Cisco WS-C3550-48-SMI Switch - Cisco 3550

SKU: WS-C3550-48-SMI | MFG: Cisco
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Cisco Catalyst 3550 switch includes 48 x 10/100 Fast Ethernet Ports - 2 x GBIC Expansion Slots - Standard Multilayer Image
Finally, these refurbished WS-C3550-48-SMI Cisco 3550 switches make it easy to connect slower network devices to fast GigabitEthernet. It has 48 full duplex capable 10Base-T/100Base-TX ports for 10/100 devices like PC network cards and VoIP phones. What will really amaze you, however, is the addition of 2 GBIC ports for faster trunk speeds and better inter-node transfers.



These Cisco 3550 series switches are made for simplicity. They rely on standard IP-routing, ensuring that devices like VoIP phones will easily be able to communicate with each other. In addition to being compliant with various IEEE 802.1 and 802.3 standards, the WS-C3550-48-SMI can be managed using SNMP or RMON, even if the devices connected to it cannot. This ensures that you can build large networks with unique hardware yet still use whichever single administration administration method you favor.



The WS-C3550-48-SMI comes with 64 MB of integrated RAM and 16 MB of additional Flash Memory. In addition, it boasts 8K of open MAC addresses, which should be more than enough for most applications, even if you connect more devices via routers.



These WS-C3550-48-SMI Cisco 3550 switches come with bright LED panels that let you determine how well things are running. In addition to link activity, power and link status, you can view port transmission speed and port duplex mode. The nicest indicator here, however, has to be the one that lets you gauge the percentage of available bandwidth currently being used.



Cisco 3550 series switches like the WS-C3550-48-SMI were made for long-term reliability and efficiency. With a mean time of 163,000 hours between failures and an operational power consumption of 86 Watts via the built-in internal supply or optional redundant power system, this switch will keep your critical communication networks in business longer.

  • Software / System Requirements
    • Standard Multilayer Software Image (SMI)
  • General
    • 48 x 10/100 + 2 x GBIC
    • Switch - 48 ports - managed - stackable
    • Link activity, port transmission speed, port duplex mode, bandwidth utilization %, power, link OK
    • Rack-mountable - desktop - 1U
    • IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.1w, IEEE 802.1x
    • SNMP, RMON
    • 64 MB - integrated
    • LED panel
    • Full duplex capability, IP-routing, manageable, stackable
    • 8K entries
    • 16 MB flash
    • RADIUS, TACACS+
    • Fast Ethernet
  • Power
    • UL, cUL
    • AC 120/230 V ( 50/60 Hz )
    • Power supply - internal
    • 86 Watt
    • Redundant Power System (RPS) connector
  • Expansion / Connectivity
    • 48 x 10Base-T/100Base-TX - RJ-45 - 48 ¦ 1 x console - RJ-45 - 1 - management ¦ 2 x GBIC
  • Manufacturer Warranty
    • Limited warranty - parts and labor - lifetime - carry-in
    • Limited lifetime warranty
  • Miscellaneous
    • Serial adapter
    • FCC Class A certified, CSA, UL, TUV GS, BSMI, cUL, EN 60950, EN55022, NOM, VCCI Class A ITE
    • 16.3 in
    • 17.5 in
    • 13 lbs
    • 1.8 in
    • 163,000 hour(s)
  • MainSpecs
    • AC 120/230 V ( 50/60 Hz )
    • 16.3 in x 17.5 in x 1.8 in
    • 13 lbs
    • Switch - 48 ports - managed - stackable
    • Limited lifetime warranty
    • Full duplex capability, IP-routing, manageable, stackable
    • Cisco Catalyst 3550-48 SMI - switch - 48 ports - managed - desktop
    • 8K entries
    • 48 x 10/100 + 2 x GBIC
    • IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.1w, IEEE 802.1x
    • Desktop - 1U
    • SNMP, RMON
    • Fast Ethernet
  • Environmental Parameters
    • 10 - 85%
    • 113 °F
    • 32 °F
    • 9840 ft
  • Dimensions & Weight
    • 16.3 in
    • 13 lbs
    • 1.8 in
    • 17.5 in

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