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鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺

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闁辫畝锛�32127鏅�(sh铆)闁擄細2010-11-30 22:08:56

銆�銆�2M瑾ょ⒓鍎�涓昏鐢ㄤ簬娓噺閫氫俊绶氳矾鏁�(sh霉)鎿�(j霉)閫氫俊鐨勮纰肩巼鍜屽垎鏋愮窔璺晠闅滃強鍘熷洜?锛熺厼濂栨剷璧濈摽钃�?M绯荤当(t菕ng)锛孨脳64K淇￠亾鍌宠几鍙冩暩(sh霉)娓噺鍙婃棩甯哥董璀�(h霉)娓│銆傞�氶亷杌熶欢閰嶇疆閬搁爡(xi脿ng)鏀寔澶氱ó娓│鍔熻兘锛屽寘鎷剤娌栨尝褰㈠垎鏋愩�佹姈鍕�(d貌ng)鑸�骞�涓辜锛屾墍鏈夐�欎簺鍔熻兘閮藉湪鐩稿悓鐨勭敤鎴剁晫闈笅瀵�(sh铆)鐝�(xi脿n)銆傞�氶亷鍦ㄩ�氱敤鐨勭‖浠跺钩鑷轰笂閫�(j矛n)琛岃粺浠堕厤缃拰閬告搰锛屽彲浠ユ豢瓒冲悇绋脯瑭﹂渶姹傦紝閭勫彲浠ユ牴鎿�(j霉)闇�姹傞噸鏂伴��(j矛n)琛岄厤缃垨鍗囩礆銆�

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銆�銆�1銆佸湪绶氳纰兼脯瑭�

銆�銆�2銆佹垚骞�鍜岄潪鎴愬箑淇¤櫉鐧�(f膩)鐢熷拰鎺ユ敹

銆�銆�3銆�2Mbit/s闈炴垚骞�瑾ょ⒓鎬ц兘娓│

銆�銆�4銆�2Mbit/s鎴愬箑銆丯脳64kbit/s閫氶亾瑾ょ⒓鎬ц兘娓│

銆�銆�5銆佹瘮鐗硅纰�銆佺法纰艰纰�銆佸箑瑾ょ⒓銆丆RC瑾ょ⒓銆丒姣旂壒瑾ょ⒓鎬ц兘娓│

銆�銆�6銆佷俊铏熶笩澶便�丄IS鍛婅銆佸箑閬�(yu菐n)绔憡璀︺�佸京(f霉)骞�閬�(yu菐n)绔憡璀�銆佸箑澶辨銆佸湒妗堝け姝ュ憡璀︽脯瑭�

銆�銆�7銆侀牷鍋忔脯瑭�

銆�銆�8銆佺窔璺俊铏熼牷鐜囨脯瑭�

銆�銆�9銆佽┍璺�氶亾淇¤櫉闆诲钩銆侀牷鐜囨脯瑭�

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銆�銆�15銆佸憡璀�銆佽纰肩洿鏂瑰湒鍒嗘瀽

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銆�銆�17銆佸箑鍏�(n猫i)瀹瑰垎鏋�

銆�銆�18銆丟.821銆丟.826銆丮.2100瑾ょ⒓鎬ц兘鍒嗘瀽

銆�銆�19銆佸绋纰煎拰鍛婅鎻掑叆

銆�銆�20銆佷笁绋几鍏ユ柟寮忥紙绲傛帴銆佹⿱鎺ャ�佺洠(ji膩n)娓級

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銆�銆�22銆丷S-232鎺ュ彛鎵撳嵃绲�(ji茅)鏋�銆�

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銆�銆�2M瑾ょ⒓鍎�鍦ㄧ窔娓│鍔熻兘

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銆�銆�鈽� 姣旂壒宸尟(cu貌)娓│閫熺巼锛� 2.048Mbps銆丯 锛堥�ｇ簩(x霉)锛夊拰 M(闈為�ｇ簩(x霉))脳 64Kbps(N&M=1~31)

銆�銆�鈽� 骞�鍨嬶細闈炴垚骞�銆丳CM-30銆丳CM-31銆丳CM -30C銆丳CM -31C. 绗﹀悎ITU-T G.704

銆�銆�鈽� 娓│鍦栨鐧�(f膩)鐢熷櫒锛�3 鍊�(g猫)闀烽仈(d谩) 16 姣旂壒鐨勫湒妗�锛屾脯瑭﹀湒妗堝弽杞�(zhu菐n)鍔熻兘

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銆�銆�鈽� CODE 宸尟(cu貌)锛氬樊閷�(cu貌)瑷�(j矛)鏁�(sh霉)鍜屾瘮鐜�

銆�銆�鈽� 骞�宸尟(cu貌): FAS銆丮FAS 鍜� CRC-4 宸尟(cu貌)瑷�(j矛)鏁�(sh霉)鍜屽樊閷�(cu貌)姣旂巼

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銆�銆�鈽� Bit 宸尟(cu貌): G.821 鍒嗘瀽銆丟.826 娓噺銆丮.2100 娓噺

銆�銆�鈽� E-bit 宸尟(cu貌): 宸尟(cu貌)瑷�(j矛)鏁�(sh霉)鍜屾瘮鐜�

銆�銆�鈽� 鍌宠几鏅�(sh铆)寤舵脯閲�锛屽柈浣嶇偤 UI 鍜� us, 1us 鍒嗚鲸鐜�銆佽寖鍦嶅緸 100us 鍒� 10 绉�

銆�銆�鈽� 鑷嫊(d貌ng)鐧�(f膩)閫佹檪(sh铆)閻樻媺鍋忥細鍚屾檪(sh铆)椤ず绶ㄧ⒓鍜屾瘮鐗归尟(cu貌)瑾ゃ�佸偝杓告檪(sh铆)寤�銆傝ō(sh猫)缃閮ㄦ檪(sh铆)閻橀仈(d谩) + 50kbps 甯� 1bps 姝ラ��(j矛n)鍙互鏌ョ湅 CAS 淇′护骞跺皪浠讳竴鏅�(sh铆)闅欓��(j矛n)琛岀洠(ji膩n)鑱�锛屾彃鍏� / 鎻愬彇鎿嶄綔

銆�銆�鈽� VF 瑾為煶娓噺: 50Hz锝�3950Hz 锛� 1Hz鍒嗚鲸鐜囷紱 +3dBm0锝�-60dBm0 锛� 1dB鍒嗚鲸鐜�

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銆�銆�2銆両TU G.821銆丮2100銆丟.826瑾ょ⒓鎬ц兘鍒嗘瀽

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銆�銆�7銆佸叏涓枃鑿滃柈锛屽ぇ灞忓箷椤ず锛屾搷浣滅啊渚� 锛�

銆�銆�8銆佸彲閫�(j矛n)琛屽浠诲嫏(w霉)宸ヤ綔锛堝彲浠ラ倞娓│閭婄炕闁变互鍓嶇殑瑷橀寗锛�锛�

銆�銆�9銆侀仈(d谩)9鍊�(g猫)娓│瑷�(sh猫)缃瓨鍎�锛�20鍊�(g猫)娓│绲�(ji茅)鏋滃瓨鍎�锛屽苟鍙��(j矛n)琛屾帀闆昏鎲�锛�

銆�銆�10銆佸彲鑸嘝C姗�(j墨)閫氫俊锛屽(sh铆)鐝�(xi脿n)鍦ㄥ井姗�(j墨)涓婂瓨鍎�锛屾墦鍗版脯瑭︽暩(sh霉)鎿�(j霉)锛屼篃鍙洿鎺ラ�ｆ帴鍒板井鍨嬫墦鍗版(j墨)锛�

銆�銆�11銆佸彲瀹氭檪(sh铆)闁嬪暉銆侀棞(gu膩n)闁夐��(j矛n)琛屾脯瑭︼紱

銆�銆�12銆佸叿鏈夊憡璀︺�佽纰肩洿鏂瑰湒鍒嗘瀽锛�

銆�銆�13銆佽粺浠朵笂缍�(w菐ng)鍗囩礆銆�

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