A technician spliced two pigtails in a splice tray. The link passes the initial OTDR test. Two days later, the link drops. When the tech opens the tray, the link suddenly comes back up. What is the likely issue?
Answers
AThe fusion splice was "cold" and needed exposure to air to heal
BLight from the room illuminated the fiber and restored the signal
CThe pigtail jacket absorbed moisture from the air
DThe fiber was twisted or pinched by the splice tray lid, creating a macrobend under pressure
Correct answer: D — The fiber was twisted or pinched by the splice tray lid, creating a macrobend under pressure
Improper routing in a splice tray can cause the lid to pinch a fiber, inducing a severe macrobend or mechanical stress. Opening the tray relieves the pressure.
MIFOTRA exam practicealigned to TIA-568.3-D / ITU-T G.652·3 marks·Medium