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The QSFP56 200G SR4 Fiber Optic Module supports 200GE links and up to two 100GBASE-SR2 breakout links or four 50GBASE-SR lengths of up to 100m over OM4 MMF.
The module has four pairs of Multi-Mode Fiber with an MPO-12 UPC connector. It is compliant to the IEEE 802.3bm protocol and 200GAUI-4/CEI-56G-VSR-PAM4 standards.
The 200 Gigabit Ethernet signal is carried over four parallel pairs of fibers at a nominal wavelength of 850nm at 50Gbps per fiber. It can also be used as 2x100GE breakout to 100GBASE-SR2 modules. FEC is performed on the host platform.
The QSFP56 200G SR4 fiber optic transceivers are high performance, cost effective I/O solutions for LAN, HPC and SAN. The high-speed transceivers meet and exceed 200G Ethernet, InfiniBand HDR and temperature requirements for performance and reliability. The transceivers are compliant with SFF-8636 specifications and provide connectivity between devices using QSFP56 ports.
| Parameter | Symbol | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Bit Rate | BR | - | 26.5625 ± 100 ppm | - | GBd | PAM4 |
| Center Wavelength Range | λc | 840 | 850 | 860 | nm | - |
| Damage threshold | DT | 5 | - | - | dBm | - |
| Average receive power, each lane | PIN | -8.4 | - | 4 | dBm | - |
| Receive power, each lane (OMAouter) | PINOMA | - | - | 3 | dBm | - |
| Receive Sensitivity (OMAouter), each lane | Sen | max(-6.5, SECQ-7.9) | dBm | 1,2 | ||
| Stressed receiver sensitivity (OMAouter), each lane | SenSTR | - | - | -3.4 | dBm | 1 |
| Receiver reflectance | RF | - | - | -12 | dB | - |
| Parameter | Symbol | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Module Supply Current | Icc | - | - | 1364 | mA | - |
| Power Dissipation | PD | - | - | 4.5 | W | - |
| Transmitter | ||||||
| Signaling data (each lane) | - | - | 26.5625 ± 100 ppm | - | GBd | PAM4 |
| Input Differential Impedance | Zin | 90 | 100 | 110 | Ω | - |
| Differential Data Input Swing | VIN,P-P | 300 | - | 900 | mVpp | - |
| Differential termination mismatch | - | - | - | 10 | % | - |
| Single-ended voltage tolerance range | - | -0.4 | - | 3.3 | V | - |
| DC common mode voltage | - | -350 | - | 2850 | mV | - |
| Receiver | ||||||
| Signaling rate (each lane) | - | - | 26.5625 ± 100 ppm | - | mVpp | PAM4 |
| Output Differential Impedance | Zout | 90 | 100 | 110 | Ω | - |
| Differential Data Output Swing | VOUT,P-P | 300 | - | 900 | mVpp | - |
| Differential termination mismatch | - | - | - | 10 | % | - |
| Data Output Rise Time, Fall Time | Tr/Tf | 9.5 | - | - | ps | - |
| DC common mode voltage | - | -350 | - | 2850 | mV | - |
| Error Bit Rate | BER | - | - | 2.4E-4 | - | 1 |
