• UL 60950
• CAN/CSA-C22.2 No. 60950
• EN 60950
• IEC 60950
• TS 001
• AS/NZS 3260
• FCC Part 15 (CFR 47) Class A
• ICES-003 Class A
• EN55022 Class A
• CISPR22 Class A
• AS/NZS 3548 Class A
• VCCI Class A
• EN 55022
• EN 55024
• EN 61000-6-1
• EN 50082-1
• EN 61000-3-2
• EN 61000-3-3
• ETS 300 386
• GR-63-Core Network Equipment Building Standards (NEBS) Level 3
• GR-1089-Core Level 3
• EN 50121-4
• ETS 300 019 Storage Class 1.1
• ETS 300 019 Stationary Use Class 3.1

Cisco Catalyst 4500 Series Switches

The 6000W ACV and 4200W ACV power supplies feature combined Mode Power Resiliency as an extension of the traditional combined mode power-supply behavior. Each power supply contains two smaller power supplies (called subunits). In Combined Mode Power Resiliency the system relies only on power from three out of four power-supply subunits. When using 200 VAC this feature helps ensure that maximum power is available while the switch is protected against a single input power failure or subunit component failure.