JPH0258946A - Folding test control system for transmission line - Google Patents

Folding test control system for transmission line

Info

Publication number
JPH0258946A
JPH0258946A JP20934788A JP20934788A JPH0258946A JP H0258946 A JPH0258946 A JP H0258946A JP 20934788 A JP20934788 A JP 20934788A JP 20934788 A JP20934788 A JP 20934788A JP H0258946 A JPH0258946 A JP H0258946A
Authority
JP
Japan
Prior art keywords
transmission line
folding test
opposite
test control
bipolar violation
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
Application number
JP20934788A
Other languages
Japanese (ja)
Inventor
Yuzo Nakamura
Hajime Kawamura
Original Assignee
Nec Corp
Nec Eng 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 Nec Corp, Nec Eng Ltd filed Critical Nec Corp
Priority to JP20934788A priority Critical patent/JPH0258946A/en
Publication of JPH0258946A publication Critical patent/JPH0258946A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate necessity to use a specific test code by executing the folding test of a transmission line with a bipolar violation.
CONSTITUTION: When the bipolar violation inputted from an opposite or a host device through a transmission line 3 is detected by a bipolar violation detecting circuit 1, a switch 2 is controlled by the bipolar violation detecting circuit 1 so that the setting can be made into a broken line (b) side. Consequently, by the setting the switch 2, a signal inputted from the opposite or high order device through the transmission line 3 to the device is folded through a transmission line 4 to the opposite or high order device as it is, and the folding test from the opposite or a host device to the device is executed. Thus, without using the specific test code, the folding test of the transmission line can be executed.
COPYRIGHT: (C)1990,JPO&Japio
JP20934788A 1988-08-25 1988-08-25 Folding test control system for transmission line Pending JPH0258946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20934788A JPH0258946A (en) 1988-08-25 1988-08-25 Folding test control system for transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20934788A JPH0258946A (en) 1988-08-25 1988-08-25 Folding test control system for transmission line

Publications (1)

Publication Number Publication Date
JPH0258946A true JPH0258946A (en) 1990-02-28

Family

ID=16571449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20934788A Pending JPH0258946A (en) 1988-08-25 1988-08-25 Folding test control system for transmission line

Country Status (1)

Country Link
JP (1) JPH0258946A (en)

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