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Executive Standard :
Accordance with the China standard No. YD/T（1019-2001）, American standard No. ANSI/TIA/EIA-568B.2 , ISO/IEC11801 and UL Subject 444 of America.
Product Description:
Conductor: Solid annealed flexible copper with diameter in 0.52mmInsulation: Solid Polyethylene, HDPE
Pairs: four pairs, color: blue/blue-white, orange/ orange-white, green/green-white, brown/ brown-white
Core: four-stranded
Shield: Aluminum tape, Compound aluminum-plastics tape, braid tinned copper braid
Shield density: ：100/40
Sheath: Flame-retardant PVC or low smoke no halogen with diameter in 7.2mm
Product Performance:
| （MHz）Frequency | （ohm）Characterimpedance | （db）Return Loss | db/100mAttenuation | db/100mNear-end crosstalk | db/100mEquivalent far-end crosstalk |
| 0.772 | 100±15 | 19.4 | 1.8 | 67.0 | 66.2 |
| 1.0 | 20.0 | 2.0 | 65.3 | 64.0 | |
| 4.0 | 23.0 | 4.1 | 56.3 | 52.0 | |
| 8.0 | 24.5 | 5.8 | 51.8 | 45.9 | |
| 10.0 | 25.0 | 6.5 | 50.3 | 44.0 | |
| 16.0 | 25.0 | 8.2 | 47.2 | 39.9 | |
| 20.0 | 25.0 | 9.3 | 45.8 | 38.0 | |
| 25.0 | 24.3 | 10.4 | 44.3 | 36.0 | |
| 31.25 | 23.6 | 11.7 | 42.9 | 34.1 | |
| 62.5 | 21.5 | 17.0 | 38.4 | 28.1 | |
| 100.0 | 20.1 | 22.0 | 35.3 | 24.0 |