AIR-CT5520-K9 Overview
Cisco 5520 Series Wireless LAN Controller is a highly scalable, service-rich, resilient, and flexible platform that is ideal for medium-sized to large enterprise and campus deployments. AIR-CT5520-K9 can interoperable with other Cisco controllers and support Up to 1500 access points and 20000 clients with licenses.
Quick Specs
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 |
Product Details
Note?
| ? | Power button/power status LED | ? | Temperature status LED |
| ? | Locator (Unit identification) button LED | ? | Power supply status LED |
| ? | System status LED | ? | Network link activity LED |
| ? | Fan status LED | ? | KVM connector |
Network link activity LED indicates the network activity only on Service port, RP port, and CIMC port.
KVM connector used with KVM cable that provides two USB 2.0, one VGA, and one serial connector.
Note:
| ? | Two 1/10 G SFP/SFP+ Ports | ? | Redundancy Port (RP) |
| ? | Two Type A 3.0 USB ports | ? | VGA Connector |
| ? | CIMC port 10/100/1000 Base-T | ? | ID Switch and LED |
| ? | SerialCOM Connector—Standard RS-232 Serial COM port using RJ-45 connector | ? | Power Supply Slot |
| ? | Ethernet Service Port (SP)—Management 10/100/1000 Base-T | ? | Power Supply Slot |
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 |

























