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Home Networking Network Switches Switch Modules & Line Cards Cisco WS-X2971-XL ATM 155 SM Fiber Module | Medium Reach Uplink | Single-Mode SC Connector

Cisco WS-X2971-XL ATM 155 SM Fiber Module | Medium Reach Uplink | Single-Mode SC Connector

Cisco WS-X2971-XL ATM 155 SM Fiber Module | Medium Reach Uplink | Single-Mode SC Connector

Brand:

Cisco

Specifications

Product Overview:

The Cisco WS-X2971-XL is a high-performance ATM 155 Mbps single-mode fiber (SMF) uplink module designed to extend the capabilities of Cisco Catalyst 2900 XL Series switches. Featuring a standard SC connector, this module supports medium-reach ATM connectivity over single-mode fiber, making it ideal for enterprise backbones, campus-wide fiber links, and WAN connections requiring low latency, high throughput, and long-range reach.
Engineered for environments where reliability and scalability are paramount, the WS-X2971-XL adheres to ATM UNI 3.1/4.0 standards, supporting features such as Permanent Virtual Circuits (PVC) and ILMI (Interim Local Management Interface). This makes it a top choice for organizations running real-time services such as voice, video conferencing, and data over ATM.
Thanks to its plug-and-play form factor, the module is easily installed into any Catalyst 2900 XL switch, drawing power directly from the host chassis. With support for quality of service (QoS) and robust Layer 2 switching, it provides a future-ready solution for high-speed network integration across buildings or remote facilities.

Specifications:

Brand: Cisco
Model: WS-X2971-XL
Interface Type: ATM 155 Mbps over Single-Mode Fiber
Connector Type: SC Duplex (Single-Mode)
Wavelength: 1310 nm
Maximum Distance: Up to 15 km (Medium Reach over Single-Mode Fiber)
Data Rate: 155 Mbps (Asynchronous Transfer Mode)
Fiber Type Supported: Single-mode fiber (SMF) 9/125 µm
Compatibility: Cisco Catalyst 2900 XL Series switches
ATM Standards Supported: ATM UNI 3.1 and 4.0, ILMI (Interim Local Management Interface), PVC (Permanent Virtual Circuit)
VLAN Support: Integrates with Catalyst VLANs and ISL/802.1Q
QoS Support: Yes, supports prioritization for latency-sensitive traffic
Power Supply: Draws power from host switch
Form Factor: Plug-in module
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Weight: Approx. 0.4 kg

Features:

Provides 155 Mbps ATM over long-distance single-mode fiber (up to 15 km)
Medium-reach SC connector ideal for campus and inter-building fiber links
Supports QoS for voice, video, and critical data applications
Seamless integration with Catalyst 2900 XL Series switches
Conforms to ATM industry standards (UNI 3.1/4.0, ILMI, PVC)
Suitable for enterprise backbones and legacy ATM WANs
Easy plug-in installation — no external power required
Designed for high-reliability enterprise or service provider networks

Why Choose the Cisco WS-X2971-XL?

Extended Fiber Reach: Up to 15 km over single-mode fiber for flexible deployment across large facilities or campuses
ATM Backbone Compatibility: Ideal for organizations using ATM-based WANs or legacy infrastructure
Robust QoS Support: Prioritize mission-critical traffic such as VoIP and streaming video
Low-Latency Performance: Suited for real-time applications in high-demand networks
Cisco Reliability: Engineered with Cisco’s proven quality for enterprise environments
Seamless Integration: Designed specifically for Catalyst 2900 XL Series — install and connect in minutes

Features

Brand:

Cisco

Warranty:

1 Year

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