§1 Cov teeb meem Terminology - Yog vim li cas Ob lo lus no plooj ua ke
Ua ntej muab piv rau lawv, peb yuav tsum lees paub qhov pom tseeb: kev lag luam siv cov ntsiab lus no xoob. Tshawb nrhiav txhua tus neeg muag khoom catalog thiab koj yuav pom ib qho khoom lag luam hu ua "FTTH Fiber Distribution Box / FAT / OTB / FTB." Ntawm peb tus kheej qhov chaw, ntau lub thawv xa khoom tau xa mus rau hauv lub thawv txiav tawm. Qhov no tsis yog sloppiness - nws qhia qhov tseeb tiag: ob lub qhov rooj sib koom feem ntau ntawm lawv cov khoom siv sab hauv. Ob leeg kho cov khoom xa tuaj, ob qho tib si tuav lub tais splice, ob qho tib si tam sim no adapters, thiab ob qho tib si tswj lub vojvoog khoov.
Yog li cov ntawv sib tshooj vim qhovkho vajtsesib tshooj. Dab tsi tsis sib tshooj yog qhovua haujlwm hauv lub network. Ntawm no yog daim ntawv qhia terminology kom haum rau ua ntej nyeem cov seem:
| Lub sij hawm | Stands Rau | Qhov Nws Tiag Tiag |
|---|---|---|
| FTB | Fiber Termination Box | Ib lub thawv uas txiav cov fibers thiab nthuav tawm cov chaw nres nkoj txuas. Tsis muaj kev sib cais. |
| OTB | Optical Termination Box | Synonym rau FTB. Feem ntau nyob rau sab hnub tuaj Asia thiab Middle East kev yuav khoom. |
| FDB | Fiber Distribution Box | Ib lub thawv uas faib ib lub feeder rau hauv ntau lub tee, feem ntau ntawm PLC splitter. |
| FAT | Fiber Access Terminal | Ib sab nraum zoov (ncej / phab ntsa) faib lub thawv. Functionally FDB ua rau thaj chaw. |
| ODF | Optical Distribution Frame | Cov tsiaj sib txawv - khib-mounted, siab-nruj ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom nti |
§2 Lub 3-Axis Sib Piv: Muaj nuj nqi, Txoj Haujlwm, Splitter
Tsis nco qab cov npe. Peb axes no yog tag nrho qhov sib txawv. Yog tias koj nyob hauv lub rooj no, koj yuav tsis yuam kev - xaj dua.
| Axis | Fiber Termination Box (FTB) | Fiber Distribution Box (FDB / FAT) |
|---|---|---|
| Core muaj nuj nqi | Txiav & txuas - splice cov fibers tuaj rau pigtails, nthuav tawm lawv ntawm cov chaw nres nkoj adapter | Split & faib - faib ib lub feeder fiber ntau rau hauv ntau qhov tso tawm |
| Teeb liab topology | Ib qho hauv → ib qho tawm (dhau- dhau / hla- txuas) | Ib qho hauv → ntau tawm (sab hauv) |
| Puas muaj PLC splitter? | Tsis muaj - splice tais & adapters nkaus xwb* | Yog - 1 × 8 / 1 × 16 / 1 × 32 PLC splitter yog cov ntsiab lus txhais |
| Network txoj hauj lwm | Cov ceg kawg: lub tsev nkag, MDU riser, cov neeg siv khoom hauv tsev, cov ntaub ntawv- phab ntsa | Txheej txheej: txoj kev txee, ncej- sab saum toj node, ntawm feeder thiab tee |
| Cov tseem ceeb suav | 2-24 cores (feem ntau 2-4 ntawm tus neeg siv khoom kawg) | 8–24 poob chaw nres nkoj + 1–2 feeder inputs + splitter qhov |
| Cov neeg siv tau txais kev pab | Ib tus neeg siv khoom, lossis ib pab pawg me me | Ntau tus neeg siv khoom los ntawm ib qho khoom noj |
| Mounting | Phab ntsa, yaug, lossis khib (sab hauv tsev -leaning) | Phab ntsa lossis ncej, hardened rau sab nraum zoov (IP65–IP68) |
| Insertion poob ntxiv | ~ 0 dB (connectors / splices nkaus xwb) | Splitter poob - xws li ~ 11 dB rau 1 × 8, ~ 14 dB rau 1 × 16 |
* Lub hnub qub tseem ceeb: ntau lub thawv FTTH compactua tautxais ib tug me me splitter. Cov ntaub ntawv hybrid yog §5. Lub ntsiab lus huv saum toj no yog qhov pib, tsis yog tag nrho zaj dab neeg.
§3 Ob qhov xwm txheej uas ua rau qhov sib txawv ntawm qhov sib txawv
Scenario A - MDU lub tsev nkag (lub thawv kaw)
Ib txoj hlua khi los ntawm txoj kev mus txog 12- chav tsev tsev. Cov fibers twb muab faib nyob rau hauv ib txoj kev txee. Nyob rau hauv lub tsev koj yuav tsum tau splice cov khoom xa tuaj rau pigtails thiab tam sim no huv si SC / APC chaw nres nkoj kom txhua chav tsev poob tuaj yeem patched. Tsis muaj ceg ntoo tshwm sim ntawm no - kev sib cais twb tshwm sim. Qhov no yog ibtermination box. Core suav taug qab cov units tau txais kev pab ntxiv rau kev loj hlob headroom; 12–24 chaw nres nkoj phab ntsa-mount FTB yog ib txwm.
Dab tsi mus rau PO
Phab ntsa-mount FTB, 12–24 chaw nres nkoj, SC/APC adapters, IP65 yog tias qhov chaw nkag pom huab cua, IP40 yog qhov huv hauv tsev riser. Kev ntsuas hluav taws kub (UL94 V-0 vaj tse) tseem ceeb tshaj qhov ntsuas IP nyob rau sab hauv tsev. Tsis muaj cov kab lus splitter.Scenario B - Txoj kev / ncej faib ntawm (lub thawv faib)
Ib lub feeder fiber tuaj txog ntawm tus ncej pab pawg ntawm 16 lub tsev. Ntawm no yog qhov uas ib qho -rau- ntau qhov sib cais yuav tsum tshwm sim. Lub thawv yuav tsum tuav lub 1 × 16 PLC splitter, lees txais cov tswv yim feeder, thiab nthuav tawm 16 poob-cable ports - tag nrho cov tawv tawv tiv thaiv UV, nag, thiab kub viav vias. Qhov no yog ibfaib lub thawv(los yog vim nws yog ncej-mounted sab nraum zoov, aFAT). Lub splitter yog vim li cas lub thawv muaj.
Dab tsi mus rau PO
Sab nraum zoov FDB / FAT, 16 qhov chaw nres nkoj + feeder input, ua ntej -loaded 1 × 16 PLC splitter (SC/APC, G657A2 pigtails), IP65 yam tsawg kawg nkaus - IP68 rau ncej- saum lossis hauv qab- qib. UV-stabilized PC + ABS lossis PP + GF vaj tsev. Qhov no yog ib kab khoom uas suav nrog lub splitter, tsis yog ob.§4 Qhov Chaw Sib Tw Yog Tiag - Hybrid Boxes
Lub ntsiab txhais huv hauv §2 muaj ib qho kev zam ncaj ncees. Ntau lub thawv FTTH compact yog tsim los ualos yogtxoj haujlwm: lawv suav nrog lub tais me me uas lees txais 1 × 2, 1 × 4, lossis 1 × 8 mini PLC splitteryog tias koj xav tau ib qho, thiab ua haujlwm raws li lub thawv txiav tawm dawb yog tias koj tsis ua. Qhov no yog vim li cas ib qho khoom lag luam raug cai nqa ob daim ntawv lo.
Qhov kev hloov pauv no muaj txiaj ntsig zoo - ib SKU npog ob lub luag haujlwm, ua kom yooj yim cov khoom muag - tab sis nws tsim cov cuab yeej khoom: cov neeg yuav khoom xav tias "nws muaj qhov sib cais" txhais tau tias "nws xa nrog lub splitter." Nws feem ntau tsis yog. Splitters tau teev tshwj xeeb tshwj tsis yog tias koj thov kom ua ntej -loaded configuration.
§5 Sib piv cov khoom tiag rau txhua lub luag haujlwm
Yog tias koj xav tau lub thawv txiav tawm (pass- dhau, tsis muaj kev sib cais)
Yog tias koj xav tau lub thawv faib khoom (ib qho - rau - ntau, cais sab hauv)
Rau sab nraum zoov splice tiv thaiv upstream ntawm ob lub thawv
§6 Kev Nyeem Ntawv
Kev ntsuam xyuas IP, cov ntaub ntawv, sab hauv tsev vs sab nraum zoov, thiab daim ntawv teev cov khoom muag uas npog txhua hom thawv.
Vim li cas lub thawv faib ntxiv poob - tus lej splitter tom qab qhov ntxig - cov lej poob hauv §2.
Centralized vs cascaded splitting - qhov twg FDB thiab FTB zaum hauv architecture.
Yuav ua li cas tso lub davhlau ya nyob twg nkag (FAT) txheeb ze rau tus neeg siv khoom ONT.
§ 7 FAQ
Termination Boxes & Distribution Boxes - Factory Direct
Glory Optical - vertically integrated chaw tsim tshuaj paus nyob rau hauv Ningbo txij thaum 2008. FTB termination boxes, FDB/FAT tis thawv (loaded los yog unloaded), txuam PLC splitters 1 × 2 rau 1 × 64, thiab IP68 splice kaw. Xa mus rau cov neeg ua haujlwm thiab ISP hauv 50+ lub teb chaws. Qhia peb qhov twg lub thawv zaum hauv koj lub network thiab peb yuav paub meej tias hom yog ua ntej koj xaj.
