The Cisco 5520 Wireless Controller provides centralized control, management, and troubleshooting for high-scale deployments in service provider and large campus deployments. It offers flexibility to support multiple deployment modes in the same controller: for example, centralized mode for campus, Cisco FlexConnect™mode for lean branches managed over the WAN, and mesh (bridge) mode for deployments where full Ethernet cabling is unavailable. As a component of the Cisco Unified Wireless Network, this controller provides real-time communications between Cisco Aironet®access pointsand Cisco Catalyst®access points, the Cisco Prime®Infrastructure, and the Cisco Mobility Services Engine, and is interoperable with other Cisco controllers.
The Cisco Digital Network Architecture (Cisco DNA) is an open and extensible, software-driven architecture that accelerates and simplifies your enterprise network operations. The programmable architecture frees your IT staff from time-consuming, repetitive network configuration tasks so they can focus instead on innovation that positively transforms your business. SD-Access, as part of Cisco DNA, enables policy-based automation from edge to cloud with foundational capabilities. Cisco DNA Assurance, also part of Cisco DNA, provides a single source to monitor, modify, and manage your network and application data.
cisco 5520 wireless controller datasheet
Quick Specs
Figure 1 shows the appearance of AIR-CT5520-K9. There is a cover covering the front panel.
Table 1 shows the Quick Specs.
| Product Code | AIR-CT5520-K9 |
| Chassis Height | One rack-unit (1RU) |
| Throughput | 20 Gbps |
| AP Support | 1500 (with licenses) |
| Client Support | 20000 (with licenses) |
| Data Ports | 2 x SFP+ |
| Wireless standards | 802.11a/b/g/d/e/h/k/n/r/u/w/ac |
| Power Options | 770W AC |
| Dimension (D × W × H) | 75.8 cm × 42.9 cm × 4.3 cm |
The SFP Support
Table 2 shows some recommended SFP for this wireless controller.
| SFP | Description |
| SFP-10G-SR | 10GBASE-SR SFP Module |
| SFP-10G-LR | 10GBASE-LR SFP+ Module for SMF 10 Gbps |
| GLC-T | 1000BASE-T SFP |
| GLC-SX-MMD | Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM |
| SFP-H10GB-CU1M | Cisco Direct-Attach Twinax Copper Cable Assembly with SFP+ Connectors, SFP-H10GB-CU1M |
| SFP-H10GB-CU3M | Cisco Direct-Attach Twinax Copper Cable Assembly with SFP+ Connectors, SFP-H10GB-CU3M |
| SFP-H10GB-CU5M | SFP-H10GB-CU5M,5M Passive Copper Twinax Cable F, Nexus,24AWG cable assembly |
Compare to Similar Items
Table 3 shows the comparison of similar items.
| Models | AIR-CT5508-12-K9 | AIR-CT5520-K9 |
| Max Access Points | 500 | 1500 |
| Max Client Support | 7000 | 20000 |
| Ports | 8 x SFP | 2 x 1/10G SFP/SFP+ |
| Bundle | 12 access points licenses | None |
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