Fiber hal-hab ah: G652D vs G657A2
1/ Waa maxay fiber-ka hal-qaabka ah?
+ Fiilada hal-qaabka ah waa fiilada indhaha ee loogu talagalay inay qaado hal qaab oo iftiin ah - qaabka isdhaafka ah.
+ Faybarka indhaha ee hal-qaabka caadiga ah wuxuu leeyahay dhexroor udub dhexaad ah oo u dhexeeya 8 ilaa 10.5 μm (caadiyan waa 9 μm) iyo dhexroor dahaadh ah oo ah 125 μm.
+ OS1 iyo OS2 waa fiber optical ah oo hal qaab ah oo caadi ah oo 9/125 μm ah. Labadaba waxaa loo isticmaalaa hirarka hirarka 1310 nm iyo 1550 nm.
+ Fiilada hal-qaabka ah waxaa loogu talagalay gudbinta masaafada dheer iyo xawaaraha sare, oo inta badan taageerta masaafada u dhaxaysa 2 km ilaa 100-160 km.
+ Qaab-dhismeedka fiber-ka hal-qaab ee caadiga ah:
Aasaaska:Dhexroorka 8–9 μm
Dahaarka:Dhexroorka 125 μm
Kaydka:Dhexroorka 250 μm
Jaakad:Dhexroorka 600 ama 900 μm
2/ Fiber hal-qaab ah oo G652D ah:
+ G652D Fiber-ka Hal-qaabka ah waa nooca ugu badan ee fiber-ka hal-qaabka caadiga ah (SMF), kaas oo ay ITU-T u dejiso isgaarsiinta xawaaraha sare iyo masaafada dheer.
+ Waxay leedahay tignoolajiyada "biyo-xireenka ugu sarreeya", taasoo yaraynaysa luminta calaamadaha ee kala duwanaanshaha hirarka 1383 nm.
+ Waxaa loo yaqaanaa bandwidth sare, hoos u dhac yar, iyo iswaafajin gadaal ah, waa mid ku habboon shabakadaha isgaarsiinta, Shabakadaha Deegaanka Metropolitan (MAN), iyo codsiyada Fiber to the Home (FTTH).
3/ G657A2 Fiber hal-qaab ah:
+ G.657A2 Fiber-ka Hal-qaabka ah waa fibre-qaab ah oo aad u dabacsan oo aan lahayn dareen, oo u hoggaansan heerarka ITU-T, oo loo sameeyay inuu ku shaqeeyo luminta calaamadda ugu yar marka la eego radi-ga qalloocan (ilaa 7.5mm).
+ Si buuxda ayuu ula jaanqaadayaa fiilooyinka G.652D, taasoo ka dhigaysa mid ku habboon fiilooyinka FTTH ee cufnaanta badan, fiilooyinka gudaha, iyo rakibaadda meel yar oo leh meel sare oo qaloocsan.
4/ Fiber hal qaab ah G652D vs G657A2:
| Shay | G652D SMF | G657A2 SMF |
| Gacanka laabashada | 30mm | 7.5mm |
| Hoos u dhac ku yimaada 1310 nm | 0.36dB/km | 0.36dB/km |
| Hoos u dhac ku yimaada 1550 nm | 0.22dB/km | 0.22dB/km |
| Codsiga ugu Fiican | Masaafada fog ee dibadda loogu wareejinayo | Fiilada FTTH ee hoos u dhigta, rakibidda gudaha, xarunta xogta cufnaanta sare, garoonka bannaanka oo la isticmaalayo |
| Qiimaha | kharash-ool ah | kharash sare |
Waqtiga boostada: Abriil-23-2026