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QSFP28 100Gb/s to 2 QSFP28 50G Direct Attached Cable
  • QSFP28 100Gb/s to 2 QSFP28 50G Direct Attached Cable

QSFP28 100Gb/s to 2 QSFP28 50G Direct Attached Cable

Intcera’s QSFP28 passive copper cable assembly feature eight differential copper pairs, providing four data transmission channels at speeds up to 25Gbps per channel, and meets 100G Ethernet and InfiniBand 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.

 

Product description

PRODUCT FEATURES

•Compatible with IEEE 802.3bj, SFF-8432 and SFF-8665
•In accordance with the paging function in the protocol SFF-8636,
paging can be selected 00H or 02H in 127 bytes
•Supports aggregate data rates of 100Gbps
•Optimized construction to minimize insertion loss and cross talk
•Backward compatible with existing QSFP+ connectors and cages
•Straight and break out assembly configurations available
•Customized cable braid termination limits EMI radiation
•Customizable EEPROM mapping for cable signature
•RoHS compliant

APPLICATIONS

•Switches, servers and routers
•Data Center networks
•Storage area networks
•High performance computing
•Telecommunication and wireless infrastructure
•Medical diagnostics and networking

PRODUCT DESCRIPTION

Intcera’s QSFP28 passive copper cable assembly feature eight differential copper pairs, providing four data transmission channels at speeds up to 25Gbps per channel, and meets 100G Ethernet and InfiniBand 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.

Ordering Information

Part Number

Description
QP1H2X-DP1M30WG 100G QSFP28 to 2 QSFP28 50G DAC passive cable 30AWG 1m
QP1H2X-DP2M30WG 100G QSFP28 to 2 QSFP28 50G DAC passive cable 30AWG 2m
QP1H2X-DP3M30WG 100G QSFP28 to 2 QSFP28 50G DAC passive cable 30AWG 3m
QP1H2X-DP4M26WG 100G QSFP28 to 2 QSFP28 50G DAC passive cable 26AWG 4m
QP1H2X-DP5M26WG 100G QSFP28 to 2 QSFP28 50G DAC passive cable 26AWG 5m 

 

High Speed Characteristics

Parameter

Symbol

 Min

Typical

 Max

Unit

Note

Differential Impedance

TDR

90

100

110

Ώ

  

Insertion loss

SDD21

-16.06

  

-8

dB

At 13.28 GHz

Differential Return Loss

SDD11

SDD22

-12.45

  

See 1

dB

At 0.05 to 4.1 GHz

-3.12

 

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

-12

  

See 3

dB

At 0.01 to 12.89 GHz

-10.58

  

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

Channel Operating Margin

COM

 

  

-3

dB

  
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

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- I/O

SCL

 2-wire serial interface clock

12

LVCMOS- I/O

SDA

 2-wire serial interface data

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

a

Mechanical Specifications

a

 Regulatory Compliance

Item 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 2011/65/EU and it's Amendment Directives 6/6 RoHS 6/6 compliant

 Appendix A. Document Revision

Version No. Date Description
1.0 2020-3-5 Preliminary datasheet 
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