Manufacturer 3Com
Manufacturer Part # 3CR17661-91-US
Device Type Switch - stackable
Form Factor External - 1U
Networking Ports Qty 24 x Ethernet 10Base-T, Ethernet 100Base-TX, Ethernet 1000Base-T
Data Transfer Rate 1 Gbps
Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet
Remote Management Protocol SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP
Connectivity Technology Wired
Communication Mode Half-duplex, full-duplex
Switching Protocol Ethernet
MAC Address Table Size 8K entries
Status Indicators n/ a
Features Full duplex capability, layer 2 switching, auto-negotiation, BOOTP support, VLAN support, auto-uplink ( auto MDI/ MDI-X) , IGMP snooping, Access Control List ( ACL) support
Compliant Standards IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad ( LACP) , IEEE 802.1w, IEEE 802.1x, IEEE 802.3ae, IEEE 802.1s
Expansion / Connectivity Expansion Slots Total ( Free) 4 ( 4 ) x SFP ( mini-GBIC)
2 ( 2 ) x XENPAK
Interfaces 1 x management - console
24 x network - Ethernet 10Base-T/ 100Base-TX/ 1000Base-T - RJ-451 x management - console - 9 pin D-Sub ( DB-9)
24 x network node - Ethernet 10Base-T/ 100Base-TX - RJ-45
2 x network host - Ethernet 10Base-T/ 100Base-TX/ 1000Base-T - RJ-45
Miscellaneous Compliant Standards FCC Class A certified, CISPR 22 Class A, EN 61000-3-2, IEC 61000-3-2, IEC 61000-3-3, VCCI Class A ITE, EN 61000-3-3, EN55024, EN55022 Class A, FCC Part 15, ICES-003 Class A, RoHS, UL 60950-1, IEC 60950-1, EN 60950-1
Power Power Device Power supply - internal
Voltage Required AC 120/ 230 V ( 50/ 60 Hz )
Power Consumption n/ a
Environmental Parameters Minimum Operating Temp 32 ° F
Maximum Operating Temp 104 ° F
Operating Humidity Range 10 - 95%