Cisco Catalyst 3650-48PQ-S Switch - C3 - Managed - 48 x 10/100/1000

Cisco Catalyst 3650-48PQ-S Switch Overview

The Cisco Catalyst 3650-48PQ-S is a high‑performance, fully managed Layer 3 switch designed for enterprise and campus networks. With 48 PoE+ capable RJ‑45 ports and four 10 Gbps SFP+ uplinks, it delivers robust connectivity while supporting advanced routing, security, and quality‑of‑service features.

Key Physical Characteristics

• Form Factor: 1U rack‑mountable chassis, height 44 mm, depth 448 mm.
• Weight: 7.6 kg, making it lightweight for dense deployments.
• Colour: Classic black finish that blends with any data‑center or office environment.

Power and Energy Efficiency

• AC Input: 100 – 240 V, 50 – 60 Hz – global compatibility.
• Power Consumption: 102.1 W under typical load; the switch is engineered for low‑power operation without compromising performance.
• Total PoE Budget: 390 W across all 48 PoE+ ports, enabling deployment of high‑power devices such as IP cameras and wireless access points.
• Redundant Power Supply Support (RPS): Yes – ensures continuous operation in critical environments.

Memory and Storage Capacity

• Internal DRAM: 4 GB, providing ample space for routing tables, VLAN databases, and QoS policies.
• Flash Memory: 2 GB – sufficient for IOS images, configuration files, and diagnostics logs.

Networking Standards and Protocols

The switch supports an extensive array of IEEE standards, ensuring interoperability and advanced network functionality:

• IEEE 802.1D (Spanning Tree), 802.1Q (VLAN tagging), 802.1p (Priority‑based QoS)
• IEEE 802.1s (Multiple Spanning Tree Protocol), 802.1w (Rapid STP)
• IEEE 802.1x (Port‑Based Network Access Control)
• IEEE 802.3 series: 802.3ab (Gigabit Ethernet), 802.3af/at (PoE/PoE+), 802.3ad (Link Aggregation), 802.3u/x/z (Fast/Full Duplex, S‑FPGA).

Advanced Layer 3 Features

As a fully managed switch, it offers:

• Static and OSPF Routing: Enables efficient inter‑subnet communication.
• VLAN Support: Up to 4094 VLANs for segmentation and security isolation.
• DHCP Server: Built‑in DHCP service reduces the need for external servers.

Environmental Tolerances

• Operating Temperature Range: 5 °C to 70 °C (storage: –40 °C to +70 °C).
• Relative Humidity: 5 % to 96 % – suitable for most indoor data‑center conditions.
• Noise Level: 48 dB, ensuring a quiet operation in office or server‑room settings.

Reliability and Safety Certifications

The device meets stringent safety standards worldwide, guaranteeing safe operation across regions:

• UL 60950-1, EN 60950-1, IEC 60950-1, CAN/CSA‑C22.2 No. 60950‑1, GOST, NOM.

Performance and MTBF

The switch boasts a Mean Time Between Failures (MTBF) of 383,760 hours, reflecting Cisco’s commitment to durability and uptime in mission‑critical deployments.

Use Cases and Deployment Scenarios

• Campus Networks: The PoE+ budget supports a large number of wireless access points and security cameras across multiple buildings.
• Enterprise Core Layer: 10 Gbps SFP+ uplinks provide high‑bandwidth backhaul to aggregation or core switches.
• Data‑Center Edge: Managed routing, VLAN segmentation, and PoE support make it ideal for edge connectivity in data‑center environments.

Conclusion

The Cisco Catalyst 3650-48PQ-S combines robust Layer 3 routing, extensive PoE+ capabilities, and a comprehensive suite of networking standards into a compact, energy‑efficient chassis. Its high MTBF, redundant power support, and global safety certifications make it a reliable foundation for modern enterprise and campus networks.