{"id":5257,"date":"2025-09-02T00:00:00","date_gmt":"2025-09-02T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/troubleshoot-optical-transceivers-digital-diagnostic-monitoring\/"},"modified":"2026-06-22T07:54:35","modified_gmt":"2026-06-22T07:54:35","slug":"troubleshoot-optical-transceivers-digital-diagnostic-monitoring","status":"publish","type":"post","link":"https:\/\/resources.l-p.com\/ko\/knowledge-center\/troubleshoot-optical-transceivers-digital-diagnostic-monitoring","title":{"rendered":"\uad11 \ubaa8\ub4c8\uc758 \ub514\uc9c0\ud138 \uc9c4\ub2e8 \ubaa8\ub2c8\ud130\ub9c1(DDM): \uc885\ud569 FAQ"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8.webp\" alt=\"How to troubleshoot optical transceivers using Digital Diagnostic Monitoring\" class=\"wp-image-3602\" srcset=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8.webp 1200w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-300x178.webp 300w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-1024x608.webp 1024w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-768x456.webp 768w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc218\uc2e0 \uc804\ub825 (Rx Power):<\/strong>, \ub294 <strong>\uc740 \uc1a1\uc218\uc2e0 \uc804\ub825, \uc628\ub3c4, \uc804\uc555\uc5d0 \ub300\ud55c \uc2e4\uc2dc\uac04 \uc9c4\ub2e8 \uc815\ubcf4\ub97c \uc81c\uacf5\ud558\uba70, \ud1b5\uc2e0\uc0ac\uc5c5\uc790 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/strong>, ,\uc740 \ud604\ub300\ud615 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/a>. \uc774\ub97c \ud1b5\ud574 \uc911\uc694\ud55c \uc6b4\uc601 \ub9e4\uac1c\ubcc0\uc218\ub97c \uc2e4\uc2dc\uac04\uc73c\ub85c \ubaa8\ub2c8\ud130\ub9c1\ud558\uc5ec \ub124\ud2b8\uc6cc\ud06c \uc131\ub2a5\uc744 \uc720\uc9c0\ud558\uace0, \uace0\uc7a5\uc744 \uc870\uae30\uc5d0 \ud0d0\uc9c0\ud558\uba70, \ubb38\uc81c \ud574\uacb0\uc744 \uac04\uc18c\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798\ub294 DDM\uc5d0 \uad00\ud55c \uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38\uacfc \ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac\uc790\ub97c \uc704\ud55c \uc2e4\uc6a9\uc801\uc778 \uac00\uc774\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q1: \ub514\uc9c0\ud138 \uc9c4\ub2e8 \ubaa8\ub2c8\ud130\ub9c1(DDM)\uc774\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> DDM\uc740 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84(SFP, SFP+, QSFP \ub4f1)\uc5d0 \uad6c\ud604\ub41c \ud45c\uc900\ud654\ub41c \uc778\ud130\ud398\uc774\uc2a4\ub85c, \ub2e4\uc74c\uacfc \uac19\uc740 \ud575\uc2ec \ub9e4\uac1c\ubcc0\uc218\uc5d0 \ub300\ud55c \uc2e4\uc2dc\uac04 \uc811\uadfc\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uc628\ub3c4<\/strong> \u2013 \uc7a5\uce58 \uc791\ub3d9 \uc628\ub3c4\ub97c \ubaa8\ub2c8\ud130\ub9c1\ud569\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\u2013 \uad11 \ubaa8\ub4c8\uc774 \uc548\uc815\uc801\uc778 \uc804\ub825\uc744 \ubc1b\ub3c4\ub85d \ubcf4\uc7a5\ud558\uba70, \ud3b8\ucc28\ub294 \uc804\uae30 \ubb38\uc81c\ub97c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/strong> \u2013 \ubaa8\ub4c8\uc5d0 \uacf5\uae09\ub418\ub294 \uc804\ub825\uc744 \ucd94\uc801\ud569\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\u2013 \ub808\uc774\uc800 \ub2e4\uc774\uc624\ub4dc\ub97c \uad6c\ub3d9\ud558\ub294 \uc804\ub958\ub97c \ubaa8\ub2c8\ud130\ub9c1\ud558\uc5ec \ub178\ud6c4\ud654\ub098 \uc784\ubc15\ud55c \uace0\uc7a5\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/strong> \u2013 \ub808\uc774\uc800 \ub2e4\uc774\uc624\ub4dc\uc758 \uad6c\ub3d9 \uc804\ub958\ub97c \uce21\uc815\ud569\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\uc1a1\uc2e0(TX) \ucd9c\ub825 \uc804\ub825<\/strong> \u2013 \uad11 \ucd9c\ub825 \uc804\ub825\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud569\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\uc218\uc2e0(RX) \ucd9c\ub825 \uc804\ub825<\/strong> \u2013 \uc720\uc785 \uad11 \uc2e0\ud638 \uac15\ub3c4\ub97c \uce21\uc815\ud569\ub2c8\ub2e4.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DDM\uc740 \uc0ac\uc804 \uc608\ubc29\uc801 \ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac\ub97c \uac00\ub2a5\ud558\uac8c \ud558\uc5ec \uac00\ub3d9 \uc911\ub2e8 \uc2dc\uac04\uc744 \uc904\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q2: \uc65c DDM\uc774 \uc911\uc694\ud55c\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/ko\/glossary\/ddm-dom-in-optical-transceivers\/\">DDM<\/a> \uc740 \ub124\ud2b8\uc6cc\ud06c \uc2e0\ub8b0\uc131 \ubc0f \uc6b4\uc601 \ud6a8\uc728\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>\ubaa8\ub4e0 \uc2dc\uac04 \ub3d9\uc548 \ub0b4\ubd80 \uc0c1\ud0dc \uba54\ud2b8\ub9ad\uc774 \ud56d\uc0c1 \uc774\uc6a9 \uac00\ub2a5\ud558\ubbc0\ub85c, \ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac\uc790\ub294 \uacfc\uc5f4\uc774\ub098 \uc2e0\ud638 \uac10\uc18c\uc640 \uac19\uc740 \ucd08\uae30 \uace0\uc7a5 \uc9d5\ud6c4\ub97c \uc0ac\uc804\uc5d0 \uc2dd\ubcc4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/strong> \u2013 \uacfc\uc5f4 \ub610\ub294 \uc2e0\ud638 \uc800\ud558\uc640 \uac19\uc740 \uc7a0\uc7ac\uc801 \ubb38\uc81c\uc5d0 \ub300\ud55c \uc870\uae30 \uacbd\uace0\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\uac04\uc18c\ud654\ub41c \ubb38\uc81c \ud574\uacb0<\/strong> \u2013 \uace0\uc7a5\ub09c \ud2b8\ub79c\uc2a4\uc2dc\ubc84\ub97c \uc2e0\uc18d\ud788 \uc2dd\ubcc4\ud558\uace0 \uaca9\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\uac1c\uc120\ub41c \ub124\ud2b8\uc6cc\ud06c \uc131\ub2a5<\/strong> \u2013 \uc9c0\uc18d\uc801\uc778 \ubaa8\ub2c8\ud130\ub9c1\uc744 \ud1b5\ud574 \ucd5c\uc801\uc758 \uc791\ub3d9 \uc0c1\ud0dc\ub97c \ubcf4\uc7a5\ud558\uace0 \uc608\uae30\uce58 \uc54a\uc740 \uace0\uc7a5\uc744 \uc904\uc785\ub2c8\ub2e4.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q3: DDM \uc9c0\uc6d0 \uad11 \ubaa8\ub4c8\uacfc \uc77c\ubc18 \uad11 \ubaa8\ub4c8\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> \uc77c\ubc18 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\ub294 \uc0c1\uc138\ud55c \uc0c1\ud0dc \uc815\ubcf4 \uc5c6\uc774 \uad11 \uc2e0\ud638\ub9cc \uc1a1\uc218\uc2e0\ud569\ub2c8\ub2e4. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">DDM \uc9c0\uc6d0 \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/a>, \uadf8\ub7ec\ub098 \uc628\ub3c4, \uc804\uc555, \ub808\uc774\uc800 \ubc14\uc774\uc5b4\uc2a4 \uc804\ub958, TX \ucd9c\ub825 \uc804\ub825, RX \ucd9c\ub825 \uc804\ub825 \ub4f1 \uc8fc\uc694 \uc6b4\uc601 \ub9e4\uac1c\ubcc0\uc218\ub97c \uc2e4\uc2dc\uac04\uc73c\ub85c \ubaa8\ub2c8\ud130\ub9c1\ud558\uace0 \ubcf4\uace0\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc0ac\uc804 \uace0\uc7a5 \ud0d0\uc9c0 \ubc0f \ub124\ud2b8\uc6cc\ud06c \uc131\ub2a5 \ucd5c\uc801\ud654\uac00 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q4: \uad6c\ub9e4 \uc804\uc5d0 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uac00 DDM\uc744 \uc9c0\uc6d0\ud558\ub294\uc9c0 \ud655\uc778\ud558\ub824\uba74 \uc5b4\ub5bb\uac8c \ud574\uc57c \ud558\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> DDM \uc9c0\uc6d0 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\ub824\uba74:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uc81c\ud488 \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0\uc11c \u201cDDM\u201d \ub610\ub294 \u201cDOM\u201d \uc9c0\uc6d0 \uc5ec\ubd80\ub97c \ud655\uc778\ud569\ub2c8\ub2e4.<\/p><\/li><li><p>\ud655\uc778\ud558\uc2ed\uc2dc\uc624 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/ko\/knowledge-center\/sfp-8472-standard-explained-ddm-for-optical-transceivers\/\">SFF-8472 \ud638\ud658\uc131<\/a>.<\/p><\/li><li><p>\uacf5\uae09\uc5c5\uccb4 \uc0ac\uc591(\uc608: <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\ub124\ud2b8\uc6cc\ud06c \uacf5\uae09\uc5c5\uccb4\ub294<\/a>, )\uc744 \ucc38\uc870\ud558\uc5ec \uba85\uc2dc\uc801\uc73c\ub85c DDM \uae30\ub2a5\uc744 \ub098\ud0c0\ub0b4\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705<\/strong> Q5: SFP, SFP+ \ub610\ub294 QSFP \ubaa8\ub4c8\uc5d0\uc11c DDM \ub370\uc774\ud130\ub97c \uc5b4\ub5bb\uac8c \uc77d\uc744 \uc218 \uc788\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> DDM \ub370\uc774\ud130\ub294 SFF-8472 \ud45c\uc900\uc744 \uc900\uc218\ud558\ub294 2\uc120\uc2dd I\u00b2C \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud1b5\ud574 \uc811\uadfc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ub370\uc774\ud130\ub294 \ub2e4\uc74c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc77d\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\uba85\ub839\uc904 \uc778\ud130\ud398\uc774\uc2a4(CLI)<\/strong> \uc2a4\uc704\uce58 \ub610\ub294 \ub77c\uc6b0\ud130\uc5d0\uc11c.<\/p><\/li><li><p><strong>\ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac \uc2dc\uc2a4\ud15c(NMS)<\/strong> \uc911\uc559 \uc9d1\uc911\uc2dd \ubaa8\ub2c8\ud130\ub9c1\uc744 \uc704\ud574.<\/p><\/li><li><p>\ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uc81c\uc870\uc0ac\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uc804\ubb38 \ubaa8\ub2c8\ud130\ub9c1 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \ub610\ub294 \uc9c4\ub2e8 \ub3c4\uad6c.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q6: DDM \ub9e4\uac1c\ubcc0\uc218\uac00 \uc784\uacc4\uac12\uc744 \ucd08\uacfc\ud558\uba74 \uc5b4\ub5bb\uac8c \ud574\uc57c \ud558\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> \ubaa8\ub2c8\ud130\ub9c1\ub41c \uac12\uc774 \uc548\uc804\ud55c \uc784\uacc4\uac12\uc744 \ucd08\uacfc\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c \uc0ac\ud56d\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ub9c1\ud06c \uc0c1\ud0dc \ubc0f \uc778\ud130\ud398\uc774\uc2a4 \ud65c\ub3d9\uc744 \uc810\uac80\ud569\ub2c8\ub2e4 <strong>\ud658\uacbd \uc870\uac74<\/strong> (\uc628\ub3c4, \uacf5\uae30 \ud750\ub984).<\/p><\/li><li><p>\uc548\uc815\uc801\uc778 <strong>\uc804\uc6d0 \uacf5\uae09<\/strong> \uc7a5\uce58\uc5d0 \ub300\ud55c \ubcf4\uc7a5.<\/p><\/li><li><p><strong>\uc9c0\uc18d\uc801\uc778 \uc624\ub958\uac00 \ub098\ud0c0\ub098\ub294 \uacbd\uc6b0<\/strong> \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uad50\uccb4.<br\/>\uc2e0\uc18d\ud55c \ub300\uc751\uc740 \ub124\ud2b8\uc6cc\ud06c \ub2e4\uc6b4\ud0c0\uc784 \ubc0f \uc7a0\uc7ac\uc801 \ud558\ub4dc\uc6e8\uc5b4 \uc190\uc0c1\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q7: \ube44\uc815\uc0c1\uc801\uc778 DDM \ub370\uc774\ud130\uac00 \ub124\ud2b8\uc6cc\ud06c \uc911\ub2e8\uc744 \uc720\ubc1c\ud569\ub2c8\uae4c?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A: DDM \uc790\uccb4\ub294 \ub124\ud2b8\uc6cc\ud06c \ub2e4\uc6b4\ud0c0\uc784\uc744 \uc720\ubc1c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. DDM\uc740 \ub2e8\uc9c0 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc758 \uc0c1\ud0dc\ub9cc \ubcf4\uace0\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc9c0\uc18d\uc801\uc73c\ub85c \ube44\uc815\uc0c1\uc801\uc778 \uac12\uc774 \ub098\ud0c0\ub09c\ub2e4\uba74, \uc774\ub97c \ubc29\uce58\ud560 \uacbd\uc6b0 \uc131\ub2a5 \uc800\ud558 \ub610\ub294 \ub124\ud2b8\uc6cc\ud06c \uc7a5\uc560\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\ub294 \ud558\ub4dc\uc6e8\uc5b4 \ubb38\uc81c\ub97c \uc2dc\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q8: DDM\uc73c\ub85c \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uace0\uc7a5\uc744 \uc608\uce21\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> DDM\uc740 \uace0\uc7a5\uc744 \uc808\ub300\uc801\uc73c\ub85c \uc608\uce21\ud560 \uc218\ub294 \uc5c6\uc9c0\ub9cc, \ub2e4\uc74c\uacfc \uac19\uc740 \ucd94\uc138\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4: <strong>\uc0c1\uc2b9\ud558\ub294 \uc628\ub3c4<\/strong>, <strong>\uac10\uc18c\ud558\ub294 TX \ucd9c\ub825 \uc804\ub825<\/strong>, \ub610\ub294 <strong>\ube44\uc815\uc0c1\uc801\uc778 \ub808\uc774\uc800 \uc804\ub958<\/strong> \uc774\ub7ec\ud55c \ucd94\uc138\ub294 \uc7a0\uc7ac\uc801 \ubb38\uc81c\ub97c \ub098\ud0c0\ub0b4\uba70, DDM \ub370\uc774\ud130 \uae30\ubc18\uc758 \uc120\uc81c\uc801 \uc720\uc9c0\ubcf4\uc218\ub294 \ub124\ud2b8\uc6cc\ud06c \uc2e0\ub8b0\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q9: DDM \ub370\uc774\ud130\ub97c NMS\ub97c \ud1b5\ud574 \uc911\uc559 \uc9d1\uc911\uc2dd\uc73c\ub85c \ubaa8\ub2c8\ud130\ub9c1\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> \uc608. \uc5ec\ub7ec \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc758 DDM \ub370\uc774\ud130\ub97c \uc218\uc9d1\ud558\uace0 <strong>\ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac \uc2dc\uc2a4\ud15c(NMS)<\/strong>. \uc5d0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub300\uaddc\ubaa8 \ub124\ud2b8\uc6cc\ud06c \uc804\uccb4\uc5d0 \uac78\uccd0 \uc911\uc559 \uc9d1\uc911\uc2dd \ubaa8\ub2c8\ud130\ub9c1, \ucd94\uc138 \ubd84\uc11d \ubc0f \uc7a0\uc7ac\uc801 \uace0\uc7a5\uc5d0 \ub300\ud55c \uc870\uae30 \uacbd\uace0\uac00 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705<\/strong>Q10: DDM\uc774 \ub300\uaddc\ubaa8 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \uc5b4\ub5bb\uac8c \ub3c4\uc6c0\uc774 \ub418\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> \ub300\uaddc\ubaa8 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c\ub294 \uc218\ub3d9 \uc810\uac80\uc774 \uc2e4\uc6a9\uc801\uc774\uc9c0 \uc54a\uc73c\ubbc0\ub85c, DDM\uc744 \ud1b5\ud574 \uc218\ubc31 \uac1c\uc5d0\uc11c \uc218\ucc9c \uac1c\uc5d0 \uc774\ub974\ub294 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\ub97c \uc2e4\uc2dc\uac04\uc73c\ub85c \uc6d0\uaca9 \ubaa8\ub2c8\ud130\ub9c1\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \ub124\ud2b8\uc6cc\ud06c \uc6b4\uc601\uc790\uac00 \ub192\uc740 \uc131\ub2a5\uc744 \uc720\uc9c0\ud558\uace0 \uc720\uc9c0\ubcf4\uc218 \ube44\uc6a9\uc744 \uc904\uc774\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>Q11: DDM\uc774 \uc2e4\uc81c \ubaa8\ub2c8\ud130\ub9c1 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc640 \uc5b4\ub5bb\uac8c \uc5f0\ub3d9\ub418\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> \uc2e4\uc81c\uc801\uc778 \uc774\uc810\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc758 \uc9c0\uc18d\uc801\uc778 \uac74\uac15 \uc0c1\ud0dc \ubaa8\ub2c8\ud130\ub9c1.<\/p><\/li><li><p>\uc131\ub2a5 \ucd94\uc138\ub97c \uc2dd\ubcc4\ud568\uc73c\ub85c\uc368 \uc608\uce21 \uc815\ube44\ub97c \uc218\ud589.<\/p><\/li><li><p>\ube60\ub978 \uc7a5\uc560 \uaca9\ub9ac \ubc0f \uc2e4\ud328\ud55c \ubaa8\ub4c8\uc758 \uad50\uccb4.<\/p><\/li><li><p>\ub124\ud2b8\uc6cc\ud06c \uc2e0\ub8b0\uc131 \ubc0f \uac00\ub3d9 \uc2dc\uac04 \ud5a5\uc0c1.<br\/>\uc2e4\uc81c \uc0ac\ub840\uc5d0\uc11c \uc6b4\uc601\uc790\uac00 DDM \uae30\ubc18 \ubaa8\ub2c8\ud130\ub9c1 \uc2dc\uc2a4\ud15c\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubb38\uc81c \ud574\uacb0 \uc2dc\uac04\uc744 \ucd5c\ub300 40% \ub2e8\ucd95\uc2dc\ucf30\uc2b5\ub2c8\ub2e4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\uacb0\ub860:<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc218\uc2e0 \uc804\ub825 (Rx Power):<\/strong> <em>DDM<\/em>\uc740 \ud604\ub300 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc5d0\uc11c \ud544\uc218\uc801\uc778 \uae30\ub2a5\uc73c\ub85c, \uc2e4\uc2dc\uac04 \ubaa8\ub2c8\ud130\ub9c1, \uc608\ubc29\uc801 \uc720\uc9c0\ubcf4\uc218, \uac04\ud3b8\ud55c \ubb38\uc81c \ud574\uacb0\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. DDM\uc740 SFP, SFP+, QSFP \ubc0f \uae30\ud0c0 \uace0\uc18d \ubaa8\ub4c8 \uc804\ubc18\uc5d0 \uac78\uccd0 \ub124\ud2b8\uc6cc\ud06c \uc2e0\ub8b0\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. <a href=\"#\">\ud0d0\uc0c9\ud558\uae30<\/a> <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">LINK-PP\uc758 DDM \uae30\ub2a5 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/a> \uace0\ud488\uc9c8\uc758 \uc644\uc804 \ubaa8\ub2c8\ud130\ub9c1 \ubaa8\ub4c8\uc744 \uc704\ud574.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ucc38\uace0 \uc790\ub8cc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/ko\/glossary\/ddm-dom-in-optical-transceivers\/\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc5d0\uc11c \ub514\uc9c0\ud138 \ubaa8\ub2c8\ud130\ub9c1\uc758 \uc911\uc694\uc131<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/ko\/knowledge-center\/common-optical-transceiver-failures-and-solutions\/\">\uc77c\ubc18\uc801\uc778 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \ubb38\uc81c \ubc0f \ud574\uacb0 \ubc29\ubc95<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/ko\/knowledge-center\/how-optical-transceivers-transmit-data\/\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc5d0\uc11c\uc758 \ub370\uc774\ud130 \uc804\uc1a1 \uacfc\uc815<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/ko\/overview-of-optical-transceivers\/\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uae30\uc220\uc5d0 \ub300\ud55c \uc2ec\uce35 \uc548\ub0b4\uc11c<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/ko\/knowledge-center\/optical-transceiver-performance-tests\/\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc758 \ucd5c\uc801 \uc131\ub2a5 \uc720\uc9c0\ub97c \uc704\ud55c \ud301<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\ub514\uc9c0\ud138 \uc9c4\ub2e8 \ubaa8\ub2c8\ud130\ub9c1(DDM)\uc744 \ud1b5\ud574 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uc758 \ubb38\uc81c\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \ud574\uacb0\ud558\uc138\uc694. \uc2e4\uc2dc\uac04 \ub370\uc774\ud130\ub97c \ubaa8\ub2c8\ud130\ub9c1\ud558\uc5ec \uc870\uae30\uc5d0 \uacb0\ud568\uc744 \ud0d0\uc9c0\ud558\uace0 \ub124\ud2b8\uc6cc\ud06c \uc2e0\ub8b0\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/p>","protected":false},"author":1,"featured_media":5256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/posts\/5257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/comments?post=5257"}],"version-history":[{"count":4,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/posts\/5257\/revisions"}],"predecessor-version":[{"id":11196,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/posts\/5257\/revisions\/11196"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/media\/5256"}],"wp:attachment":[{"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/media?parent=5257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/categories?post=5257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resources.l-p.com\/ko\/wp-json\/wp\/v2\/tags?post=5257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}