Trong ky nguyen so hoa, toc do internet dong vai tro song con doi voi moi doanh nghiep. Neu ban dang tim kiem giai phap ha tang mang on dinh, viec hieu ro cap quang la gi la buoc dau tien cuc ky quan trong.

Cap quang la gi?

Cap quang (Fiber Optic Cable) la loai cap vien thong duoc lam bang soi thuy tinh hoac nhua tinh khiet, mong nhu soi toc. Thay vi su dung dong dien de truyen tin hieu nhu cap dong truyen thong, cap quang su dung anh sang de truyen tai du lieu.

Cau tao co ban cua mot soi cap quang bao gom:

Core (Loi): Trung tam phan chieu cua soi quang noi anh sang di qua.

Cladding (Lop giap): Vat chat bao quanh loi co chiet suat nho hon de phan xa anh sang tro lai loi.

Buffer coating (Lop vo bao ve): Lop phu deo ben ngoai bao ve soi quang khoi hong hoc va am uot.

Phan loai cap quang pho bien trong phan phoi

Trong linh vuc phan phoi cap mang, hien nay co hai loai cap chinh ma nguoi dung can phan biet:

Cap quang Single-mode (Don mot): Co duong kinh loi nho, chi truyen duoc mot buoc song anh sang. Loai nay thuong dung cho khoang cach xa (hang chuc km) voi bang thong cuc lon.

Cap quang Multi-mode (Da mot): Co duong kinh loi lon hon, cho phep truyen nhieu tia sang cung luc. Thuong duoc su dung trong cac trung tam du lieu, mang noi bo doanh nghiep voi khoang cach ngan.

Tai sao cap quang la lua chon so 1 hien nay?

So voi cap dong, cap quang so huu nhung uu diem vuot troi khien no tro thanh tieu chuan trong lap dat mang:

Toc do sieu nhanh: Kha nang truyen tai du lieu len den hang tram Gbps.

Do suy hao thap: Tin hieu co the di xa hang nghin met ma khong can bo lap.

Khang nhieu dien tu: Do truyen bang anh sang, cap quang khong bi anh huong boi sam set hay cac thiet bi dien cong nghiep.

Bao mat cao: Rat kho de "nghe len" du lieu tren soi quang vi no khong phat ra tin hieu dien tu.

Don vi phan phoi cap quang uy tin

Hieu duoc cap quang la gi chi la khoi dau. De co mot he thong mang hoan hao, ban can chon dung loai cap (Treo, luon cong hay chon truc tiep) tu nhung don vi phan phoi chinh hang. Viec su dung cap kem chat luong se dan den tinh trang gap gay loi, suy hao tin hieu va chi phi bao tri cuc cao.

Ban dang can tu van giai phap cap quang toi uu cho du an cua minh? Hay de lai thong tin hoac lien he voi chung toi de nhan bang bao gia cap quang moi nhat va chiet khau tot nhat cho dai ly!

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