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鎮ㄥソ锛屾杩庝締(l谩i)鍒扮董搴�(k霉)闆诲瓙甯傚牬(ch菐ng)缍�(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

鏁�(sh霉)鎿�(j霉)瑾ょ⒓娓�(c猫)瑭﹀剙
闁辫畝锛�4837鏅�(sh铆)闁擄細2011-01-24 09:16:59

銆�銆�鏁�(sh霉)鎿�(j霉)瑾ょ⒓娓�(c猫)瑭﹀剙鏄竴娆剧湡褰╁睆銆佸湒褰㈠寲銆佸叏涓枃鎿嶄綔鐣岄潰鐨勬墜鎸佸紡E1/鏁�(sh霉)鎿�(j霉)瑾ょ⒓娓�(c猫)瑭﹀剙琛ㄣ�傜敤浜嶦1/G.703绶氳矾鐨勭従(xi脿n)鍫�(ch菐ng)缍(h霉)鍜屽垎鏋�锛屼互鍙�鏁�(sh霉)鎿�(j霉)绶�璺�(V.35锛孷.24/RS232,RS449,RS530,X.21)鐨勮纰兼脯(c猫)瑭�銆侶CT-BERT/C鍔熻兘鍏ㄩ潰,鎿嶄綔鏂逛究,鏃㈠彲鎸夌収G.821,G.826,M.2100绛夊湅(gu贸)闅涙(bi膩o)婧�(zh菙n)閫�(j矛n)琛屾脯(c猫)瑭︾祼(ji茅)鏋滅殑鍒嗘瀽銆侀’绀�,閭勫彲鏍规摎(j霉)鐢ㄦ埗鐨勮姹傚皪(du矛)娓�(c猫)瑭︽暩(sh霉)鎿�(j霉)閫�(j矛n)琛屽瓨鍎�(ch菙)銆佺当(t菕ng)瑷�(j矛)銆佸垎鏋�锛屾槸绶氳矾璩�(zh矛)閲忔脯(c猫)閲忕殑鐞嗘兂宸ュ叿銆�

鐗归粸(di菐n)

銆�銆�鈼忕湡褰╁睆銆佸湒褰㈠寲銆佸叏涓枃鎿嶄綔鐣岄潰

銆�銆�鈼忓绋鍨婨1宸尟(cu貌)鍒嗘瀽锛屽寘鎷珽1骞�銆佸湒妗堛�丆RC銆佸拰BPV鍒嗘瀽

銆�銆�鈼忚纰兼�ц兘鍒嗘瀽锛圙.821锛孏.826锛孧.2100锛�

銆�銆�鈼廍1淇¤櫉(h脿o)闋诲亸娓�(c猫)瑭�

銆�銆�鈼忓彲灏�(du矛)E1绶氳矾鐨勫悇鍊�(g猫)鏅�(sh铆)闅欓��(j矛n)琛岃ō(sh猫)瀹氾紙FAS锛孋AS锛�

銆�銆�鈼忓彲灏�(du矛)E1淇￠亾涓殑鏅�(sh铆)闅欓��(j矛n)琛屾娊鍙栧拰鎻掑叆锛圢脳64K鏁�(sh霉)鎿�(j霉)锛�

銆�銆�鈼忓皪(du矛)淇′护鐨凙BCD姣旂壒閫�(j矛n)琛岃ō(sh猫)瀹�锛岄’绀�

銆�銆�鈼忓皪(du矛)0鏅�(sh铆)闅欑殑Sa姣旂壒閫�(j矛n)琛岃ō(sh猫)瀹氾紝椤ず

銆�銆�鈼忔暩(sh霉)鎿�(j霉)绔彛鐨勮纰兼脯(c猫)瑭︼紙鎺ュ彛褰㈠紡锛歏.35锛孷.24锛廟S232锛孯S449锛孯S530锛孹.21锛�

銆�銆�鈼忛洟绶氬垎鏋怋ERT鎬ц兘

銆�銆�鈼忓彲瀛樺劜(ch菙)100鍊�(g猫)閰嶇疆鍜屾脯(c猫)瑭︾祼(ji茅)鏋滄枃浠讹紝鐢辩敤鎴跺瓨鍎�(ch菙)鎴栬(di脿o)鍑�銆侾C绲傜鏈湴鎴栭仩(yu菐n)绋嬫帶鍒�

銆�銆�鈼忕洿鏂瑰湒鐩磋椤ず

銆�銆�鈼忓绋脯(c猫)瑭︾祼(ji茅)鏋滆几鍑烘柟寮忥細鍏�(n猫i)閮ㄥ瓨鍎�(ch菙)绲�(ji茅)鏋�銆佹恫鏅跺睆椤ず銆佸苟琛屽彛鎵撳嵃

銆�銆�鈼忓収(n猫i)缃ぇ瀹归噺鍏呴浕闆绘睜锛屼究浜庣従(xi脿n)鍫�(ch菐ng)鏀滃付浣跨敤銆�

甯哥敤娓�(c猫)瑭︽柟娉�

銆�銆�G.703 E1 鍙ERT 娓�(c猫)瑭�

BERT 纰煎瀷

63,127,511,2047,223鈥�1 锛� QRSS 绛夊绋⒓鍨嬪強鐢ㄦ埗绶ㄧ▼

BERT 椤ず鏍煎紡

ITU G.821,ITU G.826,ITU-M.2100

BERT 鐧�(f膩)閫佸樊閷�(cu貌)鐜�

寮�(qi谩ng)鍔犲柈涓�宸尟(cu貌)锛屽挤(qi谩ng)鍔� 10-3 鍒� 10-7宸尟(cu貌)鐜�

鎬ц兘鍒嗘瀽

Logic,Frame,CRC,BPV,E-bit 宸尟(cu貌)锛屾帴鏀惰▓(j矛)鏁�(sh霉)锛岃纰肩锛岀劇(w煤)瑾ょ⒓绉掞紝瑾ょ⒓鐜�

E1 鍒嗘瀽鏂瑰紡

淇￠亾鍦栫ず锛� Sa 姣旂壒锛屼俊浠� ABCD 姣旂壒绛�

E1 鍙ｈ(gu墨)鏍�

鏀剁櫦(f膩)閫熺巼

2048K bit/s卤3ppm.@25鈩�

绶氳矾绶ㄧ⒓

HDB3

鑴堟矕鐗规��

绗﹀悎 ITU-T G.703

鏅�(sh铆)閻樿ō(sh猫)瀹�

鍏�(n猫i)鏅�(sh铆)閻�锛屽鏅�(sh铆)閻橈紝鎭㈠京(f霉)鏅�(sh铆)閻�锛屾暩(sh霉)鎿�(j霉)鍙ｆ檪(sh铆)閻�

骞�绲�(ji茅)妲�(g貌u)

涓嶆垚骞�锛屾垚骞�锛� FAS,FAS+CAS; 甯� CRC, 涓嶅付 CRC


銆�銆�鏁�(sh霉)鎿�(j霉)绔彛瑾ょ⒓娓�(c猫)瑭�
 

DTE 鎴� DCE 鍚屾瑾ょ⒓娓�(c猫)瑭�

DTE 鎴� DCE 浣庨�熷悓姝� / 鐣版瑾ょ⒓娓�(c猫)瑭�

鎺ャ��鍙�

V.35,V.24/RS232,RS449,RS530,X.21

V.24/RS232,V.35,RS449,RS530,X.21

閫熴��鐜�

N脳64K(64K鈥�2048K)

鐣版锛� 50 鈥� 115.2K bps
鍚屾锛� 150 鈥� 72K bps

BERT 纰煎瀷

63,127, 29 -1 (511),2 11-1 (2047),215-1 ITU 妯�(bi膩o)婧�(zh菙n)绛�

63,511,2047,FOX,SPACE,MARK,and ALT

鍩烘湰鎳�(y墨ng)鐢�

銆�銆�E1 绶氳矾瑾ょ⒓娓�(c猫)瑭�

銆�銆�骞�鑸囬潪鎴愬箑鐨勭鍒扮娓�(c猫)瑭�

銆�銆�鎴愬箑鐩�(ji膩n)娓�(c猫)

銆�銆�鍒嗘檪(sh铆)闅欑殑鎶藉彇鍜屾彃鍏�

銆�銆�鏁�(sh霉)鎿�(j霉)绶氳矾瑾ょ⒓娓�(c猫)瑭�

銆�銆�DTE/DCE n脳64k 鍚屾娓�(c猫)瑭�

銆�銆�DTE/DCE 浣庨�熺巼锛屽悓姝� / 鐣版娓�(c猫)瑭�

缍韩(k霉)闆诲瓙閫氾紝闆诲瓙鐭ヨ瓨(sh铆)锛屼竴鏌ョ櫨閫�锛�

宸叉敹閷勮姊�160367鍊�(g猫)