NO930785L - Alarm and proevesystem for a digital trunk line - Google Patents

Alarm and proevesystem for a digital trunk line

Info

Publication number
NO930785L
NO930785L NO93930785A NO930785A NO930785L NO 930785 L NO930785 L NO 930785L NO 93930785 A NO93930785 A NO 93930785A NO 930785 A NO930785 A NO 930785A NO 930785 L NO930785 L NO 930785L
Authority
NO
Norway
Prior art keywords
system
twisted pair
signal
ksymboler
sek
Prior art date
Application number
NO93930785A
Other languages
Norwegian (no)
Other versions
NO930785D0 (en
Inventor
David C Bliven
Anthony Vranicar
Philip B Vail
Gerald L Shimirak
Julian S Mullaney
Jan J Erreygers
Original Assignee
Raychem 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 to US57900690A priority Critical
Priority to US07/584,325 priority patent/US5111497A/en
Priority to PCT/US1991/005475 priority patent/WO1992004794A2/en
Application filed by Raychem Corp filed Critical Raychem Corp
Publication of NO930785D0 publication Critical patent/NO930785D0/en
Publication of NO930785L publication Critical patent/NO930785L/en

Links

Abstract

Et prøvesystem er knyttet til utstyr for sending og mottagning av flere telefonisk overførte signaler over et enkelt snodd par (100). A test system is connected to the equipment for transmitting and receiving multiple telephonic signals transmitted over a single twisted pair (100). Systemet omformer et analogt signal fra en lokal telefonsentral (112) til et 80 ksymboler/sek.signal for overføring over et snodd par med et linjekort (104). The system converts an analog signal from a local telephone exchange (112) to a 80 ksymboler / sek.signal for transmission over a twisted pair with a line card (104). En fjerntliggende terminal (102) omformer 80 ksymboler/sek.signaler tilbake til et vanlig analogt signal til bruk i vanlig telefon (108), faksimile eller annet beslektet utstyr. A remote terminal (102) converter 80 ksymboler / sek.signaler back to a conventional analog signal for use in conventional telephone (108), facsimile or other related equipment. Prøveutstyret prøver hver for seg hele systemet, linjekort-delen av systemet, den fjerntliggende termlnaldel av systemet og det snodde par. The testing apparatus tests individually entire system, line card section of the system, the remote termlnaldel of the system and the twisted pair. En forbedret 2-til-4-leder hybrid koblingskrets (202) er også beskrevet. An improved two-to-four-wire hybrid circuit (202) is also disclosed. Den forbedrede krets har to ekstra "side"-vikllnger knyttet til den kjente utgangstransformator der de tilføyde viklinger forbedrer signalstyrken på det mottatte signal såvel som på en effektiv måte utligner tilbakekobling fra utgangsforsterkeren. The improved circuit has two additional "side" -vikllnger associated with the prior output transformer where the added windings improves the signal strength of the received signal as well as effectively offsets feedback from the output amplifier.
NO93930785A 1990-09-04 1993-03-03 Alarm and proevesystem for a digital trunk line NO930785L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US57900690A true 1990-09-04 1990-09-04
US07/584,325 US5111497A (en) 1990-09-17 1990-09-17 Alarm and test system for a digital added main line
PCT/US1991/005475 WO1992004794A2 (en) 1990-09-04 1991-08-01 Alarm and test system for a digital main line

Publications (2)

Publication Number Publication Date
NO930785D0 NO930785D0 (en) 1993-03-03
NO930785L true NO930785L (en) 1993-04-27

Family

ID=27376783

Family Applications (1)

Application Number Title Priority Date Filing Date
NO93930785A NO930785L (en) 1990-09-04 1993-03-03 Alarm and proevesystem for a digital trunk line

Country Status (1)

Country Link
NO (1) NO930785L (en)

Also Published As

Publication number Publication date
NO930785D0 (en) 1993-03-03

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