JPH01215157A - Network controller for facsimile store and forward switching system - Google Patents

Abstract

PURPOSE:To efficiency progress a series of an outgoing action such as call to line, transmission of dial information, reply of opposite party and start of communication by decentralizing a dial transmission circuit at every line adaptor. CONSTITUTION:An NCU 12 of a 1st line adaptor section 1 is provided with a corresponding dial transmission circuit 202 and the NCU 22 is provided with a relevant dial sending circuit similarly. A dial sending circuit 202 converts the dial number data sent to a line exchange into the dial signal of a PB signal which is a classification at every line or 10pps/20pps dial pulse and sends the signal to the line exchange. Thus, no waiting is required even with other dial sending request.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of industrial application) The present invention applies to the network control device N! (hereinafter referred to as NCU), especially regarding dial sending times@
The present invention relates to a network control device having:

(Prior art) Conventionally, the dial sending circuit of the network control device in the storage-and-forwarding device has a common part, and the dial sending circuit of the network control device in the store-and-forwarding device has a common part and sends a dial sending request to each line corresponding section to determine which line to send each time. Please note that this is a common type that can be used by switching between the dial output and the output mode.

(Problem to be solved by the invention) Since the dial sending circuit of the conventional factor j +1 storage and forwarding device described above is shared by multiple line handling units, it is difficult to receive dial sending requests from multiple line handling units at the same time. If a dial transmission request is issued, only one of the dial transmission requests from the line corresponding section causes the dial transmission operation 2 to be performed, and if there is another dial transmission request, there is a disadvantage that all the dial transmission requests are held in the meantime.

An object of the present invention is to determine whether or not dialing is to be sent to the wide section for each line, and to determine whether or not the dial is to be sent to the wide section, and to transmit the dial number information to the line switching equipment. signal or a 10pps/20pps dial pulse type dial signal and send it to the circuit switching equipment! −By the above disadvantages? remove,
To provide a network control device for a facsimile storage and forwarding device configured so that a waiting list does not occur even if there is a request to send out a fixed dial.

(Means for Solving the Problems) A network control device for a facsimile storage and forwarding device according to the present invention is provided in each line corresponding unit in order to store and forward facsimile messages from G3 high-speed facsimile terminals according to the CCITT recommendation. The system includes a dial sending request determination circuit and a dial sending circuit.

The dial sending request determination circuit determines that a dial sending request generated by each line corresponding section during a call operation to the line switching equipment is a dial sending request to its own line corresponding section. This is the sixth thing to do.

The dial sending circuit sends dial number data to the line switching equipment using PB(8), which is the dial type for each line.
This is for the purpose of converting the dial signal into a dial signal of the type 10Pps/20ppm or 10Pps/20ppm dial pulse and sending it to the circuit switching equipment.

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

FIG. 1 is a block diagram showing an embodiment of the connection to the communication control unit in the network control installation of the facsimile storage and forwarding device according to the present invention. ) In Figure 1, 10G
1 is a communication control section, and 1.2 is a first and a fourth line corresponding section, respectively. ) In the first line corresponding section 1, 10 is a line control section, 11 is a modem, and 12 is an NCU. Fourth
In the line control unit 2, 20 is a line control unit, 21 is a modem, and 22 is an NCU.

In FIG. 1, the NCU 12 of the first line corresponding section 1 is equipped with a corresponding dial sending circuit, and similarly the NCU 2
2 is equipped with a corresponding dial sending circuit. All of the above-mentioned line corresponding parts have the same device configuration.

FIG. 2 is a block diagram showing the internal configuration of the NCUI 2 shown in FIG. In FIG. 2, 201 is a dial sending request determination circuit, 202 is a dial sending circuit, 203
is a calling/dial sending circuit, 204 is an incoming call/response monitoring o
o Road, 205G12+1! /4-wire conversion circuit (hereinafter referred to as H
It is called YB. , ), 206 is a tone sending circuit, and 20f is a dial receiving circuit.

Next, the operation from placing a call to the line to dialing is performed in the first step.
This will be explained with reference to FIG.

In FIG. 1, a communication control unit 10 sends a call request to line 3.
0 to the first line corresponding section 1, the line control section 1
0 sends the above request to the calling/dial sending circuit 203, and the calling/dial sending circuit 203 forms a DC loop with the line 3 to perform a calling operation.

Next, the communication control unit 10G sends a dial sending request along with dial type information and dial number information (times @ l!
It is sent to the dial sending request determination circuit 201 via the tlla section 1G. The dial transmission request determination circuit 201 determines that the transmission request is a request for the own line, and then transmits the dial number information to the dial transmission circuit 5202 or the calling/dial transmission circuit 203 according to the dial type information.

If the dial type information is a PB signal, the dial sending circuit 202 converts the dial number information into a PR (m number) and sends it to the line.On the other hand, if the dial type information is a DP (10p
pm/20ppm), the call/dial sending circuit 203 sends the dial number information to a dial pulse (10p
ps/20ppm) and sends it to time 3.

(Effects of the Invention) As explained above, the present invention distributes the dial sending circuit to each line corresponding section, so that the sending operation does not have to wait while the dial sending circuit is in use. This has the advantage that a series of outgoing operations such as calling someone, sending dialing information, responding to the other party, and starting communication can be carried out efficiently.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a facsimile IJ storage and forwarding device according to the present invention. Is Fig. 2 an example of the NCU shown in Fig. 1? FIG. 1.2...Line support section 3.4...Line 10.20.Fist/Line training section 11.21...Modem 12.22...NCU 100...Communication 1ftlJ part 201...Dial sending request determination circuit 202...Dial sending circuit 203...Call/dial sending circuit 204, φ, Call receiving/response monitoring circuit 205---2m/4'4 conversion circuit 206...・Tone sending circuit 207 --- dial receiving circuit

Claims (1)

[Claims] A network control device for a facsimile storage and forwarding device provided in each line corresponding section to store and exchange facsimile messages from a G3 high-speed facsimile terminal according to the CCITT recommendation, and to a line switching device generated for each line corresponding section. a dial sending request determination circuit for determining whether a dial sending request during a calling operation is a dial sending request to the own line corresponding section for each line corresponding section; and dial number data sent to the line switching device. PB signal, which is the dial type for each line, or 10pps/20pp
1. A network control device for a facsimile storage and forwarding device, comprising: a dial sending circuit for converting a dial pulse of type s into a dial signal and sending it to the line switching device.