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Cisco QSFP-DD 400G ZR+ High-Tx Power

Extend reach and compatibility in high insertion loss systems with better optical transmit power. Ideal for networks with legacy fiber or complex optical paths.

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Cisco QSFP-DD 400G ZR+ High-Tx Power
400G ZR+ High-Tx QSFP-DD Extended Reach High Power DWDM

Product Overview

High Transmit Power

Increased optical output power overcomes high insertion loss from legacy fiber, patch panels, and complex ROADM paths.

Extended Reach

Higher launch power extends achievable distance for ZR+ deployments over challenging fiber plants.

Multi-Rate Configurable

Software-configurable line rates from 100G to 400G for flexible deployment across varying link requirements.

QSFP-DD Form Factor

Standard pluggable form factor for deployment across Cisco routing and switching platforms.

Eliminates Transponders

Coherent optics in the router eliminate external transponder shelves, reducing equipment and operational cost.

Legacy Fiber Compatible

Designed for brownfield deployments where existing fiber infrastructure has higher loss characteristics.

Features and Benefits

High-power coherent optics for challenging fiber plants.

The 400G ZR+ High-Tx module delivers increased optical power to overcome insertion loss in legacy and complex optical networks.

Higher Launch Power

Increased transmit power provides additional link budget for high-loss optical paths.

Extended Distance

Reach further over existing fiber without replacing cables or adding amplifiers.

Enhanced FEC

Open FEC provides superior coding gain for reliable transmission at extended distances.

Flexible Line Rates

Configure 100G to 400G to optimize capacity and reach per link.

Feature & Benefit Details

Feature
Benefit
High transmit power
Overcomes high insertion loss from legacy fiber, patch panels, and complex ROADM paths.
ZR+ extended reach
OpenZR+ with enhanced FEC for regional and metro deployments over lossy fiber.
Multi-rate operation
Software-configurable 100G to 400G line rates for flexible capacity planning.
QSFP-DD pluggable
Standard form factor for broad platform compatibility and high port density.
Routed Optical Networking
Converge IP and optical layers to reduce equipment count and operational complexity.

Specifications

Optics

Form factorQSFP-DD
Data rate400G (multi-rate 100G-400G)
Tx powerHigh (enhanced output)
FECoFEC

Reach & Performance

ZR+ reachExtended (high-loss paths)
Modulation16-QAM / QPSK (configurable)
Wavelength gridC-band DWDM
ApplicationHigh insertion loss systems

Documentation

Data Sheet

Cisco QSFP-DD 400G ZR+ High-Tx Power Optical Module Data Sheet. Full specifications, supported platforms, and ordering information.

Download PDF ›

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Cisco 400G ZR+ High-Tx Power