Cisco C9400-LC-48U Full Product Description

1. Short Overview

Suffix Breakdown

• C9400: Catalyst 9400 modular core/aggregation switch platform
• LC: Line Card modular copper access module
• 48: Total 48 front-facing RJ45 physical ports
• U: Cisco UPOE capable (max 60W per port; no 90W IEEE 802.3bt UPOE+, distinct from LC-48H / LC-48HN; compared to PoE-only LC-48P and data-only LC-48T)

Core Differentiators

1. vs C9400-LC-48P: LC-48P maxes at 30W PoE+; LC-48U adds Cisco UPOE up to 60W for medium-high power endpoints.
2. vs C9400-LC-48H / LC-48HN: LC-48U lacks 90W IEEE 802.3bt UPOE+ capability; LC-48H/HN support full 90W per-port power for ultra-high-power gear.
3. vs data-only C9400-LC-48T: LC-48U delivers multi-tier PoE/UPOE inline power, while LC-48T provides zero PoE output.
4. vs multigigabit LC-48UX/48HN: LC-48U only supports 1Gbps Gigabit copper, no 2.5G/5G multigigabit speeds.

2. Hardware & Bandwidth Specifications

Port & PoE Power Parameters

1. Port Count: 48 independent RJ45 ports, non-blocking full-duplex Gigabit Ethernet
2. Auto-negotiation speed: 10/100/1000 Mbps auto-sensing, full/half duplex
3. Cabling standard: Cat5e / Cat6 copper cabling, maximum 100-meter reach per port
4. Supported PoE Power Standards
   • IEEE 802.3af PoE: Up to 15.4W per port
   • IEEE 802.3at PoE+: Up to 30W per port
   • Cisco UPOE proprietary: Up to 60W per port (dual-pair power delivery)
   • Not compliant with IEEE 802.3bt Type 4 90W UPOE+
5. Line Card Aggregate PoE Budget: Maximum 1440W total power draw for all 48 ports simultaneously
6. Aggregate full-duplex non-blocking throughput: 48 Gbps bidirectional capacity for all ports wire-speed
7. Jumbo frame support: L2–L4 jumbo frames up to 9216 bytes for large file and video workloads

Built-In Hardware Acceleration

1. IEEE 802.1AE MACsec-256 port-level hardware encryption to secure wired access traffic
2. IEEE 1588v2 / 802.1AS PTP hardware timing for audio/video broadcast and industrial synchronization
3. Wire-speed L2/L3/L4 ACL filtering, QoS policing, NAT, full IPv4/IPv6 routing forwarding
4. IEEE 802.3az Energy Efficient Ethernet (EEE) to reduce idle port power consumption
5. Intelligent PoE management: Per-port power monitoring, priority power cut-off, cable loss compensation, CDP/LLDP power negotiation, emergency power prioritization

Physical & Power Parameters

• Form Factor: Standard full-width Catalyst 9400 line card, compatible with all empty line card slots of C9404R / C9407R / C9410R chassis
• Typical full-load power consumption: 240W (higher than LC-48P, lower than 90W UPOE+ LC-48H)
• Rated MTBF: 872,360 hours under nominal standard operating environment
• Asset tracking: Front-mounted passive UHF RFID tag for enterprise network asset lifecycle management
• Cooling: Passive multi-heatsink design, relies entirely on chassis side-to-side shared airflow; no independent onboard fan

Maximum Chassis Port Density (Fully Populated with LC-48U)

Supervisor Compatibility

3. Front Panel Layout & Status LEDs

1. 48 RJ45 port slots arranged in two horizontal rows (24 ports per row)
2. Per-port bi-color link/activity LED for each RJ45 port:
   • Solid Green: Valid link established, normal data & power operation
   • Blinking Green: Bidirectional data transmission/reception
   • Solid Amber: Link down, cable fault, powered device overload or PoE/UPOE fault alarm
3. Global module status indicators at card edge:
   • STATUS LED: Green = online fully operational; Amber = booting/initialization; Red = critical hardware failure
   • LOCATE blue beacon LED: Remotely activated to identify the line card during rack maintenance
4. Dual mechanical ejector latches on both sides to support OIR hot insertion/removal without full chassis power shutdown

4. IOS XE Full Software Feature Set

Layer 2 Campus Switching Functions

• IEEE 802.1Q VLAN trunking (4096 maximum VLANs), PVLAN private VLAN segmentation for multi-tenant isolation
• Cross-line-card LACP/PAGP EtherChannel link aggregation for redundant uplink trunks to core chassis
• RSTP/MSTP spanning tree suite with BPDU guard, root guard, loop guard and UplinkFast fast convergence
• DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard and MAC address port security
• IEEE 802.3az Energy Efficient Ethernet for idle port power reduction

Layer 3 & SD-Access EVPN Fabric Capabilities

• Hardware-accelerated IPv4 / IPv6 unicast & multicast routing (static routes, OSPF, EIGRP, BGP, IS-IS)
• Up to 32-way ECMP equal-cost multi-path uplink load balancing
• Native VXLAN EVPN data plane forwarding for Cisco SD-Access enterprise fabric access aggregation
• Anycast gateway, LISP host mobility and wired user overlay traffic segmentation
• Hardware VRF-lite multi-tenancy segmentation, supporting up to 1000 independent isolated VRF instances

Security & QoS Hardware Features

• 8 independent hardware priority queues per port, WRR/DRR congestion scheduling, traffic policing, marking and shaping
• L2/L3/L4 hardware ACL policy enforcement, CoPP control plane policing to protect supervisor CPU resources
• TrustSec SGT tag classification and end-to-end policy propagation across the entire enterprise fabric
• Encrypted Traffic Analytics (ETA) for hidden malware threat detection over wired user links
• IEEE 802.1X, MAB, WebAuth wired access authentication, AAA TACACS+/RADIUS/LDAP secure authentication

Automation, Programmability & Observability

• Model-driven programmability: NETCONF, RESTCONF, YANG standardized data models, REST API
• POAP zero-touch automated provisioning for mass campus wired access deployment
• Real-time streaming telemetry, IPFIX flow export, continuous port latency/buffer utilization & real-time PoE power consumption monitoring
• GOLD non-disruptive online diagnostic tests for ongoing line card hardware health inspection
• Full native integration with Cisco DNA Center single-pane-of-glass lifecycle management

5. Typical Deployment Scenarios

1. Medium-Density Wi-Fi 6 Wireless Access Point Aggregation
   60W Cisco UPOE power fully supports mid-tier Wi-Fi 6 APs with multiple radios, IoT sensors and built-in security cameras; cost-effective alternative to 90W UPOE+ line cards for non-ultra-high-power wireless fleets.
2. Enterprise PTZ IP Camera & Digital Signage Deployment
   Supports pan-tilt-zoom surveillance cameras and small-format digital signage requiring 30–60W power, eliminating separate wall power adapters for branch and campus security systems.
3. Smart Building & Industrial Medium-Power IoT Backbone
   Power access control readers, multi-sensor environmental gateways and lighting controllers that exceed 30W PoE+ limits; hardware QoS prioritizes low-latency industrial control traffic, TrustSec segmentation isolates IoT subnets from corporate user networks.
4. Medium & Large Office Unified Wired Access
   Combined power for desktop PCs, Cisco IP phones and medium-power wireless APs on a single line card, SD-Access VLAN segmentation separates voice, data and video traffic for unified enterprise access.
5. Education & Healthcare Branch Network Access
   Centralized PoE/UPOE power for classroom cameras, medical monitoring terminals and staff VoIP phones, centralized power and security policy management via Cisco DNA Center.

6. Standard Package Contents of C9400-LC-48U SKU

Separately Mandatory & Optional Add-On Components

1. Mandatory Accessories
   • Cat5e / Cat6 RJ45 patch cords for end-device connections
   • Catalyst 9400 series chassis, supervisors, power supplies and fan tray (sold independently)
2. Optional Accessories
   • Lockable front door for chassis port physical security
3. Software Licenses
   • DNA Advantage perpetual license for full SD-Access, advanced MACsec security, streaming telemetry and end-to-end automation feature set
   • DNA Essentials base license for fundamental Layer 2/Layer 3 switching functionality

Short Commercial Catalog Summary for Quotation