{"id":22276,"date":"2026-09-17T14:01:34","date_gmt":"2026-09-17T06:01:34","guid":{"rendered":"https:\/\/www.luleey.com\/?p=22276"},"modified":"2026-09-17T14:01:38","modified_gmt":"2026-09-17T06:01:38","slug":"sfp-crc-errors-with-normal-rx-power-what-to-check","status":"publish","type":"post","link":"https:\/\/www.luleey.com\/ko\/sfp-crc-errors-with-normal-rx-power-what-to-check\/","title":{"rendered":"\uc218\uc2e0 \uc804\ub825\uc774 \uc815\uc0c1\uc778\ub370\ub3c4 SFP CRC \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\ub098\uc694? \ubb34\uc5c7\uc744 \ud655\uc778\ud574\uc57c \ud560\uae4c\uc694?"},"content":{"rendered":"<p class=\"wp-block-wd-paragraph wd-618787d8\"><strong><a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ko\/tag\/sfp\/\" title=\"SFP\uc758 \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \ubcf4\uae30\">SFP<\/a> <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ko\/tag\/crc-errors\/\" title=\"CRC \uc624\ub958 \uad00\ub828 \uac8c\uc2dc\ubb3c \ubaa8\ub450 \ubcf4\uae30\">CRC \uc624\ub958<\/a><\/strong> \ub9c1\ud06c \uc0c1\ud0dc\uac00 \uc720\uc9c0\ub418\uace0 \ubcf4\uace0\ub41c \uc218\uc2e0 \uc804\ub825(RX power)\uc774 \uc815\uc0c1\uc73c\ub85c \ubcf4\uc77c \ub54c\uc5d0\ub3c4 \uc218\uc2e0 \uc804\ub825 \uac12\uc774 \uc0c1\uc2b9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ubaa8\uc21c\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc218\uc2e0 \uc804\ub825(RX power)\uc740 \ud2b8\ub79c\uc2dc\ubc84\uc5d0 \ub3c4\ub2ec\ud558\ub294 \ube5b\uc758 \ud55c \uce21\uba74\uc744 \ub098\ud0c0\ub0b4\ub294 \ubc18\uba74, \uc774\ub354\ub137 FCS\/CRC \uce74\uc6b4\ud130\ub294 \ubb34\uacb0\uc131 \uac80\uc0ac\uc5d0\uc11c \uc2e4\ud328\ud55c \uc218\uc2e0 \ud504\ub808\uc784\uc744 \ubcf4\uace0\ud569\ub2c8\ub2e4. \ub450 \uce21\uc815\uac12 \uc911 \uc5b4\ub290 \ud558\ub098\ub9cc\uc73c\ub85c\ub294 \uad11 \ubaa8\ub4c8\uc758 \uacb0\ud568\uc744 \ud655\uc778\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8bb20372\">\uc624\ub958\uac00 \uc99d\uac00\ud558\uace0 \uc788\ub294 \uc218\uc2e0 \uc778\ud130\ud398\uc774\uc2a4\ubd80\ud130 \uc2dc\uc791\ud558\uc2ed\uc2dc\uc624. \ub9c1\ud06c\uc758 \uc591\ucabd \ub05d\uc744 \ubaa8\ub450 \ud655\uc778\ud558\uace0, \ub3d9\uc77c\ud55c \uc2dc\uac04 \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc5b4\ub5a4 \ubcc0\ud654\uac00 \ubc1c\uc0dd\ud558\ub294\uc9c0 \uae30\ub85d\ud55c \ub2e4\uc74c, \uad6c\uc131 \uc694\uc18c\ub97c \ud558\ub098\uc529 \ubd84\ub9ac\ud558\uc5ec \uc810\uac80\ud558\uc2ed\uc2dc\uc624. \uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 \uad11\ud559 \ubc29\uc2dd\uc758 \uc9c0\uc810 \uac04 \uc774\ub354\ub137 SFP\/<a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ko\/tag\/sfp-2\/\" title=\"SFP+\uc758 \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \ubcf4\uae30\">SFP+<\/a> \ub9c1\ud06c \uc218\uc774\uba70, PON ONU \ub4f1\ub85d \uce74\uc6b4\ud130\uac00 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-wd-image wd-block-image wd-b3c83959\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" class=\"wp-image-22279\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero.png\" alt=\"\" title=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero.png 1000w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-hero-150x150.png 150w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-656e21e9\">SFP CRC \uc624\ub958: \uc624\ub958\uac00 \uc0c8\ub85c \ubc1c\uc0dd\ud55c \uac83\uc774\uba70 \uc218\uc2e0\ub41c \uac83\uc784\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-92da8730\">\uba3c\uc800, \uc0ac\uc6a9 \uc911\uc778 \uc2a4\uc704\uce58\ub098 NIC\uc5d0 \ub300\ud55c \uc815\ud655\ud55c \uce74\uc6b4\ud130 \uc815\uc758\ub97c \ucc3e\uc544\ubcf4\uc138\uc694. \uc81c\uc870\uc5c5\uccb4\uc5d0 \ub530\ub77c \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\uc2dc\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <code>CRC<\/code>, <code>FCS<\/code>, <code>CRC\/Align<\/code>, <code>\uc785\ub825 \uc624\ub958<\/code> \uadf8\ub9ac\uace0 <code>\ud3d0\uae30<\/code> \ubcc4\ub3c4\uc758 \ud544\ub4dc\ub098 \uc9d1\uacc4\uac12\uc73c\ub85c \ud45c\uc2dc\ub429\ub2c8\ub2e4. \uc5ec\uae30\uc11c \uc99d\uac00\ud558\ub294 FCS\/CRC \uc218\uc2e0 \uce74\uc6b4\ud130\uac00 \uc720\uc6a9\ud55c \ub2e8\uc11c\uac00 \ub429\ub2c8\ub2e4. \uacfc\uac70 \ub204\uc801\uac12\uc774 \ubcc0\ud558\uc9c0 \uc54a\ub294\ub2e4\uace0 \ud574\uc11c \ud604\uc7ac \uc624\ub958\uac00 \uc788\ub2e4\ub294 \uc99d\uac70\ub294 \uc544\ub2d9\ub2c8\ub2e4. \ub2e8\uc21c\ud788 \ub370\uc774\ud130\uac00 \ubc84\ub824\uc84c\ub2e4\uace0 \ud574\uc11c \ud504\ub808\uc784 \uc190\uc0c1\uc774 \ubc1c\uc0dd\ud588\ub2e4\uace0 \ub2e8\uc815\ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-025edafd\">\uc601\ud5a5\uc744 \ubc1b\uc740 \ud3ec\ud2b8\uc640 \uc0c1\ub300\ucabd \ud3ec\ud2b8\uc5d0 \ub300\ud55c \uae30\uc900\uac12\uc744 \uae30\ub85d\ud574 \ub450\uc2ed\uc2dc\uc624. \uc2dc\uac04, \ud2b8\ub798\ud53d \uc218\uc900, \ub9c1\ud06c \uc774\ubca4\ud2b8, \ud604\uc7ac \uce74\uc6b4\ud130 \uac12 \ubc0f \ube44\uc2b7\ud55c \uc2dc\uac04\uc774 \uc9c0\ub09c \ud6c4\uc758 \ubcc0\ud654\ub97c \uae30\ub85d\ud574 \ub450\uc2ed\uc2dc\uc624. \uc2b9\uc778 \uc5c6\uc774 \uc6b4\uc601\uc6a9 \uce74\uc6b4\ud130\ub97c \uc7ac\uc124\uc815\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. <\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-986374c7\">\ubd88\ub7c9 \ud504\ub808\uc784\uc758 \ubc29\ud5a5\uc744 \ub530\ub77c\uac00\uc138\uc694<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0ae55c51\">\uac04\ub2e8\ud55c \ub4c0\ud50c\ub809\uc2a4 \ub9c1\ud06c\uc5d0\uc11c, \ub2e4\uc74c \uc0c1\ud669\uc5d0\uc11c \uac00\uc7a5 \uba3c\uc800 \ud655\uc778\ud574\uc57c \ud560 \uacbd\ub85c\ub294 <strong>B\ud300\uc740 FCS\uc758 \ubc18\uaca9\uc744 \ubc1b\uc544<\/strong> \uc99d\uac00\ud558\ub294 \uac83\uc740 <strong>A\uc758 \uc1a1\uc2e0\uae30 \u2192 A\uc5d0\uc11c B\ub85c \uc774\uc5b4\uc9c0\ub294 \uad11\uc12c\uc720 \uacbd\ub85c \u2192 B\uc758 \uc218\uc2e0\uae30 \ubc0f \ud638\uc2a4\ud2b8 \ud3ec\ud2b8<\/strong>. \uadf8\ub7f0 \ub2e4\uc74c \ubc18\ub300 \ubc29\ud5a5\ub3c4 \ubcc4\ub3c4\ub85c \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uc774\ub807\uac8c \ud558\uba74 \ud14c\uc2a4\ud2b8 \ubc94\uc704\ub97c \uc881\ud790 \uc218\ub294 \uc788\uc9c0\ub9cc, \uc5b4\ub5a4 \ubd80\ud488\uc774 \uacb0\ud568\uc774 \uc788\ub294\uc9c0\ub294 \uc99d\uba85\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc1a1\uc2e0\uae30, \uc5f0\uacb0\ubd80, \uad11\uc12c\uc720, \uc218\uc2e0 \uad11\ud559 \ubd80\ud488 \ub610\ub294 \ud638\uc2a4\ud2b8 \uce21 \ud68c\ub85c \ub4f1 \ubaa8\ub450 \uacb0\ud568\uc758 \uc6d0\uc778\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-47123f89\">B \uce21\uc5d0\uc11c\ub9cc \uc0c8\ub85c\uc6b4 \uc218\uc2e0 \uc624\ub958\uac00 \ubcf4\uace0\ub418\ub294 \uacbd\uc6b0, \ub450 \ubaa8\ub4c8\uacfc \ub450 \ud328\uce58 \ucf00\uc774\ube14\uc744 \ud55c\uaebc\ubc88\uc5d0 \uad50\uccb4\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uc591\ucabd \ub05d\ub2e8 \ubaa8\ub450\uc5d0\uc11c \uc624\ub958\uac00 \ubcf4\uace0\ub418\ub294 \uacbd\uc6b0, \uc591\ubc29\ud5a5 \uc5f0\uacb0\uc744 \uc810\uac80\ud558\uace0 \uc628\ub3c4, \uc804\uc6d0, \uad6c\uc131 \ub610\ub294 \ucd5c\uadfc\uc758 \uad11\uc12c\uc720 \uc791\uc5c5\uacfc \uac19\uc740 \uacf5\ud1b5\uc801\uc778 \ubcc0\uacbd \uc0ac\ud56d\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \ub9c1\ud06c \ub9ac\uc14b\uc744 \ucd94\uc801\ud558\uace0, \uc9c0\uc6d0\ub418\ub294 \uacbd\uc6b0 FCS\uc640 \ud568\uaed8 \uc2ec\ubcfc\/PCS \uc624\ub958\ub3c4 \ud568\uaed8 \ucd94\uc801\ud558\uc2ed\uc2dc\uc624. \ubaa8\ub4e0 \uc624\ub958 \uce74\uc6b4\ud130\ub97c \uc11c\ub85c \ub300\uccb4 \uac00\ub2a5\ud55c \uac83\uc73c\ub85c \uac04\uc8fc\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-d8819dc0\">\uc77c\ubc18 RX \uc804\ub825\uc774 \ub9c1\ud06c\ub97c \ucd08\uae30\ud654\ud558\uc9c0 \ubabb\ud558\ub294 \uc774\uc720<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f75ff261\">\uac01 \uc218\uc2e0\uae30\uc758 \uad11\ud559 \uce21\uc815\uac12\uc744 \ub2e4\uc74c\uc758 \uac12\uacfc \ube44\uad50\ud558\uc2ed\uc2dc\uc624. <strong>\ud574\ub2f9 \ubaa8\ub4c8 \ubc0f \ubaa8\ub4dc\uc5d0 \ub300\ud55c \ucd5c\uc18c \ubc0f \ucd5c\ub300 \uc791\ub3d9 \uc785\ub825\uac12<\/strong>, \uc774\ub97c \ud1b5\ud574 \uc9c4\ub2e8 \uc815\ud655\ub3c4\uc640 \uc791\ub3d9 \uc870\uac74\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub300\uc2dc\ubcf4\ub4dc\uc758 \ub179\uc0c9 \uc544\uc774\ucf58\uc774\ub098 \uc77c\ubc18\uc801\uc778 dBm \uac12\ub9cc\uc73c\ub85c\ub294 \ud569\uaca9 \uc5ec\ubd80\ub97c \ud310\ub2e8\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc6d0\uaca9 \uc1a1\uc2e0\uae30\uc640 \ub85c\uceec \uc218\uc2e0\uae30\uc758 \ubc29\ud5a5\uc774 \ub3d9\uc77c\ud55c\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \ubaa8\ub4c8 \uc790\uccb4\uc758 TX \ubc0f RX \uac12\uc740 \uc11c\ub85c \ubc18\ub300 \ubc29\ud5a5\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0d1dbfa7\"><a href=\"https:\/\/members.snia.org\/document\/dl\/25916\" target=\"_blank\" rel=\"noopener\">SFF-8472<\/a> \ud638\ud658 \uac00\ub2a5\ud55c \ubaa8\ub4c8\uc5d0 \ub300\ud55c \uc9c4\ub2e8 \ud544\ub4dc\ub97c \uc9c0\uc815\ud558\uace0, RX \uac12\uc774 \ud3c9\uade0 \uc218\uc2e0\uac12\uc744 \ub098\ud0c0\ub0b4\ub294\uc9c0 \uc5ec\ubd80\ub97c \uad6c\ubd84\ud569\ub2c8\ub2e4. <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ko\/tag\/optical-power\/\" title=\"\u2018\uad11 \ucd9c\ub825\u2019 \uce74\ud14c\uace0\ub9ac\uc758 \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \ubcf4\uae30\">\uad11 \ucd9c\ub825<\/a> \ub610\ub294 \uad11 \ubcc0\uc870 \uc9c4\ud3ed(OMA). \uc774 \uc9c4\ub2e8 \uce21\uc815\uac12\uc740 \uc774\ub354\ub137 \ud504\ub808\uc784 \uc624\ub958 \ud14c\uc2a4\ud2b8\uac00 \uc544\ub2d9\ub2c8\ub2e4. \ub610\ud55c \uce21\uc815\uac12 \uc0ac\uc774\uc758 \uc77c\uc2dc\uc801\uc778 \uc2e0\ud638 \uc7a5\uc560, \ubc18\uc0ac, \uc5f0\uacb0\ubd80\uc758 \uc190\uc0c1\uc774\ub098 \uc624\uc5fc, \ub610\ub294 \ud638\uc2a4\ud2b8 \uce21 \ubb38\uc81c\ub97c \ubc30\uc81c\ud560 \uc218\ub3c4 \uc5c6\uc2b5\ub2c8\ub2e4. LuLeey\uc758 <a href=\"https:\/\/www.luleey.com\/ko\/what-is-ddm-dom-in-sfp-transceivers\/\">DDM\/DOM \ud604\uc7a5 \uc548\ub0b4\uc11c<\/a> \ud754\ud788 \ubcf4\uace0\ub418\ub294 5\uac00\uc9c0 \ubaa8\ub2c8\ud130 \uce21\uc815\uac12\uc5d0 \ub300\ud574.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6d8e3e3a\">\ubc18\ub300\ub85c, \uc608\uc0c1\uce58 \ubabb\ud558\uac8c \uac15\ud55c \uc2e0\ud638\ub294 \uc218\uc2e0\uae30\uc758 \uc9c0\uc815\ub41c \ucd5c\ub300 \uc791\ub3d9 \ud55c\ub3c4\ub97c \ucd08\uacfc\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. LuLeey\uc758 <a href=\"https:\/\/www.luleey.com\/ko\/sfp-receiver-overload-can-optical-power-be-too-high\/\">\uc218\uc2e0\uae30 \uacfc\ubd80\ud558 \uc548\ub0b4\uc11c<\/a> \uc1a1\uc2e0\uae30, \uacbd\ub85c \uc190\uc2e4 \ubc0f \uc218\uc2e0\uae30\uc758 \uc815\ud655\ud55c \ud55c\uacc4\ub97c \ube44\uad50\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. <strong>CRC \uc624\ub958\ub9cc\uc73c\ub85c\ub294 \uacfc\ubd80\ud558\ub97c \uc785\uc99d\ud560 \uc218 \uc5c6\ub2e4<\/strong>; \uc784\uc758\uc758 \uac10\uc1e0\uae30\ub97c \ucd94\uac00\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<div class=\"wp-block-wd-image wd-block-image wd-03aeebb1\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" class=\"wp-image-22278\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist.png\" alt=\"\" title=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist.png 1000w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/sfp-crc-errors-checklist-150x150.png 150w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-1810ced9\">5\ub2e8\uacc4 \uccb4\uacc4\uc801 \uc810\uac80 \uc808\ucc28<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\uc2e4\uc81c \ub9c1\ud06c\ub97c \uae30\ub85d\ud558\uc138\uc694.<\/strong> \ud638\uc2a4\ud2b8 \ubaa8\ub378 \ubc0f \ud3ec\ud2b8, \uad11\ud559 \ubd80\ud488 \ubc88\ud638 \ubc0f \uac1c\uc815\ud310, \ubaa8\ub4c8 \ucf54\ub529, \ud638\uc2a4\ud2b8 ASIC\/PHY\/SerDes \ubaa8\ub4dc, \ud38c\uc6e8\uc5b4, \ub4dc\ub77c\uc774\ubc84, \ud3ec\ud2b8 \uad6c\uc131, \uc2e4\uc81c \uc791\ub3d9 \uc18d\ub3c4 \ubc0f \uc911\uac04 \ud328\uce58 \ud328\ub110\uc744 \ubaa8\ub450 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. SFP \ub610\ub294 SFP+ \ub77c\ubca8\uacfc \uba85\uc2dc\ub41c \ubaa8\ub4c8 \uc18d\ub3c4\ub9cc\uc73c\ub85c\ub294 \ud638\ud658\uc131\uc774\ub098 \ub2ec\uc131\ub41c \ucc98\ub9ac\ub7c9\uc744 \ud655\uc778\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud0c0\uc784\uc2a4\ud0ec\ud504\uac00 \ud3ec\ud568\ub41c \ub450 \uc2a4\ub0c5\uc0f7\uc744 \ube44\uad50\ud569\ub2c8\ub2e4.<\/strong> \uc218\uc2e0 FCS\/CRC, \uae30\ud0c0 \uc624\ub958 \uce74\uc6b4\ud130, \ub9c1\ud06c \uc774\ubca4\ud2b8 \ub4f1\uc744 \uc800\uc7a5\ud558\uace0, <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ko\/tag\/ddm\/\" title=\"DDM\uc758 \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \ubcf4\uae30\">DDM<\/a> \uc591\ucabd \ub05d\ub2e8\uc758 RX\/TX \ud310\ub3c5\uac12, \uc628\ub3c4 \ubc0f \ud2b8\ub798\ud53d. \uc5b4\ub5a4 \uc218\uc2e0 \ubc29\ud5a5\uc774 \ud45c\uc2dc\ub418\ub294\uc9c0 \uacb0\uc815\ud558\uc2ed\uc2dc\uc624. <em>\uc0c8<\/em> \uc624\ub958.<\/li>\n\n\n\n<li><strong>\uc0ac\uc6a9\ud560 \uad11\ud559 \uc7a5\uce58\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/strong> \uc77c\uce58\ud558\ub294 \uad11\uc12c\uc720 \uc720\ud615, \ud30c\uc7a5 \ubc0f \uc1a1\uc2e0\/\uc218\uc2e0 \ud398\uc5b4\ub9c1\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uc5ec\uae30\uc5d0\ub294 BiDi \uad11\ud559 \uc18c\uc790\uc758 \uc0c1\ud638 \ubcf4\uc644 \ud30c\uc7a5\ub3c4 \ud3ec\ud568\ub429\ub2c8\ub2e4. \uc815\ud655\ud55c \uc1a1\uc2e0\uae30 \ubc94\uc704\uc640 \uc218\uc2e0\uae30\uc758 \ucd5c\uc18c\/\ucd5c\ub300 \uac12\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. <strong>\uac01 \ubc29\ud5a5<\/strong>. \uc0c1\ud55c \uc791\ub3d9 \ud55c\uacc4\uac00 \uba85\uc2dc\ub418\uc5b4 \uc788\uc9c0 \uc54a\uc740 \uacbd\uc6b0, \uc804\uccb4 \ub370\uc774\ud130 \uc2dc\ud2b8\ub97c \uc694\uccad\ud558\uc2ed\uc2dc\uc624. \uc9e7\uc740 \ud14c\uc2a4\ud2b8 \ud328\uce58\uac00 \uc548\uc804\ud558\ub2e4\uace0 \uac00\uc815\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/li>\n\n\n\n<li><strong>\uad50\uccb4\ud558\uae30 \uc804\uc5d0 \uc810\uac80\ud558\uc2ed\uc2dc\uc624.<\/strong> \ub124\ud2b8\uc6cc\ud06c \uc18c\uc720\uc790\uac00 \uc2b9\uc778\ud55c \uc11c\ube44\uc2a4 \uc808\ucc28\uc5d0 \ub530\ub77c, \uc811\uadfc \uac00\ub2a5\ud55c \ucee4\ub125\ud130\ub97c \uc810\uac80 \ubc0f \uccad\uc18c\ud558\uace0, \uad6c\ubd80\ub7ec\uc9c0\uac70\ub098 \ubcc0\ud615\ub41c \ud328\uce58 \ucf00\uc774\ube14\uc744 \ubc14\ub85c\uc7a1\uc73c\uba70, \uc9c0\uc815\ub41c \ucee4\ub125\ud130 \uc5f0\ub9c8 \uae30\uc900\uc744 \uc900\uc218\ud574\uc57c \ud569\ub2c8\ub2e4. <a href=\"https:\/\/foa.org\/tech\/ref\/testing\/test\/scope.html\" target=\"_blank\" rel=\"noopener\">\uad11\uc12c\uc720 \ud611\ud68c\uc758 \ucee4\ub125\ud130 \uac00\uc774\ub4dc<\/a> \uc624\uc5fc\uacfc \ubc18\uc0ac\uc728\uc774 \uc65c \uc911\uc694\ud55c\uc9c0 \uc124\uba85\ud569\ub2c8\ub2e4. \uad11 \ud3ec\ud2b8\ub098 \uad11\uc12c\uc720\ub97c \uc808\ub300 \ub4e4\uc5ec\ub2e4\ubcf4\uc9c0 \ub9d0\uace0, \uc804\uc6d0\uc774 \uacf5\uae09\ub41c \uacbd\ub85c\ub97c \uc5f4 \ub54c\ub294 \uc11c\ube44\uc2a4 \uc911\ub2e8\uc5d0 \ub300\ube44\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud55c \ud56d\ubaa9\uc744 \ubcc0\uacbd\ud55c \ub2e4\uc74c \uc774 \uacfc\uc815\uc744 \ubc18\ubcf5\ud558\uc138\uc694.<\/strong> \uae30\uc874 \uc124\uc815\uc744 \uae30\ub85d\ud55c \ud6c4, \uc720\uc9c0\ubcf4\uc218 \uc2dc\uac04\ub300\uc5d0 \uc815\uc0c1 \uc791\ub3d9\uc774 \ud655\uc778\ub418\uace0 \uc0ac\uc591\uc774 \uc815\ud655\ud55c \ud328\uce58 \ucf00\uc774\ube14 \ub610\ub294 \ubaa8\ub4c8 \ud558\ub098\ub97c \uad50\uccb4\ud558\uc2ed\uc2dc\uc624. RX \uc791\ub3d9 \ud55c\uacc4\uce58\ub97c \ub2e4\uc2dc \ud655\uc778\ud558\uc2ed\uc2dc\uc624. <em>~\uc804\uc5d0<\/em> \uae34 \uad11 \uacbd\ub85c\ub97c \ub2e8\ucd95\ud569\ub2c8\ub2e4. \uc720\uc0ac\ud55c \ud2b8\ub798\ud53d\uc744 \ub2e4\uc2dc \uc2e4\ud589\ud558\uace0 \ub2e4\uc74c\uc744 \ube44\uad50\ud569\ub2c8\ub2e4. <strong>\uc99d\uac00<\/strong> \uc601\ud5a5\uc744 \ubc1b\uc740 \uc218\uc2e0\uae30\uc758 FCS \uce74\uc6b4\ud130 \ub0b4\uc5d0\uc11c, \ub2e8\uc21c\ud788 \ub204\uc801 \ud569\uacc4\uac00 0\uc774 \uc544\ub2cc\uc9c0 \uc5ec\ubd80\ubfd0\ub9cc \uc544\ub2c8\ub77c. \uc2b9\uc778\ub41c \uc808\ucc28\uc5d0 \ub530\ub77c \ubcc0\uacbd \uc0ac\ud56d\uc744 \ubcf5\uc6d0\ud558\uac70\ub098 \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fa89a425\">\ub2e4\ub978 \ubaa8\ub4e0 \uc694\uc18c\uac00 \uc81c\uc5b4\ub41c \uc0c1\ud0dc\uc5d0\uc11c \ud2b9\uc815 \uad11 \ubaa8\ub4c8\uc774 \uac80\uc99d\ub41c \ub2e4\ub978 \ud3ec\ud2b8\ub85c \uc774\ub3d9\ud588\uc744 \ub54c \uc624\ub958\uac00 \uadf8 \uad11 \ubaa8\ub4c8\uc744 \ub530\ub77c\uc628\ub2e4\uba74, \uc774\ub294 \uad11 \ubaa8\ub4c8 \uac00\uc124\uc744 \ub4b7\ubc1b\uce68\ud558\ub294 \uc99d\uac70\uac00 \ub429\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ud638\uc2a4\ud2b8 \uc124\uc815\uacfc \uad11\ud559\uc801 \uc870\uac74\uc744 \ud655\uc778\ud574 \ubcfc \uac00\uce58\ub294 \uc788\uc2b5\ub2c8\ub2e4. \uc624\ub958\uac00 \ud2b9\uc815 \uc218\uc2e0\uae30 \ud3ec\ud2b8\uc5d0\uc11c \uacc4\uc18d \ubc1c\uc0dd\ud55c\ub2e4\uba74, \ud638\uc2a4\ud2b8 \ud3ec\ud2b8\ub098 \ud574\ub2f9 \uad6c\uc131\uc744 \uc870\uc0ac\ud574\uc57c \ud569\ub2c8\ub2e4. \ud2b9\uc815 \uad11\uc12c\uc720 \uad6c\uac04\uc5d0\uc11c \uc624\ub958\uac00 \uc9c0\uc18d\ub41c\ub2e4\uba74, \ud574\ub2f9 \uad6c\uac04\uacfc \uc885\ub2e8 \ucc98\ub9ac\ub97c \uc810\uac80\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \uc6d0\uc778\uc744 \uc881\ud788\ub294 \ub2e8\uc11c\uc77c \ubfd0, \uc808\ub300\uc801\uc778 \uacb0\ub860\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-83192086\">LuLeey\uc5d0 \uc81c\ud488 \uad50\ud658 \ub610\ub294 \ud638\ud658\uc131 \ud655\uc778\uc744 \uc694\uccad\ud560 \ub54c<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b9f4827a\">\uc608\ub97c \ub4e4\uc5b4, LuLeey\uc758 <a href=\"https:\/\/www.luleey.com\/ko\/product\/10gbase-lr-10g-sfp-transceiver-module-ll-sfp-10g-lr\/\">LL-SFP-10G-LR \uc81c\ud488 \ud398\uc774\uc9c0<\/a> 1310 nm, \ub2e8\uc77c\ubaa8\ub4dc \uad11\uc12c\uc720\uc6a9 \ub4c0\ud50c\ub809\uc2a4 LC \uc778\ud130\ud398\uc774\uc2a4, \uba85\uc2dc\ub41c 10 km \uc804\uc1a1 \uac70\ub9ac \ubc0f DDM\/DOM\uc744 \ub098\uc5f4\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud398\uc774\uc9c0\uc5d0\ub294 \uc218\uc2e0\uae30 \uac10\ub3c4 \ud56d\ubaa9\uc774 \uac8c\uc7ac\ub418\uc5b4 \uc788\uc9c0\ub9cc <strong>\uc218\uc2e0\uae30 \uacfc\ubd80\ud558\/\ucd5c\ub300 \uc791\ub3d9 \uc785\ub825 \uac12\uc744 \uacf5\uac1c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4<\/strong>. \ud574\ub2f9 \ud398\uc774\uc9c0\ub9cc\uc73c\ub85c\ub294 \uac10\uc1e0 \uc124\uc815\uc774\ub098 \uc9e7\uc740 \uc9c1\uc811 \ud14c\uc2a4\ud2b8 \uacbd\ub85c\ub97c \uc2b9\uc778\ud558\uae30\uc5d0\ub294 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uadf8 \ud398\uc774\uc9c0\uc5d0 \uba85\uc2dc\ub41c \ub2e4\uc911 \ube0c\ub79c\ub4dc \ud638\ud658\uc131 \uad00\ub828 \ubb38\uad6c\ub294 \ud2b9\uc815 \ud638\uc2a4\ud2b8\/\ud38c\uc6e8\uc5b4 \uc870\ud569\uc5d0 \ub300\ud55c \uc99d\uac70\uac00 \ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7b2130c7\">\uc815\ud655\ud55c \ud638\uc2a4\ud2b8 \ubc0f \uad11\ud559 \ubd80\ud488 \ubc84\uc804, \uc591\ubc29\ud5a5 \uce74\uc6b4\ud130 \ub378\ud0c0 \ubc0f DDM \uce21\uc815\uac12, \uac00\ub2a5\ud55c \uacbd\uc6b0 \uce21\uc815\ub41c \uad11\ud559 \uac12, \uad11\uc12c\uc720 \ud1a0\ud3f4\ub85c\uc9c0, \ucee4\ub125\ud130 \uc720\ud615, \ud38c\uc6e8\uc5b4\/\ub4dc\ub77c\uc774\ubc84, \ud3ec\ud2b8 \uc124\uc815 \ubc0f \uad00\uce21\ub41c \ub9c1\ud06c \uc18d\ub3c4\ub97c \ubcf4\ub0b4\uc8fc\uc2ed\uc2dc\uc624. \uc774\ub807\uac8c \ud558\uba74 LuLeey\uac00 \ucee4\ub125\ud130 \ubaa8\uc591\ub9cc \ubcf4\uace0 \ucd94\uce21\ud558\ub294 \ub300\uc2e0, \uad6c\uccb4\uc801\uc778 \uad50\uccb4 \ubd80\ud488\uc744 \ud655\uc778\ud560 \uc218 \uc788\ub294 \ucda9\ubd84\ud55c \uc815\ubcf4\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-5e83a9a3\"><strong>\ub2e4\uc74c \ub2e8\uacc4:<\/strong> \uc591\ucabd \ub05d\uc5d0\uc11c \ub450 \ubc88\uc758 \uc2dc\uac04\ubcc4 \uc2a4\ub0c5\uc0f7\uc744 \ucc0d\uc2b5\ub2c8\ub2e4. \ub9cc\uc57d \uc0c8\ub85c\uc6b4 <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ko\/tag\/fcs-errors\/\" title=\"FCS \uc624\ub958 \uad00\ub828 \uac8c\uc2dc\ubb3c \ubaa8\ub450 \ubcf4\uae30\">FCS \uc624\ub958<\/a> \ud655\uc778\ub418\uba74, \uc218\uc2e0 \ubc29\ud5a5\uc744 \ud30c\uc545\ud558\uace0, \ud574\ub2f9 \uc218\uc2e0\uae30\uc758 <em>\uc644\ub8cc<\/em> \uc791\ub3d9 \ucc3d\uc5d0\uc11c \uad00\ub828 \uacbd\ub85c\ub97c \uc810\uac80\ud558\uace0, \uc7ac\uc2dc\ud5d8 \uc804\uc5d0 \uc2b9\uc778\ub41c \uad6c\uc131 \uc694\uc18c \uc911 \ud558\ub098\ub9cc \uad50\uccb4\ud558\uc2ed\uc2dc\uc624.<\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":22279,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1077],"tags":[69,1659,444,1660,1391,1423,71],"class_list":["post-22276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-problem-cases","tag-sfp","tag-crc-errors","tag-ddm","tag-fcs-errors","tag-fiber-troubleshooting","tag-optical-power","tag-sfp-2"],"_links":{"self":[{"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/posts\/22276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/comments?post=22276"}],"version-history":[{"count":1,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/posts\/22276\/revisions"}],"predecessor-version":[{"id":22280,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/posts\/22276\/revisions\/22280"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/media\/22279"}],"wp:attachment":[{"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/media?parent=22276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/categories?post=22276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luleey.com\/ko\/wp-json\/wp\/v2\/tags?post=22276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}