Comprehensive Product Overview

The Cisco QSFP-100G-LR4-S is a hot-pluggable QSFP28 form-factor optical transceiver designed to meet the demands of modern high-bandwidth networking environments. Compliant with the IEEE 802.3 100GBASE-LR4 standard, it operates on four LAN WDM wavelengths (1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm) to achieve a total data rate of 100Gbps. This module supports link distances of up to 10 kilometers over standard G.652 single-mode fiber, making it a reliable solution for long-haul 100G Ethernet connections.

Built with advanced 4x25Gbps EML transmitter and PIN receiver technology, the QSFP-100G-LR4-S ensures stable signal transmission and low power consumption (max 3.5W). It features Digital Diagnostic Monitoring (DDM) for real-time performance monitoring, including optical power, temperature, and voltage, simplifying network management and troubleshooting. The module is fully compatible with a wide range of Cisco networking devices, including Nexus 9000 series switches, Catalyst 9000 series switches, and ASR 9000 series routers, ensuring seamless integration into existing Cisco infrastructures.

Key Features & Business Benefits

Key Features

• Hot-Pluggable QSFP28 Form Factor: Easy installation and replacement without powering down the host device, reducing network downtime.
• 100Gbps High-Speed Transmission: Supports 100GBASE-LR4 Ethernet, meeting the bandwidth requirements of data-intensive applications.
• 10km Long-Reach Connectivity: Transmits data up to 10km over G.652 SMF, ideal for inter-data center and campus network connections.
• Four LAN WDM Wavelengths: Operates on 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm wavelengths for efficient long-haul transmission.
• Digital Diagnostic Monitoring (DDM): Enables real-time monitoring of critical parameters, enhancing network visibility and maintenance.
• Low Power Consumption: Max power draw of 3.5W, optimizing energy efficiency in data centers and enterprise networks.
• Wide Compatibility: Fully interoperable with Cisco 100G switches, routers, and other networking equipment.
• Industrial-Grade Reliability: Compliant with RoHS, IEEE, and ITU-T standards, ensuring stable operation in commercial temperature ranges (0°C to 70°C).

Business Benefits

• Scalable Network Infrastructure: Facilitates the deployment of 100G Ethernet networks, supporting future bandwidth growth and digital transformation.
• Reduced Operational Costs: Low power consumption lowers energy bills, while hot-pluggable design minimizes maintenance time and labor costs.
• Enhanced Network Reliability: DDM functionality allows proactive monitoring and fault detection, reducing network outages and improving service availability.
• Seamless Integration: Compatibility with Cisco’s extensive product portfolio protects existing investments and simplifies network upgrades.
• Long-Distance Connectivity: 10km reach eliminates the need for costly signal repeaters in medium-haul network deployments.

Technical Specifications

Ideal Application Scenarios

• Data Center Interconnection (DCI): Connecting geographically dispersed data centers up to 10km apart with high-speed 100G links.
• Enterprise Core & Distribution Networks: Building high-bandwidth core layers for large enterprises, supporting mission-critical applications and user traffic.
• Campus Network Backbone: Establishing long-distance 100G connections between campus buildings and central network facilities.
• Service Provider Networks: Deploying 100G Ethernet links for metro and regional network deployments, delivering high-speed connectivity to customers.
• High-Performance Computing (HPC): Enabling fast data transfer between HPC clusters and storage systems, supporting compute-intensive workloads.
• Cloud Computing Infrastructure: Supporting the high-bandwidth requirements of cloud data centers, ensuring efficient resource allocation and user access.

Supported Accessories & Modules

Compatible Fiber Optic Cables

• Single-Mode Fiber (SMF): G.652D/G.657A1 OS2 fiber optic cables with duplex LC connectors, recommended for 10km transmission.
• Fiber Patch Cords: Cisco-approved LC-LC single-mode patch cords (e.g., SFP-10G-LR compatible patch cords) for module-to-fiber connections.

Compatible Cisco Networking Devices

• Nexus Switches: Nexus 9200, 9300, 9500 series switches (N9K-C93180YC-FX, N9K-C9504, etc.).
• Catalyst Switches: Catalyst 9300X, 9400X, 9600 series switches (C9300X-48HX, C9606R, etc.).
• Routers: ASR 9000, ASR 1000 series aggregation services routers (ASR-9001, ASR1006-X, etc.).
• Wireless Controllers: Catalyst 9800 series wireless LAN controllers (C9800-L-C, etc.).

Related Cisco Transceiver Modules

• QSFP-100G-SR4-S: Short-range 100G transceiver (100m over MMF) for data center intra-connections.
• QSFP-100G-PSM4-S: Parallel single-mode 100G transceiver for 500m SMF connections.
• QSFP-100G-LR-S: Single-wavelength 100G transceiver (10km over SMF) with PAM4 modulation.

Frequently Asked Questions (FAQ)

Q: What is the maximum transmission distance of the QSFP-100G-LR4-S?

A: The QSFP-100G-LR4-S supports data transmission up to 10 kilometers over standard G.652 single-mode fiber (SMF).

Q: Is the QSFP-100G-LR4-S hot-pluggable?

A: Yes, it features a hot-pluggable QSFP28 form factor, allowing installation and removal without powering off the host device.

Q: Does this module support Digital Diagnostic Monitoring (DDM)?

A: Yes, the QSFP-100G-LR4-S fully supports DDM, enabling real-time monitoring of optical power, temperature, voltage, and other critical parameters.

Q: What type of fiber cable is required for the QSFP-100G-LR4-S?

A: It requires duplex LC connectors and G.652D/G.657A1 OS2 single-mode fiber (SMF) for optimal 10km performance.

Q: Is the QSFP-100G-LR4-S compatible with non-Cisco networking devices?

A: While designed for Cisco infrastructure, it may interoperate with other vendor devices that support 100GBASE-LR4 QSFP28 transceivers; however, full compatibility is guaranteed with Cisco products.

Q: What is the power consumption of the QSFP-100G-LR4-S?

A: The module has a maximum power consumption of 3.5 watts, making it energy-efficient for data center and enterprise deployments.

Q: What is the operating temperature range of this module?

A: It operates reliably within a commercial temperature range of 0°C to 70°C (32°F to 158°F).

Q: Can the QSFP-100G-LR4-S be used for data center interconnection (DCI)?

A: Yes, its 10km reach and 100Gbps speed make it an ideal solution for connecting data centers over medium distances.