FTTH System Devices and Equipments

FTTH system တစ္ခုမွာ အဓိက equipments ၃ ပိုင္းရွိပါတယ္၊ ISP/Exchange ဖက္မွာထားမဲ႕ OLT(Optical Line Terminal), ၾကားထဲက Cabinet,Curb,Premise Point မွာထားရမဲ႔ Splitter/Eth-Switch ေတြနဲ႔ customers ေနရာမွာ တပ္ဆင္ရမယ္႕ ONT/ONU (Optical Network Terminal/Unit) ျဖစ္ပါတယ္။

FTTH System, Main Equipments

OLT ေတြမွာ  WDM Coupler, Internet Access , Voice Gateway, VoIP Soft-switch Interface, Video Access စတဲ႔ ဖန္ရွင္ေတြပါရွိပါတယ္။

Optical Line Terminal Device

ပုံမွာ 1/32 Splitter တစ္ခုကို ေဖၚျပထားပါတယ္၊ ေအာက္ကေတာ႔ Splitter ေတြတပ္ဆင္တဲ႔ Outdoor Cabinet တစ္ခုပါ။

1/32 PON Splitter
FTTH PON Splitter Cabinet

ONT/U မွာ Indoor CPE နဲ႔ Outdoor CPE ႏွစ္မ်ိဴးရွိပါတယ္၊ CPE ဆိုတာကေတာ႔ Customer Premise Equipment ပါ၊ တနည္းအားျဖင္႔ Customer က responsibility ရွိတဲ႔ သုံးစြဲသူေနရာမွာ ထားတဲ႔ equipment ကိုေခၚပါတယ္၊ အေပၚပုံက Indoor type OLT ပါ၊ ေနာက္တစ္ပုံကေတာ႔ Outdoor OLT ပါ၊ Outdoor မွာ အျပင္ enclosure, ဘက္ကပ္ပါဝါအတြက္ Battery, Eth/Gigabit Eth port, Telephone ports ေတြပါဝင္တာ ေတြ႔ရမွာပါ။

Optical Network Terminal (Indoor CPE)
Optical Network Terminal (Outdoor CPE)
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