Cisco WS-C3550-12G Brochure - Page 14

Feature Power Requirements Acoustic Noise Mean Time Between Failure (MTBF) Benefit • Power consumption: 190 W (maximum), 650 BTUs per hour (Catalyst 3550-12G and 3550-12T); 525W (maximum), 1790 BTUs per hour (Catalyst 3550-24 PWR); 65 W (maximum), 222 BTUs per hour (Catalyst 3550-24); 110 W (maximum), 375 BTUs per hour (Catalyst 3550-48); 72 W (maximum), 250 BTUs per hour (Catalyst3550-24-DC); 85 W (maximum), 290 BTUs per hour (Catalyst 3550-24-FX) • AC input voltage/frequency: 100 to 127/200 to 240 VAC (auto-ranging), 50 to 60 Hz • DC Input Voltages • RPS input +12V @ 13A (Catalyst 3550-12G, 3550-12T, and 3550-48); +12V @ 8.3A (Catalyst 3550-24 and 3550- 24-FX); +12V @ 7.5A and - 48V @ 7.8A (Catalyst 3550-24 PWR) • DC input for 3550-24-DC: -36 to 72VDC @ 2A • ISO 7770, bystander position operating to an ambient temperature of 30 degrees Celsius: - Catalyst 3550-12G and 3550-12T: 58 dBa - Catalyst 3550-24 and 3550-24-DC: 48 dBa - Catalyst 3550-48 and 3550-24-FX: 46 dBa - Catalyst 3550-24 PWR: 47 dBa • 110,332 hours (Catalyst 3550-12G) • 113,658 hours (Catalyst 3550-12T) • 166,356 hours (Catalyst 3550-24 PWR) • 193,000 hours (Catalyst 3550-24) • 163,000 hours (Catalyst 3550-48) • 183,000 hours (Catalyst 3550-24-DC) • 186,000 hours (Catalyst 3550-24-FX) REGULATORY AGENCY APPROVALS Safety Certifications Electromagnetic Emissions Certifications Network Equipment Building Systems (NEBS) (for Catalyst 3550-24-DC) • UL to UL 1950, Third Edition • c-UL to CAN/CSA 22.2 No. 950-95, Third Edition • TUV/GS to EN 60950 with Amendment A1-A4 and A11 • CB to IEC 60950 with all country deviations • NOM to NOM-019-SCFI • CE Marking • FCC Part 15 Class A • EN 55022 Class A (CISPR 22 Class A) • VCCI Class A • AS/NZS 3548 Class A • BSMI • CE Marking • Bellcore GR-1089-CORE GR-63-CORE SR-3580 Level 3 Warranty • Limited lifetime warranty © 2005 Cisco Systems, Inc. All rights reserved. Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.com. Page 14 of 18