JPS5859286U

JPS5859286U - Data compensation circuit for time division multiplex transmission system during power outage

Info

Publication number: JPS5859286U
Application number: JP15347281U
Authority: JP
Inventors: 雅一福永; 秋葉　修
Original assignee: 松下電工株式会社
Priority date: 1981-10-15
Filing date: 1981-10-15
Publication date: 1983-04-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の時分割多重伝送システムのブロック回路
図、第２図ａ　”　ｃは同上の伝送信号波形図、第３図
は同上の端末器のブロック回路図、第４図は同上の端末
器の電源回路図、第５図は同上の中央制御監視装置のブ
ロック回路図、第６図は本考案の一実施例のブロック回
路図、第７図は同上のモニタ一端末器のブロック回路図
、第８図は同上の信号電圧ダウン検知回路の動作説明図
である。１・・・中央制御監視装置、２・・・端末器、２ａ・・
・停電時データ補償の必要がない端末器、２ｂ・・・停
電時データ補償の必要がある端末器、３，３ａ・・・信
号線、４・・・モニタ一端末器。Fig. 1 is a block circuit diagram of a conventional time division multiplex transmission system, Fig. 2 a `` c is a transmission signal waveform diagram of the above, Fig. 3 is a block circuit diagram of the same terminal, and Fig. 4 is a block circuit diagram of the same terminal. 5 is a block circuit diagram of the central control and monitoring device of the same device, FIG. 6 is a block circuit diagram of an embodiment of the present invention, and FIG. 7 is a block circuit diagram of the monitor-terminal device of the same device. , FIG. 8 is an explanatory diagram of the operation of the signal voltage down detection circuit as described above. 1... Central control monitoring device, 2... Terminal device, 2a...
・Terminal device that does not require data compensation during power outage, 2b...Terminal device that requires data compensation during power outage, 3, 3a... Signal line, 4... Monitor-terminal device.

Claims

[Scope of utility model registration request]

Connect the central control monitoring device and multiple terminal devices with signal lines,
In a time-division multiplex transmission system in which a central control monitoring device cyclically calls any terminal device and transmits and receives data, and the power supply to each terminal device is supplied from the central monitoring control device, one monitor and one terminal device are provided. A terminal device that does not require data compensation in the event of a power outage is connected to the rear stage of the monitor-terminal device, and a terminal device that requires data compensation in the event of a power outage is connected to the front stage of the monitor-terminal device, so that the power supply voltage drops. A power outage data compensation circuit for a time division multiplex transmission system which disconnects signal lines connecting terminal devices that do not require data compensation in the event of a power outage and also compensates for data in terminal devices that require data compensation in the event of a power outage. .