Cisco 800 Gigabit QDD-8X100G-FR Transceiver

In today's fast-moving digital environment, network operators face mounting pressure from surging bandwidth demands driven by cloud services, remote work, and enterprise digitalization. To address these scaling challenges while managing operational costs, the telecommunications industry is moving toward converged network architectures.

Cisco accelerates this shift with its Routed Optical Networking strategy, placing coherent DWDM optics directly into routing and switching platforms. By removing traditional external transponder systems, organizations achieve lower capital costs, lower power usage, and simplified operational workflows.

At the center of this transition are Cisco's 400G QSFP-DD coherent optical modules, offering high-density, energy-efficient solutions for long-haul and metro data center interconnects that streamline modern network operations.

Product overview

Cisco provides a complete portfolio of 400G QSFP-DD coherent transceivers tailored for diverse optical networking requirements. This product family includes three primary models: DP-400G-ZR-S, DP-400G-ZR+, and DP-400G-BR-ZR+.

The Cisco DP-400G-ZR-S complies strictly with OIF 400ZR standards. It is optimized for high-capacity, point-to-point Data Center Interconnect (DCI) links up to 120 kilometers, providing a cost-effective, pluggable solution directly from router ports.

For broader transmission reach, the Cisco DP-400G-ZR+ utilizes OpenZR+ specifications to service metro and regional optical networks. It supports multi-rate configurations, including 100G, 200G, 300G, and 400G speeds, using flexible modulation formats such as QPSK, 8QAM, and 16QAM.

The Cisco DP-400G-BR-ZR+ is a high-power "Bright" optical transceiver designed specifically for legacy optical networks. Delivering +1 dBm transmit output power, it seamlessly interfaces with existing ROADM infrastructure without requiring extra transponders or external optical amplification.

Features and benefits

• Reduced Infrastructure Costs: Eliminates dedicated transponder hardware, significantly lowering equipment expenses and optical rack space usage.
• High Transmit Output Power: The DP-400G-BR-ZR+ delivers +1 dBm output, allowing direct deployment into existing ROADM and optical systems.
• Flexible Multi-Rate Operation: Supports 100G to 400G line rates to balance bandwidth needs and transmission reach effectively.
• Open Standards Compatibility: Fully compliant with OIF 400ZR and OpenZR+ standards, ensuring seamless multi-vendor interoperability.
• High-Density Form Factor: Compact QSFP-DD design maximizes switch and router port efficiency across enterprise and provider architectures.
• Streamlined Network Management: Integrates directly into Cisco IOS XR, providing unified optical visibility, simplified monitoring, and telemetry.
• Power Efficiency: Minimizes energy consumption per bit, driving down long-term operational costs and facility power requirements.