Cisco Systems, Inc. WS-C4948-E Network Switch

The Cisco Catalyst WS-C4948-E is a fixed, 1U Ethernet switch that offers 52 physical ports on the front panel: 48 RJ-45 ports supporting 10/100/1000BASE-T and four 1-Gbps SFP uplink ports for fiber connectivity. It runs Cisco’s Enterprise Services software image, historically including support for IPX and AppleTalk and providing routing capabilities such as OSPF, EIGRP, IS-IS, and BGP. The four SFP uplinks are shared with the last four RJ-45 ports, enabling flexible uplink configurations without additional hardware while maintaining wire‑speed performance on the downlink ports. This switch is designed for campus distribution and access layers where high port density and fiber connections to the core are needed, making it suitable for connecting desktops, IP phones, printers, and servers to a centralized core. It is powered by a single AC power supply and is part of Cisco’s Catalyst 4900-series lineage, a legacy enterprise switching platform that is still manageable via familiar Cisco IOS-style commands.