3Com Baseline Switch User manual

DATA SHEET
Key Benefits Wide-Ranging Unmanaged Family
Small to mid-sized businesses looking for
a switched LAN with or without high-
speed uplinks, or a low cost,
high-performance Gigabit network, will
find an affordable solution with the family
of 3Com®Baseline switches, designed for
plug-and-play network operation.
10/100 Switching with Legacy Support
3Com Baseline Switch 2016 and 2024 are
ideal for businesses with legacy Ethernet
desktops that want to start a network.
Fast Ethernet (100 Mbps) support easily
handles higher speed desktop and office
server connections.
10/100 Switching, Gigabit Uplinks
For businesses ready to step up their
network performance, the 3Com Baseline
Switch 2226 and 2250 offer 10/100
switching with two high-speed dual
purpose ports that can be used either as
10/100/1000 for fixed copper connections,
or fiber connections utilizing two Gigabit
SFP (Small Form-Factor Plug-in or mini-
GBIC) transceiver slots that accommodate
any standard 1000BASE-LX or -SX trans-
ceiver module.
High-Performance 10/100/1000
Switching
For top performance, the 3Com Baseline
10/100/1000 Switch 8-port and Baseline
Switch 2816 and 2824 deliver wirespeed
Gigabit throughput and a switching
capacity of up to 48 Gbps to handle the
most bandwidth-hungry applications.
Plug-and-Play Unmanaged Operation
3Com Baseline switches operate straight
out of the box, with no configuration
required. Auto MDI/MDIX ports identify
and adapt to the Ethernet cable type,
eliminating the most common cabling
errors and simplifying installation.
Autosensing ports detect and adjust to the
speed of the connected device to optimize
network performance.
Advanced Switching Features
IEEE 802.1p Class-of-Service (CoS) traffic
prioritization makes sure that real-time
applications such as video and audio take
priority so they run effectively, and
enable the switches to operate in larger
networks.
Rack-Mounted or Free-Standing
Configuration
Small-business configurations can vary, so
the switches are designed to operate as a
free-standing or rack-mounted switch
with included mounting kit. The standard
19-inch, one rack-unit-high (1 RU) enclo-
sure optimizes valuable office space.
Top Reliability with Limited Lifetime
Warranty
Sturdy design and construction pays off
in high reliability and long service life.
Limited Lifetime hardware warranty and
Advance Hardware Replacement* provide
peace of mind long after deployment.
3Com®Baseline Switches
*For U.S. and EU countries.

3COM®BASELINE SWITCHES DATA SHEET
2
Feature Benefit
Powerful, Advanced Switching
Gigabit performance (3C16475A, 3C16476A, Connect to servers and desktops running at 10, 100, or 1000 Mbps. 48 Gbps switching
3C16477, 3C16478, 3C16479) capacity supports highest speed servers and desktops without additional network investment.
Optional SFP transceiver module support Baseline Switch 2226 and Switch 2250 include two Gigabit SFP transceiver slots that support
(3C16478, 3C16479) multimode shortwave fiber (1000BASE-SX) or multimode longwave fiber (1000BASE-LX)
connections. Mix and match SFP transceivers for media support flexibility.
Non-blocking performance Baseline switches operate at full wirespeed on all ports, delivering unimpeded access to
networked resources.
IEEE 802.1p traffic prioritization Allow networks to run real-time multimedia applications more effectively by reserving
(priority queuing) and CoS support bandwidth for time-sensitive video, audio, and voice traffic.
Cost-effective 10/100/1000 connections Range of port densities provides expansion for growing small businesses at a very affordable
price per port.
Simple Installation and Use
Auto MDI/MDIX ports Simplify installation by eliminating common cabling errors, automatically detecting the type of
Ethernet cable used—straight-through or crossover.
Pre-configured setup Makes sure that switches work "right out of the box" with no configuration or management
software needed.
Easy-to-read front panel LEDs Give at-a-glance status and network information to simplify diagnostics and troubleshooting.
Consistent form factor Clean design, standard 1RU enclosure optimizes rack space.
Reliable
Sturdy, dependable design 3Com delivers premium-quality, reliable networking products that stay up and running year
after year.
Complete, market-leading support package Limited Lifetime hardware warranty, including fan and power supply, provides peace of mind.
90-day free telephone support and unlimited web support is there when you need it. Advance
Hardware Replacement means that on a rare occasion of a faulty unit, 3Com will send you a
replacement unit before you send the faulty unit back for repair.
Features and Benefits
3Com Baseline Switches at a Glance
3Com Baseline
Switch 2016
3Com Baseline
Switch 2024
3Com Baseline
Switch 2226
3Com Baseline
Switch 2250
3Com Baseline
10/100/1000
Switch 8-port
3Com Baseline
Switch 2816
3Com Baseline
Switch 2824
Order Number 3C16470 3C16471 3C16475A 3C16476A 3C16477 3C16478 3C16479
Ports - Autosensing 16 10/100 24 10/100 24 10/100, 48 10/100, 8 10/100/1000 16 10/100/1000 24 10/100/1000
Ethernet Ethernet 2 dual-purpose 2 dual-purpose Ethernet Ethernet Ethernet
10/100/1000 10/100/1000
or SFP or SFP
LED Indicators Power, Network Power, Network Power, Network Power, Network Power, Network Power, Network Power, Network
traffic/Duplex traffic/Duplex traffic/Duplex traffic/Duplex traffic/Duplex traffic/Duplex traffic/Duplex
mode, Link mode, Link mode, Link mode, Link mode, Link mode, Link mode, Link
status/Speed status/Speed status/Speed, status/Speed, status/Speed status/Speed status/Speed
Module active Module active
802.1p Traffic 2 queues on 2 queues on 2 queues on 2 queues on 2 queues on 2 queues on 2 queues on
Prioritization every port every port every port every port every port every port every port
(Priority Queuing)
MAC Addresses 4,000 4,000 4,000 8,000 8,000 32,000 32,000
MDI/MDIX - ✓✓ ✓ ✓ ✓✓ ✓
Automatic
configuration
on all ports
Forwarding Method Store & Forward Store & Forward Store & Forward Store & Forward Store & Forward Store & Forward Store & Forward

3COM®BASELINE SWITCHES DATA SHEET
3
Total Ports
3C16470: 16 autosensing 10/100
3C16471: 24 autosensing 10/100
3C16475A: 24 autosensing 10/100, 2 dual purpose
10/100/1000 or SFP (26 ports total
maximum)
3C16476A: 48 autosensing 10/100, 2 dual purpose
10/100/1000 or SFP (50 ports total
maximum)
3C16477: 8 autosensing 10/100/1000
3C16478: 16 autosensing 10/100/1000
3C16479: 24 autosensing 10/100/1000
Standards Conformance
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)
IEEE 802.1p (traffic prioritization)
Media Interfaces
10/100/1000BASE-TX/RJ-45
MAC Addresses
3C16470, 3C16471, and 3C16475A: 4000
3C16476A and 3C16477: 8000
3C16478 and 3C16479: 32,000
Ethernet Switching Features
Wirespeed, non-blocking Layer 2 switching; Store-
and-forward forwarding; Full-/half-duplex
auto-negotiation; 802.1p traffic prioritization (pri-
ority queuing)
Electrical Power
Power inlet: IEC 320
AC line frequency: 47/63 Hz
Input voltage: 100-240 VAC
Current rating: 1A (max)
Maximum power consumption:
3C16470 – 15W,
3C16471 and 3C16475A – 20W,
3C16476A – 56W,
3C16477 – 28W,
3C16478 – 36.5W,
3C16479 – 45.7W
Maximum power dissipation:
3C16470 – 52 BTU/hr,
3C16471 – 68 BTU/hr,
3C16475A – 68.3 BTU/hr,
3C16476A – 184.3 BTU/hr,
3C16477 – 95.6 BTU/hr,
3C16478 – 124.6 BTU/hr,
3C16479 – 56 BTU/hr
LED Indicators
Module active (3C16475A and 3C16476A only),
Power, Network traffic/Duplex mode, Link sta-
tus/Speed
Operating Temperature:
0° to 50°C (32° to 122°F)
Humidity: 10 to 90% (non-condensing)
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
Environmental
EN 60068 (IEC 68)
Immunity
EN 55024
Physical Dimensions
Height: 44 cm (17.3 in)
Depth: 3C16470, 3C16471, 3C16475A, 3C16477,
3C16478 and 3C16479 – 17.3 cm (6.8 in);
3C16476A – 23.5 cm (9.3 in)
Width: 4.4 cm (1.7 in)
Weight: 3C16470, 3C16471, 3C16475A, 3C16476A
and 3C16477 – 2.6 kg (6 lb);
3C16478 – 1.87 kg (4.12 lb); 3C16479 – 1.96 kg
(4.32 lb)
Package Contents
Baseline Switch
Rubber feet
Rack-mount kit
User’s guide
Hardware Warranty and Non-Warranty Services
Limited Lifetime Warranty, for as long as the origi-
nal customer owns the product, or five years after
product discontinuance, whichever occurs first.
After registering the product online, other free
support services such as 90 days free telephone
support and next business day advanced hardware
replacement may also be available, depending on
the region. Please refer to warranty information
card product insert for details.
Specifications

3COM®BASELINE SWITCHES DATA SHEET
3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA 01752-3064
To learn more about 3Com solutions, visit www.3com.com. 3Com is publicly traded on NASDAQ under the symbol COMS.
Copyright © 2004 3Com Corporation. All rights reserved. 3Com and the 3Com logo are registered trademarks of 3Com
Corporation. Possible made practical is a trademark of 3Com Corporation. 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. Specifications and other information in this docu-
ment may be subject to change without notice.
400838-002 05/04
All Baseline switches include:
• Plug and play simplicity
• No configuration required
• Compact 1RU-high enclosure
• Easy installation and upgrade rack
mounting kit
• Free-standing or 19-inch rack-mounted
operation
Ordering
Information
3Com Baseline Switch 2016 3C16470
3Com Baseline Switch 2024 3C16471
3Com Baseline Switch 2226 3C16475A
3Com Baseline Switch 2250 3C16476A
3Com Baseline 10/100/1000 Switch 8-port 3C16477
3Com Baseline Switch 2816 3C16478
3Com Baseline Switch 2824 3C16479
Optional Modules for 3Com Baseline Switch 2226 and Switch 2250
3Com 1000BASE-SX SFP 3CSFP191
3Com 1000BASE-LX SFP 3CSFP192