Fiber optics yog thev naus laus zis ntawm kev xa cov ntaub ntawv raws li pulses ntawm lub teeb los ntawm nyias cov iav los yog yas. Hloov chaw ntawm cov khoom siv hluav taws xob los ntawm tooj liab, fiber ntau optic txuas coj photons cia rau hauv cov tub ntxhais ua haujlwm zoo, uas yog vim li cas fiber ntau tuaj yeem nqa tau cov ntaub ntawv ntau dua, ntev ntev, nrog kev cuam tshuam tsawg dua tooj liab Ethernet cable.
Cov lus qhia no suav nrog fiber ntau optics yog dab tsi, qhov sib txuas ntawm fiber ntau lub cev ua haujlwm li cas, OS thiab OM cable pawg koj yuav pom ntawm txhua daim ntawv teev lus, fiber ntau piv rau tooj liab li cas, thiab lub tswv yim kev txiav txim siab rau xaiv txoj cai cable rau koj lub network. Cov piv txwv lean ntawm tiag engineering txwv, tsis yog phau ntawv piav qhia.
Fiber Optics yog dab tsi?
Fiber optics yog siv cov fibers optical xa cov ntaub ntawv siv lub teeb. Ib qho khoom siv kho qhov muag yog ib cov plaub hau - nyias strand ntawmiav los yog, hauv qee qhov luv luv - ncav cuag daim ntawv thov, yas. Ib qho fiber ntau optic cable yog qhov sib dhos ua tiav uas tiv thaiv ib lossis ntau dua ntawm cov fibers nrog lub zog cov tswv cuab, buffers, thiab lub tsho.
Txoj kev yooj yim tshaj plaws los xav txog nws: fiber optics txav cov ntaub ntawv nrog lub teeb es tsis txhob siv hluav taws xob. Ib qho kev hloov pauv ntawd yog qhov ua rau fiber ntau lub caj qaum ntawm lub niaj hnub internet, hyperscale cov chaw zov me nyuam, mobile fronthaul thiab backhaul, thiab FTTH nkag network.
Fiber Optics ua haujlwm li cas?
Ib qho fiber optic txuas hloov hluav taws xob teeb liab mus rau hauv lub teeb, xa lub teeb mus rau hauv ib lub iav tub ntxhais, thiab hloov nws rov qab rau hauv hluav taws xob teeb liab ntawm qhov kawg. Tsib yam tshwm sim ua ntu zus:
- Ib lub cuab yeej (hloov, router, OLT, server NIC) tsim hluav taws xob teeb liab.
- Lub transceiver siv lub laser (rau ib zaug -mode) los yog VCSEL/LED (rau multimode) los hloov lub teeb liab mus rau hauv lub teeb modulated ntawm ib lub wavelength tshwj xeeb - feem ntau 850 nm, 1310 nm, los yog 1550 nm.
- Lub teeb propagates los ntawm cov tub ntxhais fiber ntau, kaw los ntawm tag nrho cov sab hauv xav txog.
- Ib tug photodetector ntawm lub receiver transceiver converts lub teeb rov qab mus rau ib tug hluav taws xob teeb liab.
- Cov cuab yeej txais tau txiav txim siab lub teeb liab thiab hla nws mus rau pawg.
Sab hauv ib qho Optical Fiber: Core, Cladding, Txheej
Txhua qhov optical fiber ntau muaj peb txheej concentric:
- Core- lub iav channel uas lub teeb tau dhau los. Tib hom - hom fiber ntau muaj lub hauv paus ntawm 8-10 µm; multimode fiber ntau feem ntau muaj 50 µm core (62.5 µm hauv legacy OM1).
- Cladding- ib txheej iav nyob ib puag ncig lub hauv paus nrog ib qho qis qis dua qhov ntsuas qhov ntsuas. Telecom fiber ntau siv 125 µm cladding.
- Txheej- txheej tiv thaiv acrylate (feem ntau yog 250 µm) uas tiv thaiv cov iav los ntawm ya raws thiab tuav kev puas tsuaj.
Tshaj li cov fibers liab qab, ib lub cable tiav ntxiv cov hlab tsis muaj, cov xov paj aramid, dej - thaiv cov gel lossis daim kab xev, thiab lub tsho sab nrauv.Loose- raj thiab nruj- buffered tsimua hauj lwm sib txawv heev - xoob- raj rau sab nraum zoov thiab ncaj qha - faus khiav, nruj- buffered rau sab hauv cabling.
Vim li cas Total Internal Reflection Matters
Lub teeb nyob twj ywm hauv cov tub ntxhais vim hais tias cov cladding muaj qhov qis dua qhov taw qhia. Thaum lub teeb hits lub tub ntxhais-cladding ciam teb ntawm ib tug ntiav txaus lub kaum sab xis, nws muaj kev cuam tshuam tag nrho rov qab mus rau hauv lub hauv paus es tsis txhob tso tawm - ib tug phenomenon hu ua tag nrho cov sab hauv xav txog. CovFiber Optic Associationpiav txog qhov no raws li lub hauv paus ntsiab lus uas ua rau kev sib kis tau zoo.
Qhov no kuj yog vim li cas fiber ntau tolerates maj mam khoov. Nws tsis yog vim li cas fiber ntau zam kev tsim txom: ua txhaum lub cable qhov tsawg kawg nkaus khoov vojvoog thiab koj tsim cov macrobending poob; cia cov plua plav zaum ntawm lub ntsej muag kawg ntawm lub ntsej muag thiab koj tsim qhov poob thiab rov qab xav txog.
Hom Tseem Ceeb ntawm Fiber Optic Cables: Tib -Mode vs Multimode
Thawj qhov kev txiav txim siab hauv ib txoj haujlwm fiber ntau yog ib qho -hom lossis multimode. Txhua yam ntxiv - connector, transceiver, nrug, nqi - raws li qhov kev xaiv ntawd.
Tib -Mode Fiber (SMF)
Tib - hom fiber ntau muaj qhov nqaim heev (feem ntau 8-10 µm) uas txhawb nqa ib hom kev nthuav tawm xwb. Lub teeb mus rau hauv qhov tseem ceeb ntawm txoj kab ncaj nraim hauv lub hauv paus, uas tshem tawm cov kev hloov pauv thiab tso cai rau ntev heev.
Tib - hom yog lub neej ntawd rau:
- Telecom ntev -haul thiab metro networks
- ISP pob txha thiab kev sib txuas ua ke
- Lub tsev kawm ntawv thiab lub tsev -rau- tsim cov pob txha
- Data center interconnect (DCI) ntawm qhov chaw
- FTTH, FTTB, thiab lwm yam kev siv network
Niaj hnub no ib leeg - hom fiber ntau yog categorized li OS1 lossis OS2. Qhov sib txawv yog feem ntau hais txog kev siv cable (nruj- buffered vs xoob- raj) thiab attenuation ib kilometer, tsis yog iav nws tus kheej.OS2 yog tus qauv xaiv rau sab nraum zoov, qhov ntev - nrug, thiab FTTH xa tawm, thaum OS1 muaj ntau dua nyob rau hauv kev tswj hwm sab hauv ib puag ncig.
Multimode Fiber (MMF)
Multimode fiber ntau muaj qhov loj dua 50 µm core uas txhawb nqa ntau txoj kev teeb pom kev ib txhij. Qhov ntawd ua rau nws pheej yig dua rau ob peb lub teeb rau hauv - VCSEL transceivers tsis tshua kim dua li DFB lasers siv ntev -haul ib leeg- hom - tab sis txoj kev sib txawv tuaj txog ntawm tus txais ntawm lub sijhawm sib txawv me ntsis, uas txwv tsis pub ncav cuag.
Multimode feem ntau yog siv rau:
- Sab saum toj - ntawm - khib thiab nplooj - kab laug sab txuas hauv ib lub chaw khaws ntaub ntawv
- Server-rau- hloov thiab khaws kev sib txuas
- Lub tsev luv lossis hauv pem teb pob txha
- Lab thiab kuaj ib puag ncig
Cov OM1 txog OM5 pawg suav nrog nce qib siab dua -kev ua haujlwm ntau hom fiber ntau.OM3 thiab OM4 npog feem ntau ntawm cov ntaub ntawv tshiab nruab, nrog OM5 ntxiv thaum wideband luv -wavelength division multiplexing (SWDM) nyob rau hauv kev ua si.
OS1, OS2 and OM1–OM5: Specifications and Typical Reach
Cov lus hauv qab no qhia txog yuav ua li cas txhua pawg ua tau zoo nrog cov nqi Ethernet. Cov duab nyob deb yog los ntawm IEEE 802.3 tus qauv rau PMD cuam tshuam; ntev mus txog yog ua tau nrog tshwj xeeb optics.
| Qeb | Hom Fiber | Core Diameter | Hom Wavelength | Mus txog 10G | Mus txog 40/100G | Kev siv yam |
|---|---|---|---|---|---|---|
| OS 1 | Tib - hom | ~9 µm | 1310/1550 nm | 10 km + | 10-40 km | Sab hauv ib leeg - hom khiav |
| OS 2 | Tib - hom | ~9 µm | 1310/1550 nm | 10-40 km + | 10-80 km nrog optics tsim nyog | Sab nraum zoov, ntev -haul, FTTH, DCI |
| OM 1 | Multimode | 62.5 µm | 850nm ua | 33 m | Tsis pom zoo | Cov cuab yeej cuab tam |
| OM 2 | Multimode | 50 µm | 850nm ua | 82 m | Tsis pom zoo | Cov lag luam qub LANs |
| OM 3 | Multimode (laser-zoo) | 50 µm | 850nm ua | 300 m | 100m ntawm 40G / 100G | Mainstream data center luv ncav cuag |
| OM 4 | Multimode (laser-zoo) | 50 µm | 850nm ua | 400 m | 150m ntawm 40G / 100G | Siab dua - chaw ua haujlwm cov ntaub ntawv |
| OM 5 | Wideband multimode | 50 µm | 850–953 nm | 400 m+ | 150m ntawm 40G / 100G; txhawb SWDM | Data centers npaj SWDM |
Tib -Mode vs Multimode Fiber
| Qhov xwm txheej | Tib -Mod | Multimode |
|---|---|---|
| Core loj | 8–10 µm | 50 µm (62.5 µm rau OM1) |
| Lub teeb qhov chaw | DFB lossis FP laser | VCSEL los yog LED |
| Hom ncav cuag | Kaum kilometers | Txog li ob peb puas meters |
| Optics nqi | Siab dua rau qhov chaw nres nkoj | Txo kom ncav cuag luv |
| Cable nqi | Muab piv, qee zaum qis dua | Sib piv |
| Zoo tshaj rau | Rov qab, FTTH, DCI, txuas ntev | Hauv-- khib, nplooj- qaum, lab |
Ib txoj cai txhim khu kev qha ntawm tus ntiv tes xoo: yog tias qhov txuas yuav puas tawm hauv lub tsev, ua haujlwm rau ib leeg - hom. Yog tias nws nyob hauv ib qho chaw thiab qis dua ob peb puas meters, multimode feem ntau yeej ntawm tag nrho cov nqi.
Vim li cas Fiber Optic Cables txhawb siab Bandwidth dua tooj liab
Fiber's bandwidth kom zoo dua tsis yog kev lag luam - nws los ntawm physics. Optical frequencies yog ob peb qhov kev txiav txim siab ntau dua qhov zaus ua tiav ntawm ib khub twisted, yog li ib qho fiber ntau tuaj yeem hloov kho nrog cov ntaub ntawv ntau dua ib ob. Nrog wavelength division multiplexing, ib txoj hlua ib leeg tuaj yeem nqa tau kaum ob txoj kev ywj pheej ntawm 100G, 200G, lossis 400G txhua.IEEE 802.3twb txhais 400G thiab 800G Ethernet tshaj fiber ntau; tsis muaj dab tsi nyob ze dua tooj liab ntawm qhov muaj txiaj ntsig deb.
Ntev npaum li cas Fiber Optic Cables xa cov ntaub ntawv?
Kev ncav cuag nyob ntawm qeb fiber ntau, lub transceiver, thiab qhov txuas qhov poob peev nyiaj - tsis yog nyob rau hauv cable ib leeg. Raws li cov ntsiab lus siv:
- OM3 / OM4 multimode ntawm 10GBASE-SR: 300 m / 400 m
- OS2 single-mode ntawm 10GBASE-LR (1310 nm): 10 km
- OS2 ntawm 10GBASE-ER (1550 nm): 40 km
- OS2 ntawm 10GBASE-ZR nrog kab- sab optics: 80 km
- Coherent DWDM systems: ntau pua mus rau txhiab kilometers nrog amplifiers
Puas yog Fiber ntau ruaj ntseg dua tooj liab?
Fiber ntau yog ib qho nyuaj rau kais covertly tshaj tooj liab Ethernet. Inserting passive kais rau ntawm fiber ntau feem ntau ua rau ntsuas qhov poob thiab rov qab xav txog, ob qho tib si ntawm OTDR lossis kev saib xyuas txuas txuas tuaj yeem ntes tau. Tooj liab, los ntawm qhov sib txawv, xau hluav taws xob hluav taws xob uas tuaj yeem khaws tau nyob ze.
Qhov no tsis ua rau fiber ntau "kev ruaj ntseg" ntawm nws tus kheej - tus txiav txim siab tawm tsam nrog kev nkag mus rau lub cev thiab cov cuab yeej sib txuas txoj cai tseem tuaj yeem siv cov fiber ntau. Kho fiber ntau raws li lub cev muaj zog- txheej txheej, tsis yog qhov hloov pauv rau kev nkag mus thiab tswj kev nkag.
Qhov tsis zoo thiab kev txwv ntawm Fiber Optics
Fiber yog cov lus teb zoo rau feem ntau siab - kev sib txuas ua haujlwm, tab sis nws muaj qhov tsis zoo tiag tiag.
Tus nqi pib siab dua ntawm Short Links
Rau 20 m khiav ntawm qhov hloov pauv thiab lub desktop, Cat 6 thaj qaum yog nrawm dua, pheej yig dua, thiab yooj yim dua li lwm qhov fiber ntau. Fiber transceivers, splicing cov cuab yeej, fusion splicers, thiab OTDR xeem cov cuab yeej ntxiv nqi peev.
Ntau Tshwj Xeeb Installation
Fiber tiv thaiv kev ua haujlwm tsis zoo.Kev txhim kho kom raugtxhais tau hais tias hwm khoov vojvoog, tswj kev rub nro, ua kom cov khoom sib txuas huv si, thiab ntsuas txhua qhov kev txiav tawm. Hla cov kauj ruam no tsim cov kev sib txuas uas dhau qhov kev xeem txuas ntxiv tab sis ua tsis tiav hauv kev thauj khoom.
Tsis muaj Native Power Delivery
Txheem fiber ntau tsis muaj hluav taws xob tam sim no, yog li nws tsis tuaj yeem xa PoE rau cov koob yees duab, nkag mus rau cov ntsiab lus, lossis xov tooj. Hybrid cables uas sib txuas fiber ntau nrog tooj liab fais fab conductors muaj, tab sis lawv yog cov khoom sib txawv.
Compatibility Pitfalls
Kev sib txuas ntawm fiber ntau tsuas yog ua haujlwm thaum txhua qhov kev pom zoo: fiber ntau (SM lossis MM), connector (LC, SC, MPO), polish (PC, UPC, APC), wavelength, thiab transceiver ncav cuag txhua tus yuav tsum sib phim. Tsis sib haum APC thiab UPC cov khoom sib txuas, piv txwv li, yuav ua rau lub cev sib raug zoo tab sis ua rau qhov tsis txaus ntseeg tsis txaus ntseeg.
Fiber Optic Cable vs Copper Cable
| Qhov xwm txheej | Fiber Optic Cable | Tooj liab (Cat 6/6A/8) |
|---|---|---|
| Teeb liab nruab nrab | Teeb | Hluav taws xob tam sim no |
| Max Ethernet ncav cuag | 10–80 km (ib zaug-mos) | 100 m (zoo), 30 m rau Cat 8 |
| Tus nqi txhawb siab tshaj plaws | 400G thiab 800G hauv IEEE 802.3 | 40G dhau Cat 8 |
| EMI tsis kam | Tiv thaiv kab mob | Raug mob |
| Lub zog ntawm cable | Tsis muaj haiv neeg | PoE/PoE+/PoE++ mus txog 90 W |
| Kev txiav txim siab | Kev txawj ua haujlwm, feem ntau fusion splicing | Txheem RJ45 crimping |
| Upfront nqi (luv txuas) | Siab dua | qis |
| Ntev - lub sij hawm scalability | Zoo heev | txwv |
Cov lus teb ncaj ncees rau "fiber lossis tooj liab" yog "ob leeg, nyob rau hauv lawv qhov chaw." Lub tsev kawm ntawv niaj hnub no feem ntau khiav ib zaug - hom fiber ntau ntawm lub nraub qaum, multimode fiber ntau hauv cov ntaub ntawv chaw, thiab tooj liab los ntawm kev nkag mus rau cov khoom siv kawg.
Common Applications ntawm Fiber Optics
Telecom thiab Internet Backbone
Ntev - cov cab kuj khiav ntau txhiab mais ntawm ib zaug - hom fiber ntau ntawm cov nroog, teeb nrog DWDM coherent optics. Submarine cables uas txuas mus rau sab av loj kuj yog fiber ntau - feem ntau nrog optical amplifiers (EDFAs) txhua 50-100 km.
Hyperscale thiab Enterprise Data Centers
Hauv cov ntaub ntawv niaj hnub no, nplooj ntawv - mus rau - cov kab txuas txuas feem ntau yog MPO-raws li kev sib txuas optics dhau OM4 lossis OM5, thiab cov neeg rau zaub mov-rau- nplooj txuas feem ntau yog LC duplex ntawm OM3/OM4.MPO thiab MTP pob tw thiab tawg cablesyog dab tsi ua rau 40G, 100G, thiab 400G chaw nres nkoj ntom ntom ntawm qhov ntsuas.
FTTH thiab Broadband Access
Fiber rau lub tsev txuas ib zaug xwb - hom fiber ntau los ntawm OLT, los ntawm passive optical splitter, mus rau ONT ntawm txhua tus neeg siv khoom. Ib qho GPON lossis XGS-PON architecture ua haujlwm rau 32 lossis 64 lub tsev los ntawm ib lub PON chaw nres nkoj thiab txhawb nqa gigabit-chav kawm downlink ceev. Cov ncauj lus kom ntxaws tsim ntawm ibFTTH nkag networktsim nyog nws tus kheej qhia.
Industrial, Kev Kho Mob, thiab Kev Ntsuas
Hauv cov chaw tsim khoom, fiber ntau hloov tooj liab ntawm txhua qhov txuas uas hla siab - cov khoom siv hluav taws xob lossis hloov pauv tau - zaus tsav - tooj liab khaws cov suab nrov hluav taws xob ntau dhau los ua kom ntseeg tau. Kev kho mob endoscopes siv fiber ntau los xa cov ntaub ntawv teeb pom kev thiab duab. Distributed fiber sensors ntes kev vibration, kub, thiab strain raws li pipelines, perimeters, thiab cov qauv.
Yuav Ua Li Cas Xaiv Txoj Cai Fiber Optic Cable
Kev xaiv cable yuav tsum pib nrog cov kev xav tau ntawm lub network, tsis yog nrog cov khoom lag luam. Taug kev ntawm tsib lo lus nug no, nyob rau hauv kev txiav txim.
1. Dab tsi yog qhov txuas nrug thiab yuav tsum tau ceev?
Daim ntawv qhia kev deb tawm tsam IEEE 802.3 PMD uas phim koj qhov nrawm. 250 m 10G txuas tuaj yeem khiav OM3; 350 m 10G txuas xav tau OM4 lossis ib hom - hom; ib yam dab tsi dhau los 550 m ntawm 10G yog ib qho - hom thaj chaw. Rau 100G/400G, multimode ncav cuag nrawm nrawm - ib leeg- hom yog qhov kev nyab xeeb tsis dhau ib lub tsev.
2. Dab tsi Transceiver yuav teeb lub Fiber?
Lub cable thiab optical module yuav tsum sib phim. Tshawb xyuas:
- Fiber hom: ib leeg-hom vs multimode
- Wavelength: 850nm vs 1310nm vs 1550nm, lossis CWDM / DWDM daim phiaj
- Connector: LC duplex, SC, los yog MPO / MTP
- ncav cuag specification (SR, LR, ER, ZR)
- Duplex vs parallel (MPO) signaling
Pairing qhov tsis ncaj ncees lawm transceiver thiab fiber ntau yog ib qho ua rau "qhov txuas yog tsaus" daim pib. A 10GBASE-LR ib leeg- hom transceiver ntawm lub multimode thaj qaum tej zaum yuav flap intermittently los yog tsis txuas txhua.
3. Lub Connector twg haum rau koj cov khoom siv?
Plaub hom connector koj yuav pom ntawm cov khoom siv tiag tiag hnub no:
- LC- lub neej ntawd nyob rau niaj hnub SFP/SFP+/SFP28 transceivers thiab feem ntau cov ntaub ntawv chaw duplex txuas
- SC- feem ntau hauv xov tooj, FTTH ONTs, thiab qee cov khoom lag luam qub qub
- MPO/MTP- ntau- fiber ntau connectors siv rau thaum uas tig mus 40G/100G/400G optics thiab siab -cov khoom ceev
- FC thiab ST- pom nyob rau hauv cov laus networks, cov cuab yeej xeem, thiab qee qhov kev xa tawm
Cov ncauj lus kom ntxaws ntxiv ntawm txhua hom connector - suav nrog cov qauv polish thiab qhov twg APC vs UPC tseem ceeb - yog nyob rau hauv pebfiber optic connector hom qhia.
4. Qhov Kev Txhim Kho Ib puag ncig yog dab tsi?
Lub tsho thiab kev tsim kho tseem ceeb npaum li lub iav:
- Sab hauv riser lossis plenum- nplaim taws- cov tsho ntsuas qhov xav tau los ntawm cov lej (CMR, CMP)
- Sab nraum zoov huab cua- UV- tsho tiv taus, feem ntau nrog ADSS lossis daim duab-8 kev tsim kho
- Direct faus los yog duct- armored los yog gel- puv xoob- raj cable
- Kev lag luam- armored cable rated rau cov tshuaj lom neeg thiab cov neeg kho tshuab raug
5. Yuav kuaj qhov txuas li cas?
Npaj kev sim ua ntej koj rub cable. Qhov tsawg kawg nkaus, txhua qhov kev txiav tawm tau txais kev soj ntsuam txuas nrog lub fiberscope thiab qhov ntsuas qhov poob nrog lub teeb ci thiab lub ntsuas hluav taws xob. Rau qhov txuas ntev dua lossis tseem ceeb, ntxiv ib qho OTDR taug qab los nrhiav qhov siab - cov xwm txheej poob.Fluke Networks luam tawm cov ntaub ntawv siv tau zoontawm txoj kev xeem rau ob qho kev pov thawj thiab kev daws teeb meem.
FAQ
Q: Dab tsi yog fiber optics hauv cov lus yooj yim?
A: Fiber optics yog ib txoj hauv kev xa cov ntaub ntawv siv pulses ntawm lub teeb los ntawm nyias iav fibers. Nws yog thev naus laus zis tom qab siab - internet ceev, niaj hnub cov ntaub ntawv chaw, thiab feem ntau ntev - kev sib txuas lus nyob deb.
Q: Puas yog fiber ntau optic cable sai dua tooj liab?
A: Rau qhov kev ncua deb thiab cov ntaub ntawv siab, yog - loj heev. Tib - hom fiber ntau ib txwm nqa 100G lossis 400G tshaj kaum mais, thaum tooj liab Ethernet tawm ntawm 40G tshaj 30 m (Cat 8) lossis 10G tshaj 100 m (Cat 6A).
Q: Qhov siab tshaj plaws ntawm ib qho - hom fiber ntau yog dab tsi?
A: Nws nyob ntawm tus transceiver. Standard 10GBASE-LR khiav 10 km, 10GBASE-ER khiav 40 km, 10GBASE-ZR khiav 80 km, thiab coherent DWDM systems txuas mus rau ntau pua lossis txhiab kilometers nrog amplification.
Q: Puas yog OS2 zoo dua OS1?
A: Rau feem ntau cov kev teeb tsa tshiab, yog. OS2 muaj qis attenuation thiab siv xoob-tube tsim tsim nyog rau ob qho tib si sab hauv tsev thiab sab nraum zoov siv, thaum OS1 yog qhov tseem ceeb hauv tsev nruj- buffered specification nrog ntau dua poob ib kilometer.
Q: Puas yog OM4 zoo dua OM3?
A: OM4 txhawb nqa ntev dua ntawm tib qhov ceev - piv txwv li, 400 m ntawm 10G piv rau 300 m rau OM3, thiab 150 m piv rau 100 m ntawm 40G / 100G. Yog tias qhov txuas txuas tau yooj yim hauv OM3 qhov ncav cuag, OM3 feem ntau yog tus nqi ntau dua -zoo.
Q: Cov fiber ntau optic cable puas tuaj yeem siv sab nraum zoov?
A: Yog, nrog kev tsim kho kom raug. Sab nraum zoov fiber ntau cables siv UV-cov tsho tiv thaiv, dej- thaiv cov ntsiab lus, thiab feem ntau armored los yog xoob- raj tsim. Sab hauv tsev - ntsuas cable yuav tsum tsis txhob siv sab nraum zoov thiab rov ua dua.
Q: Dab tsi connectors siv rau fiber ntau optic cable?
A: Feem ntau yog LC (hnub no cov ntaub ntawv chaw thiab SFP optics), SC (telecom thiab FTTH), MPO / MTP (parallel optics ntawm 40G thiab siab dua), thiab FC / ST hauv cov laus lossis cov tshuab ua haujlwm.
Q: Puas yog fiber ntau xav tau lub transceiver lossis modem?
A: Nws xav tau lub transceiver - feem ntau SFP, SFP +, QSFP +, QSFP28, lossis QSFP-DD - uas hloov pauv ntawm hluav taws xob thiab kho qhov muag teeb liab ntawm txhua qhov kawg ntawm qhov txuas. FTTH cov kev pabcuam feem ntau xaus ntawm ONT, uas yog qhov sib npaug ntawm qhov chaw nyob ntawm lub transceiver.
Q: Puas yog fiber ntau optic cable nqa hluav taws xob lossis PoE?
A: Tsis yog. Txheem fiber ntau kis tau tsuas yog lub teeb. Txhawm rau siv hluav taws xob rau cov chaw taws teeb, koj tuaj yeem nruab tooj liab nrog rau cov fiber ntau lossis siv hybrid fiber ntau / tooj liab cable.
Q: Puas yog fiber ntau optic cable tsis yooj yim?
A: Cov iav strands yog nkig, tab sis ib tug tiav cable yog robust thaum ntsia kom raug. Feem ntau qhov kev ua tsis tiav los ntawm kev ua txhaum lub vojvoog khoov, rub lub zog thaum lub sijhawm teeb tsa, lossis kev sib txuas tsis zoo - tsis yog los ntawm iav nws tus kheej ua tsis tiav.
Q: Thaum twg kuv yuav tsum xaiv fiber ntau tsis yog tooj liab?
A: Xaiv cov fiber ntau thaum qhov txuas ntev dua 100 m, thaum nws hla hluav taws xob tsis zoo ib puag ncig, thaum nws xav tau kev txhawb nqa 25G lossis nrawm dua, lossis thaum nws nyob hauv txoj hauv kev uas yuav kim dua tom qab. Copper tseem yeej rau qhov txuas luv luv, PoE-powered endpoints, thiab chaw ua haujlwm me.
Xaus
Fiber optics yog lub hauv paus ntawm qhov tseem ceeb ntawm txhua qhov niaj hnub siab -kev ua tau zoo network - thiab cable qeb, hom connector, thiab kev xaiv transceiver txhua tus muaj qhov cuam tshuam tiag tiag rau seb qhov txuas puas ua tau raws li qhov tshwj xeeb.
- SivOS2 single-moderau txhua yam uas tawm hauv lub tsev, ntxiv rau FTTH thiab ntev -haul.
- SivOM4 (los yog OM5 rau SWDM)multimode rau hauv - tsev cov ntaub ntawv chaw txuas hauv qab ob peb puas meters.
- SivOM 3thaum nyiaj txiag teeb meem thiab txuas ntev yog yooj yim nyob rau hauv nws ncav cuag.
- Sivtooj liabrau kev nkag mus luv luv, cov khoom siv PoE, thiab cov chaw ua haujlwm yooj yim cabling.
Ua ntej yuav khoom, kaw qhov deb, ceev, transceiver, connector, ib puag ncig, thiab kev npaj kuaj. Ua qhov haujlwm ua ntej - es tsis txhob cia txoj kev xaiv cable tsav tus qauv tsim - yog ib qho kev kwv yees loj tshaj plaws ntawm seb lub teeb tsa fiber ntau puas ua tiav nws lub neej tag nrho.
