OSP OSP Splicing & Termination Techniques

Question 1

What is the primary method used to permanently join two single-mode fiber optic strands in OSP applications?

Accepted Answer

Fusion splice

Answer

Fusion splicing uses an electric arc to melt and fuse two fiber ends together, producing the lowest insertion loss and highest mechanical strength for permanent OSP fiber joins.

Question 2

What is a typical acceptable insertion loss value for a properly executed fusion splice on single-mode fiber in OSP work?

Accepted Answer

Less than 0.1 dB

Answer

A well-executed fusion splice on single-mode fiber should produce an insertion loss of less than 0.1 dB, with quality machines routinely achieving 0.02–0.05 dB.

Question 3

What tool is used to cleave fiber optic strands before fusion splicing, and what angle must the cleave achieve?

Accepted Answer

Precision cleaver; 90 degrees (perpendicular to fiber axis)

Answer

A precision cleaver scores and breaks the fiber to create a clean, flat end face perpendicular to the fiber axis (90°), which is critical for achieving a low-loss fusion splice.

Question 4

Which document standard specifies acceptance test procedures for OSP fiber optic splices in the United States?

Accepted Answer

Telcordia GR-20

Answer

Telcordia GR-20 (Generic Requirements for Optical Fiber and Optical Fiber Cable) specifies the performance and acceptance test requirements for OSP fiber optic splices and cables.

Question 5

What is the purpose of a heat-shrink splice protector sleeve applied after a fusion splice?

Accepted Answer

To mechanically protect and strain-relieve the splice point

Answer

The heat-shrink splice protector sleeve slides over the splice point and shrinks to provide mechanical protection, bending strain relief, and a rigid support that prevents the fragile fused joint from breaking.

(OSP) Outside Plant Designer Practice Test

(OSP) Outside Plant Designer Practice Test

OSP OSP Splicing & Termination Techniques