Cisco Catalyst 4503-E Switch

Specifications Overview


Supervisor Engine Slot Number1
23-inch Rack MountFront (option)
Dimensions (H x W x D)12.25 x 17.31 x 12.50 in. (31.12 x 43.97 x 31.70 cm)
Hot-Swappable PowerYes
Supervisor Engine RedundancyNo
Storage Temperature-40 to 167 F (-40 to 75 C)
AC External1400 + power shelf = 7500
Integrated Power over Ethernet (PoE)Yes
Power Over Ethernet PlusUp to 30W – 25 ports can be enabled @ 30W (after software upgrade on a premium line card)
Line Card Slot Speed48 Gbps, 24 Gbps, and 6 Gbps
Power Supply Bays2
PoE Plus (PoEP)Yes
Power Supply Bays2
Relative Humidity10 to 90% (non-condensing)
AC Internal6000W
Supervisor Engines SupportedSupervisor Engines 8-E, 7-E, 7L-E, 6-E, and 6L-E
19-inch Rack MountFront
Universal Power Over EthernetUp to 60W of UPOE
Weight32.25 lb (14.63 kg)
Enhanced Power over Ethernet (ePoE) SupportUp to 20W of PoE. 37 ports can be enabled
Minimum Number of Power Supplies1
Universal PoE (UPOE)Yes
Operating Temperature32 to 104 F (0 to 40 C)
MTBF1,064,279 hours
Maximum PoE per Slot1500 W
Fan Tray Bays1
1+1 Power Supply ProtectionYes
10 GE Fiber port density (including uplink)28
Operating Altitude-60 to 3000 meters
DC Internal1400 + UPS = 7500
Rack Units7RU
Line Card Slots2
Line Card SupportE-Series (requires E-Series chassis) and classic


  1. Cisco Catalyst 4503-E Switch
  2. Cisco Catalyst 4500 and 4500X Series Switches
  3. Cisco Catalyst 4500 and 4500X Series Switches Data Sheet