JPS6385938U - - Google Patents

Info

Publication number
JPS6385938U
JPS6385938U JP18134986U JP18134986U JPS6385938U JP S6385938 U JPS6385938 U JP S6385938U JP 18134986 U JP18134986 U JP 18134986U JP 18134986 U JP18134986 U JP 18134986U JP S6385938 U JPS6385938 U JP S6385938U
Authority
JP
Japan
Prior art keywords
telephone
terminal
door intercom
doorbell
wave rectifier
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
JP18134986U
Other languages
Japanese (ja)
Other versions
JPH0741234Y2 (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 JP1986181349U priority Critical patent/JPH0741234Y2/en
Publication of JPS6385938U publication Critical patent/JPS6385938U/ja
Application granted granted Critical
Publication of JPH0741234Y2 publication Critical patent/JPH0741234Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Description

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

第１図は本考案の実施例１の回路図、第２図は
本考案の実施例２の回路図である。 １……電話機、２ａ，２ｂ……端子、３……電
話回線、４ａ，４ｂ……端子、５……ドアホン接
続回路、６ａ，６ｂ……接続端子、７……全波整
流回路、８……ドアホンである。 FIG. 1 is a circuit diagram of a first embodiment of the present invention, and FIG. 2 is a circuit diagram of a second embodiment of the present invention. 1... Telephone, 2a, 2b... Terminal, 3... Telephone line, 4a, 4b... Terminal, 5... Door phone connection circuit, 6a, 6b... Connection terminal, 7... Full wave rectifier circuit, 8... ...It's a doorbell.

Claims (1)

【実用新案登録請求の範囲】 (1) 電話回線、電話機、ドアホンを夫々接続す
る端子を設け、切換手段により電話機をドアホン
又は電話回線に切換接続するとともにドアホンへ
直流バイアス電圧を接続端子を介して印加する電
話機用ドアホン接続回路において、ドアホンと、
ドアホンを接続する端子との間に該端子側を入力
端とする全波整流回路を接続し、全波整流回路の
出力端をドアホン接続端子としたことを特徴とす
る電話機用ドアホン接続回路。 (2) 全波整流回路としてダイオードブリツジを
用いたことを特徴とする実用新案登録請求の範囲
第１項記載の電話機用ドアホン接続回路。[Scope of Claim for Utility Model Registration] (1) A terminal for connecting a telephone line, a telephone set, and a doorbell is provided, and a switching means is used to switch and connect the telephone to the doorbell or the telephone line, and a DC bias voltage is applied to the doorbell via the connecting terminal. In the doorphone connection circuit for the telephone to which the voltage is applied, the doorphone and
A door intercom connection circuit for a telephone, characterized in that a full wave rectifier circuit with the terminal side as an input terminal is connected between a terminal for connecting a door intercom, and an output end of the full wave rectifier circuit is used as a door intercom connection terminal. (2) The door intercom connection circuit for a telephone according to claim 1, which is characterized in that a diode bridge is used as the full-wave rectifier circuit.
JP1986181349U 1986-11-26 1986-11-26 Doorphone connection circuit for telephone Expired - Lifetime JPH0741234Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986181349U JPH0741234Y2 (en) 1986-11-26 1986-11-26 Doorphone connection circuit for telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986181349U JPH0741234Y2 (en) 1986-11-26 1986-11-26 Doorphone connection circuit for telephone

Publications (2)

Publication Number Publication Date
JPS6385938U true JPS6385938U (en) 1988-06-04
JPH0741234Y2 JPH0741234Y2 (en) 1995-09-20

Family

ID=31126139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986181349U Expired - Lifetime JPH0741234Y2 (en) 1986-11-26 1986-11-26 Doorphone connection circuit for telephone

Country Status (1)

Country Link
JP (1) JPH0741234Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114299677A (en) * 2020-10-08 2022-04-08 和硕联合科技股份有限公司 Doorbell control circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133736A (en) * 1983-01-20 1984-08-01 Ricoh Co Ltd Signal input and output device
JPS61212953A (en) * 1985-03-18 1986-09-20 Matsushita Electric Ind Co Ltd Telephone set with doorphone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133736A (en) * 1983-01-20 1984-08-01 Ricoh Co Ltd Signal input and output device
JPS61212953A (en) * 1985-03-18 1986-09-20 Matsushita Electric Ind Co Ltd Telephone set with doorphone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114299677A (en) * 2020-10-08 2022-04-08 和硕联合科技股份有限公司 Doorbell control circuit
CN114299677B (en) * 2020-10-08 2023-12-15 和硕联合科技股份有限公司 Doorbell control circuit

Also Published As

Publication number Publication date
JPH0741234Y2 (en) 1995-09-20

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