SFP vs SFP + vs SFP28 vs QSFP

 

SFP Module yog dab tsi?

SFP (Small Form-factor Pluggable) yog compact, kub-swappable optical transceiver siv los txuas cov khoom siv network (switches, routers) rau fiber ntau lossis tooj liab. Tus qauv tsim los ntawm MSA (Multi-Source Agreement) consortium nyob rau hauv thaum ntxov 2000s, tam sim no nws yog lub hauv paus ntawm cov ntaub ntawv chaw zov me nyuam thiab kev lag luam network thoob ntiaj teb.

Ntau tus neeg tuaj tshiab tsis meej pem SFP nrog SFP+. Lawv zoo ib yam, tab sis yog tias koj ntsaws 1G SFP rau hauv10G SFP +chaw nres nkoj,lub teeb txuas los ntawm tab sis koj yuav tsis ntaus tag nrho ceev- qhov no yog # 1 ua rau "vim li cas kuv tsuas tau txais 1G bandwidth" daim pib.

 

Vim li cas SFP modules tseem ceeb:

Kub-swappable: Hloov cov modules yam tsis muaj hluav taws xob poob- tsawg dua downtime

Modular: Tib qhov chaw nres nkoj tuaj yeem txais cov modules rau qhov sib txawv thiab hom xov xwm

Tus nqi - hloov pauv: Yuav yam koj xav tau tam sim no, hloov kho tom qab

 

SFPvsSFP+vsSFP28vsQSFP

Qhov no yog qhov feem ntau - nug cov lus nug. Lus teb luv luv:txheeb xyuas koj hom chaw nres nkoj thiab qhov yuav tsum tau muaj bandwidth.

Form Factor	Ceev	Hom Siv Case	Kev Tshawb Fawb
SFP	1gbps ua	Enterprise nkag txheej, kev ruaj ntseg koob yees duab	Yog tias nws ua haujlwm, tsis txhob xav ntau dhau
SFP +	10 Gbps	Server interconnects, aggregation txheej	Lub 2024 "sweet spot"-zoo tshaj tus nqi-rau-kev ua tau zoo
SFP28	25 Gbps	High-cov ntaub ntawv ceev ceev	Tshwj tsis yog tias koj tab tom tsim hyperscale, tej zaum koj yuav tsis xav tau qhov no
QSFP +	40 Gbps	Core switching, qaum txheej	Ua ntu zus los ntawm 100G-tsis txhob yuav tshiab
QSFP28	100 Gbps	Data Center Interconnect (DCI)	Mus- mus ntev -haul; FB-LINK qhov tshwj xeeb

Tsis txhob poob siab, Qee tus neeg koom ua ke yuav thawb koj mus rau "yav tom ntej- pov thawj nrog25G SFP28"tab sis yog tias koj qhov hloov pauv muaj keeb kwm 10G chaw nres nkoj,nws yuav tsis txawm paub lub module. Khiav qhia interface thiab txheeb xyuas koj hom chaw nres nkoj ua ntej xaj.

 

 

SFP Module Hom Piav Qhia

Los ntawm Transmission Medium

1. Fiber ntau SFP

Hom	Lub wavelength	Hom kab mob	Hom Fiber	Common Pitfall
SX (Short Range)	850nm ua	550m	Multimode OM3 / OM4	Pob ntawv poob pib creeping yav dhau los 300m
LX (Long Range)	1310nm ua	10km ua	Tib -mode OS2	Kev siv nws ntawm qhov luv luv tuaj yeem ua rau tus neeg txais khoom
EX (Extended Range)	1310nm ua	40km ua	Tib -mode OS2	Xav tau lub attenuator los yog lub teeb liab kub heev
ZX (ntau ntev heev)	1 550nm	80km ua	Tib -mode OS2	Tus nqi 5-10x ntau dua LX

Khiav ib qho LX module hla luv luv (xws li 15 ko taw hauv lub txee)xav tau ib tug attenuator. Kuv tau pom ntau tus neeg hlawv tawm ntawm lawv qhov chaw txais thiab xav tias qhov module yog DOA.

 

FB-LINK Ntev-Haul Advantage:

FB-LINK tackles ntev-kev sib tw kis mus rau qhov deb sivcoherent opticsthiabDWDM technologykom kov yeej fiber ntau poob thiab dispersion:

Ultra-ntev- kev txhawb nqa nqa:100G/200G/400G CFP2/QSFP-DD coherent modules ua ke nrog OTN platforms (SOA/EDFA optical amplifiers) xa75 mais mus rau 1,200+ maiskis tau tus mob-tsis rov ua dua lossis ntau- ncua.

Kev sib xyaw ua ke siab:QSFP28 ZR4 modules nrog kev sib koom ua ke SOA + PIN txhawb nqa 50- mais taw tes- rau-taw tes yam tsis muaj kev nthuav dav sab nraud.

Kev siv pov thawj:Kev sib txuas hauv qab, DCI, thiab cov phiaj xwm metro nthuav dav thoob plaws Asia thiab dhau mus.

 

2. Tooj liab SFP (SFP-T)

Siv RJ45 interface, maxes tawm ntawm 330 ko taw. Zoo rau:

Nkag mus rau txheej rau cov khoom siv kawg

Cov chaw qub qub uas tsis muaj fiber ntau khiav

Cov peev nyiaj- txwv tsis pub cov network me me

Kev Tshawb Fawb:Tooj SFPs khiavntaukub dua fiber ntau SFPs. Yog tias koj qhov kev hloov pauv tsis zoo, sau nws nrog tooj liab SFPs tuaj yeem ua rau thermal throttling thoob plaws lub chassis.

 

 

Los ntawm kis hom

BiDi SFP (Ib leeg -Fiber Bidirectional)

Ua tiav ob -txoj kev kis tau tus mob hla ib txoj hlua fiber ntau siv cov wavelengths sib txawv rau sab sauv thiab qis (piv txwv li, 1310nm / 1550nm).

Thaum siv nws:Thaum koj tawm ntawm cov khub fiber ntau thiab tsis tuaj yeem rub cov kab tshiab.

Saib xyuas:BiDi modules yuav tsum tau ua ke kom raug-A- xaus rau B- kawg. Sib tov lawv thiab koj tau txais ib qho - txoj kev sib txuas - debugging uas yog npau suav phem.

 

FB-LINK BiDi Cov Khoom Muag:

Ceev	Form Factor	Qauv piv txwv	Wavelength (TX/RX)	Nyob deb	Interface
10G	SFP +	FB-SFP+-BiDi-10-27/33	1270nm / 1330nm	6 mi/12 mi	LC Simplex
10G	SFP +	FB-SFP+-BiDi-40-27/33	1270nm / 1330nm	25 mi/37 mi	LC Simplex
25G	SFP28	FB-SFP28-BiDi-10-27/33	1270nm / 1330nm	6mi ib	LC Simplex
40G	QSFP +	FB-QSFP-BiDi-SR4	850nm / 900nm (MM)	500ft (OM4)	LC Duplex
100G	QSFP28	FB-QSFP28-BiDi-10/40	1270/1290/1310/1330nm (PAM4)	6 mi/25 mi	LC Simplex
100G	QSFP28	FB-QSFP28-BiDi-BX	1304nm / 1309nm	25mi ib	LC Simplex

 

CWDM/DWDM SFP

Wavelength division multiplexing cia koj khiav ntau txoj kev hla ib qho fiber ntau.

Technology	Channel sib nrug	Zoo tshaj rau	Nqi
CWDM	20nm ua	Luv-rau- nruab nrab thauj	qis
DWDM	0, 8nm	Ntev ntev	Siab dua

Thaum twg mus WDM:Yog tias koj tau tso koj lub peev xwm fiber ntau lawm tab sis xav tau ntau dua bandwidth, CWDM / DWDM yog tus nqi tshaj plaws - ua si tau zoo - txoj kev pheej yig dua li rub cov kab tshiab.

 

 

Ntsiab Specifications

 

1. Kev xa hluav taws xob & txais rhiab heev

Cov ntaub ntawv hais tias:Tx Power: -9.5 ~ -3 dBm, Rx Sensitivity: -20 dBm

Nws txhais li cas tiag:Qhov no txiav txim siab koj cov peev nyiaj txuas.

Link Budget=Min Tx Power - Rx Sensitivity

= -9.5 - (-20)=10.5 dB

 

Tiag -Kev poob ntiaj teb:

Loss Source	Tus nqi
Tib - hom fiber ntau	0.35 dB/km @ 1310nm
Multimode fiber ntau	3.5 dB/km @ 850nm
Fusion splice	0.1dB ib
Txuas	0.5dB ib

Ib txwm tawm 3dB ntawm cov npoo tom qab xam qhov poob. Ib qhov txuas uas yog nyob ntawm ntug yuav pib xa cov pob ntawv thaum lub sijhawm kub hloov pauv.

 

2. DDM/DOM Digital Diagnostics

Qhov no yog tus qauv kub rau kev saib xyuas kev noj qab haus huv module.

Kub (kwv yees: 68-158 ° F / 20-70 ° C)

Qhov hluav taws xob: 3.1-3.5V

Bias tam sim no (yuav tsum ruaj khov nyob rau hauv ntau yam)

TX/RX optical power

 

FB-LINK DDM Output Piv txwv (Cisco-compatible):

Ethernet 1/1/1

transceiver tam sim no

hom yog 100GBASE-LR4

npe yog FB-LINK

tus lej yog FB-QSFP28-LR4

kev kho dua tshiab yog A

Serial tooj yog FB230100123

 

Txoj kab xov tooj: 1

Qhov kub thiab txias: 35.50 C (Thresholds: 75.00 / -5.00 C)

Lub hwj chim: 3.28V (Thresholds: 3.63 / 2.97V)

Ua haujlwm tam sim no: 45.20 mA (Thresholds: 80.00 / 10.00 mA)

TX Lub Zog: 1.50 dBm (Thresholds: 4.50 / -4.50 dBm)

RX Lub Zog: -6.20 dBm (Thresholds: 4.50 / -18.00 dBm)

Kev daws teeb meem:Yog tias lub zog kho qhov muag zoo li zoo tab sis qhov txuas tsis zoo, xyuas qhov kub thiab txias ua ntej. Kuv ib zaug tau taug qab ib rooj plaub uas lub txee tsis muaj cua txias ntaus 185℃F-DDM tau ceeb toom tab sis tsis muaj leej twg saib xyuas. Qhov tshwm sim: pob ntawv poob txhua txhua tav su thaum 3 teev tsaus ntuj (thaum hnub ci tsoo lub qhov rais server chav).

 

3. Compatibility: Qhov Loj tshaj plaws Gotcha

 

OEM vs Compatible Modules

	OEM (Cisco, Juniper, thiab lwm yam)	Tau tshaj (FB-LINK)
Nqe	Siab (${0}} rau Cisco)	Tsawg ($ 20-50)
Warranty	Npog los ntawm cov khoom siv khoom muag	Npog los ntawm tus neeg muag khoom module
Kev ua tau zoo	Lub hauv paus	Tib specs -tsuas yog txheeb xyuas coding

OEM thiab tshaj modulesfeem ntau siv cov chips los ntawm tib lub chaw muag khoom. Qhov txawv tsuas yog tus neeg muag khoom ID hlawv rau hauv firmware. Cov kws tshaj lij tshaj lij cov neeg muag khoom zoo li FB-LINK ua ntej-txoj kev coding kom raug rau cov hom loj.

 

FB-LINK Daim Ntawv Sau Npe:

International:Cisco, Juniper, Arista, Brocade, HP / Aruba, Dell, Intel, Mellanox (NVIDIA)

Asia -Pacific:Huawei, H3C, ZTE, Ruijie

Modules yog ua ntej -coded rau cov neeg siv khoom tshwj xeeb ua ntej xa khoom.

FB-LINK Warranty Policy:

Standard warranty:3 xyoo ntawm optical modules

Hassle- rov qab dawb:30-hnub hloov pauv rau cov teeb meem zoo

Lifetime technical support:Firmware hloov tshiab thiab kev daws teeb meem tej thaj chaw deb suav nrog

Compatibility Checklist:

Paub meej hom chaw nres nkoj (SFP / SFP + / SFP28)

Paub meej tias yuav tsum muaj wavelength thiab deb

Paub meej tias tus neeg muag khoom khoom siv (kom raug coding)

Tom qab tso, xyuas DDM nyeem kom raug

Khiav iperf kom validate qhov tseeb throughput

 

SFP Module Application Scenarios

1. Enterprise Campus Networks

Hom Architecture:

[Core: 10G SFP + LR] ─── Ib qho - hom fiber ntau ─── [Aggregation: 10G SFP + SR]

│

OM3 Multimode

│

[Access: 1G SFP SX]

 

Cov Txheej Txheem Xaiv:

Intra-tsev: 1G SFP-SX (multimode, txuag nyiaj)

Inter-lub tsev: 10G SFP + LR (ib zaug -hom, surge-resistant)

Core: Xav txog 40G / 100G QSFP

 

2. Data Center Interconnect (DCI)

Thaum cov chaw zov me nyuam muaj ntau tshaj 6 mais sib nrug:

Nyob deb	Cov lus pom zoo
6-25 mais	100G QSFP28 ER4
25-50 mais	100G QSFP28 ZR4 + optical amplifier
50+ mais	DCI OTN + DWDM system

 

FB-LINK Case Study: Hong Kong 400G DCI Project

Kev sib tw:Lub tuam txhab loj hauv Hong Kong hauv internet xav tau siab -bandwidth, qis-latency txuas ntawm ob lub chaw cov ntaub ntawv 19 mais sib nrug, xav tau ib zaug - wavelength 400G.

FB -LINK Solution:

Cov khoom siv tseem ceeb:FB-LINK 400G DCI-BOX (1U optical thauj platform, modular tsim)

Technology:400G QSFP-DD ZR/ZR+ coherent optics

Cov ntsiab lus tseem ceeb:

Ib -wavelength 400G:4x lub bandwidth ntawm legacy 100G- tsis muaj fiber ntau tsim yuav tsum tau

OpenZR + ua raws:Ntau- neeg muag khoom sib cuam tshuam rau qis dua - lub sij hawm OpEx

Intelligent O&M:Tiag -lub sij hawm kho qhov muag lub hwj chim thiab OSNR saib xyuas ntawm NMS

Cov txiaj ntsig:Dual -cov ntaub ntawv chaw ua haujlwm txuas nrog<0.5ms latency-meeting requirements for financial trading and AI workload orchestration.

 

3. Carrier/5G Transport Networks

FB-LINK Case Study: China Mobile Shanghai 4 × 25G DWDM Project

Kev sib tw:Kev tawg 5G kev loj hlob ntawm kev loj hlob sab laug ntawm Shanghai Pudong cheeb tsam cuam tshuam luv luv ntawm backhaul fiber ntau. Cov cab kuj xav tau kev nthuav dav ntxiv ntawm cov fiber ntau uas twb muaj lawm.

FB -LINK Solution:

Txoj kev:25G DWDM passive WDM architecture

Module:FB-LINK 25G SFP28 DWDM tunable lossis kho tau -wavelength (C17-C61)

Multiplexers:100GHz DWDM Mux / Demux (4-channel lossis 8-channel)

Kev siv:

Mux/Demux xa tawm ntawm ob tog BBU thiab AAU

4 × 25G teeb liab multiplexed mus rau ib qho fiber ntau

Tag nrho ib leeg - fiber ntau muaj peev xwm: 100G (4 × 25G)-75% fiber ntau txuag

Qhov zoo:

Zero active khoom:Purely passive-tsis xav tau lub zog; deployed nyob rau hauv sab nraum zoov enclosures nrog tsawg tu

Industrial-qib qhov kub thiab txias:Cov qauv ntsuas ntsuas -40℃F txog +185℃F rau qhov hnyav sab nraum zoov

 

Txoj kev daws teeb meem

"Txuas mus"-Qhov teeb meem feem ntau

Troubleshooting Flowchart:

1. Kev kuaj lub cev

└─ Puas yog fiber ntau zaum? Lub ntsej muag kawg puas huv?

 

2. Txheeb xyuas

└─ Puas yog wavelengths tib yam ntawm ob qhov kawg? (1310nm ↔ 1310nm)

└─ Hom fiber ntau puas raug? (single-mode ↔ ib leeg-mode)

 

3. DDM Diagnostics

└─ Puas yog lub zog kho qhov muag nyob rau hauv ib txwm muaj?

└─ Kub kub dhau lawm?

 

4. Kev sib haum xeeb

└─ Lub cuab yeej puas paub lub module?

└─ Ib qho "tsis txhawb nqa transceiver" tswb?

"Txuas mus tab sis tso pob khoom"-Lub Taub Hau

 

Common Uas thiab Kho:

Cov tsos mob	Tej yam ua rau	Kev daws
Lub sij hawm poob	Kub kub	Tshawb xyuas qhov txias; qis ambient temp
Ib -txoj kev poob	BiDi wavelength tsis sib haum	Txheeb xyuas A/B kawg ua khub
Poob hauv qab hnyav hnyav	Cov peev nyiaj txuas tsis txaus	Tshawb xyuas lub zog kho qhov muag; tej zaum yuav xav tau ntau dua -power module
Random poob	qias neeg fiber kawg lub ntsej muag	Ntxuav cov connectors

Veteran Intuition:90% ntawm "tsis paub meej" pob ntawv poob yog qias neeg fiber ntau. Kev nqis peev hauv ob peb tus cwj mem ntxuav thiab kev tshuaj ntsuam xyuas - lawv yuav txuag koj ntau dua li kev hloov pauv qhov muag tsis pom.

 

FAQ

 

FB-LINK Cov Ntaub Ntawv Kev Ntseeg:

Khoom kab	MTBF (Telcordia SR-332)
10G / 25G SFP Series	>1,000,000 teev (~ 114 xyoos)
100G QSFP28 Series	>500,000 teev

Tag nrho cov khoom tau dhau los ua nruj heev / qis kub caij tsheb kauj vab thiab hlawv - hauv kev sim.

Warranty:

Optical modules (SFP / QSFP):3 xyoo

Passive Cheebtsam (Mux / Demux, thaj qaum):5-10 xyoo los yog lub neej

Cov khoom siv ua haujlwm (DCI Box, keyboards):1-3 xyoos

 

3 Yam Hais Txog SFP Modules Cov Phau Ntawv Qhia Yuav Tsis Qhia Koj

Tsis txhob pe hawm tus nqi OEM:Tib chips, tib yam kev ua tau zoo, 10x tus nqi. Cov kws tshaj lij tshaj lij cov neeg muag khoom zoo li FB-LINK tswj QC cov qauv sib npaug nrog - lossis zoo dua li -ntau OEMs.

Spares tseem ceeb tshaj qhov tshwj xeeb:Cov qauv ua tsis tau- feem ntau yog lub sijhawm phem tshaj plaws. Nco ntsoov khaws cov khoom txias txias ntawm koj qhov tseem ceeb tshaj plaws SKUs ntawm tes.

DDM yog koj tus phooj ywg zoo tshaj plaws:Ib txwm yuav modules nrog DDM kev txhawb nqa. Cov me ntsis pheej yig dua uas tsis yog -DDM units yuav ua rau koj dig muag thaum daws teeb meem-thiab koj yuav khuv xim txhua lub nyiaj koj "txuag."