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Description
Cisco CWDM 1570-nm SFPCisco CWDM 1570 nm SFP Elevate your network with the Cisco CWDM 1570 nm SFP, a compact, high performance fiber optic transceiver designed to meet the demanding needs of metro, campus, and data center deployments. This 1 x 1000Base X SFP (mini GBIC) module delivers dependable gigabit Ethernet throughput over CWDM wavelengths, enabling scalable bandwidth without overhauling your existing fiber infrastructure. Crafted by Cisco, its built for seamless
Cisco CWDM 1570-nm SFP
Elevate your network with the Cisco CWDM 1570-nm SFP, a compact, high-performance fiber optic transceiver designed to meet the demanding needs of metro, campus, and data-center deployments. This 1 x 1000Base-X SFP (mini-GBIC) module delivers dependable gigabit Ethernet throughput over CWDM wavelengths, enabling scalable bandwidth without overhauling your existing fiber infrastructure. Crafted by Cisco, it’s built for seamless plug-and-play integration with Cisco switches and routers, helping you accelerate deployment, simplify management, and minimize downtime. The 1570 nm CWDM channel sits within the well-established C-band, delivering robust performance for long-reach links and dense link environments while supporting standard optical fiber cabling and LC duplex connectors for a clean, reliable fiber plant. Whether you’re upgrading an aging fiber link, extending a backbone, or interconnecting switches across a building or campus, this SFP module provides the performance, reliability, and compatibility needed to keep networks fast and resilient.
- High-speed 1 Gbps data transfer — The module supports 1000Base-X, delivering reliable Gigabit Ethernet performance over compatible fiber cabling. Perfect for uplink connections, inter-switch links, and data-intensive applications, ensuring smooth multi-user experiences, low-latency video, and fast data transfers across your network.
- CWDM 1570-nm wavelength — Operating at the 1570-nm CWDM wavelength, this transceiver optimizes spectral efficiency, enabling more channels over a single fiber strand. The 1570-nm channel is designed to provide robust performance in metropolitan backbones, campus networks, and service-provider deployments while maintaining strong tolerance to typical fiber losses and dispersion.
- Compact SFP (mini-GBIC) form factor — A standard Small Form-factor Pluggable module that slides into any compatible SFP port on Cisco Catalyst, Nexus, and other Cisco networking devices. The LC duplex optical connector supports easy fiber patching, simplifying installation and maintenance in dense equipment racks.
- Designed for Cisco devices and networks — Built by Cisco to meet exacting interoperability standards, this SFP integrates seamlessly with Cisco switching and routing platforms. Expect streamlined management through familiar Cisco IOS/IOS-XE interfaces, straightforward configuration, and reliable operation in mixed-vendor environments when used within established Cisco networks.
- Durable, enterprise-ready fiber solution — Engineered for reliability in demanding environments, the Cisco CWDM 1570-nm SFP combines robust optical performance with practical deployment features. It supports durable fiber cabling practices, resilience against common field conditions, and a stable link that contributes to higher uptime and consistent throughput.
Technical Details of Cisco CWDM 1570-nm SFP
- Transceiver type: SFP (Small Form-factor Pluggable) module
- Wavelength: 1570 nm CWDM channel
- Data rate: 1 Gbps (1000Base-X)
- Interface: 1 x 1000Base-X SFP; supports Gigabit Ethernet over fiber
- Connector: LC duplex (fiber optic) at the transceiver end
- Fiber type: Optical fiber cabling compatible with CWDM systems
- Form factor: SFP (mini-GBIC) for easy insertion into standard SFP ports
- Compatibility: Optimized for Cisco networking equipment (Catalyst, Nexus) with reliable interoperability within Cisco ecosystems
- Application: Ideal for metro/backbone links, campus interconnects, and data-center intra-building connections requiring scalable, fiber-based Gigabit Ethernet
How to install Cisco CWDM 1570-nm SFP
- Power down the device only if your network policy requires it; otherwise, prepare a compatible Cisco switch or router with an available SFP port.
- Identify a suitable SFP port on the Cisco device and remove any dust covers from the port if present.
- Carefully align the Cisco CWDM 1570-nm SFP with the SFP slot and insert it until it seats securely. Do not force the module; you should feel a gentle click when it’s properly seated.
- Attach a paired LC duplex fiber patch cable to the SFP’s LC duplex connector, ensuring correct polarity and clean, clean-terminated fiber ends. Connect the other end to the corresponding transceiver or optical distribution component in the link path.
- Power up the device (if required) and verify link activity on the SFP port LED. On Cisco devices, you can confirm operational status with the CLI or GUI (e.g., show interfaces status or show interfaces
). - Configure the interface as needed to enable the link, ensuring appropriate VLANs, spanning-tree settings, and any required QoS or routing configurations. If cross-vendor equipment is involved, verify compatibility and perform basic link tests to confirm stability and throughput.
- Document the installation details, including fiber type, length, and wavelength, to support future maintenance and troubleshooting.
Frequently asked questions
- What is the Cisco CWDM 1570-nm SFP? — It is a Cisco-branded CWDM SFP transceiver that provides 1 Gbps Ethernet connectivity via the 1570-nm CWDM wavelength, designed for use in Cisco switches and routers to extend fiber-based networks.
- What does 1000Base-X mean? — 1000Base-X refers to the Gigabit Ethernet standard over fiber, delivering up to 1 Gbps of data throughput per link when paired with a compatible receiver and optic fiber cabling.
- Which devices are compatible with this SFP? — This module is designed for use with Cisco networking equipment, including Catalyst and Nexus devices. While some third-party switches may support SFPs from various vendors, Cisco-branded modules are optimized for Cisco product interoperability and management.
- What kind of fiber cable do I need? — The SFP uses LC duplex connectors and is intended for optical fiber cables compatible with CWDM systems. Use appropriate CWDM-compatible fiber patch cords and ensure correct connector cleanliness for optimal performance.
- What advantages does the 1570-nm CWDM wavelength offer? — The 1570-nm CWDM channel is part of the commonly used C-band, enabling efficient use of fiber spectrum, reducing interference in multi-channel deployments, and supporting scalable metro and campus networks with reliable link budgets.
- How do I verify the link after installation? — Check the SFP port LEDs on the switch and run interface status commands in the Cisco CLI (for example, show interfaces status) to confirm the link is up and operating at the expected speed. If needed, perform basic traffic tests to validate throughput and latency.
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4.1 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Good buy
Format: Hardcover
This is a super cute book! It teaches about spring and we enjoy reading it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 5
"Racial Capitalism"
Format: Paperback
Cedric J. Robinson’s Black Marxism is first a history of Black people appearing in historical texts as far back as Herodotus (c. 484 – c. 425 BCE) in ancient Greece, and second a history of “the collisions of the Black and white ‘races’ beginning in the fifteenth and sixteenth centuries.” Robinson’s thesis connects the evolution of capitalism to its roots in racism (racialism) understood in broad terms to comprise the subjugation of one class/group/nation/race by another (the Irish by the English in the nineteenth century, for example). He uses the term “racial capitalism” to express this process—the necessity of opposing classes for the function of capitalism. As a result, “racialism,” he says, “would inevitably permeate the social structures emergent from capitalism.” Keynes attributed the slow change in the “standard of life of the average man” until the beginning of the eighteenth century to “the remarkable absence of important technical improvements and to the failure of capital to accumulate.” Capital is accumulated, in Marx’s view, through the accretion of “surplus labor” which is the extra time a worker “must add to the working time necessary for his own maintenance . . . in order to produce the means of subsistence for the owners of the means of production.” Robinson ties capitalism’s early exploitation of surplus labor to slave labor and the slave trade noting, “historically, slavery was a critical foundation for capitalism.” Robinson traces the forced transport of Black people from Africa (the diaspora) to Europe, as well as Central, South, and North America as a foundation of early capitalism (and slavery as its form of “primitive accumulation” of capital). In his discussions of slavery, Robinson stresses the sense of the enslaved people with respect to their captors in terms of the slaves’ resistance, hostility, and defiance of the masters—their “Black radicalism.” As Robinson’s text approaches the twentieth century and the influence of Marx, his focus narrows to the significance and character of specific Black leaders including W. E. B. Du Bois, C. L. R. James, and Richard Wright and their respective connections to Marxism’s diverse interpretations. Marxism, says Robinson, “has proven insufficiently radical to expose and root out the racialist order that contaminates its analytic and philosophic applications or to come to effective terms with the implications of its own class origins.”
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Reviewed in the United States on September 2, 2022
★★★★★ 5
Any socialist movement must centrally address racial liberation to succeed.
Format: Kindle
Robinson's masterwork powerfully demonstrates how the Black radical tradition emerged from the shared experiences of resistance to racial capitalism and colonialism. By tracing this intellectual and political lineage through figures like W.E.B. Du Bois, C.L.R. James, and Richard Wright, Robinson shows that Black liberation struggles were not simply an offshoot of European socialism, but represented their own distinctive radical tradition.
A key insight is how Black resistance movements developed theoretical frameworks and modes of struggle that went beyond traditional Marxist analysis. Where European Marxism focused primarily on class conflict within industrial capitalism, Black radical thinkers recognized that racial oppression was fundamental to how capitalism developed globally through colonialism and slavery. This more comprehensive analysis helped explain why racial liberation had to be central to any meaningful socialist transformation in the United States.
The book compellingly argues that Black liberation movements - from slave rebellions to civil rights to Black Power - represented some of the most significant challenges to American capitalism. These struggles exposed how racial oppression was not incidental but essential to American economic and social relations. By fighting for racial justice, these movements struck at the foundations of the capitalist order itself.
Robinson's updated edition strengthens these arguments by extending the analysis into more recent decades. He examines how Black radical politics evolved in response to neoliberalism and continued racial inequalities, while maintaining connections to earlier traditions of resistance.
For readers interested in both racial justice and socialist politics, this book remains invaluable for understanding how these struggles are fundamentally interconnected. It demonstrates why any socialist movement in the United States must centrally address racial liberation to succeed in transforming society.
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Reviewed in the United States on November 11, 2024
★★★★★ 5
A Classic That Requires Time
Format: Paperback
This book is for a particular type of reader. Robinson’s writing is beautiful, but not easy. The ideas are complex. It takes effort to get through. But, if you are interested in Black politics, and looking for fresh thinking, I recommend it highly.
The funny thing is, the title is misleading. It is more about Europe and the formation of capitalism, and what Robinson defines as The Black Radical Tradition. Marx is critiqued but not rejected, and held uneasily at arm’s length.
As Angela Davis wrote, this book needs to be read more than once. It’s like an album or a movie that is so unique and rich that you know you probably missed something on the first go-round. I expect to return to it many years to come.
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Reviewed in the United States on November 15, 2023
★★★★★ 5
Great condition
Format: Paperback
It came one day too late for Christmas, but that wasn't promised. Otherwise, it was received in great condition.
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Reviewed in the United States on January 1, 2022
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