Table Of Contents
Technical Specifications
Technical Specifications
Table A-1 lists the technical specifications for the Catalyst 2955 switches. Table A-2 and Table A-3 list the technical specifications for fiber-optic uplink ports. Table A-4 lists the regulatory agency approvals. Table A-5 lists the technical specifications for the Catalyst 2955 switch power converter. Table A-6 lists the regulatory agency approvals for the Catalyst 2955 switch power converter.
Table A-1 Technical Specifications for Catalyst 2955T-12, 2955C-12, and Catalyst 2955S-12 Switches
Environmental Ranges
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Operating temperature
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-40 to 140°F (-40 to 60°C)
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Storage temperature
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-40 to 185°F (-40 to 85°C)
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Operating humidity
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10 to 95% (noncondensing)
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Shock
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50 g at 11 ms
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Operating altitude
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Up to 10,000 ft (3000 m)
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Storage altitude
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Up to 30,000 ft (9000 m)
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Power Requirements
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DC input voltages
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24 V (18 minimum to 32 V maximum range)
Note  The DC-input power supply is an SELV circuit, and it can only be connected to another SELV circuit.
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Power consumption
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23 W (maximum)
102 BTUs per hour
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Physical Dimensions
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Weight
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3.1 lbs (1.4 kg)
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Dimensions
(W x D x H)
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8.07 x 5.03 x 3.75 in. (20.5 x 12.78 x 9.53 cm)
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Table A-2 Fiber-Optic Port Specifications for the Catalyst 2955C-12 Switch
Fiber-Port Power Levels
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Catalyst 2955C-12 (100BASE-FX MM)
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Optical transmitter wavelength
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1300 nm1
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Optical receiver sensitivity for 50/125-micron cabling
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-33.5 to -11.8 dBm2
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Optical receiver sensitivity for 62.5/125-micron cabling
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-33.5 to -11.8 dBm
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Optical transmitter power for 50/125-micron cabling
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-23.5 to -14 dBm
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Optical transmitter power for 62.5/125-micron cabling
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-20 to -14 dBm
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Table A-3 Fiber-Optic Port Specifications for the Catalyst 2955S-12 Switch
Fiber-Port Power Levels
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Catalyst 2955S-12 (100BASE-LX SM 1 )
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Optical transmitter wavelength
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1300 nm2
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Optical receiver sensitivity for 9/125-micron SM cabling
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-38 to -31 dBm3
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Optical transmitter power for 9/125-micron cabling
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-15 to -8 dBm
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Table A-4 Catalyst 2955 Switch Agency Approvals
Safety
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EMC
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Hazardous Locations
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UL 60950
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FCC Part 15 Class A
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UL 1604 - Class I, Div 2 Group A, B, C, D
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CE
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ICES-003 Class A
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CSA 22.2/213 - Class I, Div 2 Group A, B, C, D
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CAN 22.2 No. 60950
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EN 55022: (CISPR22) Class A
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EN 50021 - Class I, Zone 2
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UL 508
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EN 55024 (CISPR24)
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CB report to IEC 60950
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AS/NZS CISPR 22 Class A
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TUV GS mark to EN60950
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VCCI Class 1
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AS/NZS 3260
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CE
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NOM
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CNS 13438
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CSA 22.2/142
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BSMI Class A
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MIC Class A
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EN 61131-2
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EN 55011 (CISPR 11) Class A
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Table A-5 lists the technical specifications for the Catalyst 2955 switch power converter.
Table A-5 Technical Specifications for the Power Converter
Environmental Ranges
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Operating temperature
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14 to 140°F (-10 to 60°C)
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Storage temperature
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-13 to 185°F (-25 to 85°C)
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Operating altitude
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Up to 10,000 ft (3000 m)
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Storage altitude
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Up to 30,000 ft (9000 m)
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Thermal spacing
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0.39 in. (10 mm) sides
0.98 in. (25 mm) top and bottom
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Power Requirements
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Input voltages
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AC continuously 176-264 V (switch in 230 V position), 47-63 Hz
AC continuously 85-132 V (switch in 115 V position), 47-63 Hz
DC continuously 160-375 V (switch in 230 V position)
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Maximum AC power input current
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0.7 A @ 230 V
1.3 A @ 115 V
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Physical Dimensions
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Weight
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1.01 lbs (0.460 kg)
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Dimensions (W x D x H)
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1.97 x 4.05 x 4.92 in. (50 x 103 x 125 mm)
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Table A-6 lists the regulatory agency approvals for the Catalyst 2955 switch power converter.
Table A-6 Power Converter Agency Approvals
Safety
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EMC
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EN 60950
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EN 50081-1 and -2 (Emissions)
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EN 50178
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EN 50082-1 and -2 (Immunity)
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EN 55011
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VDE 0160/W2 (Transient protection)
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CB report to IEC 60950
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CE
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UL 60950 Recognition
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UL 508 Listing
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CSA 22.2 Number 950-M90
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