Cung ghi '4G CPE', gia co the chenh gap 3. Khong phai hang nay chat chem — la thong so ngam khac han. Biet 5 muc duoi, ban khong tra tien thua cung khong mua nham ban mong.
1. Linh kien va do ben
- Cong nghiep: chip cong nghiep, tan nhiet nhom, vo kim loai, MTBF cao.
- Dan dung: chip pho thong, vo nhua, chay lien tuc 24/7 de nong chet.
- Chenh gia phan lon nam o linh kien chiu tai dai han.
2. Dai nhiet
- Cong nghiep: -40°C ~ +75°C, gan tram, ham, ngoai troi.
- Dan dung: 0°C ~ 40°C, chi trong nha co dieu hoa.
- Lap ngoai troi ma dung ban dan dung -> mua dong/mua he chap chon.
3. Chung nhan
- Cong nghiep: CE/FCC/RoHS, doi khi ATEX cho moi truong no.
- Dan dung: thuong chi bai test co ban.
- Hang xuat di thi truong kho thuong can chung nhan cong nghiep moi thong quan.
4. Bao tri firmware & 5. Cam ket cung ung
- Cong nghiep: hang cam ket cap nhat firmware nhieu nam, giu nguyen model de thay the.
- Dan dung: model thay doi lien tuc, firmware bo som.
- Cho du an dai han, 'hang con ban' quan trong khong kem thong so.
Dan dung du khi thiet bi nam trong nha, chay ban ngay. Ra troi, chay 24/7, xuat khau — luc do ban cong nghiep khong phai dat, la bat buoc.