Cisco Catalyst C1000-48T-4G-L - 48-Port Gigabit Managed Switch, 4x 1G SFP Uplinks, LAN Base - Refresh

The Cisco Catalyst C1000-48T-4G-L is a fixed managed Gigabit Ethernet enterprise-class Layer 2 switch designed for small businesses, branch offices, and out-of-the-wiring-closet IoT deployments. It delivers 48 x 10/100/1000 Ethernet (RJ-45) access ports plus 4 x 1 Gigabit Ethernet SFP uplinks for scalable aggregation, all running on Cisco IOS Software with the LAN Base feature set. Management is handled via CLI, an on-box web UI (Cisco Configuration Professional), or over-the-air through an optional Bluetooth USB dongle. As a Cisco Refresh certified remanufactured unit, this switch has been restored to like-new condition and is ready for immediate deployment.

Cisco Catalyst C1000-48T-4G-L - Key Features & Benefits

• 48 Gigabit Ethernet Access Ports + 4 SFP Uplinks: 48 x 10/100/1000 Ethernet (RJ-45) data ports plus 4 fixed 1 Gigabit Ethernet SFP uplinks for flexible aggregation and backbone connectivity. Delivers 104 Gbps switching capacity with a 77.38 Mpps forwarding rate at line rate.
• Cisco IOS Layer 2 Managed Switch — LAN Base Feature Set: Runs Cisco IOS Software with support for VLANs (256 active / 4094 IDs), RSTP, MSTP, PVRST+, LACP, PAgP, VTP, and sFlow network monitoring. Suitable for access-layer deployments in retail, hospitality, education, healthcare, and SMB networks.
• CLI, Web UI & Bluetooth Management: Configure via the Cisco IOS CLI over the RJ-45 console port, the on-box web UI through Cisco Configuration Professional, or over-the-air via an optional Bluetooth dongle plugged into the front USB Type-A port. SNMPv3, SSH v2, NTP, and TFTP are supported for secure centralized administration.
• Enterprise Security Features: 802.1X authentication with MAB and WebAuth, BPDU Guard, IP Source Guard, DHCP snooping, Dynamic ARP Inspection, IPv4/IPv6 ACLs, SPAN with offerirectional support, and TACACS+/RADIUS. Multidomain authentication allows IP phones and PCs to share a port across voice and data VLANs.
• 1RU Rack-Mount Form Factor with Jumbo Frame Support: Compact 1RU chassis (17.48 x 11.34 x 1.73 in) with a single fixed internal AC power supply, 16,000 MAC address table, and 10,240-byte jumbo Ethernet frame support. Includes an RJ-45 console port for out-of-band CLI access and a front USB Type-A port for file system access and Bluetooth-dongle management.

Cisco Catalyst C1000-48T-4G-L - Technical Specifications

• Manufacturer: Cisco
• Part Number: C1000-48T-4G-L
• Series & Type: Cisco Catalyst 1000 Series — Fixed Managed Gigabit Ethernet Layer 2 Switch (LAN Base, Cisco IOS)
• Access Ports: 48 x 10/100/1000 Ethernet (RJ-45), Data only — No PoE
• Uplink Ports: 4 x 1 Gigabit Ethernet SFP
• Switching Capacity: 104 Gbps
• Forwarding Rate: 77.38 Mpps (line rate, 64-byte packets)
• Memory & CPU: 512 MB DRAM • 256 MB Flash • ARM v7 800 MHz
• Capacity: 16,000 MAC addresses • 256 active VLANs • 4094 VLAN IDs • 10,240-byte jumbo frame
• Console & USB: 1 x RJ-45 console port (EIA/TIA-232) • 1 x USB Type-A (file system access; supports optional Bluetooth dongle for over-the-air management)
• Power Input: 100-240V AC, 50-60 Hz auto-ranging (single fixed internal PSU)
• Form Factor: 1RU rack-mount, fan-cooled (not a fanless model)
• Dimensions (W x D x H): 17.48 x 11.34 x 1.73 in (44.42 x 28.80 x 4.39 cm)
• Weight: 8.70 lbs (3.95 kg)
• Operating Temperature: −5°C to 45°C up to 5,000 ft (1500 m)
• Condition: Cisco Refresh — Certified Remanufactured

Cisco Catalyst C1000-48T-4G-L - Frequently Asked Questions (FAQ)

• What does the "Refresh" condition mean for this switch?
  This is a Cisco Refresh certified remanufactured unit — Cisco's official program for remanufactured equipment. The switch has been professionally inspected, cleaned, and restored to like-new functional condition with all features fully operational, and ships in new generic packaging ready for immediate deployment.
• How is this different from the C1000-48P-4G-L, C1000-48FP-4G-L, or C1000-48T-4X-L?
  The "T" indicates data ports only — this model has NO PoE/PoE+ output. The "P" variant supplies 370W of PoE+, and "FP" supplies 740W of PoE+. The "4G" suffix indicates 4 x 1 Gigabit SFP uplinks; the "4X" variants instead offer 4 x 10 Gigabit SFP+ uplinks.
• Does this switch require an external controller, subscription, or DNA license to operate?
  No. The Catalyst C1000-48T-4G-L operates as a standalone managed switch — no external controller, cloud subscription, or DNA/network license is required for operation. Cisco IOS runs locally with the included Catalyst 1000 feature set, and management is via CLI, web UI, or an optional Bluetooth dongle out of the box.

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