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74 APPENDIX C: TECHNICAL SPECIFICATIONS
Heat Dissipation Switch 4900:1050 BTU/hour maximum
Switch 4900 SX: 560 BTU/hour maximum
Switch 4924: 870 BTU/hour maximum
Switch 4950: 685 BTU/hour maximum
Power Supply
AC Line Frequency 50/60 Hz
Input Voltage Options 90–240 VAC
Current Rating Switch 4900: 4 A (amps) (maximum)
Switch 4900 SX: 3 A (amps) (maximum)
Switch 4924 and 4950: 4.5 A (amps) (maximum)
Standards Supported 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)
IGMP (RFC 1112 & 2236)
RADIUS (RFC 2865, 1321, & 2869)
RMON: (RFC 2819)