{"id":521,"date":"2016-12-02T12:47:32","date_gmt":"2016-12-02T10:47:32","guid":{"rendered":"https:\/\/burakcaliskan.org\/blog\/?p=521"},"modified":"2017-03-09T09:30:28","modified_gmt":"2017-03-09T07:30:28","slug":"dslam-gpon","status":"publish","type":"post","link":"https:\/\/burakcaliskan.org\/blog\/dslam-gpon\/","title":{"rendered":"DSLAM GPON"},"content":{"rendered":"

\"GPON\"<\/a><\/p>\n

<\/p>\n

\"DSLAM\"<\/a><\/p>\n

\"Draytek<\/a><\/p>\n

DSLAM<\/strong> (Digital Subscriber Line Access Multiplexer) Digital Abone Hatt\u0131 Eri\u015fim \u00c7oklay\u0131c\u0131s\u0131\/Payla\u015ft\u0131r\u0131c\u0131s\u0131; bir Network \u00e7evre birimi\/ayg\u0131t\u0131 olup, umumiyetle bir Telefon \u0130\u015fletmesinde (T\u00fcrkiye’de \u00f6rnek olarak TT) merkezi sistem mekanizmas\u0131 olarak, bir\u00e7ok m\u00fc\u015fteriye\/aboneye DSL ba\u011flant\u0131s\u0131n\u0131 tek bir y\u00fcksek h\u0131zl\u0131 ATM hatt\u0131 \u00fczerinden verir.<\/p>\n

DSLAM bir\u00e7ok DSL abonesinden gelen sinyalleri toplar, ve y\u00fcksek h\u0131zl\u0131 bir BACKBONE (network omurga) hatt\u0131na MULTIPLEXER (\u00c7oklay\u0131c\u0131) teknolojisini kullanarak iletir. DSLAM DSL sinyalini ald\u0131\u011f\u0131 zaman, POTS da\u011f\u0131t\u0131c\u0131l\u0131 bir ADSL modem arac\u0131l\u0131\u011f\u0131yla ses ve veriyi alg\u0131lar; ses PSTN’e , veri ise DSLAM a g\u00f6nderilir, ordan da ATM arac\u0131l\u0131\u011f\u0131yla Internete \u00e7\u0131kar. Aboneye cevab\u0131 da ATM sonra DSLAM ve ADSL ile geri gelir.<\/p>\n

VDSL<\/strong> modemler VDSL<\/strong> sinyalini \u00fcretebilecek DSLAM’lere ba\u011flan\u0131rlar, VDSL DSLAM’ler katman iki protokol\u00fc olarak EFM (Ethernet in First Mile) protokol\u00fcn\u00fc kullan\u0131rlar. VDSL teknololojisinde kullan\u0131lan ta\u015f\u0131ma frekanslar\u0131n\u0131n y\u00fcksekli\u011finden dolay\u0131 ADSL’e k\u0131yasla daha k\u0131sa mesafelerde hizmet verilebilmesine kar\u015f\u0131n, \u00e7ok daha y\u00fcksek bant geni\u015fliklerinden yararlan\u0131labilinir. 200 metreye kadar 100 Mb\/s bant geni\u015fli\u011fine eri\u015filebilinir. VDSL<\/strong> i\u00e7in FTTB<\/strong>, FTTC<\/strong>, FTTx<\/strong> uygulamalar\u0131 en uygun \u00e7\u00f6z\u00fcmlerdir. 8 portl\u0131 VDSL DSLAM’ler ile FTTB, daha fazla portu olan VDSL DSLAM’ler ile FTTC uygulamalar\u0131 uygudur. VDSL ve VDSL2<\/strong> hakk\u0131nda daha fazla bilgi almak i\u00e7in VDSL ve VDSL2 Nedir adl\u0131 makaleyi okuyabilirsiniz.<\/p>\n

Kullan\u0131lan \u00fcr\u00fcne ba\u011fl\u0131 olarak, DSLAM \u00e7oklay\u0131c\u0131lar\u0131 DSL hatlara baz\u0131 asynchronous transfer mode (ATM) birle\u015fimleri ile ba\u011flan\u0131rlar.<\/p>\n

DSLAM Telefon \u0130\u015fletmelerine en h\u0131zl\u0131 Telefon hat teknolojisini DSL ve en h\u0131zl\u0131 BACKBONE network teknolojisi olan ATM’i \u00f6nerir.<\/p>\n

Daha fazla DSLAM Telefon \u0130\u015fletmesi, daha fazla abone demektir.<\/p>\n

Mesafelere g\u00f6re h\u0131z limitleri<\/strong>
\n25 Mbit\/s at 1,000 feet (~300 m)
\n24 Mbit\/s at 2,000 feet (~600 m)
\n23 Mbit\/s at 3,000 feet (~900 m)
\n22 Mbit\/s at 4,000 feet (~1.2 km)
\n21 Mbit\/s at 5,000 feet (~1.5 km or ~.95 mil)
\n19 Mbit\/s at 6,000 feet (~1.8 km or ~1.14 mil)
\n16 Mbit\/s at 7,000 feet (~2.1 km or ~1.33 mil)
\n1.5 Mbit\/s at 15,000 feet (~4.5 km or ~2.8 mil)
\n800 kbit\/s at 17,000 feet (~5.2 km or ~3.2 mil)<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":526,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[323,396,326,322,325,324,395],"_links":{"self":[{"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/posts\/521"}],"collection":[{"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/comments?post=521"}],"version-history":[{"count":5,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/posts\/521\/revisions"}],"predecessor-version":[{"id":618,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/posts\/521\/revisions\/618"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/media\/526"}],"wp:attachment":[{"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/media?parent=521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/categories?post=521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/burakcaliskan.org\/blog\/wp-json\/wp\/v2\/tags?post=521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}