CISCO CATALYST 2950 Series Switches Hardware View

The Cisco Catalyst 2950 Series is a line of fixed-configuration, stackable, and standalone switches that provide wire-speed Fast Ethernet and Gigabit Ethernet connectivity. This product line offers two distinct sets of software features and a range of configurations to allow small, mid-sized, and enterprise branch offices, and industrial environments to select the right combination for the network edge. The Standard Image (SI) Software offers Cisco IOS functionality for basic data, video and voice services. For networks with requirements for additional security, advanced quality of service (QoS) and high availability, the Enhanced Image (EI) Software delivers intelligent services such as rate limiting and security filtering for deployment at the network edge.

WS-C2950-12



12 port, 10/100 auto-sensing and auto-negotiating Ethernet ports, Standard Image only.


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WS-C2950-24




24 port, 10/100 auto-sensing and auto-negotiating.


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WS-C2950T-24




24 port 10/100 switch w/2 fixed 10/100/1000BASE-T ports.


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WS-C2950C-24




24 10/100 port with 2 100BASE-FX uplinks.


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WS-C2950G-12-EI




Catalyst 2950G, 12 10/100 with 2 GBIC slots and Enhanced Image.


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WS-C2950G-24-EI / WS-C2950G-24-EI-DC




Catalyst 2950G, 24 10/100 with 2 GBIC slots and Enhanced Image.


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WS-C2950G-48-EI




Catalyst 2950G, 48 10/100 with 2 GBIC slots and Enhanced Image.


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WS-C2950T-48-SI




48 10/100 Ethernet ports and 2 10/100/1000 Ethernet ports, Standard Image only.


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WS-C2950SX-24




24 10/100 Ethernet ports and 2 1000Base-SX ports, Standard Image only..


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WS-C2950SX-48-SI




48 10/100 Ethernet ports and 2 1000Base-SX ports, Standard Image only.


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WSG5482 End Of Sale / WS-G5483





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WS-G5484




Cisco 1000BASE-SX GBIC. The Cisco 1000BASE-SX GBIC operates on ordinary multimode fiber (MMF) optic link spans up to 1815 feet (550 m) long. Cisco Optical GBIC Compatibility Matrix.


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WS-G5486




Cisco 1000BASE-LX/LH GBIC. The Cisco 1000BASE-LX/LH GBIC fully complies with the IEEE 802.3z 1000BASE-LX standard. However, its higher optical quality allows it to reach 6.2 miles (10 kilometers) over single-mode fiber (SMF), compared with the 3.1 miles (5 km) specified in the standard. Cisco Optical GBIC Compatibility Matrix.


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WS-G5487




Cisco 1000BASE-ZX GBIC. The Cisco 1000BASE-ZX GBIC operates on ordinary single-mode fiber optic link spans up to 43.4 miles (70 km) long. Link spans of up to 62 miles (100 km) are possible using premium single-mode fiber or dispersion shifted single-mode fiber. The GBIC provides an optical link budget of 23 dB-the precise link span length will depend on multiple factors such as fiber quality, number of splices, and connectors.
When shorter distances of single-mode fiber are used, it might be necessary to insert an in-line optical attenuator in the link to avoid overloading the receiver:

  • A 5-dB or 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the Cisco 1000BASE-ZX GBIC at each end of the link whenever the fiber-optic cable span is less than 15.5 miles (25 km).
Cisco Optical GBIC Compatibility Matrix.


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