3Com 4226T Getting Started Guide - Page 73
Switch 4250T (3C17302), Physical Dimensions, Environmental Requirements, Safety, Heat Dissipation
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Switch 4250T (3C17302) 73 Switch 4250T (3C17302) Physical Dimensions Environmental Requirements Operating Temperature Storage Temperature Operating Humidity Standards Safety Agency Certifications EMC Emissions Immunity Heat Dissipation Power Supply AC Line Frequency Input Voltage Current Rating Standards Supported Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.) Weight: 2.83 kg (6.23 lbs) 0 ° to 40 °C (32 ° to 104 °F) -40 ° to +70 °C (-40 ° to 158 °F) 10-95% relative humidity, non-condensing EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32. Operational testing: paras 2.1, 2.2, 2.30 and 2.13). UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950 CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A, ICES-003 Class A, AS/NZS 3548 Class A, VCCI Class A, CNS 13438 Class A, EN61000-3-2, EN61000-3-3 EN 55024 60 watts maximum (205 Btu/h maximum) 50/60 Hz 90-240 VAC 2.3 A (amps)(maximum) SNMP SNMP protocol (RFC 1157) MIB-II (RFC 1213) Bridge MIB (RFC 1493) RMON MIB II (RFC 2021) Remote Monitoring MIB (RFC 1757) MAU MIB (RFC 2239) Terminal Emulation Telnet (RFC 854) Protocols Used for Administration UDP (RFC 768) IP (RFC 791) ICMP (RFC 792) TCP (RFC 793) ARP (RFC 826) TFTP (RFC 783) DHCP (RFC 2131, RFC 2132, RFC 1534) BOOTP (RFC 951, RFC 1497)