Intracity Fiber Engineer Interview Questions and Answers

Measurement equipment used in fiber engineering include OTDR, power meter, light source, and visual fault locator.

• OTDR (Optical Time Domain Reflectometer) measures the time and intensity of light reflected back from fiber optic cables.

• Power meter measures the power of light transmitted through the fiber optic cable.

• Light source generates light that is transmitted through the fiber optic cable to measure its attenuation.

• Visual fault locator is used to locate faults in fiber op...read more

Optical fiber color codes help identify individual fibers in a cable for proper termination and maintenance.

• Standard color code for 12-fiber cables: Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua.

• Each color represents a specific fiber, aiding in organization and troubleshooting.

• For example, in a 12-fiber cable, the first fiber is blue, the second is orange, and so on.

OTDR is used to test and troubleshoot fiber optic cables.

• Connect OTDR to fiber optic cable and set parameters

• Launch test and analyze results to locate faults or losses

• Use OTDR to measure distance to faults or splices

• Interpret OTDR trace to determine fiber characteristics

• OTDR can also be used for fiber optic network mapping

Network topology refers to the arrangement of different elements in a computer network.

• Types of topologies include star, ring, bus, and mesh.

• In a star topology, all nodes connect to a central hub.

• A ring topology connects each node to two others, forming a circular pathway.

• Bus topology uses a single central cable to connect all devices.

• Mesh topology allows for multiple paths between nodes, enhancing redundancy.

PLB stands for Polyethylene Lined Steel Pipe.

• PLB is a type of pipe used for underground fiber optic cables.

• It consists of a steel pipe with a polyethylene lining.

• The polyethylene lining protects the cable from moisture and other environmental factors.

• PLB is commonly used in urban areas where space is limited and underground installation is necessary.

• PLB is also known as HDPE (High-Density Polyethylene) pipe.