µ¼Ö»ðÔÖµÄÔ­Òò²»¿ÉºöÊÓ¡£¡£Õâ·½ÃæµÄÔ­ÒòÓУº1.µçÆøÏß·µÄÍýÏ븺ÔØÔ£¶ÈֵƫС¡£¡£20ÊÀ¼Í80ÄêÔÂÒÔÇ°£¬£¬£¬£¬£¬£¬Ò»Ð©ÃñÓÃÐÞ½¨µÄµçÆøÏß·ϵͳÔÚÍýÏëʱ£¬£¬£¬£¬£¬£¬½ö˼Á¿ÁËͨË×µÄÕÕÃ÷Óõç£¬£¬£¬£¬£¬£¬ÒÔÊÇÕû¸öÐÞ½¨µçÆøÏß·¸ººÉÍýÏëÔ£¶È¶¼½ÏС£¡£»£»£»£»Ëæ×Å¡¤¡¤¡¤

µçÁ¦µçÀÂ×÷ΪµçÁ¦Ïß·µÄÒ»²¿·Ö£¬£¬£¬£¬£¬£¬ÒòÆä¹ÊÕϼ¸Âʵ͡¢Çå¾²¿É¿¿¡¢³öÏßÎÞа¶ø»ñµÃÆÕ±éÓ¦Óᣡ£¿ÉÊÇÒ»µ©³ö¹ÊÕÏ£¬£¬£¬£¬£¬£¬Ä¥Á·ÄѶȽϴó£¬£¬£¬£¬£¬£¬Î£ÏÕÐÔÒ²´ó£¬£¬£¬£¬£¬£¬Òò´ËÔÚÄ¥Á·¡¢ÊµÑéʱӦÌØÊâ¼ÓÒÔ×¢ÖØ¡£¡£   &nbs¡¤¡¤¡¤

ÍâÑóÓÐЩ¹«Ë¾Ôø½ÓÄÉ×¢Éä³ÉÐ͹¤ÒÕÉú²úÈÈËÜÐÔ¸´ºÏÖÊÁϵçÀÂÖ§¼Ü¡£¡£¸ÃÀàÖ§¼ÜÉú²ú¹¦Âʸß£¬£¬£¬£¬£¬£¬µ«È±ÏÝÊÇ×èȼÐÔ²î£¬£¬£¬£¬£¬£¬²»ÏàÒËÔÚһЩ°ë¹Ø±ÕµÄΣÏÕ³¡ºÏÔËÓÃ£¬£¬£¬£¬£¬£¬ÓÈÆäÇ·ºÃµÄÊÇÔËÓÃÒ»°ãµÄÈÈËÜÐÔËÜÁÏ»ùÌå£¬£¬£¬£¬£¬£¬ÖÆÆ·ÔÚºã¾ÃÔغÉÏ»ᱬ·¢Èä±ä¡¢Ï´¹¡¤¡¤¡¤

1¡¢±ê×¼ ±ê×¼ÊǶԿ϶¨¹æÄ£ÄÚµÄÖظ´ÐÔÊÂÎïºÍ¿´·¨Ëù×öµÄͳһ»®¶¨¡£¡£ËüÒÔ¿Æѧ¡¢ÊÖÒÕºÍʵ¼ùÂÄÀúµÄ×ÛºÏЧ¹ûΪ»ù´¡£¬£¬£¬£¬£¬£¬ÒÔ»ñµÃºÜ¼ÑÖÈÐò¡¢Ôö½øºÜ¼ÑÉç»áЧÒæΪĿµÄ£¬£¬£¬£¬£¬£¬¾­Óйط½ÃæЭÉÌÒ»Æð£¬£¬£¬£¬£¬£¬ÓÉÖ÷¹Ü»ú¹¹Åú×¼£¬£¬£¬£¬£¬£¬ÒÔÌض¨ÐÎʽ¡¤¡¤¡¤

 ×¢ËÜÄ£¹¤ÒÕÌõ¼þ:¸ÉÔï´¦Àí£ºÒ»°ã²»ÐèÒª¸ÉÔï´¦Àí¡£¡£ÈÛ»¯Î¶ȣº185~205CÄ£¾ßζȣº20~50C×¢ÉäѹÁ¦£º¿É´óµ½1500bar±£Ñ¹Ñ¹Á¦£º¿É´óµ½1000bar×¢ÉäËÙÂÊ£ºÎª·ÀÖ¹×ÊÁϽµ½â£¬£¬£¬£¬£¬£¬Ò»°ãÒªÓᤡ¤¡¤

 1¡¢Ä¸Ïß²Û·Ö½ÓÀû±ã£ºËùν²å½ÓʽĸÏß²Û£¬£¬£¬£¬£¬£¬¾ÍÊÇËüʹÓòå½ÓµÄ·½Ê½°ÑÖ÷¸ÉÏߵĵçÔ´·Ö½Óµ½Ö§ÏßÈ¥£¬£¬£¬£¬£¬£¬Òò´Ë·Ö½ÓÊ®·ÖÀû±ã¡£¡£Ô¤ÖÆ·ÖÖ§µçÀÂÆäÈõµãÊÇÒªÏò¹¤³§¶¨ÖÆ£»£»£»£»Æä·ÖÖ§ÅþÁ¬·½Ê½Ñ¡ÓÃÆô³ÝµÄ¡°C¡±Ðͱ§¹¿£¬£¬£¬£¬£¬£¬Ê±¼äÒ»¾Ã£¬£¬£¬£¬£¬£¬ÄÜ¡¤¡¤¡¤

µçÁ¦µçÀÂÓÉÓÚ³¤Ê±¼äµÄµ¼µç·¢ÈÈ£¬£¬£¬£¬£¬£¬Ëü×Ô¼º¾Í»á´øÓÐÒ×ȼÐÔ¡¢´®ÑÓÐÔ£¬£¬£¬£¬£¬£¬Ò»µ©±¬·¢»ðÔÖ£¬£¬£¬£¬£¬£¬Î£º¦ÑÏÖØ£¬£¬£¬£¬£¬£¬ÓÈÆäÊÇÔÚ·¢µç³§ºÍ´óÐͱäµçÕ¾ÄÚ£¬£¬£¬£¬£¬£¬Ò»µ©±¬·¢»ðÔÖ£¬£¬£¬£¬£¬£¬²¨¼°ÆäËû»Ø·¡£¡£ÒÔÊǵçÁ¦µçÀµķÀ»ðÊÖÒÕÊǵçÆøϵͳÕý³£ÔËÐеÄÖ÷ÒªÊÖÒÕÖ®Ò»¡£¡£µç¡¤¡¤¡¤

¹è½ºÊǹèÏ𽺵ÄÒ»ÖÖ£¬£¬£¬£¬£¬£¬ÊôÓÚµ¥×é·ÖÊÒÎÂÁò»¯µÄÒºÌåÏ𽺡£¡£Ò»µ©Ì»Â¶ÓÚ¿ÕÆøÖÐ£¬£¬£¬£¬£¬£¬ÆäÖеĹèÍéµ¥Ìå¾Í±¬·¢ËõºÏ£¬£¬£¬£¬£¬£¬ÐγÉÍø·½á¹¹£¬£¬£¬£¬£¬£¬ÏµÍ³½»Áª£¬£¬£¬£¬£¬£¬²»¿ÉÈÛ»¯ºÍÏûÈÚ£¬£¬£¬£¬£¬£¬Óе¯ÐÔ£¬£¬£¬£¬£¬£¬³ÉÏð½ºÌ¬£¬£¬£¬£¬£¬£¬Ò»ÆðÕ³ºÏÎïÌå¡£¡£Æäµ¼ÈÈÐÔ±ÈÒ»°ãµÄÏð½ºÉÔ¸ß£¬£¬£¬£¬£¬£¬Ò»µ©¹Ì»¯¡¤¡¤¡¤

1¡¢±ê×¼ ±ê×¼ÊǶԿ϶¨¹æÄ£ÄÚµÄÖظ´ÐÔÊÂÎïºÍ¿´·¨Ëù×öµÄͳһ¹æÔò¡£¡£ËüÒÔ¿Æѧ¡¢ÊÖÒÕºÍʵ¼ùÂÄÀúµÄ×ÛºÏЧ¹ûΪ»ù´¡£¬£¬£¬£¬£¬£¬ÒÔ»ñµÃºÜ¼ÑÐò´Î¡¢Ôö½øºÜ¼ÑÉç»áЧÒæΪĿµÄ£¬£¬£¬£¬£¬£¬¾­Óйط½ÃæЭÉÌÒ»Æð£¬£¬£¬£¬£¬£¬ÓÉÖ÷¹Ü»ú¹¹Åú×¼£¬£¬£¬£¬£¬£¬ÒÔÌض¨ÐÎʽ¡¤¡¤¡¤

1¡¢Ä¸Ïß²Û·Ö½ÓÀû±ã£ºËùν²å½ÓʽĸÏß²Û£¬£¬£¬£¬£¬£¬¾ÍÊÇËüʹÓòå½ÓµÄ·½Ê½°ÑÖ÷¸ÉÏߵĵçÔ´·Ö½Óµ½Ö§ÏßÈ¥£¬£¬£¬£¬£¬£¬Òò¶ø·Ö½ÓÊ®·ÖÀû±ã¡£¡£Ô¤ÖÆ·ÖÖ§µçÀÂÆäȱÏÝÊÇÒªÏò¹¤³§¶¨ÖÆ£»£»£»£»Æä·ÖÖ§ÅþÁ¬·½Ê½Ñ¡ÓÃÆô³ÝµÄ¡°C¡±Ðͱ§¹¿£¬£¬£¬£¬£¬£¬Ê±¼äÒ»¾Ã£¬£¬£¬£¬£¬£¬ÄÜ·ñÈ·±£½ô¹¿Á¦¡¤¡¤¡¤

ÔÚÐÞ½¨ÎïÄÚÀäÈÈË®ÔËËÍ¡¢ÒûÓÃË®ÔËËͼ°²ÉůϵͳµÄÓ¦ÓÃÒѳÉΪӦÓá°ÈÈÃÅ¡±£»£»£»£»Éú²ú¼°¸ñµÄPP-R¹Ü±ØÐè¶ÔÖ¤ÁϺͼ·³ö×°±¸ÓÐÑÏ¿áµÄÒªÇ󡣡£¿£¿ÉÒÔÉú²úÀäÈÈË®¹ÜµÄPPרÓÃÖÊÁÏÓÐÈýÖÖ£º¡¡¡¡1¡¢¾ù¾ÛPP¼ÓÈëÒ»¶¨Á¿µÄÔöÈÍÖú¼Á¾­¹²¡¤¡¤¡¤

£¨1£©ÓÍÏäÈÝ»ý̫С£¬£¬£¬£¬£¬£¬É¢ÈÈÃæ»ý²»·ó£¬£¬£¬£¬£¬£¬ÀäÈ´×°Öõ«ÆäÈÝÁ¿¹ýС¡£¡£ £¨2£©°´¿ì½øËÙÂÊÑ¡ÔñÓͱÃÈÝÁ¿µÄ¶¨Á¿±Ã¹©ÓÍϵͳ£¬£¬£¬£¬£¬£¬ÔÚ×÷ҵʱ»áÓд󲿷ֶàÓàµÄÁ÷Á¿ÔÚ¸ßѹÏ´ÓÒçÁ÷·§Òç»Ø¶ø·¢ÈÈ¡£¡££¨3£©ÏµÍ³ÖÐжºÉ»Ø··ºÆð¹ÊÕÏ»ò¡¤¡¤¡¤

1)²¿·Ö¼¤¹âÈ«Ï¢ÌÌÓ¡ÊÖÒÕÊǽ«¾­ÓÉÌØÊâ´¦ÀíµÄȫϢͼÏñÖ±½ÓÌÌÓ¡ÔÚ»ù²ÄÖ¸¶¨µÄλÖÃÉÏ£¬£¬£¬£¬£¬£¬Ê¹È«Ï¢Í¼ÏñÓë»ù²ÄÈÚΪһÌå£¬£¬£¬£¬£¬£¬²»¿É»®·Ö£¬£¬£¬£¬£¬£¬¾ßÓÐÈ«Ï¢·ÀαµÄËùÓÐÌØÕ÷¡£¡£ÕÉÁ¿²½·¥£ºÊÓ²ì±êʶÎﲿ·ÖΪ¼¤¹âÀØÉäͼ»­ÌØÕ÷¡£¡£2)ȫϢ˫ÊÓ½ÇͨµÀ¡¤¡¤¡¤

¹âÏË ¹âÏË(Fiber Optic Cable)ÒÔ¹âÂö³åµÄÐÎʽÀ´´«ÊäÐźÅ£¬£¬£¬£¬£¬£¬Òò¶ø²ÄÖÊÒ²ÒÔ²£Á§»òÓлú²£Á§ÎªÖ÷¡£¡£ËüÓÉÏËάо¡¢°ü²ãºÍ±£»£»£»£»¤Ì××é³É(Èçͼ7)¡£¡£ ¹âÏ˵ĽṹºÍͬÖáµçÀºÜÀàËÆ£¬£¬£¬£¬£¬£¬Ò²ÊÇ¡¤¡¤¡¤

Ë«½ÊÏß(Twisted Pair)·ÖΪÆÁÕÏ(Shielded Twisted Pair£¬£¬£¬£¬£¬£¬¼ò³ÆSTP)ºÍ·ÇÆÁÕÏ(Unshielded Twisted Pair£¬£¬£¬£¬£¬£¬¼ò³ÆUTP)(Èçͼ1)Á½ÖÖ¡£¡£ËùνµÄÆÁÕϾÍÊÇ¡¤¡¤¡¤