◊ Support 40-4*10GBASE-SR application ◊ Electrical interface compliant to QSFP+ connector (SFF-8436) and SFP+ connector (SFF-8431) ◊ 850nm VCSEL transmitter, PIN photo-detector receiver ◊ Multi rate of up to 10.3125Gbps per lane ◊ Operating case temperature: 0 to 70℃ ◊ +3.3V power supply voltage ◊ Low power consumption ◊ RoHS compliant ◊ UL certification cables (optional) Applications ◊ 40-4*10 Gbe-SR ◊ Fibre Channel Applications ◊ InfiniBand QDR, SDR, DDR ◊ Servers, switches, storage and host card adapters,etc. Specifications: Absolute Maximum Ratings Parameter Symbol Min Typical Max Unit Storage Temperature TS -10 -　 +85 ℃ Operating Humidity RH +5 - +85 % Supply Voltage VCC -0.5 +3.3 +3.6 V Recommended Operating Conditions Parameter Symbol Min Typical Max Unit Operating Case Temperature TC 0   +70 ℃ Supply Voltage VCC +3.14 +3.3 +3.47 V Supply current (QSFP+) ICC - - 450 mA Supply current (SFP+)(per terminal)   - - 150 mA Channel Data Rate Dr   10.3125 - Gbps Fiber bend radius - 3 - - CM Electrical and Optical characteristics Measured condition: Channel Data Rate 10.3125Gbps, VRCCR=3.3V, PRBS31, Case Operating Temperature 0~70℃ Transmitter Parameter Symbol Min Typical Max Unit Centre Wavelength λc 830 850 870 nm RMS spectral width Pm - - 0.45 nm Average launch power, each lane PAVG -6.0 - +2.4 dBm Extinction Ratio ER 3.0 - - dB Input differential swing Vin PP 200 - 1600 mV Input differential impedance Zin 90 100 110 Ω Receiver Parameter Symbol Min Typical Max Unit Centre Wavelength λc 830 850 870 nm Bit Error Rate BER - - E-12   Differential Data Output Swing Vout PP 400 - 1000 mV Output Differential Impedance Zout 90 100 110 Ω QSFP + Pin Descriptions  PIN Name Function/Description 1 GND Module Ground 2 Tx2n Transmitter inverted data input 3 Tx2p Transmitter non-inverted data input 4 GND Module Ground 5 Tx4n Transmitter inverted data input 6 Tx4p Transmitter non-inverted data input 7 GND Module Ground 8 MODSEIL Module Select 9 ResetL Module Reset 10 VCCRx +3.3v Receiver Power Supply 11 SCL 2-wire Serial interface clock 12 SDA 2-wire Serial interface data 13 GND Module Ground 14 RX3p Receiver non-inverted data output 15 RX3n Receiver inverted data output 16 GND Transmitter Power Supply 17 RX1p Receiver non-inverted data output 18 RX1n Receiver inverted data output 19 GND Module Ground 20 GND Module Ground 21 RX2n Receiver inverted data output 22 RX2p Receiver non-inverted data output    23 GND Module Ground 24 RX4n Receiver inverted data output 25 RX4p Receiver non-inverted data output    26 GND Module Ground 27 ModPrsL Module Present, internal pulled down to GND 28 IntL Interrupt output, should be pulled up on host board 29 VCCTx +3.3v Transmitter Power Supply 30 VCC1 +3.3v Power Supply 31 LPMode Low Power Mode 32 GND Module Ground 33 Tx3p Transmitter non-inverted data input 34 Tx3n Transmitter inverted data input 35 GND Module Ground 36 Tx1p Transmitter non-inverted data input 37 Tx1n Transmitter inverted data input 38 GND Module Ground SFP + Pin Descriptions   Pin Symbol Name/Description Notes 1 VEET Module Transmitter Ground 1 2 TX_FAULT Module Transmitter Fault 2 3 TX_DISABLE Transmitter Disable; Turns off transmitter laser output 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, connected to VEET or VEER in the module 2 7 RS0 Rate Select 0, optionally controls SFP+ module receiver   8 RX_LOS Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as NOT Signal Detect) 2 9 RS1 Rate Select 1, optionally controls SFP+ module transmitter   10 VEER Module Receiver Ground 1 11 VEER Module Receiver Ground 1 12 RD- Receiver Inverted Data Output   13 RD+ Receiver Non-Inverted Data Output   14 VEER Module Receiver Ground 1 15 VCCR Module Receiver 3.3 V Supply   16 VCCT Module Transmitter 3.3 V Supply   17 VEET Module Transmitter Ground 1 18 TD+ Transmitter Non-Inverted Data Input   19 TD- Transmitter Inverted Data Input   20 VEET Module Transmitter Ground 1 Mechanical Design Diagram  Table 1 Cable Length L1（Unit: m） Tolerant（Unit: cm） ＜1.0 +5/-0 1.0~4.5 +15/-0 5.0~14.5 +30/-0 ≥15.0 +2%/-0  Table 2  Length L1（Unit: m） Length L2（Unit: m） 1.0 0.7 2 1.4 3 2 ≥5.0 3 Warnings Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD). A static free environment is highly recommended. Follow guidelines according to proper ESD procedures. Laser Safety: Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation.