JPS5595880A - Disconnection and contact test method for communication cable - Google Patents
Disconnection and contact test method for communication cableInfo
- Publication number
- JPS5595880A JPS5595880A JP356179A JP356179A JPS5595880A JP S5595880 A JPS5595880 A JP S5595880A JP 356179 A JP356179 A JP 356179A JP 356179 A JP356179 A JP 356179A JP S5595880 A JPS5595880 A JP S5595880A
- Authority
- JP
- Japan
- Prior art keywords
- disconnection
- voltage
- contact
- pulse
- communication cable
- 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
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
PURPOSE: To realize the simultaneous performance of the test for both the disconnection and the contact of the communication cable, by applying the pulse to the artificial circuit network of the tested core and the cable and then giving observation to the response waveform.
CONSTITUTION: Disconnection/contact simultaneous test unit 2 is connected to tested core 11 of multipair communication cable 1. In unit 2 the pulse is introduced to hybrid transformer 22 from pulse generator 21, and unbalanced voltage 22' is extracted to the time of artificial circuit network 23 which can be controlled in accordance with the length of core 11 and cable 1 each. Voltage 22' features waveforms 32 and 33 with existence of the disconnection and the contact respectively in case the input pulse features waveform 31. Here time axis setting part 24 is made to pass through control enable gate 25 via voltage 22' and then gives the simultaneous and instantaneous decision to the presence or absence of the disconnection and the contact through voltage comparison part 26 with the set voltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP356179A JPS5595880A (en) | 1979-01-16 | 1979-01-16 | Disconnection and contact test method for communication cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP356179A JPS5595880A (en) | 1979-01-16 | 1979-01-16 | Disconnection and contact test method for communication cable |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5595880A true JPS5595880A (en) | 1980-07-21 |
JPS6140069B2 JPS6140069B2 (en) | 1986-09-06 |
Family
ID=11560828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP356179A Granted JPS5595880A (en) | 1979-01-16 | 1979-01-16 | Disconnection and contact test method for communication cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595880A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5036472A (en) * | 1988-12-08 | 1991-07-30 | Hallmark Cards, Inc. | Computer controlled machine for vending personalized products or the like |
-
1979
- 1979-01-16 JP JP356179A patent/JPS5595880A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6140069B2 (en) | 1986-09-06 |
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