Manufacturer’s Description

The Catalyst 4912G is a 12-port dedicated Gigabit Ethernet switch featuring high-performance Layer 2 switching and intelligent Cisco IOS network services for high-speed network aggregation. The Catalyst 4912G is the flagship product of the new Catalyst 4900 series, which delivers fixed configuration enterprise platforms providing cost-effective, high-performance solutions for Gigabit networking. The Catalyst 4912G switch provides an advanced enterprise switching solution delivering low-cost, high-density gigabit aggregation with modular Gigabit Interface Converter (GBIC) modular protection. The Catalyst 4912G switch provides intelligent Cisco IOS network services, capable of enhancing LAN scalability, multicasting, security, management and quality of service (QoS). The dedicated gigabit Catalyst 4912G leverages the same feature set with identical software code base and the same enterprise functionality as the Catalyst 5000 family, delivering a consistent end-to-end solution.

The Specs

More Info
Warranty Information 90 Day Limited
Additional Specifications
Parts Warranty (Not Applicable)
Labor Warranty (Not Applicable)
Installed Main Memory 64 MB
Frequency Band Item Included: Power Cord,110V (CAB-AC)Powerful wire-speed performance with 24 Gbps of dedicated bandwidth for nonblocking Gigabit Ethernet concentrationConsistent and mature Catalyst 5000 family software compatibilityFuture-proof bandwidth protection with broad Gigabit EtherChannel availabilityGBIC flexibility on fiber port interfaces covering a wide range of cabling distancesRedundant, hot-swappable external power supply (option) and other fault-tolerant featuresVirtual LANs (VLANs): 1,024Fabric: Store-and-ForwardQueues: Dual Queuing
UPC 746320203560
Number of GBIC Slots 12
normalized-Height 69.85
Geographic Localization (Not Specified)
Speeds Supported 1000
MAC Address Table Size 16 K
Fiber - ST (Straight Tip) (Not Applicable)
Technical Support URL
IBM Data Connector (Not Applicable)
Max Voltage 200 VAC
Technical Support Phone Number 800-553-2447
AUI/DIX-DB-15 Thick-Coaxial (Xbase-5) (Not Applicable)
Fibre Channel - DB-9 FC-AL Standard 9-pin D-shell (Not Applicable)
Connectivity Media Cable Twisted Pair
Installed Flash Memory 12 MB
Product Family Catalyst
Network Architecture Supported Gigabit Ethernet - 1000 Mbps (1000BaseTX)
Min Voltage 100 VAC
Fiber - FDDI MIC (Media Interface Connector) (Not Applicable)
Manufacturer Description Catalyst 4912G Gigabit Ethernet Switch
Number of Total Expansion Slots 12
Manufacturer Retail Type (Not Specified)
Fiber - SMA (Not Applicable)
Network Status Indicators Activity Status|Link Status|Management
Performance 24Gbps Backplane Speed
Input Current 1.30 A @ 240 V AC
Temperature -40F (-40C) to 167F (75C) Storage
Description Catalyst 4912G Gigabit Switch 1000BaseTX (12)RJ-45 Switch
Fibre Channel - HSSDC (High-Speed Serial Data) (Not Applicable)
normalized-Weight 208
Product Series 4500
RJ-11 4-pin Modular Plug (Phone/Telco) (Not Applicable)
Flash Power 16 K MAC Address -
Depth 15 in
RJ-45 Station (UTP Cabled) Modular Plug (Not Applicable)
Thermal Dissipation 640 BTU/h @ 189 W
ISDN - S/T Interface (Not Applicable)
Humidity 5% to 95% Non-condensing Relative Humidity Storage
Speeds Supported-Network 1000 Mbps
Product Model 4912G
Fiber - Biconic (Not Applicable)
Height 2.75 in
Manageable Yes
Width 17.5 in
Manufacturer Sku WS-C4912G
Port/Expansion Slot Details 12 x Gigabit Ethernet Expansion Slot
Management CiscoWorks 2000 Network Management Suite, Resource Manager Essentials includes: - Inventory Manager - Change Audit - Device Configuration Manager - Software Image Manager - Availability Manager - Syslog Analyzer - Cisco Management ConnectionCiscoWorks 2000 Network Management Suite, CiscoWorks for Switched Internetworks (CWSI) Campus includes: - Network topology discovery and display services - VLAN provisioning and logical display representation - Traffic monitoring and performance assessment - End-station tracking with search utilities - ATM and LANE service configuration and performance monitoring - CiscoView graphical device management - Network topology integrity checkingCisco Discovery ProtocolCisco Virtual Trunking Protocol (VTP)Simple Network Management Protocol (SNMP) agent v1SNMPv2cCisco workgroup Management Information Base (MIB)Ethernet MIBEthernet repeater MIBSNMP MIB IIRemote monitoring (RMON)Remote monitoring (RMON II)Interface tableBridge MIBSMT 7.3Switched Port Analyzer (SPAN)Enhanced Switched Port Analyzer (ESPAN)Port snooping and connection steeringText-based command-line interface based on the familiar Catalyst 5000 series interfaceStandard Cisco IOS security capabilities: passwords and TACACS+Telnet, Trivial File Transfer Protocol (TFTP), BOOTP for management access
Vendor CIS
Fiber - FC (Not Applicable)
BNC Thin-Coaxial (Xbase-2) (Not Applicable)
ISDN - U Interface (Not Applicable)
Brand Name Cisco
Product Line Series Model 4912G Gigabit Switch
Base Warranty 1 Year (12 Months)
Fiber - VF-45 (Not Specified)
DB-9 Station (STP Cabled) 9-pin D-shell (Not Applicable)
Case Pack Quantity 1
RJ-45 Twisted-Pair (Xbase-T) 12
Fiber - SC (Subscriber Connector) (Not Applicable)
Language Localization (Not Specified)
Redundant Power Supply Yes
Media Type Supported Twisted Pair
Management/Protocols Supported BOOTP (Bootstrap Protocol)|SNMP|Telnet|SMT
Product Line Catalyst
Altitude -196.84 ft to 13123.32 ft Operating
Category Switches
Type of Switch Ethernet Switch
Network OS Support (Not Specified)
Class Network Hardware
Dimensions 2.75" Height x 17.50" Width x 15" Depth
Weight 13 lbs
Quick Glance
Interfaces 1 x RJ-45 10Base-T Management|1 x RJ-45 Console Management

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