What is overnight OTDR testing?

Overnight OTDR Testing refers to the use of an Optical Time-Domain Reflectometer (OTDR) to test fiber optic cables during nighttime or off-peak hours. This is often done to avoid disrupting network services during the day, as testing can temporarily affect data transmission. OTDR testing helps identify faults, splices, and losses along the fiber cable, ensuring the integrity and performance of the network. Overnight testing is especially common in large-scale networks or critical infrastructure where uptime is essential.