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VISUAL FAULT FINDER
The SCT-MMA/SMA fiber optic adapters include a visual fault finder (VFL) providing an easy to use troubleshooting tool. The VFL
creates a continuous or modulated light source powerful enough to escape from sharp bends and breaks in jacketed or bare fiber and
poorly mated connectors used to locate trouble spots in jumper cables, distribution frames, splice strays, patch panels, cable splice points
and for tracing fiber runs. The presence of the VFL’s red light indicates a trouble spot in the fiber optic link.
The VFL uses a universal connector that will accept SC, ST or FC connecters with a 2.5 mm ferrule. The VFL can be used with either
multimode or singlemode fiber.
VFL OPERATION
The VFL is enabled on SCT-MMA or SCT_SMA fiber optic adapter by pressing the VFL enable button. The VFL output operates
independently from the SCT and can be enabled or disabled at any time. The first press of the VFL enable button enables continuous VFL
mode as indicated by a constant red VFL mode indication LED. Pressing the VFL enable button a second time will enable modulated
mode as indicated by a blinking red VFL mode indication LED. Pressing the VFL enable button a third time will turn off the VFL
function.
SCT PRIMARY or
SECONDARY
Microbend or Broken Fibre
Broken Fibre in Connector
Sharp Bend
Bad Splice
VFL
Press the VFL enable button once for continuous mode. Press again
for modulated mode. Press again to turn off.
Figure 8 Visual Fault Locator