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ACCESS POINT
1. Introduction
This user guide provides an overview of the Wireless LAN Technology and
instruction for using the Access Point. Actually, Wireless LAN is a flexible data
communication system implemented as an extension to, or as an alternative for, a
wired LAN within a building or campus. Using electromagnetic waves, WLANs
transmit and receive data over the air, minimizing the need for wired connections.
Overall, we hope this document is helpful to give users a Clear View on the Access
Point and a better understanding of WLAN Technology.
1.1 Product Features
Flexible and standards-based (IEEE802.11b) interoperability.
64/128bits WEP key encryption for security.
MAC address registration function for security.
Communication between the Ethernet LAN and the wireless LAN.
AppleTalk protocol compatible.
Automatic Rate Fallback.
Association, Re-association and Disassociation.
Support three Operational Modes (Access Point, AP Client, Wireless Bridge).
Support Simple Network Management Protocol (SNMP).
DHCP Client-Default Gateway.
IP Filtering.
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ACCESS POINT
1.2 Network Overview
1.2.1 Infrastructure Mode
In an infrastructure network, the wireless device (such as Access Point) links the
WLAN to the wired network to offer users more mobilities in movement and
resources sharing within the network service area. It enables users to have freedom
from network cabling.
Figure 1 - Infrastructure mode
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ACCESS POINT
1.2.2 Microcells and Roaming
WLANs use cells, called microcells, similar to the cellular telephone system to extend
the range of wireless connectivity. At any point in time, a mobile PC equipped with a
WLAN adapter is associated with a single access point and its microcell, or area of
coverage. Individual microcells overlap to allow continuous communication within
wired network. They handle low-power signals and allow users to roam through a
given geographic area.
Figure 2 - Handling of WLAN connection between APs
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ACCESS POINT
1.3 Network Service Set Identification (SSID) Overview
On a wireless network, a mobile user can roam freely within the service area of the
Access Point with the same service Set Identification SSIDs without losing
connection to the wired network. In order for a mobile unit to roam seamlessly from
one Access Point to another, the SSIDs of all Access Points and the wireless LAN
cards must be the same.
Assigning SSIDs, can provide the following security:
To avoid different user-groups from accessing network resources other than their
own.
Ensure each user-group has access within its own network.
Assure different user-group has the same access to Ethernet segment.
Figure 3 illustrates the use off SSIDs in an environment containing multiple
infrastructure network configured to communicate in the same Ethernet segment.
SSIDs assure the 3 users of Group A can only access each other, but not other
infrastructure, such as Group B.
Figure 3 – SSID Assignments
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ACCESS POINT
1.4 Channel Services Overview
The Direct Sequence Spread Spectrum (DSSS) modulation has the effect of
suppressing radio frequency interference in the same frequency bands.
The IEEE 802.11b DSSS service is a channelized service, listed as Table 1.
Table 1 - Channel Usage by Country
Country Channels Used by the Access Point
United States 1 through 11
Canada 1 through 11
Europe 1 through 13
France 10 through 13
Spain 10 through 11
Japan 14
1.5 Requirement for a wireless connection
To install an Access Point, the hardware requirements are:
A supported LAN protocol stack (IPX/SPX or TCP/IP or AppleTalk)
For a 100 Base-TX / 10 Base-T Ethernet connection, a modular data cable with a
dual twisted pair cable terminated with a male RJ-45 modular jack
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ACCESS POINT
2. Installation AP
2.1 Package contents
Before using the Access point, please make sure that all the items listed below are
present in your package.
Wireless Access Point
5V DC power adapter
Installation CD
Quick Installation Guide
If any items are missing or damaged, please contact your dealer immediately.
2.2 Notice
1. Keep the Number of Wall and ceilings to a minimum. Each of Wall or Ceiling will
reduce 20-30% transmission range.
2. Make sure having the direct line among the Client WLAN card.
3. Keep your product away from electronic devices
4. Make sure that the antenna is positioned for best reception
5. Building Material make a difference. Normally a solid metal door or aluminum
studs may have a negative effect on range.
2.3 Installation Diagram
Figure 4 - Installation Diagram
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ACCESS POINT
2.4 Physical Description
1st – WLAN
(Wireless LAN lamp)
2nd – LAN
(LAN lamp)
3rd – PWR
(POWER lamp)
Figure 5 - Access Point Diagram
To install your Access Point, plug the power cord into the Access Point. When power
is applied and the network system has been loaded, please refer to Table 2 for the
LED activity:
Tab l e 2
LED Activity Description
1st Flashing (Green) Communicating with the wireless
LAN
2nd
On (Green)
Flashing (Green)
LAN connection is active
Communicating with the LAN
3rd On (Red) Power is on
2.5 Connecting to the Network
After installing the AP you can connect to the network when you have completed
network configuration of your wireless adapter.
2.6 AP Configuration (Install the SNMP Manager)
If you want to configure the AP (e.g.: Setting the AP’s IP address*), please refer to
Configuration AP and Installing SNMP Manager section. The electronic user manual
will guide you on how to install the
AP through the
Access Point SNMP Manager
Access Point SNMP Manager
.
and configure the
* You can connect to network without setting the AP’s IP address
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2.7 Default Setting
Functions Default
ACCESS POINT
Options
IP Address
Subnet Mask
Gateway
DHCP
Access Point Name
ESSID
SSID Broadcasting
Channel
Fragmentation Threshold
RTS Threshold
Rates
Authentication Type
Preamble Type
Rx Antenna
Tx Antenna
Operational Mode
192.168.100.2
255.255.255.0
0.0.0.0
Disable Enable/ Disable
AP-xxxxxx*
AP-xxxxxx*
Enable Enable/ Disable
10 1~14 (Depend on Regulatory Domain)
2346 256 ~ 2346
2346 0 ~ 2347
1/ 2/ 5.5/ 11 1, 2, 5.5, 11 Mbps
Both Open System/ Shared Key/ Both
Long Short/ Long
Diversity Left/ Right/ Diversity
Left Left/ Right/ Diversity
Access Point Access Point/ Access Point Client/ Wireless Bridge
User Password
Administrator Password
public
public
* Where xxxxxx are the last 6 digits of your devices MAC address.
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ACCESS POINT
3. Specification
3.1 Hardware Specification
Item Description
Data transfer rate 1, 2, 5.5, 11 Mbps and auto selective
Data Rates, Distance Range Indoor Range Outdoor Range
without
AP
with
AP
(May vary depending on operation
environmental)
Network Interface
Ethernet 10 Base-T / 100Base-TX (RJ45)*
Radio Specification
Modulation Technique Direct Sequence Spread Spectrum
Wireless LAN Standard Compliant with IEEE 802.11b
Frequency range 2.4-2.4835 GHz unlicensed ISM Band
Channels: USA and Canada 11 channels
Output Power MAX 14dBm(25mW)
EMC certification: U.S.: FCC part 15 class B