Ib qho SC connector yog square-bodied, thawb-rub fiber optic connector ua nyob ib ncig ntawm 2.5 hli ceramic (zirconia) ferrule. Nws yogtsim los ntawm NTT (Nippon Telegraph thiab Xov Tooj) nyob rau nruab nrab-1980sRaws li kev txhim kho dhau los ua ntej threaded connectors zoo li FC, thiab nws sai sai tau los ua ib qho ntawm feem ntau siv yooj yim fiber connectors nyob rau hauv lub ntiaj teb no. SC yog tus qauv raws liTIA-604-3 (FOCIS-3)thiab ua raws li IEC 61754-4.
Niaj hnub no, SC tseem yog qhov kev xaiv zoo tshaj plaws hauv kev sib tham hauv xov tooj, FTTH handoffs, media converters, thiab legacy patch panels - nyob txhua qhov chaw koj xav tau kom phim cov chaw nres nkoj SC uas twb muaj lawm lossis ua qhov tseem ceeb ntawm kev tuav yooj yim. Thaum qhov chaw nres nkoj ceev yog qhov tseem ceeb thiab cov cuab yeej siv SFP-style interfaces, qhov me duaLC connectorfeem ntau yog qhov zoo dua. Cov lus qhia no suav nrog SC connector qauv, hom, tiag tiag- ntiaj teb daim ntawv thov, kev sib piv nrog LC, thiab ib kauj ruam -los ntawm - kauj ruam xaiv.
SC Connector Structure thiab nws ua haujlwm li cas
SC connector mates los ntawm ib tug snap-hauv, thawb- rub mechanism: koj thawb lub ntsaws rau hauv lub adapter kom txog thaum nws nyem, thiab rub nws ncaj nraim rov qab mus rau disconnect. Tsis muaj kev sib tw lossis kev sib txuas, uas ua rau ib qho - muab kev ua haujlwm ncaj nraim - qhov zoo dua qubFC connectorthiabST connector, ob qho tib si uas xav tau kev sib hloov coupling.
Nyob rau hauv lub plug, lub caij nplooj ntoos hlav -loaded 2.5 hli zirconia ferrule tuav thiab aligns cov liab qab fiber. Thaum ob lub SC ntsaws cov phooj ywg hauv qhov sib cais- lub tes tsho adapter, cov ferrules nias ua ke nyob rau hauv lub caij nplooj ntoos hlav quab yuam los ua ib qho kev sib cuag ntawm lub cev (PC) cuam tshuam, txo qis qhov sib txawv ntawm huab cua thiab txo ob qho tib si nkag thiab rov qab xav txog. Zoo-ua rau SC connectors feem ntau ua tiav qhov poob qis dua 0.25 dB ib khub niam txiv. Yog xav paub ntxiv txog yuav ua li cas cov kev ntsuas kho qhov muag no cuam tshuam rau kev sib txuas, saib peb phau ntawv qhiainsertion poob vs. rov poob.
SC connectors muaj nyob rau hauv simplex (ib zaug -fiber) thiab duplex (ob-fiber) configurations. Hauv kev sib dhos duplex, ob lub plugs simplex tau koom ua ke los ntawm ib qho clip kom lawv tuaj yeem muab tso thiab tshem tawm raws li ib chav tsev - pab tau rau kev sib txuas bidirectional qhov twg yuav tsum tau sib cais thiab tau txais fibers.
Hom SC Connectors
Thaum muas SC connector los yogfiber ntau thaj qaum, koj yuav ntsib peb qhov kev faib loj loj: hom polish, hom fiber ntau, thiab teeb tsa. Tau txais ib qho ntawm lawv tsis raug tuaj yeem ua rau lub teeb liab degradation lossis lub cev puas tsuaj rau qhov kawg.
SC/UPC vs. SC/APC: Polish Hom
Qhov no yog ib qho kev sib txawv tseem ceeb tshaj plaws. SC/UPC (Ultra Physical Contact) muaj qhov nkhaus me ntsis, tiaj tus - polished endface thiab feem ntau pom los ntawm lub cev xiav txuas rau singlemode lossis beige / aqua rau ntau hom. SC/APC (Angled Physical Contact) muaj 8-degree angled endface thiab siv lub cev txuas ntsuab. Lub kaum sab xis tig rov qab pom lub teeb nyob deb ntawm cov tub ntxhais fiber ntau, ua kom rov qab poob ntau dua - uas yog vim li cas APC nyiam nyob rau hauv cov kev xav-sensitive systems xws liFTTH/GPON tes hauj lwm, CATV RF overlay, thiab analog video txuas. Yog xav paub ntxiv sib piv, saib pebSC / APC fiber ntau optic cable qhia.
APC thiab UPC yuav tsum tsis txhob sib koom ua ke. CovFiber Optic Association (FOA)ceeb toom tias kev sib txuas ntawm lub kaum sab xis mus rau qhov kawg ntawm lub tiaj tiaj ua rau muaj qhov sib txawv ntawm huab cua uas ua rau qhov poob qis, nce rov qab xav txog, thiab tuaj yeem khawb ob qho tib si ferrules mus tas li. Ib txwm phim hom polish raws nraim rau qhov chaw nres nkoj specification - xim coding pab, tab sis kev lees paub cov ntaub ntawv cov cuab yeej yog qhov kev coj ua zoo tshaj plaws.
Singlemode vs. Multimode
SC connectors ua haujlwm nrog ob qho tib sisinglemode fiber ntauthiabmultimode fiber ntau. Singlemode SC connectors (feem ntau yog lub tsho daj, OS2) yog cov qauv hauv kev sib tham hauv xov tooj, cov nroj tsuag sab nraud, thiab qhov ntev - kev sib txuas. Multimode SC connectors (txiv kab ntxwv OM1 / OM2, aqua OM3 / OM4, los yog txiv qaub ntsuab OM5) tshwm sim hauv kev lag luam LANs thiab cov ntaub ntawv chaw luv luv- ncav cuag - txawm tias nyob rau hauv multimode tshiab tsim, LC tau siv ntau vim qhov zoo ntawm qhov ntom ntom.
Simplex vs Duplex
Ib qho yooj yim SC connector nqa ib txoj kev fiber ntau. Nws yog ib txwm muaj nyob rau hauv PON handoffs thiab ib leeg -fiber bidirectional (BiDi) txuas qhov twg wavelength - faib multiplexing tuav ob qho tib si cov lus qhia ntawm ib txoj hlua. Ib lub rooj sib dhos SC sib dhos ua ke ob lub fibers rau cov tsoos bidirectional Ethernet-txoj kev sib txuas uas yuav tsum tau sib cais thiab tau txais fibers.
Patch Cord vs. Pigtail vs. Field-Installable
Tshaj li qhov tshwj xeeb kho qhov muag, SC connectors tuaj nyob rau hauv cov khoom sib txawv. Apatch kabyog lub Hoobkas- txiav cable nrog cov khoom txuas ntawm ob qho kawg, npaj rau ntsaws-thiab- ua si siv. Apigtailmuaj ib tug connector ntawm ib kawg thiab ib tug liab qab fiber tail ntawm lwm yam, tsim rau fusion splicing rau lub cev cables. Ateb -installable (ceev) connectorsiv lub pre- polished ferrule nrog ib tug neeg kho tshuab splice nyob rau hauv, tso cai rau cov kws kho mob txiav fiber nyob rau hauv - qhov chaw yam tsis muaj epoxy los yog polishing cov cuab yeej - ib tug tswv yim kev xaiv rau FTTH thiab lub tsev - nkag mus rau qhov twg ceev tseem ceeb.
SC/APC vs. SC/UPC Sib piv
| Parameter | SC/UPC | SC/APC |
|---|---|---|
| Endface kaum | 0℃( tiaj tus, nkhaus polish) | 8℃kaum polished |
| Tej yam rov poob | Ntau dua lossis sib npaug li 50 dB | Ntau dua lossis sib npaug li 60 dB |
| Xim code | Xiav (SM) / Beige lossis Aqua (MM) | Ntsuab |
| Zoo tshaj rau | Cov ntaub ntawv dav dav, LAN, digital txuas | FTTH/GPON, CATV, analog, xav txog-sensitive systems |
| Hla- sib tov | Tsis tso cai - APC thiab UPC endfaces yog lub cev tsis sib xws | |
Qhov twg SC Connectors siv niaj hnub no
Txawm hais tias kev lag luam hloov mus rau LC nyob rau hauv siab - ib puag ncig ceev, SC connectors tseem ruaj khov nyob rau hauv ntau qhov kev xa tawm. Kev nkag siab yog vim li cas txhua qhov xwm txheej nyiam SC pab koj kom tsis txhob dhau - qhia thiab hauv qab - qhia koj qhov kev xaiv txuas.
Telecom demarcation thiab sab nraud cog.Ntawm qhov chaw demarcation qhov twg tus neeg muab kev pabcuam fiber ntau nkag mus rau hauv lub tsev, SC / APC singlemode connectors yog cov feem ntau cuam tshuam. Cov tswv lag luam hauv xov tooj tau txais SC thaum ntxov, thiab tiam neeg ntawm cov khoom siv kho qhov muag (ONTs), fiber ntau cov thawv, thiabPLC splitterstau tsim nyob ib ncig ntawm SC form factor. Hloov cov no nrog LC yuav xav tau hloov pauv adapters, vaj huam sib luag, thiab qee zaum cov khoom siv davhlau ya nyob twg nws tus kheej - tus nqi uas tsis tshua muaj txiaj ntsig rau cov nroj tsuag uas twb muaj lawm.
FTTH thiab PON networks.Hauv GPON thiab XGS-PON kev xa tawm, SC/APC yog lub neej ntawd txuas ntawm tus neeg siv khoom kawg hauv ntau thaj tsam. Lub kaum sab xis muab qhov rov qab poob siab uas cov cuab yeej siv kho qhov muag pom tau xav kom ua haujlwm kom raug tshaj cov ntoo sib faib. Rau kev taw qhia txog kev tsim cov tes hauj lwm no, xa mus rau pebFTTH cov lus qhia kev npaj network.
Media converters thiab multiplexers.Ntau tus tooj liab-rau- fiber ntau media converters, tshwj xeeb tshaj yog cov tsim rau kev lag luam ntug thiab kev lag luam
daim ntawv thov, nkoj nrog SC chaw nres nkoj. Tib yam muaj tseeb rau qee yam CWDM / DWDM multiplexer modules. Yog tias cov khoom siv chaw nres nkoj yog SC, thaj qaum yuav tsum yog SC - tsis muaj qhov zoo dua los hloov mus rau LC ntawm cov khoom siv ntawd.
Legacy enterprise thaj panels.Chaw ua hauj lwm thiab tsev kawm ntawv cabled nyob rau hauv 1990s thiab thaum ntxov 2000s feem ntau muajfiber ntau optic adapterpanels populated nkaus nrog SC adapters. Thaum tuav lossis txuas ntxiv cov nroj tsuag no, nyob nrog SC feem ntau yog tus nqi tshaj plaws -txoj kev ua tau zoo tshwj tsis yog tias lub vaj huam sib luag hloov tag nrho twb tau npaj lawm.
Cov khoom siv ntsuas thiab ntsuas.Ntau lub ntsuas hluav taws xob kho qhov muag, lub teeb ci, thiab OTDRs siv SC lossis universal 2.5 mm adapters ua lawv qhov chaw nres nkoj. Qhov no txhais tau tias SC xeem jumpers tseem yog cov khoom siv hauv cov khoom siv fiber ntau.
SC vs. LC Connector Sib piv
| Feature | SC Connector | LC Connector |
|---|---|---|
| Ferrule txoj kab uas hla | 2.5 hli | 1.25 hli |
| Latching style | Push- rub snap | Latch tab (RJ-style) |
| kwv tij loj | Loj dua - yooj yim tuav hauv thaj teb | Txog ib nrab ntawm cov hneev taw ntawm SC |
| Chaw nres nkoj ceev | Tsawg dua - cov chaw nres nkoj tsawg dua rau ib lub vaj huam sib luag U | Siab dua - kwv yees li 2 × SC qhov ceev |
| Dominant hauv | Telecom demarc, FTTH, legacy LAN, media converters | Cov chaw zov me nyuam, SFP/SFP+ transceivers, siab - hloov ceev |
| Txuj | TIA-604-3 (FOCIS-3) | TIA-604-10 (FOCIS-10) |
Qhov kev sib piv tsis yog hais txog qhov twg connector yog "zoo dua" nyob rau hauv lub abstract. Nws yog hais txog qhov twg phim koj cov cuab yeej siv interface, qhov xav tau ceev, thiab nruab puag. Yog xav paub ntxiv saib ntawm LC specifications, saib pebLC fiber ntau connector qhia.
Yuav Ua Li Cas Xaiv Txoj Cai SC Connector: Ib kauj ruam -los ntawm - Cov kauj ruam Checklist
Ua ntej kev txiav txim, paub meej tias tsib qhov kev txwv no. Tsis nco ib qho ntawm lawv yog qhov feem ntau ntawm kev yuav khoom yuam kev.
Kauj ruam 1 - Qhia qhov chaw nres nkoj connector hom.Xyuas cov khoom siv lossis vaj huam sib luag. Yog tias qhov chaw nres nkoj lees txais SC, siv SC. Yog tias nws lees txais LC, tsis txhob xaj SC vam tias yuav hloov kho nws - hybrid adapters muaj nyob, tab sis lawv ntxiv cov ntsiab lus poob thiab tsis ua haujlwm.
Kauj ruam 2 - Paub meej hom polish.Puas yog qhov chaw nres nkoj sau APC lossis UPC? Saib cov xim adapter: ntsuab yuav luag ib txwm txhais tau tias APC; xiav txhais tau tias UPC. Yog tias cov ntaub ntawv khoom siv qhia txog APC, koj yuav tsum siv SC/APC. Kev sib xyaw polish hom yog qhov ua yuam kev tshaj plaws uas koj tuaj yeem ua nrog fiber ntau txuas.
Kauj ruam 3 - Sib phim hom fiber ntau.Cov khoom siv Singlemode xav tau singlemode SC connectors thiab singlemode fiber ntau. Cov khoom siv Multimode xav tau cov khoom sib txuas SC multimode. Hla - txuas singlemode connectors rau multimode fiber ntau (los yog vice versa) yuav ua rau poob loj heev los yog ib tug tsis yog -functional link.
Kauj ruam 4 - Xaiv simplex los yog duplex.Yog tias qhov txuas siv ib qho fiber ntau (feem ntau hauv PON lossis BiDi daim ntawv thov), siv simplex. Yog tias qhov txuas xav tau kev sib kis thiab tau txais fiber ntau, siv duplex.
Kauj ruam 5 - Xav txog qhov ceev thiab kev loj hlob yav tom ntej.Yog tias koj tab tom txuas cov khib nyiab tshiab lossis vaj huam sib luag nrog ntau lub chaw nres nkoj, ntsuas seb SC puas tseem ua rau kev txiav txim siab lossis txawm tias tsiv mus rau LC yuav txuag chaw thiab ua kom yooj yim rau yav tom ntej nthuav dav. Rau ib qho kev hloov pauv xov xwm lossis ib qho demarc handoff, lo lus nug no tsis tshua siv.
Ceev-Reference: Scenario-rau-Cov Lus Qhia Txuas Txuas
| Kev xa tawm scenario | Hom SC xaiv |
|---|---|
| FTTH / GPON cov neeg siv khoom poob | SC/APC, simplex, singlemode (OS2) |
| Telecom demarc lossis sab nraud cog kev cog lus | SC/APC, simplex lossis duplex, singlemode |
| Legacy enterprise thaj vaj huam sib luag tu | SC / UPC, duplex, singlemode lossis multimode (ua si uas twb muaj lawm) |
| Copper-rau-fiber media converter | SC/UPC los yog SC/APC (match converter chaw nres nkoj), simplex los yog duplex |
| Tshiab siab -Density Data Center khib | Xav txog LC xwb - SC feem ntau tsis yog qhov zoo tshaj plaws ntawm no |
Feem ntau yuam kev kom zam
Mating APC nrog UPC.Qhov no yog ib qho kev puas tsuaj loj tshaj plaws. Vim hais tias APC ferrule yog angled ntawm 8 degrees thiab UPC ferrule yog tiaj tus, yuam lawv ua ke tsim ib qho kev sib cuag tsis yog tag nrho - ntsej muag. Qhov tshwm sim yog qhov poob siab siab, tsis zoo rov qab poob, thiab muaj peev xwm khawb mus tas li ntawm ob lub ntsej muag kawg.
Hla kev tshuaj xyuas thiab ntxuav ua ntej mating.Raws liFluke Networks, kawg-kev sib kis ntawm lub ntsej muag yog qhov ua rau ntawm fiber ntau network tsis ua haujlwm. Cov plua plav microscopic, roj, thiab cov khib nyiab ua rau ntau qhov kev nkag mus thiab rov qab xav txog. Qhov phem tshaj, mating ib tug qias neeg connector tuaj yeem tsoo cov khoom rau hauv iav, ua rau muaj kev puas tsuaj mus tas li. Tus qauv kev coj ua yog los tshuaj xyuas txhua qhov kawg ntawm lub ntsej muag uas muaj fiber ntau thiab ntxuav nrog lint - cov ntaub so tsis pub dawb lossis ib qho - nyem lub tshuab ntxhua khaub ncaws ua ntej txhua qhov kev sib txuas - suav nrog cov khoom lag luam - lub Hoobkas tshiab - txiav cov hlua khi.
Tsis meej pem thiab duplex.Ib qho yooj yim patch qaum tsis tuaj yeem hloov qhov txuas duplex uas yuav tsum tau sib cais thiab tau txais txoj hauv kev. Ib txwm txheeb xyuas qhov txuas topology ua ntej xaj.
Tsis quav ntsej hom fiber ntau mismatch.Txuas lub singlemode SC connector rau hauv multimode fiber ntau (los yog qhov thim rov qab) yuav ua tsis ncaj los yog ua rau poob tsis txaus. Jacket xim yog cov lus qhia muaj txiaj ntsig - daj rau singlemode OS2, txiv kab ntxwv rau OM1/OM2, aqua rau OM3/OM4 - tab sis ib txwm txheeb xyuas cov kab thiab cov khoom siv tshwj xeeb.
FAQ
Puas yog SC connector tsis siv lawm?
Tsis yog. LC tau dhau SC nyob rau hauv siab -cov khoom siv hluav taws xob ceev thiab cov ntaub ntawv chaw ib puag ncig, tab sis SC tseem siv dav hauv kev sib tham hauv xov tooj, FTTH, CATV, media converters, thiab ntsia fiber ntau cov nroj tsuag thoob ntiaj teb. Lub connector nws tus kheej txuas ntxiv tsim, tsim qauv, thiab txhawb nqa los ntawm txhua tus neeg muag khoom loj.
Puas yog SC zoo dua LC?
Tsis yog universally zoo dua. SC yog qhov loj dua, yooj yim rau kev khiav lag luam, thiab nkag mus rau hauv kev sib txuas lus thiab FTTH infrastructure. LC yog hais txog ib nrab ntawm qhov loj me, ua kom muaj qhov chaw nres nkoj siab dua, thiab yog tus qauv sib txuas rau SFP thiab SFP + transceivers. Txoj kev xaiv yog nyob ntawm cov khoom siv chaw nres nkoj thiab cov kev cai tsim network. Pebfiber optic connector hom qhianpog cov kev xaiv txuas ntxiv.
Kuv puas tuaj yeem txuas SC / APC rau SC / UPC?
Koj yuav tsum tsis txhob. APC thiab UPC endfaces muaj qhov sib txawv geometry thiab lub cev tsis sib xws. Kev quab yuam kev sib txuas ntawm lawv yuav ua rau cov teeb liab tsis zoo thiab muaj kev pheej hmoo puas tsuaj mus tas li rau cov ferrules.
Puas yog SC connectors siv rau singlemode lossis multimode?
Ob leeg. SC connectors yog tsim rau singlemode (OS2) thiab multimode (OM1 txog OM5) daim ntaub ntawv. Qhov tseeb version yuav tsum phim hom fiber ntau thiab cov khoom siv interface.
"SC" sawv cev rau dab tsi?
Cov ntawv luv yog feem ntau nthuav dav li "subscriber connector" lossis "standard connector." Qee cov ntaub ntawv kev lag luam kuj txhais nws li "square connector," uas qhia txog nws cov vaj tsev nyob. Lub connector tau tsim los ntawm NTT hauv xyoo 1980s.
Kuv tuaj yeem nrhiav SC connector khoom nyob qhov twg?
Koj tuaj yeem xaujSC connectorkev xaiv, suav nrog SC / UPC thiab SC / APC hauv ntau qhov kev teeb tsa, ntawm peb nplooj ntawv khoom. Rau ua tiav thaj qaum sib dhos, mus saib pebfiber optic thaj qaumntu.
Cov ntsiab lus
SC connector yog ib qho pov thawj, cov qauv- txhawb nqa fiber ntau optic interface nrog lub laub- rub tsim, 2.5 hli zirconia ferrule, thiab ntau xyoo ntawm kev xa tawm thoob plaws hauv xov tooj, FTTH, thiab kev lag luam network. Nws tseem yog qhov kev xaiv zoo thaum koj sib piv SC infrastructure uas twb muaj lawm, ua haujlwm ntawm qhov chaw sib tham hauv xov tooj, lossis xa mus rau hauv cov xwm txheej uas qhov kev daws teeb meem yooj yim dua li qhov chaw nres nkoj ceev. Rau qhov tshiab siab - qhov ntom ntom tsim nyob rau hauv SFP-raws li cov keyboards thiab transceivers, LC feem ntau yog txoj kev ntse dua rau pem hauv ntej.
Ua ntej yuav ib qho SC patch qaum, pigtail, los yog connector, paub meej tias plaub yam tsis muaj: hom chaw nres nkoj (SC vs. LC vs.), hom polish (APC vs. UPC), hom fiber ntau (singlemode vs. multimode), thiab txuas kev teeb tsa (simplex vs. duplex). Yog tias tag nrho plaub qhov sib xws koj cov khoom siv thiab kev tsim network, koj nyob ntawm txoj hauv kev. Yog xav nyeem ntxiv txog fiber ntau infrastructure, tshawb xyuas pebfiber optic cable installation daim ntawv qhialos yog xauj tag nrho ntawmfiber ntau optic connectorsmuaj los ntawm DIMI Fiber.
