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Cisco C1-AIR-CT5520-K9 5520 Enterprise Wireless Controller

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Cisco C1-AIR-CT5520-K9 is a 1U enterprise wireless controller with rack mounting kit, 20Gbps throughput, support for up to 1,500 access points and 20,000 clients, designed for scalable campus and branch WLAN management.

OVERVIEW

  • The Cisco C1-AIR-CT5520-K9 is the Cisco ONE version of the 5520 Wireless Controller, supplied with a rack mounting kit for enterprise data-center or network-room deployment. It combines high-scale AP management, 20Gbps throughput and resilient controller architecture for medium-to-large wireless environments. Compatibility: Cisco 5520 platform and supported Cisco wireless AP ecosystem. Model comparison: C1-AIR-CT5520-K9 is the Cisco ONE SKU; AIR-CT5520-K9 is the standard 5520 controller SKU. 

USE CASES

  • Large enterprise campus WLAN with centralized wireless control
  • High-density office networks requiring scalable AP management
  • Multi-floor corporate buildings with centralized WLAN policies
  • Branch networks using centralized or FlexConnect WLAN control
  • Education campuses requiring large-scale wireless connectivity
  • Healthcare networks requiring segmented enterprise WLAN access
  • Data-center network rooms hosting centralized wireless controllers
  • Retail environments requiring centrally managed branch connectivity
  • Existing Cisco WLAN environments needing controller replacement
  • Enterprise networks requiring high-capacity 10G controller uplinks
  • Wireless deployments requiring centralized RF optimization
  • Cisco infrastructure refresh projects requiring 5520 compatibility

KEY FEATURES

  • Supports up to 1,500 access points for WLAN growth
  • Handles up to 20,000 wireless clients at scale
  • 20Gbps throughput supports high-density enterprise WLANs
  • Dual 10G interfaces provide high-speed network uplinks
  • 1U rack design saves valuable equipment-room space
  • Rack mounting kit simplifies professional deployment
  • Centralized WLAN management reduces operational overhead
  • Auto-RF helps optimize wireless radio performance
  • Cisco CleanAir integration helps mitigate RF interference
  • Supports up to 4,096 VLANs for segmented networks
  • Supports up to 512 WLANs for diverse SSID requirements
  • 802.1X and RADIUS support strengthens access control
  • SNMP, GUI and CLI support centralized administration
  • FlexConnect supports distributed branch WLAN deployments
  • Redundant power options improve controller availability 

TECHNICAL SPECIFICATIONS

  • Brand: Cisco
  • Model: C1-AIR-CT5520-K9
  • Product Family: Cisco 5520 Wireless Controller
  • Product Type: Wireless LAN Controller
  • Product Series: Cisco 5520 Series
  • Product Name: Cisco ONE 5520 Wireless Controller
  • Controller Architecture: Centralized WLAN Controller
  • Form Factor: 1U Rack-Mountable
  • Mounting: Rack Mounting Kit Included
  • Maximum Access Points: Up to 1,500
  • Maximum Wireless Clients: Up to 20,000
  • Maximum Throughput: Up to 20 Gbps
  • Network Interfaces: 2 x 10 Gigabit Ethernet
  • Uplink Interface: SFP+
  • Gigabit Connectivity: 1G/10G Ethernet support
  • USB Connectivity: USB 2.0 Ports
  • Wireless Bands: 2.4 GHz and 5 GHz
  • WLAN Capacity: Up to 512 WLANs
  • VLAN Capacity: Up to 4,096 VLANs
  • RF Management: Auto-RF
  • RF Optimization: Cisco ClientLink
  • QoS: 802.11e WMM
  • Authentication: 802.1X
  • AAA Support: RADIUS
  • Wireless Security: WPA/WPA2
  • Management Interface: Web-Based GUI
  • Management CLI: Command-Line Interface
  • Network Management: SNMP
  • Remote Administration: SSH
  • Power Configuration: Redundant Power Support
  • Power Supply Design: 1+1 Redundancy
  • Deployment Model: Enterprise Campus and Branch WLAN
  • Branch Technology: FlexConnect Support
  • AP Management: Centralized Access Point Management
  • Network Segmentation: VLAN-Based
  • Compatibility: Cisco 5520-Supported Access Points
  • Operating Temperature: 0°C to 40°C
  • Storage Temperature: -20°C to 70°C
  • Operating Humidity: 10% to 95% Non-Condensing
  • Compliance: FCC, CE, UL, RoHS
  • Rack Deployment: Standard Network/Data Center Rack
  • Target Environment: Enterprise IT and Network Infrastructure
  • Management Method: Centralized Wireless Administration
  • Deployment Benefit: High-Density WLAN Scalability

WHY CHOOSE THIS PRODUCT?

  • High AP density: Manage up to 1,500 access points from a centralized controller, reducing the need for multiple controller platforms as WLAN deployments expand.
  • 20Gbps wireless capacity: Provides substantial controller throughput for high-density enterprise wireless traffic and business-critical applications.
  • 10G-ready uplinks: Dual 10G interfaces provide suitable high-bandwidth connectivity between the controller and wired network infrastructure.
  • Enterprise segmentation: Support for up to 4,096 VLANs enables large organizations to structure wireless access across departments, users and services.
  • Centralized administration: GUI, CLI and SNMP management give network teams multiple operational and monitoring methods.
  • Rack-ready deployment: The included mounting kit and 1U form factor simplify integration into standard network racks.
  • Established Cisco platform: Suitable for organizations operating Cisco wireless infrastructure and requiring a mature controller architecture.
  • Procurement consideration: As an end-of-sale platform, it can be relevant for replacement, expansion or like-for-like infrastructure requirements, subject to lifecycle verification.

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