JPH02234554A - Remote maintenance system - Google Patents

Abstract

PURPOSE:To attain the maintenance of plural subscriber equipments from a station equipment through the use of one line in a public network by providing the plural subscriber equipments each mounted with a control section in multi- point connection with a channel unit of each subscriber equipment and controlling its own maintenance section. CONSTITUTION:A station equipment 2 connection to a public network 1, a terminal equipment 3 utilizing one line of the public network 1, a subscriber equipment 4 connecting to the station equipment 2 and in existence at a remote distance and plural subscriber equipments 51-5(n) in multi-point connection with the subscriber equipment 4 are provided on the system. The subscriber equipments and 51-5(n) are respectively provided with maintenance sections 4d and 51a-51(n)a. The subscriber equipment 4a and the maintenance sections 4d and 51a-51(n)a are respectively connected with control sections 4e and 51b-51(n)b by a multi-point connection wire 7 and the control sections 4e and 51b-51(n)b apply the control corresponding to the operation of the terminal equipment 3 with respect to the maintenance sections 4d and 51a-51(n)a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to maintenance in a subscriber cotton conveyance system, and particularly to a remote maintenance system in which maintenance is performed by remote control.

[Prior Art] Generally, a subscriber line transport system is a transport system for relieving long-distance subscribers. Specifically, central terminal (CT) installed in a telephone office
al) and subscriber equipment (RT:R) installed at a remote location.
It has a transport structure in which the terminal (emote terminal) is connected via a line.

Conventionally, maintenance of subscriber equipment in the subscriber line transport system has been performed by providing a maintenance section 31a in the subscriber equipment 31 and operating the maintenance section 31a on the terminal 32, as shown in FIG. 2(a). . That is,
Maintenance was performed individually on each subscriber device, regardless of the station device 33.

[Problems to be Solved by the Invention] The conventional maintenance method for the subscriber device 31 is as follows:
Since maintenance was performed individually on each subscriber unit 1i31, there were the following drawbacks.

(a) If the manufacturers of the station device 33 and the subscriber device 31 are different, maintenance cannot be performed by remote control from the station device 33. Therefore, maintenance had to be performed at a remote location where the subscriber equipment 3l is located.

(Example) When performing maintenance of the subscriber device 31 by remote control from the station device 33, as shown in FIG. 2(b), the station device 3 to which the maintenance terminal 32 is connected is
Therefore, it was necessary to provide a control line that connects the maintenance section 33a of No. 3 and the maintenance section 31a of the subscriber device 31.

SUMMARY OF THE INVENTION An object of the present invention is to provide a remote maintenance method that can maintain a plurality of subscriber devices from a station using one line of a public network, in order to solve the problems of the prior art.

[Means for Solving the Problems] The present invention is a remote maintenance system in a subscriber line carrier system, which includes a maintenance terminal, a station device connected to this terminal via a public network, and a station device connected to the terminal via a public network. A channel unit connected to the channel unit and having an automatic incoming call function and a modem function for calls from a terminal; a subscriber device connected to the channel unit and equipped with a control unit for controlling a maintenance unit; and a channel unit of the subscriber device. It is characterized by comprising a plurality of subscriber devices each equipped with a control section that is multi-point connected to the unit and controls its own maintenance section.

〔Example〕

Embodiments of the invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a remote maintenance method according to an embodiment of the present invention.

In this embodiment, a station device 2 connected to a public network 1, a terminal 3 using one line of the public network 11, a subscriber device 4 connected to the station device 2 and existing at a long distance, and this subscriber A plurality of subscriber devices 5 (multi-point connected to the device 4)
1) to 5(n). As a result, the subscriber device 4 and the subscriber device 5(1) can be connected to each other by remote control from the terminal 3.
~5(n) can now be maintained.

Terminal 3 is for maintenance. Terminal 3 is
Keyboard 3a and display 3 for monitoring responses
b, etc.

The subscriber device 4 is connected to the station device 2 via its channel unit 4a and the channel unit 2a of the station device 2. Channel Unisoto 4a has an incoming circuit 4b
and a modem 4c. The incoming call circuit 4b automatically performs an incoming call operation in response to a call from the terminal 3, and
It has the ability to use one line of the public network l for business purposes. The modem 4c is a modem compatible with the PCM signal line 6 that connects the channel unit 2a of the station device 2 and the channel unit 4a of the subscriber device 4.

The subscriber device 4 and the subscriber devices 5(1) to 5(n) each have a maintenance section 4d. 5(1)a ~5
(n) Equipped with a. These maintenance parts 4d
and 5(1)a to 5(n)a are respectively control parts 4e, 5(
1)b to 5(n)b. The subscriber device 4a and the control unit 4e5 (11b~5(n)b are connected by a multi-point connection line 7, and the control unit 4e,
5(1)b to 5(n)b are maintenance parts 4d, 5
(1)a to 5(n)a are controlled in accordance with the operation of the terminal 3.

Next, maintenance operations for this embodiment will be explained. However, for ease of understanding, a case will be described in which maintenance of the subscriber device 5(1) is performed from the terminal 3.

First, a call is made from the terminal 3 to the subscriber device 5(1).

The call signal from the terminal 3 is transmitted to the subscriber equipment 4 via the public network 1, the channel unit 2a of the station equipment 2, and the PCM signal line 6.
channel unit I-4a.

When a call signal is manually input to the channel unit 4a, the incoming call circuit 4b automatically performs an incoming call operation, and uses one line of the public network 1 to maintain the terminal 3 and the subscriber equipment 5(1) in the maintenance section 5(1)a. and are connected via the channel unit 4a.

When this connection is completed, the subscriber device 4 sends a reply to the terminal 3 indicating that the connection is complete.

After this reply, the operator of the terminal 3 transmits data indicating the details of the maintenance using the keyboard 3a.

This data includes public network 1, station equipment 2, PCM signal line b,
The control unit 5(1)a of the subscriber unit 5(1) is manually operated via the subscriber unit 4 and the multi-point connection line 7.

Based on the received data, the control unit 5 (1) a of the subscriber device 5 (1) controls the maintenance unit 5 (1) a to perform maintenance indicated by the data.

In this way, maintenance of the subscriber device 5(1) can be performed by remote control from the terminal 3.

〔Effect of the invention〕

As explained above, the remote maintenance method of the present invention includes a maintenance terminal, a station device connected to this terminal via a public network, and a station device connected to the station device,
A channel unit having an automatic incoming call function and a modem function for calls from a terminal, a subscriber device connected to this channel unit and equipped with a control unit that controls a maintenance unit, and a multipoint connection with the channel unit of this subscriber device. Since the subscriber device is provided with a plurality of subscriber devices each equipped with a control section that controls its own maintenance section, the following effects can be obtained.

(b) Data communication using public networks allows maintenance of subscriber equipment to be remotely controlled, independent of the station equipment.

(H) Maintenance of multiple subscriber devices can be performed by using only one line of the public network.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a remote maintenance method according to an embodiment of the present invention, and FIGS. 2(a) and (b) are block diagrams showing a conventional maintenance method. 1...Public network 2...Station equipment 3...Terminals 5.5(1) to 5(n)...Subscriber equipment 4a...
Channel unit 4b...Incoming circuit 4c...Modem 4d, 5(1)a to 5(n)a-...Maintenance section 4e 5(1)b to 5(n)b...Control Part 7...
・Multi-point connection line

Claims (1)

[Claims] (1) A remote maintenance method in the subscriber line carrier system, which consists of a maintenance terminal, a station device connected to this terminal via a public network, and an automatic maintenance system connected to this station device for calls from the terminal. A channel unit having an incoming call function and a modem function, a subscriber device connected to this channel unit and equipped with a control unit that controls a maintenance unit, and a subscriber unit that is connected to the channel unit of this subscriber unit at a multipoint and operates its own maintenance unit. A remote maintenance method characterized by comprising a plurality of subscriber devices each equipped with a control unit to control.