100G QSFP28 to 4xSFP28 DAC Cable 2M
100G QSFP28 to 4xSFP28 DAC Cable 2M
Ordering information
| Part Number | Product Description | Fiber Spec. |
| S-Q81AP002-C | 100G QSFP28 to 4x25G DAC Cable 2M | 0~70℃ |
Description
Springtek 100G QSFP28 to 4x 25G SFP28 direct attach passive copper cable are suitable for very short distances and offer a highly cost-effective way to establish a 100-Gigabit link between QSFP28 and SFP28 equipment connections. These cables are used for 100GbE and Infniband standards, to maximize performance. The Hybrid cables are designed to meet emerging data center and high performance computing application needs for a high density cabling interconnect system capable of delivering an aggregate data bandwidth of 100Gb/s. This interconnect system is fully compliant with existing industry standard specifications such as the QSFP MSA and IBTA (InfiniBand Trade Association). The Hybrid cables support the bandwidth transmission requirements as defined by IEEE 802.3ba (100 Gb/s) and Infiniband QDR ( 4x25 Gb/s per channel) specifications.
Features
- Supporting 100 Gbps to 4 x 25 Gbps
- Support data rates : 25.78Gb/s (per channel)
- IEEE 802.3bj 100GEBASE-CR4 and P802.3by compliant
- Compatible to SFP28 MSA and QSFP28 MSA
- Compatible to SFF-8402, SFF-8432 and SFF8665
- Maximum aggregate data rate: 100 Gb/s (4 x 25Gb/s)
- High-Density QSFP28 38-PIN and 4x SFP28 20-PIN Connector
- Copper link length up to 5m
- Power Supply : +3.3V
- Low crosstalk
- I2C based two-wire serial interface for EEPROM signature
- Operating Temperature: 0~ 70 °C
- ROHS Compliantonnector
Applications
- 100G/25G Ethernet
- InfiniBand 4x SDR/DDR/QDR
- DATA Center & Clouds
- Fibre Channel over Ethernet
- SAS, Servers, Hubs, Switches, and Routers
Recommended Operating Conditions
| Parameter | Symbol | Min | Typical | Max | Unit |
| Storage Ambient Temperature | -40 | +85 | °C | ||
| Operating Case Temperature | Tc | 0 | +70 | °C | |
| Power Supply Voltage | VCC3 | 3.14 | 3.3 | 3.47 | V |
High Speed Characteristics
| Parameter | Symbol | Min | Typic al | Max | Unit | Note |
| Differential Impedance | RIN,P-P | 90 | 110 | Ώ | ||
| Insertion loss | SDD21 | 22.48 | dB | At 12.8906 GHz | ||
|
Differential Return Loss |
SDD11 | See 1 | dB | At 0.05 to 4.1 GHz | ||
| SDD22 | See 2 | dB | At 4.1 to 19 GHz | |||
| Common-mode to ommon-mode output return loss | SCC11 | 2 | dB |
At 0.2 to 19 GHz |
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| SCC22 | ||||||
|
Differential to common-mode return loss |
SCD11 | See 3 | dB | At 0.01 to 12.89 GHz | ||
| SCD22 | See 4 | At 12.89 to 19 GHz | ||||
| Differential to common Mode Conversion Loss | SCD21 | 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 | |||
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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 |
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