JPH0530070A - Signaling setting system for digital multiplexing device - Google Patents

Abstract

PURPOSE:To realize the signaling setting system for the digital multiple device capable of simplifying a line setting work by reducing the setting amount of signaling lines on the system setting the signaling line of the communication system composed of the digital multiplexing device and an analog transmission line. CONSTITUTION:The system is provided with a first monitoring means 51 monitoring a high efficient voice encoding signal of a digital multiplex device 100 and a second monitoring means 52 monitoring a signal converting the high- efficient voice encoding signal into a PCM signal. A line setting part 30 sets a signaling line only between a transmission path interface 10 and a transformer multiplex interface 40, and sets the line setting of the high efficient voice encoding signal among the transmission path interface 10, a code converter high efficient encoding signal interface 21, a code converter PCM signal interface 22, and a transformer multiplexer interface 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signaling line setting system for a communication system including a digital multiplexer and an analog transmission line.

FIG. 3 is a diagram for explaining the connection of a digital multiplexer to an analog line. Digital multiplexer 10
In a communication system configured by using 0, when connecting a line using a high-efficiency voice coded signal (hereinafter represented as ADPCM signal) to an FDM line, the ADPC
After the M signal is converted into the PCM signal by the code conversion device 200, it is converted into the FDM signal by the transmultiplexer 300 and connected to the FDM line.

In order to communicate with a designated party, the main signal and signaling lines are set up inside the digital multiplexer 100, but the ADPCM signal is temporarily converted to a PCM signal by the digital multiplexer 100. Since a signal is input / output to / from the external code conversion device 200, the line setting becomes complicated.

A line using the ADPCM signal is connected to the F
Even when connecting to a DM line, a setting method that allows easy line setting is required.

[0005]

2. Description of the Related Art FIG. 4 is a diagram for explaining conversion from an ADPCM signal to a PCM signal. In the figure, 1 indicates a digital signal input from the digital transmission line, and ~ indicate PCM.
Signals, Δ1 to Δ4 are ADPCM signals, and S is a signaling bit. 2A is a signal obtained by extracting the ADPCM signals Δ1 to Δ4 from the signal shown in 1, and outputs this from the digital multiplexer 100 to the code converter 200.

In the code conversion device 200, the ADPCM signal Δ
1 to Δ4 are converted into PCM signals 0 to 1 as shown in 2B and input to the digital multiplexer 100. In the digital multiplexer 100, as shown by 3, the code converter 2
PCM signal input from 00, PC input from transmission line
The M signal and the signaling S are exchanged in time slots according to the designated conditions, the line is set, and output to the transmultiplexer 300.

FIG. 5 is a diagram for explaining a conventional digital multiplexer, 100A is a digital multiplexer, 10 is a transmission line interface for interfacing with a transmission line, and 21A and 22 are separated by a transmission line interface 10. Code conversion device ADPCM signal interface for taking input / output interface to code conversion device 200 for converting ADPCM signal into PCM signal, code conversion device PCM
A signal interface, 30 is a line setting unit for changing time slots and setting a line, and 40 is a transmultiplexer interface for interfacing with a transmultiplexer 300 for converting a PCM signal into an FDM signal.

The digital multiplexer 100A shown in FIG. 5 is used to perform the line setting described with reference to FIG.

[0009]

In the above-mentioned conventional example, the following line setting is required when connecting the line using the ADPCM signal to the FDM line.

[Main signal] Transmission line-code conversion device Code conversion device-transmultiplexer [Signaling] Transmission line-code conversion device Code conversion device-transmultiplexer Therefore, the line setting work amount increases and erroneous setting increases. As the possibility increases, the amount of occupation of the line setting unit 30 for the setting of signaling becomes large, and the capability of the hardware deteriorates.

The present invention intends to realize a signaling setting system for a digital multiplexer which can simplify the line setting work by reducing the setting amount of signaling lines.

[0012]

FIG. 1 is a block diagram for explaining the principle of the present invention. In the figure, 100 is a digital multiplexer, 10 is a transmission line interface that interfaces with a digital transmission line and outputs a high-efficiency voice coded signal and a PCM signal, and 21 and 22 are from the transmission line interface 10. A code conversion device high-efficiency coded signal interface and a code conversion device PCM signal interface that interface with a code conversion device 200 that converts the output high-efficiency speech coded signal into a PCM signal, and 30 performs time slot replacement. The line setting unit 40 performs line setting, and 40 is a transmultiplexer interface that interfaces with a transmultiplexer 300 that converts a PCM signal into an FDM signal.

Reference numeral 51 is a first monitoring means for monitoring a high-efficiency voice coded signal, and 52 is a second monitoring means for monitoring a signal obtained by converting the high-efficiency voice coded signal into a PCM signal. The line setting unit 30 sets the signaling line.
Therefore, the high-efficiency voice coded signal is set only between the transmission line interface 10 and the transmultiplexer interface 40, and the transmission line interface 10, the high-efficiency coded signal interface 21 of the code conversion device, and the PCM signal interface 22 of the code conversion device are set. While performing between the transmultiplexer interfaces 40, the state of the main signal is monitored by the first and second monitoring means 51 and 52, and when a faulty channel is detected, the signaling is converted to generate a fault in the opposite station. introduce.

[0014]

The line setting of the signaling is performed only between the transmission line interface 10 and the transmultiplexer interface 40 by the line setting unit 30, and the high-efficiency voice coded signal is set by the transmission line interface 10 and the code converter high-efficiency coded signal. Since the processing is performed between the interface 21, the code conversion device PCM signal interface 22 and the transmultiplexer interface 40, the line setting amount of signaling is reduced and it becomes simple.

However, the routes through which the signaling and the main signal pass differ. For example, if the route followed by the main signal in this connection becomes an obstacle and the route followed by the signaling is normal, the call is made by the signaling, but the main signal is cut off, so that the call cannot be performed.

Therefore, when the state of the high-efficiency voice coded signal is monitored by the first monitoring means 51 and the state of the PCM signal after being converted is monitored by the second monitoring means 52, and the faulty channel is detected. The signaling is converted to and the failure occurrence is transmitted to the game.

[0017]

FIG. 2 is a diagram for explaining an embodiment of the present invention.
Reference numeral 100 in the figure denotes a digital multiplexer, and the transmission line interface 10, the code converter ADPCM signal interface 21A, the code converter PCM signal interface 22, the line setting unit 30, and the transmultiplexer interface 40 have been described in the conventional example of FIG. It has the same composition as that of No.

In the present embodiment, ADPCM is used as the high-efficiency speech coding system, and the first monitoring means 51 described in the principle diagram of FIG. 1 includes a monitoring circuit 51A for monitoring the ADPCM signal. , A control circuit 51B that monitors the output of the monitoring circuit 51A and the alarm information and identifies the faulty channel, and a signaling conversion circuit 51C that converts signaling according to the output of the control circuit 51B.
The second monitoring means 52 is an example including a monitoring circuit 52A that monitors the converted PCM signal, a control circuit 52B, and a signaling conversion circuit 52C.

In the transmission line interface 10, the PCM signal, the ADPCM signal, and the signaling input from the digital transmission line are separated and input to the line setting unit 30.
In the line setting unit 30, only the ADPCM signal is selected and transmitted to the code conversion device 200 to be converted into a PCM signal, and then the time slot input to the line setting unit 30 is exchanged with the designated partner. To communicate.

Since the signaling is set by the line setting unit 30 and output to the transmultiplexer 40,
The setting in the line setting unit 30 is once, which is simpler than the conventional example.

At this time, the ADPCM signal and the converted PCM signal are monitored by the monitoring circuits 51A and 52A in order to detect the disconnection of the main signal. Further, when the code conversion device 200 monitors the alarm signal resulting from the self-diagnosis, and when the control circuits 51B and 52B detect a failure of the main signal and an alarm signal, the failure conversion channel is specified and the signaling conversion circuit 51C is specified. , 52C to convert the signaling of that channel, and transmit information such as make busy to the game.

[0022]

According to the present invention, when a high-efficiency voice coded signal is sent to the FDM line, the line setting of signaling in the digital multiplexer is performed only between the transmission line interface and the transmultiplexer interface, so that It is possible to realize a signaling setting method for a digital multiplex device that can simplify the setting.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating the principle of the present invention.

FIG. 2 is a diagram illustrating an embodiment of the present invention.

FIG. 3 is a diagram illustrating connection of a digital multiplexer to an analog line.

FIG. 4 is a diagram for explaining conversion from an ADPCM signal to a PCM signal.

FIG. 5 is a diagram illustrating a conventional example.

[Explanation of symbols]

 100, 100A Digital multiplexer 200 Code converter 300 Transmultiplexer 10 Transmission line interface 21 Code converter High efficiency coding signal interface 21A Code converter ADPCM signal interface 22 Code converter PCM signal interface 30 Line setting unit 40 Transmultiplexer interface 51 First monitoring means 52 Second monitoring means 51A, 52A Monitoring circuit 51B, 52B Control circuit 51C, 52C Signaling conversion circuit

Claims (1)

Claims: What is claimed is: 1. A method of setting a signaling line of a communication system, which comprises a digital multiplexer (100) and an analog transmission line, wherein a high efficiency voice code is provided by interfacing with the digital transmission line. A transmission line interface (10) that outputs a coded signal and a PCM signal, and a code that is input to a code conversion device (200) that converts the high-efficiency speech coded signal output from the transmission line interface (10) into a PCM signal The conversion device high-efficiency coded signal interface (21) and the code conversion device PCM signal interface (22) for interfacing with the PCM signal output from the code conversion device (200) and the interchange of the time slots of the main signal and the signaling. The line setting unit (30) for performing line setting and converting the PCM signal into an FDM signal In a digital multiplexer (100) having a transmultiplexer interface (40) for interfacing with a transmultiplexer (300) to be exchanged, a first monitoring means (5) for monitoring a high-efficiency voice coded signal.
1) and a second monitoring means (52) for monitoring a signal obtained by converting a high-efficiency voice coded signal into a PCM signal, and a signaling line is set by the line setting unit (30) by the transmission line. Only between the interface (10) and the transmultiplexer interface (40),
The line setting of the high efficiency voice coded signal is performed by the transmission line interface (10), the code converter high efficiency coded signal interface (21), the code converter PCM signal interface (22) and the transmultiplexer interface (40). ), And when the first and second monitoring means (51, 52) monitor the state of the main signal and detect the faulty channel, the signaling is converted to convey the fault occurrence to the opposite station. A method for setting a signaling of a digital multiplexer, characterized by.