JPS6451853A - Duplicated equipment for electronic exchange - Google Patents
Duplicated equipment for electronic exchangeInfo
- Publication number
- JPS6451853A JPS6451853A JP21096487A JP21096487A JPS6451853A JP S6451853 A JPS6451853 A JP S6451853A JP 21096487 A JP21096487 A JP 21096487A JP 21096487 A JP21096487 A JP 21096487A JP S6451853 A JPS6451853 A JP S6451853A
- Authority
- JP
- Japan
- Prior art keywords
- package
- missing
- circuit
- equipment
- interface
- 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
Abstract
PURPOSE:To avoid the connection of a system with its control package lost thereto by providing a package missing detection circuit detecting a missing control circuit package and a gate circuit interrupting the sending of an act signal to a communication equipment to an interface package. CONSTITUTION:A package missing detection circuit 7 detecting the missing of the control circuit package 8 with a control circuit 9 mounted thereupon and a gate circuit 5 interrupting the sending of the act signal to the communication equipment 1 when the missing of package is detected are provided to an interface package 3 accommodating the interface circuit 4. Thus, the communication equipment receives only the act signal from the equipment switched by the command of the host device and is connected to the equipment of the switched system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21096487A JPS6451853A (en) | 1987-08-24 | 1987-08-24 | Duplicated equipment for electronic exchange |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21096487A JPS6451853A (en) | 1987-08-24 | 1987-08-24 | Duplicated equipment for electronic exchange |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6451853A true JPS6451853A (en) | 1989-02-28 |
Family
ID=16598030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21096487A Pending JPS6451853A (en) | 1987-08-24 | 1987-08-24 | Duplicated equipment for electronic exchange |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6451853A (en) |
-
1987
- 1987-08-24 JP JP21096487A patent/JPS6451853A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0128574A3 (en) | Electrical load monitoring system and method | |
EP0129794A3 (en) | Remote control system for electrical and electronic devices, especially for electronic consumer products | |
JPS5713530A (en) | Data transfer fault processing system | |
JPS6451853A (en) | Duplicated equipment for electronic exchange | |
JPS6439869A (en) | Network control unit | |
JPS5742248A (en) | Switching device for communication system | |
JPS5676826A (en) | Data transfer control system | |
JPS5624848A (en) | Communication control device | |
JPS57188192A (en) | Remote monitoring and controlling device | |
JPS5676801A (en) | Plant control device | |
JPS5441002A (en) | Data signal control system | |
JPS55123704A (en) | Maintenance device of control unit | |
JPS6481540A (en) | Reception signal switching device | |
JPS56164695A (en) | Key telephone set | |
JPS6489720A (en) | Line switching device | |
JPS5572260A (en) | Input-output device | |
JPS56134871A (en) | Data communication system | |
JPS5742212A (en) | Mic module | |
JPS642431A (en) | Voice communication equipment | |
JPS57192150A (en) | Transmission and reception circuit | |
JPS6482720A (en) | Dual system for communication line | |
JPS5786928A (en) | Fault detection system for input and output controlling operation | |
JPS56121124A (en) | Bus control system | |
JPS57206969A (en) | Fault deciding device of computer system | |
JPS5688521A (en) | Operation informing system |