JPS56140745A - Forming method of circuit test system - Google Patents
Forming method of circuit test systemInfo
- Publication number
- JPS56140745A JPS56140745A JP4419680A JP4419680A JPS56140745A JP S56140745 A JPS56140745 A JP S56140745A JP 4419680 A JP4419680 A JP 4419680A JP 4419680 A JP4419680 A JP 4419680A JP S56140745 A JPS56140745 A JP S56140745A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- teleprinter
- circuit test
- board
- test system
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Abstract
PURPOSE:To improve the economic property without impairing the benefit of operation, by storing a tie circuit into the circuit test system comprising plural circuit test boards and then connecting exclusively the teleprinter of each circuit test board to the tie circuit. CONSTITUTION:A tie circuit 8 is stored in the circuit test system 3' comprising the circuit test boards 4-1-4-n. The teleprinter 5-1 incorporated in the prescribed test board 4-1 is switched to be connected to the circuit 8 at all times in case the teleprinter 5-1 is not connected to the board 4-1 in order to prepare for the connection given from the subscriber telegraph switchboard 1. Thus a connection is inhibited for other teleprinters 5-2-5-n. Either one of the teleprinters 5-2-5-n can be connected exclusively to the circuit 8 while the teleprinter 5-1 is connected to the board 4-1. In case no connection is given to any teleprinter, the circuit 8 is connected to the block signal transmitting circuit. Thus the circuit 8 is blocked.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4419680A JPS56140745A (en) | 1980-04-04 | 1980-04-04 | Forming method of circuit test system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4419680A JPS56140745A (en) | 1980-04-04 | 1980-04-04 | Forming method of circuit test system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56140745A true JPS56140745A (en) | 1981-11-04 |
Family
ID=12684814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4419680A Pending JPS56140745A (en) | 1980-04-04 | 1980-04-04 | Forming method of circuit test system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56140745A (en) |
-
1980
- 1980-04-04 JP JP4419680A patent/JPS56140745A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2185658B (en) | Data transmission equipment | |
IT1215490B (en) | METHOD OF ATTENUATION OF THE ECHO SIGNAL IN CONVERSION CIRCUITS, SO CALLED BY TELEPHONE FORKS, INTENDED FOR TELEPHONE CONFERENCES, AND EQUIPMENT OPERATING ACCORDING TO SUCH METHOD. | |
JPS5792948A (en) | Loop data transmission system | |
JPS5745769A (en) | Control signal system for subscriber terminal connection | |
JPS56140745A (en) | Forming method of circuit test system | |
JPS5439510A (en) | Detection circuit for outgoing call | |
JPS55145455A (en) | Backup system for center device | |
JPS56132843A (en) | Subscriber's line signal system | |
JPS5781758A (en) | Signal transmitting system of switchboard | |
JPS5686596A (en) | Transfer system of dial information | |
JPS5476032A (en) | Communication control system | |
JPS5412235A (en) | Connection switching unit of data terminal system | |
JPS54134526A (en) | Terminal equipment | |
JPS5294721A (en) | Information processing system using tv communication system | |
JPS57162023A (en) | Communication control system | |
JPS5553959A (en) | False calling device | |
JPS54102810A (en) | Selection system for representative subscriber | |
JPS5648742A (en) | Multipoint system | |
JPS53128912A (en) | Data transmission system | |
JPS55112064A (en) | Jumper checking system for large number of subscribers | |
JPS56160168A (en) | Exchange system | |
JPS5533330A (en) | Load generation system to data exchange network by multiple connection of subscriber circuit | |
JPS5525249A (en) | Special number exchange system | |
JPS52139304A (en) | Reservation system for key telephone equipment | |
JPS6462941A (en) | Line terminator for digital data communication |