JPS58119252U - modem - Google Patents
modemInfo
- Publication number
- JPS58119252U JPS58119252U JP1412582U JP1412582U JPS58119252U JP S58119252 U JPS58119252 U JP S58119252U JP 1412582 U JP1412582 U JP 1412582U JP 1412582 U JP1412582 U JP 1412582U JP S58119252 U JPS58119252 U JP S58119252U
- Authority
- JP
- Japan
- Prior art keywords
- modulation
- signal
- demodulation
- passed
- switching
- 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
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Small-Scale Networks (AREA)
- Communication Control (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図は本考案の一実施例を示すブ冶ツク図、第２図は
第１図に示す信号選択部および一択スイッチの一例を示
す回路図である。
ｌａ、 ｌｂ・・・・・・端末装置、２・・・・・・
変復調装置、１１・・・・・・信号選択部、１２ａ、１
２ｂ・・・・・・コネクタ、１３・・・〜変復調部、１
４・・・・・・選択スイッチ。FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a circuit diagram showing an example of the signal selection section and selection switch shown in FIG. 1. la, lb...terminal device, 2...
Modulation/demodulation device, 11... Signal selection section, 12a, 1
2b... Connector, 13... ~Modulation/demodulation section, 1
4...Selection switch.
Claims (1)
択してデータ伝送を行う変復調装置にお′いて、複数の
端末装置と変復調部との接続方法を選択するための選択
スイッチと、この選択スイッチが切換位置にある時は切
換によって選択された端末装置から変復調部に供給され
る信号だけを通過させ、前記スイッチが分岐位置にある
時は送信要求信号を送出している端末装置から変復調部
に供給される信号だけを通過させる信号選択部を備えた
ことを特徴とする変復調装置。A selection switch for selecting a connection method between the plurality of terminal devices and the modulation/demodulation section in a modem device that selects only one of a plurality of terminal devices connected via a transmission line to transmit data; When this selection switch is in the switching position, only the signal supplied to the modulation/demodulation unit from the terminal device selected by the switching is passed through, and when the switch is in the branching position, only the signal supplied to the modulation/demodulation section from the terminal device selected by the switching is passed, and when the selection switch is in the branching position, the signal from the terminal device that is sending the transmission request signal is passed through. A modulation/demodulation device comprising a signal selection unit that passes only signals supplied to the modulation/demodulation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1412582U JPS58119252U (en) | 1982-02-05 | 1982-02-05 | modem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1412582U JPS58119252U (en) | 1982-02-05 | 1982-02-05 | modem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58119252U true JPS58119252U (en) | 1983-08-13 |
Family
ID=30026599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1412582U Pending JPS58119252U (en) | 1982-02-05 | 1982-02-05 | modem |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119252U (en) |
-
1982
- 1982-02-05 JP JP1412582U patent/JPS58119252U/en active Pending
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