Optical Transceiver Module 200G QSFP56 SR4 AOC 3m For 200G Ethernet OM4 MMF, Low Power, CMIS Compliant

200G QSFP56 SR4 AOC 3m

Deliver high-speed, reliable connectivity for data centers and high-performance computing (HPC) with our 200G QSFP56 SR4 AOC 3m  Active Optical Cable (AOC). This Optical Transceiver Module solution is engineered for efficiency and performance in demanding environments.

Key Selling Points

• Hot-pluggable QSFP56 form factor for easy deployment and maintenance.
• Supports 200Gbps data rate (4x50G PAM4) over multi-mode fiber.
• Reach up to 100m on OM4 MMF and 70m on OM3 MMF.
• Low power consumption, typically under 4W per port.
• Compliant with industry standards including QSFP56 MSA, SFF-8636, and IEEE 802.3cd.

Product Overview

The 200G QSFP56 SR4 AOC is designed for short-range, high-speed data communication links. It integrates four independent full-duplex channels, each operating at 26.56 GBaud (53.125 Gbps with PAM4 encoding), providing an aggregate bandwidth of 200 Gbps. This optical module is an ideal solution for replacing bulkier copper cables, offering a longer reach, higher bandwidth density, and superior immunity to electromagnetic interference (EMI).

200G QSFP56 SR4 AOC 3m  Characteristics

• Hot-pluggable QSFP56 form factor.
• 4-channel parallel Optical Transceiver Module.
• 850nm VCSEL array transmitter and PIN photodetector array receiver.
• Built-in CDR (Clock and Data Recovery) on both transmitter and receiver channels.
• Low power consumption: < 4W typical.
• Digital Diagnostic Monitoring (DDM) via I2C interface.
• RoHS compliant.

Technology

This AOC utilizes PAM4 (Pulse Amplitude Modulation 4-level) modulation technology, effectively doubling the data throughput compared to traditional NRZ modulation without increasing bandwidth requirements. It complies with the QSFP56 MSA, IEEE 802.3cd 200GBASE-SR4 Ethernet standard, and CMIS (Common Management Interface Specification) revision 4.0. The electrical interface is 200GAUI-4.

Working Principle

The AOC functions by converting electrical signals into optical signals for transmission over an embedded multi-mode fiber cable. The transmitter side uses a VCSEL (Vertical-Cavity Surface-Emitting Laser) array to convert incoming electrical differential signals (TX1P/N to TX4P/N) into light pulses. These pulses travel through the fiber. On the receiver end, a PIN photodiode array detects the light pulses and converts them back into electrical differential signals (RX1P/N to RX4P/N). Integrated CDR circuits on both ends ensure signal integrity and timing recovery.

Applications

• Data center spine-leaf interconnections.
• High-Performance Computing (HPC) clusters.
• Artificial Intelligence (AI) and machine learning training fabric.
• Network infrastructure within storage area networks (SAN).
• Connecting top-of-rack (ToR) switches to servers or other switches.

It is compatible with major brands of switches and adapters supporting the QSFP56 form factor and 200G Ethernet or InfiniBand HDR protocols.

Specifications & Selection Guide

Technical Specifications

Ordering Information

Advantages

• Superior Reach and Bandwidth: Offers longer distances (up to 100m) and higher bandwidth compared to passive DACs, which are typically limited to shorter reaches (<5m).
• EMI Immunity: Optical fiber is immune to electromagnetic interference, ensuring stable data transmission in electrically noisy environments.
• Reduced Weight and Bulk: Thinner and lighter than equivalent copper cables, improving airflow and easing cable management in high-density racks.
• Lower Power: Consumes less power than active copper solutions for distances beyond a few meters, contributing to lower operating expenses (OPEX) and cooler running data centers.
• Investment Protection: The Optical Transceiver Module design, akin to future 800g osfp technologies, ensures compatibility and scalability.

Service & Support

We stand behind our products with a comprehensive service package. This includes a standard limited warranty, reliable lead times for volume orders, and access to pre-sales technical consultation. Our support team is available to assist with integration challenges and ensure optimal performance within your specific network environment.

Frequently Asked Questions (FAQ)

Q1: What is the difference between this AOC and a DAC (Direct Attach Copper Cable)?

A: AOCs use fiber optics, allowing for longer reaches (up to 100m), immunity to EMI, and lower weight. DACs are copper-based, generally limited to shorter distances (typically <5m for 200G), are heavier, and can be susceptible to EMI.

Q2: Is this AOC compatible with 100G QSFP28 ports?

A: The physical connector is designed for QSFP56 ports. While electrical compatibility might be possible in some break-out scenarios (e.g., 200G to 2x100G), it primarily requires a native QSFP56 port for 200G operation. Always check switch/adapter compatibility lists.

Q3: What is the typical power consumption of this cable?

A: The typical power consumption is less than 4W, making it an energy-efficient choice for high-density deployments.

Q4: Can I use this AOC with OM5 fiber?

A: Yes, this AOC is compatible with OM5 multimode fiber and can achieve the maximum specified distance of 100m.

Precautions

• Handling: Avoid bending the cable beyond its minimum bend radius (30 mm) to prevent permanent damage to the internal fibers.
• Compatibility: Verify compatibility with your specific switch, router, or adapter model before purchase. While compliant with standards, implementation can vary.
• Environment: Operate and store the cable within the specified temperature and humidity ranges to ensure reliability and longevity.
• Cleaning: Keep the optical connectors clean and protected with dust caps when not in use. Contaminated connectors can significantly degrade performance.
• Electrostatic Discharge (ESD): Observe standard ESD precautions during handling to prevent damage to the internal electronics.

Company Introduction

Leveraging over a decade of industry experience, our company operates from a large-scale manufacturing facility supported by a robust technical engineering team. We have built a solid reputation by serving a diverse global clientele with high-quality networking solutions.

We are a trusted partner for leading brands and offer a comprehensive portfolio including original new network switches, adapters, wireless access points, wireless controllers, and cables. Our extensive inventory, valued in the millions, enables us to supply a wide variety of products in large quantities to meet project demands.

Our commitment extends beyond delivery. We provide round-the-clock customer consultation and technical support, ensuring your operations run smoothly. Our dedicated professional sales and technical teams have earned us high recognition in the global market for reliability and service excellence.