25-pair Cat5 FTP Waterproof Cable (outdoor

Standard:YD/T1019-2001;ANSI/EIA/TIA-568-B.2-2001;ISO/IEC11801 Structure:Single-stranded bare copper wire; polyethylene (PE) insulated; two insulated conductors twisted into pairs; polyester film and weather-resistant black PE or PVC/LSZH (Low Smoke Zero Halogen) jacket. The product is applicable to the auxiliary main line system and open offices. Range of application: Support 10 Base T, 100 Base T, ATM Ethernet, Token Ring TP-PMD voice, telephone, multimedia and other types of network applications; its transmission performance is equivalent to that of 4-pair horizontal cables. Parameter: Frequency(MHz) 1 4 10 16 20 31.25 62.5 100 Attenuation(dB/100m) 2.0 4.1 6.5 8.2 9.3 11.7 17 22 NEXT(dB) 65.3 56.3 50.3 47.2 45.8 42.9 38.4 35.3 PS NEXT(dB) 62.3 53.3 47.3 44.2 42.8 39.9 35.4 32.3 ELFEXT(dB) 63.8 51.8 43.8 39.7 37.8 33.9 35.4 32.3 PS ELFEXT(dB) 60.8 48.8 40.8 36.7 34.8 30.9 34.9 20.8 Return loss(dB) 20 23 25 25 25 23.6 21.5 20.1