Current field terminations for connectors are commonly achieved by?

• A. Fusion splicing a factory-made or SOC pigtail onto the cable
• B. Mechanical crimp only
• C. Soldering the connector body
• D. Not possible in field

Answer: (A)

Field terminations rely on fusion splicing a factory-made or SOC pigtail onto the fiber because this creates a permanent, low-loss, well-aligned join that’s robust in real-world conditions. By splicing the bare fiber to a pre-terminated pigtail, you end up with a connector-end that has already been prepared for a reliable optical interface, and you only need to protect the splice afterwards. Mechanical crimp-only methods often yield higher and less predictable losses and can be less durable over time. Soldering the connector body isn’t practical for fiber and isn’t how field terminations are done. So fusion splicing to a pigtail is the standard, practical choice.