28 AOC. Version 01. Device type. Model Name. Voltage. Interface. Category LOS. Page 1 CML/CML. With DDMl 3.3V LVTTL VCSEL/PIN.

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1 Specification Quad Small Form-factor Pluggablee 8 (QSFP8) Product T Q S Q 4 H 8 X C A x x Distance Model Name oltage Category Device type Interface LOS Temperature TQS-Q4H8-XCAxx. With DDMl CSEL/PIN CML/CML LTTL 0 C~+70 C Page

2 Description Formerica OptoElectronics Inc. Quad Small Form-Factor Pluggable Pluss 8 (QSFP8) active optical cables (AOC) are high- performance active optical cable c with bi-directional signal transmission and aggregate -Gbps bandwidth for both InfiniBandd EDR and Ethernett G-SR4 applications. Compared to conventional copper cables, longer and lighter optical cables enable the ease of complicated data-center cablings. The AOCs utilize multimode fiber with 850-nm CSELs and PIN PDs. The certificated cables have superior signal integrity and bit-error-rate, which enabless reliable operation performancp ce. Features Compliant with GBASE-SR4 andd CAUI-4 specificationn per IEEE E 80.bm. Compliant to SFF-8665 (QSFP8 Solution) Revision.8 Supports Gbps data rate links of up to 70m/m viaa OM/OM4, respectively. Low power consumption of max.5w Hot pluggable electrical interface Using standardd /8 lane optical fiber with -mm round cable. c 0 to 70 C case temperature operating range RoHS-6 Compliant (lead-free) Applications Ethernet for GBASE-SR4 Infiniband EDR, FDR and QDR HPC Interconnects Proprietary Interconnections Page

3 Absolute Maximumm Rating Not necessarily applied together. Exceeding thesee values may cause Functional operation under these conditions is not implied. permanent damage. Parameter Min Maxx Unit Note Storage Temperature Power Supply oltage Data Input oltage- Single Ended -0.5 cc +0.5 Controll Input oltage Relative Humidity 5 85 % Notes:. Limited by the fiber cable jacket, not the active ends.. Non-condensing. Recommended Operating Conditions Parameter Min Typical Max Unit Note Case Operating Temperature Power Supply oltage Date Rate per Channel Gbps Bit Error Ratio 0 -, Controll Input oltage High cc+0. Controll Input oltage Low Two Wire Serial (TWS) Interface Clock Rate khz Differential Data Input / Output Load Ohms +/- 0% Standard Cable Lengths m Notes:. Bit-Error-Rage (BER)) is tested with PRBS - pattern.. G QSFP cable requires an electrical connector compliant with SFF-866 or SFF-867 which is used on the host board inn order to guaranteee its electrical interface specification.. Per GBASE-SR4 Standard, cable length support up to 70m / m via OM / OM4, respectively. Different cable length within this range upon customization. Page

4 Electrical Characteristics Parameter Symbol Min Typ. Maxx Unit Note Transceiver Electrical Characteristics TRx Power Consumption.88.5 W TRx Power-on Initialization Time ms CAUI-4 Module Electrical Input Characteristics (TP) Single Ended Input oltage Tolerance Differential pk-pk input voltage tolerance m Differential Input Return Loss Differential Common-Mode Input Return Losss Sdd Scc d c See Eq. See Eq. db db DC common mode voltage m Notes: log 8 db (Eq.) 9 where f is the frequency in GHz RLd is the CAUI-4 Chip-to-module input differential returnn loss db (Eq.) where f is the frequency in GHz RLdc is the CAUI-4 Chip-to-module input differential to common mode input return loss 4 Page 4

5 Parameter Symbol Min CAUI-4 Module Electrical Output Characterist tics (TP4) AC Common-Mode output oltage (RMS) Differential Output oltage Typ. Maxx Unit 7.55 m 9 m Note Eye Width Eye Height, Differential UI m ertical Eye Closure 5.5 db Differential Output Return Loss Sdd d See Eq. db Common to Differential Mode Conversion Return Losss Scd d See Eq. db Transition Time (0% to 80%) Ps DC Common oltage m Notes: log 8 db (Eq.) 9 where f is the frequency in GHz RLd is the CAUI-4 Chip-to-module host output differential return loss where f is the frequency in GHz RLdc is the CAUI-4 Chip-to-module output common too differential mode conversionn return loss db (Eq.) 5 Page 5

6 Optical Cable Specification Parameter Minimum Cable Bending Radius Cable Cross-Section Dimension Cable Cover Type Standard Cable Length Cable Length Tolerancee Specification ~ 0 mm Roundd Cable with mm in Diameter LSZH 0, 0, 0, 50, 70, -m +/-0 cm Notes Notes:. Cable cover type standard is LSZH. Other types can be available upon request.. Different cable length within thiss range upon customization. Recommended Host Board POWER Supply Circuit 6 Page 6

7 Recommended Interface Circuit 7 Page 7

8 QSFP+ Module Pad Assignments andd Descriptions Pin Logic Symbol Description Plug Sequencee Notes CML-I Txn CML-I Txp Transmitter Inverted Data Input Transmitter Non-Inverted Data Input 4 5 CML-I Tx4n 6 CML-I Tx4p Transmitter Inverted Data Input Transmitter Non-Inverted Data Input 7 8 LTTL-I ModSelL Module Select 9 LTTL-I ResetL Module Reset 0 cc Rx +. Power Supply Receiver LCMOS- I/O LCMOS- I/O SCL -wire serial interface clock SDA -wire serial interface data 4 CML-O Rxp Receiver Non-Inverted Data Output 8 Page 8

9 5 CML-O Rxn Receiver Inverted Data Output 6 7 CML-O Rxp 8 CML-O Rxn Receiver Non-Inverted Data Output Receiver Inverted Data Output 9 0 CML-O Rxn CML-O Rxp Receiver Inverted Data Output Receiver Non-Inverted Data Output 4 CML-O Rx4n 5 CML-O Rx4p Receiver Inverted Data Output Receiver Non-Inverted Data Output 6 7 LTTL-O ModPrsL Module Present 8 LTTL-O IntL Interrupt 9 0 cc Tx +. Power supply transmitter cc +. Power supply LTTL-I LPMode Low Power Mode CML-I Txp 4 CML-I Txn Transmitter Non-Inverted Data Input Transmitter Inverted Data Input 5 6 CML-I Txp 7 CML-I Txn Transmitter Non-Inverted Data Input Teransmitter Inverted Data Input 8 9 Page 9

10 Module Outline Unit: mmm 0 Page 0

11 Memory Map The memory map is structured as a single address and multiplee page approaches, according to the QSFP8 SFF-866 MSA specification as shown s in the below.. For more detailed description of this memory map or lower pages, please see our Memory Map document with flexible customization settings. Page

12 Page Addresss Description Identifier Ext. Identifier Connector Specification Compliance 0 Encoding 05 BR, nominal FF Extendedd rate select Compliance Length(SMF) Length(OM 50 um) Length(OM 50 um) Length(OM 6.5 um) Length(Copper) XX Device tech endor name Extendedd Module endor OUI endor PN endor rev Wave length or Copper cable Attenuation Wavelength tolerancee Max case temp. CC_BASE Link codes Options 8C ,4F,5,4D,45,5,49,4, 4,4F,45,0,0,0,0,0 F,, 54,5,5,D,5,,4,48, 8,D,58,4,4,xx,xx,0 0, 0 4, 68 07, D Hex Real alue QSFP8 Power Class Module; No CLEI code present in i Page 0h; With CDR in TX and RX No. separable connector G AOC Short distance (S) Multi-Modee 50m (OM) 64B66B Gbps AOC Length xx by AOC lengthl 850nm CSEL; No wavelength control; Uncooled transmitter device; Pin detector; Transmitter not tunablee FORMERICAOE EDR/FDR/QDR/DDR/SDR TQS-Q4H8-XCAxx XX by AOC length 850nm ±0nm 70 Check summ of byte 8 ~ 90 G AOC Tx Input Equalization Auto Adaptive Capable; Rx Output Page

13 endor SN C0 DA Emphasis Fixed Programmable Setting; Rx x Output Amplitude Fixed Programmable Tx and Rx CDR ON/OFF Control Implemented Memory Page 0h/0h provided; Tx_Disable/ Tx Fault/ Tx Loss of Signal Implemented -9 0 Date Code Diagnostic Monitoring Type Enhanced Options 08 Average Power Reserved 67 CC_EXT Check summ of byte 9 ~ 4-55 endor Specific Page 0 Addresss 8-9 Description Temp high alarm Hex 50, Real alue Temp low alarm FB, -5 - Temp high warning 4B, Temp low warning, cc high alarm 8C, A cc low alarm 75, cc high warning 88, B cc low warning 79, Rx power high alarm 6, A8 4.0dBm Rx power low alarm 08, FC -6.4dBm 80-8 Rx power high warning 55, 8.4dBm 8-8 Rx power low warning 0B, dBm Tx bias high alarm 0, D4 5mA Tx bias low alarm 0, E8 ma Tx bias high warning C, EC ma 90-9 Tx bias low warning 07, D0 4mA Page