Installation guide

Appendix A Technical Specifications

A-4

Catalyst 3550 Multilayer Switch Hardware Installation Guide

78-11358-06

Table A-5 Fiber-Port Specifications for Catalyst 3550-24-FX Switches

Fiber-Port Power Levels

Optical transmitter wavelength 1300 nm

1. nm = nanometers

Optical receiver sensitivity for 50/125-micron cabling –33.5 to –11.8 dBm

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-6 Catalyst 3550 Switch Agency Approvals

Safety EMC

UL to UL 60950, Third Edition FCC Part 15 Class A

c-UL to CAN/CSA -C22.2 No. 60950-00, Third Edition EN 55022 Class A (CISPR 22 Class A)

TUV/GS to EN 60950:2000 VCCI Class A

CB to IEC 60950 with all country deviations AS/NZS 3548 Class A

NOM to NOM-019-SCFI BSMI

CE Marking CE Marking

NEBS

1. Only Catalyst 3550-24-DC switch

EN55024

Bellcore GR-1089-CORE EN50082-1

Bellcore GR-63-CORE

Bellcore GR-1089-CORE