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ʱ䣺2019-07-15 17:28 Դδ֪ ༭admin

Ϊʲôƽʱ˵һ˫˫ߣ˵һһأ

Ϊʲôƽʱ˵һ˫˫ߣ˵һһأ

Ϊʲôƽʱ˵һ˫˫ߣ˵һһأΪʲôƽʱ˵һ˫˫ߣ˵һ...

Ϊʲôƽʱ˵һ˫˫ߣ˵һһأ

Ϊʲôƽʱ˵һ˫˫ߣ˵һһأΪʲôͺͽոҪһԶһأллˣشĺõӷ֣չ

ѡ1ĹؼʣϡҲֱӵ“”⡣

չȫ˫ߣTwisted Pair໥Եĵ߰һĹƣһ˳ʱƣһƳɵһͨߣϢͨ紫ʡ˫߹ȥҪģźŵģͬźŵĴ䡣˫DzһԻԵĽ߻ʺϵķʽһŲţҪǽźŵĶšԵͭ߰һܶȻһ𣬿ԽźŸŵij̶ȣÿһڴзĵ粨ᱻһϷĵ粨“˫”Ҳɴ˶˫ߺžԵͭ໥ƶɣʵʹʱ˫ɶ˫һһԵ׹ġ͵˫ĶԵģҲи˫߷һ׹ġЩdz֮Ϊ˫ߵ¡˫߷Ϊ˫(Shielded Twisted PairSTP)˫(Unshielded Twisted PairUTP)˫˫Ե֮һβ㡣βɼٷ䣬ֹϢҲֹⲿŸŵĽ룬ʹ˫߱ͬķ˫߾иߵĴʡ˫ߣUnshielded Twisted PairдUTPһݴߣĶԲͬɫĴɣ㷺̫·͵绰С˫걻ڱĵĵ绰ҪUTPɣɵ绰˾ӵС˫ߣǰ߾ϸߣһߣҪ䣨һ׼Ҫڰʮ֮ǰĵ绰£ͬݴ䡣2MHZߴ4Mbpsݴ䣬ʹ4MBPS淶ƴЭľɵ3ߣָĿǰANSIEIA/TIA568׼ָĵ£õµĴƵ16MHz估ߴΪ10Mbpsݴ䣬Ҫ10BASE-T4ߣµĴƵΪ20MHzߴ16Mbpsݴ䣬ҪڻƵľ 10BASE-T/100BASE-T5ߣܶȣһָľԵϣΪ100MHzߴΪ1000Mbpsݴ䣬Ҫ100BASE-T1000BASE-T硣õ̫¡6˥С٣Ҿиߵ˥봮ŵıֵACRȣStructural Return LossСʱܵõܴߡ5Ҫǧλ̫1000Mbps

7ߣµĴƵΪ1MHz250MHz಼MHzʱۺ˥űȣPS-ACRӦнϴṩ2ڳĴ಼ߵĴԶԶڳ׼ڴʸ1GbpsӦá볬һҪIJͬڣڴԼزķܣһȫ˫ĸӦöԣĻزǼҪġ׼ȡ˻·ģͣ߱׼ε˽ṹҪIJ߾Ϊ·ijȲܳ90mŵȲܳ100m

Ŀǰ˫߿ɷΪ˫ߣUTP=UNSHILDED TWISTED PAIR˫ߣSTP=SHIELDED TWISTED PAIR˫ߵµԼС䣬ȫ䣬˫߼۸ԽϸߣװʱҪȷ˫ߵѡ

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