JPS63158049U

JPS63158049U -

Info

Publication number: JPS63158049U
Application number: JP1987051760U
Authority: JP
Priority date: 1987-04-06
Filing date: 1987-04-06
Publication date: 1988-10-17

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の要部ブロツク図、第
２図は本考案を適用したオンライン・ネツトワー
ク・システムの一例を示すブロツク図、第３図は
パソコン１７のハードウエア構成例を示すブロツ
ク図、第４図は電話帳ＴＢの内容例を示す図、第
５図は回線状態表ＣＴの内容例を示す図、第６図
はＣＰＵ１の処理例のフローチヤートおよび、第
７図は公衆回線への迂回機能を有する従来のオン
ライン・ネツトワーク・システムのブロツク図で
ある。図において、１０……ホストコンピユータ、１
１，１２，３１……モデム（Ｍ）、１３，３２…
…自動回線切替装置（ＡＬＳ）、１４，１５，３
３，３４……ＭＡ型（手動発信・自動着信型）の
網制御装置（ＮＣＵ）、１６……ＡＡ型（自動発
着信型）の網制御装置（ＮＣＵ）、１７……パソ
コン、２０……専用回線、２１，２２，２３，２
４……公衆回線、２５……公衆網、３０……端末
装置（ＤＴＥ）、ＳＴ……センタ、ＭＥＭ……ダ
イヤル番号記憶手段、ＣＮＴ……発信指示手段、
ＩＮ……入力手段、ＴＢ……電話帳。 Fig. 1 is a block diagram of the main parts of an embodiment of the present invention, Fig. 2 is a block diagram showing an example of an online network system to which the present invention is applied, and Fig. 3 shows an example of the hardware configuration of a personal computer 17. 4 is a diagram showing an example of the contents of the telephone directory TB, FIG. 5 is a diagram showing an example of the contents of the line status table CT, FIG. 6 is a flowchart of an example of processing by the CPU 1, and FIG. 1 is a block diagram of a conventional online network system having a detour function to a line. In the figure, 10... host computer, 1
1, 12, 31...Modem (M), 13, 32...
...Automatic line switching device (ALS), 14, 15, 3
3, 34...MA type (manual origination/automatic call reception type) network control unit (NCU), 16...AA type (automatic call origination/reception type) network control unit (NCU), 17...PC, 20... Dedicated line, 21, 22, 23, 2
4... Public line, 25... Public network, 30... Terminal equipment (DTE), ST... Center, MEM... Dial number storage means, CNT... Calling instruction means,
IN...Input means, TB...Telephone directory.

Claims

[Scope of Utility Model Registration Claim] The center and the terminal equipment are normally connected by a dedicated line, and when the dedicated line fails, the network control equipment installed on the center side and the network control equipment installed on the terminal equipment side are connected. In an online network system, the network control device installed on the center side is connected to a public line using a public line, and an automatic line switching device switches from the faulty dedicated line to the public line. a dial number storage means for storing the dial number of the network control device on the terminal device side; and a dial number storage means for storing the dial number of the network control device on the terminal device side; What is claimed is: 1. A dial backup device comprising: call instruction means for reading out a corresponding dial number and instructing the automatic call type network control device to make an automatic call.