JPH06188940A - Intra-office line terminating equipment - Google Patents

Abstract

PURPOSE:To surely and quickly set a communication speed by comparing plural communication speed signals and speed information with each other and determining the communication speed of a terminal interface transmission part by communication speed information at the time of coincidence. CONSTITUTION:A data signal 101 from a data terminal equipment is received by a terminal interface and has the communication speed monitored by a monitor and control part 5 and is inputted to an office interface transmission part 2. This signal is converted by an office-side data signal 102 by the transmission part 2 and is sent to the other-party office, and an office-side data signal 103 from the other-party office is received by an office interface reception part 4. The reception output is inputted to a terminal interface part 3 through a control part 5 and is sent to the terminal equipment as a data signal 104 through a subscriber line. At this time, a detecting circuit 54 takes the output signal of the reception part 4 as the input and outputs a speed signal 108 and a control signal 109 and detects the signal 103. This signal 108 is compared with communication speed information, and the signal 109 is outputted at the time of coincidence to determine the communication speed in a speed setting circuit 56, thus surely and quickly determining the communication speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intra-station line terminating device used for a data transmission line, and particularly to a home line (DSU).
The present invention relates to a terminating device that automatically sets a communication speed between an internal line terminating device (OCU).

[0002]

2. Description of the Related Art A data transmission line is generally composed of the devices shown in FIG. In FIG. 2, data signals from the data terminal devices 11 and 18 that are installed as subscribers are the home line terminating device 12, the subscriber lines 19 and 21, and the intra-office line terminating devices 12 and 1.
7, the intra-station transmission devices 14 and 15 are transmitted to the partner station through the data lines constituted by the routes 20.

Intra-station transmission device 14, 1 via transmission line 20
The line between 5 is a transmission section in which a plurality of data chunks are overlapped, and the communication speed of each channel is fixed. on the other hand,
The communication speeds of the data 11 and 18 are unique to the device, and there are several types. Home line terminating device 7 and office line terminating device 1
It is necessary to switch the communication speeds 2 and 17 according to the communication speed of the data terminal device.

The switching of the communication speed is performed by the installer on the home line terminating device side switching the home network line terminating device side after checking the data terminal device, and notifying the installer on the local line terminating device side by terminating the intra-office line terminating device. The device side is also switching.

Conventionally, as described above, the communication speed setting in this type of intra-station line terminating device is performed at the speed specified by the installer by operating the communication speed setting switch by contacting the house. Change the communication speed by changing the clock frequency.

[0006]

As described above, in the related art, since the installer switches the communication speed to the specified communication speed by the communication from the inside of the house, the communication speed may be changed due to an error in communication or the like. Communication is not possible in this case. In addition, there is a problem that it takes time and effort to set such a device.

[0007]

An intra-station line terminating device of the present invention is a receiving interface receiving section for receiving a data signal from a terminal apparatus via a subscriber line, an output signal of the terminal interface receiving section and a first information. And a first control signal for selecting the first communication speed information according to a first control signal and a second control for selecting and outputting an output signal of the terminal interface receiving section. First switching circuit Output of first switching circuit A station interface transmitting unit that converts a signal into a station-side data signal and communicates via an intra-station transmission device, a station interface receiving unit that receives station-side data from the partner station via the station transmission device, and this station interface receiving unit A second switching circuit for inputting the output signal and the communication speed information of the station interface, outputting the output signal of the station interface receiving section at all times and outputting the second communication speed information according to a second signal, A speed for receiving the communication speed information from the terminal interface transmission unit and the remote control device, which sends the disconnection output signal of 2 to the terminal device through the subscriber line, and outputs the first communication speed information and the first communication speed information. An information receiving circuit,
A first detection circuit that receives the output signal of the station interface receiver and outputs the second communication speed information and the third control signal, and detects a third communication speed signal from the output signal of the interface receiver Then, the third communication speed is compared with the second communication speed information, and when they match each other, the second control signal is output and the second detection circuit and the second communication speed information or the first communication And a communication speed setting circuit for setting the communication speed of the interface transmission unit based on the speed information.

[0008]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a line terminating device in this embodiment.

In FIG. 1, a data signal 101 from a data terminal device is received by a terminal interface, and its reception output is input to a station ins transmitter 2 through a monitor controller 5 for monitoring and controlling the communication speed. Here, the signal is converted into the office side data signal 102, which is sent to the partner station via the device. On the other hand, the station side data signal 103 from the partner station is received by the station case receiving unit 4, and this received output is sent to the monitor control unit 5
Data signal 104 input to the terminal interface unit 3 through
Is sent to the terminal device via the subscriber line.

Next, the operation of the supervisory control unit 5 for automatically setting the communication speed on the terminal side will be explained. When the communication speed information 110 is sent to the speed information receiving circuit 5 from the remote control line connected to the storage side or the like. The speed signal 107 and the control signal 106 are output. The switching circuit 51 operates under the control 6 and outputs the speed signal 107 to the station interface transmission unit 2. The station YS transmitter 2 sends the speed signal 107 to the station side data signal 10
Converted to 2, transmitted on the station side, and sent to the partner station side. The speed information 107 is also input to the speed setting circuit 56, and specifies the communication speed of the end interface transmission unit 3 or the like, that is, the communication speed on the subscriber line side.

At the partner station, the receiving station side data signal 10
In the station interface receiver 3, the speed detection signal 108 and the control signal 109 are detected by the reception detection circuit 53. It operates by the switching circuit control signal 109, and outputs the speed signal 108 to the terminal interface transmission unit 3 as the station interface reception unit 4 outputs. The speed signal 108 is sent to the terminal side by the terminal interface unit 3, the terminal side confirms the communication speed by this speed signal, and the speed signal 108 is also input to the speed setting circuit 56, where the communication speed of the terminal interface 3 etc. That is, the communication speed on the subscriber line side is set to the specified speed.

When the first data signal 101 from the data terminal device is received by the terminal interface section 1, the detection circuit 52 detects speed information from the received output and compares the detected output with the partner speed signal 108 to make a match. Control signal 1
05 is output. It operates by the control signal 105 of the switching circuit 5 and sends the output signal of the terminal interface receiver 1 to the station transmitter 2. As a result, data communication from the terminal device is started.

[0013]

As described above, according to the present invention, the speed information given from the remote control line is automatically set to the partner station, and the communication speed on the subscriber line side is set automatically between the own station and the partner station. There is an effect that the communication speed can be set accurately and promptly.

[Brief description of drawings]

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

FIG. 2 is a block diagram showing a general configuration of a data transmission line.

[Explanation of symbols]

 1 Terminal Interface Receiver 2 Station Interface Transmitter 3 Terminal Interface Receiver 4 Station Interface Receiver 5 Monitoring and Control Unit 51,54 Switching Circuit 52,53 Detection Circuit 56 Speed Setting Circuit 55 Speed Information Reception Circuit

Claims (1)

[Claims] 1. A terminal Ys receiver for receiving a data signal from a terminal device via a subscriber line, an output signal of the terminal interface receiver, a first communication speed information, and a first control signal for the first control signal. First switching circuit for selecting the communication speed information of the above and selecting and outputting the output signal of the interface receiving section by the second control signal, and the intra-station transmission device for converting the output signal of the first path into the office side data signal A face transmitting section for transmitting to the other station via the station, and an interface receiving section for receiving the station side data signal from the other station via the station side transmission device,
A second switching circuit which inputs the output signal of the station interface receiving section and the second communication speed, and always outputs the output signal of the station interface receiving section and outputs the third control signal and the second communication speed information. And a terminal interface transmission unit for sending to the terminal device via the output input line of the second switching circuit, and receiving the communication speed information from an external remote,
Of the communication speed information and the first control signal of the speed information receiving circuit and the output signal of the station interface receiving unit, and outputs the second degree information and the third control signal. A third communication speed signal is detected from the output signal of the circuit and the terminal interface signal, the third communication speed signal and the communication speed information are compared with each other, and when they match each other, the second communication speed signal is detected.
And a communication speed setting circuit for setting the communication speed of the terminal Ethernet transmission unit according to the second communication speed information or the first communication speed information. Intra-station line terminating equipment for transmission.