JPS6223653A - Time division channel control system - Google Patents

Abstract

PURPOSE:To facilitate the control processing procedure and high speed processing according to a service function of an exchange by using a time division channel control function by a reception side accommodation module and a channel control function by a transmission side accommodation module in common. CONSTITUTION:An input time division channel 20 from a time division multiplex circuit section 120 is connected to T 10-12 of each module in modules Mi 200, Mj 201 and Mk 202. Thus, an output signal is sent to a terminal device 140 accommodated in the module Mi 200 by the control of a MPi 100 of the module Mi 200 from an output trunk 131 of a tone generator or the like mounted on the module Mk 202. Further, the MPi 100 of the module Mi 200 accommodating the terminal device 140 executes the connection changeover so that the signal reception from an output trunk 131 to the terminal device 140 is brought into the signal reception from the terminal device 141 to the terminal device 140 accommodated in the other module (Mk 202) similarly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a time-division channel control system, and particularly to a time-division channel control method in a distributed control type small to medium capacity digital exchange having one stage of time switches in each module. Regarding control method.

[Conventional technology]

Conventionally, the time-division call path control system of this type of small-medium capacity time-division switching equipment has been constructed as shown in FIGS. 3 to 7.

3 to 7 respectively show the first example of the conventional time-division channel control system. - It is a professional drawing showing a fifth example. In FIG. 3, the basic module 110 is equipped with a one-stage time switch (hereinafter referred to as T) and centrally controlled by a system processor (hereinafter referred to as SP>103).
A time division multiplexing circuit section 120 and a separation circuit section 1 are provided in the manual time division communication path 20 and the output time division communication path 30 of O, respectively.
21 is connected. Figure 4 shows the basic module 110.
Expansion module 1 for accommodating lines without a time switch
11 is added.

In addition, in recent years, due to the development of devices such as microprocessors and the increase in system service functions,
Due to the large load of P103, as shown in Fig. 5, each modipool (FM, , M, , M
:2c Komoji-7-Rufurose Nosa (hereinafter referred to as MP1.
MPi, MPk>100. 1f) A system that adopts a load distribution 6 function distribution configuration equipped with 1.102 has appeared.

To each person + 200. In the control information transfer between MJ 201 and Mk 202, M P + -1-O(')
).

It is assumed that MP, +101, and MPm 102 are connected by a bus 300, and also interface with the S I-' 103 of the -L system processor, if necessary.

Here τ, M+ 200. 'r1 for MJ201 as well
0 for each MPi 100,
Third and fourth conventional examples having the same configuration as the MPJ 101 are shown in FIGS. 6 and 7. No. ()[A is a duplex connection of the input time division communication path 2(') of the fraud module! ,,The output time division communication path 30 is the output communication connection 1 of the local module 7, -.
−rn consisting of only N :< N with T10/:
: Indicates the communication path control method. Further, FIG. 7 shows a configuration in which the input time division communication path 20 of the own module and the output time division communication path 30 are connected in multiple ways, with the output capacity of NXmN's 'r10 having the output capacity of the power output communication path 30 to each module. The communication route control method to be adopted is shown below.

I-Problem 1 to be Solved by the Invention In the fourth example of the conventional communication path control system described above, the output time-division communication path 30 of each module is the same as the own module J.

Since it is a system that is accommodated in a module and connected only to terminals and trunk circuits, it is possible to send one transmit data signal to receiver circuits accommodated in multiple modules or L-rules. p;, each MP + 100.1VIP, + 101
T: It is necessary to configure the switch for one hour and connect or switch the bus. Next, in the fifth example of the conventional communication path control method described above, the time switch of each module accommodates the input time division communication path 20 from only the terminals and I-rank circuits in the own module. Therefore, a module with a terminal or trunk that receives data signals from a terminal or trunk housed in another module can receive data signals from a terminal or trunk housed in another module.
(In > 1, the communication path cannot be controlled, and it is necessary to entrust the communication path control to the module processor on the side that accommodates the transmitting data terminal. Also, when switching the communication path between modules, the communication path cannot be controlled between the module processors.) A disadvantage is that it may be necessary to take time sequence control of the control.

[Means for Solving the Problems] The time-division call path control system of the present invention includes a plurality of modules each having one stage of time switches, and the time switch of each module is used to control time-division calls from the pond module. Each of the modules has a switch configuration that has a manpower capacity capable of accommodating communication lines and an output capacity capable of outputting to time-sharing communication lines of other modules. The corresponding input and output time-division communication paths are connected in duplicate, respectively, and the communication path switch control function is performed by the data signal reception side accommodation module and the communication path switch control function is performed by the data signal transmission side accommodation module. .

[Example] Next, the present invention will be described with reference to FIGS. 11 and 2.

1 and 2 respectively show 11.1 of the time-division channel control system of the present invention. FIG. 3 is a block diagram showing a second embodiment.

In FIG. 1, each M in a distributed configuration: 200 Mu 2
01. Time division multiplexing circuit section 120 in Mk 202
Input time-division channel from: 20 is 'II' of each module
Connected to 0.11.12. Tlo, :+1. ．． 12
The output time-division communication path 30 is duplex-connected to each corresponding time-division path T11 with the output from the pond module.

The output time-division communication path 30 for the own module is the separation circuit section 1
-21 is separated.

Note that each TI0.11.12 is a general output buffer γ(
(not shown), and the output buffer provides a high impedance output when the time switch is open.

Also, each TI0.11.12 is M)'1100,
MPJ 101. It operates under the control of MPk102. M
l 200. MJ201. Regarding the control information transfer between Mb 2.02, the bus (
(not shown), and interfaces with a host system processor (not shown) if necessary. Here, the output signal is sent to the output rank 131 of the tone generator, etc. mounted in 202 in I14.
It can be sent to the terminal 140 accommodated in Ml 200 under the control of MP+100 of MP0, and the terminal 140
The MP+100 of the Ml200 that accommodates a
Connection switching can be performed such that the signal is received to 40. The input/output trunk 130, such as a conference trunk, installed in the M, 201 is the MPJIOI of its own module.
The communication path is controlled by the control of the module M+ 200.
M also to the terminals 140 and 141 accommodated in Mk202,
From 201, the transmission bus can be set.

In this way, both the reception bus control of the terminal in the own module and the transmission bus control to a plurality of terminals housed in the module are possible. For these two control operations, one control procedure with better processing efficiency is adopted in accordance with the sequence required for each service function of the exchange. However, in the first embodiment, the only thing that must be avoided is that the same time slot of the output time-division channel 30 is used simultaneously between the modules in accordance with the control information between the respective processors.

Next, in FIG. 2, the second embodiment shows an example in which the time-division channel capacities of the T10, 11, and 12 switch configurations provided in each module are different. This is a system with a distributed configuration in which the communication path control function and secondary leg procedure required according to the functional circuits of each distributed module differ depending on each module, and its functions and operations are in accordance with the first embodiment. Therefore, the explanation will be omitted.

〔Effect of the invention〕

As explained above, the present invention has the ability to increase the processing speed and control processing according to the service functions of the exchange by combining the time-division call path control FR function by the receiving side accommodation module and the call path control function by the sending side accommodation module. This has the effect of simplifying procedures, and is particularly effective in systems such as electronic private branch exchanges and digital key telephone systems that control communication paths in a complex and complicated manner with many service functions. In addition, these small and medium capacity l
Since the switching equipment requires a small capacity of the time switch, it can be implemented as an LSI with the maximum capacity, and according to the present invention, changes in the configuration of bus and switch capacities do not pose a problem.

[Brief explanation of the drawing]

FIGS. 1 and 2 respectively show the first example of the time-division channel control system of the present invention. Block diagram showing the second embodiment, FIG.
FIG. 7 shows the first example of the conventional time-division channel control system.
~ It is a block diagram showing a fifth example. 10.11.12...Time, Switch (T), 20.
... Input time division communication path, 30... Output time division communication path,
100.101,102...Module processor (
MP+, MPJ, MPh), 103- System processor (SP), 110... Basic module, 111... Expansion module, 120... Time division multiplexing circuit section, 121... Separation circuit section, 130. ...Input/output rank, 131...Output rank, 140.1
41...Terminal, 200,201.202...Module (Ml, MJ, Mk>, 30C1...Bus. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 6)

Claims (1)

[Claims] In a distributed control type time division switch consisting of a plurality of modules each having one stage of time switches, the time switches of each module have an input capacity capable of accommodating time division communication paths from other modules, and The module has a switch configuration that has an output capacity capable of outputting to the time-division communication path of the module, and has a circuit that provides a high impedance output when the time switch is opened, and the corresponding input and output time-division communication paths of each of the modules are connected in a duplex manner. What is claimed is: 1. A time-division call path control system characterized in that it has both a call path switch control function by a data signal receiving side accommodation module and a call path switch control function by a data signal sending side accommodation module.