{"id":4105,"date":"2026-06-19T20:59:55","date_gmt":"2026-06-19T17:59:55","guid":{"rendered":"https:\/\/arctos.gr\/?p=4105"},"modified":"2026-06-19T21:00:27","modified_gmt":"2026-06-19T18:00:27","slug":"dbm-db-optikes-ines","status":"publish","type":"post","link":"https:\/\/arctos.gr\/en\/dbm-db-optikes-ines\/","title":{"rendered":"dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2: \u03c4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03c0\u03ce\u03c2 \u03c4\u03b1 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-1200x1200.png\" alt=\"dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2 \u03bc\u03b5 Optical Power Meter\" class=\"wp-image-4106\" srcset=\"https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-1200x1200.png 1200w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-650x650.png 650w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-350x350.png 350w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-768x768.png 768w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-12x12.png 12w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-450x450.png 450w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-600x600.png 600w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-100x100.png 100w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos-50x50.png 50w, https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos.png 1254w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption class=\"wp-element-caption\">\u03a4\u03b1 dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd, \u03b5\u03bd\u03ce \u03c4\u03b1 dB \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03ae \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03af\u03bd\u03b1.<\/figcaption><\/figure>\n\n\n\n<p>\u03a4\u03b1 <strong>dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2<\/strong> \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03ac\u03b3\u03bc\u03b1\u03c4\u03b1. \u03a4\u03bf dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd \u03c0\u03bf\u03c5 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf, \u03b5\u03bd\u03ce \u03c4\u03bf dB \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03ae \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b4\u03cd\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03b1. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03bd\u03b1 \u03be\u03b5\u03c7\u03c9\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03ac \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03b5\u03af \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03bc\u03b9\u03b1 \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 -18 dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c3\u03c4\u03ac\u03b8\u03bc\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2. \u0391\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b1, \u03bc\u03b9\u03b1 \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 2,5 dB \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03ae \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae. \u03a0\u03b1\u03c1\u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b4\u03cd\u03bf \u03bc\u03bf\u03bd\u03ac\u03b4\u03b5\u03c2 \u03bc\u03bf\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd, \u03b4\u03b5\u03bd \u03b4\u03af\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b1.<\/p>\n\n\n\n<p>\u03a3\u03b5 \u03b1\u03c5\u03c4\u03cc\u03bd \u03c4\u03bf\u03bd \u03bf\u03b4\u03b7\u03b3\u03cc \u03b8\u03b1 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03c4\u03b1 dBm \u03ba\u03b1\u03b9 dB, \u03c0\u03ce\u03c2 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2, \u03c0\u03ce\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03b9\u03b1 \u03bb\u03ac\u03b8\u03b7 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c6\u03b5\u03cd\u03b3\u03b5\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 FTTH.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0393\u03c1\u03ae\u03b3\u03bf\u03c1\u03b7 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7: \u03c0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 dBm \u03ba\u03b1\u03b9 dB;<\/h2>\n\n\n\n<ul>\n<li><strong>dBm:<\/strong> \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b9\u03c3\u03c7\u03cd \u03bc\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c4\u03bf 1 mW.<\/li>\n\n\n\n<li><strong>dB:<\/strong> \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b1, \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b4\u03cd\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2.<\/li>\n\n\n\n<li><strong>\u03a0\u03b9\u03bf \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc dBm:<\/strong> \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c3\u03b8\u03b5\u03bd\u03ad\u03c3\u03c4\u03b5\u03c1\u03bf \u03c3\u03ae\u03bc\u03b1.<\/li>\n\n\n\n<li><strong>\u039c\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB:<\/strong> \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03c7\u03ac\u03bd\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b9\u03c3\u03c7\u03cd.<\/li>\n<\/ul>\n\n\n\n<p>\u0386\u03c1\u03b1, \u03c4\u03bf -10 dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03c3\u03ae\u03bc\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf -20 dBm. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03ac \u03c4\u03bf\u03c5\u03c2 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b1 10 dB, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03ad\u03c7\u03b5\u03b9 \u03b4\u03b5\u03ba\u03b1\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 dBm \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2;<\/h2>\n\n\n\n<p>\u03a4\u03bf dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b9\u03c3\u03c7\u03cd \u03ba\u03b1\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c9\u03c2 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c4\u03bf 1 milliwatt. \u03a3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1, \u03b7 \u03c4\u03b9\u03bc\u03ae 0 dBm \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af \u03c3\u03b5 1 mW \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2.<\/p>\n\n\n\n<p>\u038c\u03c4\u03b1\u03bd \u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03c0\u03ad\u03c3\u03b5\u03b9 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc 1 mW, \u03c4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae. \u0393\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc, \u03bf\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03bf\u03af \u03b2\u03bb\u03ad\u03c0\u03bf\u03c5\u03bd \u03c3\u03c5\u03c7\u03bd\u03ac \u03b5\u03bd\u03b4\u03b5\u03af\u03be\u03b5\u03b9\u03c2 \u03cc\u03c0\u03c9\u03c2 -5 dBm, -15 dBm \u03ae -25 dBm \u03c3\u03b5 \u03ad\u03bd\u03b1 Optical Power Meter.<\/p>\n\n\n\n<p>\u0397 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae \u03c3\u03c7\u03ad\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9:<\/p>\n\n\n\n<p><code>dBm = 10 \u00d7 log10(P \u03c3\u03b5 mW)<\/code><\/p>\n\n\n\n<p>\u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03c1\u03bf\u03c6\u03b1, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03ad\u03c8\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 dBm \u03c3\u03b5 mW \u03bc\u03b5 \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7:<\/p>\n\n\n\n<p><code>P \u03c3\u03b5 mW = 10^(dBm \/ 10)<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a7\u03c1\u03ae\u03c3\u03b9\u03bc\u03b1 \u03c0\u03b1\u03c1\u03b1\u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 dBm<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u0399\u03c3\u03c7\u03cd\u03c2 \u03c3\u03b5 dBm<\/th><th>\u0399\u03c3\u03c7\u03cd\u03c2 \u03c3\u03b5 mW<\/th><th>\u0399\u03c3\u03c7\u03cd\u03c2 \u03c3\u03b5 \u03bcW<\/th><\/tr><\/thead><tbody><tr><td>0 dBm<\/td><td>1 mW<\/td><td>1.000 \u03bcW<\/td><\/tr><tr><td>-3 dBm<\/td><td>\u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 0,5 mW<\/td><td>\u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 500 \u03bcW<\/td><\/tr><tr><td>-10 dBm<\/td><td>0,1 mW<\/td><td>100 \u03bcW<\/td><\/tr><tr><td>-20 dBm<\/td><td>0,01 mW<\/td><td>10 \u03bcW<\/td><\/tr><tr><td>-30 dBm<\/td><td>0,001 mW<\/td><td>1 \u03bcW<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03ba\u03ac\u03b8\u03b5 \u03c0\u03c4\u03ce\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac 10 dB \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03c3\u03c4\u03bf \u03ad\u03bd\u03b1 \u03b4\u03ad\u03ba\u03b1\u03c4\u03bf. \u03a0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1, \u03ba\u03ac\u03b8\u03b5 \u03c0\u03c4\u03ce\u03c3\u03b7 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 3 dB \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03c3\u03c7\u03b5\u03b4\u03cc\u03bd \u03c3\u03c4\u03bf \u03bc\u03b9\u03c3\u03cc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0393\u03b9\u03b1\u03c4\u03af \u03bf\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 dBm \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2;<\/h2>\n\n\n\n<p>\u039f\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03b1\u03ba\u03ad\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03b9\u03c3\u03c7\u03cd \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc 1 mW \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2. \u0393\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc, \u03c4\u03bf Power Meter \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc.<\/p>\n\n\n\n<p>\u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03c4\u03bf \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc \u03c0\u03c1\u03cc\u03c3\u03b7\u03bc\u03bf \u03b4\u03b5\u03bd \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b4\u03b5\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c3\u03ae\u03bc\u03b1. \u0394\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03bb\u03ce\u03c2 \u03cc\u03c4\u03b9 \u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 1 mW.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03b2\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c3\u03c9\u03c3\u03c4\u03ac \u03c4\u03b9\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2, \u03b8\u03c5\u03bc\u03b7\u03b8\u03b5\u03af\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03ba\u03b1\u03bd\u03cc\u03bd\u03b1:<\/p>\n\n\n\n<ul>\n<li>-5 dBm: \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc -10 dBm.<\/li>\n\n\n\n<li>-10 dBm: \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc -20 dBm.<\/li>\n\n\n\n<li>-20 dBm: \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc -30 dBm.<\/li>\n<\/ul>\n\n\n\n<p>\u039c\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03bb\u03cc\u03b3\u03b9\u03b1, \u03cc\u03c3\u03bf \u03b7 \u03c4\u03b9\u03bc\u03ae \u03c0\u03bb\u03b7\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf \u03bc\u03b7\u03b4\u03ad\u03bd, \u03c4\u03cc\u03c3\u03bf \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd\u03c2. \u0391\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b1, \u03cc\u03c3\u03bf \u03b7 \u03c4\u03b9\u03bc\u03ae \u03b1\u03c0\u03bf\u03bc\u03b1\u03ba\u03c1\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c0\u03b9\u03bf \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2, \u03c4\u03cc\u03c3\u03bf \u03b5\u03be\u03b1\u03c3\u03b8\u03b5\u03bd\u03b5\u03af \u03c4\u03bf \u03c3\u03ae\u03bc\u03b1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0395\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03ae \u03bc\u03b9\u03b1 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 -20 dBm;<\/h2>\n\n\n\n<p>\u0394\u03b5\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03bc\u03af\u03b1 \u03ba\u03bf\u03b9\u03bd\u03ae \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1. \u0397 \u03c4\u03b9\u03bc\u03ae -20 dBm \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03bc\u03ad\u03c3\u03b1 \u03c3\u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2, \u03b1\u03bb\u03bb\u03ac \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bd\u03b1 \u03c0\u03bb\u03b7\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf \u03cc\u03c1\u03b9\u03bf \u03b5\u03c5\u03b1\u03b9\u03c3\u03b8\u03b7\u03c3\u03af\u03b1\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03ac\u03bb\u03bb\u03bf\u03c5 \u03b4\u03ad\u03ba\u03c4\u03b7.<\/p>\n\n\n\n<p>\u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 \u03c0\u03ac\u03bd\u03c4\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03c4\u03bf\u03c5 OLT, \u03c4\u03bf\u03c5 ONT, \u03c4\u03bf\u03c5 SFP \u03ae \u03c4\u03bf\u03c5 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03bf\u03c5 \u03b4\u03ad\u03ba\u03c4\u03b7. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03b5\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2, \u03c4\u03b7\u03bd \u03ba\u03bb\u03ac\u03c3\u03b7 \u03c4\u03bf\u03c5 PON \u03ba\u03b1\u03b9 \u03c4\u03b1 Pass\/Fail thresholds \u03c4\u03bf\u03c5 \u03ad\u03c1\u03b3\u03bf\u03c5.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03c4\u03bf -15 dBm \u03b4\u03b5\u03bd \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u00ab\u03ba\u03b1\u03bb\u03cc\u00bb \u03ba\u03b1\u03b9 \u03c4\u03bf -25 dBm \u03b4\u03b5\u03bd \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u00ab\u03ba\u03b1\u03ba\u03cc\u00bb. \u03a4\u03bf \u03cc\u03c1\u03b9\u03bf \u03c4\u03bf\u03c5 \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc power budget \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03c4\u03bf \u03c4\u03b5\u03bb\u03b9\u03ba\u03cc \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2;<\/h2>\n\n\n\n<p>\u03a4\u03bf dB \u03b4\u03b5\u03bd \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b9\u03c3\u03c7\u03cd. \u0391\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b1, \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03b9 \u03b4\u03cd\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03ba\u03b1\u03b9 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03ac\u03bb\u03bb\u03b1\u03be\u03b5 \u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c3\u03c4\u03bf \u03ac\u03bb\u03bb\u03bf.<\/p>\n\n\n\n<p>\u03a3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2, \u03bf\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03bf\u03af \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c4\u03bf dB \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03b3\u03b9\u03b1:<\/p>\n\n\n\n<ul>\n<li>\u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03bf\u03cd link,<\/li>\n\n\n\n<li>\u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 connector,<\/li>\n\n\n\n<li>\u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03cc\u03bb\u03bb\u03b7\u03c3\u03b7\u03c2,<\/li>\n\n\n\n<li>\u03b5\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5,<\/li>\n\n\n\n<li>\u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 splitter,<\/li>\n\n\n\n<li>\u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae \u03ba\u03b1\u03b9 reflectance, \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7.<\/li>\n<\/ul>\n\n\n\n<p>\u0397 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae \u03c3\u03c7\u03ad\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03b1\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b1 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9:<\/p>\n\n\n\n<p><code>dB = 10 \u00d7 log10(P2 \/ P1)<\/code><\/p>\n\n\n\n<p>\u038c\u03c4\u03b1\u03bd \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1\u03c2, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bc\u03b5:<\/p>\n\n\n\n<p><code>\u0391\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB = 10 \u00d7 log10(Pin \/ Pout)<\/code><\/p>\n\n\n\n<p>\u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03bf Pout \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf Pin, \u03c4\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03b4\u03af\u03bd\u03b5\u03b9 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc. \u0386\u03c1\u03b1, \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 1 dB \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 3 dB.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03ce\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b1\u03c0\u03cc \u03b4\u03cd\u03bf \u03c4\u03b9\u03bc\u03ad\u03c2 dBm;<\/h2>\n\n\n\n<p>\u039f \u03c0\u03b9\u03bf \u03b1\u03c0\u03bb\u03cc\u03c2 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03bb\u03ae\u03c8\u03b7\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03b5\u03ba\u03c0\u03bf\u03bc\u03c0\u03ae\u03c2.<\/p>\n\n\n\n<p><code>\u0391\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB = \u0399\u03c3\u03c7\u03cd\u03c2 \u03b5\u03ba\u03c0\u03bf\u03bc\u03c0\u03ae\u03c2 \u03c3\u03b5 dBm \u2212 \u0399\u03c3\u03c7\u03cd\u03c2 \u03bb\u03ae\u03c8\u03b7\u03c2 \u03c3\u03b5 dBm<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 1<\/h3>\n\n\n\n<p>\u0397 \u03c0\u03b7\u03b3\u03ae \u03b4\u03af\u03bd\u03b5\u03b9 -3 dBm \u03ba\u03b1\u03b9 \u03bf \u03b4\u03ad\u03ba\u03c4\u03b7\u03c2 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 -8 dBm.<\/p>\n\n\n\n<p><code>-3 \u2212 (-8) = 5 dB \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1<\/code><\/p>\n\n\n\n<p>\u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03c4\u03bf link \u03c7\u03ac\u03bd\u03b5\u03b9 5 dB \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03bf\u03bd \u03b4\u03ad\u03ba\u03c4\u03b7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 2<\/h3>\n\n\n\n<p>\u0397 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 -12 dBm \u03ba\u03b1\u03b9 \u03b7 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 -14,5 dBm.<\/p>\n\n\n\n<p><code>-12 \u2212 (-14,5) = 2,5 dB \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1<\/code><\/p>\n\n\n\n<p>\u0386\u03c1\u03b1, \u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03b5\u03b9 2,5 dB \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1\u03c2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 3: \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03c0\u03c1\u03b9\u03bd \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03ac \u03c4\u03bf\u03bd \u03ba\u03b1\u03b8\u03b1\u03c1\u03b9\u03c3\u03bc\u03cc<\/h3>\n\n\n\n<p>\u03a0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03ba\u03b1\u03b8\u03b1\u03c1\u03b9\u03c3\u03bc\u03cc, \u03c4\u03bf Power Meter \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 -22 dBm. \u039c\u03b5\u03c4\u03ac \u03c4\u03bf\u03bd \u03ba\u03b1\u03b8\u03b1\u03c1\u03b9\u03c3\u03bc\u03cc, \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 -19 dBm.<\/p>\n\n\n\n<p>\u0397 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03b8\u03b7\u03ba\u03b5 \u03ba\u03b1\u03c4\u03ac 3 dB. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03bf \u03ba\u03b1\u03b8\u03b1\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03cc\u03bd \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03af\u03b1\u03c3\u03b5 \u03c4\u03b7\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd \u03c0\u03bf\u03c5 \u03ad\u03c6\u03c4\u03b1\u03c3\u03b5 \u03c3\u03c4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u039f \u03ba\u03b1\u03bd\u03cc\u03bd\u03b1\u03c2 \u03c4\u03c9\u03bd 3 dB \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd 10 dB<\/h2>\n\n\n\n<p>\u039f\u03b9 \u03b4\u03cd\u03bf \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03ba\u03b1\u03bd\u03cc\u03bd\u03b5\u03c2 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c4\u03bf\u03bd \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03b5\u03af \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1 \u03bc\u03b9\u03b1 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c7\u03c9\u03c1\u03af\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03ae.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u039c\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae<\/th><th>\u0391\u03bb\u03bb\u03b1\u03b3\u03ae \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2<\/th><\/tr><\/thead><tbody><tr><td>+3 dB<\/td><td>\u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b9\u03c3\u03c7\u03cd\u03c2<\/td><\/tr><tr><td>-3 dB<\/td><td>\u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03bc\u03b9\u03c3\u03ae \u03b9\u03c3\u03c7\u03cd\u03c2<\/td><\/tr><tr><td>+10 dB<\/td><td>\u03b4\u03b5\u03ba\u03b1\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b9\u03c3\u03c7\u03cd\u03c2<\/td><\/tr><tr><td>-10 dB<\/td><td>\u03c4\u03bf \u03ad\u03bd\u03b1 \u03b4\u03ad\u03ba\u03b1\u03c4\u03bf \u03c4\u03b7\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2<\/td><\/tr><tr><td>+20 dB<\/td><td>\u03b5\u03ba\u03b1\u03c4\u03bf\u03bd\u03c4\u03b1\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b9\u03c3\u03c7\u03cd\u03c2<\/td><\/tr><tr><td>-20 dB<\/td><td>\u03c4\u03bf \u03ad\u03bd\u03b1 \u03b5\u03ba\u03b1\u03c4\u03bf\u03c3\u03c4\u03cc \u03c4\u03b7\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 -10 dBm \u03ba\u03b1\u03b9 -13 dBm \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c4\u03b1 3 dB. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03c4\u03c9\u03bd -13 dBm \u03ad\u03c7\u03b5\u03b9 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c4\u03b7 \u03bc\u03b9\u03c3\u03ae \u03b9\u03c3\u03c7\u03cd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03bf Optical Power Meter<\/h2>\n\n\n\n<p>\u0388\u03bd\u03b1 Optical Power Meter \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b5\u03af\u03be\u03b5\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b9\u03c3\u03c7\u03cd \u03c3\u03b5 dBm \u03ae \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB. \u0393\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03c0\u03c1\u03b9\u03bd \u03be\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03cc\u03c4\u03b5 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03bf\u03c5\u03bc\u03b5 dBm;<\/h3>\n\n\n\n<p>\u0395\u03c0\u03b9\u03bb\u03ad\u03b3\u03bf\u03c5\u03bc\u03b5 dBm \u03cc\u03c4\u03b1\u03bd \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03c0\u03cc\u03c3\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd\u03c2 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2. \u03a3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bc\u03b5 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b3\u03b9\u03b1:<\/p>\n\n\n\n<ul>\n<li>\u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b5\u03be\u03cc\u03b4\u03bf\u03c5 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b7\u03b3\u03ae\u03c2,<\/li>\n\n\n\n<li>\u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03c0\u03c1\u03af\u03b6\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b7,<\/li>\n\n\n\n<li>\u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03b5\u03b9\u03c3\u03cc\u03b4\u03bf\u03c5 \u03c3\u03b5 ONT \u03ae \u03b4\u03ad\u03ba\u03c4\u03b7,<\/li>\n\n\n\n<li>\u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03c9\u03bd PON,<\/li>\n\n\n\n<li>\u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ae.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03cc\u03c4\u03b5 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03bf\u03c5\u03bc\u03b5 dB;<\/h3>\n\n\n\n<p>\u0395\u03c0\u03b9\u03bb\u03ad\u03b3\u03bf\u03c5\u03bc\u03b5 dB \u03cc\u03c4\u03b1\u03bd \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03b4\u03cd\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5 \u03ae link.<\/p>\n\n\n\n<p>\u0391\u03c1\u03c7\u03b9\u03ba\u03ac, \u03c3\u03c5\u03bd\u03b4\u03ad\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03bc\u03b5 \u03c4\u03bf reference cord \u03ba\u03b1\u03b9 \u03bc\u03b7\u03b4\u03b5\u03bd\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03bf\u03cd\u03bc\u03b5 \u03c4\u03bf link \u03c0\u03bf\u03c5 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03be\u03bf\u03c5\u03bc\u03b5. \u03a4\u03ad\u03bb\u03bf\u03c2, \u03c4\u03bf Power Meter \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03cc\u03c3\u03b8\u03b5\u03c4\u03b7 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB.<\/p>\n\n\n\n<p>\u03a3\u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b1 <a href=\"https:\/\/arctos.gr\/en\/product-category\/fiber-optic-control-instruments\/\">\u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b9\u03bd\u03ce\u03bd<\/a> \u03c4\u03b7\u03c2 ARCTOS Solutions \u03b8\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 Power Meters, \u03c0\u03b7\u03b3\u03ad\u03c2 \u03c6\u03c9\u03c4\u03cc\u03c2, PON testers \u03ba\u03b1\u03b9 OTDR \u03b3\u03b9\u03b1 \u03b5\u03c0\u03b1\u03b3\u03b3\u03b5\u03bb\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03ce\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ac\u03bc\u03b5 \u03c3\u03c9\u03c3\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b5\u03bd\u03cc\u03c2 link;<\/h2>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c3\u03c9\u03c3\u03c4\u03cc \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1, \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03c4\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03c3\u03b5\u03b9\u03c1\u03ac. \u0388\u03c4\u03c3\u03b9, \u03b8\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 \u03bb\u03ac\u03b8\u03b7 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c8\u03b5\u03c5\u03b4\u03b5\u03af\u03c2 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b5\u03c2.<\/p>\n\n\n\n<ol>\n<li>\u0395\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03ba\u03b1\u03b9 \u03b1\u03c6\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03bd\u03b1 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03ad\u03be\u03bf\u03b4\u03cc \u03c4\u03b7\u03c2.<\/li>\n\n\n\n<li>\u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf Power Meter.<\/li>\n\n\n\n<li>\u039a\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b1 reference cords \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 adapters.<\/li>\n\n\n\n<li>\u03a3\u03c5\u03bd\u03b4\u03ad\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03b1\u03c0\u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03bc\u03b5 \u03c4\u03bf Power Meter \u03bc\u03ad\u03c3\u03c9 \u03c4\u03bf\u03c5 reference cord.<\/li>\n\n\n\n<li>\u03a0\u03b1\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c0\u03bb\u03ae\u03ba\u03c4\u03c1\u03bf \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03ae \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd.<\/li>\n\n\n\n<li>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf link \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b1\u03bb\u03bb\u03ac\u03be\u03b5\u03c4\u03b5 \u03c4\u03bf reference cord \u03c4\u03b7\u03c2 \u03c0\u03b7\u03b3\u03ae\u03c2.<\/li>\n\n\n\n<li>\u039a\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03c4\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03bd\u03ad\u03b1 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7 \u03c0\u03c1\u03b9\u03bd \u03c4\u03b7\u03bd \u03b5\u03b9\u03c3\u03b1\u03b3\u03ac\u03b3\u03b5\u03c4\u03b5.<\/li>\n\n\n\n<li>\u0394\u03b9\u03b1\u03b2\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB.<\/li>\n\n\n\n<li>\u03a3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 \u03c4\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03bc\u03b5 \u03c4\u03bf loss budget \u03c4\u03bf\u03c5 \u03ad\u03c1\u03b3\u03bf\u03c5.<\/li>\n<\/ol>\n\n\n\n<p>\u0391\u03bd \u03c4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf \u03b4\u03b5\u03af\u03be\u03b5\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1, \u03b5\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03be\u03b1\u03bd\u03ac \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2. \u03a3\u03c5\u03c7\u03bd\u03ac, \u03b7 \u03c0\u03b7\u03b3\u03ae \u03b4\u03b5\u03bd \u03b5\u03af\u03c7\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03ad\u03be\u03bf\u03b4\u03cc \u03c4\u03b7\u03c2 \u03ae \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03ac\u03bb\u03bb\u03b1\u03be\u03b5 \u03c4\u03b1 reference cords \u03bc\u03b5\u03c4\u03ac \u03c4\u03bf\u03bd \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03c3\u03bc\u03cc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 dB;<\/h2>\n\n\n\n<p>\u03a3\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03b1\u03b8\u03b7\u03c4\u03b9\u03ba\u03ae \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae, \u03c4\u03bf link \u03b4\u03b5\u03bd \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b9\u03c3\u03c7\u03cd. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03bc\u03b9\u03b1 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 insertion loss \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03bb\u03ac\u03b8\u03bf\u03c2 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2, \u03b2\u03c1\u03ce\u03bc\u03b9\u03ba\u03bf reference cord \u03ae \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03c0\u03b7\u03b3\u03ae\u03c2.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b1\u03bd \u03c4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf \u03b4\u03b5\u03af\u03be\u03b5\u03b9 -0,4 dB \u03c9\u03c2 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1, \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03ac\u03b2\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03c3\u03bc\u03cc. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03ba\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b2\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b5 \u03c4\u03b1 \u03af\u03b4\u03b9\u03b1 \u03ba\u03b1\u03bb\u03ce\u03b4\u03b9\u03b1 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2.<\/p>\n\n\n\n<p>\u039f\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03bc\u03b5 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc \u03c0\u03c1\u03cc\u03c3\u03b7\u03bc\u03bf. \u0393\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc, \u03b4\u03b9\u03b1\u03b2\u03ac\u03c3\u03c4\u03b5 \u03c4\u03bf manual \u03ba\u03b1\u03b9 \u03b5\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03b1\u03bd \u03b7 \u03bf\u03b8\u03cc\u03bd\u03b7 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u00abloss\u00bb, \u00abrelative power\u00bb \u03ae \u03b1\u03c0\u03bb\u03ae \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">dBm \u03ba\u03b1\u03b9 dB \u03c3\u03b5 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 PON \u03ba\u03b1\u03b9 FTTH<\/h2>\n\n\n\n<p>\u03a3\u03b5 \u03ad\u03bd\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03bf PON, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ac \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03bb\u03ae\u03c8\u03b7\u03c2 \u03c3\u03b5 dBm. \u0388\u03c0\u03b5\u03b9\u03c4\u03b1, \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae \u03bc\u03b5 \u03c4\u03bf \u03b5\u03cd\u03c1\u03bf\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 ONT \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7\u03c2 \u03ba\u03bb\u03ac\u03c3\u03b7\u03c2 PON.<\/p>\n\n\n\n<p>\u03a0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1, \u03c4\u03bf \u03b4\u03af\u03ba\u03c4\u03c5\u03bf \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc splitters, connectors, \u03c3\u03c5\u03b3\u03ba\u03bf\u03bb\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5. \u039f\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03bf\u03af \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b5\u03c2 \u03c3\u03b5 dB \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc loss budget.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 GPON \u03ba\u03b1\u03b9 XG(S)-PON, \u03c4\u03bf <a href=\"https:\/\/arctos.gr\/en\/product\/grandway-fhp2g10-selective-power-meter\/\">Grandway FHP2G10 Selective Power Meter<\/a> \u03bc\u03b5\u03c4\u03c1\u03ac \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ac \u03c4\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c1\u03c7\u03cc\u03bc\u03b5\u03bd\u03b1 \u03bc\u03ae\u03ba\u03b7 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 1490 nm \u03ba\u03b1\u03b9 1577 nm. \u0388\u03c4\u03c3\u03b9, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ac \u03c0\u03b9\u03bf \u03ba\u03b1\u03b8\u03b1\u03c1\u03ae \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1 \u03c4\u03b7\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03ce\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc loss budget;<\/h2>\n\n\n\n<p>\u03a4\u03bf loss budget \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03b5\u03b9 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03b1\u03bc\u03b5\u03bd\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b5\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae\u03c2. \u03a3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1, \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03ba\u03b1\u03bb\u03ce\u03b4\u03b9\u03bf, \u03c4\u03bf\u03c5\u03c2 connectors, \u03c4\u03b9\u03c2 \u03c3\u03c5\u03b3\u03ba\u03bf\u03bb\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2, \u03c4\u03bf\u03c5\u03c2 splitters \u03ba\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2.<\/p>\n\n\n\n<p><code>\u03a3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 = \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03af\u03bd\u03b1\u03c2 + connectors + splices + splitters + \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf<\/code><\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03bc\u03b9\u03b1 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 2 dB \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5, 1 dB \u03b1\u03c0\u03cc connectors, 0,5 dB \u03b1\u03c0\u03cc \u03c3\u03c5\u03b3\u03ba\u03bf\u03bb\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 7 dB \u03b1\u03c0\u03cc splitter.<\/p>\n\n\n\n<p><code>2 + 1 + 0,5 + 7 = 10,5 dB<\/code><\/p>\n\n\n\n<p>\u0386\u03c1\u03b1, \u03c4\u03bf \u03b1\u03bd\u03b1\u03bc\u03b5\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf loss budget \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b1 10,5 dB \u03c0\u03c1\u03b9\u03bd \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf \u03c4\u03bf\u03c5 \u03ad\u03c1\u03b3\u03bf\u03c5.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">dB, dB\/km \u03ba\u03b1\u03b9 dBm: \u03bc\u03b7\u03bd \u03c4\u03b1 \u03bc\u03c0\u03b5\u03c1\u03b4\u03b5\u03cd\u03b5\u03c4\u03b5<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u039c\u03bf\u03bd\u03ac\u03b4\u03b1<\/th><th>\u03a4\u03b9 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9<\/th><th>\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1<\/th><\/tr><\/thead><tbody><tr><td>dBm<\/td><td>\u0391\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd<\/td><td>-18 dBm \u03c3\u03c4\u03b7\u03bd \u03b5\u03af\u03c3\u03bf\u03b4\u03bf \u03c4\u03bf\u03c5 ONT<\/td><\/tr><tr><td>dB<\/td><td>\u03a3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03ae \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae<\/td><td>2,4 dB \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 link<\/td><\/tr><tr><td>dB\/km<\/td><td>\u0395\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 \u03b1\u03bd\u03ac \u03c7\u03b9\u03bb\u03b9\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf<\/td><td>0,35 dB\/km \u03c3\u03c4\u03b1 1310 nm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u03a4\u03bf dB\/km \u03b4\u03b5\u03bd \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1. \u0391\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b1, \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03b1 dB \u03c7\u03ac\u03bd\u03b5\u03b9 \u03b7 \u03af\u03bd\u03b1 \u03b3\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03c7\u03b9\u03bb\u03b9\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae \u03bc\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae\u03c2.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b1\u03bd \u03b7 \u03af\u03bd\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03b5\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 0,35 dB\/km \u03ba\u03b1\u03b9 \u03bc\u03ae\u03ba\u03bf\u03c2 4 km, \u03b7 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9:<\/p>\n\n\n\n<p><code>0,35 \u00d7 4 = 1,4 dB<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03ce\u03c2 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 dB \u03c3\u03b5 \u03ad\u03bd\u03b1 OTDR;<\/h2>\n\n\n\n<p>\u03a4\u03bf OTDR \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b5\u03c2 \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b5\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03af\u03bd\u03b1\u03c2. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b5\u03af\u03be\u03b5\u03b9 0,1 dB \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03cc\u03bb\u03bb\u03b7\u03c3\u03b7, 0,5 dB \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd connector \u03ae \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03b5\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 \u03c3\u03b5 dB\/km.<\/p>\n\n\n\n<p>\u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03c4\u03bf OTDR \u03b4\u03b5\u03bd \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03cc\u03c0\u03c9\u03c2 \u03ad\u03bd\u03b1 \u03b1\u03c0\u03bb\u03cc Power Meter. \u03a4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf \u03b1\u03bd\u03b1\u03bb\u03cd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03bf\u03c0\u03b9\u03c3\u03b8\u03bf\u03c3\u03ba\u03ad\u03b4\u03b1\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03b1\u03ba\u03bb\u03ac\u03c3\u03b5\u03b9\u03c2. \u0393\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf trace, \u03c4\u03bf\u03c5\u03c2 event markers \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03c2 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2.<\/p>\n\n\n\n<p>The <a href=\"https:\/\/arctos.gr\/en\/product\/otdr-optikon-inon-grandway-fho5000-t43f\/\">Grandway FHO5000-T43F OTDR<\/a> \u03b2\u03bf\u03b7\u03b8\u03ac \u03c3\u03c4\u03bf\u03bd \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03bc\u03cc \u03b1\u03c0\u03c9\u03bb\u03b5\u03b9\u03ce\u03bd, connectors, \u03c3\u03c5\u03b3\u03ba\u03bf\u03bb\u03bb\u03ae\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b2\u03bb\u03b1\u03b2\u03ce\u03bd \u03c3\u03b5 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 FTTx \u03ba\u03b1\u03b9 PON.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0393\u03b9\u03b1\u03c4\u03af \u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03bf\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03b1\u03bd\u03ac \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2;<\/h2>\n\n\n\n<p>\u0397 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03af\u03bd\u03b1 \u03b4\u03b5\u03bd \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b5\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 \u03c3\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03bc\u03ae\u03ba\u03b7 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03bf\u03b9 \u03ba\u03ac\u03bc\u03c8\u03b5\u03b9\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03c3\u03bf\u03c5\u03bd \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03ad\u03bd\u03b1 \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 \u03ac\u03bb\u03bb\u03bf.<\/p>\n\n\n\n<p>\u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03b9 \u03c3\u03c4\u03bf Power Meter \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03b7 \u03c0\u03b7\u03b3\u03ae. \u0391\u03bd \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03b9 \u03bb\u03ac\u03b8\u03bf\u03c2 \u03c4\u03b9\u03bc\u03ae, \u03c4\u03bf \u03cc\u03c1\u03b3\u03b1\u03bd\u03bf \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b5\u03af\u03be\u03b5\u03b9 \u03bb\u03b1\u03bd\u03b8\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1.<\/p>\n\n\n\n<p>\u03a0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1, \u03bc\u03b9\u03b1 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03c3\u03c4\u03b1 1310 nm \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1 1550 nm \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03b5\u03b9 \u03c3\u03c4\u03bf\u03bd \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03bc\u03cc \u03ba\u03ac\u03bc\u03c8\u03b5\u03c9\u03bd. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03bf \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03b5\u03af \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03ad\u03c1\u03b3\u03bf\u03c5.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a3\u03c5\u03c7\u03bd\u03ac \u03bb\u03ac\u03b8\u03b7 \u03bc\u03b5 dBm \u03ba\u03b1\u03b9 dB<\/h2>\n\n\n\n<ul>\n<li>\u0398\u03b5\u03c9\u03c1\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03bf -25 dBm \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf -15 dBm.<\/li>\n\n\n\n<li>\u03a3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03c4\u03b9\u03bc\u03ae dBm \u03b1\u03c0\u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03bc\u03b5 \u03bc\u03b9\u03b1 \u03c4\u03b9\u03bc\u03ae dB.<\/li>\n\n\n\n<li>\u03a0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03bf\u03c5\u03bc\u03b5 dBm \u03c3\u03b1\u03bd \u03b1\u03c0\u03bb\u03bf\u03cd\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b2\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd.<\/li>\n\n\n\n<li>\u0391\u03c6\u03b1\u03b9\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03bc\u03b5 \u03bb\u03ac\u03b8\u03bf\u03c2 \u03c3\u03b5\u03b9\u03c1\u03ac.<\/li>\n\n\n\n<li>\u039c\u03b5\u03c4\u03c1\u03ac\u03bc\u03b5 \u03bc\u03b5 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf Power Meter.<\/li>\n\n\n\n<li>\u03a0\u03b1\u03c1\u03b1\u03bb\u03b5\u03af\u03c0\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03bd \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03c3\u03bc\u03cc \u03c0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 loss.<\/li>\n\n\n\n<li>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bc\u03b5 \u03b2\u03c1\u03ce\u03bc\u03b9\u03ba\u03b1 reference cords.<\/li>\n\n\n\n<li>\u039c\u03c0\u03b5\u03c1\u03b4\u03b5\u03cd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf dB\/km \u03bc\u03b5 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1.<\/li>\n\n\n\n<li>\u0398\u03b5\u03c9\u03c1\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03bc\u03af\u03b1 \u03c4\u03b9\u03bc\u03ae dBm \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03ae \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03be\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03b4\u03ad\u03ba\u03c4\u03b7.<\/li>\n\n\n\n<li>\u0391\u03b3\u03bd\u03bf\u03bf\u03cd\u03bc\u03b5 \u03c4\u03bf overload \u03cc\u03c4\u03b1\u03bd \u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ac \u03c5\u03c8\u03b7\u03bb\u03ae.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0393\u03c1\u03ae\u03b3\u03bf\u03c1\u03bf \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 troubleshooting<\/h2>\n\n\n\n<p>\u0391\u03c2 \u03c5\u03c0\u03bf\u03b8\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03b1 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03ad\u03b4\u03b9\u03bd\u03b5 -17 dBm \u03ba\u03b1\u03b9 \u03c4\u03ce\u03c1\u03b1 \u03b4\u03af\u03bd\u03b5\u03b9 -23 dBm. \u0397 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b1 6 dB.<\/p>\n\n\n\n<p>\u0391\u03c1\u03c7\u03b9\u03ba\u03ac, \u03ba\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 connectors \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 \u03be\u03b1\u03bd\u03ac. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03c4\u03b5 \u03b3\u03bd\u03c9\u03c3\u03c4\u03cc patch cord. \u0391\u03bd \u03b7 \u03c4\u03b9\u03bc\u03ae \u03b4\u03b5\u03bd \u03b2\u03b5\u03bb\u03c4\u03b9\u03c9\u03b8\u03b5\u03af, \u03b5\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03ba\u03ac\u03bc\u03c8\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b5\u03bd\u03b4\u03b9\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03b1.<\/p>\n\n\n\n<p>\u0388\u03c0\u03b5\u03b9\u03c4\u03b1, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 OTDR \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 \u03c4\u03bf \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1. \u039c\u03b5 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03c3\u03b5\u03b9\u03c1\u03ac, \u03b8\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03af\u03c3\u03b5\u03c4\u03b5 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1 \u03c4\u03b7\u03bd \u03b1\u03b9\u03c4\u03af\u03b1 \u03c7\u03c9\u03c1\u03af\u03c2 \u03c4\u03c5\u03c7\u03b1\u03af\u03b5\u03c2 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc checklist \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2<\/h2>\n\n\n\n<ul>\n<li>\u039a\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae, \u03c4\u03bf Power Meter \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 connectors.<\/li>\n\n\n\n<li>\u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n\n\n\n<li>\u0395\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03b1\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c3\u03c4\u03b5 dBm \u03ae dB.<\/li>\n\n\n\n<li>\u03a3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b7\u03b3\u03ae \u03c0\u03c1\u03b9\u03bd \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 reference.<\/li>\n\n\n\n<li>\u039c\u03b7\u03bd \u03b1\u03bb\u03bb\u03ac\u03b6\u03b5\u03c4\u03b5 \u03c4\u03b1 reference cords \u03bc\u03b5\u03c4\u03ac \u03c4\u03bf\u03bd \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03c3\u03bc\u03cc.<\/li>\n\n\n\n<li>\u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03b5\u03ba\u03c0\u03bf\u03bc\u03c0\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03ae\u03c8\u03b7\u03c2.<\/li>\n\n\n\n<li>\u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03c3\u03b5 dB.<\/li>\n\n\n\n<li>\u03a3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf loss budget.<\/li>\n\n\n\n<li>\u0395\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03b4\u03ad\u03ba\u03c4\u03b7.<\/li>\n\n\n\n<li>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 OTDR \u03cc\u03c4\u03b1\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c3\u03c4\u03b5 \u03b8\u03ad\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b2\u03bb\u03ac\u03b2\u03b7\u03c2.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>\u03a4\u03b1 <strong>dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2<\/strong> \u03b1\u03c0\u03b1\u03bd\u03c4\u03bf\u03cd\u03bd \u03c3\u03b5 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2. \u03a4\u03bf dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf, \u03b5\u03bd\u03ce \u03c4\u03bf dB \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03c7\u03ac\u03b8\u03b7\u03ba\u03b5 \u03ae \u03ac\u03bb\u03bb\u03b1\u03be\u03b5 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b4\u03cd\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03b1.<\/p>\n\n\n\n<p>\u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03b4\u03b9\u03b1\u03b2\u03ac\u03c3\u03c4\u03b5 \u03c0\u03c1\u03ce\u03c4\u03b1 \u03c4\u03b7 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1. \u0388\u03c0\u03b5\u03b9\u03c4\u03b1, \u03b5\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2, \u03c4\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b3\u03ac\u03bd\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03cc\u03c1\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u03a0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1, \u03b8\u03c5\u03bc\u03b7\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03b1 \u03c0\u03b9\u03bf \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c3\u03b8\u03b5\u03bd\u03ad\u03c3\u03c4\u03b5\u03c1\u03bf \u03c3\u03ae\u03bc\u03b1.<\/p>\n\n\n\n<p>\u03a4\u03ad\u03bb\u03bf\u03c2, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 dBm \u03b3\u03b9\u03b1 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03b9\u03c3\u03c7\u03cd, dB \u03b3\u03b9\u03b1 loss \u03ba\u03b1\u03b9 OTDR \u03b3\u03b9\u03b1 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c4\u03c9\u03bd. \u039c\u03b5 \u03b1\u03c5\u03c4\u03cc\u03bd \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf, \u03b8\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 \u03c0\u03b9\u03bf \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b5\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b5\u03c2 dB \u03ba\u03b1\u03b9 dBm, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03bc\u03b2\u03bf\u03c5\u03bb\u03b5\u03c5\u03c4\u03b5\u03af\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd <a href=\"https:\/\/www.thefoa.org\/tech\/ref\/testing\/test\/dB.html\" target=\"_blank\" rel=\"noreferrer noopener\">\u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03cc \u03bf\u03b4\u03b7\u03b3\u03cc \u03c4\u03b7\u03c2 Fiber Optic Association<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a3\u03c5\u03c7\u03bd\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 dB \u03ba\u03b1\u03b9 dBm;<\/h3>\n\n\n\n<p>\u03a4\u03bf dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd \u03bc\u03b5 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03bf 1 mW. \u0391\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b1, \u03c4\u03bf dB \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b1, \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b1\u03bd\u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b4\u03cd\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a4\u03bf -10 dBm \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf -20 dBm;<\/h3>\n\n\n\n<p>\u039d\u03b1\u03b9, \u03c4\u03bf -10 dBm \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03c3\u03ae\u03bc\u03b1. \u03a3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1, \u03ad\u03c7\u03b5\u03b9 \u03b4\u03b5\u03ba\u03b1\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b9\u03c3\u03c7\u03cd \u03b1\u03c0\u03cc \u03c4\u03bf -20 dBm.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 3 dB;<\/h3>\n\n\n\n<p>\u0391\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 3 dB \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03b9\u03c3\u03c7\u03cd\u03c2 \u03bc\u03b5\u03b9\u03ce\u03b8\u03b7\u03ba\u03b5 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c3\u03c4\u03bf \u03bc\u03b9\u03c3\u03cc. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03bc\u03b9\u03b1 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03c4\u03ac 3 dB \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03ce\u03c2 \u03b2\u03c1\u03af\u03c3\u03ba\u03c9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b1\u03c0\u03cc \u03b4\u03cd\u03bf \u03c4\u03b9\u03bc\u03ad\u03c2 dBm;<\/h3>\n\n\n\n<p>\u0391\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03bb\u03ae\u03c8\u03b7\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b9\u03c3\u03c7\u03cd \u03b5\u03ba\u03c0\u03bf\u03bc\u03c0\u03ae\u03c2. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b1\u03c0\u03cc -5 dBm \u03c3\u03b5 -9 dBm \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 4 dB.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0395\u03af\u03bd\u03b1\u03b9 \u03c6\u03c5\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ad\u03c2 \u03bf\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 dBm;<\/h3>\n\n\n\n<p>\u039d\u03b1\u03b9. \u039f\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03b9\u03c3\u03c7\u03cd \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc 1 mW. \u039f\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b5 \u03c4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03b1\u03ba\u03ac \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03c5\u03bd \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac dBm.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0393\u03b9\u03b1\u03c4\u03af \u03c4\u03bf Power Meter \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1;<\/h3>\n\n\n\n<p>\u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2, \u03b7 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03bb\u03ac\u03b8\u03bf\u03c2 reference, \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03c0\u03b7\u03b3\u03ae\u03c2 \u03ae \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03c3\u03c4\u03b1 reference cords. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03ba\u03b1\u03b8\u03b1\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03ac\u03bd\u03c4\u03b5 \u03bd\u03ad\u03bf \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03c3\u03bc\u03cc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03cc\u03c4\u03b5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bc\u03b5 dB\/km;<\/h3>\n\n\n\n<p>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bc\u03b5 dB\/km \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c8\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03be\u03b1\u03c3\u03b8\u03ad\u03bd\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03af\u03bd\u03b1\u03c2 \u03b1\u03bd\u03ac \u03c7\u03b9\u03bb\u03b9\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae \u03bc\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03bf\u03c5.<\/p>","protected":false},"excerpt":{"rendered":null,"protected":false},"author":1,"featured_media":4106,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[179,182,180,184,100,174,178,183,186,185,181],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2: \u03a0\u03ce\u03c2 \u03c4\u03b1 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 ARCTOS<\/title>\n<meta name=\"description\" content=\"dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2: \u03bc\u03ac\u03b8\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac, \u03c0\u03ce\u03c2 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2, \u03c0\u03ce\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 loss \u03ba\u03b1\u03b9 \u03c4\u03b9 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03bf Power Meter.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/arctos.gr\/en\/dbm-db-optikes-ines\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2: \u03a0\u03ce\u03c2 \u03c4\u03b1 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 ARCTOS\" \/>\n<meta property=\"og:description\" content=\"dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2: \u03bc\u03ac\u03b8\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac, \u03c0\u03ce\u03c2 \u03b4\u03b9\u03b1\u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2, \u03c0\u03ce\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 loss \u03ba\u03b1\u03b9 \u03c4\u03b9 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03bf Power Meter.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/arctos.gr\/en\/dbm-db-optikes-ines\/\" \/>\n<meta property=\"og:site_name\" content=\"ARCTOS\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-19T17:59:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-19T18:00:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/arctos.gr\/wp-content\/uploads\/2026\/06\/dbm-db-optikes-ines-power-meter-arctos.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1254\" \/>\n\t<meta property=\"og:image:height\" content=\"1254\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"13 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/arctos.gr\/dbm-db-optikes-ines\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/arctos.gr\/dbm-db-optikes-ines\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/arctos.gr\/#\/schema\/person\/03d99f6ff15b2247f52b3fcfc56c4359\"},\"headline\":\"dBm \u03ba\u03b1\u03b9 dB \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2: \u03c4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03c0\u03ce\u03c2 \u03c4\u03b1 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