DATA SHEET
3Com®SuperStack®3 Baseline Hubs
and Switches
Key Benefits
Affordable hubs
and switches to
support a wide
range of bandwidth
requirements.
Solutions For All Your Needs
The industry’s most complete range of
10, 10/100, and 10/100/1000 Mbps
unmanaged hubs and switches means
easy, transparent scalability to keep pace
with your bandwidth needs.
Leading Edge Technology
The Baseline family includes the indus-
try’s first tri-speed 10/100/1000 Mbps
switch and state-of-the-art Gigabit
Ethernet over copper connectivity.
Affordable
3Com®continues to drive down the
cost of desktop connectivity, including
making Fast Ethernet and Gigabit
Ethernet technology more affordable for
more users and applications.
Easy to Install and Use
All 3Com SuperStack®3 Baseline prod-
ucts are shipped ready to work out of
the box. No configuration is necessary.
Non-Stop, Worry-Free Operation
The Baseline family has the best in-
service reliability track record, based
on thousands of user installations. Just
plug in Baseline products and they
run…and run.
Lifetime Limited Warranty
Ensures peace of mind. Includes fan and
power supply.
Whether you’re a small or medium-sized
business that’s growing fast, or a large
corporation juggling constant growth at
the edge of the network, you want LAN
solutions that are affordable, adaptable
and trouble-free. 3Com delivers this
unique blend of value and ease, so com-
panies can quickly set up their networks
to support their business, and then stop
worrying about their networks so they
can focus on their business.
The SuperStack 3 family of Baseline
hubs and switches comprises a broad
range of product types and connectivity
options to satisfy the need for high-
quality products at an affordable
price—enabling even the most budget-
conscious organizations to jump up to
the next level of networking power in
order to fuel their growth and ensure
their competitiveness in the age of
e-business and the Internet.
The baseline product family includes
10 Mbps workgroup hubs, auto-sensing
dual speed 10/100 hubs, and auto-
sensing 10/100 switches with or without
a Gigabit uplink. Now 3Com has
expanded the connectivity options for
small and medium-sized LANs with the
breakthrough flexibility of the industry’s
first tri-speed switch, the SuperStack 3
Baseline auto-sensing 10/100/1000
switch, the one switch that supports the
widest range of business applications.
3COM®SUPERSTACK®3 BASELINE HUBS AND SWITCHES DATA SHEET
Baseline Hubs offer
exceptional value by
offering the lowest
cost-per-port in the
SuperStack 3 family
and the most cost-
effective way to add
new users to a
network.
3Com SuperStack 3
Baseline Hubs
3Com SuperStack 3 Baseline hubs
provide high-quality connectivity solu-
tions at entry-level prices for shared
Ethernet networks that don’t require
comprehensive management. These
hubs are ideal for low-intensity net-
work environments such as general
office applications using small net-
worked files. With the lowest per-port
cost in the SuperStack 3 family, the
Baseline hubs offer exceptional value,
and provide the most cost-effective way
to add new users to a network.
SuperStack 3 Baseline hubs provide 12-
or 24-10BASE-T RJ-45 ports, allowing
each hub to connect either 12 or 24
users. Each hub has an MDI/MDIX
switch to connect multiple hubs; this
allows you to expand the network using
normal UTP cabling. The Baseline hubs
provide a transceiver interface slot,
allowing connection to alternative net-
work media, such as fiber or coax.
Optional transceiver interface modules
are available. SuperStack 3 Baseline
hubs are pre-configured and ready to
use straight from the box.
• 12 or 24 RJ-45 10BASE-T connections
• MDI/MDIX switchable port allows for
simple cascading of hubs without the
need for special crossover cable.
• Slot for optional transceiver interface
module provides a connection to
legacy networking devices or fiber.
• Diagnostic LEDs indicate network
traffic, port status, and collisions,
making it easy to spot-check faults
and check individual port status.
SuperStack 3 Baseline
Dual Speed Hubs
The 3Com SuperStack 3 Baseline
dual speed hubs give you the simplest
way to migrate to high-speed Fast
Ethernet networking while protecting
your existing network investment.
Power users who require Fast Ethernet
can coexist with Ethernet users without
draining valuable network bandwidth.
Each Baseline dual speed hub has 12 or
24 auto-sensing ports. The SuperStack 3
Baseline dual speed hub is pre-
configured and ready to use straight
from the box.
• 12 or 24 RJ-45 10BASE-T/
100BASE-TX connections.
• Auto sensing on each port—automati-
cally senses the speed of the network
device at the other end of the cable
and optimizes performance.
• Integrated Ethernet to Fast Ethernet
switch provides seamless integration
between 10 Mbps and 100 Mbps
segments.
• Conforms as a Class II Fast Ethernet
repeater, which means that two
SuperStack 3 Baseline dual speed
hubs can be cascaded in series (the
maximum allowed according to the
Fast Ethernet specification).
• MDI/MDIX switchable port allows for
simple cascading of hubs without the
need for a special crossover cable.
• Diagnostic LEDs indicate port status,
network traffic, and collisions on
10 Mbps and 100 Mbps segments,
making it easy to spot-check faults
and check individual port status.
SuperStack 3 Baseline
10/100 Switches
SuperStack 3 Baseline switches are ideal
for any environment where raw power
and performance are needed, but man-
agement is not required. The majority
of today’s networked devices (including
PCs, servers and printers) operate at
either 10 Mbps or 100 Mbps. The
SuperStack 3 Baseline 10/100 switch
can auto-sense whether a network
device supports 100 Mbps and automat-
ically optimize the connection for this
throughput. The SuperStack 3 Baseline
10/100 switch plus 1000BASE-T pro-
vides this same bandwidth
optimization, plus a single Gigabit
uplink. A Gigabit uplink allows many
users to access a server or network
backbone concurrently, and provides
the best possible performance and
scalability for a LAN.
Baseline 10/100 switches provide 12 or
24 10/100BASE-TX switched ports and
are pre-configured and ready to use
straight from the box.
2
3COM®SUPERSTACK®3 BASELINE HUBS AND SWITCHES DATA SHEET
• The SuperStack 3 Baseline 10/100
switch provides 12 or 24 RJ-45
10BASE-T/100BASE-TX auto-sensing
ports that auto-negotiate connection
speed and full-duplex/half-duplex
mode.
• The SuperStack 3 Baseline 10/100
switch plus 1000BASE-T provides 24
RJ-45 10BASE-T/100BASE-TX auto-
sensing ports that auto-negotiate
connection speed and full-
duplex/half-duplex mode. Port 25 is a
1000BASE-T port capable of auto-
negotiation with the connected port
to operate at 1000BASE-T full duplex.
It auto-senses an MDI/MDIX connec-
tion and can be used to connect to
either another 1000BASE-T switch
port or to a 1000BASE-T server or
workstation without additional
configuration.
• IEEE 802.3x flow control ensures
network traffic is not lost during
peaks in traffic rates on high-
throughput, full-duplex links.
• Diagnostic LEDs indicate network
traffic and port status of each port,
making it easy to spot-check faults
and check individual port status.
No power failures
All SuperStack 3 Baseline products are
equipped with a connector to support
the SuperStack 3 Advanced Redundant
Power System (ARPS), for uninter-
rupted operation in the event of a
power supply failure. Power condition-
ing and back-up products are
recommended by leading UPS vendors
such as the American Power Conversion
Corporation (APC). For details on rele-
vant power products from APC see
http://3com.apcc.com.
SuperStack 3 Baseline
10/100/1000 Switches
The breakthrough SuperStack 3
Baseline 10/100/1000 switch is ideal for
users who want the high-speed perfor-
mance of 10/100/1000 switching but do
not need sophisticated management
capabilities. The SuperStack 3 Baseline
10/100/1000 switch provides high per-
formance switched connections to 10
Mbps, 100 Mbps, and 1000 Mbps hubs,
servers, printers and workstations.
The SuperStack 3 Baseline 10/100/1000
switch has six shielded RJ-45,
10/100/1000 Mbps auto-negotiating
ports on the front panel. Each
10/100/1000 Mbps port automatically
determines the speed, duplex mode, and
MDIX mode of the connected equipment
and provides a suitable switched con-
nection (1000BASE-T connections
operate in full duplex mode only).
The SuperStack 3 Baseline 10/100/1000
switch is pre-configured and ready to
use straight from the box.
• The SuperStack 3 Baseline
10/100/1000 switch provides six
RJ-45 10BASE-T/100BASE-TX/
1000BASE-T auto-sensing ports that
also auto-negotiate connection speed,
MDI/MDIX mode and full-
duplex/half-duplex mode.
• IEEE 802.3x flow control ensures that
network traffic is not lost during
peaks in traffic rates on high-
throughput, full-duplex links.
• Diagnostic LEDs indicate network
traffic and port status of each port,
making it easy to spot-check faults
and check individual port status.
10/100/1000 Auto sensing
An auto-sensing port will automatically
adjust its speed according to the equip-
ment to which it is connected. When
the UTP cable is connected and the link
is first established, the hub or switch
will instantly and automatically sense
the maximum speed of the device at the
other end of the cable. It will communi-
cate with the other device at 1000 Mbps
(for the 10/100/1000 tri-speed switch)
or 100 Mbps (for a 10/100 switch hub
or switch) or else it will run at 10 Mbps.
The SuperStack 3 Baseline 10/100/1000
Switch also auto detects the cable type so
it can easily be connected to any PC,
server, hub or switch.
Note: Although you are able to use
Category 3 grade cabling for 10 Mbps
links, you must use Category 5 grade
cabling for links running at
100 Mbps or 1000 Mbps.
3
The SuperStack 3
Baseline 10/100/
1000 Switch is
ready to use straight
from the box.
3COM®SUPERSTACK®3 BASELINE HUBS AND SWITCHES DATA SHEET
4
Floor 2
Basement
Floor 3
100 Mbps
Switched
100 Mbps
Switched
100 Mbps
Switched
100 Mbps
Switched
100 Mbps
Switched
100 Mbps
Switched
100 Mbps
Main network servers with
switched 100 Mbps connections
Shared
10 Mbps
Shared
10 Mbps
Shared
10 Mbps
Shared 10 Mbps as a cost-effective
solution for low-intensity, workgroup
applications
Shared 100 Mbps
Shared 100 Mbps
PCs and Network devices with a mix
of 10 Mbps and 100 Mbps NICs
Shared 10 Mbps
Printer
3Com
®
SuperStack
®
II Baseline
Dual Speed Hubs
SuperStack II
Baseline 10/100/1000
Switch and ARPS
Local
server
SuperStack II Baseline
Switch and Baseline Hub
Local
server on
100 Mbps
Switched
100 Mbps
Workgroup 1
Workgroup 2
Workgroup 3
Switched 10/100 Mbps
to the desktop
Switched 10/100 Mbps
to the desktop
Shared 10/100 Mbps
to the desktop
Backbone link to fully managed
corporate network
Local
server
3Com® SuperStack® II
Baseline Dual Speed Hub
SuperStack II
Baseline 10/100 Switch
SuperStack II
Baseline 10/100/1000
SuperStack II
Baseline 10/100 Switch
plus 1000BT
A Complete Solution
for a Medium Enterprise or
Branch Office
This shows a medium-sized office using
a combination of SuperStack 3 Baseline
products. A mix of switched and shared
10 Mbps and 10/100 Mbps delivers
higher performance connections where
they are needed, while keeping the
overall system cost to a minimum.
In the basement, a single SuperStack 3
Baseline 10/100/1000 switch provides
100 Mbps or 1000 Mbps switched links
to the floors and to each of the main
servers.
SuperStack 3 Baseline
Within the Managed
Network Environment
As part of the SuperStack 3 family,
SuperStack 3 Baseline products can
be integrated smoothly and effectively
into a 3Com enterprise network solu-
tion that employs network management
but that does not require it all the way
to the desktop.
In this example, network management
is used at the core of the network, and
is connected to the workgroup by a sin-
gle 1000 Mbps link.
High-performance, unmanaged
connections are then provided to desk-
tops by the SuperStack Baseline
products, as shown.
Used in this way, reliable, high-speed
network connections can be delivered
to the desktop in an extremely
cost-effective way, while ensuring com-
plete compatibility and fitting in with
the corporate network structure.
3COM®SUPERSTACK®3 BASELINE HUBS AND SWITCHES DATA SHEET
5
SuperStack 3 Baseline
Hubs
3C16440A (12 port)
3C16441A (24 port)
Physical
Width: 440 mm (17.3 in)
Depth: 224 mm (8.8 in)
Height: 43.6 mm (1.7 in)
Weight: 2.1 kg (5 lb)
Interfaces
12/24 RJ-45 Ethernet
LED Indicators
Power, network traffic,
collisions
Functional
ISO 8802-3, IEEE 802.3
(Ethernet)
Electrical
Power inlet: IEC 320
AC line frequency: 50/60 Hz
Input voltage: 100-240 VAC
Current rating: 1A (max)
Maximum power consumption:
34/44W
Maximum power dissipation:
116/150 BTU/hr
Redundant power connector:
Type 1 60W
Safety
UL 1950, EN 60950, CSA 22.2
#950, IEC 60950
Emissions
EN 55022 Class A, FCC Part 15
Subpart B Class A, ICES-003
Class A, VCCI Class A, AS/NZS
3548 Class A, CNS 13438 Class A
Immunity
EN 55024
Environmental
Operating temperature: 0° to
50°C (32° to 122°F)
Humidity: 10 to 90%
(non-condensing)
Standard: EN 60068 (IEC 68)
SuperStack 3 Baseline
Dual Speed Hubs
3C16592B (12 port)
3C16593B (24 port)
Physical
Width: 440 mm (17.3 in)
Depth: 173 mm (6.8 in)
Height: 43.6 mm (1.7 in)
Weight: 2.1 kg (5 lb)
Interfaces
12/24 RJ-45 Ethernet
LED Indicators
Power, network traffic,
collisions, LAN segment
Functional
ISO 8802-3, IEEE 802.3
(Ethernet), IEEE 802.3u (Fast
Ethernet), IEEE 802.1d
(bridging)
MAC addresses: 4,000
Electrical
Power inlet: IEC 320
AC line frequency: 50/60 Hz
Input voltage: 100-240 VAC
Current rating: 1A (max)
Maximum power consumption:
25/42W
Maximum power dissipation:
86/142 BTU/hr
Redundant power connector:
Type 1 60W
Safety
UL 1950, EN 60950, CSA 22.2
#950, IEC 60950
Emissions
EN 55022 Class A, FCC Part 15
Subpart B Class A, ICES-003
Class A, VCCI Class A, AS/NZS
3548 Class A, CNS 13438 Class A
Immunity
EN 55024
Environmental
Operating temperature: 0° to
50°C (32° to 122°F)
Humidity: 10 to 90%
(non-condensing)
Standard: EN 60068 (IEC 68)
SuperStack 3 Baseline
10/100 Switches
3C16464C (12 port)
3C16465C (24 port)
Physical
Width: 440 mm (17.3 in)
Depth: 235 mm (9.3 in)
Height: 43.6 mm (1.7 in)
Weight: 2.6 kg (6 lb)
Interfaces
12/24 RJ-45 Ethernet
LED Indicators
Power, network traffic/duplex
mode, link status/speed
Functional
ISO 8802-3, IEEE 802.3
(Ethernet), IEEE 802.3u (Fast
Ethernet), IEEE 802.1d
(bridging), IEEE 802.3x (flow
control)
Mac addresses: 4,000
Electrical
Power inlet: IEC 320
AC line frequency: 50/60 Hz
Input voltage: 100-240 VAC
Current rating: 1A (max)
Maximum power consumption:
49/88W
Maximum power dissipation:
165/300 BTU/hr
Redundant power connector:
Type 2
Safety
UL 1950, EN 60950, CSA 22.2
#950, IEC 60950
Emissions
EN 55022 Class A, FCC Part 15
Subpart B Class A, ICES-003
Class A, VCCI Class A, AS/NZS
3548 Class A, CNS 13438 Class A
Immunity
EN 55024
Environmental
Operating temperature: 0° to
50°C (32° to 122°F)
Humidity: 10 to 90%
(non-condensing)
Standard: EN 60068 (IEC 68)
Specifications
3COM®SUPERSTACK®3 BASELINE HUBS AND SWITCHES DATA SHEET
3Com Corporation, Corporate Headquarters, 5400 Bayfront Plaza, P.O. Box 58145, 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 © 2002 3Com Corporation. All rights reserved. 3Com and SuperStack are registered trademarks of 3Com
Corporation. The 3Com logo is a trademark of 3Com Corporation. All other company and product names may be trade-
marks of their respective companies. All specifications are subject to change without notice.
400411-007 04/02
SuperStack 3 Baseline Hub 12-port 3C16440A
SuperStack 3 Baseline Hub 24-port 3C16441A
SuperStack 3 Baseline Dual Speed Hub 12-port
3C16592B
SuperStack 3 Baseline Dual Speed Hub 24-port
3C16593B
SuperStack 3 Baseline 10/100 Switch 12-port
3C16464C
SuperStack 3 Baseline 10/100 Switch 24-port
3C16465C
SuperStack 3 Baseline 10/100 Switch 24-port plus
1000BASE-T 3C16467
SuperStack 3 Baseline 10/100/1000 Switch 6-port
3C16468
All Baseline hubs and switches include:
Plug and play simplicity
• No configuration required
Compact 1U high box
• Easy installation and upgrade
Rack mounting kit
• Operates free-standing or 19-inch rack-mounted
Limited lifetime warranty
• Includes all hardware, fans, and power supplies
Redundant power connector
• Peace of mind against power failures
Ordering Information
Specifications, continued SuperStack 3 Baseline
10/100 Switch (24 port
plus 1000BASE-T)
3C16467
Physical
Width: 440 mm (17.3 in)
Depth: 235 mm (9.3 in)
Height: 43.6 mm (1.7 in)
Weight: 3 kg (7 lb)
Interfaces
24 RJ-45 Ethernet
LED Indicators
Power, network traffic/duplex
mode, link status/speed
Functional
ISO 8802-3, IEEE 802.3
(Ethernet), IEEE 802.3u (Fast
Ethernet), IEEE 802.1d
(bridging), IEEE 802.3x (flow
control), IEEE 802.3ab (Gigabit
Ethernet)
MAC addresses: 4,000
Electrical
Power inlet: IEC 320
AC line frequency: 50/60 Hz
Input voltage: 100-240 VAC
Current rating: 1A (max)
Maximum power consumption:
90W
Maximum power dissipation:
306 BTU/hr
Redundant power connector:
Type 2
Safety
UL 1950, EN 60950, CSA 22.2
#950, IEC 60950
Emissions
EN 55022 Class A, FCC Part 15
Subpart B Class A, ICES-003
Class A, VCCI Class A, AS/NZS
3548 Class A, CNS 13438 Class A
Immunity
EN 55024
Environmental
Operating temperature: 0° to
50°C (32° to 122°F)
Humidity: 10 to 90% (non-
condensing)
Standard: EN 60068 (IEC 68)
SuperStack 3 Baseline
10/100/1000 Switch
(6 port)
3C16468
Physical
Width: 440 mm (17.3 in)
Depth: 247.5 mm (9.7 in)
Height: 43.6 mm (1.7 in)
Weight: 3.2 kg (7 lb)
Interfaces
6 RJ-45 Ethernet
LED Indicators
Power, network traffic, 1000
Mbps (full duplex), 100 Mbps
(full, half duplex), 10 Mbps
(full, half duplex)
Functional
ISO 8802-3, IEEE 802.3
(Ethernet), IEEE 802.3u (Fast
Ethernet), IEEE 802.1d
(bridging), IEEE 802.3x (flow
control), IEEE 802.3ab (Gigabit
Ethernet)
MAC addresses: 8,000
Electrical
Power inlet: IEC 320
AC line frequency: 50/60 Hz
Input voltage: 100-240 VAC
Current rating: 3A (max)
Maximum power consumption:
75W
Maximum power dissipation:
256 BTU/hr
Redundant power connector:
Type 2
Safety
UL 1950, EN 60950, CSA 22.2
#950, IEC 60950
Emissions
EN 55022 Class A, FCC Part 15
Subpart B Class A, ICES-003
Class A, VCCI Class A, AS/NZS
3548 Class A, CNS 13438 Class A
Immunity
EN 55024
Environmental
Operating temperature: 0° to
50°C (32° to 122°F)
Humidity: 10 to 90% (non-
condensing)
Standard: EN 60068 (IEC 68)
Warranty and Other Support
Services
Lifetime limited warranty, for as
long as the original Customer
owns the product, or five years
after product discontinuance,
whichever occurs first. Includes
fan and power supply.
After registering the product
online, other free support services
such as telephone support, fast
hardware replacement, and
software updates may also be
available, depending on regional
availability and retailer
participation.
