JPH0264262U - - Google Patents
Info
- Publication number
- JPH0264262U JPH0264262U JP14433388U JP14433388U JPH0264262U JP H0264262 U JPH0264262 U JP H0264262U JP 14433388 U JP14433388 U JP 14433388U JP 14433388 U JP14433388 U JP 14433388U JP H0264262 U JPH0264262 U JP H0264262U
- Authority
- JP
- Japan
- Prior art keywords
- fuse
- line
- telephone
- power supply
- commercial power
- 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
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案の実施例である電話機のブロ
ツク図、第２図は同電話機の外観図、第３図はこ
の考案の他の実施例である電話機のブロツク図で
ある。
８……切換スイツチ、１７，１７ａ，１７ｂ，
１７ｃ……ヒユーズ、２５……切換回路。
FIG. 1 is a block diagram of a telephone that is an embodiment of this invention, FIG. 2 is an external view of the same, and FIG. 3 is a block diagram of a telephone that is another embodiment of this invention. 8...Selector switch, 17, 17a, 17b,
17c...Fuse, 25...Switching circuit.
Claims (1)
を動作させて通話機能以外の動作をする電話機に
おいて、 商用電源に接続される線路上に過電流を遮断す
るヒユーズを接続するとともに、少なくとも１個
の予備ヒユーズを内蔵し、前記線路上に接続され
たヒユーズが切断されたとき前記予備ヒユーズを
線路上に接続する切換手段を設けたことを特徴と
する電話機。[Scope of Claim for Utility Model Registration] In a telephone that is connected to a commercial power supply and operates a microcomputer, etc. to perform operations other than telephone calls, a fuse for cutting off overcurrent is connected on the line connected to the commercial power supply, and . A telephone set comprising at least one spare fuse, and a switching means for connecting the spare fuse to the line when the fuse connected to the line is cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14433388U JPH0264262U (en) | 1988-11-04 | 1988-11-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14433388U JPH0264262U (en) | 1988-11-04 | 1988-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264262U true JPH0264262U (en) | 1990-05-15 |
Family
ID=31411954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14433388U Pending JPH0264262U (en) | 1988-11-04 | 1988-11-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04323940A (en) * | 1991-04-23 | 1992-11-13 | Hitachi Ltd | Blown fuse backup system in subscriber exchange system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213650A (en) * | 1975-07-22 | 1977-02-02 | Japan Broadcasting Corp | Multiistage change over fuse |
| JPS5422575A (en) * | 1977-07-22 | 1979-02-20 | Hitachi Ltd | Print circuit substrate |
-
1988
- 1988-11-04 JP JP14433388U patent/JPH0264262U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213650A (en) * | 1975-07-22 | 1977-02-02 | Japan Broadcasting Corp | Multiistage change over fuse |
| JPS5422575A (en) * | 1977-07-22 | 1979-02-20 | Hitachi Ltd | Print circuit substrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04323940A (en) * | 1991-04-23 | 1992-11-13 | Hitachi Ltd | Blown fuse backup system in subscriber exchange system |
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