• Compact, rugged, lightweight
• 150, 500, and 1000m lengths standard
• Available with a variety of connector styles
• Compact! Fits easily in OTDR cases or kits

Fiber Rings are often a necessity when testing with an OTDR or Optical Troubleshooter. A launch cable, which connects the OTDR or Optical Troubleshooter to the link under test, reveals the insertion loss and reflectance of the near-end connection. A receive cable, which connects to the far-end of the link, reveals the insertion loss and reflectance of the far-end connection. Launch and receive test cables can range from 150 m to 1 km (or longer) in length. Because very long test cables are impractical to transport and use, AFL offers coiled lengths of 50 μm multimode, 62.5 μm multimode, or single-mode fiber packaged in compact rings.

Fiber Rings of 150 m of fiber are ideal for premises fiber network test applications. Fiber Rings of 500 m and 1 km of single-mode fiber are designed for broadband, long haul fiber network test applications.

Applications
■ Use to test link loss with an OTDR
■ For use as OTDR launch cable
■ For use as OTDR receive cable
■ Measure insertion loss and reflectance of near- and far-end connections