Nortel Networks DR4001A73E5 WLAN Security Switch

The Nortel Networks DR4001A73E5 WLAN Security Switch is a managed Layer 2 Ethernet switch in the ERS 2360 series that provides secure wired connectivity and Power over Ethernet for enterprise and industrial networks. It features eight 10/100Base-TX RJ-45 ports and six PoE ports, delivering 10/100 Mbps speeds while supplying power to PoE-enabled devices such as security cameras and wireless access points. Uplink ports are model dependent, and the unit is RoHS compliant with rack- or desktop-mounting options for flexible deployment in equipment racks, telecommunications rooms, security systems, or campus LANs. Designed for network expansion, infrastructure upgrades, and centralized device management, it is commonly used in enterprise and industrial networks, IP surveillance systems, VoIP deployments, and wireless AP installations. Common replacements include Nortel ERS 2500 Series, Avaya ERS 2500 Series, and Cisco Catalyst 2960.