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
•IEEE 802.3u
•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)
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•NOM
Electromagnetic emissions
•The electromagnetic emission standards for the BayStack 420 Switch:
•US. CFR47, Part 15, Subpart B, Class A
•Canada.
•Australia/New Zealand. AS/NZS 3548:1995, Class A
•Japan.
•Taiwan. CNS 13438, Class A
•EN55022:1995, Class A
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