ERS 4524GT 24PT 10/100/1000 4PT SFP ROHS The Nortel Ethernet Routing Switch (ERS) 4524GT is a Gigabit Ethernet stackable, scalable and economical product that provides the resiliency, security and convergence-readiness required by application-driven and constantly changing enterprise networks. With 24 10/100/1000BaseT and 4 shared SFP ports, the ERS 4524GT is the ideal solution for high density Gigabit to the desktop deployments.