DATA SHEET
10/100 Network Interface Cards
Key Benefits
Outstanding Reliability
Our 3Com®10/100 NICs deliver worldrenowned 3Com reliability backed by
a Lifetime Limited warranty.
Top Performance
Advanced bus technology, TCP/IP
offloads, and traffic control features
accelerate LAN throughput, improve
application performance, and lower
CPU utilization.
Easy Installation
The installation CD-ROM has tools
and software—including the interactive 3Com Connection Assistant—to
make installing and configuring your
NIC a snap.
Broad Compatibility
Our NICs are extensively tested to
work with industry-leading PCs and
network operating systems.
Intelligent Management*
3Com management software brings
intelligence to these desktop NICs, providing smart solutions to IT problems.
Technology Leadership
Our reputation for innovative technologies comes from designing highquality NICs, ASICs, controllers, and
much more.
Brand Recognition
3Com Fast Ethernet NICs are consistently the first choice of IT managers
worldwide. (In-Stat, August 2001)
Manageable, Reliable,
High-Performance Network
Connectivity for Desktop PCs
3Com 10/100 NICs are ideal for
medium and large enterprises making
the transition to Windows XP and
2000. They’ll help you experience a
whole new level of performance from
your LAN, thanks to robust hardware,
simple installation, and with our managed versions, intelligent management
features. Plus, you can count on comprehensive support for existing and
emerging network standards.
Choose the managed version for comprehensive remote desktop control
and monitoring that lowers IT administration time and costs. Or if all you
need is a basic network link, we
offer the same proven hardware and
advanced performance features without the management support.
3COM®10/100 NETWORK INTERFACE CARDS
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Product Features
Robust Performance
TCP/IP checksum offloads reduce CPU
workloads and improve application
response. Flow control, traffic prioritization, and advanced bus technology
improve data throughput and transfer
efficiency.
Support for Major Operating Systems
Driver support includes the latest
releases of the most popular desktop
operating systems—including Windows,
NetWare, and Linux—as well as for
many legacy systems.
Intelligent Management Software*
3Com desktop management features
deliver comprehensive, proactive PC
control that lowers IT administration
time and raise network performance.
They enable our intelligent 10/100
managed NICs to monitor your PCs for
environmental problems, boot failures,
system tampering, theft, and more.
Industry Standards-Compatible
Our 10/100 NICs are guaranteed
compatible with an exhaustive list of
industry standards and specifications.
Install these desktop NICs as integral
components in end-to-end networking
solutions for most networking environments—including education,
healthcare, small office, home office,
and Fortune 1000 enterprises.
Simple Installation and Configuration
Whether you choose the managed or
nonmanaged model, these standardscompliant desktop NICs are easy to
install and use. Plug-and-play support
and Intelligent Auto Install software
help ensure easy setup in desktops
running Windows or NetWare. We
also include 3Com Connection Assistant,
an interactive problem-solving, diagnostic, and repair tool.
Smarter Technical Support
Our new 3Com Connection Assistant
gives end users and support staff
one easy-to-use tool for management,
troubleshooting, and repair. Its automated, Web-based interface provides
options for either self or assisted
service, helping users get and stay
connected.
Managed or Unmanaged?
Depending on your needs, we offer
two versions of these NICs. Most users
go with the managed version. Why?
Remote management and monitoring
features—such as remote wake up,
automatic system alerts, and centralized control consoles—help IT staff
significantly reduce the time and money
spent on network administration. Our
unmanaged version is for the user who
needs a simple network link and
doesn’t need to worry about management—a smaller worksite with limited
network resources, for example.
Buy 3Com For Effortless Connections
3Com is committed to delivering
simple network connections that
make it easier to access your network’s
increasingly complex infrastructure.
Open standards-based, intelligent 3Com
NICs help ensure network availability
and high-speed performance, while
reducing your total cost of ownership.
Lifetime Limited Warranty
3Com backs 10/100 NICs with a Lifetime
Limited warranty. For details, refer
to the product manual or visit
www.3com.com.
3COM®10/100 NETWORK INTERFACE CARDS
Features and Benefits
Feature Benefit
Performance
10/100 Mbps autonegotiation Automatically senses and configures the
network link for the speed of hub or switch
ports.
Advanced bus technology Overlaps processing tasks to increase
throughput, lower CPU utilization, and
improve application performance.
TCP/IP checksum offloads Conserve host processing cycles for business-
critical applications.
Flow control Provides for more efficient data transfer and
higher network performance in switched
networks.
Traffic prioritization Gives time-sensitive data and business-critical
applications top priority.
Efficient multicast control Controls multicast flooding in switched
LANs, improving overall system performance.
ACPI support Reduces power consumption and allows
remote wake up through the PCI bus†.
Management*
Managed PC Boot Agent Enables pre-OS installations, upgrades, and
recovery—even if the PC won’t boot on its
own.
Remote wake up Enables after-hours, remote power-up and
administration of desktops.
RMON-1/RMON-2 Delivers low-cost, comprehensive network
management, including application response
time monitoring and system-level reporting.
ASF-compatible remote system alerts Enable proactive management and monitoring
in PC hosts that support alerts; work seamlessly with Intel LDCM 6.0, HP OpenView
NNM 6.0, and Microsoft SMS 2.0.
DMI 2.0s Enables remote gathering of PC resources
and inventory information without costly
desktop visits.
Standards Compliance
IEEE 802.3 Fully backwards-compatible with 802.3
Ethernet and 802.3u Fast Ethernet networks;
works with third-party NICs and LOMs.
PCI 99/2001, Windows, NetWare Works with the hardware and operating
systems preferred by most PC users.
Ease of Use
Installation CD-ROM Simplifies NIC installation and configuration;
includes Intelligent Auto Install, drivers,
diagnostics, user’s guide, and the interactive
3Com Connection Assistant.
3Com Connection Assistant Provides self- and assisted-service functions
for end users and support technicians; automated Web interface is extremely easy to use.
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3COM®10/100 NETWORK INTERFACE CARDS
3Com Corporation, Corporate Headquarters, 5400 Bayfront Plaza, Santa Clara, CA 95052-8145
To learn more about 3Com solutions, visit www.3com.com. 3Com Corporation is publicly traded on Nasdaq
under the symbol COMS.
Copyright © 2001 3Com Corporation. All rights reserved. 3Com is a registered trademark and the 3Com logo is a trademark of 3Com Corporation. HP and OpenView are registered trademarks or trademarks of Hewlett-Packard Company.
Intel is a registered trademark of Intel Corporation. Linux is a registered trademark of Linux Torvalds. Microsoft,
Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered
trademarks and ODI is a trademark of Novell, Inc. All other company and product names may be trademarks of their
respective companies.
Printed in the U.S. on recycled paper. 400722-001 09/01
3Com 10/100 Managed NIC
Single NIC 3C905CX-TX-M
Twenty-five pack 3C905CX-TX-M-25
3Com 10/100 NIC
Single NIC 3C905CX-TX-NM*
Twenty-five pack 3C905CX-TX-NM-25PK*
Make sure your desktops, notebooks, clients, and
servers include superior 3Com connectivity. Look for
the 3Com Connected
™
label, ask your PC manufacturer
to use 3Com components, or visit
www.3com.com to
find a preferred 3Com OEM Partner.
Ordering Information
Media
10BASE-T/100BASE-TX
Bus Interface
32-bit, 33 MHz PCI
Buffer Memory
2 KB transmit, 2 KB receive
Interrupt Levels
Interrupt line INTA; conforms with PCI
specifications
Cables and Operating Distances
10BASE-T
Category 3, 4, or 5 UTP up to 100 m (328 ft)
100BASE-T
Category 5 UTP up to 100 m (328 ft)
System Requirements
Hardware
PCI 2.1-/2.2-compliant clients, desktops
Software
• Linux 2.4
• Linux 2.2
• Microsoft Windows XP
• Microsoft Windows 2000
• Microsoft Windows Me
• Microsoft Windows NT 4.0
• Microsoft Windows 98
• Novell NetWare 5.x
Management
Any SNMP management platform, including
3Com Network Supervisor, 3Com Managed PC
Boot Agent, and 3Com Boot Services.
Standards Compliance
PCI 2.1/2.2, PC99/2001, 802.3, 802.3u, 802.1p/Q,
802.3x, PXE, DMI 2.0s, ACPI, WfM, WOL
Safety and Electromagnetic Compatibility
FCC Part 15, Class B, CE, UL, C-tick, EN55022 Class
B (CISPR B), En55024 (CISPR 24), VCCI Class 2
Operating Ranges
Temperature
0 to 70°C (32 to 158°F)
Humidity
10 to 90% noncondensing
Power Requirements
+3.3 V+/- 5% @ 375 mA max.
RWU over bus enabled: +3.3 V aux.
†
Sleep state, RWU disabled: +3.3 V @ 20 mA max.
Specifications
* Desktop management and monitoring supported by 3C905CX-TX-M NICs only; 3C905CX-TX-NM NICs do not support most of these features.
† PCI 2.2-compliant systems only.
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