JPS62127187U - - Google Patents
Info
- Publication number
- JPS62127187U JPS62127187U JP1294886U JP1294886U JPS62127187U JP S62127187 U JPS62127187 U JP S62127187U JP 1294886 U JP1294886 U JP 1294886U JP 1294886 U JP1294886 U JP 1294886U JP S62127187 U JPS62127187 U JP S62127187U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- standard
- incoming call
- line
- detection circuit
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
図は本考案の実施例を示し、第１図はブロツク
図、第２図は制御状況のフローチヤートである。
１……ＳＥＸ（簡易電話交換装置）、２……電
話回線、３ａ〜３ｎ……通話線、４ａ〜４ｎ……
電話機（標準電話機）、１１……ＲＤＴ（着信検
出回路）、１３ａ〜１３ｎ……ＬＰＤ（ループ検
出回路）、１５……ＣＮＴ（制御回路）、２０…
…ＴＦＣ（通話電流供給回路）、ＬＡ〜ＬＮ……
リレー（回線リレー）、ｌａ１，ｌａ２〜ｌｎ１
，ｌｎ２……接点。
The figures show an embodiment of the present invention, with FIG. 1 being a block diagram and FIG. 2 being a flowchart of the control situation. 1...SEX (simple telephone exchange), 2...Telephone line, 3a-3n...Telephone line, 4a-4n...
Telephone (standard telephone), 11...RDT (incoming call detection circuit), 13a-13n...LPD (loop detection circuit), 15...CNT (control circuit), 20...
...TFC (Telephone current supply circuit), LA~LN...
Relay (line relay), la 1 , la 2 ~ ln 1
,ln 2 ...Contact.
Claims (1)
電話機とを収容し、該各標準電話機と対応する回
線リレーの接点を介し前記電話回線へ各標準電話
機の交換接続を行なう簡易電話交換装置において
、前記電話回線への着信を検出する着信検出回路
と、特定かつ複数の前記標準電話機を電話回線へ
主電源の停電時に接続する常時動作状態となつて
いる前記回線リレーのブレイク接点と、前記各標
準電話機の状態を各個に検出するループ検出手段
と、前記停電の回復時に前記着信検出回路の検出
々力を監視し非着信時にあらかじめ定めた優先順
位および前記ループ検出手段の検出々力に基づき
オフフツク中かつ最も高い優先順位の前記特定標
準電話機と対応する前記回線リレーのみを復旧状
態とする制御手段とを備えたことを特徴とする簡
易電話交換装置。 A simple telephone switching device accommodating a telephone line and a plurality of standard telephones connected in a star shape, and connecting each standard telephone to the telephone line via a contact point of a line relay corresponding to each standard telephone, an incoming call detection circuit that detects an incoming call to the telephone line; a break contact of the line relay that is always in operation to connect the specific and plurality of standard telephones to the telephone line in the event of a main power outage; and each of the standard telephones. Loop detection means for individually detecting the state of each telephone; and monitoring the detection power of the incoming call detection circuit when the power outage is recovered, and when there is no incoming call, the device is off-hook based on a predetermined priority order and the detection power of the loop detection circuit. and control means for bringing only the line relay corresponding to the specific standard telephone set with the highest priority into a recovery state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986012948U JPH0342790Y2 (en) | 1986-01-31 | 1986-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986012948U JPH0342790Y2 (en) | 1986-01-31 | 1986-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62127187U true JPS62127187U (en) | 1987-08-12 |
| JPH0342790Y2 JPH0342790Y2 (en) | 1991-09-06 |
Family
ID=30801553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986012948U Expired JPH0342790Y2 (en) | 1986-01-31 | 1986-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342790Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420196A (en) * | 1990-05-15 | 1992-01-23 | Matsushita Electric Works Ltd | Simplified exchanging device for household |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178456A (en) * | 1981-04-24 | 1982-11-02 | Tamura Electric Works Ltd | Key telephone set |
-
1986
- 1986-01-31 JP JP1986012948U patent/JPH0342790Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178456A (en) * | 1981-04-24 | 1982-11-02 | Tamura Electric Works Ltd | Key telephone set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420196A (en) * | 1990-05-15 | 1992-01-23 | Matsushita Electric Works Ltd | Simplified exchanging device for household |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0342790Y2 (en) | 1991-09-06 |
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