AD1000 User’s Manual
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3.8 Load Default
This function is used to set system settings to factory default. Those parameters
include: Interface style, language, power saving and OTDR features.
Load default:
In main interface, click [
]
In setting menu, click [Load Default], system promotes a warning message: “Restore
factory settings?”
Click “Yes” to continue, click “No” to cancel.
Unless it’s necessary, please do not load default because it will
erase your existing settings.
4 Basic Information of OTDR Module
4.1 Principle of OTDR Module
OTDR (Optical Time Domain Reflectometer) is a measurement instrument for
identifying optic fiber transmission features. AD1000 is mainly used to measure
attenuation of a whole optic fiber chain and provide attenuation details relating to
length, namely detect, locate and measure any event in optic fiber chain (Events
refer to faults caused by splicing, connectors and bending). Its non-destructive,
one-end connection and rapid measurement features have made the OTDR module
an indispensable tool for the testing application of optic fiber manufacture,
construction and maintenance.
The faults and heterogeneity of optic fiber itself cause Rayleigh scattering of light
pulse transmitted in optic fiber. Part of light pulse is scattered in the reverse direction,
and this is called Rayleigh backward scattering, which actually provides attenuation
details relating to length.
