JPS6295364U - - Google Patents

Info

Publication number
JPS6295364U
JPS6295364U JP18720385U JP18720385U JPS6295364U JP S6295364 U JPS6295364 U JP S6295364U JP 18720385 U JP18720385 U JP 18720385U JP 18720385 U JP18720385 U JP 18720385U JP S6295364 U JPS6295364 U JP S6295364U
Authority
JP
Japan
Prior art keywords
station
slave station
telephone
multiple telephones
operates
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
JP18720385U
Other languages
English (en)
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 filed Critical
Priority to JP18720385U priority Critical patent/JPS6295364U/ja
Publication of JPS6295364U publication Critical patent/JPS6295364U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の実施例の親局と子局の構成
図、第2図は従来例の親局と子局の構成図である
。 1:親局、2:信号送信回路、3,8:リンガ
ー発生回路、4,9:通話路切替回路、5:無停
電電源、6:子局、7:信号受信回路、10:商
用電源、11:停電検出回路、12:通話路切替
リレー。

Claims (1)

    【実用新案登録請求の範囲】
  1. 複数電話機を具備して無停電電源で動作する親
    局と、複数電話機を具備して商用電源で動作する
    子局とを一回線有線で接続し、前記親局は電話機
    情報を送出して前記子局の複数電話機から指定す
    る電話機を呼出す通信システムにおいて、前記子
    局に停電検出回路と特定電話機を付加し、前記子
    局の停電時は前記親局から前記子局の特定電話機
    を呼出せるようにしたことを特徴とする通信シス
    テム。
JP18720385U 1985-12-06 1985-12-06 Pending JPS6295364U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18720385U JPS6295364U (ja) 1985-12-06 1985-12-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18720385U JPS6295364U (ja) 1985-12-06 1985-12-06

Publications (1)

Publication Number Publication Date
JPS6295364U true JPS6295364U (ja) 1987-06-18

Family

ID=31137464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18720385U Pending JPS6295364U (ja) 1985-12-06 1985-12-06

Country Status (1)

Country Link
JP (1) JPS6295364U (ja)

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