Awọn ẹya ara ẹrọ ◊ Atilẹyin ohun elo 4x25GBASE-SR ◊ Ni ibamu si QSFP28 MSA SFF-8636 ati SFP28 MSA SFF-8431 ati SFF- 8472 Agbara kekere ◊ Awọn kebulu iwe-ẹri UL (iyan) ◊ Iṣowo iwọn otutu ṣiṣẹ: 0°C si +70 °C ◊ Awọn ohun elo ifaramọ RoHS ◊ 4x25Gbe-SR Aṣoju Max. Awọn akọsilẹ Unit Ipese Foliteji Vcc3 -0.5 - + 3.6 V Iwọn Ibi ipamọ Ts -10 - +70 °C Ṣiṣẹ Ọriniinitutu RH +5 - + 85 % 1 Akiyesi: 1 Ko si condensation Niyanju Awọn ipo iṣẹ Tabili 2- Niyanju awọn ipo iṣẹ paramita Aami Min. Aṣoju Max. Awọn akọsilẹ Unit Nṣiṣẹ Iwọn otutu TC 0 - +70 °C Agbara Ipese Agbara Vcc 3.14 3.3 3.47 V Agbara Pipa fun QSFP28 Pd - - 2.5 W Agbara Pipa fun SFP28 Pd - - 1.0 W 1 Bit Rate fun Lane BR 10.35 G. Fun ebute Itanna Abuda Tabili 3- Itanna abuda fun QSFP28 Paramita Aami Min. Iru. O pọju. Awọn akọsilẹ sipo ModSelL Module Yan VOL 0 - 0.8 V Module Unselect VOH 2.5 - VCC V LPMode Low Power Mode VIL 0 - 0.8 V Deede Isẹ VIH 2.5 - VCC + 0.3 V Tun L Tun VIL 0 - 0.8 VCC Deede V ModPrsL Isẹ deede VOL 0 - 0.4 V IntL Idilọwọ VOL 0 - 0.4 V Isẹ deede VoH 2.4 - VCC V Awọn ẹya ara ẹrọ Atagba Itanna Iyatọ Ọjọ Input Swing Vin, PP 200 - 1600 mV Imujade Iyatọ Imudaniloju Itanna ZIN 90 100 Iyipada Iyatọ Iyatọ Ijade Swing Vout 200 - 800 mVPP Bit Aṣiṣe Oṣuwọn BER E-12 1 Input differential Impedance ZD 90 100 110 Ω Akiyesi: 1 PRBS2 ^ 31-1 @ 25.78125Gbps Tabili 4- Awọn abuda Itanna fun Sbol Minfp28. Iru. O pọju. Sipo Awọn akọsilẹ Itanna Atagba Abuda Iyatọ Data Input Swing Vin, PP 200 - 1600 mVPP Input Iyatọ Impedance ZIN 90 100 110 Ω Tx_Fault Deede Isẹ VOL 0 - 0.8 V Atagba Aṣiṣe VOH 2.0_0 -Dii Tx_0. V Laser Mu VIH 2.0 - VCC+0.3 V Awọn olugba Olugba Itanna Awọn abuda Iyatọ Ọjọ Abajade Vout 400 - 800 mV Oṣuwọn Aṣiṣe Aṣiṣe BER - - E-12 - Imudaniloju Iyatọ Iyatọ ZD 90 100 110 Ω Rx_VOLS deede VH Rx_LOS 2.0 - VCC V Pin akanṣe olusin 1, Wiwo Pin fun QSFP28 Tabili 5- Awọn itumọ iṣẹ Pin fun QSFP28 Pin Aami Orukọ/Awọn akọsilẹ Apejuwe 1 GND Ilẹ 1 2 Tx2n Atagba Inverted Data Input 3 Tx2p Atagba Non-Inverted Data Input 4 GND GND GND Tx4n Transmitter Inverted Data Input 6 Tx4p Transmitter Non-Inverted Data Input 7 GND Ground 1 8 ModSelL Module Yan 9 ResetL Module Tunto 10 Vcc Rx +3.3V Olugba Ipese Agbara 11 SCL 2-waya ni wiwo tẹlentẹle aago 12 SDA 2-waya serial wiwo data Ground1 Ground13p Olugba Ti kii ṣe Iyipada Data Ijade 15 Rx3n Olugba Iyipada Idapada 16 GND Ilẹ 1 17 Rx1p Olugba Ti kii ṣe Iyipada Idawọle Olugba Rx2p Ti kii ṣe Iyipada Data Ijade 23 GND Ilẹ 1 24 Rx4n Olugba Iyipada Idawọle Data Pipin Aami Orukọ/Awọn akọsilẹ Apejuwe 25 Rx4p Olugba Ti kii ṣe Iyipada Data 26 GND Ilẹ 1 27 ModPrsL Module Interrupt28T9T + 3.3V Atagba Ipese Agbara 30 Vcc1 + 3.3V Ipese Agbara 31 LMode Ipo Agbara Kekere 32 GND Ilẹ 1 33 Tx3p Atagba Ti kii ṣe Inverted Data Inverted Atagba Inverted Data Input 38 GND Ilẹ 1 Akiyesi: 1. Circuit ilẹ ti wa ni ti abẹnu ya sọtọ lati ẹnjini ilẹ. Olusin 2, Pin Wiwo fun SFP28 Tabili 6-Pin Awọn iṣẹ Awọn asọye Pin Aami Orukọ / Awọn akọsilẹ Apejuwe 1 VEET Module Transmitter Ilẹ 1 2 TX_FAULT Module Transmitter Fault 2 3 TX_DISABLE Transmitter Disable; Pa atagba lesa o wu 3 4 SDA 2-Wire Serial Interface Data Line (MOD-DEF2) 5 SCL 2-Wire Serial Interface Aago (MOD-DEF1) 6 MOD_ABS Module Aisi, ti sopọ si VEET tabi VEER ninu module 2 7 RS0 Oṣuwọn Yan 0, iyan idari SFP + module olugba 4 8 RX_LOS olugba Isonu ti Itọkasi Ifihan (Ninu FC ti a yàn gẹgẹbi Rx_LOS ati ni Ethernet ti a yàn gẹgẹbi NOT Signal Detect) 2 9 RS1 Rate Select 1, optionally controls SFP+ module transmitter 4 Pin Symbol Name/Apejuwe Awọn akọsilẹ 10 VEER Module Olugba Ilẹ 1 11 VEER Module Ground 1 Ground. 12 RD- Iyipada data Olugba Olugba 13 RD+ Ti kii ṣe Iyipada Data Ijade 14 VEER Module Olugba Ilẹ 1 15 VCCR Module Olugba 3.3 V Ipese 16 VCCT Module Atagba 3.3 V Ipese 17 VEET Module +In 17 VEET Module Transmitter Ground 1 18 Invert18 Atagba Inverted Data Input 20 VEET Module Atagba Ilẹ 1 Akiyesi: Awọn pinni ilẹ module ti ya sọtọ lati awọn module irú. Awọn pinni yoo fa soke pẹlu 4.7K-10Kohms si foliteji laarin 3.14V ati 3.46V lori igbimọ ogun. PIN ti wa ni fa soke si VCCT pẹlu kan 4.7K-10KΩ resistor ninu module. Wo SFF-8472 Rev12.2 Table 10-2. Niyanju Circuit olusin 3, Niyanju Interface Circuit fun QSFP28 olusin 4, Niyanju Gbalejo Board Power Ipese Circuit fun SFP28 olusin 5, Niyanju Interface Circuit fun SFP28 Monitoring Specification Figure 6, Memory Map fun QSFP28 olusin 7, Memory Map fun SFP28 Mechanical Unit mm Figure 8 , Mechanical Aworan Tabili 7- Cable Ipari Cable Ipari L1 (Ẹyọ: m) Alafarada (Ẹyọ: cm) ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 4.5＜L≤14.5 +30/-0 ＞14.5 +2%/-0 Table 8- Breakout Cable Nominal Gigun Lapapọ Ipari L1 (Unit: m) Breakout Point Ti a Ṣewọn lati SFPL2 (Unit: m) 1 0.7 2 1.4 3 2 ≥5 3 Awọn iṣọra Mimu Awọn Ikilọ: Ẹrọ yii ni ifaragba si ibajẹ nitori abajade isunjade elekitirotiki (ESD). Ayika ọfẹ aimi jẹ iṣeduro gaan. Tẹle awọn itọnisọna ni ibamu si awọn ilana ESD to dara. Aabo lesa: Ìtọjú ti njade nipasẹ awọn ẹrọ laser le lewu si oju eniyan. Yago fun ifihan oju si itankalẹ taara tabi aiṣe-taara.