DE4441599C1 - Optical fibre identification device - Google Patents
Optical fibre identification deviceInfo
- Publication number
- DE4441599C1 DE4441599C1 DE4441599A DE4441599A DE4441599C1 DE 4441599 C1 DE4441599 C1 DE 4441599C1 DE 4441599 A DE4441599 A DE 4441599A DE 4441599 A DE4441599 A DE 4441599A DE 4441599 C1 DE4441599 C1 DE 4441599C1
- Authority
- DE
- Germany
- Prior art keywords
- fiber
- cable
- light source
- fibers
- optical fibre
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
-
- 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
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4482—Code or colour marking
-
- 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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/562—Processes for repairing optical cables locatable, e.g. using magnetic means
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Identifikation der Fasern eines Lichtwellenleiterkabels.The invention relates to a device for identifying the Fibers of an optical fiber cable.
Eine derartige Vorrichtung ist aus der DE 38 12 143 A1 bekannt.Such a device is known from DE 38 12 143 A1.
Beim Zusammenfügen (Spleißen im Lichtbogen) von mehreren Glasfasern (z. B. 12 oder mehr) mit einem weiteren Lichtwellenleiter- (LWL-)Kabel oder dem Anschluß eines LWL-Kabels an mit optischen Steckverbindern versehene Anschluß-Fasern, sogenannte "pigtails", ist eine spätere Zuordnung der Fasern z. B. zu der Reihenfolge der Fasern in dem ersten LWL-Kabel sehr schwer möglich, da die eigentliche Glas faser mit einem Außendurchmesser von 0,125 mm nur noch mit einem so genannten Sekundär-Coating aus einer Plastikmasse überzogen ist und der Durchmesser dann 0,9 mm beträgt. Das Einfärben dieses Sekundär-Coatin ist aufgrund der geringen Materialdicke nicht sehr wirkungsvoll und die Farben erscheinen schwach, so daß eine Identifikation der einzelnen Fasern nahezu unmöglich ist.When joining (splicing in the arc) of several glass fibers (e.g. 12 or more) with another fiber optic (Fiber optic) cable or the connection of a fiber optic cable to with optical Connectors provided connector fibers, so-called "pigtails" a later assignment of the fibers z. B. the order of the fibers in the first fiber optic cable very difficult because the actual glass fiber with an outer diameter of 0.125 mm only with such called secondary coating is coated from a plastic mass and the Then diameter is 0.9 mm. The coloring this secondary coating is not due to the low material thickness very effective and the colors appear faint, so that one Identification of the individual fibers is almost impossible.
In der bisherigen Praxis erreicht man eine Zuordnung dadurch, daß beim Abschluß der Anschlußarbeiten ein Monteur nacheinander die einzelnen Fasern mit einer Lichtquelle durchleuchtet und am Ende des Kabels oder der Pigtails ein zweiter Monteur das jeweils durchleuchtete Kabel er kennt, wobei er durch eine Sprechverbindung mit dem Monteur, der die Fasern nacheinander durchleuchtet, verbunden sein muß.In previous practice, an assignment is achieved in that Completion of the connection work one installer one after the other Fibers illuminated with a light source and at the end of the cable or the pigtails a second fitter the cable that is always illuminated knows, through a speech connection with the fitter who the Fibers are sequentially examined, must be connected.
Diesen Stand der Technik beschreibt u. a. die Offenlegungsschrift DE 38 12 143 A1, bei der die Lichtwellenleiter an zwei Kabelenden in einer frei gewählten Konfiguration einzeln zugänglich angeordnet werden. Anschließend wird an einem Kabelende ein Lichtsender an einen der Lichtwellenleiter angekoppelt und am anderen Kabelende ein Licht empfänger nacheinander an so viele einzelne Lichtwellenleiter ange schlossen, bis ein Empfangssignal festgestellt wird. Die Lage des so jeweils festgestellten Lichtwellenleiters innerhalb der Kabelkonfi guration wird dann festgehalten.This state of the art describes u. a. the disclosure DE 38 12 143 A1, in which the optical fibers at two cable ends in can be arranged individually accessible in a freely selected configuration. Then a light transmitter is connected to one of the ends of the cable Optical fiber coupled and a light at the other end of the cable consecutively attached to so many individual optical fibers closed until a received signal is detected. The location of the sun each determined optical fiber within the cable confi guration is then recorded.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung nach dem Oberbegriff des Anspruchs 1 zu schaffen, die eine möglichst wenig zeitaufwendige Identifikation der Fasern des Lichtwellenleiterkabels ermöglicht.The invention has for its object a Device according to the preamble of claim 1 to create the least time consuming Identification of the fibers of the optical fiber cable enables.
Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This task is characterized by the in the Part of claim 1 specified features solved.
Ein Ausführungsbeispiel der Erfindung wird anhand der Skizze nach Fig. 1 näher erläutert:An embodiment of the invention is explained in more detail with reference to the sketch according to FIG. 1:
In einer Mehrfach-Lichtquelle L.Q. speist ein Quarzoszillator eine Reihe von 12 Lichtquellen D₁ bis D₁₂, z. B. 12 Leuchtdioden LED's mit einer Emission im Wellenlängen-Bereich zwischen Rot und der Grenze zu Infrarot, mit diskreten Taktfrequenzen f₁ bis f₁₂ im Bereich von 2731 bis 64 Hz, die dann von den Leuchtdioden über optische Steckverbinder 1S bis 12S als getaktetes Licht ausgesendet werden.In a multiple light source L.Q. a quartz oscillator feeds one Row of 12 light sources D₁ to D₁₂, z. B. 12 light emitting diodes with an emission in the wavelength range between Red and the border with infrared, with discrete clock frequencies f₁ to f₁₂ in the range from 2731 to 64 Hz, the then from the LEDs via optical connectors 1S to 12S as clocked light can be emitted.
Den Taktfrequenzen sind durch eine Referenztabelle die Ordnungszahlen von 1 . . . 12 für die LWL-Fasern zugeteilt (2731 Hz = 1. Faser, 64 Hz = 12. Faser). The clock frequencies are the ordinal numbers through a reference table from 1 . . . 12 allocated for the fiber optic fibers (2731 Hz = 1st fiber, 64 Hz = 12.Fiber).
Am einen Ende KE1 des zu identifizierenden Kabels wird jede Faser mit einer der Lichtquellen von 1-12 verbunden, so daß die Fasern beliebig die Reihenfolge 1-12 erhalten.At one end KE1 of the cable to be identified, each fiber is included one of the light sources connected from 1-12 so that the fibers receive any order 1-12.
Am anderen Ende des Kabels KE2 wird eine beliebige Faser genommen und mit dem Frequenzzähler FZ verbunden. Die auf dem Zähler erscheinende Zahl gestattet über die Referenztabelle die direkte Zuordnung des unter suchten Kabels. (Die angezeigte Zahl 1365 in Fig. 1 entspricht der Faser 3.) Nacheinander wird so jede Faser ausgemessen und nach der Messung entweder mit einer Faser-Kennzeichnung versehen oder in die zu der Faser gehörende Kupplung eines sogenannten Rangier- oder Patchfeldes gesteckt.Any fiber is taken at the other end of the cable KE2 and connected to the frequency counter FZ. The number that appears on the meter allows the cable under investigation to be assigned directly via the reference table. (The number 1365 shown in FIG. 1 corresponds to fiber 3. ) Each fiber is measured in succession and after the measurement either provided with a fiber identification or inserted into the coupling belonging to the fiber of a so-called patching or patch panel.
Die Identifizierung z. B. eines 12fach-Kabels ist somit nur noch durch einen Techniker, der nach dem Aufstecken der Fasern auf die Lichtquellen zum anderen Kabelende geht und die Fasern ausmißt, mit einem Minimum an Zeitaufwand geschehen.The identification z. B. a 12-way cable is thus only through a technician who, after attaching the fibers to the light sources goes to the other end of the cable and measures the fibers, with one Minimum of time spent happening.
Werden z. B. beide Enden eines LWL-Kabels mit Pigtails versehen, können die zuerst angeschlossenen Pigtails auf die Lichtquellen gesteckt werden, und der Monteur erkennt sofort am anderen Ende des Kabels an den leuchtenden Stirnflächen der Glasfasern, daß alle Fasern optischen Durchgang haben.Are z. B. can provide both ends of a fiber optic cable with pigtails put the pigtails first connected to the light sources and the installer immediately recognizes the other end of the cable the shining end faces of the glass fibers that all fibers optical To have continuity.
Nach dem Anschluß der Pigtails werden diese wiederum ausgemessen, und die Zuordnung zur Reihenfolge der Fasern am ersten Kabelende ist gewährleistet.After connecting the pigtails these are measured again and the assignment to The order of the fibers at the first end of the cable is guaranteed.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4441599A DE4441599C1 (en) | 1994-11-23 | 1994-11-23 | Optical fibre identification device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4441599A DE4441599C1 (en) | 1994-11-23 | 1994-11-23 | Optical fibre identification device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4441599C1 true DE4441599C1 (en) | 1996-02-08 |
Family
ID=6533890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4441599A Expired - Fee Related DE4441599C1 (en) | 1994-11-23 | 1994-11-23 | Optical fibre identification device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4441599C1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2375668A (en) * | 2000-12-14 | 2002-11-20 | Radiodetection Ltd | Identifying fibres by transmitting unique waveforms down them |
DE10321756B3 (en) * | 2003-05-15 | 2004-12-23 | Kurt Steffens | Electrical testing device for multi-fibre optical cable connections in optical telecommunications network has overall connection testing mode and individual fibre connections testing mode |
EP1691225A1 (en) * | 2005-02-11 | 2006-08-16 | Deutsche Telekom AG | Marking of optical fibers for identification |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3812143A1 (en) * | 1988-04-12 | 1989-10-26 | Siemens Ag | Method for identifying individual optical waveguides within a multi-core optical cable |
-
1994
- 1994-11-23 DE DE4441599A patent/DE4441599C1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3812143A1 (en) * | 1988-04-12 | 1989-10-26 | Siemens Ag | Method for identifying individual optical waveguides within a multi-core optical cable |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2375668A (en) * | 2000-12-14 | 2002-11-20 | Radiodetection Ltd | Identifying fibres by transmitting unique waveforms down them |
GB2375668B (en) * | 2000-12-14 | 2003-07-09 | Radiodetection Ltd | Identifying fibres of fibre optic cables |
DE10321756B3 (en) * | 2003-05-15 | 2004-12-23 | Kurt Steffens | Electrical testing device for multi-fibre optical cable connections in optical telecommunications network has overall connection testing mode and individual fibre connections testing mode |
EP1691225A1 (en) * | 2005-02-11 | 2006-08-16 | Deutsche Telekom AG | Marking of optical fibers for identification |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of patent without earlier publication of application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |