32-Port 10/100Mbps
Ethernet Switch
User Guide
UG-ASW232-1103
32-Port 10/100Mbps Ethernet Switch User Guide
required for safe operation of the equipment is not
compromised.
•
•
Mechanical Loading⎯Mounting of the equipment in
the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
Circuit Overloading⎯Consideration should be given to
the connection of the equipment to the supply circuit
and the effect that overloading of circuits might have
on over current protection and supply wiring.
Appropriate consideration of equipment nameplate
ratings should be used when addressing this concern.
Reliable Earthing⎯Reliable earthing of rack-mounted
equipment should be maintained. Particular attention
should be given to supply connections other than direct
connections to the branch circuit (e.g., use of power
strips).
•
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32-Port 10/100Mbps Ethernet Switch User Guide
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32-Port 10/100Mbps Ethernet Switch User Guide
Table of Contents
About this Guide.............................................. 7
Purpose ...................................................................... 7
Terms & Usage .......................................................... 7
Overview of This User Guide ................................. 7
Introduction ...................................................... 8
Fast Ethernet Technology ........................................ 8
Switching Technology .............................................. 8
Features .................................................................... 10
Unpacking & Installation...............................11
Unpacking ............................................................... 12
Installation ............................................................... 12
100 Base-FX Module Installation .......................... 13
Rack Mounting ....................................................... 14
Connecting Network Cable................................... 15
Power On ................................................................. 15
External Components .................................... 15
Front Panel............................................................... 15
Twisted Pair Ports................................................... 17
Rear Panel ................................................................ 17
LED Indicators ........................................................ 18
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32-Port 10/100Mbps Ethernet Switch User Guide
Connecting the Switch................................... 18
Connecting a PC to the Switch ............................. 18
Connecting a Hub or Switch to the Switch ......... 19
Port Speed & Duplex Mode .................................. 19
Technical Specifications ................................ 20
Technical Support .......................................... 22
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32-Port 10/100Mbps Ethernet Switch User Guide
About This Guide
Congratulations on your purchase of the 32-port
10/100Mbps Ethernet Switch. This device integrates
100Mbps Fast Ethernet and 10Mbps Ethernet network
capabilities in a highly flexible package.
Purpose
This User Guide discusses how to install your 32-port
10/100Mbps Ethernet Switch.
Terms & Usage
In this guide, the term "Switch" (first letter upper case) refers
to your 32-port 10/100Mbps Fast Ethernet Switch, and
"switch" (first letter lower case) refers to other Ethernet
switches.
Overview of this User Guide
This User Guide contains the following sections
Introduction⎯Describes the Switch and its features.
Unpacking and Installation⎯Helps you get started
with the basic installation of the Switch.
Identifying External Components⎯Describes the
Switch’s front panel, rear panel, and LED indicators.
Technical Specifications⎯Lists the Switch’s technical
(general, physical and environmental, and
performance) specifications.
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32-Port 10/100Mbps Ethernet Switch User Guide
Introduction
This chapter describes the features of the Switch and some
background information about Ethernet and Fast Ethernet
switching technology.
Fast Ethernet Technology
The growing importance of local area networks (LANs) and
the increasing complexity of desktop computing
applications are fueling the need for high performance
networks. A number of high-speed LAN technologies have
been proposed to provide greater bandwidth and improve
client/server response times. Among them, 100 BASE-T
(Fast Ethernet) provides a non-disruptive, smooth evolution
from the current 10 BASE-T technology. The non-disruptive
and smooth evolution nature, and the dominating potential
market base, virtually guarantee cost effective and high
performance Fast Ethernet solutions in the years to come.
100Mbps Fast Ethernet is a standard specified by the
IEEE 802.3 LAN committee. It is an extension of the 10Mbps
Ethernet standard with the ability to transmit and receive
data at 100Mbps, while maintaining the CSMA/CD
Ethernet protocol. Since 100Mbps Fast Ethernet is
compatible with all other 10Mbps Ethernet environments, it
provides a straightforward upgrade and takes advantage of
the existing investment in hardware, software, and
personnel training.
Switching Technology
Another approach to pushing beyond the limits of Ethernet
technology is the development of switching technology. A
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32-Port 10/100Mbps Ethernet Switch User Guide
switch bridge Ethernet packets at the MAC address level of
the Ethernet protocol transmitting among connected
Ethernet or Fast Ethernet LAN segments.
Switching is a cost-effective way of increasing the total
network capacity available to users on a LAN. A switch
increases capacity and decreases network loading by
dividing a LAN into different segments that don't compete
with each other for network transmission capacity.
The switch acts as a high-speed selective bridge between the
individual segments. The switch automatically forwards
traffic that needs to go from one segment to another without
interfering with any other segments. This multiplies the
total network capacity while maintaining the same network
cabling and adapter cards.
For Fast Ethernet networks, a switch is an effective way of
eliminating problems of chaining hubs beyond the “two-
repeater limit.” A switch can be used to split parts of the
network into different collision domains, making it possible
to expand your Fast Ethernet network beyond the
205-meter network diameter limit for 100 BASE-TX
networks. Switches supporting both traditional 10Mbps
Ethernet and 100Mbps Fast Ethernet are also ideal for
bridging between the existing 10Mbps networks and the
new 100Mbps networks.
Switching LAN technology is an improvement over the
previous generation of network bridges, which were
characterized by higher latencies. Routers have also been
used to segment LANs, but the cost of a router, the setup
and maintenance required make routers relatively
impractical. Today switches are an ideal solution to most
kinds of LAN congestion problems.
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32-Port 10/100Mbps Ethernet Switch User Guide
Features
The Switch was designed for easy installation and high
performance in an environment where traffic on the
network and the number of user increase continuously.
The Switch, with its rack size, is specifically designed for
middle- to large-sized workgroups. The Switch provides
immediate access to a rapidly growing network through a
wide range of user-reliable functions.
The Switch is ideal for deployment with multiple high-
speed servers for shared bandwidth 10Mbps or 100Mbps
workgroups. With the highest bandwidth 200Mbps
(100Mbps full-duplex mode), any port can provide
workstations with a congestion-free data pipe for
simultaneous access to the server.
The Switch is expandable by cascading two or more
switches together. Since all ports support 200Mbps, the
Switch can be cascaded from any port and to any number of
switches.
The Switch is a perfect choice for systems that will be
upgraded to Fast Ethernet in the future. Ethernet
workgroups can connect to the Switch now, and change
adapters and hubs anytime later without needing to change
the Switch or reconfigure the network.
The Switch combine dynamic memory allocation with store-
and-forward switching to ensure that the buffer is
effectively allocated for each port, while controlling the data
flow between the transmit and receive nodes to guarantee
against all possible packet loss.
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32-Port 10/100Mbps Ethernet Switch User Guide
The Switch is an unmanaged 10/100Mbps Fast Ethernet
Switch that offers solutions in accelerating small Ethernet
workgroup bandwidth. Other key features are:
•
Auto MDI/MDIX feature automatically detects and
corrects for crossover cables and allows direct switch-
to-switch connection.
•
Store and forward switching scheme capability. As the
result of complete frame checking and error frame
filtering, this scheme prevents error packages from
transmitting among segments.
•
Auto-negotiation for any port. This allows for auto-
sensing of speed (10/100Mbps) and duplex-mode (half
or full-duplex) thereby providing you with automatic
and flexible solutions in your network connections.
IEEE 802.3x flow control for full-duplex.
Back pressure flow control for half-duplex.
Data forwarding rate per port is at wire-speed for both
10Mbps and 100Mbps speed.
•
•
•
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Data filtering rate eliminates all error packets, runts,
etc., per port at wire-speed for both 10Mbps and
100Mbps speed.
•
•
4K active MAC address entry table with self-learning
and table ageing.
1,024-KBytes RAM of buffer per device.
Unpacking & Installation
This chapter provides unpacking and setup information for
the Switch.
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32-Port 10/100Mbps Ethernet Switch User Guide
Unpacking
Open the shipping cartons of the Switch and carefully
unpacks its contents. The carton should contain the
following items:
•
•
•
•
•
One the 32-port 10/100Mbps Ethernet Switch
One AC power cord
Four rubber feet to be used for shock cushioning
Screws and two mounting brackets
This User Guide
If any item is found missing or damaged, contact your local
reseller for replacement.
Installation
The site where you install the hub stack may greatly affect
its performance. When installing, consider the following
pointers:
•
Install the Switch in a cool and dry place. See
Specifications for the acceptable temperature and
humidity operating ranges.
•
Install the Switch in a site free from strong
electromagnetic field generators (such as motors),
vibration, dust, and direct exposure to sunlight.
Leave at least 10 cm of space at the front and rear of the
hub for ventilation.
Install the Switch on a sturdy, level surface that can
support its weight, or in an EIA standard-size
equipment rack. For information on rack installation,
see the next section, Rack Mounting.
•
•
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32-Port 10/100Mbps Ethernet Switch User Guide
When installing the Switch on a level surface, attach the
rubber feet to the bottom of each device. The rubber feet
cushion the hub and protect the hub case from scratching.
100 Base-FX Module Installation
The installation procedure for each module is the same.
Additional information about each module is provided
below.
Use the following steps to install any of the modules
(including SC or ST type connectors):
1. Turn power off the switch
2. Locate the module slot in the switch's rear panel.
3. Using a screwdriver, undo the two screws and
remove the dust cover on the module slot.
4. Holding the module component-side up and
connector-side in, gently slide the module along
the guides and seat it in the internal connector.
5. Using a screwdriver, replace the two screws and
tighten until snug.
AirLink+ recommends that you retain the dust cover in case
you need to remove the module for an extended period
sometime in the future.
Do not use Port 9 and the 100 BASE-FX module at the same
time.
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32-Port 10/100Mbps Ethernet Switch User Guide
Rack Mounting
The switch can be mounted in an EIA standard-size, 19-inch
rack, which can be placed in a wiring closet with other
equipment. Attach the mounting brackets at the switch's
front panel (one on each side), and secure them with the
provided screws (see Figure 1).
Figure 1. Attach Brackets to Switch
Then, use screws provided with the equipment rack to
mount each switch in the rack (see Figure 2).
Figure 2. Attach Switch to Rack
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32-Port 10/100Mbps Ethernet Switch User Guide
Connecting Network Cable
The Switch supports 10Mbps Ethernet or 100Mbps Fast
Ethernet and it runs both in half and full duplex mode.
These ports are Auto-MDI type port. The Switch can auto
transform to MDI-II or MDI-X type, so you can just make an
easy connection that without worrying if you are using a
standard or crossover cable.
Power On
The 32-port 10/100Mbps Ethernet Switch can be used with
AC power sources 100 - 240 VAC, 50 - 60 Hz. The Switch's
power supply will adjust to the local power source
automatically and may be turned on without having any or
all LAN segment cables connected.
External Components
This section identifies all the major external components of
the switch. Both the front and rear panel is shown, followed
by a description of each panel feature. The indicator panel is
described in detail in the next chapter.
Front Panel
Figure 3 shows the Switch’s front panel.
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32-Port 10/100Mbps Ethernet Switch User Guide
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32-Port 10/100Mbps Ethernet Switch User Guide
Twisted-Pair Ports
These ports supports automatic MDI/MDIX crossover
detection function gives true 'plug and play' capability
without the need of confusing crossover cables or crossover
ports.
With the Auto-MDI function, you just need to plug-in the
network cable to the hub directly and no need to care if the
end node is Network Interface Card (NIC) or switches and
hubs.
Rear Panel
Figure 4 shows the Switch’s rear panel.
Figure 4. Rear Panel
Rear of Switch
I
O
Module Slot
AC Power Connector
Module Slots
The module slots are used to install module options for
100 BASE-FX connection.
AC Power Connector
Plug the power cord into the AC power connector.
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32-Port 10/100Mbps Ethernet Switch User Guide
LED Indicators
The LED indicator panel contains the following indicators:
•
•
Power (PWR)⎯This indicator lights green when the
switch is receiving power. Otherwise, it is off.
Full-Duplex/Collision (Full-Duplex/
Collision)⎯This LED indicator lights green when a
respective port is in full duplex (FDX) mode. Otherwise,
it is blinking when collisions are occurring on the
respective port.
•
•
Link/Activity (green/amber)⎯This indicator lights
green when the port is connected to a 100Mbps Fast
Ethernet station. If the indicator blinks green, data is
tranmitted or received on the 100Mbps network. If the
indicator lights amber, the port is connected to a
10Mbps Ethernet station. If the indicator blinks amber,
data is tranmitted or received on the 10-Mbps network.
100 BASE-FX Module Indicator (green)⎯This
indicator lights up green when a module is installed.
Connecting the Switch
This chapter describes how to connect the Switch to your
Fast Ethernet network.
Connecting a PC to the Switch
A PC can be connected to the Switch via a two-pair
Category 3, 4, 5 UTP/STP cables. Connect the PC (equipped
with a RJ-45 10/100Mbps phone jack) to any of the 32 ports
(1 to 32)
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32-Port 10/100Mbps Ethernet Switch User Guide
The LED indicators for the PC connection depend on the
LAN card capabilities. If LED indicators are not lit after
making a proper connection, check the PC LAN card, the
cable, the Switch conditions, and connections.
Connecting a Hub or Switch to the Switch
You can connect the Switch to another switch or other
devices (i.e., routers, bridges, etc.) via a two-pair Category 3,
4, 5 UTP/STP cable.
The following are LED indicator possibilities for a PC or
other devices to Switch connection:
1. The LINK/ACT LED indicator lights green when
connected at 100 Mbps or lights amber when
connected at 10 Mbps.
2. The COL LED indicator lights green when a
collision happens.
3. The FDX LED indicator lights green when
operating at full duplex. This LED is off when it the
switch is operating at half duplex.
Port Speed & Duplex Mode
After plugging the selected cable to a specific port, the
system uses auto-negotiation to determine the transmission
mode for any new twisted-pair connection:
If the attached device does not support auto-negotiation or
has auto-negotiation disabled, an auto-sensing process is
initiated to select the speed and set the duplex mode to half-
duplex.
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32-Port 10/100Mbps Ethernet Switch User Guide
Technical Specifications
Tables 1 to 3 provide Switch specifications.
Table 1. General Specifications
Feature
Description
Standards
IEEE 802.3 10 Base-T ethernet
IEEE 802.3a 100 Base-TX fast ethernet
ANSI/IEEE 802.3 auto-negotiation
IEEE 802.3x flow control
Protocol
CSMA/CD
Data transfer
rate
Ethernet: 10 Mbps (half duplex), 20 Mbps (full duplex)
Fast ethernet: 100 Mbps (half duplex), 200 Mbps
(full duplex)
Topology
Star
Network
cables
10 Base-T: Two-pair UTP Cat. 3, 4, 5; EIA/TIA-568
100-Ω STP
100 Base-TX: Two-pair UTP Cat. 5; EIA/TIA-568
100-Ω STP
100 Base-FX: 62.5/125 µm multimode fiber optic
Number of
ports
32 × 10/100Mbps auto-MDI/MDI-X ports
Expansion
slot
One expansion slot for 100 Base-FX
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32-Port 10/100Mbps Ethernet Switch User Guide
Table 2. Physical & Environmental Specifications
Feature
Specification
AC inputs
100 to 240 VAC, 50- or 60-Hz internal universal power
supply
Power
40 watts (maximum)
consumption
Temperature
Humidity
Operating: 0˚ to 50˚ C
Storage: −10˚ to 70˚ C
Operating: 10 to 90%
Storage: 5 to 90%
Dimensions
EMI
440 × 200 × 44 mm (W × H × D)
FCC Class A, CE Mark Class A, VCCI Class A
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32-Port 10/100Mbps Ethernet Switch User Guide
Table 3. Performance Specifications
Feature
Specification
Transmission
method
Store-and-forward
RAM buffer
1,024 Kbytes per device
4K entries per device
Filtering
address table
Packet filtering/
forwarding rate
10Mbps ethernet: 14,880/pps
100Mbps fast ethernet: 148,800/pps
MAC address
learning
Automatic update
Technical Support
E-mail: [email protected]
Toll Free: 1-888-746-3238
Web Site: www.airlinkplus.com
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32-Port 10/100Mbps Ethernet Switch User Guide
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32-Port 10/100Mbps Ethernet Switch User Guide
Copyright © 2003 AirLink+. All rights reserved. AirLink+, the stylized AirLink+ logo,
specific product designations, and all other words and logos that are identified as
trademarks and/or service marks are, unless noted otherwise, the trademarks and
service marks of AirLink+. All other product or service names are the property of their
respective holders. AirLink+ products are protected under numerous U.S. and foreign
patents and pending applications, maskwork rights, and copyrights.
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