JPS5816960U - Transmission failure information transmission device - Google Patents

Transmission failure information transmission device

Info

Publication number
JPS5816960U
JPS5816960U JP1981109284U JP10928481U JPS5816960U JP S5816960 U JPS5816960 U JP S5816960U JP 1981109284 U JP1981109284 U JP 1981109284U JP 10928481 U JP10928481 U JP 10928481U JP S5816960 U JPS5816960 U JP S5816960U
Authority
JP
Japan
Prior art keywords
transmission
failure information
transmission device
data
output level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1981109284U
Other languages
Japanese (ja)
Inventor
亀井　幸郎
Original Assignee
日立電子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立電子株式会社 filed Critical 日立電子株式会社
Priority to JP1981109284U priority Critical patent/JPS5816960U/en
Publication of JPS5816960U publication Critical patent/JPS5816960U/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案を適用するデータ伝送装置の基本的構成
を示すブロック図、第２図は本考案による送信故障情報
の伝送方式の一実施例を示すブロック図である。 １：親局、２：子局、３：伝送回線、４．７：データ処
理装置、５，６：変復調装置、８：トーン送信器、９：
送信レベル監視回路、１０：切替リレー。FIG. 1 is a block diagram showing the basic configuration of a data transmission device to which the present invention is applied, and FIG. 2 is a block diagram showing an embodiment of the transmission failure information transmission method according to the present invention. 1: Master station, 2: Slave station, 3: Transmission line, 4.7: Data processing device, 5, 6: Modulation/demodulation device, 8: Tone transmitter, 9:
Transmission level monitoring circuit, 10: switching relay.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 変復調装置を用いて中実装置へデータ伝送するデータ伝
送装置の子局において、前記データ伝送装置が使用して
いる周波数帯域内の回波数を発振する信号音発振器と、
送信出力レベル低下時に回線を切替る、切替リレー回路
と、送信出力レベル低下検出回路とを備え、送信レベル
低下時にトーンを送出して送信故障情報とするようにし
たことを特徴とする送信故障情報の伝送方式。　−In a slave station of a data transmission device that transmits data to a solid device using a modulation/demodulation device, a signal tone oscillator that oscillates a frequency within a frequency band used by the data transmission device;
Transmission failure information comprising a switching relay circuit that switches the line when the transmission output level drops, and a transmission output level drop detection circuit, and transmits a tone as transmission failure information when the transmission level drops. transmission method. −
JP1981109284U 1981-07-24 1981-07-24 Transmission failure information transmission device Pending JPS5816960U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981109284U JPS5816960U (en) 1981-07-24 1981-07-24 Transmission failure information transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981109284U JPS5816960U (en) 1981-07-24 1981-07-24 Transmission failure information transmission device

Publications (1)

Publication Number Publication Date
JPS5816960U true JPS5816960U (en) 1983-02-02

Family

ID=29903665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981109284U Pending JPS5816960U (en) 1981-07-24 1981-07-24 Transmission failure information transmission device

Country Status (1)

Country Link
JP (1) JPS5816960U (en)

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