JPS5893061U - Intercom calling circuit - Google Patents
Intercom calling circuitInfo
- Publication number
- JPS5893061U JPS5893061U JP18762781U JP18762781U JPS5893061U JP S5893061 U JPS5893061 U JP S5893061U JP 18762781 U JP18762781 U JP 18762781U JP 18762781 U JP18762781 U JP 18762781U JP S5893061 U JPS5893061 U JP S5893061U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- calling
- conducting
- calling circuit
- intercom
- 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
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (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
第１図は従来のインターホンの呼出回路のブロック図、
第２図は本考案のインターホンの呼出回路のブロック図
、第３図は本考案のインターホンの呼出回路の実施例を
示す回路図である。
、Ｓ・・・・・・子機、Ｍ・・・・・・親機、Ａ、 Ｂ
、 Ｃ・・・・・・呼出コード、ＳＷ□・・・・・・メ
ーク式呼出スイッチ、ＳＷ２・・・・・・ブレーク式呼
出スイッチ、ＳＷ３・・・・・・ブレーク式復旧スイッ
チ、Ｒ□〜Ｒ７・・・・・・抵抗、ＴＲ□〜ＴＲ３・・
・・・・スイッチング素子（トランジスタ）、ＲＹ・・
・・・・制御素子（リレー）、ａ・・・・・・制御素子
（リレーＹ）のａ接点、ｄ・・・・・・警報入力、Ｐ・
・・・・・壁パネル、Ｃ・・・・・・反転回路、Ｈ・・
・・・・保持回路、Ｄ・・・・・・検出回路。Figure 1 is a block diagram of a conventional intercom calling circuit.
FIG. 2 is a block diagram of the intercom calling circuit of the present invention, and FIG. 3 is a circuit diagram showing an embodiment of the intercom calling circuit of the present invention. , S...Slave unit, M...Main unit, A, B
, C...Call code, SW□...Make type call switch, SW2...Break type call switch, SW3...Break type recovery switch, R□ ~R7...Resistance, TR□~TR3...
...Switching element (transistor), RY...
...Control element (relay), a...Contact a of control element (relay Y), d...Alarm input, P.
...Wall panel, C...Inversion circuit, H...
...Holding circuit, D...Detection circuit.
Claims (1)
された呼出用常閉スイッチＳＷ２と、該呼出コードおよ
び常閉スイッチの導通および不導通状態に応じてその反
転状態である不導通回路および導通回路をそれぞれ構成
する反転回路と、前記反転回路の導通回路によってトリ
ガーされる保持回路と、前記保持回路の出力を検出して
発音装置を駆動するための検出回路とを具備して（・る
ことを特徴とするインターホンの呼出回路。A normally closed calling switch SW2 connected via the calling cords A and B attached to the panel P, and a non-conducting circuit that is in an inverted state depending on the conducting or non-conducting state of the calling code and the normally closed switch. and an inverting circuit constituting a conduction circuit, a holding circuit triggered by the conduction circuit of the inverting circuit, and a detection circuit for detecting the output of the holding circuit and driving the sounding device. An intercom calling circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18762781U JPS5893061U (en) | 1981-12-16 | 1981-12-16 | Intercom calling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18762781U JPS5893061U (en) | 1981-12-16 | 1981-12-16 | Intercom calling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5893061U true JPS5893061U (en) | 1983-06-23 |
Family
ID=29990595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18762781U Pending JPS5893061U (en) | 1981-12-16 | 1981-12-16 | Intercom calling circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5893061U (en) |
-
1981
- 1981-12-16 JP JP18762781U patent/JPS5893061U/en active Pending
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