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The Nortel Ethernet Routing Switch (ERS) 4500 Series is a stackable, scalable and economical product that provides the resiliency, security and convergence-readiness required by application-driven and constantly changing enterprise networks.

• Ethernet Routing Switch 4524GT
  The Nortel Ethernet Routing Switch (ERS) 4524GT delivers secure always on networking as part of the ERS 4500 product family being available with 24 10/100/1000 BaseTX and 4 shared SFP ports.
• Ethernet Routing Switch 4526FX
  The Nortel Ethernet Routing Switch (ERS) 4526FX delivers secure always on networking as part of the ERS 4500 product family being available with 24 100BaseFX ports plus 2 10/100/1000/SFP uplinks ports.
• Ethernet Routing Switch 4526GTX
  The Nortel Ethernet Routing Switch (ERS) 4526GTX delivers secure always on networking as part of the ERS 4500 product family being available with 24 10/100/1000 BaseTX ports and 4 shared SFP ports plus 2 10 Gigabit XFP slots.
• Ethernet Routing Switch 4526GTX-PWR
  The Nortel Ethernet Routing Switch (ERS) 4526GTX-PWR delivers secure always on networking as part of the ERS 4500 product family being available with 24 10/100/1000 802.3af PoE ports and 4 shared SFP ports plus 2 10 Gigabit XFP slots.
• Ethernet Routing Switch 4526T
  The Nortel Ethernet Routing Switch (ERS) 4526T delivers secure always on networking as part of the ERS 4500 product family being available with 24 10/100 BaseTX ports plus 2 10/100/1000/SFP uplinks ports.
• Ethernet Routing Switch 4526T-PWR
  The Nortel Ethernet Routing Switch (ERS) 4526T-PWR delivers secure always on networking as part of the ERS 4500 product family being available with 24 10/100 802.3af PoE ports plus 2 10/100/1000/SFP uplinks ports.
• Ethernet Routing Switch 4548GT
  The Nortel Ethernet Routing Switch (ERS) 4548GT delivers secure always on networking as part of the ERS 4500 product family being available with 48 10/100/1000 BaseTX ports and 4 shared SFP ports.
• Ethernet Routing Switch 4548GT-PWR
  The Nortel Ethernet Routing Switch (ERS) 4548GT-PWR delivers secure always on networking as part of the ERS 4500 product family being available with 48 10/100/1000 802.3af PoE ports and 4 shared SFP ports.
• Ethernet Routing Switch 4550T
  The Nortel Ethernet Routing Switch (ERS) 4550T delivers secure always on networking as part of the ERS 4500 product family being available with 48 10/100 BaseTX ports plus 2 10/100/1000/SFP uplinks ports.
• Ethernet Routing Switch 4550T-PWR
  The Nortel Ethernet Routing Switch (ERS) 4550T-PWR delivers secure always on networking as part of the ERS 4500 product family being available with 48 10/100 802.3af PoE ports plus 2 10/100/1000/SFP uplinks ports.