DE3890881T1 - TEST UNIT FOR TESTING TELEPHONE LINES - Google Patents

TEST UNIT FOR TESTING TELEPHONE LINES

Info

Publication number
DE3890881T1
DE3890881T1 DE19883890881 DE3890881T DE3890881T1 DE 3890881 T1 DE3890881 T1 DE 3890881T1 DE 19883890881 DE19883890881 DE 19883890881 DE 3890881 T DE3890881 T DE 3890881T DE 3890881 T1 DE3890881 T1 DE 3890881T1
Authority
DE
Germany
Prior art keywords
test unit
telephone lines
testing telephone
testing
lines
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.)
Withdrawn
Application number
DE19883890881
Other languages
German (de)
Inventor
Aaron Chan
Ben Pierce
Leslie Shafto
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.)
Harris Corp
Original Assignee
Harris Corp
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
Priority claimed from US07/109,164 external-priority patent/US4841560A/en
Application filed by Harris Corp filed Critical Harris Corp
Publication of DE3890881T1 publication Critical patent/DE3890881T1/en
Withdrawn legal-status Critical Current

Links

DE19883890881 1987-10-16 1988-10-07 TEST UNIT FOR TESTING TELEPHONE LINES Withdrawn DE3890881T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/109,164 US4841560A (en) 1987-10-16 1987-10-16 Direct access test unit for central office
PCT/US1988/003445 WO1989003622A1 (en) 1987-10-16 1988-10-07 Direct access test unit for central office

Publications (1)

Publication Number Publication Date
DE3890881T1 true DE3890881T1 (en) 1989-12-21

Family

ID=26777878

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883890881 Withdrawn DE3890881T1 (en) 1987-10-16 1988-10-07 TEST UNIT FOR TESTING TELEPHONE LINES

Country Status (1)

Country Link
DE (1) DE3890881T1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512787C1 (en) * 1985-04-10 1986-08-21 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method for testing telephone sets, routes and parts of the control of telephone switching systems, in particular telephone private branch exchanges
US4639557A (en) * 1985-09-27 1987-01-27 Communications Technology Corporation Remote testing system for electrical circuits
US4670898A (en) * 1986-01-03 1987-06-02 Harris Corporation Direct access test unit for central office

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512787C1 (en) * 1985-04-10 1986-08-21 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method for testing telephone sets, routes and parts of the control of telephone switching systems, in particular telephone private branch exchanges
US4639557A (en) * 1985-09-27 1987-01-27 Communications Technology Corporation Remote testing system for electrical circuits
US4670898A (en) * 1986-01-03 1987-06-02 Harris Corporation Direct access test unit for central office

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
telcom report 4 (1981) Beiheft "Digital- vermittlungssysteme" EWSD", S. 49-55 *

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal