JPS6280454U - - Google Patents
Info
- Publication number
- JPS6280454U JPS6280454U JP17190485U JP17190485U JPS6280454U JP S6280454 U JPS6280454 U JP S6280454U JP 17190485 U JP17190485 U JP 17190485U JP 17190485 U JP17190485 U JP 17190485U JP S6280454 U JPS6280454 U JP S6280454U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- telephone
- lead wires
- hold
- tone sending
- 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
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第1図は本考案に係るヘツドセツトアダプター
Aの概略ブロツク図、第2図は着信前の詳細な回
路図、第3図は着信状態の概略回路図、第4図は
保留状態の概略回路図である。
図中主要符号、1……局線、2……電話機、3
,4,5,6……リード線、7……電話機回路網
、8……保留音送出回路、18,19……リード
線、23……クリツクアブソーバー、24……側
音防止回路、A……ヘツドセツトアダプター、L
Ka,LKb……応答キー、HKa,HKb……
保留キー、LN……ネツトワークトランス。
Fig. 1 is a schematic block diagram of the headset adapter A according to the present invention, Fig. 2 is a detailed circuit diagram before receiving a call, Fig. 3 is a schematic circuit diagram in a receiving state, and Fig. 4 is a schematic circuit diagram in a holding state. It is. Main symbols in the diagram: 1... Office line, 2... Telephone, 3
, 4, 5, 6...Lead wire, 7...Telephone circuit network, 8...Hold tone sending circuit, 18, 19...Lead wire, 23...Click absorber, 24...Side sound prevention circuit, A... …Head set adapter, L
Ka, LKb...Response key, HKa, HKb...
Hold key, LN...Network transformer.
Claims (1)
3,4とヘツドセツトアダプターAのリード線5
,6とを応答キーLKa,LKbを介して接続し
、リード線5,6へ電話機回路網7を直列に接続
すると共に、電話機回路網7入口部のリード線5
にリード線18,19で保留音送出回路8を接続
し、電話機回路網7中にバリスターV1,V2,
V3等から成るクリツクアブソーバー23、ネツ
トワークトランスLNと抵抗R2,R3,R4,
R6,R7等から成る側音防止回路24、受話機
Rに対して直流カツトを行うコンデンサC2を組
込み、かつ、保留音送出回路8の接続入口部に保
留キーHKa、HKbを接続し、保留音送出回路
8にメロデイ発生用アイシーICを組込んだこと
を特徴とする電話応答用ヘツドセツトアダプター
。 Lead wires 3, 4 connecting the two central office lines 1, 1 and telephone 2, and lead wire 5 of head set adapter A
, 6 are connected via response keys LKa and LKb, and the telephone circuit network 7 is connected in series to the lead wires 5 and 6.
The hold tone sending circuit 8 is connected to the lead wires 18 and 19, and the varistors V 1 , V 2 ,
A click absorber 23 consisting of V 3 , etc., a network transformer LN and resistors R 2 , R 3 , R 4 ,
A sidetone prevention circuit 24 consisting of R6 , R7, etc., a capacitor C2 for cutting DC to the receiver R is incorporated, and hold keys HKa and HKb are connected to the connection inlet of the hold tone sending circuit 8. , a head set adapter for telephone answering, characterized in that a melody generation IC IC is incorporated in the hold tone sending circuit 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17190485U JPS6280454U (en) | 1985-11-08 | 1985-11-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17190485U JPS6280454U (en) | 1985-11-08 | 1985-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6280454U true JPS6280454U (en) | 1987-05-22 |
Family
ID=31107962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17190485U Pending JPS6280454U (en) | 1985-11-08 | 1985-11-08 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6280454U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5748757B2 (en) * | 1974-05-15 | 1982-10-18 |
-
1985
- 1985-11-08 JP JP17190485U patent/JPS6280454U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5748757B2 (en) * | 1974-05-15 | 1982-10-18 |
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