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嗜镶萋, 嗜镶菹 N�2�0,78


枢徨腓 潆� 镳铎脲眄钽� 桧蝈痿彘襦 RS-485

嗜镶萋 � 嗜镶菹 N×2×0,78

矣 16.�99–008–2001

相蝈眚 � 2256969


吾豚耱� 桉镱朦珙忄龛�

暑眈蝠箨鲨�

枢徨腓 耔祆弪痂黜 潆� 耔耱屐 疣耧疱溴敫眄钽� 襻铕� 溧眄, 桉镱朦珞桴 镳铎脲眄 桧蝈痿彘� RS-485 镱 耱囗溧痱囔 妊�/梯� 8482, TIA/EIA-485- A. 锑痍� 嗜镶萋 (嗜镶萋�, 嗜镶萋�) 桁妣� 皴痱梏桕囹 镱驵痦铋 徨珙镟耥铖蜩 磬 耦铗忮蝰蜮桢 蝠遽钼囗���, 篑蜞眍怆屙睇� � 梦岩 12.2.007.14- 75 (�.2), 拖� 248-97 (�.5.1, 闲梦 1) 镱 礤疣耧痤耱疣礤龛� 泐疱龛� 镳� 钿桧铟眍� 镳铌豚潢� (戾蝾� 桉稃蜞龛� 镱 梦岩 � 梯� 60332-1-2–2007), � 疣琊屮屙桢 藻溴疣朦眍� 耠箧猁 镱 蝈蹴铍钽梓羼觐祗 磬溏铕� 磬 镳桁屙屙桢 忸 忡瘥忸铒囫睇� � 镱驵痤铒囫睇� 珙磬� 忭篁痂 � 忭� 镱戾龛�, 镳� 篑腩忤� 玎螓 铗 镳�祛泐 忸玟彘耱忤� 耦腠鬻眍泐 桤塍麇龛� � 囹祛耵屦睇� 铖噤觐�. 枢徨朦 爨痍� 嗜镶菹 耧塍囹桊箦蝰� 磬 铗牮铎 忸玟篚�, � 赅徨朦睇� 赅磬腓玎鲨��, 觐腚尻蝾疣�, 鬣耱梓眍 玎蜞镫桠噱禧� 镱戾龛��. 枢徨腓 皴痱梏桷桊钼囗� � 耔耱屐� 梦岩 � � 桁妣� 疋桎弪咫蜮� � 蜩镱忸� 钿钺疱龛� 蓄耨栝耜钽� 填瘃觐泐 绣汨耱疣 洋漕躅漶蜮�. 橡邃磬珥圜屙� 潆� 桉镱朦珙忄龛� � 耔耱屐圊 烟妊 镱 梦岩 � 22.1.12–2005. 相瘥 � 祉钽铒痤忸腩黜� 戾漤� 塍娓睇扈 骅豚扈 滂囔弪痤� 0,78 祆 (7×0,26 祆) � 桤铍�鲨彘 桤 镱痂耱钽� 镱腓桦屙�, � 钺� 疣礤 桤 嚯铍噔襦眍忸� 脲眚� � 漯屙噫睇� 镳钼钿龛觐� � 铒敫蜿铋 桤 戾漤 塍娓睇� 镳钼铍铌 镫铗眍耱 88- 92%. 相瘥 桁妣� 鲡弪钼簋 觐滂痤怅� 桤铍�鲨�. 吾铍铟赅 桤 镱腓忤龛膈腩痂漤钽� 镫囫蜩赅蜞 潆� 赅徨�� 爨痍� 嗜镶萋 桦� 疋弪铖蜞徼腓玷痤忄眄钽� 镱腓桦屙� 潆� 嗜镶菹.
蓦尻蝠梓羼觇� 镟疣戾蝠�
蓦尻蝠梓羼觐� 耦镳铗桠脲龛� 骅臌 镱耱��眄铎� 蝾牦 镳� 蝈祜屦囹箴� 20 °C, 礤 犷脲�, 戊/100� 5,9
蓦尻蝠梓羼觐� 耦镳铗桠脲龛�  疣磬 镱耱��眄铎� 蝾牦 镳� 蝈祜屦囹箴� 20 °C 潆� 赅徨脲� � 麒耠铎 镟� N=1; 2; 3; 4, 礤 犷脲�, 戊/100� 1,00; 0,59; 0,51; 0,40
礼桁戾蝠�� 尻蝠梓羼觐泐 耦镳铗桠脲龛� 镱耱��眄铎� 蝾牦 镳钼钿龛觐� � 镟疱, 礤 犷脲�, % 3
骂腠钼铄 耦镳铗桠脲龛� 磬  鬣耱铗� 1 堂�, 戊 120 ± 10%
蓦尻蝠梓羼赅� 胳觐耱� 镟瘥, 礤 犷脲�, 镌/� 42
蓦尻蝠梓羼赅� 胳觐耱� 戾驿� 钿眍� 骅腩� � 漯筱桁� 骅豚扈, 耦邃桧疙睇扈 � 疣眍�, 礤 犷脲�, 镌/� 71
暑翳鲨屙� 玎蝮踵龛� 镳� 鬣耱铗� 1 堂�, 礤 犷脲�, 淞/100� 1,65
锑耨钽噌囵栩睇� � 耧塍囹圉桀眄 镟疣戾蝠�
 阻耠� 镟� � 赅徨脲, N 袜痼骓 疣珈屦 赅徨��, 礤 犷脲�, 祆 惕�. 疣滂篑 桤汨徉 赅徨��, 祆 朽聍弪磬� 爨耨� 1觎 赅徨��, 赉 蔫囡噻铐 疣犷麒� 蝈祜屦囹箴, °� 佯铌 耠箧猁, 礤 戾礤�, 脲�
嗜镶萋 嗜镶菹 嗜镶萋 嗜镶菹
1 7,3 73,0 50,8 45,7 – 40 ÷ 70 – 60 ÷ 85 25
1,5 8,1 81,0 61,3 55,5
2 10,6 106,0 86,6 78,3
3 11,3 113,0 103,5 94,4
4 12,0 120,0 121,0 111,2
5 14,2 142,0 165,0 148,0
6 15,5 155,0 186,8 168,2
7 15,5 155,0 199,6 181,0
9 18,6 186,0 255,3 230,4
10 20,0 200,0 284,4 256,4

项 蝠遽钼囗棹 玎赅琪桕� 忸珈铈眍 桤泐蝾怆屙桢 赅徨脲� � 钺铍铟觐� 桤 镱腓忤龛膈腩痂漤钽� 镫囫蜩赅蜞:
– 镱恹眄铋 祛痤珙耱铋觐耱� 磬 蝈祜屦囹箴� 漕 –60°� (嗜镶萋�).