Cisco DS-SFP-FC32G-LW Compatible SFP28 32G Fibre Channel 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

Overview

The DS-SFP-FC32G-LW is a high-performance, cost-effective SFP28 transceiver module designed for 32G Fibre Channel (32GFC) applications. It provides a reliable, high-speed data link for up to 10 kilometers over standard single-mode fiber (SMF). This module is an essential component for building and expanding modern Storage Area Networks (SANs), connecting servers to storage arrays, and facilitating high-throughput data center interconnects.

Engineered to comply with SFP28 MSA (Multi-Source Agreement) standards, this hot-pluggable transceiver ensures seamless integration with a wide array of Fibre Channel switches, Host Bus Adapters (HBAs), and other storage networking equipment. It operates at a 1310nm wavelength and features a duplex LC connector. With built-in Digital Optical Monitoring (DOM), network administrators can monitor critical performance parameters in real-time, ensuring link stability and proactive maintenance.

Key Features

• High-Speed Data Rate: Supports 28.05 Gbps for 32G Fibre Channel (32GFC).
• Backward Compatibility: Auto-negotiates to support 16GFC and 8GFC data rates for flexible integration.
• Long Wavelength (LW): Utilizes a high-reliability 1310nm DFB laser for transmission.
• Extended Reach: Transmits data flawlessly up to 10km over Single-Mode Fiber (SMF).
• Standard Connector: Features a Duplex LC/UPC connector for industry-standard cabling.
• Digital Optical Monitoring (DOM): Provides real-time access to device operating parameters like temperature, laser bias, and optical power.
• Hot-Pluggable: Allows for installation and removal of the module without powering down the host device.
• MSA Compliant: Built to SFP28 MSA standards for broad equipment interoperability.

Applications

This transceiver is specifically designed for the demanding requirements of enterprise storage and high-performance computing environments. Its primary applications include:

• High-speed Storage Area Networks (SANs)
• Connections between Fibre Channel switches
• Server to storage array links (HBAs)
• Data center fabric and backbone interconnects
• High-performance computing (HPC) clusters

Specifications

Advantages

The DS-SFP-FC32G-LW module offers significant advantages for network architects and IT managers. It delivers the high bandwidth required for modern storage-intensive applications like virtualization, data backup, and video streaming, without the high cost of original manufacturer optics. Its backward compatibility with 16G and 8G Fibre Channel provides a smooth upgrade path for legacy SAN infrastructure, protecting existing investments while preparing for future growth. The inclusion of DOM functionality enhances network reliability by allowing for proactive monitoring and rapid troubleshooting of fiber links.

FAQ (Technical & Product Questions)

1. What is 32G Fibre Channel (32GFC)?

32GFC is a high-speed version of the Fibre Channel protocol that provides a data transfer rate of 28.05 Gbps. It is commonly used in enterprise Storage Area Networks (SANs) for its low latency and high reliability in connecting servers to shared storage devices.

2. Is this module backward compatible with older Fibre Channel speeds?

Yes, this transceiver supports auto-negotiation and is fully backward compatible with 16G Fibre Channel (16GFC) and 8G Fibre Channel (8GFC) speeds, making it a flexible choice for mixed-speed environments.

3. What does LW in the part number stand for?

LW stands for Long Wavelength. It indicates that the transceiver uses a laser in the 1310nm wavelength window, which is standardized for transmission distances up to 10 kilometers over single-mode fiber.

4. What type of equipment uses SFP28 Fibre Channel modules?

These modules are used in devices that support the SFP28 form factor and Fibre Channel protocol, such as high-port-density FC directors, SAN switches, and Host Bus Adapters (HBAs) installed in servers.

5. What is the difference between an SFP28 and an SFP+ module?

While SFP28 and SFP+ modules share the same physical form factor, SFP28 is designed for higher speeds, supporting up to 28 Gbps per lane. SFP+ modules are typically used for 10 Gbps applications. An SFP28 port can usually accept an SFP+ module, but not vice-versa.

6. Can I use this 32GFC module for a 25G Ethernet connection?

No. Although they use the same SFP28 form factor and similar speeds, Fibre Channel and Ethernet are different protocols. This module is specifically designed and firmware-locked for Fibre Channel operation and will not work for 25G Ethernet.

7. What fiber optic cable should I use with this transceiver?

To achieve the maximum 10km distance, you should use an OS1 or OS2 type Single-Mode Fiber (SMF) patch cable terminated with Duplex LC/UPC connectors.

8. Why is Digital Optical Monitoring (DOM) important for SANs?

DOM is crucial in a SAN environment because it allows administrators to monitor the health and performance of the physical fiber link in real-time. This helps in quickly identifying issues like failing lasers or high signal loss, preventing potential data corruption or downtime which are critical in storage networks.