AFL FLX380-304 Manuale di riferimento rapido - Pagina 6

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Test Settings: General OTDR Test Modes

Setup

Parameter

Full Auto

Wavelength User selects single or multiple wavelength(s) at which to test.

Auto Setup

N/A

(not applicable)

Range

N/A: automatic

Pulse width N/A: automatic,

based on auto-

detected range

Averaging

Resolution

N/A: automatic

Range: When setting manually, select [Range],

which is at least 20% longer than the fiber under

test.

Pulse width [Pulse]: Select wider pulse widths to

obtain cleaner traces (less noisy). Select narrower

pulse widths to detect events which are close

together (better resolution).

General-Purpose OTDR Test Mode

Real Time

[Off]: User sets all parameters manually.

[By Range]: User sets [Range] & [Resolution], [Pulse width] &

[Averaging] selected automatically.

User sets OTDR scan range.

Automatic if [Auto Setup] parameter is set to [By Range] option.

User-set if [Auto Setup] parameter is set to option [Off].

N/A: 1 second

Automatic if [Auto Setup] is set to [By Range].

updates

User-set if [Auto Setup] is set to [Off].

User-set [High] or [Normal].

Expert

Averaging Time [Averaging]: Longer averaging

times produce cleaner traces.

Resolution: [High] resolution provides close data

spacing for more precise event location and better

detection of closely spaced events. [Normal]

resolution uses more filtering to provide a cleaner

trace, but with lower resolution.