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100G QSFP28 to 4xSFP28 DAC Cable
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.
| Parameter | Symol | Min | Typ. | Max. | Unit | Note |
| Differential Impedance | RIN, P-P | 90 | 100 | 110 | Ώ | |
| Insertion loss | SDD21 | 8 | 22.48 | dB | At 12.8906 GHz | |
| Differential Return Loss | SDD11 | 12.45 | See 1 | dB | At 0.05 to 4.1 GHz | |
| SDD22 | 3.12 | See2 | dB | At 4.1 to 19 GHz | ||
| Common-mode to | SCC11 | 2 | dB | |||
| Common-mode | At 0.2 to 19 GHz | |||||
| Output Return loss | SCC22 | |||||
| Differential to common-mode | SCD11 | 12 | See3 | dB | At 0.01 to 12.89 GHz | |
| Return loss | SCD22 | 10.58 | See4 | At 12.89 to 19 GHz | ||
| 10 | At 0.01 to 12.89 GHz | |||||
| Differential to common mode Conversion Loss | SCD21-IL | See5 | dB | |||
| Channel Operating Margin | COM | 3 | dB | At 15.7 to 19 GHz |
Products 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
Products Applications
- Switches,servers and routers
- Data Center networks
- Storage area networks
- High performance computing
- Telecommunication and wireless infrastructure
- Medical diagnostics and networking
- Test and measurement equipment
SFP28 Pin Function Definition
| Pin | Logic | Symbol | Name/Description | Notes |
| 1 | VeeT | |||
| 2 | LV-TTL-O | TX_Fault | 1 | |
| 3 | LV-TTL-I | TX_DIS | 2 | |
| 4 | LV-TTL-I/O | SDA | ||
| 5 | LV-TTL-I | SCL | ||
| 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 | Reciever Supply 3.3V | ||
| 17 | VeeT | Transmitter Supply 3.3V | ||
| 18 | CML-I | TD+ | Transmitter Data Non-Inverted | |
| 19 | CML_I | TD- | Transmitter Data Inverted | |
| 20 | VeeT | Transmitter Ground |
Products Description
100G DAC Cable's Mechanical Specifications
100G DAC Cable 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 | RoHS 6/6 compliant |
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SFP28 Pin Function Definition
| Pin | Logic | Symbol | Name/Description | Notes |
| 1 | VeeT | |||
| 2 | LV-TTL-O | TX_Fault | 1 | |
| 3 | LV-TTL-I | TX_DIS | 2 | |
| 4 | LV-TTL-I/O | SDA | ||
| 5 | LV-TTL-I | SCL | ||
| 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 | Reciever Supply 3.3V | ||
| 17 | VeeT | Transmitter Supply 3.3V | ||
| 18 | CML-I | TD+ | Transmitter Data Non-Inverted | |
| 19 | CML_I | TD- | Transmitter Data Inverted | |
| 20 | VeeT | Transmitter Ground |
Products Description
100G DAC Cable's Mechanical Specifications
100G DAC Cable 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 | RoHS 6/6 compliant |
