The optional VFL port in the Fiber OWL 4 VFL can be used as a troubleshooting tool to determine if there are breaks, micro-bends, or
any other anomalies causing excessive loss within the first few feet of the fiber under test located in the splice tray. The bright red
laser injects high-intensity red laser light into the near-end connector. If this light encounters any anomalies, such as a break or a
micro-bend, the light is deflected into the fiber jacket, producing a red glow at the point of the anomaly.
Follow the steps below:
Connect the VFL port to the fiber under test. It is recommended to use a fiber patch cable as shown below to avoid handling
the fragile jacketed fiber in the splice tray.
Power on the VFL. See page for instructions on operating the VFL port.
ptical fiber jackets are
colored
it is difficult to see red light shining
through, so
it is recommended to keep the room light at a minimum
do NOT insert an APC (Angled Physical Contact) connector in to the VFL port as this could damage the
angled ferrule on the APC connector.
65
Inspect the splice tray for anomalies. O
differently
, making
for best results,
.
OPERATION/MAINTENANCE
VISUAL FAULT LOCATION
