JPH0431460B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] The present invention provides a facsimile connection device with a test mode instruction means, a pseudo-host means, and a network control device connection means, so that it can be disconnected from the host processing device in the event of a system failure, etc. It is possible to check the operation between the facsimile connection device and the facsimile device.

[Industrial application field]

The present invention relates to a test method for a facsimile connection device in a data processing system that controls connection of facsimile devices.

[Conventional technology]

When connecting a facsimile device to a data processing device such as a computer, the communication procedure of the facsimile device and the communication procedure of the data processing device (including the communication control device) are different, and regarding the sent and received data, one is image data and the other is carrier data. Since there is a difference in interface between the two, a method is generally adopted in which a facsimile connection device is provided between the two to absorb the difference in the mutual interface.

In the above-mentioned system, there may be cases where it is desired to perform an operation check test with the host data processing device disconnected, such as when a system failure occurs. In order to conduct such tests, the conventional method was to add a dialing function to the facsimile connection device, dial the desired fax from there, and check various operations after the connection was completed. are doing.

[Problem that the invention seeks to solve]

In normal operation of a general system that includes a facsimile connection device, the operation of connecting the facsimile device is performed by the host data processing device controlling the network control device, and the dialing function is performed by the facsimile connection device. Since it is not necessary for the time being, adding a dialing function only for testing purposes has the disadvantage that it is not economical.

[Means for solving problems]

FIG. 1 is a block diagram showing the principle of the present invention, and is a functional block diagram of a facsimile connection device.

In FIG. 1, 1 is a processing section, 2 is a host interface control section, 3 is a FAX interface control section, 4 is a test mode instruction section, 5 is a network control device connection control section, 6 is a main control section, and 7 is a host control unit,
8 is a FAX control unit, and 9 is a pseudo host unit.

The present invention connects a host processing device and a facsimile device, converts output information from the host processing device into a facsimile signal, transmits it to the facsimile device, inputs the facsimile signal from the facsimile device, and processes the host processing device. A facsimile connection device having a function of transmitting to a device includes a test mode instruction means 4, a pseudo host means 9 for simulating the operation of the host processing device in the test mode, and a pseudo host means 9 for simulating the operation of the host processing device in the test mode. It has a network control device connection means 5 having a function of generating data, and establishes a network by dialing from any facsimile device connected to the line in a state logically separated from the host processing device, The present invention is characterized in that it is configured such that facsimile signals can then be transmitted and received independently with the facsimile device without going through the host processing device.

[Effect]

The present invention provides a facsimile connection device with a test mode input means, a pseudo host means, and a network control device connection means, connects a line by dialing from the facsimile device in a test mode state, and after the main connection, A pseudo host in the facsimile connection device is operated, and the facsimile connection device is made to operate as if it were connected to a host, thereby making it possible to confirm the connection operation with the facsimile device. . By doing this, the equipment used in the operational state can be used as is, unnecessary functions added to the equipment under test can be kept to a minimum, and it is possible to check the operation of the target equipment at low cost and easily. .

〔Example〕

FIG. 2 is a diagram showing one configuration example of a system to which the present invention is applied, in which 10 is a facsimile connection device, 11 is a host processing device, 12 is a network control unit (NCU), and 13 is a switching network. , 14 is a facsimile machine (FAX). As is clear from FIG. 2, the facsimile connection device 10 has a connection interface between a host processing device 11 and a network control unit (NCU).

FIG. 3 is a diagram showing the hardware configuration of a facsimile connection device according to an embodiment of the present invention, in which 20 is a microprocessor (MPU) section;
1 is a host interface control section, 22 is a storage section, 23 is a FAX interface control section, 24 is a modem section, 25 is a network control device connection control circuit section, 2
6 is an internal bus, and 27 is an operation section.

When the above-mentioned FIG. 1 (principle diagram) and FIG. Processor (MPU) section 20
This corresponds to a portion of the storage unit 22 that stores various programs.

Also, the host interface control unit 2, FAX interface control unit 3, test mode instruction unit 4, and network control device connection control unit 5 in FIG. It corresponds to the ace control section 23, the operation section 27, and the network control device connection control circuit 25.

FIG. 4 is a diagram showing the configuration of a network control device connection control circuit diagram 25. As shown in FIG. In Figure 4, 30, 31
is a flip-flop, 32 is an AND circuit, 33,
34 is an OR circuit, 35 to 42 are inverting circuits, 43 is a test mode input signal (line), DR, ER, CI (output side) are various interface lines connected to the host data processing device side, CML, DSC, CI (input side)
are various interface lines connected to the network control device side, and CLOCK is a clock signal line. As is clear from Figure 4, from the host interface
When the DSC or CI signal from the FAX interface via the network control device is detected to be on while the ER signal or test mode input is on, the flip-flop 31 stores this information.
operates and sends a DR signal to the host interface and a CML signal to the FAX interface. Turning on this CML signal means that the line is connected, and the line connection status is suspended until the ER signal or test mode input is turned off.

FIG. 5 is a diagram showing an operation sequence between a facsimile connection device, a network control unit (NCU), and a facsimile device (FAX) in the embodiment.

The operation sequence shown in FIG. 5 will be explained below.

In Figure 5, using a fax telephone,
When the fax operator dials the telephone number of the NCU connected to the fax machine,
The NCU notifies the facsimile connection device of a CI signal as an incoming call indication signal. When the facsimile connection device is in test mode, the circuit operates as shown in Figure 4 when a CI signal is detected, turning on the line connection command (CML) signal to the NCU and turning on the data set ready (CML) signal to the host interface. Signal the Data Set Ready (DR) signal as on. Taking this as an opportunity, the facsimile connection device transmits a TONE signal (audible single frequency signal) to prompt the fax operator to press the receive fax button. Then, from the fax
When the fax operator enters the SIGNAL reception state and presses the receive button, the NSF,
When the DIS signal (signal notifying the fax capability) is received, the DCS signal (digital command signal =
It then sends a training signal (attribute instruction of the transmission data) and waits for a ready-to-receive (CFR) signal from the fax. When this is returned, image data transmission begins, and when this is completed, a next page control signal is transmitted. In this example, an MPS signal for continuation to the next page is sent and a reception completion signal (MCF) from the fax is waited for. When this is returned, continue,
Send image data. At the timing of sending the next page control signal, if the test mode is canceled, a processing end signal (EOP) is sent and the FAX is sent.
Wait for the reception completion signal (MCF) from the terminal and disconnect the line.

FIG. 6 is a diagram showing the internal operation of the facsimile connection device during testing. In FIG. 6, the section labeled "host control (pseudo host)" indicates the operation of the host control unit 7 and pseudo host section 9 shown in FIG. The section labeled "FAX control" indicates the operation of the FAX control section 8 shown in FIG.

The facsimile connection device of the embodiment is configured such that the main control unit 6 issues commands to the host control 7 and the FAX control unit 8, and proceeds with the FAX procedure sequence while receiving responses thereto.

In Figure 6, TEXT GET, which is sent from the "main control" to the "host control" and "FAX control"
TONE SEND, SIGNAL, GET, SIGNAL
PUT, TCF PUT, RSP PUT, image data
PUT, CML off, and DR off mean commands from the main control unit. And among them, “…GET” requests data of “…” or “…”
It is an instruction to receive the signal of "...
"PUT" and "...SEND" instruct to send a "..." signal from the FAX control unit, or indicate that a "..." signal is given to a pseudo host.
Also, "host control (pseudo host)" and "FAX control"
``END'' sent from ``main control'' to ``main control'' reports the end of the instructed operation. Since the operational flow in FIG. 6 is easily understood, detailed explanation thereof will be omitted.

As described above, when the test mode is instructed, the pseudo host section 9 operates, and the pseudo host section 9 operates as if it had received TEXT from the real host, and the main control section 6 and the FAX control section 8
It can operate in the same way as normal operation.

In this way, with the host disconnected,
Connection test of fax and facsimile connection device,
This can be done easily and in conditions close to operational conditions.

〔Effect of the invention〕

According to the present invention, when testing a facsimile connection device in a state separated from a host processing device, the line is connected by making a FAX call without equipping the facsimile connection device with a dialing function,
It is possible to perform a connection test between a FAX and a facsimile connection device, and the economic effect is large.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the principle of the present invention, Fig. 2 is a block diagram of a system to which the present invention is applied, Fig. 3 is a block diagram of an embodiment of the present invention, and Fig. 4 is a network control device connection control circuit. FIG. 5 is a diagram showing the operation sequence of the embodiment, and FIG. 6 is a diagram showing the internal operation of the facsimile connection device during testing. In FIG. 1, 2 is a host interface control unit, 3 is a FAX interface control unit, 4 is a test mode instruction unit, 6 is a main control unit, 7 is a host control unit, 8 is a FAX control unit, and 9 is a pseudo host. Department.

Claims (1)

[Claims] 1. Host processing device 11 and facsimile device 14
, converts the output information from the host processing device 11 into a facsimile signal, transmits it to the facsimile device 14 , inputs the facsimile signal from the facsimile device 14 , and connects the host processing device 1 to the facsimile signal.
Facsimile connection device 1 with the function of sending to 1
0, a test mode instruction means 4, a pseudo host means 9 for simulating the operation of the host processing device 11 in the test mode, and an ER from the host processing device 11 in the test mode.
It has a network control device connection means 5 having a function of generating a signal in a pseudo manner, and is connected by dialing from any facsimile device 14 connected to the line in a state logically separated from the host processing device 11. A test of a facsimile connection device characterized in that the device is configured to be able to establish a network by using the host processing device 11, and thereafter independently transmit and receive facsimile signals to and from the facsimile device 14 without going through the host processing device 11. method.