JPH0455858U - - Google Patents
Info
- Publication number
- JPH0455858U JPH0455858U JP9822890U JP9822890U JPH0455858U JP H0455858 U JPH0455858 U JP H0455858U JP 9822890 U JP9822890 U JP 9822890U JP 9822890 U JP9822890 U JP 9822890U JP H0455858 U JPH0455858 U JP H0455858U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- telephone line
- telephone
- microcomputer
- changeover switch
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Description
第１〜３図はこの考案に係る第１の実施例を示
し、第１図は回路図、第２図はフアツクス受信時
の各リレーの動作を示すタイムチヤート、第３図
イ，ロ，ハはそれぞれフアツクス送信を異なつた
方法によつた場合のタイムチヤートであり、第４
〜６図は第２の実施例、第７〜９図は第３の実施
例を示し、それぞれ第４，７図は回路図、第５，
８図は受信時のタイムチヤート、第６，９図は送
信時のタイムチヤート、第１０図は従来装置のブ
ロツク図である。
１，１０……電話回線、２……回路切換手段、
４……モデム、１２……電話機、１４……マイコ
ン、１８，２８，２９……切換スイツチ、１９，
２５，２７……バイパス線、１７，２０，２６，
３２……開閉スイツチ、２２……開閉スイツチの
制御手段。
Figures 1 to 3 show a first embodiment of this invention, with Figure 1 being a circuit diagram, Figure 2 being a time chart showing the operation of each relay when receiving a fax, and Figures 3 and 3 being a, b, and c. are time charts for different methods of fax transmission, and the fourth
Figures 6 to 6 show the second embodiment, Figures 7 to 9 show the third embodiment, Figures 4 and 7 are circuit diagrams, and Figures 5 and
FIG. 8 is a time chart during reception, FIGS. 6 and 9 are time charts during transmission, and FIG. 10 is a block diagram of a conventional device. 1, 10...Telephone line, 2...Circuit switching means,
4...Modem, 12...Telephone, 14...Microcomputer, 18, 28, 29...Switch switch, 19,
25, 27... Bypass line, 17, 20, 26,
32... Open/close switch, 22... Control means for the open/close switch.
Claims (1)
介してモデムを有した端末機と電話機とを選択的
に切換可能に接続し、かつ上記回路切換手段を制
御するマイクロコンピユータを備えた電話回線端
末機器において、電話回線を、上記切換スイツチ
を迂回して端末機側へと接続するバイパス線を設
けると共に、このバイパス線に開閉スイツチを挿
入し、かつ上記マイクロコンピユータ内には上記
開閉スイツチを制御し、少なくとも上記切換スイ
ツチのモデム側への切換動作中には開閉スイツチ
を閉成させる開閉スイツチの制御手段を設けたこ
とを特徴とする電話回線端末機器。 A telephone line terminal device that selectively connects a terminal having a modem and a telephone to a telephone line via a changeover switch in a circuit switching means, and is equipped with a microcomputer that controls the circuit switching means. A bypass line is provided for connecting the telephone line to the terminal side by bypassing the changeover switch, and an on/off switch is inserted into the bypass line, and the on/off switch is controlled in the microcomputer, A telephone line terminal device comprising an on-off switch control means for closing the on-off switch at least during switching operation of the changeover switch to the modem side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9822890U JPH0810984Y2 (en) | 1990-09-18 | 1990-09-18 | Telephone line terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9822890U JPH0810984Y2 (en) | 1990-09-18 | 1990-09-18 | Telephone line terminal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0455858U true JPH0455858U (en) | 1992-05-13 |
| JPH0810984Y2 JPH0810984Y2 (en) | 1996-03-29 |
Family
ID=31839231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9822890U Expired - Lifetime JPH0810984Y2 (en) | 1990-09-18 | 1990-09-18 | Telephone line terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810984Y2 (en) |
-
1990
- 1990-09-18 JP JP9822890U patent/JPH0810984Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810984Y2 (en) | 1996-03-29 |