Cisco Systems 2955 User Manual

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Q & A
Cisco Catalyst
2955
 Series
Product Overview
Q. What is the Cisco Catalyst
®
 2955
Series?
A. The Cisco Catalyst 2955 Series is a
product line of industrial Fast Ethernet and
Gigabit Ethernet switches that are designed
for harsh environment applications, including
factory automation networks (Industrial
Ethernet), intelligent transportation
systems (ITS), and SCADA (Supervisory,
Control and Data Acquisition) systems
for utility companies, military systems
integrators, and other facilities or
applications where the environmental
conditions or suspended solid
concentrations exceed the specifications
of other commercial switching products.
The Cisco Catalyst 2955 Series delivers
intelligent services, such as high availability,
quality of service (QoS), and security to a
multitude of new Ethernet deployments
outside the traditional enterprise and
telecommunications markets. The Cisco
Catalyst 2955 Series is compliant with
standard industrial environmental ratings
and specifications.
Q. What are the configurations of the
Cisco Catalyst 2955 Series?
A. The Cisco Catalyst 2955 Series is
available in three configurations:
• Cisco Catalyst 2955C-12: Twelve
10/100 TX ports + two 100 Mbps
multimode fiber uplinks
• Cisco Catalyst 2955S-12: Twelve
10/100 TX ports + two 100 Mbps
single-mode fiber uplinks
• Cisco Catalyst 2955T-12: Twelve
10/100 TX ports + two 10/100/1000
TX uplinks
Q. How is the Cisco Catalyst 2955 Series
different from other Cisco Catalyst
offerings?
A. Based on the Cisco Catalyst 2950 Series
switch architecture, the Cisco Catalyst
2955 Series delivers intelligent services,
such as high-availability, QoS, and security,
to harsh environments.
Key Cisco Catalyst 2955 Series hardware
features are as follows:
• Dimensions (HxDxW): 3.75x5x8 in.
• Mounting: DIN rail and 19 in. rack
(with extenders)
• Power: 24V (DC power converter is
available)
• Dual power feeds for redundant power
cabling
• Operating temperature:–40
º
C to 60
º
C
• Use of extended temperature industrial
components
• Passive convection cooling (no fans)
• Relative humidity: 10 to 95%
(noncondensing)
• Shock and vibration: 50 g trapezoidal
shock/up to 500 Hz using
MIL-STD-810
• Two alarm relays
• Temperature sensor
• Environmental Management
Information Base (MIB)
• 32 MB RAM