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100G PSM4 2km

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100G Base QSFP+ PSM4 Optical Transceiver Module

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5. All contents are Copyright © 1996 - 201 8 Wave S plitter Technologies, Inc. All rights r eserved. Preliminary and Proprietary www.wavesplitter.com Page 5 of 7 Document Number: 95 - 0090 - V1. 5 100 - Gbps QSFP+ PSM4 Optical Transceiver Module WST - QS28 - P4 - x O utline D imensions Unit: mm Attention: To minimize MPO connection induced reflections, an MPO receptacle with 8 - degree angled end - face is utilized for this product. A female MPO connector with 8 - degree end - face should be used with this product as il lustrated in below.

7. Page 7 of 7 Document Number: 95 - 0090 - V1. 5 100 - Gbps QSFP+ PSM4 Optical Transceiver Module WST - QS28 - P4 - x Modification History Revision Date Description Originator Review Approved V 1.0 9 - Nov - 20 1 8 New Issue Ivy Chen Wayne Liao Wayne Liao All specification data are accurate on the date of publication for product compariso ns and ordering information. Wavesplitter Technologies, Inc. reserves the right to change specifications without notice. U.S. Branch 2080 Rancho Higuera Ct. Fremont, CA 9 45 3 9, USA Tel: 510 - 651 - 7800 Fax: 510 - 651 - 7822 Taipei Headquarters 16F - 5, No. 75 , Sec. 1, Xintai 5th Rd., Xizhi Dist. , New Taipei C ity 221 01 , Taiwan Tel: +886 - 2 - 2 698 - 7208 Fax: +886 - 2 - 2 698 - 7210 ShenZhen Branch 610#, 6F, No.204 Building, 2nd Industrial zone Nanyou, Nanshan district, Shenzhen, Guangdong China 518054 Tel: +86 - 755 - 86265 980 Fax: +86 - 755 - 26642741

1. Data Sheet All contents a re Copyright © 1996 – 20 1 8 W ave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 1 of 7 100 - Gbps QSFP+ PSM4 Optical Transceiver Module P/N: WST - QS28 - P4 - x Absolute Maximum Ratings Parameter Symbol Conditions Min. Max. Unit Storage Temperature T Storage - 40 +85 °C Relative Humidity RH 0 +85 % Supply Voltage VCC 0 3.6 V Power Consumption 3.5 W Supply Current Icc 1200 mA Features: ◼ Compliant with 100G PSM4 Specification 2.0 ◼ Compliant with 100G Ethernet IEEE 802.3bm ◼ Compliant to SFF - 8665 (QSFP28 Solution) Revision 1.8 ◼ MPO optical connector (IEC61754 - 7 - 1) ◼ Operating case temperature (0°C~70°C) ◼ Transmission length up to 2 km via single mode fiber Applications: ◼ Datacenter and enterprise networking ◼ Switch router and HBA’s ◼ InfiniBand EDR, FDR and QDR ◼ HPC interconnections

6. All contents are Copyright © 1996 - 201 8 Wave S plitter Technologies, Inc. All rights r eserved. Preliminary and Proprietary www.wavesplitter.com Page 6 of 7 Document Number: 95 - 0090 - V1. 5 100 - Gbps QSFP+ PSM4 Optical Transceiver Module WST - QS28 - P4 - x ESD This transceiver is specified as ESD threshold 1 kV for SFI pins and 2 kV for all others electrical input pins, tested per MIL - STD - 883, Method 3015.4/ JESD22 - A114 - A (HBM). However, normal ESD precautions are still required dur ing the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and handled only in an ESD protected environment. Laser Safety This is a Class 1 Laser Product according to IEC 60825 - 1:1993: +A1:1997+A2:2001. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (June 24, 2007) Ordering Information Part No Specification Package Data rate per Lane Laser Optical Power (OMA) PD Max. Stress Receive Sensitivity Temp Reach Other Application code WST - Q S 28 - P 4 - C Q SFP 28 25.78125 Gbps each Lane 1310nm DFB - 9.4 dBm ~ +2 d Bm Each Lane PIN - 11.35 d Bm of Each Lane in OMA for BER 5x10 - 5 0~70 o C 2km DDM RoHS InfiniBand EDR, FDR and QD R

3. All contents are Copyright © 1996 - 201 8 Wave S plitter Technologies, Inc. All rights r eserved. Preliminary and Proprietary www.wavesplitter.com Page 3 of 7 Document Number: 95 - 0090 - V1. 5 100 - Gbps QSFP+ PSM4 Optical Transceiver Module WST - QS28 - P4 - x E lectrical C haracteristics (T=25°C, unless noted) Parameter Symbol Min. Typical Max Unit Notes Transmitter Differential Input Impedance 90 100 110 Ω Differential Input Swing 200 900 mV TP1/TP1a Interface Co mpliant to IEEE 802.3ba XLPPI Receiver Differential Output Impedance 90 100 110 Ω Differential Output Swing 200 900 mV TP4 Interface Compliant to IEEE 802.3ba XLPPI Digital Diagnostic Monitor Functions Parameter Symbol Min. Max Unit Notes Tempe rature monitor absolute error DMI_Temp - 3 3 °C Over operating temp Supply voltage monitor absolute error DMI_VCC - 0.15 0.15 V Full operating range Channel RX power monitor absolute error DMI_RX_Ch - 3 3 dB Ch1 ~ Ch4 Channel Bias current monitor DMI_Ibias _Ch - 10% 10% mA Ch1 ~ Ch4 Channel TX power monitor absolute error DMI_TX_Ch - 3 3 dB Ch1 ~ Ch4 P in A ssignment

2. All contents are Copyright © 1996 - 201 8 Wave S plitter Technologies, Inc. All rights r eserved. Preliminary and Proprietary www.wavesplitter.com Page 2 of 7 Document Number: 95 - 0090 - V1. 5 100 - Gbps QSFP+ PSM4 Optical Transceiver Module WST - QS28 - P4 - x R ecommend ed O perating Conditions (T=25°C, unless noted) Parameter Symbol Conditions Min. Typ. Max. Unit Case Temperature TC 0 70 ° C Power Supply Voltage VCC 3.15 3.3 3.45 V Signaling Rate, Each Lane 25.78125 Gbps Data Speed Tolerance ΔDR - 100 --- +100 ppm Power Supply Noise --- --- 50 mVpp Supply Noise Rejection --- --- 100 mV Operating Distance D --- --- 2 km T ransmitter C haracteristics (T=25°C, unless noted) Parameter Symbol Conditions Min. Typ. Max. Unit Operating Wavel ength, each lane λ T c = 0~70 °C 1295 1325 nm RMS Spectral Width λ rms 1.5 nm Average launch power, each lane P AVG - 9.4 +2 dBm Optical Modulation Amplitude (OMA), each lane P OMA - 5.15 +2.2 dBm Difference in launch power between any two lanes (OMA ) Ptx, diff 5 dB Average launch power of OFF transmitter, each lane Poff - 30 dBm Extinction ratio ER 3.5 dB Optical return loss tolerance TOL 20 dB Transmitter Eye Mask Margin EMM 5 % R eceiver C haracteristics (T=25°C, unless noted) Par ameter Symbol Conditions Min. Typ. Max. Unit Center Wavelength λ C T c = 0~70 °C 1295 1325 nm Damage threshold TH d +3 dBm Average Power at Receiver Input, Each Lane - 12.66 +2 dBm Non - Stressed Receiver Sensitivity (OMA), Each Lane S OMA BER= 5x10 - 5 - 11.35 dBm LOS Assert LOS A - 30 dBm LOS De - Assert LOS D - 15 dBm LOS Hysteresis LOS H 0.5 6 dB

4. All contents are Copyright © 1996 - 201 8 Wave S plitter Technologies, Inc. All rights r eserved. Preliminary and Proprietary www.wavesplitter.com Page 4 of 7 Document Number: 95 - 0090 - V1. 5 100 - Gbps QSFP+ PSM4 Optical Transceiver Module WST - QS28 - P4 - x Pin Description PIN Logic Symbol Name/Description Note 1 GND Ground 2 CML - I Tx2n Transmitter Inverted Data Input 3 CML - I Tx2p Transmi tter Non - Inverted Data output 4 GND Ground 5 CML - I Tx4n Transmitter Inverted Data Input 6 CML - I Tx4p Transmitter Non - Inverted Data output 7 GND Ground 8 LVTTL - I ModSelL Module Select 9 LVTTL - I ResetL Module Reset 10 VccRx ﹢ 3. 3V P o w er S up p l y R e c ei v e r 11 LVCMOS - I/O SCL 2 - Wire Serial Interface Clock 12 LVCMOS - I/O SDA 2 - Wire Serial Interface Data 13 GND Ground 14 CML - O Rx3p Receiver Non - Inverted Data Output 15 CML - O Rx3n Receiver Inverted Data Output 16 GND Ground 17 CML - O Rx1p Receiver Non - Inverted Data Output 18 CML - O Rx1n Receiver Inverted Data Output 19 GND Ground 20 GND Ground 21 CML - O Rx2n Receiver Inverted Data Output 22 CML - O Rx2p Receiver Non - Inverted Data Output 23 GND Ground 24 CML - O Rx4n Receiver Inve rted Data Output 25 CML - O Rx4p Receiver Non - Inverted Data Output 26 GND Ground 27 LVTTL - O ModPrsL Module Present 28 LVTTL - O IntL Interrupt 29 VccTx +3.3 V Power Supply transmitter 30 Vcc1 +3.3 V Power Supply 31 LVTTL - I LPMode Low Power Mod e 32 GND Ground 33 CML - I Tx3p Transmitter Non - Inverted Data Input 34 CML - I Tx3n Transmitter Inverted Data Output 35 GND Ground 36 CML - I Tx1p Transmitter Non - Inverted Data Input 37 CML - I Tx1n Transmitter Inverted Data Output 38 GND Ground

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