The Cisco Catalyst 2955S-12 is a member of the Catalyst 2955 Series, and is an industrial-grade switch that provides Fast Ethernet and Gigabit Ethernet connectivity for deployment in harsh environments. With a range of copper and fiber uplink options, the Catalyst 2955 operates in environments such as industrial networking solutions (industrial Ethernet deployments), intelligent transportation systems (ITS), and transportation network solutions. It is also suitable for many military and utility market applications where the environmental conditions exceed the specifications of other commercial switching products.