A-3
Catalyst 2955 Hardware Installation Guide
78-14944-03
Appendix A Technical Specifications
Table A-2 Fiber-Optic Port Specifications for the Catalyst 2955C-12 Switch
Fiber-Port Power Levels Catalyst 2955C-12 (100BASE-FX MM)
Optical transmitter wavelength 1300 nm
1
1. nm = nanometers
Optical receiver sensitivity for 50/125-micron cabling –33.5 to –11.8 dBm
2
2. dBm = decibel milliwatt
Optical receiver sensitivity for 62.5/125-micron cabling –33.5 to –11.8 dBm
Optical transmitter power for 50/125-micron cabling –23.5 to –14 dBm
Optical transmitter power for 62.5/125-micron cabling –20 to –14 dBm
Table A-3 Fiber-Optic Port Specifications for the Catalyst 2955S-12 Switch
Fiber-Port Power Levels Catalyst 2955S-12 (100BASE-LX SM
1
)
1. SM = single-mode fiber
Optical transmitter wavelength 1300 nm
2
2. nm = nanometer
Optical receiver sensitivity for 9/125-micron SM cabling –38 to –31 dBm
3
3. dBm = decibel milliwatt
Optical transmitter power for 9/125-micron cabling –15 to –8dBm
Table A-4 Catalyst 2955 Switch Agency Approvals
Safety EMC Hazardous Locations
UL 60950 FCC Part 15 Class A UL 1604 – Class I, Div 2 Group
A, B, C, D
CE ICES-003 Class A CSA 22.2/213 – Class I, Div 2
Group A, B, C, D
CAN 22.2 No. 60950 EN 55022: (CISPR22) Class A EN 50021 – Class I, Zone 2
UL 508 EN 55024 (CISPR24)
CB report to IEC 60950 AS/NZS CISPR 22 Class A
