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40G LR4 2km

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40G Base QSFP+ LR4 Transceiver, 0~70C 2km

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5. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 5 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Digital Diagnostic Memory Map

12. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 12 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C T ypical Application Circuit Figure 4 : Exampl e QSFP+ Host Board Schematic for Optical Modules

13. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 13 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Mechanical Comply to SFF - 843 6 rev. 4 . 2 , for QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER , tab color in blue Figure 5 : Drawing of QSFP+ Module

11. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 11 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Application in System Figure 2 : Application Reference Model Figure 3 : Recommended Host Board Power Supply Filtering

8. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 8 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Low Speed Electrical Specification Pin Assignment and Pin Description Figure 2: MSA compliant Connector

4. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 4 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Electrical Characteristics The following electrical characteristics are defined over the Recommended Operating temperature and supply voltage unless otherwise s pecified. Parameter Symbol Min. Typical Max Unit Notes Supply Voltage Vccl, VccTx , VccRx - 0.5 - 3.6 V Data Rate , each Lane - 10.3125 11.2 Gbps

10. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 10 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C 35 GND Ground 1 36 CML - I Tx1p Transmitter Non - Inverted Data Input 37 CML - I Tx1n Transmitter Inverted Data Output 38 GND Ground 1 Notes: 1. GND is the symbol for signal and supply (power) common for QSFP module s. All are common within the QSFP module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal common ground plane. 2. VccRx, Vcc1 and VccTx are the receiving and transmission power su ppliers and shall be applied concurrently. Recommended host board power supply filtering is shown below. VccRx, Vcc1 and VccTx may be internally connected within the QSFP transceiver module in any combination. The connector pins are each rated for a maximu m current of 500mA.

1. Data Sheet All contents are Copyright © 1996 - 20 1 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 1 of 14 4 0GBase Q SFP+ LR4 2km Optical T ransceiver WST - Q SFP+ LR4 L - C Transceiver Block Diagram Figure 1 : 40Gb/s QSFP LR4 Transceiver Block Diagram PIN Array (4ch) Dual - LC Connec tor DFB Driver Array (4ch) 4 - wavelength DFB laser Array (4ch) Optical MUX TIA Array (4ch) Optical DeMUX TX3 TX2 TX1 TX0 RX3 RX2 RX1 RX0 Single Mode Fiber Features:  Compliant with 40G Etherne t IEEE 802.3ae 40GBASE - L R4 up to 2 km  QSFP+ MSA compliant  Compliant with QDR/DDR Infiniband data rates  Up to 11.2Gbps data rate per wavelength  4 CWDM lanes MUX/DEMUX design  Up to 2 km transmission  Operating case temperature: 0~70C  Maximum 3.5W op eration power  RoHS compliant  RoHS 6 Compliant Applications:  40GBASE - L R4 Ethernet links  Infiniband QDR and DDR interconnects  Client - side 40G Telecom connections

3. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 3 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Notes : 1. The receiver shall be able to tole rate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power. 2. Vertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver. Transmitter R eflectance RT - 12 dB Transmitter Eye Ma sk Definition {X1, X2, X3, Y1, Y2, Y3} { 0.25,0.4,0.45,0.25,0.28,0.4 } Average Launch Power OFF Transmitter, each Lane Poff - 30 dBm Receiver Damage Threshold THd 3.3 dBm 1 Average Power at Receiver Input, each Lane - 1 3 .7 2.3 dBm Receiver Ref lectance RR - - - 26 dB Receiver Power (OMA), each Lane - - 3.5 dBm Stressed Receiver Sensitivity in OMA, each Lane - - - 9.9 dBm Receiver Sensitivity , each Lane SR - - - 10.5 dBm Difference in R eceive P ower between any two L anes (OMA) 7.5 dB R eceive E lectrical 3 dB upper C utoff F requency, each L ane 12.3 GHz Conditions of Stress Receiver Sensitivity Test2 Vertical Eye Closure Penalty, each Lane 1.6 dB Stressed Eye Jitter, each Lane 0.3 UI

14. Page 14 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Ordering Information Part No Specification Package Data rate per Lane Laser Optical Power Detector Max. Receive Sensitivity Temp Reach Other Application code WST - Q SFP+ LR4L - C Q SFP+ 10.3 Gbps 1270nm 1290nm 1310nm 1330 n m CWDM DFB - 7.0 dBm ~ +2.3 dBm PIN - 11.0 d Bm i n OMA 0~70 o C 2km for SMF DDM RoHS 4 0GBASE - L R 4 Modif ication History Revision Date Description Originator Review Approved V 2.0 4 - Feb - 20 1 4 Change to 2km version Min Liu Wayne Liao Wayne Liao V 2.1 2 - May - 20 1 4 Modify sensitivity(OMA) spec to - 11.0dBm Min Liu Wayne Liao Wayne Liao V2.2 05 - Dec - 2016 EEPROM updat e Ivy Chen Wayne Liao Wayne Liao All specification data are accurate on the date of pu blication for product comparisons 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 Ta ipei 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 - 86265980 Fax: +86 - 755 - 26642741

7. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 7 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C 1 47 1 Device technology 0 0 148 - 163 16 Vendor name 57 41 56 45 53 50 4C 49 54 54 45 52 20 20 20 20 WAVESPLITTER 164 1 Extended Module Cod es 0 4 165 - 167 3 Vendor OUI 00 0F 0E 168 - 183 16 Vendor Part Number 57 53 54 2D 51 53 46 50 2B 4C 52 34 4C 2D 43 20 WST - Q SFP+L R 4L - C 184 - 185 2 Vendor rev 30 3 2 0 2 186 - 187 2 Wavelength 42 68 188 - 189 2 Wavelength Tolerance 07 D0 190 1 Max case temp 46 70C 191 1 Check code for [128 - 190] X x 192 - 195 4 Options 00 00 00 12 196 - 211 16 Vendor SN CC CM YY MM ID SN SN SN SN 20 20 20 20 20 20 20 CC: C ountry code CM: CM code YY: Year MM: Month ID: Product ID SN: Sequence 212 - 219 8 Dat e code YY YY MM MM DD D D LL LL YY: Year MM: Month DD: Day of month LL: Lot number 220 1 DOM type 08 F or a verage power 221 1 Enhanced Options 00 222 1 Reserved 0 0 22 3 - 25 5 33 Vendor specified X x

2. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 2 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C Absolute Maximum Ratings It ha s to be noted that the operation in excess of any individual absolute maximum ratings might cause permanent damage to this module. Parameter Symbol Min Max Unit Note Storage Temperature Tst - 2 0 85 degC Relative Humidity (non - condensation) RH 0 85 % Operating Case Temperature Topc 0 70 degC Operating Range 0.002 10 km Supply Voltage VCC - 0.5 3.6 V Optical Characteristics Paramete r Symbol Min. Typical Max Unit Notes Wavelength Assignment L0 1264.5 1271 1277.5 nm L1 1284.5 1291 1297.5 nm L2 1304.5 1311 1317.5 n m L3 1324.5 1331 1337.5 nm Transmitter Side - mode S uppression R atio SMSR 30 - - dB Total A verage L aunch P ower P T - - 8.3 dBm Average L aunch P ower, each L ane - 8.2 - 2.3 dBm Optical Modulation Amplitude, each Lane OMA - 4 - +3.5 dBm Difference in L aunch P ower between any two L anes (OMA) - - 6.5 dB Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane - 4.8 - dBm TDP, each Lane TDP 2.3 dB Extinction Ratio ER 3 .5 - - dB Relative Intensity Noise Rin - - - 128 dB/Hz 12dB reflection Optical Return Loss Tolerance - - 20 dB

6. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 6 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C EEPROM Serial ID Memory Contents Accessing Serial ID Memory uses the 2 wire address 1010000X (A0H). Memory Contents of Serial ID are shown in Table as below. Serial ID Memory Contents Data Address Size (Bytes) Name of Field Contents(Hex) Description BASE ID FIELDS 0 1 Identifier 0 D Q SFP 1 - 2 2 Status Indicator 0 0 00 3 - 21 19 Interrupt Flags A ll 00 2 2 - 3 3 12 Module Monitors A ll 00 3 4 - 81 48 Channel Monitors A ll 00 82 - 8 5 4 Reserved 00 00 00 00 8 6 - 97 12 Control All 00 98 - 99 2 Reserved 00 00 10 0 - 10 6 7 Module & Channel Masks 00 00 00 00 00 00 00 107 - 118 12 Reserved All 00 119 - 122 4 Password Change Entry 00 00 00 00 123 - 126 4 Password Entry 00 00 00 00 127 1 Page Select 00 128 1 Identifi er 0 D Q SFP + 1 29 1 Ext. Identifier 00 130 1 Connector 23 131 - 138 8 Specification Compliance 04 00 00 00 40 40 04 00 4 0G LR4 over 2 km 1 39 1 Encoding 0 5 64B/66B 1 40 1 BR - Normal 67 10.3Gbps per lane 1 41 1 Extended Rate Select 00 unspecified 14 2 1 Leng th SM - km 0 0 1 43 1 Length, OM3 - 2m 00 1 44 1 Length, OM2 - 1m 00 1 45 1 Length, OM1 - 1m 00 1 46 1 Length, Cu - 1m 0 A

9. All contents are Copyright © 1996 - 201 7 Wave S plitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 9 of 14 Document Number: 95 - 0070 - V2.2 4 0GBase Q SFP+ L R 4 2km Optical Transceivers WST - Q SFP+ LR4L - C PIN Logic Symbol Name/Description Not e 1 GND Ground 1 2 CML - I Tx2n Transmitter Inverted Data Input 3 CML - I Tx2p Transmitter Non - Inverted Data output 4 GND Ground 1 5 CML - I Tx4n Transmitter Inverted Data Input 6 CML - I Tx4p Transmitter Non - Inverted Data output 7 GND Ground 1 8 LVTLL - I ModSelL Module Select 9 LVTLL - I ResetL Module Rese t 10 VccRx ﹢ 3.3V Power Supply Receiver 2 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 - Inver ted Data Output 15 CML - O Rx3n Receiver Inverted Data Output 16 GND Ground 1 17 CML - O Rx1p Receiver Non - Inverted Data Output 18 CML - O Rx1n Receiver Inverted Data Output 19 GND Ground 1 20 GND Ground 1 21 CML - O Rx2n Receiver Inverted Data Output 22 CML - O Rx2p Receiver Non - Inverted Data Output 23 GND Ground 1 24 CML - O Rx4n Receiver Inverted Data Output 1 25 CML - O Rx4p Receiver Non - Inverted Data Output 26 GND Ground 1 27 LVTTL - O ModPrsL Module Prese nt 28 LVTTL - O IntL Interrupt 29 VccTx +3.3 V Power Supply transmitter 2 30 Vcc1 +3.3 V Power Supply 2 31 LVTTL - I LPMode Low Power Mode 32 GND Ground 1 33 CML - I Tx3p Transmitter Non - Inverted Data Input 34 CML - I Tx3n Transm itter Inverted Data Output

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