FI902057A0 - Skyddssystem foer en datainformationslednings anslutningskrets. - Google Patents

Skyddssystem foer en datainformationslednings anslutningskrets.

Info

Publication number
FI902057A0
FI902057A0 FI902057A FI902057A FI902057A0 FI 902057 A0 FI902057 A0 FI 902057A0 FI 902057 A FI902057 A FI 902057A FI 902057 A FI902057 A FI 902057A FI 902057 A0 FI902057 A0 FI 902057A0
Authority
FI
Finland
Prior art keywords
skyddssystem
datainformationslednings
anslutningskrets
foer
skyddssystem foer
Prior art date
Application number
FI902057A
Other languages
English (en)
Inventor
Michael E Stibila
Original Assignee
Plessey Telecomm
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 Plessey Telecomm filed Critical Plessey Telecomm
Publication of FI902057A0 publication Critical patent/FI902057A0/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/046—Fuses formed as printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/048—Fuse resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/0039—Means for influencing the rupture process of the fusible element
    • H01H85/0073—Expansion or rupture of the insulating support for the fusible element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H05K1/0293—Individual printed conductors which are adapted for modification, e.g. fusable or breakable conductors, printed switches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0306—Inorganic insulating substrates, e.g. ceramic, glass
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • H05K1/167—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Fuses (AREA)
  • Emergency Protection Circuit Devices (AREA)
FI902057A 1989-04-25 1990-04-24 Skyddssystem foer en datainformationslednings anslutningskrets. FI902057A0 (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8909354A GB2230921B (en) 1989-04-25 1989-04-25 Protective arrangement for telecommunications line interface circuit

Publications (1)

Publication Number Publication Date
FI902057A0 true FI902057A0 (fi) 1990-04-24

Family

ID=10655650

Family Applications (1)

Application Number Title Priority Date Filing Date
FI902057A FI902057A0 (fi) 1989-04-25 1990-04-24 Skyddssystem foer en datainformationslednings anslutningskrets.

Country Status (11)

Country Link
EP (1) EP0395231B1 (fi)
JP (1) JPH0374136A (fi)
KR (1) KR900017244A (fi)
CN (1) CN1046824A (fi)
AU (1) AU623513B2 (fi)
CA (1) CA2014086A1 (fi)
DE (1) DE69024252D1 (fi)
FI (1) FI902057A0 (fi)
GB (1) GB2230921B (fi)
IE (1) IE901451L (fi)
PT (1) PT93869A (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148141A (en) * 1991-01-03 1992-09-15 Gould Inc. Fuse with thin film fusible element supported on a substrate
ES2124242T3 (es) * 1991-04-02 1999-02-01 Caddock Electronics Inc Resistencia capaz de actuar como un disyuntor de circuito.
US5361300A (en) * 1993-01-19 1994-11-01 Caddock Electronics, Inc. Balancing resistor and thermistor network for telephone circuits, and combination thereof with relay
US5481242A (en) * 1994-05-10 1996-01-02 Caddock Electronics, Inc. Debris-reducing telephone resistor combination and method
US5594407A (en) * 1994-07-12 1997-01-14 Caddock Electronics, Inc. Debris-reducing film-type resistor and method
FR2739488B1 (fr) * 1995-09-29 1997-11-07 Navarra Componentes Electro Element de coupe-circuit electrique avec resistance integree
JP2014229368A (ja) * 2013-05-20 2014-12-08 株式会社村田製作所 ヒューズ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE341746B (fi) * 1970-03-10 1972-09-18 Ericsson Telefon Ab L M
GB1466569A (en) * 1973-10-05 1977-03-09 Erie Electronics Ltd Resistors
US4494104A (en) * 1983-07-18 1985-01-15 Northern Telecom Limited Thermal Fuse
US4562509A (en) * 1984-03-05 1985-12-31 Termofrost Sweden Ab Safety switch

Also Published As

Publication number Publication date
CA2014086A1 (en) 1990-10-25
EP0395231A2 (en) 1990-10-31
AU5368990A (en) 1990-11-01
EP0395231B1 (en) 1995-12-20
GB8909354D0 (en) 1989-06-14
JPH0374136A (ja) 1991-03-28
DE69024252D1 (de) 1996-02-01
IE901451L (en) 1990-10-25
GB2230921B (en) 1994-01-05
GB2230921A (en) 1990-10-31
CN1046824A (zh) 1990-11-07
EP0395231A3 (en) 1992-02-05
PT93869A (pt) 1991-11-29
AU623513B2 (en) 1992-05-14
KR900017244A (ko) 1990-11-15

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Legal Events

Date Code Title Description
FD Application lapsed
MM Patent lapsed

Owner name: GEC PLESSEY TELECOMMUNICATIONS LIMITED