KR850006285A - Emergency trunk line change over device of electronic simple change device - Google Patents
Emergency trunk line change over device of electronic simple change device Download PDFInfo
- Publication number
- KR850006285A KR850006285A KR1019840000506A KR840000506A KR850006285A KR 850006285 A KR850006285 A KR 850006285A KR 1019840000506 A KR1019840000506 A KR 1019840000506A KR 840000506 A KR840000506 A KR 840000506A KR 850006285 A KR850006285 A KR 850006285A
- Authority
- KR
- South Korea
- Prior art keywords
- trunk line
- relay
- operates
- emergency
- change over
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1337—Operator, emergency services
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Alarm Systems (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명의 국선 전환장치의 릴레이 구동 회로도.1 is a relay drive circuit diagram of a trunk line switching device of the present invention.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019840000506A KR850006285A (en) | 1984-02-03 | 1984-02-03 | Emergency trunk line change over device of electronic simple change device |
KR2019850014123U KR860000116Y1 (en) | 1984-02-03 | 1985-10-25 | Electronic switching system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019840000506A KR850006285A (en) | 1984-02-03 | 1984-02-03 | Emergency trunk line change over device of electronic simple change device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019850014123U Division KR860000116Y1 (en) | 1984-02-03 | 1985-10-25 | Electronic switching system |
Publications (1)
Publication Number | Publication Date |
---|---|
KR850006285A true KR850006285A (en) | 1985-10-02 |
Family
ID=26627331
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019840000506A KR850006285A (en) | 1984-02-03 | 1984-02-03 | Emergency trunk line change over device of electronic simple change device |
KR2019850014123U KR860000116Y1 (en) | 1984-02-03 | 1985-10-25 | Electronic switching system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019850014123U KR860000116Y1 (en) | 1984-02-03 | 1985-10-25 | Electronic switching system |
Country Status (1)
Country | Link |
---|---|
KR (2) | KR850006285A (en) |
-
1984
- 1984-02-03 KR KR1019840000506A patent/KR850006285A/en not_active Application Discontinuation
-
1985
- 1985-10-25 KR KR2019850014123U patent/KR860000116Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR860000116Y1 (en) | 1986-02-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR880008578A (en) | How Voice Calls Work With Your Modem | |
KR880001154A (en) | Remote control system | |
KR910009554A (en) | Security device of elevator | |
KR860002870A (en) | Integrated circuit devices | |
KR920009256A (en) | Cordless Telephone Device | |
KR910015134A (en) | Cordless Telephone Device | |
KR880001131A (en) | Output buffer circuit | |
KR850006285A (en) | Emergency trunk line change over device of electronic simple change device | |
KR850006284A (en) | Multi-Frequency Dial Long Distance Call Restrictor with Electronic Simple Switching System | |
KR960020191A (en) | Digital Matching Device Accepted Analog Matching Device | |
KR850006282A (en) | Complex Frequency Reduction Dial and Redial Device of Electronic Simple Switching System | |
KR920007407A (en) | Caller's telephone number display circuit of telephone | |
KR900016930A (en) | Alarm device using wireless call function of telephone communication network | |
KR920014124A (en) | Text Communication of Telephones | |
KR870002712A (en) | A conversation phone | |
KR950026137A (en) | Portable terminal with intercom function | |
KR880008130A (en) | Videotex terminal device | |
KR900004153A (en) | Terminal remote control method using electronic exchange | |
KR880014763A (en) | How to save talk time on your phone | |
KR880005769A (en) | Outgoing control of telephone | |
KR910013811A (en) | Caller ID display for phones | |
KR890011332A (en) | Classification Telephone Service Method | |
KR880014770A (en) | Response method using voice chip | |
KR930009295A (en) | Calling device using dial button of telephone | |
KR870003637A (en) | Tone / pulse dialing circuit for cordless telephones |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E902 | Notification of reason for refusal | ||
WICV | Withdrawal of application forming a basis of a converted application |