Ngā Āhuatanga ◊ Tautokohia te tono 4x25GBASE-SR ◊ E tika ana ki te QSFP28 MSA SFF-8636 me te SFP28 MSA SFF-8431 me te SFF- 8472 ◊ Te maha o te tere ki te 25.78125Gbps mo ia ara ◊ Te tawhiti o te whakawhiti ki te 50m ◊ ◊ Te mana kotahi ◊ +3.3 kohi mana ◊ taura tohu UL (kōwhiringa) ◊ Temp te mahi Tauhokohoko: 0°C ki te +70 °C ◊ RoHS Compliant Applications ◊ 4x25Gbe-SR ◊ ◊ Ētahi atu hononga whatu Whakatakotoranga: Whakatauranga Morahi Tino Ripanga1- Whakatauranga Morahi Whakatauranga Tawhā Tohu Min. Max angamaheni. Ngaohiko Waeine Te Ngaohiko Vcc3 -0.5 - +3.6 V Te Pawera Rokiroki Ts -10 - +70 °C Te Maama Mahi RH +5 - +85 % 1 Tuhipoka: 1 Kore he whakapoatanga Nga Tikanga Whakahaere e taunakihia ana Ripanga 2- Nga Tikanga Whakahaere Tohu Tohu Min. Max angamaheni. Waeine Notes Te Waahi Mahi TC 0 - +70 °C Ngaohiko Whakawhiwhi Hiko Vcc 3.14 3.3 3.47 V Te Hiko Hiko mo ia QSFP28 Pd - - 2.5 W Te Hiko Hiko mo ia SFP28 Pd - - 1.0 W 1 Moka Moka mo ia Rarangi BR 10.3185 25.3125 25.18bps: Mo ia tauranga Hiko Ripanga Ahuatanga 3- Ahuatanga Hiko mo te QSFP28 Tohu Tawhā Min. Pato. Max. Waeine Notes ModSelL Kōwae Tīpakohia VOL 0 - 0.8 V Kōwae Wewetehia te VOH 2.5 - VCC V LPMode Iti Hiko Aratau VIL 0 - 0.8 V Mahi Pūnoa VIH 2.5 - VCC+0.3 V ResetL Tautuhi VIL 0 - 0.8 V Mahi Pūnoa VIH 2.5 - VCC+0.3 V ModPrsL Mahi Pūnoa VOL 0 - 0.4 V IntL Interrupt VOL 0 - 0.4 V Mahinga Tikanga VoH 2.4 - VCC V Hunga Whakawhiti Hiko Nga Ahuatanga Ra Rerekē Te Ra Tauru Whakauru Piu Vin,PP 200 - 1600 mV Putanga Rereketanga Impedance ZIN 90 100 110 Ω Hiko Receiver Receiver Hurorirori kau 00 VPP Putanga Raraunga Raraunga Rereketanga mV00 Putanga Raraunga Rereke Rererangi BER E-12 1 Whakauruhia te Impedance Differential ZD 90 100 110 Ω Tuhipoka: 1 PRBS2^31-1@25.78125Gbps Ripanga 4- Ahuatanga Hiko mo te SFP28 Tawhā Tohu Min. Pato. Max. Waeine Notes Hunga Whakawhiti Hiko Nga Ahuatanga Raraunga Raraunga Raraunga Rerekē Piu Vin,PP 200 - 1600 mVPP Whakauru Rereketanga Impedance ZIN 90 100 110 Ω Tx_Fault Mahi Putea VOL 0 - 0.8 V Kaituku Hapa VOH 2.0 - VCC V0 Tx_DisH Taea te Mahi VCC V Tx_DisH. 2.0 - VCC+0.3 V Hunga Kaiwhiwhi Hiko Te Ra Rerekē Putanga Putanga Vout 400 - 800 mV Reiti Hapa Moka BER - - E-12 - Putanga Rereketanga Impedance ZD 90 100 110 Ω Rx_LOS V Mahi Tikanga VOL 0 - 0.8 VCC Ngaro Waitohu. Whakaritenga Pin Figure 1, Pin Tirohanga mo te Ripanga QSFP28 5- Whakamaramatanga Mahi Pin mo te QSFP28 Tohu Pii Ingoa/Whakaahua Panui 1 GND Papa 1 2 Tx2n Kaituku Hurihia Raraunga Raraunga 3 Tx2p Kaituku Whakawhiti Kore-Kore Whakauru Raraunga 4 GND Papa 1 5 Tx4n Kaituku Hurihuri Raraunga Kore-Kore Whakawhiti 6 Tx4n Whakawhiti Whakawhiti Raraunga Kore Kore Whakawhiti 6 Whakauru Raraunga Hurihuri 7 GND Papa 1 8 ModSelL Kōwae Tīpakohia 9 ResetL Kōwae Tautuhi 10 Vcc Rx +3.3V Power Supply Receiver 11 SCL 2-waea karaka atanga rangatū 12 SDA 2-waea raraunga atanga rangatū 13 GND Papa 1 14 Rx3p Kaiwhiwhi Kore-Whakaarohia Raraunga Putanga Raraunga 15 Rx Whakahoki Raraunga Raraunga Whakahoki Putanga Raraunga 16 GND Papa 1 17 Rx1p Receiver Kore-Inverted Raraunga Putanga 18 Rx1n Receiver Inverted Raraunga Putanga 19 GND Ground 1 20 GND Ground 1 21 Rx2n Receiver Inverted Raraunga Putanga 22 Rx2p Receiver Receiver Inverted Raraunga Putanga 19 GND Ground 1 20 GND Ground 1 21 Rx2n Receiver Inverted Raraunga Putanga 22 Rx2p Receiver Receiver Receiver Inverted Raraunga Putanga 19 GND Ground 1 20 GND Ground 1 21 Rx2n Receiver Inverted Raraunga Putanga 22 Rx2p Receiver Receiver Receiver Inverted Raraunga Putanga 19 GND Raraunga Raraunga Putanga 23 GND4 Ingoa Tohu Pii/Whakaahua Panui 25 Rx4p Receiver Putanga Raraunga Kore Hurihurihia 26 GND Papa 1 27 ModPrsL Module Whakaatu 28 IntL Interrupt 29 Vcc Tx +3.3V Kaituku hiko 30 Vcc1 +3.3V Tuku hiko 31 LPMode GND Aratau Hiko Iti 32 33 Tx3p Kaiwhakawhiti Kore-Koaro Tāuru Raraunga 34 Tx3n Kaituku Huri Raraunga Inverted 35 GND Ground 1 36 Tx1p Transmitter Kore-Inverted Raraunga Whakauru 37 Tx1n Transmitter Inverted Raraunga Whakauru 38 GND Ground 1 Note: 1. Ko te papa taiawhio kei te wehe a roto mai i te papa tahuhu. Whakaatu 2, Tirohanga Pin mo SFP28 Ripanga 6-Pin Taumahi Whakamaramatanga Tohu Tohu Ingoa/Whakaahua Panui 1 VEET Module Transmitter Papa 1 2 TX_FAULT Module Transmitter Hapa 2 3 TX_DISABLE Kaituku Mono; Whakawetohia te whakaputanga laser kaiwhakawhiti 3 4 SDA 2-Waea Raina Raraunga Atanga Waea (MOD-DEF2) 5 SCL 2-Waea Karaka Atanga Rangatū (MOD-DEF1) 6 MOD_ABS Kōwae ngaro, hono ki te VEET, ki te VEER ranei i roto i te waahanga 2 7 RS0 Reiti Tīpakohia te 0, ka taea te whakahaere i te kaiwhiwhi kōwae SFP+ 4 8 RX_LOS Kaiwhiwhi Ngaronga o Tohu Tohu (I roto i te FC kua tohua hei Rx_LOS me te Itarangi kua tohua hei KORE Tohu Tohu) 2 9 RS1 Reiti Tīpakohia 1, ka taea te whakahaere i te kaiwhakawhiti kōwae SFP+ 4 Pin Tohu Ingoa/Whakaahua Panui 10 VEER Module Receiver Papa 1 11 VEER Module Receiver Papa 1 12 RD - Putanga Raraunga Hurihia e te Kaiwhiwhi 13 RD+ Putanga Raraunga Kore-Kore Hurihuri 14 VEER Module Receiver Ground 1 15 VCCR Module Receiver 3.3 V Tuku 16 VCCT Module Transmitter 3.3 V Tukuna 17 VEET Module Transmitter Papa 1 18 TD+ TD+ TD+ Whakawhiti TD Kore-Whakawhiti Raraunga Whakauru TD19 Whakawhiti Raraunga Kore Inverted TD 19 Te Whakawhiti Raraunga Kore-Whakawhitinga TD19 Te Papa Whakawhiti 1 Tuhipoka: Ko nga titi whenua o te kōwae kua wehea mai i te pouaka kōwae. Ka toia nga titi ki te 4.7K-10Kohms ki te ngaohiko i waenga i te 3.14V me te 3.46V i runga i te papa manaaki. Ka toia te titi ki te VCCT me te parenga 4.7K-10KΩ i roto i te kōwae. Tirohia te SFF-8472 Rev12.2 Ripanga 10-2. Arahiko Manako Whakaaturanga 3, Arahiko Atanga Manakohia mo QSFP28 Whakaahua 4, Poari Kaihautū Manaaki Whakarato Hiko Hiko mo te SFP28 Whakaahua 5, Arahiko Atanga Manakohia mo SFP28 Whakaaturanga Aroturuki Whakaaturanga 6, Mahere Mahara mo te QSFP28 Whakaaturanga Mechanp 7 mm, Mahere Mahere Mahere Mahere 7 mm. , Hoahoa Hangarau Ripanga 7- Roa Waea Roa Roa L1（Waeine: m） Whakaae（Wae: cm） ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 4.5＜L≤14.5＞14.5＞14.5＞ +2%/-0 Ripanga 8- Breakout Roa Tauwaea Te Roa Tapeke L1 (Waeine: m) Ira Wehenga I Inehia mai i te SFPL2(Waeine: m) 1 0.7 2 1.4 3 2 ≥5 3 Whakatupato Whakatupato Whakatupato: Ko tenei taputapu he whakaraerae ki te kino na te tukunga hiko (ESD). Ka tino taunakitia he taiao kore utu. Whaia nga aratohu e ai ki nga tikanga ESD tika. Haumaru Taiaho: Ko te iraruke e tukuna ana e nga taputapu laser he kino ki nga kanohi tangata. A ape i nga kanohi e pa ana ki te rauropi tika, arataki ranei.