Q1: What is a QSFP56-200G-SR4 module?
A: The QSFP56-200G-SR4 is a QSFP56 transceiver designed for 200 Gbps Ethernet over multimode fiber (MMF), featuring four 850 nm PAM4 lanes and utilizing an MTP/MPO-12 connector.
Q2: What is the supported transmission distance?
A: Up to 70 m on OM3 and 100 m on OM4/MMF, typically with host-side forward error correction (FEC) enabled.
Q3: What connector and fiber type does it use?
A: Uses a MTP/MPO-12 connector over 50/125 µm multimode fiber (OM3/OM4/OM5).
Q4: Is the module compatible with different brands' equipment?
A: Yes. It's MSA-compliant and widely compatible with switch and NIC vendors like Cisco, Arista, Huawei, Juniper, Intel, Mellanox, and others that support 200 GbE optics.
Q5: Does QSFP56-200G-SR4 support hot-swapping?
A: Yes. The QSFP56 form factor supports hot-pluggable insertion/removal without powering down the host device.
Q6: Does it support diagnostic monitoring (DDM/DOM)?
A: Yes. Supports CMIS V4.0 or SFF-8636/8679 digital diagnostic monitoring via I²C for optical power, temperature, voltage, etc.
Q7: What is the aggregate and per-lane data rate?
A: Supports 212.5 Gbps aggregate using four PAM4 lanes at 53.125 Gbps each. Can fall back to 103.1 Gbps NRZ (like 100GBASE-SR4) if required.
Q8: What is the typical power consumption?
A: Typical power consumption is less than 5 W, often around 4.5 W depending on vendor.
Q9: What is the operating temperature range?
A: Standard commercial modules support 0 °C to 70 °C. Industrial variants may offer extended ranges if specified.
Q10: Which IEEE and MSA standards does it comply with?
A: Compliant with IEEE 802.3cd/802.3bs (200GBASE-SR4), QSFP56 MSA, and CMIS V4.0 / SFF-8636 / SFF-8679.
Q11: How to check compatibility with my device?
A: Ensure your networking hardware supports QSFP56-200G SR4 optics, allows generic optics, and supports host-side FEC. Many vendors list module part numbers or MSA compatibility.
Q12: What are typical applications for QSFP56-200G-SR4?
A: Ideal for 200 GbE data center interconnects, rack-to-rack links, spine-leaf architectures, and high-density multimode backbone deployment.
Q13: Can this module be used in breakout mode?
A: No. QSFP56-200G-SR4 is not breakout-capable into multiple lower-rate lanes (e.g. no split into 4×50G) at the port level.
Q14: What is the optical power budget per lane?
A: Typical Tx launch power: -6.5 dBm to +4 dBm; sensitivity: around -8.4 dBm, providing sufficient margin for 70-100 m links with FEC.
Q15: Are industrial or extended temperature versions available?
A: Yes. Standard is 0-70 °C; industrial-grade modules with support for broader temperature ranges and longer reliability lifespans are available.