JPS5595880A - Disconnection and contact test method for communication cable - Google Patents

Disconnection and contact test method for communication cable

Info

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
Application number
JP356179A
Other languages
Japanese (ja)
Other versions
JPS6140069B2 (en
Inventor
Norihiro Bessho
Kazukiyo Nakanishi
Shun Shioda
Yoshihiro Nurita
Kohei Tasumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP356179A priority Critical patent/JPS5595880A/en
Publication of JPS5595880A publication Critical patent/JPS5595880A/en
Publication of JPS6140069B2 publication Critical patent/JPS6140069B2/ja
Granted legal-status Critical Current

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
JP356179A 1979-01-16 1979-01-16 Disconnection and contact test method for communication cable Granted JPS5595880A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS6140069B2 (en) 1986-09-06

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