JPH04367131A - Line edition system - Google Patents

Abstract

PURPOSE:To perform the connection regardless of the difference the transmission rate by time-dividing multiplex signals to be obtained from first and second terminator modules and enabling different transmission paths to be housed integrally. CONSTITUTION:A primary group terminator module 1 is composed of a 1.5 Mbps/2Mbps signal conversion circuit 3, a 2Mbps transmission path terminator circuit 4, a 1.5Mbps transmission path terminator circuit 2, and a primary group multiplex circuit 5. A secondary terminator module 6 is composed of a 6.3Mbps transmission line terminator circuit 7, 6.3Mbps/8.4Mbps signal conversion circuit 8, a 8.4Mbps cable highway terminator circuit 9, and a secondary group multiplex circuit 10. A transmission path 12 is converted into a 2Mbps signal by the conversion circuit 3, and the transmission path 13 is terminated by the circuit 4. In this case, signals from the circuits 3 and 4 are multiplexed by the circuit 10 and connected to a time-division switch 11. Thus, a transmission line 12 can be housed in the same modules 1 and 6, and the connection can be performed regardless of the difference of the transmission rate.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line editing system for connecting digital transmission lines and various communication equipment within a station.

0002

2. Description of the Related Art An example of the configuration of a conventional line editing device is shown in FIG. As shown in Figure 2, 6.3 Mbps domestic transmission line 14,
Termination modules 16, 21, 23, 1 for each transmission rate of 1.5 Mbps international transmission line 12, 2 Mbps international transmission line 13, and 8.4 Mbps intra-office highway 15
8 must be used, and the connection between each transmission line and the intra-office highway is a line connection divided into 64 Kbps units.

Furthermore, the 8.2 Mbps common digital signal 20 has a frame format that can accommodate signals for a maximum of 120 channels by grouping every 6 lines as shown in FIG. When handling the signal of slot "16", 2M
The multiplexing number in the bps termination module 23 is set to "3", and 8
．． Special operations such as mapping the signal of time slot "16" of the 2 Mbps transmission line to an empty time slot position on the 2 Mbps common digital signal are required, and in order to connect to any 8.4 Mbps internal highway, one line ( 64 kbps) is required.

0004

[Problems to be Solved by the Invention] As mentioned above, in the conventional line editing system, 8
．． Because it was converted to a 2Mbps common digital signal, it was necessary to prepare different devices (modules) for each transmission rate, which complicated the connection configuration within the station.
There was a problem that operational work was not unified. Also, 1 line (
Since the line connection function is in units of 64 kbps), there were problems such as a lot of data editing work involved in setting up the line.

[0005] In view of this situation, the present invention has been developed to achieve 1.5
To provide a line editing method that can integrally accommodate transmission lines with different multiplexed sequences of Mbps and 2 Mbps, and allows connection work to be performed without being aware of the difference in transmission rate of the multiplexed sequence of each transmission line. It is in.

[0006]

[Means for Solving the Problems] In order to achieve this object, the line editing system of the present invention provides a line editing device that accommodates a digital synchronous transmission line and an in-office digital highway, and connects these lines arbitrarily. , 1.5Mbp
Transmission at each transmission rate is performed using a signal conversion means, a group multiplexing means, and a 2Mbps signal, which mutually converts transmission line signals having transmission rates of 2Mbps, 6.3Mbps, and 8Mbps and 2Mbps signals commonly used within the device. The present invention has a configuration characterized in that transmission paths of different multiplexed series can be handled in an integrated manner by means of the signal conversion means corresponding to each channel and the time division switch means for connecting the group multiplexing means.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a primary group termination module 1 includes 1.5 Mbps transmission line termination circuits 2, 1.
．． 5Mbps/2Mbps signal conversion circuit 3, 2Mbps
It is composed of a transmission line termination circuit 4 and a primary group multiplexing circuit 5. In addition, the secondary group termination module 6 has a 6.3 Mbp
s Transmission line termination circuit 7, 6.3Mbps/8.4Mbps
It is composed of a signal conversion circuit 8, an 8.4 Mbps intra-office highway termination circuit 9, and a secondary group multiplexing circuit 10. The time division switch 11 is a time division switch that connects in units of 2 Mbps primary groups, and accommodates a plurality of primary group termination modules 1 and secondary group termination modules 6.

[0008] The 1.5 Mbps transmission line 12 is 1.5 Mbps
s After being terminated by transmission line termination circuit 2, 1.5Mbp
The signal is converted into a 2Mbps signal by the s/2Mbps signal conversion circuit 3. The 2 Mbps transmission line 13 is terminated by a 2 Mbps transmission line termination circuit 4. Multiple 1.5Mbps/
The 2 Mbps signals from the 2 Mbps signal conversion circuit 3 and the 2 Mbps transmission line termination circuit 4 are multiplexed by the primary group multiplexing circuit 5 and then connected to the time division switch 11. Signals from the time division switch 11 are sent to the respective transmission paths by an operation opposite to this. Similarly, 6.3Mbp
The s transmission line 14 is terminated by a 6.3 Mbps transmission line termination circuit 7, and then converted into an 8.4 Mbps signal by a 6.3 Mbps/8.4 Mbps signal conversion circuit 8. 8.
The 4 Mbps intra-office highway 15 is terminated by an 8.4 Mbps intra-office highway termination circuit 9. Multiple 6.3M
bps/8.4Mbps signal conversion circuit 8 and 8.4M
bps 8.4Mbps from intra-office highway termination circuit 9
After the signals are multiplexed by a secondary group multiplexing circuit 10, they are connected to a time division switch 11. Signals from the time division switch 11 are sent to the respective transmission paths by an operation opposite to this.

In this configuration, a 1.5 Mbps transmission line, a 2 Mbps transmission line, a 6.3 Mbps transmission line, and 8.
4Mbps transmission lines (intra-office highways) can be accommodated in the same termination module, and all transmission lines and intra-office highways can be connected in units of 2Mbps primary groups without being aware of the differences in their respective transmission rates. be.

0010

[Effects of the Invention] As explained above, in the present invention, 1.
By converting 5Mbps signals to 2Mbps signals and connecting in 2Mbps primary group units, 1.5M
Transmission lines with different transmission rates of bps and 2 Mbps can be integrated into one device (module), and connection operations can be performed without being aware of the difference in transmission rate of the multiplexed series of each transmission line.

[Brief explanation of drawings]

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

FIG. 2 is a configuration example of a conventional technology.

FIG. 3 is an example of a frame format of an 8.2 Mbps common digital signal in the prior art.

[Explanation of symbols]

1 Primary group termination module 2 1.5Mbps transmission line termination circuit 3 1.5Mbps/2Mbps signal conversion circuit 4
2Mbps transmission line termination circuit 5 Primary group multiplexing circuit 6 Secondary group termination module 7 6.3Mbps transmission line termination circuit 8 6.3Mbps/8.4Mbps signal conversion circuit 9
8.4Mbps intra-office highway termination circuit 10,10
-1 to 2 Secondary group multiplexing circuit 11 Time division switch 12 1.5 Mbps transmission line 13 2 Mbps transmission line 14 6.3 Mbps transmission line 15 8.4 Mbps intra-office highway 16 6.3
Mbps termination module 17 6.3Mbps/8.
2Mbps signal conversion circuit 18 Internal highway termination module 19 8.4Mbps/8.2Mbps signal conversion circuit 20 8.2Mbps common digital signal 2
1 1.5Mbps termination module 22 1.5M
bps multiplexing circuit 23 2Mbps termination module 24 2Mbps multiplexing circuit

Claims (1)

[Claims] Claim 1: A line editing method for arbitrarily connecting a digital synchronous transmission line with a different transmission rate and an in-office digital highway.
A first termination module that performs a mutual signal conversion connection between a transmission signal with a transmission rate of 6.3 Mbps and a multiplexed signal with a transmission rate of 2 Mbps commonly used within the device, and a transmission signal with a transmission rate of 6.3 Mbps and 8.4 Mbps. and a second termination module that connects the multiplexed signals with the transmission rate of 2 Mbps for mutual signal conversion, and the transmission rate of 2 obtained from the first termination module and the second termination module.
A line editing system characterized by comprising a time division switch that connects Mbps multiplexed signals to each other in a time division manner.