High Speed 100Gb/s QSFP28 to 4xSFP28 Passive Direct Attach Copper
cable 1M
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.
Key Features
Compatible with IEEE 802.3bj,IEEE 802.3by and InfiniBand EDR
Supports aggregate data rates of 100Gbps
Optimized construction to minimize insertion loss and cross talk
Backward compatible with existing QSFP+ connectors and cages
Pull-to-release slide latch design
26AWG through 30AWG cable
Straight and break out assembly configurations available
Customized cable braid termination limits EMI radiation
Customizable EEPROM mapping for cable signature
RoHS compliant
Application
Switches,servers and routers
lData Center networks
lStorage area networks
lHigh performance computing
lTelecommunication and wireless infrastructure
lMedical diagnostics and networking
lTest and measurement equipment
Technical Parameter
| Parameter | Symbol | Min | Typical | Max | Unit | Note |
| Differential Impedance | TDR | 90 | 100 | 110 | Ώ | |
| Insertion loss | SDD21 | 8 | | 22.48 | dB | At 12.8906 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: - Reflection Coefficient given by equation SDD11(dB) < 16.5 - 2 ×
SQRT(f ), with f in GHz
- Reflection Coefficient given by equation SDD11(dB) < 10.66 - 14
× log10(f/5.5), with f in GHz
- Reflection Coefficient given by equation SCD11(dB) < 22 -
(20/25.78)*f, with f in GHz
- Reflection Coefficient given by equation SCD11(dB) < 15 -
(6/25.78)*f, with f in GHz
- Reflection Coefficient given by equation SCD21(dB) < 27 -
(29/22)*f, with f in GHz
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Mechanical Dimensions
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