Teledex IWLAN User Manual

Airlink

User Manual

for

Universal Model

and

WLAN Ethernet Bridge Model

FCC Compliance

NOTE: This equipment has been tested and found to comply with the limits for a Class B & C
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.

-- Consult the dealer or an experienced radio/TV technician for help.

Any changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.

No special accessory is required to enable the equipment to comply with the emission limits.

This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter

IMPORTANT NOTE:
FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm
between the radiator & your body.

This device is intended only for OEM integrators under the following
conditions:

1) The antenna must be installed such that 20 cm is maintained between the antenna and
users, and

2) The transmitter module may not be co-located with any other transmitter or antenna,

3) For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for

2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to
the end-user regarding to Regulatory Domain change.

As long as 3 conditions above are met, further transmitter
the OEM integrator is still responsible for testing their end-product for any additional
compliance requirements required with this module installed (for example, digital device
emissions, PC peripheral requirements, etc.).

test will not be required. However,

IMPORTANT NOTE: In the event that these conditions can not be met, then the FCC

authorization is no longer considered valid and the FCC ID can not
In these circumstances, the OEM integrator will be responsible for re-evaluating the end product
(including the transmitter) and obtaining a separate FCC authorization.

be used on the final product.

End Product Labeling

This transmitter module is authorized only for use in device where the antenna may be installed
such that 20 cm may be maintained between the antenna and users. The final end product must
be labeled in a visible area with the following: “Contains FCC ID: DXAIWLAN”.

Manual Information To the End User

The OEM integrator has to be aware not to provide information to the end user regarding how to
install or remove this RF module in the user’s manual of the end product which integrates this
module.

The end user manual shall include all required regulatory information/warning as show in this
manual.

Contents

INTRODUCTION............................................................................................................. 1

THE PRODUCT.................................................................................................................. 1

PRODUCT FEATURES........................................................................................................ 1

BASIC IP NETWORKING ................................................................................................... 2

WIRELESS LAN BASICS................................................................................................... 3

GETTING STARTED ...................................................................................................... 5

CONNECTING EXPRESSPORT ADAPTER............................................................................. 5

EXPRESSPORT ADAPTER CONFIGURATION ....................................................... 6

WEB CONFIGURATION ..................................................................................................... 6

BASIC CONFIGURATION ................................................................................................. 8

ADMINISTRATION ....................................................................................................... 8

LOCATION................................................................................................................... 8

IP CONFIGURATION .................................................................................................... 8

OPERATION MODE ...................................................................................................... 9

ADVANCE CONFIGURATION ......................................................................................... 11

RADIO SETTING ........................................................................................................ 11

WPA SECURITY........................................................................................................ 12

SECURITY SERVER SETTINGS .................................................................................... 12

NON-WPA SECURITY............................................................................................... 13

PROTOCOL ................................................................................................................ 14

MISCELLANEOUS ...................................................................................................... 14

STATUS.......................................................................................................................... 16

SYSTEM STATUS ....................................................................................................... 16

ASSOCIATION STATUS............................................................................................... 16

SUPER USER .................................................................................................................. 17

SUPER USER.............................................................................................................. 17

IRMWARE UPGRADE................................................................................................ 17

F
F

IRMWARE VERSION ................................................................................................. 18

Introduction

The Product

The product is based on the IEEE 802.11g standard, which is the latest 54Mbps Wireless LAN
(WLAN) standard. This standard is five times faster than the widely deployed WiFi (802.11b)
products that are found in homes, airport and public wireless hotspots. Because 802.11g uses the
same 2.4GHz frequency band, the product is fully interoperable with existing WiFi cards and
devices.

Having two wireless protocols in one product ensure that your investments are protected, while
enabling you to enjoy the fastest Wireless LAN speed.

The product is a combination of 3 devices:

a. Wireless LAN Access Point (AP) compliant to 802.11b and 802.11g standards.
b. Wireless Ethernet Bridge.
c. VDSL Converter.

The product is an all-in-one device that allows multiple PCs to share a network.

Product Features

Fully compatibility with IEEE 802.11g WLAN standard
Wireless data rate of up to 54Mbps

2.4GHz license-free frequency band
Full backward compatibility with 802.11b standard (WiFi 11Mbps)

802.1x Authentication. Used with a RADIUS server to check and verify the identity of
WLAN users.

WEP (Wired Equivalent Privacy). A simple WLAN encryption standard to protect wireless

data from sniffers.

WPA (WiFi Protected Access). An improved WLAN encryption standard where the secret

key changes automatically at regular intervals.

TKIP (Temporal Key Integrity Protocol). When used with a corporate RADIUS

server, the WLAN encryption key is changed regularly. Used for high security
enterprise networks.

Pre Shared Key. For the home user without a RADIUS server. A new key is

generated each time the PC connects.
Intuitive Web-based configuration
Access Control List provides added security

1

Basic IP Networking

IP = Internet Protocol

IP stands for Internet Protocol. In an IP network, every device has a unique IP Address (For
example: 192.168.1.35) to identify itself. There are two ways of assigning an IP address to a PC
or Router: Static and Automatic (DHCP). Static IP addresses are keyed-in manually, while
Dynamic IPs are distributed by a DHCP Server.

Ports

Every packet of traffic is identified by its Source and Destination Addresses, which would ensure
that the packet arrives at the correct destination. A Port Number is also embedded in each
packet; to identify which software application that generated and uses that packet. Therefore, if
ExpressPort adapter blocks a certain port number, it denies the particular software from using the
connection.

Static IP Address

Static IP addressing ensures that the device will always have the same IP address. Static
addressing is commonly used for your servers.

Dynamic IP Address

A dynamic IP address is one that is automatically assigned to a PC. These IP addresses are
“dynamic” because they are only temporarily leased to the PC when it connects to the network.
This is the most convenient and common way of managing IP addresses in a network. The
Server that manages this pool of IP addresses is called the DHCP Server. The product has a
DHCP Server built-in to simplify the network management.

DHCP (Dynamic Host Configuration Protocol)

The PC obtaining an IP address from the Server is called the DHCP Client. If there is already a
DHCP Server running on your network, you must disable one of the two DHCP servers. Running
more than one DHCP server together will cause network problems!

2

Wireless LAN Basics

A Wireless LAN (WLAN) is a computer network that transmits and receives data with radio
signals instead of using cables. WLANs have become common in homes, offices, airports and
public Hotspots. WLAN can support the same applications and software that run on a wired
network (LAN). Besides supporting the same software and functions, WLAN brings greater
convenience and eliminates the need to lay Ethernet cables in a home or office.

The ExpressPort adapter is based on the finalised 802.11g standard. The IEEE 802.11g standard
is an improvement on the 802.11b (WiFi) standard. It increases the data rate up to 54 Mbps
within the 2.4GHz band. As the 802.11b standard is also using the 2.4GHz frequency band, the
product is fully backward compatible with the older 802.11b devices. WiFi cards can be used to
connect to ExpressPort adapter at 11Mbps.

The ExpressPort adapter is also known as the Wireless Access Point (AP). The PC using the
Cardbus is known as the Client. WLAN networking involves a few additional parameters to be
configured:

SSID

The SSID is the “network name” for the WLAN network. The SSID is any name, and can be any
set of characters or numbers, and must be configured on both the AP and Client. The Client sniffs
the radio frequencies for an AP with the same SSID with itself. The client locks onto the AP and
they are “associated”.
To enable plug-and-play convenience, most client cards can sniff the frequencies to extract the
available SSIDs to let the user choose from.

Encryption

WLAN traffic can be captured by anybody to be read! The solution is to use encryption to make
the traffic appear as random characters to the eavesdropper. Both the AP and client must use the
same encryption standard and key to enable them to decode the “rubbish”. If the encryption
settings are mismatched, the client and AP cannot associate. WEP (Wired Equivalent Privacy) is
the most common WLAN encryption standard.

MAC Address Control

Every client card has a unique MAC Address. This MAC Address can be input into the AP
(Router), such that the AP only allows this pool of MAC Addresses to use the WLAN.

Channel

There are a total of 13 channels in the 2.4GHz band. Depending on regulation, not all the
frequencies may be available in every country. Frequency is configured on the AP only. The client
searches for the AP and locks onto that AP’s channel.

Signal Strength

Radio signals drop in power over a distance. Even if all the settings are correct, a low signal
strength makes association impossible. The usable distance between the AP and client can
range from a few meters indoor to 200m outdoors maximum. When setting up the AP, make sure
that you:

Keep the distance from the AP to the clients as short as possible.
Make sure that the WLAN signals do not have to pass through too many concrete walls

and metal structures to reach the client.

Make sure that APs are located far away from one another to avoid interference.

3