When should I use an OTDR and a visual fault locator?

An OTDR and a visual fault locator serve different but complementary roles in fiber testing and troubleshooting.

Use an OTDR when

• You need a broader view of link condition and optical events.
• You need to estimate the location of losses, breaks or connection-related events.
• You are completing acceptance testing, maintenance assessment or restoration work.

Use a visual fault locator when

• You need a quick visible continuity check over a shorter link.
• You are tracing a fiber or checking for a readily visible fault.
• You need a simple field tool alongside more detailed test equipment.

Select the appropriate test process for the network specification and follow the equipment instructions for safe operation.