Features Support 4x25GBASE-SR applicationes Obsequium ad QSFP28 MSA SFF-8636 et SFP28 MSA SFF-8431 et SFF- 8472 Multis ratis usque ad 25.78125Gbps per lane Transmissio distantiae ad 50m +3.3V unius potentiae copia Minimum. potentia consummatio UL certificatione cables (libitum) operans temp Commercial: 0°C ad 70 °C RoHS applicationes obsequentes ◊ 4x25Gbe-SR Alii optici nexus Specification: Absolute Maximum Ratings Table1 - Absoluta Maximum Ratings Parametri Symbol Min. Typical Max. Unit Notae Supple Voltage Vcc3 -0.5 - +3.6 V Repono Temperature Ts -10 - +70 °C Umor RH Operating +5 - +85 % 1 Note: 1 Nulla condensatio Commendatur Operating Conditionibus Tabula 2- Commendatur Operating Conditions Parameter Symbol Min. Typical Max. Unit Praecipua Operating Temperature TC 0 - +70 °C Potentia Supple Voltage Vcc 3.14 3.3 3.47 V Virtutis Dissipatio per QSFP28 Pd - - 2.5 W Potentia Dissipatio per SFP28 Pd - - 1.0 W 1 Bit Rate per Lane BR 10.3125 25.78125 - Gbps Note: 1 Per terminal Characteres Electrical Table 3- Characteres Electrical for QSFP28 Symbolum Parametri Min. Typ. Maximilianus. Unitates Praecipuae ModSelL Module Selectae VOL 0 - 0.8 V Module Unselectae VOH 2.5 - VCC V LPMode Modus Vilis VII 0 - 0.8 V Normalis Operatio VIH 2.5 - VCC+0.3 V Reset VIL 0 - 0.8 V Reset Operatio VIH 2.5 - VCC+0.3 V ModPrsL Normal Operation VOL 0 - 0.4 V IntL Interrupt V 0 - 0.4 V Normal Operatio VoH 2.4 - VCC V Electrical Transmitter Characteres Differential Date Input Swing Vin,PP 200 - 1600 mV Output Differential Impedance ZIN 90 100 110 Ω Electrical Receptor Characteres Differential Data output Swing Vout 200 - 800 mVPP Bit Error Rate BER E-12 1 Input Differential Impedimentum ZD 90 100 110 Ω Note: 1 PRBS2^31-1@25.78125Gbps Table 4- Characteristics Electrical for SFP28 Parameter Symbol Min. Typ. Maximilianus. Unitates Electrical Transmitter Characteres Differentialis Data Input Swing Vin, PP 200 - 1600 mVPP Input Impedimentum Differentialis ZIN 90 100 110 Ω Tx_Fault Operatio Normalis VOL 0 - 0.8 V Transmitter Culpa VOH 2.0 - VCC V Tx Disable Normal Operatio VII 0 - 0.8 V Laser Disable VIH 2.0 - VCC+0.3 V Receptor Electrical Characteres Differentialis Date Output Vout 400 - 800 mV Bit Error Rate BER - - E-12 - Output Impedimentum Differentialis ZD 90 100 110 Ω Rx_LOS Normalis Operatio VOL 0 - 0.8 V Amitte signum VoH 2.0 - VCC V Pin Ordinatio Figura 1, Pin View pro QSFP28 Tabula 5. Pin Function Definitiones pro QSFP28 Pin Symbol Nomen / Description Praecipua I GND Humus I II Tx2n Transmitter Inverted Data Input III Tx2p Transmitter Non Inversa Data Input 4 GND Humus 1 5 Tx4n Transmitter Inverted Data Input 6 Tx4p Transmitter Non Inversus Data Input 7 GND Humus 1 8 ModSelL Module Select 9 ResetL Module Reset 10 Vcc Rx +3.3V Virtutis Supple Receptorem 11 SCL 2-filum Vide interface horologium 12 SDA 2-filum Vide interface data 13 GND Humus 1 14 Rx3p Receptor Non Inversa Data Output 15 Rx3n Receptor inversus Data Output 16 GND Humus 1 17 Rx1p Receptor Non Inversus Data Output 18 Rx1n Receptor inversa Data Output 19 GND Humus 1 20 GND Humus 1 21 Rx2n Receptor inversus Data Output 22 Rx2p Receptor Non Inversa Data Output 23 GND Humus 1 24 Rx4n receptorem Inverted Data Output Pin Symbol Name/Descriptio Praecipua XXV Rx4p Receptor Non Inversus Data Output 26 GND Humus 1 27 ModPrsL Module Praesens 28 IntL Interrumpo 29 Vcc Tx +3.3V Virtutis copia Transfusor 30 Vcc1 +3.3V Virtutis copia 31 LPMode Low Modus 32 GND Humus 1 33 Tx3p Transmitter Non Inversus Data Input XXXIV Tx3n Transmitter Inverted Data Input XXXV GND Erat I XXXVI Tx1p Transmitter Non Inversa Data Input 37 Tx1n Transmitter Inversa Data Input 38 GND Humus 1 Nota: 1. Circuitus humus interne a gb terra segregatus est. Figura II, Pin View pro SFP28 Tabula 6-pin Function Definitions Pin Symbol Name/Descriptio Praecipua 1 VEET Modulus Transmitter Humus 1 2 TX_FAULT Module Transmitter Culpa 2 3 TX_DISABLE Transmitter Inactivare; Vertitur transfusor laser output 3 4 SDA 2-filum Serial interface Data Lineae (MOD-DEF2) 5 SCL 2-Wire Serial interface Clock (MOD-DEF1) 6 MOD_ABS Modulus Absens, connexus VEET vel VEER in modulo 2 7 RS0 Rate Lego 0, optionally moderatur receptaculum moduli SFP+ 4 8 RX_LOS Receptoris Damnum Signi Indicationis (In FC ut Rx_LOS et designatum. in Ethernet designatum ut non signum Detect) 2 9 RS1 Rate Select 1, optionally controls SFP+ moduli transfusor 4 Pin Symbol Name/Description Notes 10 VEER Module Receptor Humus 1 11 VEER Module Receptor Ground 1 12 RD- Receptor Inverted Data Output 13 RD Acceptor Non Inverted Data Output 14 VEER Module Receptor Humus 1 15 VCCR Module Receptor 3.3 V Supple 16 VCCT Module Transmitter 3.3 V Supple 17 VEET Module Transmitter Ground 1 18 TD+ Transmitter Non Inverted Data Input 19 TD- Transmitter Inverted Data Input 20 VEET Module Transmitter Ground 1 Nota: Moduli humus fibulae a casu moduli separatae. Clavi evellentur cum 4.7K-10Kohms ad intentionem inter 3.14V et 3.46V in tabula hospitis. Acus VCCT evellitur cum 4.7K-10KΩ resistor in modulo. Vide SFF-8472 Rev12.2 Tabula 10-2. Commendatur Circuit Figura 3, Commendatur Interface Circuitus pro QSFP28 Figura 4, Commendatur Hostiae Tabula Power Supple Circuitum pro SFP28 Figura 5, Commendatur Circuit Interface SFP28 Monitoring Specification Figura 6, Memoria Map pro QSFP28 Figura 7, Memoria Map pro SFP28 Mechanica Unitas mm Figura 8 , Tabula mechanica Diagram 7. Cable Longitudo Cable Longitudo L1（Unit: m） Tolerant（Unit: cm） ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 4.5＜L≤14.5 +30/-0 ＞14.5 +2%/-0 Tabula 8- Breakout Cable Nominalis Longitudo Totalis L1 (Unit: m) Breakout Point mensuratum ab SFPL2(Unit : m) 1 0.7 2 1.4 3 2 ≥5 3 Admonitiones tractandi Cautiones: Haec machina est obnoxia detrimentum propter missionem electrostaticae (ESD). Suspendisse sit amet libero mauris. Sequere lineas secundum ESD rationes proprias. Safety laser: Radiatio emissa machinis laser oculis humanis periculosa esse potest. Vitare oculus nuditate ad radialem directam vel indirectam.