a call to the receiving side home device 1.

The household equipment 1 and the line terminal device 3 correspond to the line terminal device of the present invention, and each of these devices is equipped with a power supply section 11 made of a commercial power source for operation. The line termination device 3 further includes a line termination section 13 and a power supply status monitoring section 15. This power supply letter B monitoring unit 15 monitors the power supply status from each power supply unit 11 to the household equipment 1 and line termination unit 13, receives the power supply start signal and power supply stop signal sent from each power supply unit 11, and receives the power supply start signal and power supply stop signal sent from each power supply unit 11. Power supply start and stop signals are supplied to the switching device 9 via the optical subscriber line 5 and the subscriber line terminal bag M7. The exchange device 9 includes a switch section 16 that connects each of the household devices 1, a power supply state storage device 1f17, and a signal control section 19. Power supply status storage device 1
7 is a power supply state to each household device 1 based on the power supply start and stop signals supplied from the power supply state monitoring unit 15;
In other words, power supply state information or power supply stop information is stored in correspondence with each home device 1, and the signal control unit 19 changes the power supply state when there is an incoming call from the home device 1 on the originating side to the home device 1 on the receiving side. The power supply status information or power supply stop information for the home device 1 is read from the storage location corresponding to the home device 1 in the storage device 17, and if the read information is the power supply stop information, it is sent to the home device 1 on the calling side. A message indicating that the power supply is being stopped is transmitted or read out via the switch unit 16, the subscriber line r station device 7, the optical subscriber line 5, and the line termination device 3. If the information is power supply status information, It performs control for transmitting normal subscriber line signal messages to the home equipment 1 on the originating side.

As described above, a power supply monitoring device for a subscriber line terminal device according to an embodiment of the present invention is configured.

Next, the effect will be explained.

Each power supply unit 11 for the home equipment 1 and line termination device 3
It is up to each subscriber to decide whether or not to supply power from each power supply unit 11 to the in-home equipment 1 and the line termination device 3, which is determined by the subscriber's operation. Alternatively, the power supply stop state is constantly monitored by the power supply state monitoring section 15, and the power supply state as a result of this monitoring, that is, power supply state information or power supply stop information is transmitted from the power supply state monitoring section 15 to the optical subscriber line 5 and the subscriber line terminal equipment 7. The power supply state storage device 17 of the exchange device 9 via
The power supply state storage device 17 always stores the latest power supply state for all the household devices 1 and line termination devices 3 in correspondence with each household device.

In such a state, if there is an incoming call from the calling home device 1 to the receiving home device 1, the signal control unit 19 of the switching device 9 will change the power supply state corresponding to the home device 1 that received the call. The storage location of the storage device 17 is accessed to read out information on the power supply state to the indoor device 1. As a result, if the power supply stop information is read, the power supply to the home device 1 that is about to receive the call is stopped, and since the home device 1 is stopped, the signal control unit 1 of the switching device 9
9 sends a message to the effect that the power supply to the home equipment 1 is being stopped to the home equipment 1 on the originating side via the switch unit 16, the subscriber line terminal equipment 7, the optical subscriber line 5, and the line termination equipment 3. , informs that the in-home device 1 that is about to receive a call is currently disconnected from power supply. As a result, it is possible on the calling side to clearly identify that there is no defect in the subscriber equipment on the called side, but that the called side is simply having its power supply cut off.

Further, if the information read out from the power supply state storage device 17 by the signal control unit 19 is power supply state information indicating that power is being supplied, a normal subscriber line signal message is sent to the in-home equipment 1 on the calling side. At the same time, the in-home equipment 1 on the calling side is connected to the optical subscriber port FA 5 and the switch section 1 of the switching device 9.
6 or the like to the in-home equipment 1 on the receiving side.

In addition, even though the signal control unit 19 accesses the power supply state storage device 17 and can identify that power is being normally supplied to the in-home device 1 on the called side, the in-home device 1 on the called side On the other hand, if a communication path for an incoming call cannot be established, it can be clearly identified that there is a problem with the subscriber equipment on the receiving side. Send out a message saying "I'm ready to go."

In the above embodiment, the power supply state monitoring section 15 has a built-in float type battery powered by the commercial power supply at the subscriber's home, so that it can operate at all times.

Further, a power supply state storage device 17 is provided in the line termination device 3, shares a battery with the power supply state monitoring unit 15, and is connected to the power supply state storage device 17 in the line termination device 3 from the switching device 9 each time a call is connected. However, for example, if the power supply from the commercial power source at the subscriber's home is cut off for a long period of time, the battery capacity may be insufficient, or the power supply status storage device 17 may be accessed from the switching device 9. It is preferable that the power supply state storage device 17 is provided in the switching device 9 because it requires startup time for the subscriber line terminal device 7 to perform the above operation, which may prolong the holding time of incomplete calls.

[Effects of the Invention] As explained above, according to the present invention, the power supply status to each line terminal device is monitored, and if there is an incoming call while the power supply is stopped, the calling party is notified that the power supply is stopped. Since a message to that effect is being sent, it is difficult for the calling party to determine whether the inability to connect to the 6-line subscriber is due to a power outage to the line terminal equipment or a defect in the subscriber equipment on the receiving side. Since the equipment can be clearly identified, serviceability for the calling party is improved, and in the event of equipment failure, it can be quickly detected and repaired, significantly improving the maintainability of replacement equipment. can.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a power supply monitoring device for a subscriber line terminal device according to an embodiment of the present invention.

Claims (2)

[Claims] (1) power supply state detection means for detecting the power supply state of the power supply to the line terminal device connected to the optical subscriber line of the switching device;
identification means for identifying the power supply state to the line terminal device based on a detection signal from the power supply state detection device when there is an incoming call to the line terminal device; 1. A power supply monitoring device for a subscriber line terminal device, comprising: control means for transmitting a message to the calling side when the power supply is in a power supply halt state to the effect that the power supply is being halted. (2) The power supply state detection means is provided in the line terminal device for each line terminal device, and the identification means is a power supply state storage means for storing the power supply state of each line terminal device detected by the power supply state detection means. and read identifying means for reading out the power supply state to the line terminal device from the power supply state storage means and identifying the power supply state to the line terminal device in the main body of the switching device when there is an incoming call to the line terminal device. A power feeding monitoring device for a subscriber line terminal device according to claim 1.