Zvimiro ◊ Tsigira 4x25GBASE-SR application ◊ Inopindirana neQSFP28 MSA SFF-8636 uye SFP28 MSA SFF-8431 uye SFF- 8472 ◊ Multi rate inosvika 25.78125Gbps pamukoto ◊ Kuendesa kureba kwe3 ◊ Kuendesa kure kusvika kuV 5 simba kushandiswa ◊ UL certification cables (optional) ◊ Kushanda tembiricha Kutengeserana: 0°C kusvika +70 °C ◊ RoHS inoenderana Zvishandiso ◊ 4x25Gbe-SR ◊ Zvimwe zvinongedzo zvemaziso Tsanangudzo: Absolute Maximum Ratings Table1- Absolute Symbol Maximum Ratings. Typical Max. Unit Notes Supply Voltage Vcc3 -0.5 - +3.6 V Storage Temperature Ts -10 - +70 °C Operating Humidity RH +5 - +85 % 1 Cherechedza: 1 No condensation Inokurudzirwa Operating Conditions Tafura 2- Yakakurudzirwa kushanda Mamiriro ezvinhu Parameter Symbol Min. Typical Max. Unit Notes Operating Temperature TC 0 - +70 °C Power Supply Voltage Vcc 3.14 3.3 3.47 V Power Dissipation per QSFP28 Pd - - 2.5 W Power Dissipation per SFP28 Pd - - 1.0 W 1 Bit Rate per Lane BR 28 12 Note. 1 Perterminal Electrical Characteristics Table 3- Mamiriro eMagetsi eQSFP28 Parameter Symbol Min. Typ. Max. Units Notes ModSelL Module Sarudza VOL 0 - 0.8 V Module Unselect VOH 2.5 - VCC V LPMode Low Power Mode VIL 0 - 0.8 V Normal Operation VIH 2.5 - VCC+0.3 V ResetL Reset VIL 0 - 0.8 V Normal Operation VIH + 0.5. V ModPrsL Yakajairika Kushanda VOL 0 - 0.4 V IntL Kuvhiringidza VOL 0 - 0.4 V Normal Operation VoH 2.4 - VCC V Electrical Transmitter Characteristics Differential Date Input Swing Vin,PP 200 - 1600 mV Output Differential Impedance ZIN 90 100 100 110 Differential Data Swing Vout 200 - 800 mVPP Bit Error Rate BER E-12 1 Input Differential Impedance ZD 90 100 110 Ω Cherechedzo: 1 PRBS2^31-1@25.78125Gbps Tafura 4- Magetsi Maitiro eSFP28 Symbol Typ. Max. Units Notes Electrical Transmitter Characteristics Differential Data Input Swing Vin,PP 200 - 1600 mVPP Input Differential Impedance ZIN 90 100 110 Ω Tx_Fault Normal Operation VOL 0 - 0.8 V Transmitter Fault VOH VOH 20 - Normal VOH 20. 0.8 v Laser Disable Vih 2.0 - V Magetsi + Signal VoH 2.0 - VCC V Pini kuronga Mufananidzo 1, Pin View yeQSFP28 Table 5- Pin Function Definitions for QSFP28 Pin Symbol Zita/Tsananguro Notes 1 GND Ground 1 2 Tx2n Transmitter Inverted Data Input 3 Tx2p Transmitter Inopinza DataND Isiri Yekupinda 4 1 5 Tx4n Transmitter Inverted Data Input 6 Tx4p Transmitter Isina-Inverted Data Input 7 GND Ground 1 8 ModSelL Module Sarudza 9 ResetL Module Reset Reset 10 Vcc Rx +3.3V Power Supply Receiver 11 SCL 2-waya serial interface wachi 11 serial data 2 data GND Ground 1 14 Rx3p Receiver Isina-Inverted Data Inobuda 15 Rx3n Receiver Inopindurwa Dhata Inobuda 16 GND Ground 1 17 Rx1p Receiver Isiri Inverted Data Inobuda 18 Rx1n Receiver Inopindurwa Dhata Inobuda 19 GND Ground 1xver 20 Ground 1 20 Ground ReceiND Yakabuda 22 Rx2p Receiver Isiri Inverted Data Output 23 GND Ground 1 24 Rx4n Receiver Inverted Data Output Pin Symbol Name/Tsananguro Notes 25 Rx4p Receiver Isingapindirwe Dhata Inobuda 26 GND Ground 1 2 Module 27 VPSCCRSL 27 Moduli VPSCCRS Tx +3.3V Power supply transmitter 30 Vcc1 +3.3V Power supply 31 LPMode Low Power Mode 32 GND Ground 1 33 Tx3p Transmitter Isingapindirwe Data Input 34 Tx3n Transmitter Inverted Data Input 35 GND Ground 1 Transmitter 3 Input Input-7 Tx1n Transmitter Inverted Data Input 38 GND Ground 1 Cherechedza: 1. Circuit ground yakaparadzaniswa nechomukati kubva kune chassis pasi. Mufananidzo 2, Pin View yeSFP28 Tafura 6-Pini Basa Tsanangudzo Pini Symbol Zita/Tsananguro Notes 1 VEET Module Transmitter Ground 1 2 TX_FAULT Module Transmitter Fault 2 3 TX_DISABLE Transmitter Disable; Inodzima transmitter laser kubuda 3 4 SDA 2-Wire Serial Interface Data Line (MOD-DEF2) 5 SCL 2-Wire Serial Interface Clock (MOD-DEF1) 6 MOD_ABS Module Isipo, yakabatana neVEET kana VEER mune module 2 7 RS0 Rate. Sarudza 0, inodzora SFP + module inogamuchira 4 8 RX_LOS Receiver Kurasika yeSignal Indication (MuFC yakasarudzwa seRx_LOS uye muEthernet yakasarudzwa seNOT Signal Detect) 2 9 RS1 Rate Sarudza 1, inodzora SFP+ module transmitter 4 Pini Symbol Zita/Tsananguro Notes 10 VEER Module Receiver Ground 1 11 VEER Module Receiver 12 Ground RD- Receiver Inverted Data Output 13 RD+ Receiver Isiri Inverted 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 Inverted 9 Data InputD Input 20 VEET Module Transmitter Ground 1 Cherechedza: Iyo module yepasi pini yakaparadzaniswa kubva kune module kesi. Mapini achadhonzwa ne4.7K-10Kohms kune voltage iri pakati pe3.14V uye 3.46V pabhodhi rekutambira. Iyo pini inodhonzwa kusvika kuVCCT ine 4.7K-10KΩ resistor mune module. Ona SFF-8472 Rev12.2 Table 10-2. Recommended Circuit Figure 3, Recommended Interface Circuit for QSFP28 Figure 4, Recommended Host Board Power Supply Circuit for SFP28 Figure 5, Recommended Interface Circuit for SFP28 Monitoring Specification Mufananidzo 6, Memory28 Mepu yeSFP8 Mepu yeQFP8 Mepu Mechanical Unit mm Mufananidzo 8, Mechanical Diagram Table 7- Cable Length Cable Length L1 (Unit: m) Kushivirira (Unit: cm) ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 5≤5. 30/-0 ＞14.5 +2%/-0 Tafura 8- Breakout Cable Nominal Length Total Length L1 (Unit: m) Breakout Point Measured from SFPL2(Unit: m) 1 0.7 2 1.4 3 2 ≥5 3 Yambiro Mabatiro Ekuchengetedza: Ichi chishandiso chinogona kukuvadza semhedzisiro ye electrostatic discharge (ESD). A static free environment inokurudzirwa zvikuru. Tevedzera nhungamiro zvinoenderana nekwakakodzera ESD maitiro. Laser Kuchengeteka: Radiation inoburitswa nelaser zvishandiso inogona kuve nengozi kumaziso evanhu. Dzivisa kuratidzwa kweziso kune yakananga kana isina kunanga mwaranzi.