Exfo FTB-3930 MultiTest Uživatelský manuál stáhnout pdf (Strana 67)

Multifunction Loss Tester 61

10 Identifying Fiber Faults

Visually

The visual fault locator (VFL) helps you identify bends, faulty connectors,

splices and other causes of signal loss.

From its dedicated port, the VFL emits a red signal which becomes visible

at the location of a fault on the fiber. This signal can be continuous

(CW, the default) or blinking (1 Hz).

 If you switch to power meter or ORL meter, a VFL status pane is always

displayed.

 The VFL status is indicated with a LED in the status bar and on the

platform front panel.

Note: The platform front panel always shows the source, VFL, ORL meter or talk

set port status (even when you use other applications).

WARNING

When the VFL is active, the VFL port emits visible laser radiation.

Avoid exposure and do not stare directly into the beam. Ensure that

any unused port is properly protected with a cap.

FTB-3930

MULTITEST

Visual fault locator (VFL) port

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Exfo FTB-3930 MultiTest Uživatelský manuál Strana 67