Title:

Accurate Location of Fiber Cable Fault with OTDR, Journal of Telecommunications and Information Technology, 2021, nr 4

Creator:

Borzycki, Krzysztof ; Gajewski, Paweł

Subject and Keywords:

OTDR ; fiber optic cable ; helix factor ; fault location ; single-mode fiber

Description:

The paper reviews the factors limiting the accuracy of locating a fiber optic cable fault when using an optical time domain reflectometer (OTDR) and describes an error estimation method for typical use cases. The primary source of errors lies in the complex relationship between the length of the optical fiber (measured by OTDR), its routing, cable design depending on cable design and type of installation (i.e. duct, directly buried, aerial) as well as the spare lengths used for service purposes. The techniques which considerably improve the accuracy of the fault localization processes are presented, the importance of accurate documentation of the network and of referencing the fault location to the nearest splice instead of end of the line are discussed, as is the absence of cable helix factor in data sheets

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy

Date:

2021, nr 4

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności