3Com Router WL-537 User Manual

							
Front Panel15
■The Router has just been started up a nd is running a self-test routine, 
or
■The administrator has invoked the  Reset to Factory Defaults 
command, or
■The system software is in the pr ocess of being upgraded
In each of these cases, wait until the Router has completed the current 
operation and the alert LED is Off.
Flashing slowly  - The Router has completed the  Reset to Factory Defaults
process, and is waiting for you to reset the unit. To do this, remove 
power, wait 10 seconds and then re -apply power. The Router will then 
enter the start-up sequence and resume normal operation.
On for 2 seconds, and then off  - The Router has detected and prevented 
a hacker from attacking your network from the Internet.
Continuously on  - A fault has been detected with your Router during the 
start-up process. Refer to  Chapter 6
“Troubleshooting”.
2Power LED Green
Indicates that the Router is powered on.
3 Wireless LAN (WLAN) Status LED 
Yellow
If the LED is on it indicates that wireless networking is enabled. If the LED 
is flashing, data is being transmitted or received. If the LED is off, the 
Wireless LAN has been disabled in the Router, or there is a problem. Refer 
toChapter 6
“Troubleshooting”.
4 Four LAN Status LEDs
Green (100 Mbps link) / yellow (10 Mbps link)
If the LED is on, the link between the port and the next piece of network 
equipment is OK. If the LED is flashing,  the link is OK and data is being 
transmitted or received. If the LED is off, nothing is connected, the 
connected device is switched off, or there is a problem with the 
connection (refer to  Chapter 6
“Troubleshooting”). The port will 
automatically adjust to the  correct speed and duplex. 
						

							
16CHAPTER 1: INTRODUCING THE ROUTER
5 Cable/DSL Status LED
Green (100 Mbps link) / yellow (10 Mbps link)
If the LED is on, the link between the Router and the cable or DSL modem 
is OK. If the LED is flashing, the link is OK and data is being transmitted or 
received. If the LED is off, nothing is connected, the modem is switched 
off or there is a problem (refer to  Chapter 6
“Troubleshooting”).
Rear PanelThe rear panel (Figure 4) of the Router contains four LAN ports, one 
Ethernet Cable/DSL port, a power adap ter OK LED, and a power adapter 
socket.
Figure 4    Router - Rear Panel
6 Wireless Antennae
The antennae on the product should be placed in a ‘V’ position when 
initially installed.
CAUTION: Do not force the antenn ae beyond their mechanical stops. 
Rotating the antennae further may cause damage.
7 Power Adapter Socket Only use the power adapter supplied with this Router. Do not use any 
other adapter.
8 Power Adapter OK LED Green
Indicates that the power adapter is supplying power to the Router. If the 
LED is off, there may be a problem with  the power adapter or adapter 
cable. 
						

							
Rear Panel17
9 Ethernet Cable/DSL port
Use the supplied patch cable to connect  the Router to the Ethernet port 
on your cable or DSL modem. The port will automatically adjust to the 
correct speed and duplex, and will set itself to MDI or MDIX depending 
on the device to which they are  connected and the type of cable used.
10 Four 10/100 LAN ports
Using suitable RJ-45 cable, you can connect your Router to a computer, 
or to any other piece of equipment that ha s an Ethernet connection (for 
example, a hub or a switch). The LAN ports will automatically set 
themselves to MDI or MDIX depending on the device to which they are 
connected and the type of cable used. 
						

							
18CHAPTER 1: INTRODUCING THE ROUTER 
						

							
2
HARDWARE INSTALLATION
IntroductionThis chapter will guide you through a basic installation of the Router, 
including:
■Connecting the Router to the Internet.
■Connecting the Router to  your network.
■Setting up your computers for ne tworking with the Router.
Safety Information WARNING: Please read the  “
Safety Information” section in Appendix D
before you start.
VORSICHT:  Bitte lesen Sie den Abschnitt  “
Wichtige Sicherheitshinweise”
sorgfältig durch, bevor Sie das Ger ät einschalten.
AVERTISSEMENT:  Veuillez lire attentivement la section  “
Consignes 
importantes de sécurité” avant de mettre en route.
Positioning the 
RouterYou should place the Router in a location that:
■is conveniently located for connection to the cable or DSL modem that 
will be used to connect to the Internet.
■is centrally located to the wireless computers that will connect to the 
Router. A suitable location might be on top of a high shelf or similar 
furniture to optimize wireless connections to computers in both 
horizontal and vertical directions, allowing wider coverage.
■allows convenient connection to the computers that will be connected 
to the four LAN ports on the rear panel, if desired.
■allows easy viewing of the front panel LED indicator lights, and access 
to the rear panel connectors, if necessary. 
						

							
20CHAPTER 2: HARDWARE INSTALLATION
When positioning your Router, ensure:
■It is out of direct sunlight and away from sources of heat.
■Cabling is away from power lines, fluor escent lighting fixtures, and 
sources of electrical noise such as radios, transmitters and broadband 
amplifiers.
■Water or moisture cannot enter the case of the unit.
■Air flow around the un it and through the vents in the side of the case 
is not restricted. 3Com recommends you provide a minimum of 
25 mm (1 in.) clearance.
Using the Rubber FeetUse the four self-adhesive rubber feet to
 prevent your Router from 
moving around on your desk or when stacking with other flat top 
OfficeConnect units. Only stick the fe et to the marked areas at each 
corner of the und erside of your Router.
Stacking the Router If you are stacking your Router with other OfficeConnect units, install the 
Router at the top of the stack. Refe r to the documentation supplied with 
your other OfficeConnect unit for  details on using the stacking clip.
A stacking clip is not supplied with  the Router. Use the stacking clip 
supplied with another stackable OfficeConnect unit.
Wall MountingThere are two slots on the underside of the Router that can be used for 
wall mounting. 
When wall mounting the unit, ensure that  it is within reach of the power 
outlet.
You will need two suitable screws to wall mount the unit. To do this:
1 Ensure that the wall you use is smooth,  flat, dry and sturdy and make two 
screw holes which are 150 mm (5.9 in.) apart.
2 Fix the screws into the wall, leaving their heads 3 mm (0.12 in.) clear of 
the wall surface.
3 Remove any connections to the unit and locate it over the screw heads. 
When in line, gently push the unit on  to the wall and move it downwards 
to secure.  
						

							
Before you Install your Router21
When making connections, be careful not to push the unit up and off the 
wall.
CAUTION:Only wall mount single unit s, do not wall mount stacked 
units.
Before you Install 
your RouterBefore you install and configur e your Router, you need the following 
additional information. If you do not  have this information, contact your 
Internet Service Provider (ISP). Space is provided below for you to record 
this information.
If you have a DSL connection and your ISP allocates IP information 
dynamically over PPPoE, you need a User Name and Password:
You only need a PPPoE Service Name if your ISP requires one. Do not 
enter anything if your ISP  does not require this information.
If you have a DSL connection and your ISP allocates IP information 
dynamically over PPTP, you need a User  Name, Password and PPTP Server 
Address:
PPPoE User Name : ______________________
PPPoE Password : ______________________
PPPoE Service Name : ____ __________________
PPTP User Name : ______________________
PPTP Password : ______________________
PPTP Server Address :  ____.____.____.____ 
						

							
22CHAPTER 2: HARDWARE INSTALLATION
If your ISP allocates fixed or static IP information, you need the following 
information:
If your ISP allocates IP information dynamically over  a protocol other than 
PPPoE, you do not need any further information. This configuration is 
typical of cable connections.
Powering Up the 
RouterTo power up the Router:
1 Plug the power  adapter into the power adapter socket located on the 
back panel of the Router.
2 Plug the power adapter into a sta ndard electrical wall socket.
Connecting the 
RouterThe first step for installing your Ro uter is to physically connect it to a 
cable or DSL modem and then connect it to a computer in order to be 
able to access the Internet. See  Figure 5
:
IP Address  : ____.____.____.____
Subnet Mask  : ____.____.____.____
Default Router address : ____.____.____.____
DNS address  : ____.____.____.____ 
						

							
Connecting the Router23
Figure 5   Connecting the Router
To use your Router to conn ect to the Internet through an external cable 
or DSL modem:
1 Insert one end of the supplied Ethernet (RJ-45 Category 5) cable into the 
Cable/DSL port on the rear panel of the Router.
2 Insert the other end of th e cable into the RJ-45 port on your cable or DSL 
modem. Check that the Cable/DSL status LED lights on the Router.
3 Connect the cable or DSL modem to the Internet.
4 Connect your computer to one of the fo ur LAN ports on the Router using 
a Category 5 twisted pair cable. Check  that the corresponding LAN status 
LED on the Router lights.
You have now completed the hardware installation of your Router. Next 
you need to set up your computers so that  they can make use of the 
Router to communicate with the Internet.
3Com recommends that you perf orm the initial Router configuration 
from a computer that is directly connected to one of the LAN ports. 
If you configure the Router from a  wireless computer, note that you may 
lose contact with the Router  if you change the wireless configuration.
InternetYour existing 
Cable/DSL Modem
Power
Supply Unit
Your PC Wireless
Users
11g Cable/DSL 
Router
P
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W ER
O
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ab
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/
D
SL
4
32 1
LA N
1
2
V D
C
1 .
2
5A MAX 
						

							
24CHAPTER 2: HARDWARE INSTALLATION
To communicate wirelessly with your  Router, your wireless NIC should be 
set as follows:
■Encryption — none
■Service Area Name/SSID — 3Com
■Channel — 11