JPH03123267A - Signal type automatic setting system for relay line - Google Patents

Abstract

PURPOSE:To accommodate a relay line with a common circuit and to simplify an exchange by selecting a common line signal system or a simple common line signal system corresponding to a common line signal or a simple common line signal identified by a common line signal reception control section. CONSTITUTION:When the system is set to the common line signal system, a processing control circuit 201 generates a common signal from a received control signal 701 and sends the result as a signal 301. When the system is set to the simple common line signal system, a simple common line signal 401 received from a trunk section 801 via a time division switch 101 is converted into the signal 301 and sent. The trunk section 801 starts the operation by receiving a simple common line signal 404 and the simple common line signal is sent to a relay line via a time division switch 101 and a common line signal transmission control circuit 501 to accommodate the common line signal or the relay line and the simple common line signal with the common circuit.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an automatic signal type setting system for trunk lines.

[Conventional technology]

Conventionally, in switching equipment, the trunk line of the common line signaling system and the trunk line of the simple common line signaling system have been accommodated by independent circuits, respectively. This relationship is shown in FIG. In FIG. 2, 11o1 is a time division switch, 1201 is a processing control circuit, 1301 to 1306 are simple common line signals,
1401 and 1402 are common line signals, 1501 is a simple common line signal sending circuit, 1601 is a simple common line signal receiving circuit,
1701 is a control signal, 1801 is a common line signal sending circuit,
1901 is a common line signal receiving circuit, 2001 is a trunk section, and the simple common line signal receiving circuit 1601 receives the simple common line signal 1304 from the relay line of the simple common line signal system, generates a control signal 1701, and controls the processing. circuit 120
Send to 1. The processing control circuit 1201 controls the time division switch 1101 according to the received control signal 1701 to connect the trunk section 2001 and the simple common line signal sending circuit 1501.
and simple common signal receiving circuit 1601.

The trunk section 2001 starts operation by receiving the simple common line signal 1306, and sends out the simple common line signal to the trunk line via the simple common line signal sending circuit 1501. Further, the common line signal receiving circuit 1901 receives the common line signal 1402 from the relay line of the common line signaling system, generates a control signal 1701, and sends it to the processing control circuit 1201. The processing control circuit 1201 controls the common line signal sending circuit 1801 according to the received control signal 17o1, and generates and sends out the common line signal 1401.

[Problem to be solved by the invention]

In the conventional switching device described above, the relay line of the common line signaling system and the relay line of the simple common line signaling system are each accommodated by independent circuits, so that the configuration of the switching apparatus is complicated.

[Means to solve the problem]

The signal type automatic setting method of the relay line of the present invention is a simple common relay line that performs an exchange operation using a common line signal as a selection signal and a relay line of a common line signal system that performs an exchange operation using a dial-pal included code and a multifrequency code as a selection signal. In a switching device accommodating a relay line of a line signaling system, a common line signal reception control unit receives a signal sent from the relay line to identify and control a common line signal and a simple common line signal; A common line signal transmission control unit that generates a signal and sends either the common line signal or the simple common line signal to the relay line, and receives the simple common line signal and controls the dial pulse code and the multifrequency code. a trunk section, a time division switch connecting the common line signal reception control section, the common line signal transmission control section and the trunk section, the common line signal reception control section, the common line signal transmission control section and the time division switch; a processing control unit that controls the switch, the common line signal reception control unit identifies whether the signal sent from the relay line is a common line signal or a simple common line signal, and the processing control unit The configuration is such that the line signal sending control unit is automatically set to either the common line signaling system or the simple common line signaling system that corresponds to the signal type identified by the common line signal reception control unit.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Referring to FIG. 1 showing an embodiment of the present invention, a common line signal reception control circuit 601 identifies whether a signal 302 sent from a trunk line is a common line signal or a simple common line signal and sends a control signal. 701 to generate the processing control circuit 201.
At the same time, a simple common line signal 402 is sent to the time division switch 101. When the common line signal reception control circuit 601 identifies a common line signal according to the control signal 701 received from the common line signal reception control circuit 601, the processing control circuit 201 changes the common line signal transmission control circuit 501 to the common line signal line signal method. Set. In addition, the common line signal reception control circuit 6
When 01 identifies a simple common line signal, it sets the common line signal transmission control circuit 501 to the simple common line signaling system, controls the time division switch 101, and connects the trunk section 801, the common line signal transmission control circuit 501, and the common line. Signal reception control circuit 601
Connect with. The common line signal transmission control circuit 601 operates according to the signal system set by the processing control circuit 201. When the common line signaling method is set, the processing control circuit 20
A common line signal is generated from the control signal 701 received from 1 and sent out as signal 301. Furthermore, when the simple common line signaling system is set, the simple common line signal 401 received from the trunk section 801 via the time division switch 101 is converted into a signal 301 and sent out. The trunk unit 801 starts operating by receiving the simple common line signal 404, and the time division switch 101. Common line signal transmission control circuit 50
By sending the simple common line signal to the trunk line via 1, the common line signal of the trunk line and the simple common line signal can be accommodated by a common circuit.

〔Effect of the invention〕

As described above, according to the present invention, the relay line of the common line signaling system and the relay line of the simple common line signaling system can be accommodated by a common circuit, and the configuration of the switching device can be simplified.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 101... Time division switch, 201...
・Processing control circuit, 301, 302... Signal, 4
01-404...Simple common line signal, 501...
...Common line signal transmission control circuit, 601...
Common line signal reception control circuit, 701... Control signal, 801... Trunk section.

Claims (1)

[Claims] In a switching device that accommodates a relay line of a common line signaling system that performs a switching operation using a common line signal as a selection signal and a trunk line of a simple common line signaling system that performs an switching operation using a dial pulse code and a multifrequency code as a selection signal, A common line signal reception control unit that receives signals sent from the trunk line, identifies and controls common line signals and simple common line signals, and generates common line signals and selects between common line signals and simple common line signals. a common line signal transmission control unit that sends out the signal to the trunk line; a trunk unit that receives the simple common line signal and controls the dial pulse code and the multifrequency code; the common line signal reception control unit; a time division switch that connects the line signal transmission control section and the trunk section; and a processing control section that controls the common line signal reception control section, the common line signal transmission control section, and the time division switch; The signal reception control section identifies either a common line signal or a simple common line signal from the signal sent from the trunk line, and the processing control section controls the common line signal reception control for the common line signal transmission control section. 1. An automatic signal type setting method for a trunk line, characterized in that the signal type is automatically set to either a common line signaling method or a simple common line signaling method corresponding to a signal type identified by a relay line.