Cisco AIR-CT3504-150-K9 Full English Product Description

1. Short Official Part & License Label

AIR-CT3504-150-K9: Cisco 3504 Series Flagship Wireless LAN Controller, Factory Pre-Licensed for Maximum 150 Lightweight Aironet Access Points, Compact Desktop Chassis with Optional 1U Rack Mount Kit, 1×5G Multigigabit + 4×Gigabit Ethernet Ports (2 Ports Support IEEE 802.3at PoE), 4 Gbps Non-Blocking System Throughput, CUWN Unified Wireless Architecture, DNA-Ready, Optimized for 802.11a/b/g/n/ac Wave 2 APs, CleanAir RF Spectrum Intelligence, FlexConnect Local Switching, AVC Layer7 Application Control, Full AP+Client Stateful Switchover (SSO) HA, End-of-Sale Legacy Top-Tier Enterprise Branch & Campus WLC

2. Full Product Overview

The Cisco AIR-CT3504-150-K9 is the flagship maximum-capacity model within the discontinued Cisco 3504 wireless LAN controller family, designed for large multi-building enterprise branch campuses, regional retail headquarters, full K-12 and higher education satellite campuses, high-density hospitality venues and large-scale dense SMB offices that require full hardware-limit AP capacity without purchasing additional incremental AP licenses. As a core component of Cisco Unified Wireless Network (CUWN), it establishes DTLS encrypted CAPWAP tunnels to all joined thin Aironet access points to deliver unified RF orchestration, enterprise wireless security policy enforcement, seamless Layer 2/3 client mobility, VoWLAN voice QoS optimization, isolated guest access services, and embedded wireless intrusion prevention (wIPS).

This unit ships with a permanent built-in license supporting the full hardware maximum of 150 lightweight APs; no extra RTU AP adder licenses are required to reach the platform capacity ceiling. It features one Multigigabit port supporting up to 5Gbps plus four Gigabit Ethernet ports, with two ports providing IEEE 802.3at PoE power output to directly power connected APs and eliminate external PoE injectors for on-site deployments. Its PCI DSS validated architecture makes it suitable for retail environments running wireless POS payment terminals.

The entire Cisco 3504 platform reached Cisco End-of-Sale (EoS) on January 31, 2021, with End-of-Support (EoL) scheduled for January 31, 2027; all available inventory consists of surplus, used or certified refurbished hardware. It fully interoperates with all Aironet 1700/1800/2700/2800/3700/3800 Wave 1/2 lightweight access points. Administrators can configure standalone instances via local HTTPS web GUI, serial/SSH CLI, or centrally orchestrate multi-controller fleets through Cisco Prime Infrastructure. A key enterprise advantage over older 2500 Series WLCs: full Stateful Switchover (SSO) HA synchronizes both AP registration and active client sessions between redundant controllers for zero-drop failover without voice call interruptions.

Key Differentiator vs AIR-CT3504-8/25/50/100-K9: Pre-licensed for full hardware maximum of 150 APs out of factory, no additional AP license upgrades needed, optimized memory and session tables for high-density concurrent wireless clients and large-scale campus deployments.

3. Complete Hardware Physical & Interface Specifications

Form Factor & Mechanical

Base Form Factor: Compact desktop chassis; optional rack mount kit (AIR-CT3504-RMNT=) converts to standard 1U 19-inch rack unit
Dimensions: 43.94 mm (H) × 214.3 mm (W) × 215.9 mm (D) / 1.73 × 8.44 × 8.5 inches
Unit Weight: 4.4 lbs (2.0 kg) with external AC power adapter
Cooling: Single internal cooling fan for continuous stable operation
Power Supply: External universal AC power brick (PWR-3504-AC=)

Rear Panel Interface Layout

1× Multigigabit Ethernet port (1/2.5/5Gbps) + 4× 10/100/1000 Gigabit RJ45 ports (Ports 4 & 5 supply IEEE 802.3at PoE output for lightweight APs)
1× Dedicated 1G Service Port for isolated out-of-band management
1× Dedicated 1G Redundancy Port for SSO HA session synchronization
Dual console ports: RJ45 RS-232 serial console + mini-B USB console port for local CLI configuration and recovery
USB 3.0 port for local firmware upload, configuration backup and restore
DC power input jack for external AC power brick
Physical security lock slot for anti-theft cable attachment

Front Panel LED Indicators

Global status LEDs: Power, System Health, Critical Fault Alarm, Total Joined AP Count

Per-port Link/Activity LEDs for all Multigigabit, Gigabit, service and redundancy interfaces

Power & Environmental Parameters

Input AC Range: 100–240 VAC, 50/60 Hz universal external power supply
PoE Power Budget: Limited capacity to power up to two PoE-powered lightweight APs via ports 4 and 5
Maximum Power Consumption: 98 W with PoE fully loaded
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Storage Temperature: -20°C to 70°C (-4°F to 158°F)
Humidity: 5%–95% non-condensing (operation & storage)
Regulatory Certifications: UL 60950-1 safety, CE, FCC Class B EMC, ICES-003, VCCI

4. Official Capacity & Performance Benchmarks

Factory Licensed AP Count: 150 lightweight APs (hardware maximum capacity, no further expansion available)
Maximum Concurrent Wireless Client Stations: Up to 3,000 total across all managed APs
System-Wide Total Throughput Cap: 4 Gbps non-blocking Multigigabit switching capacity
Supported Unique WLAN SSIDs: Up to 512 broadcast/hidden SSIDs
Maximum VLAN Interfaces: Up to 4,096 802.1Q tagged VLANs
Max AP Groups for Segmented Policy Control: 500 independent AP groups
Max FlexConnect Remote Branch Groups: 100 groups (max 25 APs per group)
Roaming Capabilities: Intra-controller Layer 2 seamless roaming; Layer 3 inter-VLAN mobility; fast secure 802.11r roaming (supports 14,000 PMK cache roaming clients)
Supported Wireless Standards: 802.11a/b/g/n/ac Wave 2, WMM, 802.11k/r/u/w/h
Max Detected Rogue APs: 600; Max Rogue Wireless Clients: 1,500
Max RFID Tags Tracking: 1,500 tags for location-based wireless services
TLS/SSL Decryption Throughput: Up to 3 Gbps for bulk encrypted SaaS and web traffic

5. Core Wireless & Security Feature Suite

1. Centralized Lightweight AP Lifecycle Management

DTLS encrypted CAPWAP tunnel termination for all joined APs; zero-touch AP auto-discovery via DHCP Option 43; bulk AP firmware upgrades, unified RF configuration and global policy deployment across all managed access points. Supports FlexConnect local switching to reduce expensive WAN backhaul bandwidth consumption, enterprise wireless mesh networks, and OfficeExtend teleworker APs for secure remote home office wireless connectivity.

2. Cisco CleanAir Intelligent RF Spectrum Management

Continuous real-time 2.4GHz/5GHz RF interference monitoring, dynamic transmit power control, auto-channel assignment, wireless coverage hole detection, rogue AP detection, classification and active wireless containment, persistent historical RF reporting for capacity planning and wireless troubleshooting.

3. Enterprise-Grade Wireless Security Stack

Authentication: IEEE 802.1X EAP-TLS/PEAP/EAP-FAST, local internal user database, external RADIUS/TACACS+ AAA integration
Encryption Protocols: WEP, WPA2/WPA3-PSK/Enterprise (802.11i RSN), AES-CCMP, TKIP
Threat Mitigation: Built-in wIPS wireless intrusion prevention, rogue AP containment, wireless client isolation, MAC address filtering, dynamic VLAN assignment per SSID
Compliance: PCI DSS validated architecture for retail wireless POS payment deployments

4. Mobility, Voice & Video QoS

Wi-Fi Multimedia (WMM) traffic prioritization, Call Admission Control (CAC) for VoWLAN VoIP handsets, Cisco VideoStream multicast optimization for wireless IPTV, configurable bidirectional per-client bandwidth policing, fast secure roaming via 802.11r to eliminate voice call drops during client movement.

5. Application Visibility and Control (AVC)

Layer 7 deep application identification for thousands of enterprise, SaaS, social media and cloud applications; application-based traffic filtering, QoS marking, rate limiting and traffic reporting for granular policy optimization.

6. Guest Wireless Services

Isolated dedicated guest SSID segmentation, customizable web splash-page authentication, time-limited guest user access credentials, isolated guest VLANs to separate visitor traffic from internal corporate assets, guest anchor tunneling for multi-controller unified guest deployments.

7. High Availability & Link Aggregation

Active/Standby Stateful Switchover (SSO) HA with full AP and client session synchronization, zero service interruption during controller failure or hardware maintenance
N+1 controller redundancy supported for multi-controller load balancing
LAG EtherChannel link aggregation supported on all Multigigabit and Gigabit data ports for bandwidth aggregation and link redundancy

8. Multi-Mode Device Management & Logging

Local HTTPS web GUI for standalone monitoring and configuration
Command-line access via SSH v2, Telnet or RJ45 serial console
SNMP v1/v2c/v3 & RMON for third-party NMS monitoring integration
Secure persistent syslog export for security audit and event tracking
Centralized multi-controller orchestration via Cisco Prime Infrastructure

6. Typical Deployment Scenarios

Large enterprise remote campus core wireless security gateway utilizing full 150 AP hardware capacity
Multi-building K-12 and higher education unified wireless consolidation projects
Premium national retail headquarters wireless hubs with PCI DSS wireless POS compliance requirements
Medium-to-high density hospitality venues, hotels and resorts with large-scale wireless coverage
Large-scale SMB office wireless consolidation utilizing built-in PoE ports to eliminate external power injectors
IT lab training environments, legacy CUWN network upgrade staging and large-scale temporary event wireless networks
Distributed FlexConnect remote branch deployments leveraging local switching to reduce expensive WAN bandwidth consumption

7. Short Sales Listing Tagline

Cisco AIR-CT3504-150-K9 Legacy Compact Flagship Wireless LAN Controller, Factory Pre-Licensed for Hardware Max 150 Lightweight Aironet APs, 1×5G Multigigabit + 4×Gigabit Ethernet Ports with Dual 802.3at PoE Output, Desktop / Optional 1U Rack Mount, 4Gbps System Non-Blocking Throughput, CleanAir RF Spectrum Intelligence, FlexConnect Local Switching, AVC Layer7 Application Control, WPA2/WPA3 Enterprise Security, Full AP+Client SSO Stateful HA & LAG Support, Web GUI/SSH/SNMP/Cisco Prime Managed, EoS Top-Tier CUWN WLC for Large Enterprise Campuses & Regional Retail Headquarters Deployments


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