The patch cords shall meet an optical return loss equal to or better than -25dB per mated pair for PC polish, equal to or better than -55dB for UPC polish, or -65dB for APC polish. Insertion loss shall not exceed 0.2dB per mated pair for both multimode and single-mode. The patch cords shall be available in 1, 2, 3, 5 and 10 meter lengths. The patch cords shall be compliant with TIA-568-C.