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          Cisco Catalyst 4948E 48x10 100 1000 + 4xSFP+ rack-mountable Managed Switch, Front to back cooling, no PSU

          More From: Cisco
          Item #: 19290052
          Mfr. Part#: WS-C4948E
          Availability: Temporarily Out-of-Stock
          Est. Ship: Call for next available delivery

          • 52 Ethernet, Fast Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet, IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1w (RSTP), IEEE 802.1S (MSTP), IEEE 802.3ad, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x Ports
          • Remote Management over RMON 1, RMON 2
          • Warranty: 1 Year

          Ordering Information

          The Cisco Catalyst 4948E Ethernet Switch is built from the start to deliver class-leading, full-featured server-access switching. The switch offers forty-eight 10/100/1000 Gbps RJ45 downlink ports and four 1/10 Gigabit Ethernet uplink ports and is designed to simplify data center architecture and operations by offering service provider-grade hardware and software in a one Rack Unit (1RU) form factor optimized for full-featured Top-of-Rack (ToR) data center deployments.

          The Cisco Catalyst 4948E, with its advanced multicast support, is optimized for multimedia applications. It supports Protocol Independent Multicast (PIM), Source-Specific Multicast (SSM), and Pragmatic General Multicast (PGM), providing end users with additional scalability to support multimedia applications. Also supported are Internet Group Management Protocol (IGMP) snooping and Multicast Listener Discovery (MLD) snooping in hardware, enhancing performance and reducing network traffic by allowing a switch to dynamically add and remove hosts from a multicast group.

          The Cisco Catalyst 4948E offers superior per-port QoS features to help ensure that network traffic is classified, prioritized, and scheduled optimally to efficiently manage bandwidth-intensive multimedia and time-sensitive and mission-critical applications. The Cisco Catalyst 4948E can classify, monitor, and mark incoming packets, allowing the administrator to differentiate traffic flows and enforce policies. Sharing, shaping, and strict-priority configurations determine scheduling of egress traffic.
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          Actual Weight 16.50 lb(s)
          # Ports 52
          Contents Switch, documentation
          Color Gray
          General Information SPECIFICATIONS:

          Switching Capacity: 136Gbps
          Throughput: 102Mpps
          Routes Supported: 32,000
          MAC Addresses: 55,000
          Per VLAN Spanning Tree Protocol and VLAN IDs: 4094
          Spanning Tree Protocol Instances: 4094
          Switched Virtual Interfaces (SVIs): 2000
          Active VLANs: 4094
          Multicast Routes: 28,000
          Security and QoS Hardware Entries: 32,000
          Switched Port Analyzer: 2 ingress, 4 egress


          Operating Temperature: 32 to 104 F (0 to 40 C)
          Storage Temperature: -40 to 167 F (-40 to 75 C)
          Relative Humidity: 10 to 90%, non-condensing
          Operating Altitude: -196 to 6561 ft. (-60 to 2000 m.)
          MTBF: 145,422 hours
          Memory Notes 666MHz CPU
          16MB Shared Buffer
          256MB SDRAM
          O/S Notes Cisco IOS Software Release 12.2(25)EWA or later
          Physical Dimensions 1.7"h x 17.3"w x 16.1"d
          Ports/Connectors (48) 10/100/1000
          (4) SFP+
          Power Notes Power Redundancy: 1+1, AC or DC
          AC Input Voltage: 90 to 264V AC
          DC Input Voltage: -40.5 to -72V DC
          Maximum Current:
          - AC: 4A at 120V AC,; 2A at 240V AC
          - DC: 8A at -48V DC
          Typical Operating Power at 77 F (25 C): 230W
          Maximum Power at 131 F (55 C): 275W
          Heat Dissipation:
          - AC Input: 1173 BTU/hour
          - DC Input: 1251 BTU/hour
          Networking Protocol 10 Gigabit Ethernet, Ethernet, Fast Ethernet, Gigabit Ethernet, IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1S (MSTP), IEEE 802.1w (RSTP), IEEE 802.1x, IEEE 802.3, IEEE 802.3ad, IEEE 802.3u
          Remote Management Protocol RMON 1, RMON 2
          Returns Policy Due to manufacturer restrictions, all sales on this item are final.
          Compliant Standards AS/NZS 3548 Class A, AS/NZS 60950, CAN/CSA C22.2 No. 60950-1, CE, CISPR 22 Class A, Directive 72/23/EEC, Directive 89/366/EEC, EN 50082-1, EN 55022 Class A, EN 55024, EN 60825-1, EN 60825-2, EN 60950-1, EN 61000-3-2, EN 61000-3-3, ETS 300 386, ETSI 300 019, FCC Class A certified, GR-1089-CORE, GR-63-CORE, ICES-003 Class A, IEC 60825-1, IEC 60825-2, IEC 60950-1, UL 60950-1, VCCI Class A
          UNSPSC 43222612
          Warranty - Labor 1 Year
          Warranty - Parts 1 Year
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          Battery Backup (UPS) (1 Product)
          Cables (4 Products)
          Fans & Cooling Systems (1 Product)
          KVM Displays & Accessories (1 Product)
          Racks & Cabinets (1 Product)
          Transceivers (3 Products)
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