JPH01122637U - - Google Patents

Info

Publication number
JPH01122637U
JPH01122637U JP1988018746U JP1874688U JPH01122637U JP H01122637 U JPH01122637 U JP H01122637U JP 1988018746 U JP1988018746 U JP 1988018746U JP 1874688 U JP1874688 U JP 1874688U JP H01122637 U JPH01122637 U JP H01122637U
Authority
JP
Japan
Prior art keywords
line
transmission line
wire audio
side transmission
transmitting
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
JP1988018746U
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 JP1988018746U priority Critical patent/JPH01122637U/ja
Publication of JPH01122637U publication Critical patent/JPH01122637U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Description

【図面の簡単な説明】
図は本考案の実施例を示すブロツク図である。 1,2……搬送端局、3……4線式音声回線、
6……制御装置、7……被制御装置、8,13…
…制御回路、9……発振器、10……レベル計、
11……送信回路、12……受信回路、rl
rl11……リレー接点。

Claims (1)

    【実用新案登録請求の範囲】
  1. 4線式音声回線の信号伝送路へ制御信号を送信
    しかつ前記4線式音声回線の送信側伝送路および
    受信側伝送路を試験器側へ接続する前記4線式音
    声回線の一端に設けた制御装置と、前記制御信号
    の受信に応じ前記4線式音声回線の受信側伝送路
    と送信側伝送路とを折返し接続する前記4線式音
    声回線の他端に設けた被制御装置とを備えたこと
    を特徴とする音声回線折返し試験装置。
JP1988018746U 1988-02-17 1988-02-17 Pending JPH01122637U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988018746U JPH01122637U (ja) 1988-02-17 1988-02-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988018746U JPH01122637U (ja) 1988-02-17 1988-02-17

Publications (1)

Publication Number Publication Date
JPH01122637U true JPH01122637U (ja) 1989-08-21

Family

ID=31233658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988018746U Pending JPH01122637U (ja) 1988-02-17 1988-02-17

Country Status (1)

Country Link
JP (1) JPH01122637U (ja)

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