JPH01100555U - - Google Patents
Info
- Publication number
- JPH01100555U JPH01100555U JP19440087U JP19440087U JPH01100555U JP H01100555 U JPH01100555 U JP H01100555U JP 19440087 U JP19440087 U JP 19440087U JP 19440087 U JP19440087 U JP 19440087U JP H01100555 U JPH01100555 U JP H01100555U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- branch
- line
- branch telephone
- display device
- 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
Description
第１図はこの考案の一実施例によるブランチ電
話機使用識別表示装置を示す構成図、第２図はこ
の考案の他の実施例によるブランチ電話機使用識
別表示装置を示す構成図、第３図ａ，ｂは従来の
電話機のブランチ方式を示す図、第４図は直結式
ブランチの設置例を示す図である。
１ａ，１ｂはライン電圧変化検知部、２ａ，２
ｂは表示部、３ａ，３ｂは電話機。なお、図中、
同一符号は同一、又は相当部分を示す。
FIG. 1 is a block diagram showing a branch telephone usage identification display device according to one embodiment of the invention, FIG. 2 is a construction diagram showing a branch telephone usage identification display device according to another embodiment of the invention, and FIGS. 4b is a diagram showing a branch system of a conventional telephone set, and FIG. 4 is a diagram showing an example of installing a direct connection type branch. 1a and 1b are line voltage change detection units, 2a and 2
b is a display unit, and 3a and 3b are telephones. In addition, in the figure,
The same reference numerals indicate the same or corresponding parts.
Claims (1)
たブランチ電話機において、上記電話回線のライ
ン電圧を検出部と、この検出電圧に応じて発光表
示する表示部を設け、他側ブランチ電話機の使用
状態を識別できるようにしたことを特徴とするブ
ランチ電話機使用識別表示装置。 In a branch telephone set in which a plurality of telephones are connected to a single telephone line, a detecting unit detects the line voltage of the telephone line, and a display unit that emits light according to the detected voltage is provided to detect the usage status of the other branch telephone. An identification display device for use in a branch telephone, characterized in that it is capable of identifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19440087U JPH01100555U (en) | 1987-12-22 | 1987-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19440087U JPH01100555U (en) | 1987-12-22 | 1987-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100555U true JPH01100555U (en) | 1989-07-06 |
Family
ID=31485130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19440087U Pending JPH01100555U (en) | 1987-12-22 | 1987-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100555U (en) |
-
1987
- 1987-12-22 JP JP19440087U patent/JPH01100555U/ja active Pending
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