Comprehensive Product Overview

The Cisco QSFP-100G-ZR4-S is a state-of-the-art, hot-pluggable Quad Small Form-Factor Pluggable 28 (QSFP28) transceiver module engineered to address the critical need for high-speed, long-reach 100G connectivity. It leverages four 25G optical lanes (LAN-WDM) operating at O-band wavelengths (1295/1300/1304/1309nm), which are combined and transmitted over a single pair of G.652 single-mode fiber.

A key technological advancement is its integrated Semiconductor Optical Amplifier (SOA), which compensates for signal attenuation, enabling an unprecedented 80km link without the need for external amplifiers or dispersion compensation equipment. This design drastically simplifies network architecture, reduces costs, and improves reliability for long-distance connections.

To maintain error-free transmission over such distances, the module requires the use of KR4-FEC (Forward Error Correction) on the host platform. It is fully tested and certified by Cisco to ensure flawless interoperability with a wide range of Cisco switches and routers. Featuring Digital Optical Monitoring (DOM), network administrators can remotely monitor real-time parameters such as transmit/receive power, temperature, and voltage, enabling proactive maintenance and troubleshooting.

Compliant with IEEE 802.3 standards and QSFP28 MSA specifications, this module is a cost-effective, high-density solution for modern data center interconnects (DCI), service provider backbones, and metro Ethernet networks.

Key Features & Business Benefits

Key Features

• 100G Long-Haul: 100GBASE-ZR4 for 80km SMF transmission.
• QSFP28 Form Factor: High-density, compact package for optimal port utilization.
• LAN-WDM Technology: Four wavelengths (1295/1300/1304/1309nm) for multiplexed transmission.
• Integrated SOA: Built-in optical amplifier for extended reach without external gear.
• Digital Optical Monitoring (DOM): Real-time diagnostics for proactive management.
• Hot-Pluggable: In-service installation and replacement.
• Low Power Operation: Max 5.5W power draw for energy efficiency.
• Standards Compliant: Fully compliant with IEEE 802.3, QSFP28 MSA, and RoHS.
• Cisco Certified: Guaranteed compatibility and performance with Cisco hardware.

Business Benefits

• Unmatched Reach: Extends 100G connectivity up to 80km, ideal for DCI and metro networks.
• Cost Savings: Eliminates need for external amplifiers, reducing CAPEX/OPEX.
• Simplified Network: All-in-one design reduces complexity and points of failure.
• Investment Protection: Future-proofs networks for long-distance 100G requirements.
• Operational Efficiency: DOM enables predictive maintenance and minimizes downtime.
• High Density: QSFP28 form factor maximizes port density in rack space.
• Guaranteed Interoperability: Cisco-tested for seamless integration into existing infrastructure.

Technical Specifications

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Ideal Application Scenarios

• Data Center Interconnect (DCI) over long distances
• Service Provider Metro & Regional Backbone Networks
• Enterprise Campus & Inter-Building High-Speed Links
• Cloud & Hyperscale Network Long-Haul Connections
• 5G Mobile Fronthaul / Backhaul
• High-Performance Computing (HPC) Clusters
• Financial Services & High-Frequency Trading Networks

Supported Cisco Platforms

• Cisco Catalyst 9000 Series Switches (9300X, 9400, 9500, 9600, 9800)
• Cisco Nexus 9000 Series Switches (9200, 9300, 9500, 9800)
• Cisco ASR 9000 Series Aggregation Services Routers
• Cisco NCS 5000 / 5500 Series Network Convergence Systems

Frequently Asked Questions (FAQ)

Q: What is the maximum distance supported by the QSFP-100G-ZR4-S?

A: It supports up to 80 kilometers over standard G.652 single-mode fiber.

Q: Is an external optical amplifier required for 80km links?

A: No, it features an integrated SOA (Semiconductor Optical Amplifier) that eliminates the need for external amplifiers.

Q: What type of fiber and connector is required?

A: It requires G.652 single-mode fiber (SMF) with a duplex LC connector.

Q: Is FEC necessary for this module?

A: Yes, KR4-FEC (Forward Error Correction) must be enabled on the host switch/router.

Q: Does this module support Digital Optical Monitoring (DOM)?

A: Yes, full DOM/DDM is supported for real-time monitoring of optical parameters.

Q: What is the difference between ZR4 and other 100G standards like LR4 or ER4?

A: ZR4 supports the longest reach (80km), compared to LR4 (10km) and ER4 (40km).