JP2827234B2 - Communication control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is used for a communication control device for data communication. CC
The present invention relates to a method for transmitting dial number information from an automatic call connection unit of a communication control device having a common control unit and an automatic call connection unit conforming to the ITT Recommendation V.24 200 series interface.

〔Overview〕

The present invention relates to a communication control apparatus, wherein a plurality of dial numbers are stored in advance in the automatic call connection unit in accordance with a dial number information setting instruction of the central processing unit, and one dial designated based on the dial number information instruction of the central processing unit. The automatic transmission of the number information eliminates the need for a dial number transfer operation between the common control unit and the automatic call connection unit, thereby shortening the dial number information transmission time.

[Conventional technology]

Conventionally, a communication control device having a common control unit and an automatic call connection unit conforming to the CCITT recommendation V.24 200 series interface, even if the dial number of the partner device is the same and is not changed, every time the automatic call operation, Through a central processing unit, dial number information is transferred to a common control unit and an automatic call connection unit by a dial number command.

[Problems to be solved by the invention]

However, in such a conventional communication control device, even if the dial number of the partner device is the same and is not changed, the dial number information is transmitted to the automatic call connection unit through the central processing unit every time the automatic call operation is performed. Is transferred to the central processing unit and the communication control unit, the operation of transferring dial number information on the input / output channel is involved, and there is a drawback that a load is imposed on the whole system and overhead is increased. Was.

Also, a method has been proposed in which a common control unit is provided with a memory for storing a plurality of dialed number information, thereby eliminating the operation of transferring the dialed number information between the central processing unit and the communication control device (Japanese Patent Application No. Sho 63-4).
9876), however, also in this method, there is a transfer operation of dial number information between the common control unit and the automatic call connection unit, and accordingly the dial number information transmission time increases, an extra overhead increases, and the occupation time of the common bus increases. There were disadvantages.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks, and does not require a dial number information transfer operation between a common control unit and an automatic call connection unit. The purpose is to provide.

[Means for solving the problem]

The present invention relates to a communication control apparatus having a plurality of automatic call connection units including means for transmitting dial number information designated by a dial number information transmission command of a central processing unit to each network control apparatus, wherein the transmitting means is A plurality of dial number information storage memories for storing a plurality of dial number information in an area divided into a plurality of areas based on a dial number information setting command of the central processing unit at the time of initial setting or setting change; A multi-dial number information storage memory control circuit including a head address of an area of the multi-dial number information storage memory in which corresponding dial number information is stored based on a transmission command and an address counter indicating the length of the dial number information;
Means for reading out the dial number information of the address designated by the plural dial number information storing memory control circuit from the plural dial number information storing memory and outputting the read dial number information to the network control device.

[Action]

At the time of initial setting or setting change, a plurality of pieces of dial number information are stored based on a dial number information setting command of the central processing unit. The means for automatically sending out automatically sends out as dial number information designating a corresponding one of the contents of the storing means based on the dial number information sending command. The above operation eliminates the need for a dial number transfer operation between the common control unit and the automatic call connection unit, thus reducing unnecessary overhead and shortening the dial number information transmission time.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a data communication device to which the communication control device of the present invention is applied.

In FIG. 1, 21 is a central processing unit, 22 is an input / output channel controller, 3 is a communication control unit, 4 is a common control unit, 5-1, 5-2,... −
1, 6-2,..., 6-n are automatic call connection sections, 7-1,
7-2,..., 7-n are MODEM (modulator / demodulator), 8-
.., 8-n are NCUs (Network Controllers), 9 is a public communication line, 10-1, 10-2,..., 10-n is a partner device, 11-1,. , 11-n are peripheral control devices, 100-1, 1
00-20, ..., 100-n are input / output channels, 200-1, 200
,..., 200-n are line connection units 5-1,.
,..., 7-n, and 300-1, 300-2,..., 300-n are the automatic call connection units 6-1,. -1,..., 8-n;
Is a magnetic tape device.

FIG. 2 is a block diagram of a communication control apparatus according to one embodiment of the present invention. FIG. 3 is a block diagram of an automatic call connection unit of the communication control device according to the present invention.

In FIGS. 2 and 3, the communication control device 3 sends the input / output channels 100-1,..., 100-n to the central processing unit 21.
And a common control unit 4 connected to the common control unit 4 via a common bus 400 and an interface line 200-
MODEM7-1, ..., 7-n via 1, ..., 200-n
,..., 5-n connected to the common control unit 4 via a common bus 400, a line driver 15, a line receiver 16, and an interface line.
NCU8-1,..., 8- through 300-1,.
n, and CRQ signals 300-1-5, ..., 300-n-
5, DPR signal 300-1-6, ..., 300-n-6, DLO signal
300-1-7, ..., 300-n-7, PND signal 300-1-
8,..., 300-n-8, DSC signal 300-1-9,.
00-n-9, ACL signals 300-1-10, ..., 300-n-10 and P
Input / output I transfer 300-1-11, ..., 300-n-11. A plurality of automatic call connection units 6-1 including means for sending the dial number information specified by the dial number information sending command of the NCU interface control circuit 14 and the central processing unit 21 to the respective NCUs 8-1,..., 8-n. ,..., 6-n.

Here, the feature of the present invention is that the transmitting means is connected to the common bus 400 and, upon initial setting or setting change, transmits a plurality of pieces of dial number information based on the dial number information setting command of the central processing transmission 21. As means for storing, a plurality of dial number information storage memories 12 and a corresponding one of the contents set in the common bus 400 and stored in the plurality of dial number information storage memories 12 based on the dial number information transmission command are stored in the NCU 8. Means for automatically sending out the designated dial number information to -1,..., 8-n include a multiple dial number information storage memory control circuit 13, an NCU interface control circuit 14, and a line driver 15.

The operation of the communication control device having such a configuration will be described. 1 to 3, line connection units 5-1,...
.., 5-n are the same, and the higher the priority, the younger the dash number. Automatic call connection unit 6-1,
.., 6-n are also connected to the line connection units 5-1,.
Like n, the higher the priority, the lower the number. If the dash numbers are the same, the line connection unit 5
-1,..., 5-n is the automatic call connection unit 6-1.
.., 6-n has a higher priority. Each line connection unit 5-
1,..., 5-n are communication lines, that is, MODEM 7-1,.
, ..., 7-n and interface lines 200-1, ..., 2
00-n are accommodated one by one. Each of the automatic call connection units 6-1,..., 6-n has an automatic call line, that is, NCU8.
-1,..., 8-n
1,..., 300-n are accommodated by one line. Line connection units 5-1,..., 5-n and automatic call connection units 6-1,.
, 6-n are used in pairs for each dash number in FIG. 1, but this is not always the case and the combinations are free. The communication control device 3 includes a common control unit 4 having a microprocessor, an input / output channel control circuit, a microprogram storage memory, a common bus control circuit, and a plurality of line connection units 5-1,. ,..., 6-n. The line connection units 5-1,..., 5-n are automatic call connection units 6-1,
,..., 6-n, normal transmission / reception data is exchanged between MODEMs 7-1,..., 7-n after the automatic calling operation is completed. The illustration is omitted.

The central processing unit 21 includes line connection units 5-1,..., 5-n
When exchanging transmission / reception data with the partner devices 10-1,..., 10-n via the public communication line 9, the automatic call connection units 6-1. To perform an automatic calling operation. At the time of initial setting or resetting after the start-up of the device, the central processing unit 21 issues a dial number information setting command in advance, and the automatic call connection units 6-1,.
The dial number information read from the main storage device 17, the magnetic disk device 18 or the magnetic tape device 19 is stored in a designated area of the plural dial number information storage memory, for example, area 1. At this time, the address 1 corresponding to the area 1 in the multiple dial number information storage memory control circuit 13 points to the leading address of the area 1 in the multiple dial number information storage memory 12 and the address 1 in the multiple dial number information storage memory control circuit 13. The counter 1 corresponding to the area 1 holds the transmitted dial number information length. When an automatic calling operation is required, the central processing unit 21 issues a dial number information transmission command. The dial number information transmission command has an index function for pointing to an arbitrary address counter in the multiple dial number information storage memory control circuit 13. For example, an address 1 corresponding to area 1 and a counter 1 are indexed, and an automatic calling operation is started according to a predetermined sequence. The NCU interface control circuit 14 controls various control signals among the NCUs 8-1,..., 8-n. For example, the preset dial number information in area 1 is DS1 signal {dial number information (2 ⁰ ) signal} 300-1-
1,..., 300-n-1, DS2 signal {Dial number information (2 ¹ ) signal} 300-1-2,..., 300-n-2, DS4 signal {Dial number information (2 ² ) signal} 300-1-3, ...
..., 300-n-3, DS8 signal {dialed number information (2 ³⁾ signal} 300-1-4, ......, 300-n -4 interfaces lines 300-1, ..., through 300-n NCU8-1, ..., 8
-N, and is automatically transmitted for the dial number information length, for example, 11 digits. When the automatic calling operation is completed, the address 1 automatically points to the initial value, that is, the head address of the corresponding area 1, and the counter 1 automatically re-holds the initial value, that is, the length of the dial number information to be transmitted. . This counter is decremented by "+1" from the initial value every time the dial number information is transmitted. Immediately after dial number information transmission is completed, the counter becomes "0" and the original value is finally reset as described above. It has become. By a series of these operations, when the data communication device is initially set or reset, the area 0, the area 1, the area 1 in the multiple dial number information storage memory 12 in the automatic call connection sections 6-1,. ,..., Area n and a plurality of dial number information storage In memory control circuit 13, address 0, counter 0, address 1, counter 1,. By storing, the load on the input / output channel controller 22 can be reduced, and the NCUs 8-1,.
n can reduce the time required for sending dial number information.

〔The invention's effect〕

As described above, the present invention provides not only a dial number information transfer operation between the central processing unit and the communication control device for each automatic call operation, but also a dial number transfer between the common control unit and the automatic call connection unit. There is an excellent effect that no operation is required and the dial number information transmission time can be shortened.

[Brief description of the drawings]

FIG. 1 is a block diagram of a data communication device to which a communication control device of the present invention is applied. FIG. 2 is a block diagram of a communication control device according to an embodiment of the present invention. FIG. 3 is a block diagram of an automatic call connection unit of the communication control device according to the present invention. 3 ... Communication control device, 4 ... Common control unit, 5-1, 5-
2,..., 5-n line connection unit, 6-1, 6-2,.
..., 6-n ... automatic call connection section, 7-1, 7-2, ...
..., 7-n ... MODEM, 8-1, 8-2, ..., 8-n
… NCU, 9… Public communication line, 10-1, 10-2,…
..., 10-n ... partner device, 11-1, ..., 11-n ... peripheral control device, 12 ... dial number information storage memory, 13 ...
... Dial number information storage memory control circuit, 14 ... NCU interface control circuit, 15 ... Line driver, 16 ...
Line receiver, 21 Central processing unit, 22 Input / output channel controller, 100-1, 100-2, 100-
n: Input / output channels, 200-1, 200-2, ..., 200
-N .... Interface line with MODEM, 300-1, 30
0-2, ..., the interface line between the 300-n ...... NCU, 300-1-1 ...... DSI signal {dialed number information (2 ⁰⁾
Signal}, 300-1-2 ...... DS2 signal {dialed number information (2 ¹⁾ signal}, 300-1-3 ...... DS4 signal {dialed number information (2 ²⁾ signal}, 300-1-4 ...... DS8 signal {dial number information (2 ³ ) signal}, 300-1-5 ... CRQ signal {call request signal}, 300-1-6 ... DPR signal {number display signal}, 300-1-7 ... DL0 signal {line busy signal}, 300-1-8 ... PND signal {next number request signal}, 30
0-1-9: DSC signal {connection complete signal}, 300-1-10:
ACL signal {call abandon signal}, 300-1-11 ... PI signal {power indication signal}, 400 ... common bus.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 11/00-11/10 H04M 1/27-1/278

Claims (1)

(57) [Claims] 1. A communication control device having a plurality of automatic call connection sections including means for sending dial number information designated by a dial number information sending command of a central processing unit to each network control device, wherein said sending means is provided. A multi-dial number information storage memory for storing a plurality of dial number information in an area divided into a plurality of areas based on a dial number information setting command of the central processing unit at the time of initial setting or setting change; A multiple dial number information storage memory control circuit including a head address of an area of the multiple dial number information storage memory in which corresponding dial number information is stored based on an information transmission instruction and an address counter indicating the length of the dial number information; The address specified by the multiple dial number information storage memory control circuit. Means for reading out the dial number information from the plurality of dial number information storage memories and outputting the read out dial number information to the network control apparatus.