Neu ban dang hoat dong trong nganh xay dung he thong dien nhe hoac quan tri mang, viec nam vung khai niem cap quang la gi va cac dac tinh vat ly cua no la yeu to then chot de dam bao chat luong cong trinh. Bai viet nay se phan tich cap quang duoi goc nhin cua nha phan phoi chuyen nghiep.

1. Dinh nghia cap quang duoi goc do ky thuat

Cap quang la mot loai cap vien thong su dung anh sang de truyen dan du lieu qua cac soi thuy tinh cuc manh. Diem khac biet lon nhat cua cap quang so voi cac loai cap khac chinh la co che phan xa toan phan, cho phep du lieu di xuyen suot chieu dai day dan voi toc do tiem can van toc anh sang.

2. Cac dong cap quang pho bien trong phan phoi hien nay

De chon dung loai cap, ban can hieu ro moi truong lap dat:

Cap quang treo (ADSS/Hinh so 8): Co day gia cuong kim loai hoac phi kim loai, chuyen dung de keo tren cac cot dien, ngoai troi.

Cap quang luon cong: Co vo boc cung cap, chiu luc nen tot de bao ve soi quang khi keo trong cac duong ong ngam.

Cap quang chon truc tiep: Duoc trang bi them lop vo giap thep (armored) chong lai su can pha cua con trung va ap luc tu long dat.

Cap quang noi bo (Indoor): Thiet ke mem deo, de uon luon trong cac hop ky thuat hoac mang cap ben trong toa nha.

3. 03 Thong so vang khi chon mua cap quang

Khi lam viec voi cac don vi phan phoi cap mang, cap quang, ban can dac biet luu y:

So loi (Core): Tuy nhu cau ma chon loai 2, 4, 8, 12, 24 hay 96 loi. Luon nen mua du so loi de du phong.

Chuan soi: Chon chuan G.652D cho cap Single-mode thong dung hoac chuan OM2/OM3/OM4 cho cap Multi-mode can toc do cuc cao trong khoang cach ngan.

Thuong hieu va CO/CQ: Dam bao san pham co nguon goc ro rang de dap ung tieu chuan nghiem thu cua du an.

4. Tai sao cap quang la tuong lai cua ha tang mang?

Khong chi dung lai o viec ket noi Internet, cap quang con la nen tang cho:

He thong Camera IP do phan giai cao tai cac do thi thong minh.

Mang luoi truyen hinh cap ky thuat so.

Ket noi truc chinh giua cac chi nhanh ngan hang, van phong chinh phu voi tinh bao mat tuyet doi.

Viec hieu ro cap quang la gi giup ban khong chi tiet kiem chi phi dau tu ban dau ma con giam thieu rui ro dut gay, hong hoc trong qua trinh van hanh lau dai.

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