Appendix A Technical specifications 181

Network protocol and standards compatibility

The following are protocols and standards used by the BayStack 420 Switch:

IEEE 802.3 10BASE-T (ISO/IEC 8802-3, Clause 14)

IEEE 802.3u 100BASE-TX (ISO/IEC 8802-3, Clause 25)

IEEE 802.1Q (VLAN Tagging)

IEEE 802.1z (Gigabit)

IEEE 802.1d (Spanning tree protocol)

Safety agency certification

The safety certifications follow for the BayStack 420 Switch:

UL Listed (UL 1950)

IEC 950/EN60950 (CB report) with all national deviations

C22.2 No. 950 (CUL)

UL-94-V1 flammability requirements for PC board

NOM (NOM-019)

Electromagnetic emissions

The electromagnetic emission standards for the BayStack 420 Switch:

US. CFR47, Part 15, Subpart B, Class A

Canada. ICES-003, Issue 2, Class A

Australia/New Zealand. AS/NZS 3548:1995, Class A

Japan. V-3/97.04:1997, Class A

Taiwan. CNS 13438, Class A

EN55022:1995, Class A

EN61000-3-2:1995

EN61000-3-3:1994

Using the BayStack 420 10/100/1000 Switch

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Nortel Networks 1000ASE-XD, 1000BASE-SX manual Network protocol and standards compatibility, Safety agency certification