Lantronix Switch LSW2F8 User Manual

LSW2F8, LSW2F16  
10/100 Ethernet  
Switch  
Installation Guide  
 
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
 
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
 
1.3 Product Specifications  
Standards  
IEEE 802.3 10BASE-T Ethernet  
IEEE 802.3u 100BASE-TX Fast Ethernet  
Architecture  
Connectors  
Store and forward switching  
LSW2F8 8x10BASE-T/2 100BASE-TX (RJ-45) Fast  
Ethernet ports  
LSW2F16 16x10BASE-T/2 100BASE-TX (RJ-45) Fast  
Ethernet ports  
Uplink ports  
Duplex mode  
Push button to select Uplink or Normal  
connections: Port 1 and Port 10  
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
 
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.  
5
 
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  
10  
9
8
7
5
6
3
4
2
FULL/COL  
LINK/ACT  
1
Workgroups  
Fileserver  
(100Mbps)  
Fileserver  
(100Mbps)  
6
 
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  
10  
FULL/COL  
LINK/ACT  
9
8
7
5
6
3
4
FULL/COL  
LINK/ACT  
2
1
To 100Mbps  
Ethernet Backbone  
Workgroup  
(10Mbps shared)  
Workgroup  
(10Mbps shared)  
Fileserver  
(100Mbps)  
7
 
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  
10  
9
8
7
5
6
10Mbps  
3
4
FULL/COL  
LINK/ACT  
2
1
10Mbps  
100Mbps  
10BASE-T  
Workgroup  
10BASE-T  
Workgroup  
100BASE-TX  
Workgroup  
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
 
Figure 2-4 LSW2F8 Switch Front Panel  
10/100  
LSW2F8  
10/100 Mbps  
FULL/COL  
LINK/ACT  
1
2
3
4
5
6
7
8
9
10  
Uplink  
1
2
3
4
5
6
7
8
9
10  
Uplink  
PORT NO.  
Figure 2-5 LSW2F16 Switch Front Panel  
11  
12 13 14  
15 16 17 18  
11  
12  
13  
14  
15  
16  
17  
18  
PORT NO.  
FULL/COL  
LINK/ACT  
10/100  
LSW2F16  
10/100 Mbps  
FULL/COL  
LINK/ACT  
1
2
3
4
5
6
7
8
9
10  
Uplink  
1
2
3
4
5
6
7
8
9
10  
Uplink  
PORT NO.  
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
 
2.4 Mounting  
Your LSW2F8 or LSW2F16 switch is delivered with two brackets for  
mounting the switch in an EIA standard 19-inch rack. Secure the  
mounting brackets onto the sides of the LSW switch, fastening them  
with screws as shown in Figure 2-6.  
Figure 2-6 Mounting Bracket Installation  
10  
9
8
7
5
6
3
4
2
FULL/COL  
LINK/ACT  
1
If your site uses only a few switches and is not equipped with a  
mounting rack, you may choose to place the LSW switch on a table or  
wiring closet shelf. In this case, use the four self-adhesive rubber feet,  
which are provided with the switch for cushioning purposes. Stick  
them at the four corners of the bottom surface of the LSW switch to  
cushion it against vibration.  
10  
 
2.5 Connecting the LSW Switch  
Use the following procedures to connect 10BASE-T or 100BASE-TX net-  
work devices to the LSW switch:  
LSW2F8  
LSW2F16  
Ports 2-9  
Ports 2-18  
Port 1 & Port 10  
Normal Uplink  
PC, Workstation  
Server  
S
S
S
C
S
C
S
C
S
Hub, Switch port  
Hub, Switch uplink port  
C
S
C
S = Straight Cable C = Crossover cable  
The following table describes the two cable types:  
Straight cable  
TD+  
Crossover cable  
Pin 1  
Pin 2  
Pin 3  
Pin 6  
RD+  
RD-  
TD+  
TD-  
TD-  
RD+  
RD-  
Make sure that the length of the straight-through cable between the  
switch and the other device does not exceed 100 meters, including all  
patch cables and cross-connect wires.  
Duplex mode: each 10/100 port (Ports 1 and 2) can detect duplex mode  
automatically Ð the device being connected to must support 802.3u  
autonegotiation for full duplex to be used; duplex mode for 10Mbps  
ports can be selected via switches on the back of the unit.  
11  
 
Chapter 3 LED Indicators  
Figure 3-1 shows the LED indicators, which indicate the link status of  
each of the ports, whether the LSW switch is receiving power, and the  
presence of network activity and collisions on the network.  
Figure 3-1 LSW2F16 Front Panel LED Indicators  
11  
12 13 14  
15 16 17 18  
PORT NO.  
FULL/COL  
LINK/ACT  
Full-  
Duplex/Collision  
Link/Activity  
10/100  
LSW2F16  
10/100 Mbps  
FULL/COL  
LINK/ACT  
10/100Mbps  
Full-  
1
2
3
4
5
6
7
8
9
10  
PORT NO.  
3.1 Power LED  
The LED on the front panel labeled PWR is used to indicate that the  
switch is receiving power and is turned on. If the LED is off, check the  
following to isolate the problem:  
Make sure the power cord is properly connected to the power outlet  
and is properly inserted into the power connection on the switch  
Determine whether or not the outlet is functional by plugging  
another device into the receptacle  
Turn the power switch to the ON position. If there are no problems  
and the LED still does not light, contact your dealer  
3.2 10/100 Mbps LEDs  
Each 10/100 port (Ports 1 and 2) have the 10/100Mbps LED on the front  
panel. When the LED is ON, it indicates the port is in 100Mbps mode.  
Otherwise, its working in 10Mbps mode.  
12  
 
3.3 Full/Col: Full or Half Duplex/Collision LEDs  
Each port has a full duplex/half duplex/Collision LED on the front  
panel labeled Full/Col. On normal status, this LED indicates that trans-  
mission of selected ports is full duplex or half duplex (ON: Full duplex,  
OFF: Half duplex). Also this LED is used to indicate collision status.  
When two or more stations on the network segment attempted to trans-  
mit at the same time, a collision occurs, all of the stations involved in  
the collision will recognize the collision, wait a random amount of time,  
and retransmit. At this moment, this LED will blink on briefly.  
3.4 Link/Activity LEDs  
Each port on the LSW2F8 and LSW2F16 has a Link/Activity LED  
which indicates whether a device is detected on the other end.  
When the port is in Link OK status, this LED also used to indicate  
activity on the network segment. Whenever data is transmitted and/or  
received through the network segment that the port is connected to, the  
LED should blink on briefly.  
LED summary table  
PWR  
Green  
Green  
Yellow  
ON=Unit is receiving power  
ON=100Mbps; OFF=10Mbps  
10/100Mbps  
Full/Col  
ON=Full Duplex; OFF=Half Duplex;  
Flashing=Collision  
Link/Act  
Green  
ON=Good Link; Flashing=Activity  
13  
 
Limited Warranty  
The LSW2F8 and LSW2F16 come with 5-year limited warranties. To  
obtain LantronixÕs full warranty statement or if you experience prob-  
lems with your unit, check our website (www.lantronix.com) or call  
Lantronix for assistance.  
Copyright © 1998, Lantronix. All rights reserved. No part of the con-  
tents of this guide may be transmitted or reproduced in any form or by  
any means without the written permission of Lantronix.  
Technical Support  
If problems occur during product operation, please check the adaptor  
configuration settings, cables, connectors, network terminators and other  
network components for compatibility.  
Write a description of the problem, including what problems occurred and  
when they occurred. Also, please have the following information ready  
if calling for support services:  
Model number & serial number  
Purchase date  
Network configuration  
Application environment  
Hardware, software (NOS) and the DOS version  
Contact Lantronix technical support at 800-422-7044 within the United  
States or 949-453-3990 outside of the United States. LantronixÕs techni-  
cal support can also be reached via email at [email protected],  
at 949-450-7226.  
14  
 
WARNING!  
This device complies with part 15 of the FCC rules. Operation is subject  
to the following conditions: (1) this device may not cause harmful  
interference, and (2) this device must accept any interference received,  
including that which may cause undesired operation. Operation of this  
equipment in a residential area is likely to cause interference in which  
case the user, at his or her own expense, will be required to take what-  
ever measures may be required to correct the interference.  
NOTE: The RJ45 ports are not for telephone use.  
CAUTION:  
Not for installation in air ducts, plenums or other environmental  
air handling spaces. Changes or modifications to this device not  
explicitly approved by Lantronix will void the userÕs authority  
to operate this device.  
15  
 
Declaration of Conformity  
(according to ISO/IEC Guide 22 and EN 45014)  
ManufacturerÕs Name: Lantronix  
ManufacturerÕs Address: 15353 Barranca Parkway  
Irvine, CA 92618 USA  
declares, that the product:  
Product Name: 10/100 Ethernet Switches  
Model Number: LSW2F8, LSW2F16  
conforms to the following standards:  
EMC: EN55022(1988)/CISPR 22(1985)  
EN60555-2(1987)  
Class B  
Class A  
prEN55024-2(1990)/IE801-2(1991)  
prEN55024-3(1991)/IE801-3(1984)  
prEN55024-4(1992)/IE801-4(1988)  
4KV CD, 8KV AD  
3V V/m  
1KV - (power line)  
0.5KV - (signal line)  
ManufacturerÕs Contact: Director of Quality Assurance  
Lantronix  
15353 Barranca Parkway  
Irvine, CA 92618 USA  
Tel: 949-453-3990  
Fax: 949-453-3995  
16  
 
15353 Barranca Parkway, Irvine, CA 92618  
949-453-3990 Fax: 949-453-3995 Sales: 800-422-7055 Support: 800-422-7044  
PART NO. 900-140 Rev.A  
 

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