For OS1a inside plant singlemode optical fiber cable, what is the maximum attenuation at 1550 nm in dB/km?

The maximum attenuation for OS1a inside plant singlemode optical fiber cable at 1550 nm is 1.0 dB/km. This specification is critical in understanding the performance and efficiency of fiber optic networks, especially for long-distance communication, where signal loss can significantly affect overall system effectiveness.

At 1550 nm, which is one of the primary wavelengths used for telecommunications due to its low attenuation and optimal performance characteristics, the industry standards dictate that OS1a fibers must not exceed 1.0 dB/km. This ensures that the signal can travel longer distances without excessive loss, maintaining the integrity and quality of the data transmitted.

Understanding these specifications is crucial for professionals in the field, as it directly influences cable selection, network design, and overall system performance in fiber optic applications.