FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015

 Finisar Corporation – 8-Sep-15 Rev A7 Preliminary

Page 3

26

GND

Ground

1

27

ModPrsL

Module Present

28

IntL

Interrupt

29

Vcc Tx

+3.3 V Power supply transmitter

30

Vcc1

+3.3 V Power Supply

31

LPMode

Low Power Mode

32

GND

Ground

1

33

Tx3p

Transmitter Non-Inverted Data Input

34

Tx3n

Transmitter Inverted Data Input

35

GND

Ground

1

36

Tx1p

Transmitter Non-Inverted Data Input

37

Tx1n

Transmitter Inverted Data Input

38

GND

Ground

1

Notes

1.

Circuit ground is internally isolated from chassis ground.

II.

General Product Characteristics

Parameter

Value

Unit

Notes

Module Form Factor

QSFP28

As defined by SFF-8661

Number of Lanes

4 Tx and 4 Rx

Maximum Aggregate Data Rate

103.125

Gb/s

Maximum Data Rate per Lane

25.78125

Gb/s

Standard Cable Lengths

1, 3, 5, 10, 15, 20, 30, 50,

100

meters

Other lengths may be available

upon request

Protocols Supported

Typical applications include

InfiniBand QDR/FDR/EDR,

10/25/40G/100G Ethernet,

4/8/16/32G Fibre Channel,

SAS3

Electrical Interface and Pin-out

38-pin edge connector

Pin-out as defined by SFF-8679

Standard Optical Cable Type

Multimode round fiber

cable, plenum-rated

OFNP

Maximum Power Consumption

per End

3.5 (retimed Tx)

2.5 (unretimed)

Watts

Varies with output voltage swing

and pre-emphasis settings

Management Interface

Serial, I2C-based, 450 kHz

maximum frequency

As defined by SFF-8636

Data Rate Specifications

Symbol

Min

Typ

Max

Units

Ref.

Bit Rate per Lane

BR

10.00000

25.781.25

28.05

Gb/sec

1

Bit Error Ratio

BER

10

-12

2

Notes:

1.

Supports InfiniBand QDR/FDR/EDR, 10/25/40/100 Gigabit Ethernet and 8/16/32G Fibre Channel

applications.

2.

Tested with a PRBS 2