Cisco WS-C3750-48PS-S Layer 3 PoE Catalyst Switch

Cisco WS-C3750-48PS-S Layer 3 PoE Catalyst Switch combines 48 PoE-enabled Gigabit Ethernet ports with enterprise-grade Layer 3 routing for access-layer deployments in campus and corporate networks. It provides 48 × 10/100/1000 PoE ports and 4 × SFP Gigabit uplinks, supporting IEEE 802.3af power delivery to wireless APs, IP phones, and surveillance cameras. With up to 32 Gbps of switching capacity and a forwarding rate of up to 38.7 Mpps, it handles dense traffic, and Cisco StackWise allows stacking for scalable, centralized management. The switch runs IP Base (latest supported Cisco IOS) with VLAN tagging via 802.1Q and supports security features such as 802.1X authentication, port security, and access control lists. Management is provided through CLI, SNMP, and Cisco network management tools, and the unit uses an internal AC power supply in a rack-mountable chassis. Common deployments include corporate offices, universities, healthcare facilities, and government buildings for connecting wireless access points, VoIP phones, cameras, and workstations with centralized management and VLAN segmentation. Common replacements include Cisco Catalyst WS-C3850-48P-S, C9200L-48P-4G-E, and C9300-48P-A.