200G QSFP56 SR4 Optical Transceiver Module — High-Speed Data Center Connectivity with Reliable Performance
1. Product Overview
The 200G QSFP56 SR4 Optical Transceiver Module (Model: CC-QSFP02SR4-12C) is a high-performance, hot-pluggable fiber optic solution designed for high-bandwidth data center and high-performance computing applications. It supports 4 independent channels operating at 26.56 GBaud per lane, delivering an aggregate data rate of 200G over OM4 multimode fiber for distances up to 100 meters. Compliant with industry standards including SFF-8679 and CMIS 5.0, this optical transceiver module ensures reliable interoperability and superior signal integrity.
2. 200G QSFP56 SR4 Key Features
- 4-channel parallel optical interface with integrated CDR
- Hot-pluggable QSFP56 form factor
- Up to 100m on OM4 MMF and 70m on OM3 MMF
- 850nm VCSEL and PD array technology
- Low power consumption with typical supply current of 1180 mA
- Supports PAM4 modulation
- MPO-12 APC connector interface
- Compliant with CMIS 5.0 and QSFP-DD Hardware Rev5.1
3. Core Technologies & Standards
This optical transceiver module leverages advanced 850nm VCSEL and photodiode array technology, PAM4 modulation, and integrated clock and data recovery (CDR) circuits. It adheres to SFF-8679, CMIS 5.0, QSFP-DD MSA, and IEC laser safety standards, ensuring robust and compliant performance in demanding environments.
4. Working Principle
The 200G QSFP56 SR4 module converts electrical signals into optical signals via a VCSEL array. Each of the four lanes operates at 26.56 GBaud using PAM4 modulation. On the receiver side, a PIN photodiode array and transimpedance amplifier (TIA) convert incoming optical signals back to electrical outputs. An integrated MCU manages digital control functions including I²C communication, initialization, and low-power mode operation.
5. Applications
- Data center interconnects and spine-leaf architectures
- High-performance computing (HPC) clusters
- Cloud infrastructure and enterprise networking
- AI and machine learning training networks
6. 200G QSFP56 SR4 Specifications
| Parameter | Min | Typ | Max | Unit |
| Data Rate per Lane | - | 26.56 | - | GBaud |
| Operating Temperature | 0 | 25 | 70 | °C |
| Supply Voltage | 3.135 | 3.3 | 3.465 | V |
| Tx Output Power | -6.5 | - | 4 | dBm |
| Receiver Sensitivity | -8.4 | - | 4 | dBm |
7. Advantages
- Higher density and lower power per bit compared to previous generations
- Superior TDECQ performance for improved signal integrity
- Designed for compatibility with major switch and router platforms
- Robust construction and rigorous testing ensure long-term reliability
8. Service & Support
We offer a comprehensive warranty, rapid delivery, and 24/7 technical support. Our team provides integration assistance and compatibility verification to ensure seamless deployment. Bulk order discounts and customized labeling options are available.
9. Frequently Asked Questions
Q: What is the maximum distance supported by this optical transceiver module?
A: It supports up to 100m on OM4 and 70m on OM3 multimode fiber.
Q: Is this module compatible with QSFP28 ports?
A: While electrically compatible, please verify host system support for 200G rates and MPO-12 connectivity.
Q: Does it support digital diagnostics monitoring (DDM)?
A: Yes, via the I²C interface and CMIS 5.0 compliance.
10. Precautions
- Avoid exposure to static electricity. Use ESD-safe handling procedures.
- Do not disconnect under operation to avoid transceiver damage.
- Ensure clean MPO connectors to prevent optical link degradation.
- Complies with Class 1 laser safety standards. Do not view directly with optical instruments.
11. Company Introduction
With over a decade of industry experience, we operate a large-scale manufacturing facility supported by a strong technical team. We serve a global clientele with a wide range of original brand-new networking products, including switches, network adapters, wireless access points, and cables. Our inventory exceeds 10 million units, enabling us to supply products in large volumes with competitive pricing and reliable service. We are an authorized distributor for leading brands such as Mellanox, Ruckus, Aruba, and Extreme.
