3Com 4500G Series User manual

SWITCHING
DATA SHEET
OVERVIEW
The 3Com®Switch 4500G Gigabit amily delivers
flexible quad-speed performance—10/100/1000 and
10-Gigabit—and advanced voice-optimized features
such as Power over Ethernet (PoE) and auto-voice
VLAN and QoS. This makes the Switch 4500G ideal for
medium businesses and small enterprises seeking to
build a secure converged network.
KEY BENEFITS
MANAGED LAYER 2 AND LAYER 3 GIGABIT
CONNECTIVITY
Wirespeed Layer 2 Gigabit switching with dynamic
Layer 3 Gigabit routing make the Switch 4500G ideal
for wiring closet, workgroup and small core
connectivity requirements. In addition, four of the
ports are dual-personality, operating either as
10/100/1000 or S P-based fiber providing greater
flexibility. These switches also accommodate up to
four extra optional 10-Gigabit high-speed links,
enabling connectivity to a core network or to high-
performance servers.
SECURE
Enterprise-class security features include IEEE 802.1X
network login, SSH/SSL encrypted device login, and
Access Control Lists, protecting mission-critical
business applications.
VOICEREADY
Minimize the cost and complexity associated with
adding or moving IP telephones: the Switch 4500G
detects the presence of IP phones and dynamically
assigns switch ports to the voice VLAN, enabling
automated configuration and prioritization of Voice
over IP (VoIP) traffic. Optional PoE models provide
electrical power and data connectivity over a single
Ethernet cable—resulting in significant cost savings
when deploying these phones.
VARIETY OF MODELS
The Switch 4500G is available in four models,
clusterable in any combination up to thirty-two units:
› 3Com Switch 4500G 24-Port:
24 auto-negotiating 10BASE-T/100BASE-TX/
1000BASE-T ports, 4 of which are dual-personality
10/100/1000 or S P Gigabit; two 10-Gigabit dual-port
slots
› 3Com Switch 4500G 48-Port:
48 auto-negotiating 10BASE-T/100BASE-TX/
1000BASE-T ports, 4 of which are dual-personality
10/100/1000 or S P Gigabit; two 10-Gigabit dual-port
slots
› 3Com Switch 4500G 24-Port PWR:
24 auto-negotiating 10BASE-T/100BASE-TX/
1000BASE-T ports, 4 of which are dual-personality
10/100/1000 or S P Gigabit; two 10-Gigabit dual-port
slots; 10/100/1000 ports are PoE-enabled
› 3Com Switch 4500G 48-Port PWR:
48 auto-negotiating 10BASE-T/100BASE-TX/
1000BASE-T ports, 4 of which are dual-personality
10/100/1000 or S P Gigabit; two 10-Gigabit dual-port
slots; 10/100/1000 ports are PoE-enabled
3COM SWITCH 4500G
GIGABIT FAMILY
from top: 3Com Switch 4500G 24-Port, Switch 4500G 48-Port, Switch
4500G PWR 24-Port, Switch 4500G PWR 48-Port
High-performance, secure voice-ready
Gigabit connectivity, ideal for medium
businesses and small enterprises

INVESTMENT ROTECTION
10-Gigabit uplinks and robust IPv6 support future-
proof your network. These switches come with a
limited lifetime warranty covering the unit, power
supply and fan. Also provided is Advanced Hardware
Replacement, with next business day shipment
available in most regions, and telephone support and
limited lifetime software updates.
EM OWERS A LICATION CONVERGENCE
The Switch 4500G family combines high-performance
Gigabit switching, QoS and traffic management
features to help ensure essential applications get the
appropriate priority for efficient utilization of network
resources.
ENHANCES MANAGEMENT AND CONTROL
Easy to use and manage, the Switch 4500G is designed
to increase business productivity by reliably
supporting business applications. Cluster together up
to 32 devices for easy administration, with single IP
management across 3Com switching lines–with mixed
clusters of Switch 4210, 4200G, 4500G and Switch
5500 and Switch 5500G switches.
DELIVERS HIGH ERFORMANCE
The Switch 4500G family provides wirespeed
aggregate switching capacity of up to 176 Gbps and
131 Mpps performance on the 48-port model.
DYNAMIC LAYER 3 ROUTING
Easy-to-administer dynamic Layer 3 routing increases
performance and enhances network security.
ROBUST I V6 SU ORT
Internet Protocol version 6 (IPv6) is the successor to
today's IPv4, bringing many more IP addresses and
higher levels of security. The Switch 4500G supports
this important protocol, delivering IPv6 routing
features like RIPng as well as comprehensive IPv6
management capabilities.
REDUNDANT OWER SYSTEM SU ORT
The two 3Com Switch 4500G PWR models support a
redundant power system (RPS) connection.
RPS units provide these benefits:
› or PWR switches, an RPS can deliver more power
budget for IEEE 802.3af Power over Ethernet than
what the switches alone can provide. or example,
the Switch 4500G PWR 48-port switch has a PoE
power budget of 370 Watts, which means that
approximately half of the ports can provide the full
802.3af PoE power of 15.4 Watts. With an RPS provid-
ing power, all 48-ports can provide a full 15.4 Watts
of PoE power.
› They deliver redundant power to switches so there is
continued operation should the switch unit power
supply fail. This allows for continuous operation of
advanced Enterprise networks, particularly impor-
tant for converged networks running IP phones on
the network.
3Com H3C RPS Systems
3Com switches are compatible with 3Com H3C®RPS
solutions. These are enterprise-class power
redundancy systems that work with many 3Com fixed-
configuration switches. 3Com Corporation
manufactures networking equipment under the H3C
brand for sale into many markets.
The H3C RPS 1000 is 1U high and provides multiple
power output connections to support multiple switch
units at the same time. Two power rectifiers can be
installed for 1+1 load sharing and power redundancy.
It supports switches with -54V RPS connections, and
delivers sufficient power to fully provision all PoE
ports of a switch with full power redundancy.
23COM 4500G GIGABIT FAMILY
KEY BENEFITS (continued)
Switch 4500G, rear, with two modules

33COM 4500G GIGABIT FAMILY
FEATURE HIGHLIGHTS
FEATURE DESCRI TION
Layer 3 dynamic (RIP) routing Gives additional flexibility in deployment to boost network performance
Voice-ready networking Automatic prioritization of voice traffic, secure voice traffic with voice VLAN, and
Power over Ethernet models
IEEE 802.1X network access control Standards-based security combined with RADIUS authentication
RADIUS Authenticated Device Access Authentication of attached devices via MAC address for an additional level of
(RADA) endpoint security
Access Control Lists (ACLs) Enable usage policies at each point of access to the network via the switch
Bandwidth rate limiting and protocol Enforce controls on each port for efficient use of network resources and prioritization
filtering of delay-sensitive VoIP traffic
“Dual-personality” Gigabit Ethernet Choice of copper or fiber media for flexible uplinks
interfaces
Choice of 10G connections Plug-in modules give 10-Gigabit flexibility. Choose X P or S P+ interface types for fiber
links, or copper-based CX4 local connections
100 MB and 1000 MB fiber Use S Ps to add fiber connections to the network. Dual-speed support makes network
connections migration easier
Multicast filtering and Rapid Improve QoS, scalability and network availability
Spanning Tree protocol support
Secure management Authentication and encryption of management traffic via Secure Shell (SSH v2),
SSL/HTTPS, and SNMP v2
3Com Operating System Proven software featured in 3Com premium enterprise switches such as the Switch 8800,
7700, 5500, 5500G and 4200G families and enterprise routers like the Router 6000, 5000
and 3000 families
Service and Support Backed by 3Com Global Services and authorized partners with demonstrated expertise in
network assessment, implementation and maintenance
Switch 4500G 2-Port 10-Gigabit
Module (X P) (3C17766)

43COM 4500G GIGABIT FAMILY
MEDIUM LAN CONFIGURATION SU ORTED BY THE
SWITCH 4500G
3Com®3102
VoIPPhones3ComRouter5012
3ComNBX®V3001
3ComNBXV3000
Ethernet/FastEthernet
GigabitEthernet
10-GigabitEthernet
Internet
3ComSwitch4500G
3Com Switch5500G-EI
3CR17562-91SuperStack3Switch450050-Port
3CR17561-91SuperStack3Switch450026-Port
3CR17561-91SuperStack3Switch450026-Port
3CR17561-91SuperStack3Switch450026-Port
3CR17172-91SuperStack4Switch5500-EIPWR52-Port
3ComWireless7760
AccessPoint
Servers
PCsPCs
PDA/
VoWiFiPhone
Wireless
Laptops
PoweroverEthernet
In the above network, 3Com Switch 4500G and Switch 5500G-EI units are managed as a single cluster.
Warranty 3Com Limited Lifetime Warranty. or as long as the original end user owns the product,
or for five years after 3Com discontinues the of sale of the product, whichever occurs first.
Hardware coverage Covers the complete unit including power supply and fan.
In-warranty hardware replacement* Advanced Hardware Replacement of hardware for the duration of the warranty. In the US
48 contiguous states this is same-day ship with next business day delivery when call
received before noon Pacific time. or Canada, Alaska and Hawaii, this is same-day ship
when call received before noon Pacific time. or the rest of the world, it is next-business-
day ship. Actual delivery times may vary depending on customer location. Reasonable
commercial efforts apply.
Software coverage 90 days for media replacement.
Software updates* Access to releases with incremental software features and bug fixes. or the Switch
4500G, updates are all releases within the licensed 3Com OS software level.
Telephone support* Technical support via phone for 90 days.
Online Knowledgebase support* Access to online troubleshooting tool for the duration of the warranty.
* These services are not included as part of the Warranty and 3Com reserves the right to modify or cancel this offering at any time, without advance notice.
This offering is not available where prohibited by law. Services are effective at warranty start date, and are enabled with product registration. Customers
receive a user ID with eSupport registration.
RODUCT WARRANTY AND OTHER SERVICES

53COM 4500G GIGABIT FAMILY
Switch 4500G PWR 24-Port
(3CR17771-91)
SERVICE AND SU ORT
3Com Global Services offers the resources and talents
of a major corporation plus more than two decades of
experience in resolving network challenges and
delivering business benefits to enterprises around
the world.
Global support with a personalized focus in the local
language helps drive productivity and minimize
expenses. Because 3Com understands both the
technology and the business, we’re the partner you
need to maintain your competitive edge and remain
strong.
Additional Servi e, Support and Training Offerings
3Com GuardianSM Maintenan e Servi e
This service provides comprehensive on-site support and
includes advance hardware replacement, expedited telephone
technical support and software upgrades
3Com ExpressSM Maintenan e Servi e
This service provides speedy access to 3Com shipment of
advance hardware replacements (including a four-hour
option), expedited telephone technical support and software
upgrades
Network Health Che k
An activity-auditing service focused on improving network
performance and productivity
Includes traffic monitoring, utilization analysis, problem
identification, and asset deployment recommendations
Extensive report provides blueprint for action
Network Installation and Implementation Servi es
Experts set-up and configure equipment and integrate
technologies to maximize functionality and minimize business
disruption
or large and complex sites, implementation services include
personalized configuration, project management, extended
testing and coaching on network administration
Proje t Management
Provides extra focus and resources that special projects
demand
3Com engineers manage entire process from initial
specifications to post-project review
Using structured methodology, requirements are identified,
projects planned and progress of implementation activities
tracked
3Com University
Self-paced and instructor-led technology and product
courses, plus certification programs

63COM 4500G GIGABIT FAMILY
All information in this section is relevant to all members of the
3Com Switch 4500G, unless otherwise stated.
CONNECTORS
24-port
24 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports,
4 of which are dual-personality 10/100/1000 or S P Gigabit ports
48-port
48 auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T ports,
4 of which are dual-personality 10/100/1000 or S P Gigabit ports
WR models
IEEE 802.3af in-line power on all 10/100/1000 ports
Support for redundant supplemental power supply (-48 VDC) connector
PWR units with AC power have 370W available for PoE, at maximum 15.4W
per port.
All models
2 rear slots for dual-port 10-Gigabit modules, X P-based or CX4
local connection
RJ-45 console port
PERFORMANCE
24-port
128.0 Gbps switching capacity
95.2 Mpps forwarding rate
48-port
176.0 Gbps switching capacity
131.0 Mpps forwarding rate
All models
Wirespeed performance across ports
Store-and-forward switching; latency <10 µs
LAYER 2 SWITCHING
8,192 MAC addresses in address table
128 static MAC addresses (in addition to default address)
Jumbo rames support
4,094 Port-based VLANs (IEEE 802.1Q)
IEEE 802.3ad Link Aggregation
Control Protocol (LACP); automated and manual aggregation
GARP VLAN Registration Protocol (GVRP)
IEEE 802.1 Q-in-Q double-tagged VLANs
MAC-based VLANs using RADA auto-VLAN assignment
IEEE 802.1ag Service Layer Operations, Administration and Maintenance
(OAM)
12 trunk groups per switch
Auto-negotiation of port speed and duplex
IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)
Bridge Protocol Data Unit (BPDU) protection
Internet Group Management Protocol (IGMP v3) snooping on Layer 2
interfaces
iltering for 128 multicast groups
IPv6-ready hardware
LAYER 3 SWITCHING
IEEE 802.3x full-duplex flow control and back pressure
Half-duplex back pressure flow control
Unidirectional Link Detection (UDLD)
Broadcast, Multicast and Unicast traffic suppression
Spanning Tree root guard
Hardware based routing
64 static routes
Dynamic routing (RIP v2); 512 routes
64 virtual IP interfaces
DHCP snooping
DHCP querier (Layer 2)
DHCP tracker
CONVERGENCE
Eight hardware queues per port
Weighted Round Robin queuing
Strict Priority queuing
IEEE 802.1p Class of Service/Quality of Service (CoS/QoS) on egress
Ingress and egress rate limiting
Port-based traffic shaping
Application and protocol blocking
Auto VLAN assignment for voice traffic determined by vendor OUI
DiffServ Code Point (DSCP) priority/expedited remarking of packets
Wake-on-LAN support
IEEE 802.3af Power over Ethernet standards-compliant (PWR models)
SECURITY
IEEE 802.1X network login:
• EAP over LAN (EAPoL) transport with EAP-MD5, PAP,
CHAP, PEAP, and EAP-TLS authentication
• Multiple users per port
• 1024 max online users
TACACS+ network login
Local and RADIUS server authentication
RADIUS session accounting
Automatic VLAN assignment via RADIUS server
Wirespeed packet filtering in hardware
ACLs filter at Layers 2, 3 and 4:
• Source/destination MAC address
• Ethernet type
• Source/destination IP address
• Source/destination TCP port
• Source/destination UDP port
RADIUS Authenticated Device Access (RADA): authenticate devices based
on MAC address against RADIUS server, and assign VLAN
ID and ACL
Port-based MAC address Disconnect Unknown Device (DUD)
IEEE 802.1X user authentication of switch management on switch Telnet
and console sessions; four access privilege levels
Hierarchical management and password protection for
management interface
SNMP v3 encryption
SSH v2 secure CLI access
Secure TP
SSL/HTTPS secure web access
Denial of Service protection
Guest VLAN option
Multiple authentication server realm definitions
Centralized MAC address authentication
AAA authentication
RADIUS/TACACS+ session accounting
Combined MAC and IEEE 802.1X authentication on same port
Black-hole MAC addresses
DHCP Tracker
DHCP snooping, including DHCP Trust
Wirespeed packet filtering in hardware
ARP inspection and IP source guard
ARP spoofing prevention
Trusted management station IP and/or MAC address
Encoded Archival Description (EAD)
CLUSTERED STACKING
Single IP address and management interfaces for centralized control
Compatibility with 4210, 4200G, 4500, 4800G, 5500, 5500G clustering
Up to 255 devices per cluster
MANAGEMENT
CLI via console or Telnet
3Com Operating System / Comware V5
Embedded web management interface
System configuration with SNMP v1, 2c and 3
Comprehensive statistics, including ACL/QoS and IP interface
S ECIFICATIONS

73COM 4500G GIGABIT FAMILY
Remote Monitoring (RMON) groups statistics, history, alarm and events
Many-to-1 port mirroring
Detailed alarm and debug information
Syslog log-host
Configuration file for backup and restore; multiple configuration
files available
DHCP Relay and UDP Helper
System file transfer mechanisms: Xmodem, TP, Trivial TP (T TP),
Secure TP (S TP)
IPv4 management including ping, traceroute, TELNET, and remote ping
IPv6 management including pingv6, tracertv6, Telnetv6, T TPv6,
DNSv6 and ARPv6
IPv6 management interface IP address configuration
Supports multiple software images and bank swap, stored in
nonvolatile memory
Backup and restore of software images
Configuration file for backup and restore, stored in non-volatile memory;
multiple configuration files available
Remote port mirroring (RSPAN)
ront panel indicators for port and unit status information
Network Time Protocol (NTP)
DHCP Relay and UDP Helper
Device Link Detection Protocol (DLDP)
Link Layer Discovery Protocol (LLDP and LLDP-MED)
s low
Power alarms; fan and temperature alarms
Debugging information output
Port loopback detection
3Com management applications:
• 3Com Enterprise Management Suite for flexible, extensible
management in advanced enterprise IT environments
• 3Com Intelligent Management Center, Enterprise Edition for
comprehensive management with the rich functionality required to
meet the needs of advanced Enterprise networks
• 3Com Network Director for complete, turn-key network manage-
ment for the enterprise
• 3Com Network Supervisor for basic, turn-key network management
for mid-market businesses
• 3Com Network Access Manager for IEEE 802.1X and RADA
integration with IAS/Active Directory
• 3Com Switch Manager for virtual clustering support across 3Com
switch families
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 requency: 50/60 Hz
Input Voltage: 90-240 VAC
Current rating (AC)
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
ower consumption (max)
24-port: 58 W
48-port: 108 W
24-port PWR: 87 W, plus up to 370W PoE budget
48-port PWR: 133 W, plus up to 370W PoE budget
ENVIRONMENTAL REQUIREMENTS
Operating temperature: 0° to 40°C (32° to 104° )
Storage temperature: -10° to 70°C (14° to 158° )
Humidity (operating and storage): 10% to 95% non-condensing
Standard: EN 60068 (IEC 68)
HEAT DISSIPATION (MAX)
24-port: 196 BTU/hour
48-port: 369 BTU/hour
24-port PWR: 295 BTU/hour
48-port PWR: 454 BTU/hour
RELIABILITY
(MTB @ 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 ( ast Ethernet)
IEEE 802.3x ( low Control)
IEEE 802.3z (1000BASE-X)
RFC STANDARDS
R C 783 (T TP)
R C 791 (IP)
R C 793 (TCP)
R C 826 (ARP)
R C 951 (BootP)
R C 1157 (SNMP)
R C 1723 (RIP)
R C 2080 RIP for IPv6/RIPng
R C 2131 (DHCP client)
R C 2236 (IGMP Snooping)
R C 2284 (EAP over LAN)
R C 2452 IP Version 6 MIB for the Transmission Control Protocol
R C 2454 IP Version 6 MIB for the User Datagram Protocol/UDP6
R C 2460 IPv6 Specification
R C 2461 Neighbor Discovery for IPv6
R C 2462 IPv6 Stateless Address Autoconfiguration
R C 2463 ICMP & Path Discovery
R C 2464 Transmission of IPv6 over Ethernet
R C 2710 Multicast Listener Discovery (MLD) IPv6
R C 2767 Dual stacks IPv4 & IPv6
R C 2819 (RMON)
R C 3513 IPv6 Addressing Architecture
R C 3587 IPv6 Global Unicast Address
Management, including MIBs Supported
R C 1212 (Concise MIB definitions)
R C 1213/2233 (MIB II)
R C 1493 (Bridge MIB)
R C 1724 (RIP Version 2 MIB Extension)
R C 1907 (SNMP v2c, SMI v2 and Revised MIB-II)
R C 2021 (RMON II Probe Config MIB)
R C 2233 (Interfaces MIB)
R C 2571 (SNMP ramework)
R C 2572-2575 (SNMP)
S ECIFICATIONS (continued)

RC 2665 (EtherLike MIB)
R C 2667 (IP Tunnel MIB)
RC 2674 (VLAN MIB Extension)
R C 2737 (Entity MIB)
RC 2819 (RMON MIB)
EMISSIONS / AGENCY APPROVALS
EN 55022 :1998+A1:2000+A2:2003 Class A
CC 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
Limited Lifetime software updates
90 days of telephone technical support
Refer to www.3com.com/warranty for details.
3Com Switch 4500G 24-Port 3CR17761-91
3Com Switch 4500G 48-Port 3CR17762-91
3Com Switch 4500G PWR 24-Port 3CR17771-91
3Com Switch 4500G PWR 48-Port 3CR17772-91
MODULES
Switch 4500G 1-Port 10-Gigabit Module (X P) 3C17768
Switch 4500G 2-Port 10-Gigabit Module (X P) 3C17766
Switch 4500G 2-Port 10-Gigabit Module (S P+) 0231A98L
Switch 4500G 2-Port 10-Gigabit Local Connection Module 3C17767
GIGABIT SF TRANSCEIVERS
1000BASE-SX S P 3CS P91
1000BASE-LX S P 3CS P92
1000BASE-LH S P 3CS P97
FAST ETHERNET SF TRANSCEIVERS
100BASE- X S P (Dual-Mode) 3CS P9-81
100BASE-LX S P (Dual-Mode) 3CS P9-82
10GIGABIT XF TRANSCEIVERS
10GBASE-LR 0231A438 or 3CX P92
10GBASE-SR 0231A494 or 3CX P94
10GBASE-CX4 3CX P95
10GBASE-ER 0231A72X or 3CX P96
10GIGABIT SF + TRANSCEIVERS
10GBASE-LR 0231A0A8
10GBASE-SR 0231A0A6
10GBASE-LRM 0231A0A7
CABLES
CX4 Local Connection Cable – 50 cm 3C17775
CX4 Local Connection Cable – 100 cm 3C17776
CX4 Local Connection Cable – 300 cm 3C17777
3COM GLOBAL SERVICES
3Com Network Health Check, Installation Services and
Express Maintenance www.3com.com/services_quote
3Com University Courses www.3com.com/3comu
8 3COM 4500G GIGABIT FAMILY
3Com Corporation, Corporat H adquart rs, 350 Campus Driv , Marlborough, MA 01752-3064
3Com is publicly trad d on NASDAQ und r th symbol COMS.
Copyright © 2009 3Com Corporation. All rights r s rv d.
3Com and th 3Com logo ar r gist r d trad marks, and Guardian and Expr ss ar s rvic marks, of 3Com Corporation in various countri s worldwid . H3C is a
r gist r d trad mark of H3C T chnologi s Co., Ltd., a wholly own d subsidiary of 3Com Corporation. All oth r company and product nam s may b trad marks of
th ir r sp ctiv compani s. Whil v ry ffort is mad to nsur th information giv n is accurat , n ith r 3Com nor H3C acc pt liability for any rrors or mistak s
which may aris . All sp cifications ar subj ct to chang without notic . 401003-010 09/09
Visit www.3 om. om for more information about 3Com network solutions.
ORDERING INFORMATION
RODUCT DESCRI TION SKU RODUCT DESCRI TION SKU
S ECIFICATIONS (continued)