{"id":4850,"date":"2025-09-27T11:12:00","date_gmt":"2025-09-27T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/importance-of-extinction-ratio-in-optical-transceivers\/"},"modified":"2026-06-22T06:40:10","modified_gmt":"2026-06-22T06:40:10","slug":"importance-of-extinction-ratio-in-optical-transceivers","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/importance-of-extinction-ratio-in-optical-transceivers","title":{"rendered":"\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc5d0\uc11c \uc18c\uba78\ube44(ER)\uc758 \uc911\uc694\uc131"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u2666 \uc18c\uac1c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uad11\ud1b5\uc2e0\uc5d0\uc11c \uc131\ub2a5\uc740 \ud3c9\uade0 \ubc1c\uc0ac \uc804\ub825 \ub610\ub294 \ud30c\uc7a5 \uc548\uc815\uc131\ubfd0\ub9cc \uc544\ub2c8\ub77c <strong>\uad11 \uc2e0\ud638 \uc790\uccb4\uc758 \uc120\uba85\ub3c4\uc5d0\ub3c4 \uc758\uc874\ud569\ub2c8\ub2e4.<\/strong>. \uc774 \uc120\uba85\ub3c4\ub97c \uacb0\uc815\ud558\ub294 \uac00\uc7a5 \uc911\uc694\ud55c \ud30c\ub77c\ubbf8\ud130 \uc911 \ud558\ub098\ub294 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/extinction-ratio-importance-signal-quality-data-reliability\/\"><strong>\uc18c\uba78\ube44(ER)<\/strong><\/a>. \uc18c\uba78\ube44(Extinction Ratio, ER)\uc785\ub2c8\ub2e4. \uc18c\uba78\ube44\ub294 \uad11 \uc1a1\uc2e0\uae30\uc758 \u201con\u201d \uc0c1\ud0dc(\ub17c\ub9ac 1)\uc640 \u201coff\u201d \uc0c1\ud0dc(\ub17c\ub9ac 0)\uac00 \uc5bc\ub9c8\ub098 \uba85\ud655\ud558\uac8c \uad6c\ubd84\ub418\ub294\uc9c0\ub97c \uc815\uc758\ud558\uba70, \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc5d0\uc11c \uc2e0\ud638 \ud488\uc9c8\uc744 \uc9c1\uc811\uc801\uc73c\ub85c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2666 \uc18c\uba78\ube44(ER)\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc18c\uba78\ube44(ER)\ub294 \uc1a1\uc2e0\uae30\uac00 <strong>\ub17c\ub9ac 1 \uc0c1\ud0dc\uc77c \ub54c\uc758 \uad11 \ucd9c\ub825(P\u2081)<\/strong> \ub300\ube44 <strong>\ub17c\ub9ac 0 \uc0c1\ud0dc\uc77c \ub54c\uc758 \uad11 \ucd9c\ub825(P\u2080)\uc758 \ube44\uc728\uc785\ub2c8\ub2e4.<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"207\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc18549774ac44039b70d93839eeba9d-1024x207.webp\" alt=\"What is the Extinction Ratio (ER)?\" class=\"wp-image-4847\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc18549774ac44039b70d93839eeba9d-1024x207.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc18549774ac44039b70d93839eeba9d-300x61.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc18549774ac44039b70d93839eeba9d-768x156.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc18549774ac44039b70d93839eeba9d-18x4.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc18549774ac44039b70d93839eeba9d.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ub192\uc740 ER:<\/strong> \u201con\u201d\uacfc \u201coff\u201d \uc0ac\uc774\uc758 \ub300\ube44\uac00 \uac15\ud574 \uc2e0\ud638 \uac80\ucd9c\uc774 \uc6a9\uc774\ud574\uc9d1\ub2c8\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>\ub0ae\uc740 ER:<\/strong> \ub300\ube44\uac00 \uc57d\ud574 \ube44\ud2b8\ub97c \uad6c\ubd84\ud558\uae30 \uc5b4\ub824\uc6cc\uc9d1\ub2c8\ub2e4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u2666 \uad11 \ubaa8\ub4c8\uc5d0\uc11c ER\uc774 \uc911\uc694\ud55c \uc774\uc720<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\uc218\uc2e0\uae30 \uac10\ub3c4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub192\uc740 ER\uc740 <strong>\uc218\uc2e0\uae30\uac00 \ub17c\ub9ac \uc0c1\ud0dc\ub97c \uad6c\ubd84\ud558\ub294 \ub2a5\ub825\uc744 \ud5a5\uc0c1\uc2dc\ucf1c<\/strong>, \uc218\uc2e0\uae30 \uac10\ub3c4\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \ub0ae\uc740 ER\uc740 <strong>\uad11 \ubcc0\uc870 \uc9c4\ud3ed(OMA)\uc744 \uc791\uac8c \ub9cc\ub4e4\uba70,<\/strong>, \uc774\ub85c \uc778\ud574 \uc218\uc2e0\uae30\uac00 \uc218\uc2e0\ub41c \ub370\uc774\ud130\ub97c \uc62c\ubc14\ub974\uac8c \ud574\uc11d\ud558\uae30 \uc5b4\ub824\uc6cc\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/understanding-what-is-bit-error-rate\/\">\ube44\ud2b8 \uc624\ub958\uc728(BER)\uc758 \uc0c1\uc2b9\uc744 \ucd08\ub798\ud558\ub294 \uc8fc\uc694 \uc6d0\uc778\uc785\ub2c8\ub2e4.<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0ae\uc740 ER\uc740 \ube44\ud2b8 \uc624\uc778\uc2dd \uac00\ub2a5\uc131\uc744 \ub192\uc5ec \ub354 \ub192\uc740 \ube44\ud2b8 \uc624\ub958\uc728(BER)\uc744 \uc720\ubc1c\ud569\ub2c8\ub2e4. \ucda9\ubd84\ud55c ER\uc740 \uc7a5\uac70\ub9ac \ub610\ub294 \uace0\uc18d \ub9c1\ud06c\uc5d0\uc11c \uc624\ub958 \uc5c6\ub294 \uc804\uc1a1\uc744 \ubcf4\uc7a5\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc2dc\uc2a4\ud15c \uc2e0\ub8b0\uc131<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\ub300 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c\ub294 \uad11 \ubaa8\ub4c8\uc774 10G, 25G, 100G \ub610\ub294 \uc2ec\uc9c0\uc5b4 400G \uc774\ub354\ub137\uc5d0 \uc0ac\uc6a9\ub418\ubbc0\ub85c, \uc801\uc808\ud55c ER\uc744 \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc2dc\uc2a4\ud15c\uc758 \uc7a5\uae30\uc801 \uc2e0\ub8b0\uc131 \ubc0f \uc131\ub2a5 \uc548\uc815\uc131 \ud655\ubcf4\uc5d0 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2666 \uc77c\ubc18\uc801\uc778 \uc18c\uba78\ube44(ER) \uc694\uad6c \uc0ac\uc591<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 297px;\"\/><col style=\"width: 199px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"297\"><p>\uad11 \ubaa8\ub4c8 \uc720\ud615<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"199\"><p>ER \uc694\uad6c \uc0ac\uc591<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\ud45c\uc900 \ucc38\uc870<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"297\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475605.htm\"><strong>10GBASE-LR<\/strong><\/a><strong> (\ub2e8\uc77c\ubaa8\ub4dc\uad11\uc12c\uc720(SMF), 10km)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"199\"><p>\u2265 <strong>5 dB<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>IEEE 802.3ae<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"297\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476054.htm\"><strong>\uc2f1\uae00\ubaa8\ub4dc \uad11\uc12c\uc720\ub294 \ud655\uc7a5\ub41c \uc804\ub2ec \uac70\ub9ac\uc640 \uc548\uc815\uc801\uc778 \uc2e0\ud638 \uc804\uc1a1\uc774 \uc694\uad6c\ub418\ub294 \ud1b5\uc2e0\ub9dd, \uba54\ud2b8\ub85c \ub124\ud2b8\uc6cc\ud06c \ubc0f \uc7a5\uac70\ub9ac \uae30\uc5c5 \ubc31\ubcf8 \uc5f0\uacb0\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc801\uc6a9\ub429\ub2c8\ub2e4.<\/strong><\/a><strong> (\ub2e8\uc77c\ubaa8\ub4dc\uad11\uc12c\uc720(SMF), 40km)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"199\"><p>\u2265 <strong>0 dB<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>IEEE 802.3ae<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"297\"><p><strong>10G DWDM \/<br> <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475855.htm\"><strong>ZR<\/strong><\/a><strong> (\ub2e8\uc77c\ubaa8\ub4dc\uad11\uc12c\uc720(SMF), \uc57d 80km)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"199\"><p>\u2265 <strong>2 dB<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>ITU-T G.959.1 \/ MSA<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"297\"><p><strong>25G \/ 100G \/ 400G PAM4 \ubaa8\ub4c8<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"199\"><p><strong>\uc678\ubd80 ER \uba85\uc2dc<\/strong> (\uc57d 3.5\u20134 dB \uc77c\ubc18\uc801)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>IEEE 802.3bm\/bs\/cd<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udccc \ucc38\uace0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>LINK-PP<\/strong>, \ubaa8\ub4e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/a> \uc740 IEEE \ubc0f ITU \ud45c\uc900\uc744 \uc900\uc218\ud558\uc5ec \uc81c\uc870 \ubc0f \ud14c\uc2a4\ud2b8\ub429\ub2c8\ub2e4. <strong>\uc18c\uba78\ube44(ER)<\/strong>, OMA, \uac10\ub3c4 \ub4f1 \ud30c\ub77c\ubbf8\ud130\ub294 <strong>\uc5c4\uaca9\ud788 \uac80\uc99d\ub418\uba70<\/strong> \uc81c\ud488\uc758 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/file\/datasheet\/ls-sm5510-40i.pdf\">\ub370\uc774\ud130\uc2dc\ud2b8 \ubc0f \ub3c4\uba74\uc5d0 \uba85\ud655\ud788 \ud45c\uc2dc\ub429\ub2c8\ub2e4.<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2666 ER \uce21\uc815 \ubc0f \ud574\uc11d \ubc29\ubc95<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ER\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub808\uc774\uc800\uac00 \uc815\uaca9 \uc18d\ub3c4\ub85c \ub370\uc774\ud130\ub97c \uc1a1\uc2e0\ud560 \ub54c \uc624\uc2e4\ub85c\uc2a4\ucf54\ud504\ub85c \uce21\uc815\ud569\ub2c8\ub2e4. \uce21\uc815\uac12\uc740 \ubaa8\ub4c8 \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0 \uba85\uc2dc\ub41c \ucd5c\uc18c \uc694\uad6c \uc0ac\uc591\uacfc \ube44\uad50\ub429\ub2c8\ub2e4. ER\uc740 <strong>\ud3c9\uade0 \ucd9c\ub825 \uc804\ub825 \ubc0f OMA\uc640 \ud568\uaed8 \ud574\uc11d\ud574\uc57c \ud558\uba70,<\/strong>, \uc774\ub4e4 \ud30c\ub77c\ubbf8\ud130\ub294 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uc804\uccb4 \uc131\ub2a5\uc744 \uc815\uc758\ud558\ub294 \ub370 \uacf5\ub3d9\uc73c\ub85c \uc791\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2666 LINK-PP \uad11 \ubaa8\ub4c8\uc758 \uc18c\uba78\ube44(ER)<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/987d7a902633408b92fe4c5ebcce0f31.webp\" alt=\"LINK-PP Optical Modules\" class=\"wp-image-4848\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/987d7a902633408b92fe4c5ebcce0f31.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/987d7a902633408b92fe4c5ebcce0f31-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/987d7a902633408b92fe4c5ebcce0f31-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/987d7a902633408b92fe4c5ebcce0f31-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/987d7a902633408b92fe4c5ebcce0f31-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP\ub294 \uad11\ubc94\uc704\ud55c \uc81c\ud488\uad70\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">SFP \ubaa8\ub4c8<\/a> LINK-PP \uad11 \ubaa8\ub4c8\uc740 IEEE 802.3\uacfc \uac19\uc740 \uad6d\uc81c \ud45c\uc900\uc744 \ucda9\uc871\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uac01 \ubaa8\ub4c8\uc758 \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0\ub294 \ucd5c\uc18c ER \uac12\uc774 \uba85\uc2dc\ub418\uc5b4 \uc788\uc5b4, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/what-is-a-data-center\/\">\ub370\uc774\ud130 \uc13c\ud130<\/a>, 5G \ub124\ud2b8\uc6cc\ud06c \ubc0f \ud1b5\uc2e0 \uc778\ud504\ub77c \ub4f1 \uc5c4\uaca9\ud55c \uc694\uad6c \uc0ac\uc591\uc744 \uac16\ucd98 \uc751\uc6a9 \ubd84\uc57c\uc640\uc758 \ud638\ud658\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ub2e8\uac70\ub9ac SFP \ubaa8\ub4c8<\/strong> \ube44\uc6a9 \ud6a8\uc728\uc801\uc774\uace0 \uace0\ud6a8\uc728\uc758 LAN \uc751\uc6a9 \ubd84\uc57c\ub97c \uc704\ud574 ER\uacfc \ucd9c\ub825 \uc804\ub825\uc744 \uade0\ud615 \uc788\uac8c \uc870\uc815\ud569\ub2c8\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>\uc7a5\uac70\ub9ac DWDM \ubaa8\ub4c8<\/strong> \ub2e4\uc911\ud654 \ucc44\ub110 \uac04 \uc2e0\ud638 \ubb34\uacb0\uc131\uc744 \uc720\uc9c0\ud558\uae30 \uc704\ud574 \ub192\uc740 ER \uac12\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u2666 \uacb0\ub860<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"highlight\">The<\/span> <strong>\uc18c\uba78\ube44(ER)<\/strong> ER\uc740 \ub2e8\uc21c\ud55c \ub370\uc774\ud130\uc2dc\ud2b8 \uc0c1\uc758 \uc0ac\uc591\uc774 \uc544\ub2c8\ub77c, <strong>\uc218\uc2e0\uae30 \uac10\ub3c4, \ube44\ud2b8 \uc624\ub958\uc728(BER), \uc804\ubc18\uc801\uc778 \uc2dc\uc2a4\ud15c \uc2e0\ub8b0\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \ud575\uc2ec \uc131\ub2a5 \uc9c0\ud45c\uc785\ub2c8\ub2e4.<\/strong>. \uad11 \ubaa8\ub4c8\uc744 \uc120\ud0dd\ud560 \ub54c \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \ud3c9\uade0 \ubc1c\uc0ac \uc804\ub825, OMA, \uc218\uc2e0\uae30 \uac10\ub3c4\uc640 \ud568\uaed8 ER\uc744 \ubc18\ub4dc\uc2dc \uace0\ub824\ud574\uc57c \ud558\uba70, \uc774\ub97c \ud1b5\ud574 \uacac\uace0\ud55c \ub124\ud2b8\uc6cc\ud06c \uc131\ub2a5\uc744 \ud655\ubcf4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP \ub9c8\uadf8\ub124\ud2f1\uc2a4\uc640 \ud568\uaed8 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubcf8 \uc139\uc158\uc5d0\uc11c\ub294 \uace0\ub824\ud574\uc57c \ud560 \uc8fc\uc694 \uc694\uc18c\ub97c \uac15\uc870\ud569\ub2c8\ub2e4.<\/a>, \uace0\uac1d\uc740 \uc0b0\uc5c5 \ud45c\uc900\uc744 \ucda9\uc871\ud558\uac70\ub098 \ucd08\uacfc\ud558\ub294 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 ER \uac12\uc744 \uae30\ub300\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \uace0\uc18d \ubc0f \uc784\ubb34 \uc911\uc2ec \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c \uc624\ub958 \uc5c6\ub294 \ud1b5\uc2e0\uc744 \uc720\uc9c0\ud558\ub294 \ub370 \uae30\uc5ec\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc5d0\uc11c \uc18c\uba78\ube44(ER)\uac00 \uc65c \uc911\uc694\ud55c\uc9c0 \uc54c\uc544\ubcf4\uc138\uc694. \uc18c\uba78\ube44(ER)\uac00 \uc218\uc2e0\uae30 \uac10\ub3c4, \ube44\ud2b8 \uc624\ub958\uc728(BER), \ubaa8\ub4c8 \uc131\ub2a5\uc5d0 \uc5b4\ub5bb\uac8c \uc601\ud5a5\uc744 \ubbf8\uce58\ub294\uc9c0 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