{"id":1141,"date":"2026-09-12T00:08:08","date_gmt":"2026-09-12T00:08:08","guid":{"rendered":"https:\/\/www.fenxifiber.com\/insertion-loss-budget-calculation\/"},"modified":"2026-09-12T00:08:08","modified_gmt":"2026-09-12T00:08:08","slug":"ekleme-kaybi-butcesi-hesaplamasi","status":"publish","type":"post","link":"https:\/\/www.fenxifiber.com\/tr\/insertion-loss-budget-calculation\/","title":{"rendered":"Fiber Optik Ba\u011flant\u0131lar i\u00e7in Ekleme Kayb\u0131 B\u00fct\u00e7esi Hesaplamas\u0131: Bir Sat\u0131n Alma ve M\u00fchendislik K\u0131lavuzu"},"content":{"rendered":"<p>Bir al\u0131c\u0131 fiber malzeme listesini onaylar, bir ekip kabloyu d\u00f6\u015fer ve devir teslim s\u0131ras\u0131nda ba\u011flant\u0131 testi, hesaplanan b\u00fct\u00e7enin 1,5 dB \u00fczerinde \u00e7\u0131kar. Sevk g\u00f6revlisi kurulumcuyu su\u00e7lar, kurulumcu konekt\u00f6rleri su\u00e7lar ve m\u00fchendis hesaplamalar\u0131 yeniden g\u00f6zden ge\u00e7irince, \u201ckonekt\u00f6r\u201d\u00fcn ne anlama geldi\u011fi konusunda kimsenin mutab\u0131k kalmad\u0131\u011f\u0131n\u0131 fark eder. Ekleme kayb\u0131 b\u00fct\u00e7esi, i\u015fte bu t\u00fcr anla\u015fmazl\u0131klar\u0131 \u00f6nlemek i\u00e7in tasarlanm\u0131\u015ft\u0131r: tedarik belgesinde, kurulumcunun kabul testinde ve operasyon ekibinde herkesin referans ald\u0131\u011f\u0131 tek bir rakam. Bu k\u0131lavuz, tek modlu ve \u00e7ok modlu fiber ba\u011flant\u0131lar i\u00e7in bu rakam\u0131n nas\u0131l hesaplanaca\u011f\u0131n\u0131, hangi referans de\u011ferlerin kullan\u0131laca\u011f\u0131n\u0131 ve ger\u00e7ek kurulumlarda hesaplamalar\u0131n genellikle nerede yanl\u0131\u015f \u00e7\u0131kt\u0131\u011f\u0131n\u0131 ad\u0131m ad\u0131m a\u00e7\u0131klamaktad\u0131r.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/01\/Fiber-Optic-Adapter-SC-UPC-SM.jpg\" alt=\"Ekleme kayb\u0131 b\u00fct\u00e7esi referans\u0131: SC-UPC konekt\u00f6r \u00e7ifti\" \/><\/p>\n<h2>Bir Ekleme Kayb\u0131 B\u00fct\u00e7esi Asl\u0131nda Neleri Kapsar?<\/h2>\n<p>Ekleme kayb\u0131 b\u00fct\u00e7esi, pasif bir ba\u011flant\u0131 boyunca beklenen t\u00fcm optik g\u00fc\u00e7 kay\u0131plar\u0131n\u0131n toplam\u0131d\u0131r: kilometre ba\u015f\u0131na fiber zay\u0131flamas\u0131, e\u015fle\u015ftirilmi\u015f konekt\u00f6r \u00e7ifti ba\u015f\u0131na kay\u0131p ve ekleme noktas\u0131 ba\u015f\u0131na kay\u0131p. Bu toplam, kabul testlerinde \u201cge\u00e7er-kal\u0131r\u201d kriteri ve m\u00fchendislik a\u015famas\u0131nda tasar\u0131m s\u0131n\u0131rlar\u0131 olarak kullan\u0131l\u0131r. En \u00f6nemli \u00fc\u00e7 unsur \u015funlard\u0131r:<\/p>\n<ul>\n<li>\u00c7al\u0131\u015fma dalga boyunda mesafeye ba\u011fl\u0131 fiber zay\u0131flamas\u0131 (OS2 tek modlu fiberler i\u00e7in 1310 nm ve 1550 nm; OM3, OM4, OM5 \u00e7ok modlu fiberler i\u00e7in 850 nm).<\/li>\n<li>Belirtilen cilalama derecesinde (PC, UPC veya APC) konekt\u00f6rde e\u015fle\u015ftirilmi\u015f \u00e7ift kayb\u0131.<\/li>\n<li>Tek modlu fiberlerde f\u00fczyon ekleme, \u00e7ok modlu fiberlerde ise f\u00fczyon veya mekanik ekleme y\u00f6ntemleri ile ekleme kayb\u0131.<\/li>\n<\/ul>\n<p>Bu rakamlar\u0131n dayand\u0131\u011f\u0131 standartlar \u015funlard\u0131r: <a href=\"https:\/\/tiaonline.org\/\" target=\"_blank\" rel=\"noopener\">TIA-568<\/a> genel kablolama i\u00e7in, <a href=\"https:\/\/www.foa.org\/tech\/lossbudg.htm\" target=\"_blank\" rel=\"noopener\">FOA zarar b\u00fct\u00e7esi referans\u0131<\/a> m\u00fchendislik uygulamalar\u0131 i\u00e7in, bile\u015fen performans\u0131 i\u00e7in IEC 61753-1 ve tek modlu konekt\u00f6rlerin onaylanmas\u0131 i\u00e7in Telcordia GR-326. Yeni bir malzeme listesi (BOM) haz\u0131rlayan m\u00fchendisler, genellikle hesaplamalar\u0131n\u0131 fabrika tip de\u011ferleri yerine TIA-568 standard\u0131ndaki en k\u00f6t\u00fc durum de\u011ferlerine dayand\u0131r\u0131rlar; \u00e7\u00fcnk\u00fc kabul testleri, tedarik\u00e7inin veri sayfas\u0131nda belirtilen ideal temizlik de\u011ferlerine g\u00f6re de\u011fil, en k\u00f6t\u00fc durum senaryosuna g\u00f6re ge\u00e7ilmelidir.<\/p>\n<h2>Bile\u015fen Baz\u0131nda Kay\u0131p: Fiber, Ek Yerleri, Konekt\u00f6rler<\/h2>\n<p>\u00c7o\u011fu m\u00fchendis, \u00f6ncelikle t\u00fcm bile\u015fenleri listeleyip sayarak i\u015fe ba\u015flar. 10 km\u2019lik bir FTTH ana ta\u015f\u0131y\u0131c\u0131 hatt\u0131 i\u00e7in bu, ODF\u2019ye giden 2 km\u2019lik i\u00e7 mekan OS2 kablosu, splitter\u2019a giden 8 km\u2019lik d\u0131\u015f mekan OS2 kablosu, bir PON splitter\u2019\u0131 ve m\u00fc\u015fteri tesisine giden ba\u011flant\u0131 kablosundan olu\u015fur. Her segmentin kendine ait fiber, konekt\u00f6r ve ek say\u0131s\u0131 vard\u0131r ve bunlar\u0131n hepsi ayn\u0131 toplamda birle\u015ftirilir. Uygulanmas\u0131 gereken y\u00f6ntem, e\u015fle\u015ftirilmi\u015f her \u00e7ifti, her eki ve her metre fiberi saymak, ard\u0131ndan se\u00e7ilen referans tablodaki birim de\u011feriyle \u00e7arpmakt\u0131r.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/02\/SC-APC-2.0-3.0mm-with-Zinc-Alloy-Stop.jpg\" alt=\"8 derecelik a\u00e7\u0131l\u0131 u\u00e7 y\u00fczeyi cilal\u0131 SC APC konekt\u00f6r\u00fc\" \/><\/p>\n<p>\u00c7o\u011fu tedarik belgesinde kullan\u0131lan referans de\u011ferler, TIA-568 standard\u0131na g\u00f6re en k\u00f6t\u00fc durum de\u011ferleridir; fabrika tipik de\u011ferleri de\u011fildir. Tipik de\u011ferler, \u00fcreticinin ideal temizlik ve ba\u011flant\u0131 ko\u015fullar\u0131 alt\u0131nda beyan etti\u011fi de\u011ferlerdir; en k\u00f6t\u00fc durum de\u011ferleri ise referans s\u0131n\u0131f\u0131 ba\u011flant\u0131 kablosu kullanan bir kabul test\u00e7isinin g\u00f6zlemledi\u011fi de\u011ferlerdir. Bir <a href=\"https:\/\/www.fenxifiber.com\/tr\/product-category\/odf-fiber-optik-dagitim-cercevesi\/\">ODF<\/a>, 12 ba\u011flant\u0131 noktal\u0131 bir LC paneli, 12 konekt\u00f6r de\u011fil, 12 e\u015fle\u015ftirilmi\u015f \u00e7ift sa\u011flar.<\/p>\n<table>\n<thead>\n<tr>\n<th>Bile\u015fen<\/th>\n<th>Tipik Kay\u0131p<\/th>\n<th>TIA-568 Maksimum<\/th>\n<th>Referans Standard\u0131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>OS2 fiber @ 1310 nm<\/td>\n<td>0,35 dB\/km<\/td>\n<td>0,4 dB\/km<\/td>\n<td>ITU-T G.652.D<\/td>\n<\/tr>\n<tr>\n<td>OS2 fiber @ 1550 nm<\/td>\n<td>0,22 dB\/km<\/td>\n<td>0,3 dB\/km<\/td>\n<td>ITU-T G.652.D<\/td>\n<\/tr>\n<tr>\n<td>OM3\/OM4 fiber @ 850 nm<\/td>\n<td>3,0 dB\/km<\/td>\n<td>3,5 dB\/km<\/td>\n<td>TIA-568.3-D<\/td>\n<\/tr>\n<tr>\n<td>F\u00fczyon ekleme (tek modlu)<\/td>\n<td>0,05 dB<\/td>\n<td>0,3 dB<\/td>\n<td>GR-1209 \/ GR-1221<\/td>\n<\/tr>\n<tr>\n<td>Mekanik ekleme<\/td>\n<td>0,2 dB<\/td>\n<td>0,3 dB<\/td>\n<td>TIA-568<\/td>\n<\/tr>\n<tr>\n<td>E\u015fle\u015ftirilmi\u015f konekt\u00f6r \u00e7ifti (UPC)<\/td>\n<td>0,2 dB<\/td>\n<td>0,75 dB<\/td>\n<td>TIA-568 \/ GR-326<\/td>\n<\/tr>\n<tr>\n<td>E\u015fle\u015ftirilmi\u015f konekt\u00f6r \u00e7ifti (APC)<\/td>\n<td>0,15 dB<\/td>\n<td>0,75 dB<\/td>\n<td>TIA-568 \/ GR-326<\/td>\n<\/tr>\n<tr>\n<td>1\u00d732 PLC ay\u0131r\u0131c\u0131<\/td>\n<td>16,5 dB<\/td>\n<td>17,0 dB<\/td>\n<td>GR-1209-CORE<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ayn\u0131 tablo format\u0131, tedarik \u015fartname tablosu olarak da kullan\u0131labilir. Bile\u015feni, tedarik\u00e7inin garanti etmesi gereken birim ba\u015f\u0131na kayb\u0131, test y\u00f6ntemini ve referans standard\u0131n\u0131 listeleyin. Cilalama derecesini belirtmeden \u201cSC konekt\u00f6r\u00fc, tek modlu, UPC cilal\u0131\u201d \u015feklinde yaz\u0131lm\u0131\u015f bir kalem, birbirine ge\u00e7ebilen ancak 40 dB'nin \u00fczerindeki geri d\u00f6n\u00fc\u015f kayb\u0131 kontrollerinde ba\u015far\u0131s\u0131z olan genel ama\u00e7l\u0131 PC konekt\u00f6rlerine yer b\u0131rak\u0131r.<\/p>\n<h2>Polonya Tipi ve S\u0131n\u0131f\u0131na G\u00f6re Konekt\u00f6r Kayb\u0131<\/h2>\n<p>Tedarik ekipleri, malzeme listesini (BOM) yaln\u0131zca konekt\u00f6r t\u00fcr\u00fcne g\u00f6re belirlerken g\u00f6zden ka\u00e7\u0131rd\u0131klar\u0131 en \u00f6nemli de\u011fi\u015fken, cilalama s\u0131n\u0131f\u0131d\u0131r. Bir LC konekt\u00f6r\u00fc PC, UPC veya APC olabilir ve her bir cilalama s\u0131n\u0131f\u0131, kay\u0131p b\u00fct\u00e7esi ve geri d\u00f6n\u00fc\u015f kayb\u0131 b\u00fct\u00e7esi a\u00e7\u0131s\u0131ndan farkl\u0131 davran\u0131\u015f g\u00f6sterir. UPC, veri merkezi al\u0131c\u0131-vericilerinde ve \u00e7o\u011fu kurumsal anahtarda varsay\u0131lan ayard\u0131r. 8 derecelik a\u00e7\u0131l\u0131 u\u00e7 y\u00fcz\u00fcnden tan\u0131nan APC ise, fiber \u00fczerinden RF (RF-over-fiber), GPON ve t\u00fcm analog video ba\u011flant\u0131lar\u0131 i\u00e7in gereklidir.<\/p>\n<p>Bir UPC konekt\u00f6r\u00fc genellikle 50 dB veya daha y\u00fcksek bir de\u011fer sa\u011flar; bir APC konekt\u00f6r\u00fc ise 60 dB veya daha y\u00fcksek bir de\u011fer sa\u011flar. Cilalama t\u00fcr\u00fcn\u00fc belirtmeden \u201cSC konekt\u00f6r\u00fc, tek mod\u201d ifadesini i\u00e7eren tedarik \u015fartnameleri, neredeyse her zaman UPC ile sonu\u00e7lan\u0131r; bu, dijital Ethernet i\u00e7in uygun olsa da analog veya RF ba\u011flant\u0131lar\u0131 i\u00e7in yanl\u0131\u015f bir se\u00e7imdir.<\/p>\n<table>\n<thead>\n<tr>\n<th>Leh\u00e7e<\/th>\n<th>Ekleme Kayb\u0131 (tipik)<\/th>\n<th>Geri D\u00f6n\u00fc\u015f Kayb\u0131<\/th>\n<th>En Uygun Uygulama<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PC (fiziksel temas)<\/td>\n<td>0,2 dB<\/td>\n<td>En az 40 dB<\/td>\n<td>Eski tip \u00e7ok modlu OM1 \/ OM2<\/td>\n<\/tr>\n<tr>\n<td>UPC (ultra fiziksel temas)<\/td>\n<td>0,2 dB<\/td>\n<td>En az 50 dB<\/td>\n<td>Dijital Ethernet, veri merkezi<\/td>\n<\/tr>\n<tr>\n<td>APC (8 derecelik a\u00e7\u0131l\u0131 fiziksel temas)<\/td>\n<td>0,15 dB<\/td>\n<td>En az 60 dB<\/td>\n<td>Fiber \u00fczerinden RF, GPON, analog video<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Kabloyu adapt\u00f6rlerin renk kodlamas\u0131na g\u00f6re e\u015fle\u015ftirin: UPC adapt\u00f6rleri mavi (tek modlu) veya bej\/aqua (\u00e7ok modlu) renktedir; APC adapt\u00f6rleri ise her zaman ye\u015fildir. Ye\u015fil renkli olan\u0131 sat\u0131n al\u0131n <a href=\"https:\/\/www.fenxifiber.com\/tr\/product-category\/fiber-optik-adaptor\/\">fiber optik adapt\u00f6rler<\/a> ve UPC <a href=\"https:\/\/www.fenxifiber.com\/tr\/product-category\/sc-konektoru\/\">SC konekt\u00f6rler<\/a> Farkl\u0131 \u00fcreticilerden gelen \u00fcr\u00fcnler birbiriyle uyumlu de\u011fildir, \u00e7\u00fcnk\u00fc ferrule geometrisi mekanik olarak uyumsuzdur. Ayn\u0131 kural \u015funlar i\u00e7in de ge\u00e7erlidir: <a href=\"https:\/\/www.fenxifiber.com\/tr\/product-category\/lc-konnektor\/\">LC konekt\u00f6r<\/a> aileler.<\/p>\n<h2>MPO ve MTP Y\u00fcksek Yo\u011funluklu Kanallar: Farkl\u0131 Bir Kay\u0131p Hesaplamas\u0131<\/h2>\n<p>\u00c7ok fiberli MPO\/MTP kanallar\u0131, \u201cbir e\u015fle\u015ftirilmi\u015f \u00e7ift, bir konekt\u00f6r kayb\u0131na e\u015fittir\u201d \u015feklindeki basit modeli ge\u00e7ersiz k\u0131lar. Her bir MPO konekt\u00f6r\u00fc 8, 12 veya 24 fiber ta\u015f\u0131r ve referans y\u00f6ntemi, dubleks SC ve LC i\u00e7in kullan\u0131lan iki kablolu referans yerine \u00fc\u00e7 kablolu referanst\u0131r. TIA-568'e g\u00f6re yap\u0131lan MPO\/MTP testlerinde \u00fc\u00e7 kablolu y\u00f6ntem kullan\u0131l\u0131r; bu nedenle, tek bir e\u015fle\u015fmi\u015f \u00e7ift tipik olarak yakla\u015f\u0131k 0,35 dB ve en k\u00f6t\u00fc durumda 0,6 dB'lik bir kayba neden olur; bu, tek bir UPC \u00e7iftinin kayb\u0131n\u0131n yakla\u015f\u0131k iki kat\u0131d\u0131r.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/02\/MPO-Connector.jpg\" alt=\"40G, 100G ve 400G paralel optik kanallar i\u00e7in kullan\u0131lan MPO konekt\u00f6r\u00fc\" \/><\/p>\n<p>8 veya 4 fiberin paralel olarak kullan\u0131ld\u0131\u011f\u0131 bir 400G-SR8 veya 400G-SR4.2 kanal\u0131 i\u00e7in, kay\u0131p b\u00fct\u00e7esi t\u00fcm aktif fiberler ile her iki u\u00e7taki MPO-LC ayr\u0131\u015ft\u0131rma kay\u0131plar\u0131n\u0131n toplam\u0131ndan olu\u015fur. Uygulamada, 8 fiberin her biri bir fan-out kablosu ile ba\u011f\u0131ms\u0131z olarak test edilir, ard\u0131ndan en k\u00f6t\u00fc performans g\u00f6steren fiberin kayb\u0131 b\u00fct\u00e7eyle kar\u015f\u0131la\u015ft\u0131r\u0131l\u0131r. \u0130ki e\u015fle\u015ftirilmi\u015f MPO \u00e7ifti ve 30 m OM4 ana fiber \u00fczerinden ge\u00e7en tipik bir 400G kanal\u0131nda, ekleme kayb\u0131 yakla\u015f\u0131k 2,5 dB civar\u0131ndad\u0131r; <a href=\"https:\/\/www.ieee802.org\/3\/\" target=\"_blank\" rel=\"noopener\">IEEE 802.3<\/a> OM4 \u00fczerinden 100 m mesafede SR8 i\u00e7in en fazla 6 dB\u2019lik bir kayba izin verir. <a href=\"https:\/\/www.flukenetworks.com\/blog\" target=\"_blank\" rel=\"noopener\">Fluke Networks MPO polarite notlar\u0131<\/a> ana hat ve ayr\u0131lma kutuplu\u011fu i\u00e7in A \/ B \/ C olmak \u00fczere \u00fc\u00e7 se\u00e7ene\u011fi tek tek inceleyin.<\/p>\n<table>\n<thead>\n<tr>\n<th>MPO\/MTP Bile\u015feni<\/th>\n<th>Tipik Kay\u0131p<\/th>\n<th>TIA-568 standard\u0131na g\u00f6re maksimum de\u011fer<\/th>\n<th>Notlar<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>MPO e\u015fle\u015ftirilmi\u015f \u00e7ift (tek modlu)<\/td>\n<td>0,35 dB<\/td>\n<td>0,6 dB<\/td>\n<td>\u00dc\u00e7 tel referans y\u00f6ntemi<\/td>\n<\/tr>\n<tr>\n<td>MPO e\u015fle\u015ftirilmi\u015f \u00e7ift (\u00e7ok modlu OM4)<\/td>\n<td>0,30 dB<\/td>\n<td>0,5 dB<\/td>\n<td>\u00dc\u00e7 tel referans y\u00f6ntemi<\/td>\n<\/tr>\n<tr>\n<td>MPO-LC fanout (kanal ba\u015f\u0131na)<\/td>\n<td>0,5 dB<\/td>\n<td>1,0 dB<\/td>\n<td>1 e\u015fle\u015ftirilmi\u015f \u00e7ift i\u00e7erir<\/td>\n<\/tr>\n<tr>\n<td>MPO polarite \u00e7evirme (Y\u00f6ntem B)<\/td>\n<td>+ 0,0 dB<\/td>\n<td>+ 0,0 dB<\/td>\n<td>Kutuplar do\u011fruysa kay\u0131p cezas\u0131 uygulanmaz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Polarite kural\u0131, bir kay\u0131p b\u00fct\u00e7esi kalemi de\u011fil, ayr\u0131 bir m\u00fchendislik kontrol\u00fcd\u00fcr; ancak ayn\u0131 kabul testinde yer al\u0131r. Ana kablo ile dallanma kablolar\u0131 aras\u0131ndaki polarite uyu\u015fmazl\u0131\u011f\u0131, bir 400G kanal\u0131n\u0131n fiber s\u00fcreklilik testini ge\u00e7mesine ra\u011fmen ba\u011flant\u0131 kurmada ba\u015far\u0131s\u0131z olmas\u0131n\u0131n en yayg\u0131n nedenidir.<\/p>\n<h2>Uygulamal\u0131 \u00d6rnek: 1310 nm\u2019de 10 km\u2019lik FTTH Backhaul<\/h2>\n<p>Tipik bir k\u0131rsal FTTH ana ta\u015f\u0131y\u0131c\u0131 a\u011f\u0131 i\u00e7in hesaplamalar\u0131 bir araya getirelim: OLT sahas\u0131 ile 1\u00d732 PON ay\u0131r\u0131c\u0131 aras\u0131nda 10 km OS2 tek modlu kablo, her 2 km\u2019de bir f\u00fczyon eklemesi (toplam be\u015f ekleme), her iki u\u00e7taki ODF\u2019de birer e\u015fle\u015ftirilmi\u015f konekt\u00f6r \u00e7ifti (toplamda iki \u00e7ift) ve 16,5 dB\u2019lik ay\u0131r\u0131c\u0131 ek kayb\u0131.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fenxifiber.com\/wp-content\/uploads\/2026\/09\/h2-mtp-vs-mpo-ferrule.jpg\" alt=\"Paralel optik kay\u0131p hesaplamalar\u0131nda kullan\u0131lan MTP ve MPO ferrule geometrileri\" \/><\/p>\n<p>1. Ad\u0131m, fiber zay\u0131flamas\u0131: 10 km ile 0,4 dB\/km \u00e7arp\u0131ld\u0131\u011f\u0131nda 4,0 dB elde edilir.<br \/>\n2. Ad\u0131m, ekleme kayb\u0131: 5 ekleme noktas\u0131 ile 0,3 dB \u00e7arp\u0131ld\u0131\u011f\u0131nda 1,5 dB elde edilir.<br \/>\n3. Ad\u0131m, konekt\u00f6r kayb\u0131: 2 e\u015fle\u015fmi\u015f \u00e7ift \u00e7arp\u0131 0,75 dB, 1,5 dB\u2019ye e\u015fittir.<br \/>\n4. Ad\u0131m, ay\u0131r\u0131c\u0131 kayb\u0131: 1 \u00e7arp\u0131 16,5 dB, 16,5 dB\u2019ye e\u015fittir.<br \/>\nToplam pasif ba\u011flant\u0131 kayb\u0131: 23,5 dB.<\/p>\n<p>28 dB optik b\u00fct\u00e7eye sahip bir B+ S\u0131n\u0131f\u0131 GPON OLT i\u00e7in, bu durum da\u011f\u0131t\u0131m b\u00f6l\u00fcm\u00fc ve ONT marj\u0131 i\u00e7in 4,5 dB\u2019lik bir pay b\u0131rak\u0131r. 500 m OS2 kablosu ve iki e\u015fle\u015ftirilmi\u015f \u00e7ift i\u00e7eren da\u011f\u0131t\u0131m b\u00f6l\u00fcm\u00fc, yakla\u015f\u0131k 0,7 dB\u2019lik bir kay\u0131p ekler; bu da b\u00fct\u00e7enin olduk\u00e7a alt\u0131nda kal\u0131r. D\u0131\u015f mekan <a href=\"https:\/\/www.fenxifiber.com\/tr\/product-category\/fiber-sonlandirma-kutusu\/\">fiber sonland\u0131rma kutular\u0131<\/a> Bina giri\u015findeki sistemlerin boyutland\u0131r\u0131lmas\u0131, belirtilen mesafeye g\u00f6re de\u011fil, en k\u00f6t\u00fc senaryoya g\u00f6re yap\u0131lmal\u0131d\u0131r.<\/p>\n<h2>Karar A\u011fac\u0131: Ba\u011flant\u0131n\u0131z \u0130\u00e7in Ekleme Kayb\u0131 B\u00fct\u00e7esini Nas\u0131l Olu\u015fturursunuz?<\/h2>\n<p>Farkl\u0131 ba\u011flant\u0131 t\u00fcrleri, farkl\u0131 karar yollar\u0131n\u0131 izler. Bir hesap tablosunu a\u00e7madan \u00f6nce, bu a\u011fac\u0131 kullanarak her bir bile\u015fen i\u00e7in do\u011fru de\u011ferleri se\u00e7in.<\/p>\n<ol>\n<li>Tek modlu ve 2 km'den uzun ise, TIA-568 tek modlu en k\u00f6t\u00fc durum de\u011ferlerinden yola \u00e7\u0131k\u0131n, her 1 ila 2 km'de bir eklemeyi say\u0131n ve malzeme listesinde (BOM) belirtilen GR-326 Polonya s\u0131n\u0131f\u0131n\u0131 uygulay\u0131n.<\/li>\n<li>Tek modlu ve 2 km\u2019den k\u0131sa ise, fiber zay\u0131flamas\u0131 ihmal edilebilir d\u00fczeydedir. B\u00fct\u00e7enin b\u00fcy\u00fck k\u0131sm\u0131n\u0131 konekt\u00f6r \u00e7iftleri olu\u015fturur; her bir patch paneli ve da\u011f\u0131t\u0131m kablosunu ayr\u0131 bir e\u015fle\u015ftirilmi\u015f \u00e7ift olarak say\u0131n.<\/li>\n<li>Veri merkezi s\u0131ralar\u0131nda \u00e7ok modlu OM3 veya OM4 kullan\u0131l\u0131yorsa, kablo uzunlu\u011fu 50 m\u2019den fazla oldu\u011fu takdirde 850 nm\u2019lik en k\u00f6t\u00fc durum senaryosunu (3,5 dB\/km) dikkate al\u0131n. 50 m'den k\u0131sa mesafelerde, tipik 3,0 dB\/km de\u011ferini kullan\u0131n ve uygulama s\u0131n\u0131r\u0131na g\u00f6re hesaplama yap\u0131n (100GBASE-SR4 = maksimum 1,5 dB kanal kayb\u0131).<\/li>\n<li>Ba\u011flant\u0131da bir MPO\/MTP ana hatt\u0131 bulunuyorsa, \u00fc\u00e7 kablolu referans de\u011ferini kullan\u0131n, MPO-LC fanout\u2019unu ayr\u0131 bir kay\u0131p hatt\u0131 olarak say\u0131n ve ana hat ba\u015f\u0131na de\u011fil, fiber ba\u015f\u0131na b\u00fct\u00e7e ay\u0131r\u0131n.<\/li>\n<li>Ba\u011flant\u0131da bir PON ay\u0131r\u0131c\u0131 bulunuyorsa, ay\u0131r\u0131c\u0131n\u0131n belirtilen ekleme kayb\u0131n\u0131 (genellikle 1\u00d732 i\u00e7in 16,5 dB, 1\u00d716 i\u00e7in 13,5 dB) tek bir kalem olarak ekleyin ve geri kalan k\u0131sm\u0131 OLT s\u0131n\u0131f\u0131na dahil edin.<\/li>\n<li>FTTA veya d\u0131\u015f mekan 5G kullan\u0131l\u0131yorsa, s\u0131cakl\u0131k kaymas\u0131 i\u00e7in en az 1 dB\u2019lik \u00e7evresel marj ekleyin ve her d\u0131\u015f mekan ba\u011flant\u0131 noktas\u0131nda IP67 s\u0131n\u0131f\u0131 fiber sonland\u0131rma kutular\u0131 kullan\u0131n.<\/li>\n<\/ol>\n<p>En net tedarik kontrol\u00fc, her bir bile\u015feni, birim ba\u015f\u0131na kayb\u0131, adedi ve toplam tutar\u0131 listeleyen tek sayfal\u0131k bir tablodur. Dosyay\u0131 eline alan herkes \u2013 m\u00fchendis, kurulumcu veya denet\u00e7i \u2013 her bir dB\u2019nin nereden geldi\u011fini g\u00f6rebilir. Bu tabloyu proje klas\u00f6r\u00fcne kaydedin; \u00f6n\u00fcm\u00fczdeki on y\u0131l boyunca yap\u0131lacak ta\u015f\u0131nma ve de\u011fi\u015fiklikler i\u00e7in bir referans kayna\u011f\u0131 olacakt\u0131r.<\/p>\n<h2>S\u0131k Sorulan Sorular<\/h2>\n<p><strong>S1. \u0130ki e\u015fle\u015ftirilmi\u015f konekt\u00f6r \u00e7ifti bulunan yepyeni bir OS2 ba\u011flant\u0131s\u0131 i\u00e7in ger\u00e7ek\u00e7i ve sahada test edilmi\u015f bir sinyal kayb\u0131 de\u011feri nedir?<\/strong><br \/>\nC: 1310 nm'de 1 km'lik bir mesafede, toplam ba\u011flant\u0131 kayb\u0131 u\u00e7tan uca genellikle 1,0 ile 1,6 dB aras\u0131nda \u00f6l\u00e7\u00fcl\u00fcr. 2,0 dB'nin \u00fczerindeki de\u011ferler genellikle konekt\u00f6rlerden birinin temizlenmesi veya yeniden tak\u0131lmas\u0131 gerekti\u011fini g\u00f6sterir.<\/p>\n<p><strong>Soru 2. Hesaplanan b\u00fct\u00e7enin \u00f6tesinde ne kadar bir marj b\u0131rakmal\u0131y\u0131z?<\/strong><br \/>\nC: TIA-568 standard\u0131nda zaten k\u00fc\u00e7\u00fck bir m\u00fchendislik pay\u0131 \u00f6ng\u00f6r\u00fclm\u00fc\u015ft\u00fcr. Bunun \u00f6tesinde, eskimeye kar\u015f\u0131 ek yerleri i\u00e7in 1 dB ve gelecekteki ta\u015f\u0131nma ve de\u011fi\u015fiklikler i\u00e7in 0,5 ila 1 dB ay\u0131r\u0131n. Genel kural, hesaplanan b\u00fct\u00e7enin y\u00fczde 10 ila 15\u2019i kadard\u0131r ve bu rakam yukar\u0131 yuvarlan\u0131r.<\/p>\n<p><strong>Soru 3. Resmi TIA-568 numaralar\u0131n\u0131 nereden bulabilirim?<\/strong><br \/>\nC: TIA-568.0-D, TIA-568.3-D ve TIA-604 serisi \u00fcr\u00fcnleri \u015fu adresten sat\u0131n al\u0131nabilir: <a href=\"https:\/\/tiaonline.org\/\" target=\"_blank\" rel=\"noopener\">TIA \u00e7evrimi\u00e7i ma\u011fazas\u0131<\/a>. Fiber Optik Derne\u011fi <a href=\"https:\/\/www.foa.org\/tech\/lossbudg.htm\" target=\"_blank\" rel=\"noopener\">zarar b\u00fct\u00e7esi referans\u0131<\/a> ayn\u0131 de\u011ferleri serbest bir \u00e7al\u0131\u015fma k\u0131lavuzu bi\u00e7iminde listeler.<\/p>","protected":false},"excerpt":{"rendered":"<p>TIA-568 ve GR-326 standartlar\u0131n\u0131 referans alarak fiber giri\u015f kayb\u0131 b\u00fct\u00e7elerini hesaplay\u0131n. Bu k\u0131lavuz, tedarik i\u00e7in haz\u0131r bir teknik \u00f6zellik kontrol listesi ile konekt\u00f6r, ekleme ve MPO\/MTP hesaplamalar\u0131n\u0131 kapsamaktad\u0131r.<\/p>","protected":false},"author":1,"featured_media":409,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/posts\/1141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/comments?post=1141"}],"version-history":[{"count":0,"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/posts\/1141\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/media\/409"}],"wp:attachment":[{"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/media?parent=1141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/categories?post=1141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fenxifiber.com\/tr\/wp-json\/wp\/v2\/tags?post=1141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}