Izici ◊ Isekela uhlelo lokusebenza lwe-4x25GBASE-SR ◊ Ithobelana ne-QSFP28 MSA SFF-8636 kanye ne-SFP28 MSA SFF-8431 kanye ne-SFF- 8472 ◊ Izinga eliningi elifika ku-25.78125Gbps ngomzila ngamunye ◊ Ibanga lokudlulisa amandla 3m ◊ Ibanga lokudlulisela eliphansi ukuya ku-V 5 amandla ukusetshenziswa ◊ izintambo zesitifiketi se-UL (uyazikhethela) ◊ Izinga lokushisa elisebenzayo Okwezentengiso: 0°C ukuya ku-+70 °C ◊ Izicelo ezithobelana ne-RoHS ◊ 4x25Gbe-SR ◊ Ezinye izixhumanisi zokubuka Ukucaciswa: Ithebula Lezilinganiso Eziphelele Eziphelele Eziphelele Zepharamitha. Ubukhulu obujwayelekile. Amanothi Eyunithi Ukunikezela I-Voltage Vcc3 -0.5 - +3.6 V Izinga Lokushisa Lesitoreji Ts -10 - +70 °C Umswakamo Osebenzayo RH +5 - +85 % 1 Qaphela: 1 Akukho ukufiphala Okunconyiwe Kwezimo Zokusebenza Ithebula 2- Izimo zokusebenza ezinconyiwe Ipharamitha Isimboli Esincane. Ubukhulu obujwayelekile. Amanothi Eyunithi Ithempelesha Yokusebenza TC 0 - +70 °C I-Voltage Yokunikezela Amandla Vcc 3.14 3.3 3.47 V Ukushabalaliswa kwamandla nge-QSFP28 Pd ngayinye - - 2.5 W Ukushabalaliswa kwamandla nge-SFP28 Pd - - 1.0 W 1 Bit Rate Ngomzila 3 BR 58 12: 5 Note BR 3. 1 Ithebula Lezimpawu Zezici Zogesi 1 Ithebula 3- Izimpawu Zogesi ze-QSFP28 Ipharamitha Yophawu LweMiz. Thayipha. Ubukhulu. Amayunithi Amanothi Imojula ye-ModSelL Khetha i-VOL 0 - 0.8 V Imojula Ungakhethi VOH 2.5 - VCC V LPMode Imodi Yamandla Aphansi VIL 0 - 0.8 V Ukusebenza Okujwayelekile VIH 2.5 - VCC+0.3 V Setha Kabusha i-VIL 0 - 0.8 V Ukusebenza Okujwayelekile VIH+0.5. V ModPrsL Ukusebenza Okujwayelekile VOL 0 - 0.4 V IntL Ukuphazamisa VOL 0 - 0.4 V Ukusebenza Okujwayelekile VoH 2.4 - VCC V Izici Zokudluliswa Kagesi Differential Idethi Yokufaka Swing Vin,PP 200 - 1600 mV Umehluko Wokukhipha Impedance ZIN 90 100 100 110 Idatha Ehlukile Yokuphuma Kagesi I-Swing Vout 200 - 800 mVPP Iphutha Lesilinganiso Sebhithi BER E-12 1 Umehluko Wokufaka Umehluko ZD 90 100 110 Ω Qaphela: 1 PRBS2^31-1@25.78125Gbps Ithebula 4- Ipharamitha Yokugesi Ye-SFP28 Thayipha. Ubukhulu. Amayunithi Amanothi Izimpawu Zezici Zokudluliswa Kagesi Umehluko Wokufaka Kwedatha Swing Vin,PP 200 - 1600 mVPP Umehluko Wokufaka Umehluko ZIN 90 100 110 Ω Tx_Fault Ukusebenza Okujwayelekile VOL 0 - 0.8 V Transmitter Fault VOH VOH 20H Normal T0 -Operation Normal VOH 2. I-0.8 v Laser Khubaza i-VIH 2.0 - I-VCC + 0.3 V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V VEL EREL CREENTIAL DEST DECTU OUTVOD DECTU OUTVOPT DECTU OUTVOPT DETUTE DOUT 400 - I-800 MV Bit Eless Implance ZD 90 100 110 I-Signal VoH 2.0 - Ukuhlelwa Kwephinikhodi ye-VCC V Umfanekiso 1, Ukubuka Kwephini Ye-QSFP28 Ithebula 5- Izincazelo Zomsebenzi Wephinikhodi Ye-QSFP28 Iphinikhodi Yophawu Lwegama/Amanothi Encazelo 1 GND Ground 1 2 Tx2n Transmitter Inverted Data Input 3 Tx2p Transmitter Non-Inputter Data Non-Inputter 1 5 tx4n Okokufaka Kwedatha Eguquliwe Kwe-Transmitter 6 Okokufaka Kwedatha Engaguquki ye-Tx4p 7 GND Ground 1 8 ModSelL Imojuli Khetha 9 Setha Kabusha Imojuli ye-L Setha Kabusha 10 Vcc Rx +3.3V Isamukeli Sokuphakelwa Kwamandla 11 SCL 2-wire serial interface iwashi 12 isixhumi esibonakalayo sedatha ye-serial 2 GND Ground 1 14 I-Rx3p Receiver Okukhiphayo Kwedatha Engaguquliwe 15 Rx3n Isamukeli Esiguquliwe Okukhiphayo Kwedatha 16 GND Ground 1 17 Rx1p Isamukeli Okukhiphayo Kwedatha Engaguquki 18 Rx1n Isamukeli Umphumela Wedatha Ehlanekezelwe 19 GND Ground 1 20 Inqolobane Yedatha Ground 1 20 Incephe yedatha Okukhiphayo 22 I-Rx2p Isamukeli Okukhiphayo Kwedatha Engaguquliwe 23 GND Ground 1 24 Rx4n Isamukeli Esihlanekezelwe Iphinikhodi Yokukhipha Idatha Igama/Amanothi Encazelo 25 Isamukeli Sedatha Engaguquki 26 GND Ground 1 2 Module 29 I-Present VPCCRS I-Tx +3.3V Isidluliseli samandla 30 Vcc1 +3.3V Ukunikezwa kwamandla 31 LPMode Imodi Yamandla Aphansi 32 GND Ground 1 33 Tx3p Transmitter I-Non-Inverted Data Input 34 Tx3n Transmitter Inverted Data Input 35 GND Ground 1 36 Transmitter Input Input-InputIn 7 Tx1 Tx1n I-Transmitter Inverted Data Input 38 GND Ground 1 Qaphela: 1. Inkundla yesifunda ihlukaniswe ngaphakathi endaweni ye-chassis. Umfanekiso 2, Ukubuka Kwephinikhodi kwe-SFP28 Ithebula Le-6-Pini Umsebenzi Izincazelo Iphinikhodi Yophawu/Amanothi Encazelo 1 I-VEET Module Transmitter Ground 1 2 TX_FAULT Iphutha Lokudluliswa Kwemojula 2 3 TX_DISABLE Transmitter Disable; Ivala okukhipha i-laser transmitter 3 4 SDA 2-Wire Serial Interface Data Line (MOD-DEF2) 5 SCL 2-Wire Serial Interface Clock (MOD-DEF1) 6 MOD_ABS Imojula Ayikho, exhunywe ku-VEET noma i-VEER kumojuli 2 7 RS0 Rate Khetha u-0, ngokuzikhethela ulawula umamukeli wemojuli ye-SFP+ 4 8 RX_LOS Ukulahleka Kwesamukeli ye-Signal Indication (Ku-FC eqokwe njenge-Rx_LOS naku-Ethernet eqokwe NJENGAWUKHO I-Signal Detect) 2 9 RS1 Rate Khetha 1, ngokuzikhethela ilawula i-SFP+ module transmitter 4 Pin Symbol Name/Incazelo 10 VEER Module Receiver Ground 1 11 VEER Module Receiver 12 Ground I-RD- Receiver Inverted Data Output 13 I-RD+ Receiver Nonverted Data Output 14 VEER Module Receiver Ground 1 15 VCCR Module Receiver 3.3 V Supply 16 VCCT Module Transmitter 3.3 V Supply 17 VEET Module Transmitter Ground 1 18 TD+ Transmitter Inputter 9 Data Inputter TD Okokufaka kwe-20 VEET Module Transmitter Ground 1 Qaphela: Izikhonkwane zomhlabathi zemojuli zihlukanisiwe nekesi lemojuli. Izikhonkwane zizodonswa nge-4.7K-10Kohms ku-voltage ephakathi kuka-3.14V no-3.46V ebhodini lomsingathi. Iphinikhodi idonselwa ku-VCCT nge-resistor engu-4.7K-10KΩ kumojuli. Bheka i-SFF-8472 Rev12.2 Ithebula 10-2. Umfanekiso 3 we-Circuit onconyiwe, i-Interface Circuit enconyiwe ye-QSFP28 Umfanekiso 4, Ibhodi Lokusingatha Elinconyiwe I-Power Supply Circuit ye-SFP28 Umfanekiso 5, I-Interface Circuit Enconyiwe ye-SFP28 Monitoring Specification Figure 6, Memory Memory, I-SFP7 Map28 FimorySFP Mechanical Unit mm Umfanekiso 8, Ithebula Lomdwebo Womshini 7- Ubude Bekhebula Lobude L1 (Iyunithi: m) Ibekezelela (Iyunithi: cm) ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 L 5≤5 +15/-0 5≤5. 30/-0 ＞14.5 +2%/-0 Ithebula 8- Ikhebula Lokuhlukana Linganisa Ubude Obuphelele L1 (Iyunithi: m) Iphuzu Lokuphuka Likalwe kusukela ku-SFPL2(Iyunithi: m) 1 0.7 2 1.4 3 2 ≥5 3 Izexwayiso Zokuphatha Izinyathelo Zokuqaphela: Le divayisi iyathinteka ukulimala ngenxa yokukhishwa kwe-electrostatic discharge (ESD). Indawo ekhululekile enganyakazi inconywa kakhulu. Landela imihlahlandlela ngokwezinqubo ezifanele ze-ESD. Ukuphepha Kwe-Laser: Imisebe ekhishwa yimishini ye-laser ingaba yingozi emehlweni abantu. Gwema ukuchayeka kweso emisebeni eqondile noma engaqondile.