... They come with your choice of simplex or duplex cable configuration and are made to conform to IEC,Telcordia ... carefully designed to meet the IEC standards, GR-326-CORE, in the test of optical characteristics, vibration test, ... Φ0.9mm, Φ0.6mm buffered fiber PVC or LSZHPolishing MannerUPC,SPC,APC (8°& 6°)Insertion Loss≤ 0.1dB (For ... )Undercut -50nm ≤ U ≤ 50nmTested by DORC ZX-1 Fiber Optic LC Patch Cord