Lantronix LSW2F8 User manual
LSW2F8, LSW2F16
10/100 Ethernet
Switch
Installation Guide
LSW2F8_16 Guide 3/18/99 12:17 PM Page 1 (1,1)
Table of Contents
CHAPTER 1. Introduction
1.1 Product Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CHAPTER 2. Using the LSW Switch
2.1 Packing Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Planning Your Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.1 Fileserver Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.2 Backbone Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.3 10/100Mbps Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Connecting the LSW Switch . . . . . . . . . . . . . . . . . . . . . . . . 11
CHAPTER 3. LED Indicators
3.1 Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 10/100 Mbps LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Full/Col: Full or Half Duplex/Collision LEDs. . . . . . . . . 13
3.4 Link/Activity LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . 16
1
LSW2F8_16 Guide 3/18/99 12:17 PM Page 1 (1,1)
CHAPTER 1 Introduction
1.1 Product Introduction
Congratulations on your purchase of the Lantronix 10/100Mbps 10-
port or 18-port switch. The LSW2F8 and LSW2F16 10/100 Ethernet
Switches are designed to give you the ultimate in performance, flexibil-
ity, ease-of-use, and reliability.
The LSW 10/100 switches can increase performance on your network
by bringing full Ethernet bandwidth to individual workgroups or
straight to the desktop instead of requiring all stations to share the
bandwidth of a single network. The LSW switchÕs 100Mbps Fast
Ethernet capability can eliminate bottlenecks in connection to servers,
or can link 10Mbps workgroups to a 100Mbps Fast Ethernet network
backbone.
For straight-through 10BASE-T/100BASE-TX connections to servers
and workstations, the LSW switches support full-duplex connections,
effectively doubling the total throughput on individual links. The LSW
switchÕs store-and-forward switching architecture forwards packets to
their destination with a minimum of delay and eliminates bad packets
from the network.
The LSW2F8/LSW2F16 switch can be placed on a tabletop or rack-
mounted, and provides the ideal solution for your small, medium, or
large Ethernet/Fast Ethernet network. These devices are designed to
comply fully with the IEEE 802.3 Ethernet and 802.3u Fast Ethernet
standards.
2
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1.2 Features
▼The LSW2F8 provides two 100BASE-TX ports and eight 10BASE-T
ports for Ethernet and Fast Ethernet connectivity
▼The LSW2F8/LSW2F16 comply with the IEEE 802.3 Ethernet and
IEEE 802.3u Fast Ethernet standards
▼An Uplink switch on the front panel enables the LSW switch to be
cascaded to another 10Mbps or 100Mbps hub using a straight-
through cable
▼Store-and-forward switching architecture for filtering bad packets
▼Total bandwidth up to 280Mbps (LSW2F8I) and 360Mbps (LSW2F16)
▼Automatic address learning with 8K addresses per port
▼MemoryÐLSW2F8: 1MB total
LSW2F16: 3MB total
▼Per-port frame filtering and forwarding capability
▼Filtering and forwarding rate 14880 packets per second for 10Mbps
ports, 148800 per second for 100Mbps ports
▼Global Power and individual Collision, Link/Activity LEDs
monitor system status
▼The internal power supply automatically adjusts to the voltage
range of the AC power being supplied (100VAC/60Hz to
240VAC/50Hz), with no change in settings or fuse required
▼FCC Class A, CE, UL, CUL, TUV certifications
▼Five year limited warranty
3
LSW2F8_16 Guide 3/18/99 12:17 PM Page 3 (1,1)
1.3 Product Specifications
Standards IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
Architecture Store and forward switching
Connectors LSW2F8 8x10BASE-T/2 100BASE-TX (RJ-45) Fast
Ethernet ports
LSW2F16 16x10BASE-T/2 100BASE-TX (RJ-45) Fast
Ethernet ports
Uplink ports Push button to select Uplink or Normal
connections: Port 1 and Port 10
Duplex mode Autonegotiates to highest setting on 10/100 ports
(Ports 1 and 2)
Switch-selectable on 10Mbps ports
LED indicators Power (device)
Link/Act, Full/Col (per port)
Power 100Ð240VAC, 50/60Hz
EMI Approval FCC Class A, CE, UL, CUL, TUV
Dimensions 220mm x 330mm x 44mm (L x W x H)
Environment Operating: 0¡C to 40¡C, 10% to 80% humidity
Storage: -20¡C to 70¡C, 5% to 90% humidity
Warranty 5-year limited
4
LSW2F8_16 Guide 3/18/99 12:17 PM Page 4 (1,1)
5
Chapter 2 Using the LSW Switch
2.1 Packing Checklist
Your switch product package should contain the following:
✓An LSW2F8 or LSW2F16 10/100 Ethernet Switch
✓One AC Power Cable
✓Four self-adhesive standoffs
✓Rackmount brackets and screws
✓Installation Guide
If any of these items are missing, contact your dealer immediately.
2.2 Planning Your Network
Before you install your 10/100Mbps network, you should plan out
how you wish to organize your network to take maximum advantage
of its switching capabilities. This section discusses typical applications
for the switch.
LSW2F8_16 Guide 3/18/99 12:17 PM Page 5 (1,1)
6
2.2.1 Fileserver Link
The LSW switch can be used to greatly increase the bandwidth between
one or more fileservers and the workgroups they serve. Individual
10Mbps workgroup switches can be connected to the ports on the LSW
switch, ensuring that traffic in one workgroup will not interfere with
the performance of another workgroup. Full-duplex 100Mbps links to
fileservers guarantee that full bandwidth is delivered to each work-
group. High-performance workstations needing extra throughput can
connect directly to the switch using a full-duplex 10BASE-T connection,
giving 20Mbps of effective throughput.
Figure 2-1 Fileserver Link Application
FULL/COL
LINK/ACT
12 3456 78910
LSW2F8
Hub
Fileserver
(100Mbps) Fileserver
(100Mbps)
Hub
Workgroups
LSW2F8_16 Guide 3/18/99 12:17 PM Page 6 (1,1)
2.2.2 Backbone Link
Traditionally, bridges and routers have been used to link individual
local area networks into an interconnected network. Routers and tradi-
tional bridges introduce relatively large delays when forwarding traffic
from one network to another, in addition to being difficult to manage.
Bridge architecture based on two-port bridges may require traffic to
pass through several bridges before reaching its destination. Ethernet
switches now perform these functions with especially small delays,
making them ideal for backbone link applications. Compared to
routers, LantronixÕs LSW Ethernet switches are easy to set up and
maintain. Several networks can be connected together with a single
Ethernet switch, and the forwarding delay is negligible. One or more of
the LSW switchÕs 100Mbps links can be used as a high-speed backbone
link to other switches serving as collapsed backbones.
Figure 2-2 Collapsed Backbone Application
7
FULL/COL
LINK/ACT
FULL/COL
LINK/ACT
12 3456 78910
LSW2F16
Fileserver
(100Mbps)
Hub Hub
Workgroup
(10Mbps shared)
Workgroup
(10Mbps shared)
To 100Mbps
Ethernet Backbone
LSW2F8_16 Guide 3/18/99 12:17 PM Page 7 (1,1)
2.2.3 10/100Mbps Bridging
The LSW 10/100 Ethernet Switch can allow you to gradually transition
between traditional 10Mbps Ethernet and newer 100Mbps Fast
Ethernet. The addition of the LSW switch can give immediate increases
in performance on the 10Mbps networks, and allows connectivity to be
maintained when network stations are transitioned over to 100Mbps
Fast Ethernet.
Figure 2-3 10/100Mbps Bridge Application
2.3 Installation
The LSW 10/100 Ethernet Switch is easy to install and requires no
special training. You should, however, read the following instructions
carefully before proceeding to install your switch. Figure 2-4 and Figure
2-5 show the layout of the front panels.
8
FULL/COL
LINK/ACT
12 3456 78910
LSW2F8
Hub Hub Hub
100BASE-TX
Workgroup
100Mbps 10Mbps 10Mbps
10BASE-T
Workgroup
10BASE-T
Workgroup
LSW2F8_16 Guide 3/18/99 12:17 PM Page 8 (1,1)
Figure 2-4 LSW2F8 Switch Front Panel
Figure 2-5 LSW2F16 Switch Front Panel
The LSW 10/100 switches were designed for easy Òplug and playÓ
installation. Before you connect your switch to other devices, there are
several issues you should keep in mind:
▼When connecting the LSW switch to a device using unshielded
twisted pair cable, you must make sure that the cable length is not
greater than 100 meters
▼10BASE-T Twisted Pair Ethernet cabling should be Category 3 or better
▼100BASE-TX Twisted Pair Fast Ethernet cabling should use tested
Category 5 cabling
▼Network cable segments can be connected to or disconnected from
the LSW 10/100 switch while the power is on
▼When placing your LSW switch, you need to avoid dusty locations
and electromagnetically noisy areas
9
1 2 3 4 5 6 7 8 9 10
12 345678910 Uplink
PWR
FULL/COL
LINK/ACT
PORT NO.
10/100 Mbps
LSW2F8
10/100
Uplink
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18
12 345678910
11 12 13 14 15 16 17 18
PORT NO.
FULL/COL
LINK/ACT
PWR
FULL/COL
LINK/ACT
PORT NO.
10/100 Mbps
LSW2F16
10/100
Uplink
Uplink
LSW2F8_16 Guide 3/18/99 12:17 PM Page 9 (1,1)
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