3com Switch 4500G 24-Port 3CR17761-91-UK Data Sheet

3Com

®

Switch 4500G Gigabit Family

7

DIMENSIONS
Height: 43.6 mm (1.7 in or 1 RU)
Width: 440.0 mm (17.4 in)
Depth:
non-PWR: 300.0 mm (11.8 in)
PWR: 420.0 mm (16.5 in)
Weight:
24-port: 4.0 kg (8.8 lbs)
48-port: 4.5 kg (9.9 lbs)
24-port PWR: 6.0 kg (13.2 lbs)
48-port PWR: 6.5 kg (14.3 lbs)

POWER SUPPLY
AC Line Frequency: 50/60 Hz
Input Voltage: 90-240 VAC
Current Rating:
24-port: 1.5A
48-port: 2.0A
24-port PWR: AC 8.0A; DC 15.0A
48-port PWR: AC 8.0A; DC 18.0A

ENVIRONMENTAL REQUIREMENTS
Operating temperature: 0° to 40°C
(32° to 104°F)
Storage temperature: -10° to 70°C
(14° to 158°F)
Humidity (operating and storage):
10% to 95% non-condensing
Standard: EN 60068 (IEC 68)

RELIABILITY
(MTBF @ 25°C)
24-port: 46 years 
(401,000 hours)
48-port: 35 years 
(310,000 hours)
24-port: PWR: 41 years 
(362,000 hours)
48-port PWR: 28 years 
(245,000 hours)
2-port 10-Gigabit module: 371 years 
(3,255,000 hours)
2-port Local Connect module: 
1,798 years (15,758,000 hours)

IEEE STANDARDS SUPPORTED
IEEE 802.1D (STP)
IEEE 802.1p (CoS)
IEEE 802.1Q (VLANs)
IEEE 802.1w (RSTP)
IEEE 802.1X (Security)
IEEE 802.3 (Ethernet)
IEEE 802.3ab (1000BASE-T)
IEEE 802.3ad (Link Aggregation)
IEEE 802.3af (Power over Ethernet)
IEEE 802.3i (10BASE-T)
IEEE 802.3u (Fast Ethernet)
IEEE 802.3x (Flow Control)
IEEE 802.3z (1000BASE-X)

RFC STANDARDS
RFC 783 (TFTP)
RFC 791 (IP)
RFC 793 (TCP)
RFC 826 (ARP)
RFC 951 (BootP)
RFC 1157 (SNMP)
RFC 1723 (RIP)
RFC 2131 (DHCP client)
RFC 2236 (IGMP Snooping)
RFC 2284 (EAP over LAN)
RFC 2819 (RMON)

Management, including MIBs
Supported

RFC 1212 (Concise MIB definitions)
RFC 1213/2233 (MIB II)
RFC 1493 (Bridge MIB)
RFC 1724 (RIP Version 2 MIB
Extension)
RFC 1907 (SNMP v2c, SMI v2 and
Revised MIB-II)
RFC 2021 (RMON II Probe Config
MIB)
RFC 2233 (Interfaces MIB)
RFC 2571 (SNMP Framework)
RFC 2572-2575 (SNMP)
RFC 2665 (EtherLike MIB)
RFC 2667 (IP Tunnel MIB)
RFC 2668 (IEEE 802.3 MAU MIB)
RFC 2674 (VLAN MIB Extension)
RFC 2737 (Entity MIB)
RFC 2819 (RMON MIB)

EMISSIONS / AGENCY APPROVALS
EN 55022 :1998+A1:2000+A2:2003
Class A
FCC Part 15 :2004 Class A
ICES-003 :2004 Class A
VCCI :2004 Class A
CISPR 22 :2003 Class A
IEC 61000-3-2:2001/EN 61000-3-2
2000
IEC 61000-3-3:2002/EN 61000-3-
3:1995
+A1:2001
Korean EMI Class A
ETSI EN 300 386V1.3.3 :2005

IMMUNITY
EN 55024: 1998+A1:2001+A2:2003
ETSI EN 300 386 V1.3.3 :2005

SAFETY AGENCY CERTIFICATIONS
UL 60950-1:2003
EN 60950-1:2001
CSA 2.22 # 60950-1:2003
IEC 60950-1:2001
EU RoHS Compliant

WARRANTY AND OTHER SERVICES
Limited Lifetime Hardware Warranty,
including fans and power supply
Limited Software Warranty for 90 days 
Advance Hardware Replacement 
with Next Business Day shipment in
most regions
90 days of telephone technical support
Refer to 

for details.