Detailed Product Description: 1) Features: Low PDL low Insertion Loss High Isolation Stable and Reliable 2) Applications: Passive Optical Network CATV System 3) Specifications: Specifications: 1310/1490/1550nm 1310nm Channel : 1310A?5nm 1490nm Channel : 1490A?5nm 1550nm Channel : 1550A?5nm Operating Temperature : -20 to+85 Degree Storage Temperature : -40 to+85 Degree