3Com Unified Gigabit Switch manual Specifications, Ordering Information

3COM® UNIFIED GIG ABIT SWITCH

SPECIFICATIONS

CONNECTORS

24 total available ports, comprised of:

20 auto-negotiating 10BASE-T/ 100BASE-TX/1000BASE-T ports configured as auto MDI/MDIX

4 dual-personality Gigabit port pairs, configurableas 10BASE-T/100BASE-TX/ 1000BASE-T or SFP

PERFORMANCE 48 Gbps, max.

Wirespeed performance across ports

LAYER 2 SWITCHING

8,196 MAC addresses in address table

256 port-based VLANs (IEEE 802.1Q); max.

IEEE 802.3ad Link Aggregation, Link Aggregation Control Protocol (LACP) Auto-negotiation of port speed and duplex

IEEE 802.3x full-duplex flow control IEEE 802.1D Spanning Tree Protocol (STP)

IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)

IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)

Internet Group Management Protocol (IGMP) snooping on Layer 1 and 2 interfaces

CONVERGENCE

4 hardware queues per port

IEEE 802.1p Class of Service/Quality of Service (CoS/QoS)

Auto-voice VLAN for automatic vendor-independent segregation and prioritization of VoIP traffic

Wi-Fi Multimedia (WMM)

256 Access Control Lists (ACLs)

4 BSSIDs per radio Diffserv Codepoint (DSCP)

SECURITY

Rogue AP detection and mitigation IEEE 802.1X network login user authentication

EAP over LAN (EAPoL) transport with PEAP and EAP-TLS authentication RADIUS server authentication

(RFC 2618)

Local MACauthentication Automatic VLAN assignment via RADIUS server

IEEE 802.1X user authentication of switch management on switch Telnet and console sessions; multiple access privilege levels Hierarchicalmanagementand password protectionfor managementinterface

WIRELESS ENCRYPTION

WPA Personal and Enterprise WPA 2 Personal and Enterprise AES (CCMP): 128-bit (FIPS-197) WEP 40/64- and 104/128-bit TKIP: RC4 40-bit

SSL and TLS: RC4 128-bit and RSA 1024- and 2048-bit

EAP-TLS, EAP-TTLS/MSCHAPv2, PEAPv0/EAP-MSCHAPv2,EAP-SIM

POWER OVER ETHERNET

IEEE 802.3af

15.4W per port, max.

ACCESSPOINTSUPPORT

Ships with support for up to 24 of the below access points:

•3Com Wireless 7760 11a/b/g PoE Access Point (3CRWE776075)

•3Com Wireless 8760 Dual-Radio 11a/b/g PoE Access Point (3CRWE876075)

Max. 30 users per AP radio;

250 wireless clients max. per switch

ROAMING SUPPORT

Inter-AP roaming

Fast roaming

Dynamic load balancing

MANAGEMENT

Embedded GUI web management interface

CLI via console or Telnet

System configuration with SNMP v1, 2c and 3 encryption

SSH v2 encryption Configuration file for backup and restore; dual configuration files available

Dual firmware images

Remote Monitoring (RMON) groups: statistics, history, alarm and events Port mirroring/monitoring System upgrade via HTTP and TFTP (RFC1350)

Syslog

SNTP

RADIO RESOURCE MANAGEMENT Automatic channel assignment Dynamic load balancing Bandwidth management (WMM)

DIMENSIONS

Height: 4.4 cm (1.7 in or 1 RU)

Width: 44.0 cm (17.3 in)

Depth: 41.5 cm (16.3 in)

Weight: 5.9 kg (13.0 lb)

POWER SUPPLY

Input voltage: 100-240 VAC,50/60 Hz

Current rating: 8A, max.

Power consumption: 465W,max.

Power dissipation: 207 BTU/hr, max.

ENVIRONMENTAL REQUIREMENTS Operating temperature: 0° to 40°C (32° to 104°F)

Storage temperature: -40° to 70°C (-40° to 158°F)

Humidity (operating and storage):

10% to 95% non-condensing Standard: EN 60068 (IEC 68)

RELIABILITY

MTBF: 36 years (315,000 hours)

LED INDICATORS

Port speed or PoE status, SFP module presence, fan, system

IEEE STANDARDS SUPPORTED IEEE 802.1d Spanning Tree IEEE 802.1p Priority Tags

IEEE 802.1Q VLANs

IEEE 802.1s Multiple Spanning Tree IEEE 802.1X RADIUS

IEEE 802.1w Rapid Spanning Tree IEEE 802.3 Ethernet

IEEE 802.3ab Gigabit Ethernet IEEE 802.3ac VLAN tag

IEEE 802.3ad Link Aggregation IEEE 802.3af Power over Ethernet IEEE 802.3u Fast Ethernet

IEEE 802.3x Flow Control IEEE 802.3z Gigabit Ethernet IEEE 802.11a 54 Mbps, 5 GHz

IEEE 802.11b 5.5 and 11 Mbps, 2.4 GHz IEEE 802.11d International roaming extensions

IEEE 802.11g 54 Mbps, 2.4 GHz

IEEE 802.11hSpectrummanaged802.11a IEEE 802.11i Enhanced security

EMISSIONS / AGENCY APPROVALS

EN 55022 Class A

FCC Part 15 Subpart B Class A

ICES-003 Class A

VCCI Class A

CISPR 22 Class A

EN 61000-3-2, 61000-3-3

IMMUNITY

EN 55024, 60601-1-2

SAFETY AGENCY CERTIFICATIONS UL 60950-1

EN 60950-1

CSA 2.22 # 60950-1

IEC 60950-1

EU RoHS Compliant

PACKAGE CONTENTS

Switch unit, power cord, self-adhesive rubber pads, rack-mount kit, Quick Start Guide, warranty flyer

SYSTEM PREREQUISITES Windows PC with Internet Explorer version 6.0 or greater required for GUI web management

DHCP server

WARRANTY AND OTHER SERVICES Three-year HardwareWarranty, including fans and power supply Limited SoftwareWarrantyfor 90 days Advance Hardware Replacement with Next Business Day shipment in most regions

90 days of telephone technical support

Refer to www.3com.com/warranty for details.

ORDERING INFORMATION

PRODUCT DESCRIPTION		3COM SKU
3Com Unified Gigabit Wired and Wireless PoE Switch 24-Port		3CRUS2475
Transceivers
3Com 1000BASE-SX SFP		3CSFP91
3Com 1000BASE-LX SFP		3CSFP92
Supported Access Points
3Com Wireless 7760	11a/b/g PoE Access Point	3CRWE776075
3Com Wireless 8760	Dual-Radio 11a/b/g PoE Access Point	3CRWE876075

3Com Global Services

3Com Wireless LAN Site Survey, Network Health Check,

Installation Services and ExpressSM Maintenance	www.3com.com/services_quote
3Com University Courses	www.3com.com/3comu

Visit www.3com.com for more information about 3Com secure converged network solutions.

3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA 01752-3064 3Com is publicly traded on NASDAQ under the symbol COMS.

Copyright © 2008 3Com Corporation. All rights reserved. 3Com, the 3Com logo, IntelliJack, and NBX are registered trademarks, and Express is a service mark, of 3Com Corporation. Wi-Fi and WMM are registered trademarks of the Wi-Fi Alliance; Wi-Fi CERTIFIED, WPA, and WPA2 are trademarks of the Wi-Fi Alliance. All other company and product names may be trademarks of their respective companies. While every effort is made to ensure the information given is accurate, 3Com

does not accept liability for any errors or mistakes which may arise. All specifications are subject to change without notice. 401001-005 02/08