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DMX 512鍗�(xi茅)璀�
闁辫畝锛�12283鏅�(sh铆)闁擄細2011-05-18 09:31:37

銆�銆�DMX 512鍗�(xi茅)璀版槸Digital Multipiex鐨勭府瀵�锛孌MX512鍗�(xi茅)璀版槸鐢盪SITT锛堢編鍦�(gu贸)鍔囬櫌鎶�琛�(sh霉)鍗�(xi茅)鏈�(hu矛)锛夌櫦(f膩)灞曟垚鐐哄緸鎺у埗鑷�(t谩i)鐢ㄦ(bi膩o)婧�(zh菙n)鏁�(sh霉)瀛楁帴鍙ｆ帶鍒惰(di脿o)鍏夊櫒鐨勬柟寮忋�傚叿鏈夌啊(ji菐n)鍠�銆佸彲闈犱互鍙婇潏娲荤瓑鐗归粸(di菐n)锛屽畠鏄瀛�(xu茅)涓婄殑涓�鍊�(g猫)鏂伴牁(l菒ng)鍩�锛屽叿鏈夊湪瑕�(gu墨)鍓囧熀绀�(ch菙)涓婄敘(ch菐n)鐢熺殑鍚勭ó濂囧鎶�琛�(sh霉)銆�

姒傝堪

銆�銆�DMX 512鏄湅(gu贸)闅涢�氱敤鐨勪竴绋珮閫熻(shu艒)鍙ュ嚭鏇�(sh奴)鐨勫崝(xi茅)璀�锛岄噰鐢≧S485纭欢绶氳矾锛屽拰涓�鑸殑RS485閫氫俊鏈夋墍涓嶅悓銆�

銆�銆�1銆侀噰鐢ㄥ柈鍚戦�氫俊銆�

銆�銆�2銆丏MX 512閫氫俊闇�瑕佸偝杓镐竴鍊�(g猫)88us鐨勪綆闆诲钩鏁�(sh霉)鎿�(j霉)锛屼綔鐐轰竴鍖呮暩(sh霉)鎿�(j霉)鐨勮捣濮嬪箑闋�锛屾帴鏀舵柟鏈夐枔闅欐娓�(c猫)闆昏矾锛岄渶鎵炬暩(sh霉)鎿�(j霉)璧峰骞�闋�锛岀劇(w煤)閫氫俊鏍￠(y脿n)銆�

銆�銆�3銆丏MX 512閫氫俊鐨勫浐瀹氭尝鐗圭巼鐐�250Kbps锛岀敱浜庨�氫俊鍗�(xi茅)璀伴枊(k膩i)鏀�锛屾晥鐜囧彲闈犳�ч珮锛屽湪鍌崇当(t菕ng)鑸炶嚭(t谩i)琛屾キ(y猫)寤ｆ硾閬�(y霉n)鐢�锛屽吋瀹笵MX 512閫氫俊鎺ュ彛宸叉槸澶у姛鐜嘗ED鐓ф槑鎺у埗绯荤当(t菕ng)閲岄粯瑾�(r猫n)鐨勯伕鎿�銆�

DMX 512鐨勯浕姘ｇ壒鎬�

銆�銆�DMX512閲囩敤EIA-485妯�(bi膩o)婧�(zh菙n)銆�

銆�銆�鐧�(f膩)閫佺锛氶倧杓��1鈥濅互鍏╃窔闁撳宸�+锛�2锝�6锛塚琛ㄧず锛�

銆�銆�閭忚集鈥�0鈥濅互鍏╃窔闁撳宸偤-锛�2锝�6锛塚琛ㄧず锛�

銆�銆�鎺ユ敹绔細A姣擝楂�200mv浠ヤ笂鍗宠獚(r猫n)鐐烘槸閭忚集鈥�1鈥濓紱

銆�銆�A姣擝浣�200mv浠ヤ笂鍗宠獚(r猫n)鐐烘槸閭忚集鈥�0鈥�銆�

瑭宠В

銆�銆�DMX 512鍌宠几閫熺巼鍥哄畾鐐�250Kbps锛屾瘡鍊�(g猫)鏁�(sh霉)鎿�(j霉)浣嶇殑鏅�(sh铆)闁撴槸4us锛屾瘡鍊�(g猫)瀛楃瘈(ji茅)鏄崄涓�浣�锛屽氨鏄�44us

銆�銆�1绉�=1000姣

銆�銆�1姣=1000寰

銆�銆�鍥犳512鍊�(g猫)瀛楃瘈(ji茅)鐨勬暩(sh霉)鎿�(j霉)鍌宠几鏅�(sh铆)闁撶偤44*512=22.528ms

銆�銆�鏁�(sh霉)鎿�(j霉)鐨勫箑闋�氬父鏄�88us锛屾暩(sh霉)鎿�(j霉)鐨勫箑闋毃鍚庢槸涓�鍊�(g猫)绌洪枒骞�锛岀┖闁戝箑鏅�(sh铆)闁撻暦(zh菐ng)搴︽槸8us-1ms锛�512瀛楃瘈(ji茅)鐨勬暩(sh霉)鎿�(j霉)鍖呬箣鍓嶉倓鏈変竴鍊�(g猫)瀛楃瘈(ji茅)锛岃〃绀鸿ō(sh猫)鍌欑殑浠ｈ櫉(h脿o)鎴栬嚜瀹氱京鐢ㄩ��锛岄�氬父鏄�0锛岃┎瀛楃瘈(ji茅)鐨勬暩(sh霉)鎿�(j霉)鍙敤鑷嫊(d貌ng)瀵⒓鍛戒护涔嬬敤銆�

DMX 512

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宸叉敹閷勮姊�162542鍊�(g猫)