JPS6093383U - Extension call current supply circuit - Google Patents

Extension call current supply circuit

Info

Publication number
JPS6093383U
JPS6093383U JP18367783U JP18367783U JPS6093383U JP S6093383 U JPS6093383 U JP S6093383U JP 18367783 U JP18367783 U JP 18367783U JP 18367783 U JP18367783 U JP 18367783U JP S6093383 U JPS6093383 U JP S6093383U
Authority
JP
Japan
Prior art keywords
supply circuit
current supply
extension call
extension
call current
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.)
Granted
Application number
JP18367783U
Other languages
Japanese (ja)
Other versions
JPH036073Y2 (en
Inventor
杉山　二三男
越智　誠治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP18367783U priority Critical patent/JPS6093383U/en
Publication of JPS6093383U publication Critical patent/JPS6093383U/en
Application granted granted Critical
Publication of JPH036073Y2 publication Critical patent/JPH036073Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (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図は従来の内線通話電流供給回路を搭載した電子ボ
タン電話装置の回路例を示したブロック図、第２図は本
考案の内線通話電流供給回路を搭載した電子ボタン電話
装置の一実施例を示したブロック図である。 １・・・主装置、２・・・内線電話機、３・・・内線通
話電流供給回路、４・・・内線通話路、５・・・通話路
切換回路、３１・・・制御回路、３２・・・トランジス
タ（スイッチ素子）、３３・・・フィルタ回路。Fig. 1 is a block diagram showing a circuit example of an electronic key telephone device equipped with a conventional extension call current supply circuit, and Fig. 2 is an example of an electronic key telephone device equipped with an extension call current supply circuit of the present invention. FIG. DESCRIPTION OF SYMBOLS 1... Main device, 2... Extension telephone, 3... Extension call current supply circuit, 4... Extension call path, 5... Call path switching circuit, 31... Control circuit, 32. ...Transistor (switch element), 33...Filter circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電子ボタン電話装置の内線電話機に内線通話路を通して
直流電流を供給する内線通話電流供給回路において、前
記直流電流をオン、オフするスイッチ素子の前段に、ノ
イズ除去及び漏話防止のフィルタ回路を挿介し、このフ
ィルタ回路を通して、前記直流電流が前記スイッチ素子
に供給されるようにしたことを特徴とする内線通話電流
供給回路。In an extension call current supply circuit that supplies direct current to an extension telephone of an electronic button telephone device through an extension call path, a filter circuit for noise removal and crosstalk prevention is inserted before a switch element that turns on and off the direct current, An extension current supply circuit characterized in that the DC current is supplied to the switch element through this filter circuit.
JP18367783U 1983-11-30 1983-11-30 Extension call current supply circuit Granted JPS6093383U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18367783U JPS6093383U (en) 1983-11-30 1983-11-30 Extension call current supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18367783U JPS6093383U (en) 1983-11-30 1983-11-30 Extension call current supply circuit

Publications (2)

Publication Number Publication Date
JPS6093383U true JPS6093383U (en) 1985-06-26
JPH036073Y2 JPH036073Y2 (en) 1991-02-15

Family

ID=30397465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18367783U Granted JPS6093383U (en) 1983-11-30 1983-11-30 Extension call current supply circuit

Country Status (1)

Country Link
JP (1) JPS6093383U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56161755A (en) * 1980-05-16 1981-12-12 Iwatsu Electric Co Ltd Power supply system for key telephone set

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56161755A (en) * 1980-05-16 1981-12-12 Iwatsu Electric Co Ltd Power supply system for key telephone set

Also Published As

Publication number Publication date
JPH036073Y2 (en) 1991-02-15

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