JPH05260535A - Low power consumption subscriber processing circuit - Google Patents

Abstract

PURPOSE:To constitute the circuit so that a transmission processing is not executed at the time when a subscriber corresponding part is not mounted yet by controlling whether a transmitting data is outputted through a processing circuit or not by an output of an inhibiting circuit corresponding to an output from a package detecting circuit. CONSTITUTION:A package detecting circuit 20 sends out an L level H as for an unpackaged subscriber corresponding part, and a subscriber selecting circuit 21 outputs an L level inhibiting signal 15. As a result, an operation of a processing circuit 24 is stopped through an inhibiting circuit 23, and transmitting data 18 is not sent out. According to such a configuration as a transmission processing is not executed at the time when this subscriber corresponding part is not packaged yet, there is not futile power consumption and the power consumption is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a subscriber termination device, and more particularly to a low power consumption subscriber processing device.

[0002]

2. Description of the Related Art Conventionally, this type of circuit has performed similar processing regardless of whether or not a subscriber corresponding portion is mounted.

[0003]

Conventionally, this kind of circuit performs the same processing regardless of whether the subscriber interface is mounted or not mounted, so that power is used for the processing that need not be performed. .

The present invention has been made in view of the above-mentioned conventional circumstances, and therefore, an object of the present invention is to provide a novel subscriber of low power consumption which can solve the above-mentioned problems inherent in the conventional technology. It is to provide a processing device.

[0005]

In order to achieve the above-mentioned object, a subscriber processing circuit according to the present invention includes a mounting detection circuit which receives a mounting output of a subscriber corresponding section, and an output from this mounting detection circuit. And a subscriber selection circuit having the first output of the pulse generation circuit as an input, an inhibit circuit having an output from the subscriber selection circuit and the second output of the pulse generation circuit as an input, and an output from the inhibit circuit And a processing circuit that receives the received data from the subscriber corresponding unit and outputs the transmitted data.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the accompanying drawings with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is an operation timing chart of the present invention.

In this embodiment, it is possible to implement 10 subscribers from the subscriber corresponding sections 1 to 10 (see FIG. 2), and a subscriber terminating circuit for processing the data from each subscriber corresponding section in a time division manner. is there. Especially when the subscriber support unit 2 is not installed,
explain.

Referring to FIG. 1, the processing circuit 24 receives the second pulse signal group 16 necessary for processing and the reception data 17 from the subscriber corresponding section as an input and performs termination processing, and then the result is transmitted data. Send as 18.

The mounting detection circuit 20 detects the subscriber-corresponding section from the first mounting signal group 11 of the subscriber-corresponding sections 1 to 10, and detects the unmounted subscriber-corresponding section as the second mounting signal group 12. Outputs level "H". Here, since the subscriber corresponding unit 2 is not mounted, the level "H" is output.

The subscriber selecting section 21 includes a pulse generating circuit 22.
The subscriber-corresponding part is selected by using the selection pulse 14 from the trigger as the trigger, and the second mounting signal group 12 as an input is at the level "H"
When it coincides with the subscriber corresponding part, the level "H" is transmitted as the prohibition signal 15. Here, the subscriber support unit 2
When is selected, the prohibition signal 15 outputs the level "H".

The inhibit circuit 23 outputs the first pulse signal group 13 as the second pulse signal group when the inhibit signal 15 is "L", but the inhibit signal 15 is at the level "H".
At the time of, the operation of the processing circuit 24 is stopped by prohibiting the output of the second pulse signal group 12.

[0013]

As described above, according to the present invention,
The effect of low power consumption can be obtained by not performing the processing when the subscriber corresponding unit is not mounted.

[Brief description of drawings]

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

FIG. 2 is an operation timing chart of an embodiment of the present invention.

[Explanation of symbols]

 11 ... 1st mounting signal group 12 ... 2nd mounting signal group 13 ... 1st pulse signal group 14 ... Selection pulse 15 ... Inhibition signal 16 ... 2nd pulse signal group 17 ... Received data 18 ... Transmission data 20 ... Mounting detection circuit 21 ... Subscriber selection circuit 22 ... Pulse generation circuit 23 ... Inhibit circuit 24 ... Processing circuit

Claims (1)

[Claims] 1. In a subscriber processing circuit for terminating a large number of subscribers, a mounting detection circuit having a mounting output of a subscriber corresponding unit as an input, and an output from the mounting detection circuit and a first pulse generation circuit. Of the subscriber selection circuit, the output from the subscriber selection circuit and the second output of the pulse generation circuit as inputs, and the output from the inhibit circuit and the subscriber correspondence unit. A low-power-consumption subscriber processing circuit, comprising: a processing circuit for receiving received data and outputting transmitted data.