DAC yog dav siv nyob rau hauv thaj chaw khaws cia network, cov ntaub ntawv chaw thiab kev ua haujlwm siab ntawm lub koos pis tawj, thiab maj mam nce hauv kev sib txuas lus hauv network.
Muaj ob hom DAC, ib qho yog 10g SFP + DAC, lwm qhov yog 40g qsfp + rau 4 SFPs +. Cov chaw nres nkoj ntawm cov cable no tsis tuaj yeem hloov tau, tsuas yog cov kav hlau tiav lawm tuaj yeem hloov ua ke, thiab cov taub hau thiab tooj liab cable tsis tuaj yeem sib cais.
Nta
Ua kom tau raws li SFF- 8436, SFF-8431, SFF-8432 thiab SFF-8472
Txog li 10. 3125Gbps cov ntaub ntawv tus nqi rau ib channel
Txog li 7m kis
Kev ua haujlwm kub: -40 ℃ txog +80 ℃
Ib qho fais fab 3.3V fais fab
Qhov raws RoHS
Cov txiaj ntsig
Tus nqi them zoo tooj liab
Qhov qis qis tshaj plaws tag nrho cov hwj huam kaw lus daws teeb meem
Qis qis tag nrho qhov system EMI daws
Qhov qauv tsim tau rau Txheej Txheem Ntseeg Txhim Kho
Cov ntawv thov
40G Ethernet
Kev Tsim Yam Khoom Tseem Ceeb
Q / 4SFP + DAC Cov Lus Qhia | |
Tooj ntawm Lanes | Tx& Rx |
Channel Cov Nqi Ntaub Ntawv | 10.3125 Gbps |
Kev khiav hauj lwm kub | 0 txog rau ° 70 ° C |
Cia Khoom Kub | -40 txog + 85 ° C |
Cov Khoom Muag Hluav Taws Xob | 3.3 V nominal |
Kev Sib Txuas Hluav Taws Xob | 38 pins ntug txuas (QSFP +) 20 pins ntug txuas (SFP +) |
Kev tswj fwm | Txog, I2C |
Cov yam ntxwv kub ceev
Tsis | Lub Cim | Min | Ntaus | Max | Chav Nyob | Sau ntawv |
Plawg txawv | Zd | 90 | 100 | 110 | Ω | |
Plawg Cov tswv yim xa rov qab Poob | SDDXX | GG lt; -12+2 * SQRT (f) nrog f hauv GHz | dB | 0.01 ~ 4.1GHz | ||
GG lt; -6.3+13 * Log10 / (f / 5.5) nrog f hauv GHz | dB | 4.1 ~ 11.1GHz | ||||
Hom Kev Tawm Tsam Rov Ua Dua Rov Los Poob | SCCXX | GG lt; -7+1.6 * f nrog f hauv GHz | dB | 0.01 ~ 2.5GHz | ||
-3 | dB | 2.5 ~ 11.1GHz | ||||
Tus Txheeb Ze Waveform Distortion Kev Sib Tw | dWDPc | 6.75 | dB | |||
VMA Poob | L | 4.4 | dB | |||
VMA Poob rau Crosstalk Piv | VCR | 32.5 | dB | |||
Tus qauv ntawm kev kub ceev cable DAC yog dab tsi?
Yooj yim muab, txoj kev kub ceev cable DAC txuas cov kho qhov muag ntawm ob qho kawg ntawm ib txoj xov tooj.
Hauv kev nthuav dav, lub siab ceev cable DAC yog ua los ntawm cov nyiaj plated neeg xyuas pib thiab ua npuas insulated tub ntxhais hlau, uas siv cov kab thaiv kab thaiv thiab tag nrho cov kev tiv thaiv, yog li tsim txoj kab hluav taws xob loj. Ntawm no yog duab.
Dab tsi yog cov khoom ntawm kev kub ceev cable DAC?
1: 100g qsfp28 DAC ncaj qha xaim xaim xaim
100ge qsfp28 passive tooj liab cable tuaj yeem muab cov neeg siv khoom nrog 100GB / high bandwidth cov ntaub ntawv sib txuas muaj peev xwm thiab muab 4-txoj kev duplex. Tus nqi ua haujlwm ntawm txhua cov channel tuaj yeem muaj txog 25gb / s, thiab qhov sib pauv bandwidth yog 100GB / s
Sff -8665 / sff -8679 thiab IEEE 802.3bj thiab Infiniband EDR
Nws tuaj yeem txhawb nqa qhov kev ncua deb ntawm 1 m mus rau 3 m. Cov khoom yog dav siv nyob rau hauv cov ntaub ntawv chaw lossis Supercomputer Center system scenarios
2: 100ge qsfp28 txog 25g sfp28 DAC ncaj qha xaim xaim xaim
100ge qsfp28 txog 4x 25ge sfp28 parallel kiv cua tawm passive tooj liab tuaj yeem muab cov neeg siv khoom nrog 100GB / siab bandwidth cov ntaub ntawv sib cuam tshuam muaj peev xwm, ib kawg ntawm qhov yog 100ge qsfp28 thiab lwm qhov kawg yog 4x 25ge sfp28
Sff -8665 / sff -8679 thiab IEEE 802.3bj thiab Infiniband EDR
Nws txhawb nqa nrug deb li ntawm 1-3 meters, uas yog dav siv nyob rau hauv cov ntaub ntawv chaw lossis Supercomputing Center system scenarios
Qhov zoo ntawm kev kub ceev cable DAC muaj raws li hauv qab no:
1. Kev ua haujlwm siab: nws yog tsim rau cov xov hlau luv luv nyob hauv cov ntaub ntawv chaw, nrog rau ntau daim ntawv thov ntau yam thiab muaj zog sib xyaw ua ke muaj peev xwm.
2. Kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig: cov khoom siv sab hauv ntawm high-speed cable yog tooj liab tub ntxhais, lub tshav kub dissipation nyhuv ntawm tooj liab cable yog qhov zoo, txuag lub zog thiab kev tiv thaiv ib puag ncig.
3. Tsawg zog siv hluav taws xob: tsawg zog siv ntawm high-speed cable. Vim tias lub tshuab hluav taws xob passive tsis xav tau hluav taws xob, qhov kev siv fais fab yuav luag xoom; lub zog noj ntawm cov nquag cable feem ntau kwv yees 440mw.
4. Tus nqi qis: tooj liab yog pheej yig dua li cov fiber ntau, yog li siv cov xov hluav taws xob nrawm muaj peev xwm txo tau cov nqi cabling ntawm tag nrho cov ntaub ntawv chaw.
Neeg Kho Tshuab Cov Ncauj Lus
Cov khoom sib txuas ua ke nrog SFF-8436 rau SFF-8432 tshwj xeeb.
Piv nrog AOC, DAC muaj ntau yam zoo. Tus nqi yuam kev me ntsis (BER) ntawm Avago active cable yog 10-15, thaum ntawd cov ntawm tooj liab hluav taws xob ncaj qha yog 10-12. Ntawd yog hais, qhov yuam kev me ntsis ntawm Avago active cable yog tsawg dua ib zaug ib hnub, thaum uas cov tooj liab cable yog ib zaug txhua 1-2 feeb. Txij li lub teeb liab EMI siab ua tiav nyob rau hauv lub pluggable module, tsuas yog lub teeb liab kho qhov muag yuav dhau los ntawm lub kho qhov muag cable, yog li EMI kev tiv thaiv ntawm cov nquag kho qhov muag cable tau zoo dua li ntawm cov txuas ncaj qha tooj liab. Thaum muaj 10g ceev, qhov sib txuas deb ntawm SFP + thiab qsfp + cov ntawm cov xov tooj nquag no tuaj yeem ncav cuag 20 meters, thaum lub tooj liab txuas tsuas yog me ntsis ntau dua 5 meters. Tsis tas li ntawd, qhov nyhav ntawm cov nquag kho qhov muag cable tsuas yog 25% ntawm qhov ntawm cov tooj liab tooj liab ncaj qha, thiab txoj kab uas hla ntawm lub cable tseem me dua. Qhov tsawg kawg nkaus khoov vojvoog ntawm lub cable tsuas yog 30 hli, uas yog qhov zoo dua li ntawm qhov txuas txuas tooj liab tooj liab. Cov txiaj ntsig zoo ntawm no tuaj yeem nqa cov neeg siv khoom kho thiab daws teeb meem uas ua tau raws li cov kev xav tau ntawm high-density optical interconnection specifications.
HTF' s Cov Ntawv Txuas Ncaj Nraim muaj cov kab tiav, lub sijhawm lav ntev thiab tus nqi tsim nyog.
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