Nā hiʻohiʻona ◊ Kākoʻo i ka noi 4x25GBASE-SR ◊ Hoʻopili i ka QSFP28 MSA SFF-8636 a me SFP28 MSA SFF-8431 a me SFF- 8472 ◊ Ka nui o ka nui a hiki i ka 25.78125Gbps i kēlā me kēia ala ◊ Ka mamao o ka lawe ʻana a hiki i ka 50m ◊ Haʻahaʻa ◊ + 3.3. hoʻohana mana ◊ UL palapala hōʻoia (koho) ◊ Manawa hana Kalepa: 0 ° C i +70 °C ◊ RoHS compliant Applications ◊ 4x25Gbe-SR ◊ Other optical links Specification: Absolute Maximum Ratings Table1- Absolute Maximum Ratings Parameter Symbol Min. Max maʻamau. Unit Notes Voltage Voltage Vcc3 -0.5 - +3.6 V Ka Mahana Waihona Ts -10 - +70 °C Haʻahaʻa Hana RH +5 - +85 % 1 Nānā: 1 ʻAʻohe condensation Nā Kūlana Hana Manaʻo Papa 2- Manaʻo ʻia nā Kūlana hana Parameter Symbol Min. Max maʻamau. Nā Manaʻo Unite Manawa Hana TC 0 - +70 °C Voltage Mea Mana Vcc 3.14 3.3 3.47 V Hoʻokuʻu Mana no QSFP28 Pd - - 2.5 W Hoʻokuʻu Mana no SFP28 Pd - - 1.0 W 1 Bit Rate ma kēlā me kēia Alanui BR 10.3185 25.3125 25.3125. Ma ka pahu uila Nā Kiʻi Paʻi 3- Nā ʻano uila no QSFP28 Parameter Symbol Min. ʻAno. Max. Units Notes ModSelL Module E koho VOL 0 - 0.8 V Module Wehe i ke koho VOH 2.5 - VCC V LPMode Low Power Mode VIL 0 - 0.8 V Hana ma'amau VIH 2.5 - VCC+0.3 V ResetL Reset VIL 0 - 0.8 V Hana ma'amau VIH 2.5 - VCC+0.3 V ModPrsL Hana maʻamau VOL 0 - 0.4 V IntL Interrupt VOL 0 - 0.4 V Hana maʻamau VoH 2.4 - VCC V Nā ʻano mea hoʻolele uila ʻokoʻa Ka lā hoʻokomo Swing Vin,PP 200 - 1600 mV Huakaʻi ʻokoʻa Impedance ZIN 90 100 110 Ω ʻO ka mea lawe uila 200 VPP Output ʻIkepili ʻokoʻa 200 VPP Output - Rate BER E-12 1 Input Differential Impedance ZD 90 100 110 Ω Note: 1 PRBS2^31-1@25.78125Gbps Papa 4- Nā ʻano uila no SFP28 Parameter Symbol Min. ʻAno. Max. Units Notes Uila Mea hoʻouna 'Ikepili 'Ikepili 'oko'a Input Swing Vin,PP 200 - 1600 mVPP Input Differential Impedance ZIN 90 100 110 Ω Tx_Fault Hana ma'amau VOL 0 - 0.8 V Transmitter Fault VOH 2.0 - VCC V Tx_DisH Hana ma'amau V0_DisH. 2.0 - VCC+0.3 V Nā ʻano o ka loaʻa uila ʻokoʻa ka lā hoʻopuka Vout 400 - 800 mV Bit Error Rate BER - - E-12 - Output Differential Impedance ZD 90 100 110 Ω Rx_LOS Hana maʻamau VOL 0 - 0.8 VCC Lose hōʻailona VOL 0 - 0.8 VCC Lose. Hoʻonohonoho Pin Kiʻi 1, Pin Nānā no QSFP28 Papa 5- Nā wehewehe hana Pin no QSFP28 Pin Symbol Name/Description Notes 1 GND Ground 1 2 Tx2n Transmitter Inverted Data Input 3 Tx2p Transmitter Non-Inverted Data Input 4 GND Ground 1 5 Tx4n Transmitter Inverted Non-Input Data Input 6 Hoʻokomo ʻikepili Huli 7 GND Ground 1 8 ModSelL Module E koho 9 ResetL Module Reset 10 Vcc Rx +3.3V Mana Loaʻa 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 Receiver Huna 'Ikepili 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 Inverted Data Output 19 GND Ground 1 20 GND Ground. Pin Symbol Name/Description Notes 25 Rx4p Receiver Non-Inverted Data Output 26 GND Ground 1 27 ModPrsL Module Present 28 IntL Interrupt 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-Inverted Hoʻokomo ʻikepili 34 Tx3n Transmitter Hoʻokomo ʻIkepili Huli 35 GND Ground 1 36 Tx1p Transmitter Non-Inverted ʻIkepili Hoʻokomo 37 Tx1n Transmitter Hoʻokomo ʻIkepili Huli 38 GND Ground 1 Nānā: 1. Hoʻokaʻawale ʻia ka ʻāina kaapuni mai ka lepo chassis. Kiʻi 2, Nānā Pin no SFP28 Papa 6-Pin Function Definitions Pin Symbol Name/Description Notes 1 VEET Module Transmitter Ground 1 2 TX_FAULT Module Transmitter Fault 2 3 TX_DISABLE Transmitter Disable; Hoʻopau i ka mea hoʻopuka laser transmitter 3 4 SDA 2-Wire Serial Interface Data Line (MOD-DEF2) 5 SCL 2-Wire Serial Interface Clock (MOD-DEF1) 6 MOD_ABS Module Absent, i hoʻopili ʻia me VEET a i ʻole VEER i ka module 2 7 RS0 Rate E koho i ka 0, e hoomalu i ka SFP+ module receiver 4 8 RX_LOS Receiver Nalo o Hōʻailona hōʻailona (Ma FC i koho ʻia ʻo Rx_LOS a ma Ethernet i koho ʻia ʻaʻole ʻike Hōʻailona) 2 9 RS1 Rate Koho 1, koho i ka SFP+ module transmitter 4 Pin Symbol Name/Description Notes 10 VEER Module Receiver Ground 1 11 VEER Module Receiver Ground 1 12 RD - Hoʻopuka ʻIkepili Huli ʻia ka Mea Loaʻa 13 RD+ Mea Loaʻa ʻIkepili ʻAʻole i hoʻohuli ʻia 14 VEER Module Mea Loaʻa Ground 1 15 VCCR Module Loaʻa 3.3 V Hoʻolako 16 VCCT Module Transmitter 3.3 V Hāʻawi 17 VEET Module Transmitter Ground 1 18 TD+ Transmitter Non-Inverted TD-Input 19 Transmitter Ground 1 Nānā: Ua hoʻokaʻawale ʻia nā pin ground module mai ka pahu module. E huki ʻia nā pine me ka 4.7K-10Kohms i ka volta ma waena o 3.14V a me 3.46V ma ka papa hoʻokipa. Huki ʻia ka pine a hiki i VCCT me kahi pale 4.7K-10KΩ i loko o ka module. E nana SFF-8472 Rev12.2 Papa 10-2. Manaʻo Kaapuni Figure 3, Manaʻo Kaapuni Interface no QSFP28 Figure 4, Manaʻo Host Board Mana Mana Mana no SFP28 Figure 5, Manaʻo Kaapuni Interface no SFP28 Nānā Hōʻike Hōʻike Hōʻike 6, Palapala Hoʻomanaʻo no QSFP28 Kiʻi SFP 8 Magurp 7 mm. , Papa Hana Mechanical 7- Length Uea Length Uea L1（Uni: m） Hoomanawanui（Uni: cm） ≤1.0 +5/-0 1.0＜L≤4.5 +15/-0 4.5＜L≤14.5＜L≤14.5 ＞14.5 ＞10.5 + 2%/-0 Papa 8- Breakout Uea Nominal Length Total Length L1 (Unit: m) Breakout Point Ana ʻia mai SFPL2(Unit: m) 1 0.7 2 1.4 3 2 ≥5 3 Nā ʻōlelo aʻo ʻana i ka mālama ʻana: Hiki i kēia hāmeʻa ke pōʻino ma muli o ka hoʻokuʻu ʻana o ka electrostatic (ESD). Paipai ʻia kahi kaiapuni kūʻokoʻa kūʻokoʻa. E hahai i nā alakaʻi e like me nā kaʻina hana ESD kūpono. Palekana Laser: ʻO ka hoʻoheheʻe ʻia e nā mea laser hiki ke pilikia i nā maka kanaka. Hōʻalo i ka ʻike ʻana o ka maka i ka radiation pololei a i ʻole.