Parameter

Symbol

Min

Typical

Max

Unit

Notes

Center Wavelength

λout

840

850

860

nm

Average Launch Power each

lane

Pout

-7.6

2.4

dBm

Difference in Power between

any two lanes [OMA]

DPX

4.0

dB

Peak Power per Lane

PPX

4.0

dBm

Spectral Width (RMS)

σ

0.65

nm

Optical Extinction Ratio

ER

3.0

dB

Transmitter and Dispersion

Penalty each lane

TDP

3.5

dB

Optical Return Loss Tolerance

ORL

12

dB

Average launch power of OFF

transmitter, per lane

-30

dBm

Transmitter eye mask

definition{X1,X2,X3,Y1,Y2,Y3}

{0.23,0.34,0.43,0.27,0.35,0.4}

Optical Receiver Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Receiver Wavelength

λin

840

860

nm

Average Receive Power per

Lane

RXPx

-9.5

2.4

dBm

Stressed Receiver Sensitivity in

OMA

SRS

-5.4

dBm

1

LOS Assert

LOSA

-30

dBm

LOS De-Assert

LOSD

-12

dBm

LOS Hysteresis

0.5

dB

Receiver Reflectance

Rfl

-12

dB

1

GND

Transmitter Ground

1

2

Tx2n

Transmitter Inverted Data Input

3

Tx2p

Transmitter Non-Inverted Data output

4

GND

Transmitter Ground

1

5

Tx4n

Transmitter Inverted Data Input

6

Tx4p

Transmitter Non-Inverted Data output

7

GND

Transmitter Ground

1

8

ModSelL

Module Select

9

ResetL

Module Reset

10

VccRx

3.3V Power Supply Receiver

2

11

SCL

2-Wire serial Interface Clock

12

SDA

2-Wire serial Interface Data

13

GND

Receiver Ground

1

14

Rx3p

Receiver Non-Inverted Data Output

15

Rx3n

Receiver Inverted Data Output

16

GND

Receiver Ground

1

17

Rx1p

Receiver Non-Inverted Data Output

18

Rx1n

Receiver Inverted Data Output

19

GND

Receiver Ground

1

20

GND

Receiver Ground

1

21

Rx2n

Receiver Inverted Data Output

22

Rx2p

Receiver Non-Inverted Data Output

23

GND

Receiver Ground

1

24

Rx4n

Receiver Inverted Data Output

25

Rx4p

Receiver Non-Inverted Data Output

26

GND

Receiver Ground

1

27

ModPrsl

Module Present

28

IntL

Interrupt

29

VccTx

3.3V power supply transmitter

2

30

Vcc1

3.3V power supply

2

31

LPMode

Low Power Mode，not connect

32

GND

Transmitter Ground

1

33

Tx3p

Transmitter Non-Inverted Data Input

34

Tx3n

Transmitter Inverted Data Output

35

GND

Transmitter Ground

1

36

Tx1p

Transmitter Non-Inverted Data Input

38

GND

Transmitter Ground

1

Pack

Rate* (Gbps)

Po (dBm)

RX

Sen* (dBm)

Temp (℃)

Reach (m)

Pull tap

Color

DDM

HD-QSFP+/40G-SR4

QSFP+

4*10.3125

-7.6~2.4

PIN

<-9.5

0~+70

150

Beige

Y