Fitur ◊ Ndhukung aplikasi 4x25GBASE-SR ◊ Compliant kanggo QSFP28 MSA SFF-8636 lan SFP28 MSA SFF-8431 lan SFF- 8472 ◊ Multi rate nganti 25.78125Gbps saben lane ◊ Jarak transmisi nganti 50m ◊ sumber daya tunggal ◊ +3.3. konsumsi daya ◊ kabel sertifikasi UL (opsional) ◊ Operating temp Komersial: 0°C nganti +70 °C ◊ RoHS compliant Aplikasi ◊ 4x25Gbe-SR ◊ Link optik liyane Specification: Absolute Rating Maksimum Tabel1- Absolute Ratings Maksimum Parameter Simbol Min. Biasane Max. Cathetan Unit Tegangan Pasokan Vcc3 -0,5 - +3,6 V Suhu Panyimpenan Ts -10 - +70 °C Kelembapan Operasi RH +5 - +85 % 1 Cathetan: 1 Ora ana kondensasi Kahanan Operasi sing Disaranake Tabel 2- Kahanan Operasi sing Disaranake Simbol Parameter Min. Biasane Max. Cathetan Unit Suhu Operasional TC 0 - +70 °C Tegangan Pasokan Daya Vcc 3.14 3.3 3.47 V Dissipasi Daya saben QSFP28 Pd - - 2.5 W Dissipasi Daya saben SFP28 Pd - - 1.0 W 1 Bit Rate saben Lane BR 10.3125 25.3125 Wigati: Per terminal Listrik Karakteristik Tabel 3- Karakteristik Listrik kanggo QSFP28 Simbol Parameter Min. Tipe. Maks. Cathetan Unit Modul ModSelL Pilih VOL 0 - 0.8 V Modul Batal Pilih VOH 2.5 - VCC V LPMode Low Power Mode VIL 0 - 0.8 V Operasi Normal VIH 2.5 - VCC+0.3 V ResetL Reset VIL 0 - 0.8 V Operasi Normal VIH 2.5 - VCC+0. V ModPrsL Operasi Normal VOL 0 - 0.4 V Interrupt IntL VOL 0 - 0.4 V Operasi Normal VoH 2.4 - VCC V Karakteristik Pemancar Listrik Tanggal Diferensial Input Swing Vin,PP 200 - 1600 mV Output Impedansi Diferensial ZIN 90 100 110 Ω Karakteristik Receiver Listrik 20 Error V0 Output Data Diferensial Tingkat BER E-12 1 Input Impedansi diferensial ZD 90 100 110 Ω Cathetan: 1 PRBS2^31-1@25.78125Gbps Tabel 4- Karakteristik Listrik kanggo SFP28 Simbol Parameter Min. Tipe. Maks. Cathetan Unit Pemancar Listrik Karakteristik Input Data Diferensial Swing Vin,PP 200 - 1600 mVPP Input Impedansi Diferensial ZIN 90 100 110 Ω Tx_Fault Operasi Normal VOL 0 - 0,8 V Transmitter Fault VOH 2.0 - VCC V Tx_Disable VI Normal Operasi VOH 2.0 - VCC V Tx_Disable VI. 2.0 - VCC+0.3 V Electrical Receiver Karakteristik Tanggal Diferensial Output Vout 400 - 800 mV Bit Error Rate BER - - E-12 - Output Impedansi Diferensial ZD 90 100 110 Ω Rx_LOS Operasi Normal VOL 0 - 0.8 VCC Lose Signal V. Susunan pin Gambar 1, Pin Deleng kanggo QSFP28 Tabel 5- Definisi Fungsi Pin kanggo QSFP28 Simbol Pin Jeneng/Cathetan Keterangan 1 GND Ground 1 2 Tx2n Transmitter Invert Data Input 3 Tx2p Transmitter Non-Inverted Data Input 4 GND Ground 1 5 Tx4n Transmitter Inverted Data Input 6 Tx4n Transmitter Inverted Data Input 6 Input Data Kuwalik 7 GND Ground 1 8 ModSelL Module Select 9 ResetL Module Reset 10 Vcc Rx +3.3V Power Supply Receiver 11 SCL 2-wire serial interface clock 12 SDA 2-wire serial interface data 13 GND Ground 1 14 Rx3p Receiver Non-Inverted Data Output 15 Rx3n Inverted Receiver Output Data 16 GND Ground 1 17 Rx1p Receiver Non-Inverted Data Output 18 Rx1n Receiver Inverted Data Output 19 GND Ground 1 20 GND Ground 1 21 Rx2n Receiver Inverted Data Output 22 Rx2p Receiver Rx2p Receiver Inverted Data Output 19 GND Ground Output Data Non-Inverted 23 GND4 Simbol Pin Jeneng/Deskripsi Cathetan 25 Rx4p Receiver Non-Inverted Data Output 26 GND Ground 1 27 ModPrsL Modul Present 28 Interrupt IntL 29 Vcc Tx +3.3V Power supply transmitter 30 Vcc1 +3.3V Power supply 31 LPMode GND Low Power Mode 32 33 Tx3p Transmitter Non-Kuwalik Input Data 34 Tx3n Transmitter Inverted Data Input 35 GND Ground 1 36 Tx1p Transmitter Non-Inverted Data Input 37 Tx1n Transmitter Inverted Data Input 38 GND Ground 1 Wigati: 1. Circuit ground wis internal diisolasi saka lemah sasis. Figure 2, Pin View kanggo SFP28 Tabel 6-Pin Fungsi Definitions Pin Symbol Jeneng / Katrangan Cathetan 1 VEET Modul Transmitter Ground 1 2 TX_FAULT Modul Transmitter Fault 2 3 TX_DISABLE Transmitter Pateni; Pateni output laser pemancar 3 4 SDA 2-Wire Serial Interface Data Line (MOD-DEF2) 5 SCL 2-Wire Serial Interface Clock (MOD-DEF1) 6 MOD_ABS Modul Absen, disambungake menyang VEET utawa VEER ing modul 2 7 RS0 Rate Pilih 0, opsional kontrol SFP+ modul receiver 4 8 RX_LOS Receiver Loss of Indikasi Sinyal (Ing FC ditetepake minangka Rx_LOS lan ing Ethernet ditetepake minangka NOT Deteksi Sinyal) 2 9 RS1 Rate Pilih 1, kontrol opsional SFP + modul pemancar 4 Pin Simbol Jeneng / Keterangan Cathetan 10 VEER Modul Receiver Ground 1 11 VEER Modul Receiver Ground 1 12 RD - Receiver Inverted Data Output 13 RD+ Receiver Non-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 TD+ TD+ TD+ Inverted Data Input Input TD19 Non-Inverted Data Input Input TD19 Transmitter Ground 1 Cathetan: Pin lemah modul diisolasi saka kasus modul. Pins bakal ditarik munggah karo 4.7K-10Kohms kanggo voltase antarane 3.14V lan 3.46V ing Papan inang. Pin ditarik nganti VCCT kanthi resistor 4.7K-10KΩ ing modul kasebut. Waca SFF-8472 Rev12.2 Tabel 10-2. Rekomendasi Circuit Gambar 3, Recommended Interface Circuit kanggo QSFP28 Figure 4, Recommended Host Board Power Supply Circuit kanggo SFP28 Figure 5, Recommended Interface Circuit kanggo SFP28 Monitoring Specification Figure 6, Memory Map for QSFP28 Figure SFP 8 Gambar 7, Memory Map for QSFP28 Magurp 7 mm. , Diagram Mekanik Tabel 7- Panjang Kabel Panjang Kabel L1（Unit: m） Toleransi（Unit: cm） ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 4.5＜L≤14.5＜L ≤14.5＞10.5 + 2%/-0 Tabel 8- Breakout Kabel Nominal Length Total Length L1 (Unit: m) Breakout Point Diukur saka SFPL2(Unit: m) 1 0.7 2 1.4 3 2 ≥5 3 Warnings Penanganan Pancegahan: Piranti iki rentan kanggo karusakan minangka akibat saka discharge elektrostatik (ESD). Lingkungan bebas statis dianjurake banget. Tindakake pedoman miturut prosedur ESD sing tepat. Safety Laser: Radiasi sing dipancarake dening piranti laser bisa mbebayani kanggo mata manungsa. Ngindhari sinar mata langsung utawa ora langsung.