D fibre with a minimum bend radius of 10mm and a loss of 0. ast right-hand digit when considering the specification limits. This method is in accordance with the rounding method of ASTM Practice E29 (Standard Practice for using significant diITU-T (International Telecommunication Union) defines several single-mode fiber standards, including G. A1 vs. Today the industry is moving towards a G. A2 specification because this is not. G657A1 is a single mode fiber type optimized for special application scenarios (higher fiber density cabling requirements), and belongs to the ITU-T G. As a reliable high-performance bending insensitive single mode fiber, G657A1 has superior bending performance compared to G652D fiber. EasyBand® G657A1 bending insensitive single-mode fibre encompasses all the features of FullBand® fibre and provides good resistance to macro-bending. It is comprehensively optimised for use in O-E-S-C-L band (1260-1625nm). 652, which describes its characteristics, has been adapted to this experience.