IT1269224B - Collegamento ottico con rivelazione di intrusioni - Google Patents

Collegamento ottico con rivelazione di intrusioni

Info

Publication number
IT1269224B
IT1269224B ITTO920124A ITTO920124A IT1269224B IT 1269224 B IT1269224 B IT 1269224B IT TO920124 A ITTO920124 A IT TO920124A IT TO920124 A ITTO920124 A IT TO920124A IT 1269224 B IT1269224 B IT 1269224B
Authority
IT
Italy
Prior art keywords
intrusion detection
optical connection
optical
intrusion
connection
Prior art date
Application number
ITTO920124A
Other languages
English (en)
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 filed Critical
Publication of ITTO920124A0 publication Critical patent/ITTO920124A0/it
Publication of ITTO920124A1 publication Critical patent/ITTO920124A1/it
Application granted granted Critical
Publication of IT1269224B publication Critical patent/IT1269224B/it

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4469—Security aspects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Burglar Alarm Systems (AREA)
  • Cable Accessories (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Optical Couplings Of Light Guides (AREA)
ITTO920124A 1991-03-06 1992-02-18 Collegamento ottico con rivelazione di intrusioni IT1269224B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9102668A FR2739459B1 (fr) 1991-03-06 1991-03-06 Liaison optique de transmission a detection d'intrusion

Publications (3)

Publication Number Publication Date
ITTO920124A0 ITTO920124A0 (it) 1992-02-18
ITTO920124A1 ITTO920124A1 (it) 1993-08-18
IT1269224B true IT1269224B (it) 1997-03-21

Family

ID=9410393

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920124A IT1269224B (it) 1991-03-06 1992-02-18 Collegamento ottico con rivelazione di intrusioni

Country Status (5)

Country Link
DE (1) DE4206802A1 (it)
ES (1) ES2102286B1 (it)
FR (1) FR2739459B1 (it)
GB (1) GB2466783B (it)
IT (1) IT1269224B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050244116A1 (en) * 2004-04-28 2005-11-03 Evans Alan F Cables and cable installations
CN101095072B (zh) * 2004-11-03 2010-10-27 Adc电信公司 光纤投落终端
CN105068203B (zh) * 2015-08-17 2018-11-23 江苏亨通光电股份有限公司 一种防窃听光纤光缆、防窃听方法及光缆制造方法
CN115051750B (zh) * 2022-04-27 2024-05-24 安徽理工大学 一种野外传感光纤的智能监测保护系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000416A (en) * 1975-07-11 1976-12-28 International Telephone And Telegraph Corporation Multi-core optical communications fiber
US4174149A (en) * 1976-08-19 1979-11-13 The United States Of America As Represented By The Secretary Of The Army Secure fiber optics communication system
US4217488A (en) * 1977-01-21 1980-08-12 Bell Telephone Laboratories, Incorporated Secure optical communication components, method, and system
US4436368A (en) * 1977-06-06 1984-03-13 Corning Glass Works Multiple core optical waveguide for secure transmission
EP0006364B1 (en) * 1978-06-20 1983-08-17 BICC Public Limited Company An improved optical cable
DE2931534A1 (de) * 1979-08-03 1981-02-19 Messerschmitt Boelkow Blohm Einrichtung zur ueberwachung von signaluebertragungsleitungen
DE3338232A1 (de) * 1983-08-10 1985-03-28 Gebatec Geräte- und Bauelemente-Technik GmbH, 3554 Gladenbach Elektrisches kabel
US4729627A (en) * 1983-08-15 1988-03-08 Sumitomo Electric Industries, Ltd. Optical fiber cable for detecting low temperature
GB8709900D0 (en) * 1987-04-27 1987-08-05 British Telecomm Surveillance system
FR2637432B1 (fr) * 1988-10-03 1990-11-30 Telecommunications Sa Systeme de surveillance de liaisons a fibre optique

Also Published As

Publication number Publication date
ITTO920124A1 (it) 1993-08-18
FR2739459A1 (fr) 1997-04-04
DE4206802A1 (de) 1997-05-28
GB2466783B (en) 2010-11-24
ES2102286A1 (es) 1997-07-16
FR2739459B1 (fr) 1998-01-30
GB9204635D0 (en) 2010-02-10
ES2102286B1 (es) 1998-02-16
ITTO920124A0 (it) 1992-02-18
GB2466783A (en) 2010-07-14

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970131