Detailed parameter table

Product introduction

The Cisco Catalyst C1000-48P-4G-L-RF represents a pinnacle of reliable networking solutions within Cisco’s Catalyst 1000 Series, tailored for small to medium enterprises demanding robust Layer 2 connectivity with Power over Ethernet (PoE) capabilities. This managed switch delivers 48 Gigabit Ethernet ports capable of PoE+ output up to 30W per port, complemented by four 1G SFP uplinks for flexible fiber or copper extensions, ensuring seamless integration into diverse network topologies. Positioned as an entry-level yet enterprise-grade device, the Cisco Catalyst C1000-48P-4G-L-RF excels in branch offices and campus edges, where it handles high-density device deployments like IP phones, wireless access points, and surveillance cameras without compromising performance. Its core functions encompass VLAN segmentation, Quality of Service (QoS) prioritization, and basic security features such as port security and storm control, all orchestrated through an intuitive web-based interface or CLI for streamlined administration.

Delving deeper, the Cisco Catalyst C1000-48P-4G-L-RF leverages Cisco’s IOS software foundation to provide advanced Layer 2 protocols including Spanning Tree Protocol (STP) variants and Link Layer Discovery Protocol (LLDP), fostering resilient topologies that adapt to failures in real-time. In automation systems, it plays a pivotal role by powering edge devices reliably, reducing cabling complexity through PoE, and enabling energy-efficient operations via scheduling and perpetual PoE during reboots. This switch’s value shines in cost-optimized environments, offering a switching capacity of 104 Gbps to support growing bandwidth needs while maintaining low latency for voice and video traffic. By embedding features like dynamic ARP inspection and DHCP snooping, the Cisco Catalyst C1000-48P-4G-L-RF fortifies networks against unauthorized access, aligning with compliance standards such as PCI DSS and HIPAA. Ultimately, it empowers IT teams to scale infrastructure affordably, delivering operational agility and future-proof connectivity that evolves with business demands.

Core advantages and technical highlights

Fanless Operation for Silent Efficiency: The Cisco Catalyst C1000-48P-4G-L-RF incorporates a fanless design that eliminates mechanical noise, generating just 36.1 dB of acoustic output even under load, making it perfect for noise-sensitive settings like open offices or control rooms. This thermal management approach, relying on passive cooling, extends component longevity and slashes maintenance needs, while the compact 1RU form factor fits snugly into standard racks without airflow obstructions.

Superior PoE+ Delivery with Intelligent Management: At the heart of the Cisco Catalyst C1000-48P-4G-L-RF lies a 370W PoE budget supporting IEEE 802.3at standards, allowing simultaneous powering of up to 24 full 30W devices without external injectors. Perpetual PoE ensures connected endpoints remain energized during firmware upgrades or power cycles, minimizing disruptions in mission-critical VoIP or PTZ camera arrays. Dynamic allocation algorithms prioritize power to high-priority ports based on traffic patterns, optimizing energy use and preventing overloads that could cascade into network blackouts.

High-Performance Layer 2 Intelligence: With a 104 Gbps switching fabric and 77.38 Mpps forwarding rate, the Cisco Catalyst C1000-48P-4G-L-RF processes packets at wire speed, even during multicast floods or jumbo frame handling up to 10K bytes. Advanced QoS mechanisms classify and queue traffic with eight levels of priority, ensuring low-jitter performance for real-time applications like industrial telemetry or unified communications. Integration of RMON I/II and SNMPv3 enables granular monitoring, where traps alert administrators to anomalies via email or syslog, facilitating proactive issue resolution before user impacts occur.

Broad Compatibility and Simplified Deployment: The Cisco Catalyst C1000-48P-4G-L-RF boasts versatile interfaces, including dual console options (RJ-45 and USB) for out-of-band management, alongside auto-MDI/MDIX for plug-and-play cabling. It supports a suite of interoperability standards like 802.1X RADIUS authentication and 802.3az Energy Efficient Ethernet, reducing operational costs by up to 50% through adaptive power scaling. Zero-touch provisioning via Cisco Network Plug and Play accelerates rollout, allowing remote configuration from a central dashboard, which is invaluable for distributed sites. Security enhancements, including ACLs and private VLANs, shield against lateral threats without taxing the ASIC-based forwarding engine.

Environmental Resilience and Sustainability: Engineered for demanding conditions, the Cisco Catalyst C1000-48P-4G-L-RF operates reliably from -5°C to 50°C with 90% humidity tolerance, and its recyclable chassis aligns with Cisco’s circular economy initiatives. Weighted power draw averages 41.64W, qualifying for ENERGY STAR ratings and lowering TCO in green-certified facilities. These facets converge to make the Cisco Catalyst C1000-48P-4G-L-RF a strategic enabler of digital transformation, blending performance, security, and eco-friendliness into a cohesive package that drives enterprise productivity.

Typical application scenarios

In branch office networking, the Cisco Catalyst C1000-48P-4G-L-RF anchors connectivity for hybrid workforces, powering desk phones and wireless APs across 48 ports while uplinks aggregate traffic to core routers. Under variable loads from video conferences and file shares, its QoS engine maintains call quality above MOS 4.0, and PoE scheduling dims unused ports overnight to cut energy bills by 20%. Retail chains deploy it in store backrooms to connect POS terminals and digital signage, where perpetual PoE keeps systems online during blackouts, ensuring transaction continuity and compliance with PCI standards amid peak holiday rushes.

Industrial edge environments harness the Cisco Catalyst C1000-48P-4G-L-RF for factory floor automation, linking PLCs and sensors in harsh zones with its wide temperature range preventing thermal throttling. In a typical automotive assembly line, it segments traffic via VLANs to isolate control signals from general IT, reducing latency to under 1ms for robotic synchronization and averting costly production halts. Chemical plants value its storm control to mitigate broadcast storms from misbehaving IoT devices, while LLDP-MED negotiates optimal settings for IP cameras monitoring hazardous areas, enhancing safety audits with timestamped event logs.

Educational campuses integrate the Cisco Catalyst C1000-48P-4G-L-RF in lecture halls to support dense student devices, with 802.1X securing guest access and dynamic power allocation favoring interactive whiteboards. During exam periods, its 104 Gbps capacity handles simultaneous streaming without bottlenecks, and USB console aids quick troubleshooting by on-site staff. For healthcare clinics, it powers telemedicine carts and nurse call systems, where HIPAA-compliant ACLs protect patient data flows, and energy-efficient modes align with sustainability goals, delivering reliable uptime that supports 24/7 patient care without infrastructure overhauls.

Related model recommendations

• C1000-24P-4G-L: Compact 24-port PoE+ variant in the same Catalyst 1000 series, ideal as a downsized companion to the C1000-48P-4G-L-RF for smaller wiring closets with similar management features.
• C1000-48T-4G-L: Non-PoE 48-port counterpart to the C1000-48P-4G-L-RF, serving as a cost-effective alternative for data-only deployments while sharing the same uplink and Layer 2 capabilities.
• C1000-48FP-4G-L: Higher-power 740W PoE model as an upgrade path from the C1000-48P-4G-L-RF, suited for Wi-Fi 6 APs requiring more budget in dense environments.
• C9300-48P-A: Stackable Catalyst 9300 series switch that extends the C1000-48P-4G-L-RF in larger enterprises, offering Layer 3 routing as a core aggregator.
• C1000-48P-4X-L: 10G SFP+ uplink version related to the C1000-48P-4G-L-RF, recommended for high-bandwidth uplinks in video surveillance backbones.
• IE-1000-8T-E: Industrial Ethernet variant compatible with the C1000-48P-4G-L-RF for rugged edge extensions, featuring wider temperature ranges for factory integrations.
• C1000FE-48T-4G-L: Fast Ethernet model in the FE subfamily, acting as a budget replacement for legacy setups alongside the C1000-48P-4G-L-RF.
• CBS350-48P-4G: Managed Business Series switch as a small-business peer to the C1000-48P-4G-L-RF, with simplified UI for easier entry-level PoE management.

Installation, commissioning and maintenance instructions

Installation preparation:

Before deploying the C1000-48P-4G-L-RF, secure a rack space in a ventilated area with ambient temperatures between -5°C and 50°C and humidity below 90% to optimize thermal performance. Gather rack-mount ears, #12-24 screws, a Phillips screwdriver, Ethernet testers, and the Cisco IOS image on a USB drive, while reviewing the quick start guide for firmware prerequisites. Precautions include grounding the chassis to prevent ESD damage, verifying AC outlet compatibility (110-220V auto-ranging), and labeling ports to avoid cross-connections—test PoE loads with a meter to confirm 370W availability, prioritizing safety by isolating power during initial mounting for efficient, error-free setup.

Maintenance suggestions:

Routine checks for the C1000-48P-4G-L-RF involve monthly scans via the web UI for port utilization and PoE draw, clearing dust from vents with compressed air to sustain airflow. Troubleshooting leverages show commands in CLI to diagnose link flaps, often resolved by cable swaps or STP reconfiguration; for persistent issues like high CPU, reload the module non-disruptively using redundant paths. Replacing SFP transceivers requires powering down affected uplinks, inserting compatible modules with a click-fit, and verifying via LED status—stock spares like power cords for swift swaps. Enhance longevity with quarterly firmware updates through TFTP and enabling EEE to trim idle power, ensuring the C1000-48P-4G-L-RF delivers consistent performance over its 5+ year lifecycle in dynamic networks.

Service and guarantee commitment

Cisco backs the Cisco Catalyst C1000-48P-4G-L-RF with a limited lifetime hardware warranty, encompassing defects in materials and workmanship to instill confidence from unboxing onward. This includes next-business-day advance replacement in eligible regions, minimizing downtime through rapid shipping of refurb units tested to factory specs. Our Smart Net Total Care support portfolio extends this with 24×7 TAC access, software updates, and hardware swaps, tailored for varying operational scales to keep your network resilient against evolving threats.

We further commit to sustainability via the Takeback program, recycling end-of-life Cisco Catalyst C1000-48P-4G-L-RF units at no cost, reflecting our dedication to ethical operations. Technical assistance encompasses configuration audits and best-practice consultations, empowering your team with Cisco Learning Network resources for self-sufficiency. This holistic approach underscores Cisco’s accountability, transforming potential vulnerabilities into fortified assets and ensuring the Cisco Catalyst C1000-48P-4G-L-RF propels your infrastructure toward enduring success.

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