JPH0443054U - - Google Patents
Info
- Publication number
- JPH0443054U JPH0443054U JP8317190U JP8317190U JPH0443054U JP H0443054 U JPH0443054 U JP H0443054U JP 8317190 U JP8317190 U JP 8317190U JP 8317190 U JP8317190 U JP 8317190U JP H0443054 U JPH0443054 U JP H0443054U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- terminal devices
- branch
- sufficient
- dial
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案に係るブランチ接続電話システ
ムの共鳴り防止装置の構成の一例を示す回路図、
第２図は第１図の共鳴り防止装置の外観を示す斜
視図である。
１ａ……第１主装置（コードレスホン）、１ｂ
……送受話器（コードレスホン）、２……第２主
装置（ホームテレホン）、２ａ，２ｂ，２ｃ，２
ｄ……子電話（ホームテレホン）、３……共鳴り
防止装置（４端子減衰回路）、４ａ，４ｂ，５ａ
，５ｂ……端子、７……ノツチ、Ｒ１，Ｒ２，Ｒ
３，Ｒ４……抵抗、Ｃ１，Ｃ２……コンデンサ。
FIG. 1 is a circuit diagram showing an example of the configuration of a resonance prevention device for a branch connection telephone system according to the present invention;
FIG. 2 is a perspective view showing the external appearance of the resonance prevention device shown in FIG. 1. FIG. 1a...First main device (cordless phone), 1b
...Handset (cordless phone), 2...Second main device (home telephone), 2a, 2b, 2c, 2
d... Child telephone (home telephone), 3... Resonance prevention device (4-terminal attenuation circuit), 4a, 4b, 5a
, 5b... terminal, 7... notch, R1, R2, R
3, R4...Resistor, C1, C2...Capacitor.
Claims (1)
接続されるシステムにおいて、 前記複数の末端装置のうち少なくとも１つの末
端装置の回線端子側と前記ダイヤル電話回線との
間に挿入され、前記複数の末端装置のいずれかか
ら発信されるダイヤルパルス信号のピーク・ピー
ク値をブランチ接続される他の末端装置の共鳴り
を防止するに足りると共に、所望発信先を呼び出
すに足りる所定電圧値に減衰する抵抗とコンデン
サで構成される４端子減衰回路を具備することを
特徴とするブランチ接続電話システムの共鳴り防
止装置。[Claims for Utility Model Registration] In a system in which a plurality of terminal devices are branch-connected to a dial telephone line, the system is inserted between the line terminal side of at least one terminal device among the plurality of terminal devices and the dial telephone line. A predetermined voltage that is sufficient to prevent the peak-to-peak value of the dial pulse signal transmitted from one of the plurality of terminal devices from resonance with other terminal devices that are branch-connected, and that is sufficient to call the desired destination. 1. An anti-resonance device for a branch-connected telephone system, comprising a four-terminal attenuation circuit composed of a resistor and a capacitor that attenuate to a certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8317190U JPH0443054U (en) | 1990-08-06 | 1990-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8317190U JPH0443054U (en) | 1990-08-06 | 1990-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0443054U true JPH0443054U (en) | 1992-04-13 |
Family
ID=31630613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8317190U Pending JPH0443054U (en) | 1990-08-06 | 1990-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645513U (en) * | 1992-12-03 | 1994-06-21 | 之夫 草野 | Accessories for jewelry |
-
1990
- 1990-08-06 JP JP8317190U patent/JPH0443054U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645513U (en) * | 1992-12-03 | 1994-06-21 | 之夫 草野 | Accessories for jewelry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0443054U (en) | ||
| JPH0272059U (en) | ||
| JPS5850760U (en) | automatic telephone answering device | |
| JPH0475454U (en) | ||
| JPS6066152U (en) | Many telephones with handsets | |
| JPH0379554U (en) | ||
| JPS60212055A (en) | telephone accessories | |
| JPS63106255U (en) | ||
| JPS59157374U (en) | button telephone device | |
| JPS61202551A (en) | Head set switching method | |
| JPS60134356U (en) | automatic dialing device | |
| JPH01236846A (en) | Telephone set | |
| JPS61354U (en) | On-hook dial audible display circuit | |
| JPS63212210A (en) | Automatic volume adjustment device linked to the phone | |
| JPS6347691U (en) | ||
| JPS58119257U (en) | Telephone device with attenuator | |
| JPH0297170A (en) | Facsimile | |
| JPS59159063U (en) | Telephone relay device | |
| JPS6413840U (en) | ||
| JPS61283261A (en) | Dial confirming tone circuit | |
| JPH03297252A (en) | Dialer | |
| JPS62203552U (en) | ||
| JPS6257493U (en) | ||
| JPH0272058U (en) | ||
| JPH0466858U (en) |