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當(dāng)前位置：上海匯海信息科技股份有限公司>>交換機和AOC類>>SFP模塊和AOC光跳線>>100G QSFP28/4SFP28 Direct Attach Cable (DAC)

100G QSFP28/4SFP28 Direct Attach Cable (DAC)

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產(chǎn)品型號FGT-100GSFP4-DAC1M

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產(chǎn)品簡介

GeneralDescriptionQSFP28passivecoppercableassemblyfeatureeightdifferentialcopperpairs

詳細(xì)介紹

General Description

QSFP28 passive copper cable assembly feature eight differential copper pairs,providing four data transmission channels at speeds up to 28Gbps per channel,ａnd meets 100G Ethernet,25G Ethernet and InfiniBａnd Enhanced Data Rate(EDR) requirements.Available in a broad rang of wire gages-from 26AWG through 30AWG-this 100G copper cable assembly features low insertion loss and low cross talk.

Designed for applications in the data center,networking and telecommunications markets that require a high speed,reliable cable assembly,this next generation product shares the same mating interface with QSFP+ form factor ,making it backward compatible with existing QSFP ports.QSFP28 can be used with current 10G and 14G applications with substantial signal integrity margin.


Features and Benefits

l Compatible with IEEE 802.3bj,IEEE 802.3by and InfiniBａnd EDR

l Supports aggregate data rates of 100Gbps

l Optimized construction to minimize insertion loss and cross talk

l Backward compatible with existing QSFP+ connectors and cages

l Pull-to-release slide latch design

l 26AWG through 30AWG cable

l Straight and break out assembly configurations available

l Customized cable braid termination limits EMI radiation

l Customizable EEPROM mapping for cable signature

l RoHS compliant

Product Applications

l Switches,servers and routers

l Data Center networks

l Storage area networks

l High performance computing

l Telecommunication and wireless infrastructure

l Medical diagnostics and networking

l Test and measurement equipment

Industry Standards

l 100G Ethernet(IEEE 802.3bj)

l 25G Ethernet(IEEE 802.3by)

l InfiniBａnd EDR

l SFF-8665 QSFP+ 28G 4X Pluggable Transceiver Solution(QSFP28)

l SFF-8402 SFP+ 1X 28Gb/s Pluggable Transceiver Solution(SFP28)

Technical Documents

l 108-32081 QSFP28 Copper Module Direct Attach Cable Assembly

l 108-2364 Single Port and Ganged SFP+ Cages,Zsfp+ Single Port and Ganged Cages,ａnd SFP+ Copper Direct Attach Cable Assemblies.

High Speed Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Note

Differential Impedance

TDR

90

100

110

?


Insertion loss

SDD21

-22.48



dB

At 12.8906 GHz

Differential Return Loss

SDD11

SDD22



See 1

dB

At 0.05 to 4.1 GHz



See 2

dB

At 4.1 to 19 GHz

Common-mode to common-mode output return loss

SCC11

SCC22



-2

dB

At 0.2 to 19 GHz

Differential to common-mode

return loss

SCD11

SCD22



See 3

dB

At 0.01 to 12.89 GHz



See 4

At 12.89 to 19 GHz

Differential to common Mode

Conversion Loss

SCD21-IL



-10

dB

At 0.01 to 12.89 GHz



See 5

At 12.89 to 15.7 GHz



-6.3

At 15.7 to 19 GHz

Notes:

1. Reflection Coefficient given by equation SDD11(dB) < -16.5 + 2 × SQRT(f ), with f in GHz

2. Reflection Coefficient given by equation SDD11(dB) < -10.66 + 14 × log10(f/5.5), with f in GHz

3. Reflection Coefficient given by equation SCD11(dB) < -22 + (20/25.78)*f, with f in GHz

4. Reflection Coefficient given by equation SCD11(dB) < -15 + (6/25.78)*f, with f in GHz

5. Reflection Coefficient given by equation SCD21(dB) < -27 + (29/22)*f, with f in GHz

Pin Descriptions

SFP28 Pin Function Definition

Pin

Logic

Symbol

Name/Description

Notes

1


VeeT

Transmitter Ground


2

LV-TTL-O

TX_Fault

N/A

1

3

LV-TTL-I

TX_DIS

Transmitter Disable

2

4

LV-TTL-I/O

SDA

Tow Wire Serial Data


5

LV-TTL-I

SCL

Tow Wire Serial Clock


6


MOD_DEF0

Module present, connect to VeeT


7

LV-TTL-I

RS0

N/A

1

8

LV-TTL-O

LOS

LOS of Signal

2

9

LV-TTL-I

RS1

N/A

1

10


VeeR

Reciever Ground


11


VeeR

Reciever Ground


12

CML-O

RD-

Reciever Data Inverted


13

CML-O

RD+

Reciever Data Non-Inverted


14


VeeR

Reciever Ground


15


VccR

Reciever Supply 3.3V


16


VccT

Transmitter Supply 3.3V


17


VeeT

Transmitter Ground



18

CML-I

TD+


Transmitter Data Non-Inverted



19

CML_I

TD-


Transmitter Data Inverted



20


VeeT


Transmitter Ground


1.

Signals not supported in SFP+ Copper pulled-downto VeeT with 30K ohms resistor


2.

Passive cable assemblies do not support

LOS and TX_DIS



QSFP28 Pin Function Definition

Pin

Logic

Symbol

Description


1


GND

Ground







2

CML-I

Tx2n

Transmitter Inverted Data Input







3

CML-I

Tx2p

Transmitter Non-Inverted Data Input


4


GND

Ground







5

CML-I

Tx4n

Transmitter Inverted Data Input







6

CML-I

Tx4p

Transmitter Non-Inverted Data Input







7


GND

Ground







8

LVTTL-I

ModSelL

Module Select







9

LVTTL-I

ResetL

Module Reset







10


Vcc Rx

+3.3V Power Supply Receiver







11

LVCMOS-

SCL

2-wire serial interface clock


I/O











12

LVCMOS-

SDA

2-wire serial interface data


I/O











13


GND

Ground







14

CML-O

Rx3p

Receiver Non-Inverted Data Output







15

CML-O

Rx3n

Receiver Inverted Data Output


16


GND

Ground







17

CML-O

Rx1p

Receiver Non-Inverted Data Output







18

CML-O

Rx1n

Receiver Inverted Data Output







19


GND

Ground









20


GND

Ground









21

CML-O

Rx2n

Receiver Inverted Data Output









22

CML-O

Rx2p

Receiver Non-Inverted Data Output



23


GND

Ground









24

CML-O

Rx4n

Receiver Inverted Data Output









25

CML-O

Rx4p

Receiver Non-Inverted Data Output









26


GND

Ground



27

LVTTL-O

ModPrsL

Module Present









28

LVTTL-O

IntL

Interrupt









29


Vcc Tx

+3.3V Power supply transmitter









30


Vcc1

+3.3V Power supply









31

LVTTL-I

LPMode

Low Power Mode









32


GND

Ground









33

CML-I

Tx3p

Transmitter Non-Inverted Data Input









34

CML-I

Tx3n

Transmitter Inverted Data Input









35


GND

Ground









36

CML-I

Tx1p

Transmitter Non-Inverted Data Input



37

CML-I

Tx1n

Transmitter Inverted Data Input









38


GND

Ground








Length (m)

Cable AWG

1

30

2

30

3

30/26

4

26

5

26

Regulatory Compliance

Feature

Test Method

Performance

Electrostatic Discharge (ESD) to the Electrical Pins

MIL-STD-883C Method 3015.7

Class 1(>2000 Volts)

Electromagnetic Interference(EMI)

FCC Class B

Compliant with Standards

CENELEC EN55022 Class B

CISPR22 ITE Class B

RF Immunity(RFI)

IEC61000-4-3

Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz

RoHS Compliance

RoHS Directive 2011/6/5/EU and it's Amendment Directives 6/6

RoHS 6/6 compliant





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