Planex GW-AP11S, GW-AP11T User Manual

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11Mbps WIRELESS LAN ACCESS POINT

GW-AP11S/AP11T

11Mbps WIRELESS LAN ACCESS POINT

GW-AP11S/AP11T

USER'S MANUAL

Trademarks

Copyright @2002 PLANEX COMMUNICATIONS INC. Contents subject to change without prior notice. Pci is a registered trademark of PLANEX COMMUNICATIONS INC. All other trademarks belong to their respective proprietors.

No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from PLANEX COMUNICATIONS INC.

FCC Warning

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this user's guide, may cause harmful interference to radio communications. H o w e v e r, 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 the receiver

● Connect the equipment into an outlet on a circuit different from the one

which the receiver is connected to

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

You are cautioned that changes or modifications not expressly approved by

the party responsible for compliance could void your authority to operate the equipment. Warnings: Wear an antistatic wrist strap to take other suitable measures to prevent electrostatic discharge whenever handling the equipment.

VCCI Note

This is a VCCI Class B product.

Appendix A

Appendix B

Version:1.0 E Rev.A

Chapter 2

Installation

Explains how to install the GW-

AP11S/AP11T on your computer.

About this Manual

Appendices

Chapter 1

Introduction

Provoides product overview and parts

terminology. Please be sure to read this

chapter first.

Environmental Requirements

Provides environmental factors to keep in mind when you install the wireless LAN access

point.

This manual contains the following chapters and apprnices:

Specifications.

Provides the technical product specifications of the GW-AP11S/AP11T

Chapter 3

Software Installation

Describes how to install the 1.USB Driver and the 2.Configuration Utility of the GW-

AP11S/AP11T

Chapter 4

Setting Up the Access Point via USB

Config Utility

Explains how to use the supplied utility to

configure the product via USB.

Chapter 5

Setting Up the Access Point via SNMP

Utility.

Describes how to use the supplied utility

to configure the product via the SNMP

protocol.

Verifying the Installation..................................

Deleting the USB Driver....................................

Installing the Access Point Utility....................

Chapter 4 Setting Up the Access Point via

USB Config Utility......................

Chapter 5 Setting Up the Access Point via

SMNP Utility

Main Window ...................................................

Configuration Window.....................................

Appendix A

Environmental Requirements............................

Appendix B

Specifications ....................................................

GW-AP11S/AP11T

15 17 18

35 38

GW-AP11S/AP11T

Chapter 1 Introduction

Product Overview ............................................

Features ............................................................

Package List......................................................

Parts Terminology ...........................................

Chapter 2 Installation

Environmental Requirements ........................

Installing the Access Point...............................

Connecting the AC Adapter to the GW-AP11S/AP11T

............................................................................

Connecting the GW-AP11S to a Hub ............

Connecting the GW-AP11S to a PC

....................

Selecting the Operation Mode of the GW-AP11S/AP11T

...........................................................................

Chapter 3 Software Installation

Installing the USB Driver ...............................

1 2 3 4

2 3 4 4

8 8

8 9 9

3 4

1 2

4 5

1 2

Chapter 1

Introduction

The GW-AP11S is a bridge that interfaces between a wireless LAN network and an existing Ethernet network. By using the GW-AP11S/AP11T Access Point, you can seamlessly establish and integrate a wireless LAN network into your existing Ethernet network and resources therein. The Access Point complies with IEEE802.11 and IEEE802.11b, and supports data transfer at 11Mbps/5.5Mbps/2Mbps and 1Mbps. As the device supports Roaming, wireless nodes (users) can communicate with other nodes while they move between service sets: the users need not specify or detect a new access point. The GW- A P 11 S / A P 11T also utilizes powerful security features including ESSID and WEP to protect the network from unauthorized accesses.

1-1 Sample Wireless LAN Layout

Overview

GW-AP11S/AP11T

The product package should contain the following items:

● GW-AP11S.AP11T Wireless LAN Access Point

● AC adapter

● Setup Utility CD-ROM

● This user's manual

● USB cable

If any item is found missing or damaged, please contact your local PCI reseller or our technical support for replacement.

A movable diversity antenna is equipped on top of the GW-AP11S/AP11T.

1-2 GW-AP11S Front View

GW-AP11S/AP11T

● Complies with IEEE 802.11/802.11b

● Supports IEEE802.3 10BASE-T

● USB 1.1 compliant

● Complies with ARIB STD-33A/STD-T66

● Noise-resistant DS-SS data transfer scheme

● Frequency range: 2.4Ghz (14 channels)

● Automatically detects appropriate speed (11Mbps/5.5Mbps/2Mbps/

1Mbps)

● Robust network security achieved via ESSID, WEP and MAC address

filtering

● Communication range: 100m maximum (line-of-sight distance, indoor

use)

● Employs a highly sensitive diversity antenna

● 3 LED indicators clearly indicate the working status of the access point

● Equipped with a USB port for configuration via a console running a

management utility

● Supports Inter-AP (AP-to-AP) Communication Mode

● Supports Station Mode which incorporates existing network cards and

print servers into a wireless LAN

● Supports Roaming: the users can freely move among different access

points

● Comes with a setup utility

Features

Packing List

Parts Terminology

GW-AP11S/AP11T

The rear panel of the access point provides a USB port and an RJ-45 port. A PC can be attached to the USB port on the GW- A P 11 S / A P 11T to configure the product, while the RJ-45 port is used to connect the product to a hub.

1-3 Rear View

Power Jack:

The supplied AC adapter attaches to this DC power jack.

RJ-45 Port:

A 10BASE-T twisted-pair cable connects to this RJ-45 port. This port serves as an Uplink port.

USB:

This port is used to configure the access point via a PC running the supplied management (configuration) utility.

GW-AP11S/AP11T

1-3 GW-AP11T Front View

The on-board three LED

's indicate the working status of the access point:

Power LED:

This LED illuminates when the power of the access point is turned on.

LAN LED:

This LED glows whenever a 10Mbps data link is established on the port.

Wireless:

The LED flashes when the wireless interface is available.

GW-AP11S/AP11T

Before proceeding, please take a minute to review the safety guidelines described in the Safety Instructions above. Also, be sure to follow the additional guidelines below.

● Do not place the product in a damp or wet location.

● Always avoid dust and dirt.

● Do not install the product in an area exposed to direct sunlight.

● Allow some space between the product and the surroundings to facilitate

dissipation of heat generated inside the hub.

Always place the product on a level surface (ex. desktop). Avoid placement on an unstable (or uneven) surface.

1. Attach the supplied AC adapter to the power jack on the rear panel.

2. Connect the AC adapter to a wall outlet.

3. Verify that the Power LED on the front panel illuminates.

Caution:

Use only the supplied AC adapter. Any attempt to use another AC adapter may result in malfunction of and/or serious damage to the switch. The product warranty does not support damages caused by the use of an unsupported AC adapter.

Chapter 2

Installation

Environmental Requirements

Installing the Access Point

Connecting the AC Adapter to the GW-

AP11S/AO11T

To attach the GW-AP11S/AP11T to a wireless LAN and a wired LAN, the product must be first connected to a hub.

1. Prepare a twisted-pair cable with RJ-45 plugs at both ends. Cable length should not exceed 100 meters (328 feet), and cable type must be Category 3, 4 or 5.

2. Attach one end of the cable to one of the normal RJ-45 ports on the hub.

3. Attach the other end of the able to the LAN port on the Access Point. The LAN LED will illuminate if the hub is working properly.

To use the access point in Station Mode, the LAN port on the product must be directly connected to the LAN port of your PC via a crossover LAN cable.

1. Obtain a crossover LAN cable. Its length should not exceed 100 meters.

2. Attach one end of the LAN cable to the LAN port of your PC.

3. Attach the other end of the crossover cable to the LAN port on the access point. The LAN LED on the front panel will illuminate if the LAN port (adapter) on the PC is working properly.

While the GW-AP11S/AP11T functions as an IEEE802.11b access point, it also supports the following two operation modes:

GW-AP11S/AP11T

■ Station Mode

In this mode, the access point (AP) is attached to the LAN port of a PC to serve as a client on a wireless network. This mode supports Infrastructure Mode as defined in IEEE802.11b. By connecting the access point to a PC preinstalled with a network card, you can add the AP to your wireless network as a member node.

2-1 Station (Infrastructure) Mode

■ Inter-AP Communication Mode

This mode enables AP-to-AP communication. In this mode, one AP may communicate with n (multiple) AP's.

Connecting the GW-AP11S/AP11T to a Hub

Connecting the GW-AP11S/AP11T to a PC

Selecting the Operation Mode of the GW-

AP11S/AP11T

This chapter provides step-by-step installation procedures for the USB driver as well as the configuration utility of the access point.

1. Attach the Type B connector of the supplied USB cable to the USB

upstream port (Type B connector) on the access point.

2. Attach the Type A plug of the USB cable to the USB port on your PC or a USB hub. If you intend to connect the access point to a USB hub, verify that the USB hub is working in the self-power mode. (The USB hub may

NOT draw power from the access point.)

● When attaching the access point to a PC, you may use any USB port on

the PC

1211

GW-AP11S/AP11T

2-2 Inter-AP Communication Mode

Note:

AP's configured to the Inter-AP mode can only be accessed from other AP's set to the same mode. (AP's running in the Inter-AP mode can NOT be accessed from those running in any other mode.)

Chapter 3

Software Installation

Installing the USB Driver

GW-AP11S/AP11T

3. The Add New Hardware wizard will start as soon as the access point is attached to the USB port on the PC (or USB hub). Click on Next.

4. Select " Search for the most appropriate driver for the device in use” and click Next.

● If the Hardware Wizard does not start even when the access point is

connected to a USB hub, make sure that enough power is supplied to the USB hub.

5. In the next screen, check only [Specify the search area] and remove check marks from all other check boxes. Enter "D : \ G W-

A P 11T\usbdriver" ( if your product is GW-AP11S, please Enter "D:\GW-AP11S\usbdriver") in the provided field (if your CD-ROM drive is Drive D). Click Next.

6. Insert the supplied CD-ROM into the CD-ROM drive of your PC and click Next. When the " driver file for the following device will be searched" message appears, click Next.

GW-AP11S/AP11T

7. The OS will start copying the driver files to your system. After the file copy has completed, follow the instructions on screen and click on the Finish button.

After the driver installation has completed, follow the procedure below to verify that the driver files have been installed properly.

1. Double-click [My Computer] and then [Control Panel].

2. Double-click [System]. In the System Properties window, click on the

Device Manager tab.

Click on the "+" symbol on the left of [GeoWave AP11 S / A P 11T USB Devices] and see if "GeoWave AP11S USB BRIDGE" is visible. If you don't see " GeoWave AP11 S / A P 11T USB BRIDGE " but a "?" or "!" symbol appears on the icon, it means that the driver installation has not completed successfully. Delete the drivers following the procedure described in Section 3-3, and go to Section 3-1 to reinstall the drivers.

Verifying the Installation

GW-AP11S/AP11T

Follow the steps below to delete the USB driver.

Double-click [My Computer] and then [Control Panel].

2. Double-click [System] to open the System Properties window. Click on \ the Device Manager tab.

3. Click on the "+" symbol on the left of the [GeoWave AP11S USB

Devices] item An item labeled "GeoWave AP11S/AP11T USB BRIDGE"

will be displayed. Select this item and click on the "Delete" (or Remove)

button. The OS reports that it will remove the driver files from the system.

4. After the driver files have been deleted, remove the USB cable (which connects the AP to the PC) from the computer.

The access point is supplied with two configuration utilities, namely SNMP Utility and USB Config Utility. Executing the setup file on the supplied CDROM will automatically install these two utilities. Follow the steps below to install the utilities.

1. Insert the supplied CD-ROM into the CD-ROM drive on your computer.

2. From the Start button, select [Run]. Enter "

d:\AP11s\Setup.exe" (if your

CD-ROM drive is Drive D) in the provided field and click next.

Deleting the USB Driver

Installing the Access Point Utility

GW-AP11S/AP11T

3. Enter user name and company name in the next screen then click "next".

4. In the next screen, you can specify the installation path (target

folder/directory) for the utilities. To modify the path, click on the Browse button and specify a path. Click on Next to continue.

5. The next screen allows you to modify the default folder name for the utilities. Enter a new folder name, or click on Next to use the default

name.

6. Click on the Finish button. The installation of the two utilities is now

complete.

2221

The access point can be configured via USB using the supplied configuration utility. Before using USB Config Utility, verify that:

● The access point has been connected to a PC via the supplied USB cable,

● The USB driver for the access point has already been installed on the PC,

and USB Config Utility has already been installed on the PC.

From the Start button, select [Program], [GeoWave], and then [GeoWa v e AP11S]. Next, double-click the USB Config Utility icon to start the utility. When the following dialog appears, enter "public" in the password field. If you have already configured a separate password, enter the new password instead.

Chapter 4

Setting Up the Access Point via Usb Config Utility

GW-AP11S/AP11T

Note: After you have modified any of the parameters in each tab, be sure to click on the Apply button before moving to another tab or exiting the window (see below).

■ System

This tab will appear right after you have logged in to the system. The tab displays system information of the access point.

Firmware Version:

Displays the version of the firmware that is currently installed on the access point.

Regulation Domain:

Displays both the wireless communication standard currently supported by the AP and its coverage area

MAC Address:

Indicates the unique MAC address that has been assigned to this particular access point 00-90-CC.

■ wireless Setting

This tab allows you to modify the function parameters of the access point.

● Access Point Name

Enter the desired name for this access point namely GW-AP11T (or GW-AP11S).

● Wireless ESSID

Be sure to enter an ESSID if you wish to use the product as an access point. An ESSID is used to connect a wireless client to a specific AP.

● Operational Rate Set

You can select from among 4 speed settings, namely Auto, 11Mbps,

5.5Mbps, 2Mbps and 1Mbps.

● Wireless Channel

The parameter indicates the channel used by the access point. Any of the fourteen channels (Ch. 1 - Ch. 14) may be selected. When using two or more access points in the same area, make sure that each channel is eparated by at least four channels. (Ex. you may use Channel 1, 6 and 11, but may NOT use consecutive channels such as Channels 1, 2 and 3)

● Operational Mode

The access point supports the following four operational modes:

Access Point Mode:

Select this mode to use the access point in the standard IEEE802.11b station mode.

4-1 Access Point Mode

GW-AP11S/AP11T

Access Point Client Mode:

This mode is used to incorporate a PC with no wireless support into a wireless LAN. The RJ-45 port on the AP is directly connected to the Ethernet port on a PC.

4-2 Access Point Client Mode

WBridge Point to Point Mode:

This mode enables AP-to-AP communication via a hub directly attached to each AP.

4-3 WBridge Point to Point Mode

GW-AP11S/AP11T

WBridge Point to MultiPoint Mode:

This mode is used to enable AP-to-AP communication when 1)the AP

's are

too far away from each other or 2)the AP'

s are separated by materials that

block wireless communication. An AP configured to Multi-Point mode is placed between two AP'

s to relay radio waves.

4-4 WBridge Point to MultiPoint Mode

● Preferred BSSID

Enter the MAC address of the access point to which AP'

s set to Single Point

mode connect (see below).

4-5 Preferred BSSID

Advanced Button:

Click on this button to configure advanced options of wireless communication. In each field,be sure to assign a value that is most appropriate for the network environment in which the access point is used.

Fragmentation Threshold:

All packets are segmented so that their sizes fall below the value specified as Fragmentation Threshold. Just like Ethernet, one-to-one communication is performed in wireless LAN. Lowering the fragmentation threshold will increase the chance that all clients on the wireless network can communicate. At the same time, however, it will reduce throughput due to increased overhead. Increasing fragmentation threshold will improve throughput. Nonetheless, this change will increase the amount of time that a client occupies a communication, reducing the chance that other client can perform data communication.

GW-AP11S/AP11T

RTS Threshold:

Any attempt to transmit a packet whose size exceeds the RTS threshold will cause the AP to enable the RTS/CTS function. RTS/CTS is helpful when there are

"hidden" terminals on the wireless network. Hidden terminals

here refer to terminals whose existence cannot be confirmed on the same wireless network.

Just like Ethernet, one-to-one communication is performed in wireless LAN. Clients which can only communicate with their nearest access points (clients which cannot directly communicate with each other) can not recognize whether or not their access points are currently communicating with other clients. This situation may lead to a loop in which a client continuously sends packets to its access point while the AP is communicating with another client (thus incapable of receiving the packets). In this case, packets transmitted to the AP are entirely lost. The RTS/CTS feature can solve this problem. When RTS/CTS is enabled, the first client sends an "RTS", or a request to the AP asking for its permission to send packets. Upon receipt of RTS, the access point transmits a CTS which contains conditions on packet transmission. Since other clients can also receive the CTS, clients beyond the communication range of the first client can now recognize the first client. Furthermore, clients that receive CTS (and conditions on packet transmission therein) acquire the ability to communicate with an AP WHILE the AP IS NOT communicating with other clients, improving the overall throughput.

Beacon Period:

This parameter specifies the time interval of beacon signals that are sent from an access point. Clients connect to AP

's which transmit beacon

signals in good condition. The shorter the beacon period, the shorter the time required by clients to recognize an AP. A short beacon period also allows the system to perform Roaming more quickly, but the parameter affects data transmission time as well.

Preamble:

The parameter configures the preamble portion of packets. A preamble is a signal used to synchronize the transmission timing between packets. Yo u may select between Long and Short.

■ IP Config

Use this tab to configure the IP parameters of the access point.

IP Address:

Use this option to assign an IP address to the access point. You must use a unique IP address which is not used by any other node on the same network. Namely is 192.168.0.1

Subnet mask:

Specify the subnet mask of the access point. Namely is 255.255.255.0

Gateway:

Enter the IP address of the default route.

DHCP Client:

Enable this parameter to let the access point obtain an IP address directly from a DHCP server. Disable it if you wish to enter a fixed IP address.

GW-AP11S/AP11T

Primary Port:

Namely is Ethernet.

■ Encryption

This tab allows the user to both enable (or disable) WEP and configure the key strings used in WEP.

● WEP Type

Enables or disables WEP.

Disable:

Disables WEP.

40-bit WEP:

Enables 40(64) bit WEP.

128-bit WEP:

Enables 128bit WEP. Active Key ID This option allows the user to specify the key used in WEP. Select from among Key 1 through Key 4.

● Authentication Type

Specify the authentication type of WEP key. You may select

"Open

System"," Shared Key" or "Both".

● 64bit

Specify Key 1 through Key 4 in a hexadecimal number (0-9, a-f)

● 128bit

Specify Key 1 through Key 4 in a hexadecimal number (0-9, a-f).

3433

GW-AP11S/AP11T

G W- A P 11 S / A P 11T can be configured via the SNMP protocol using the supplied utility. The SNMP utility allows the user to access the GWAP11S/AP11T through a wired and wireless LAN.

From the Start button, select [Program], [GeoWave] and then [GeoWa v e AP11S]. Next, double-click the SNMP Utility icon to start the utility.

● After you have configured a parameter in a tab (screen), be sure to click

on the APPLY button before moving to another screen. This step is required to enable the new setting on the access point.

Chapter 5

Setting Up the Access Point via SMNP Utility

GW-AP11S/AP11T

The main window consists of 1)four icons for detecting and configuring access point(s) and 2)one window that lists all the access points that have been detected on the utility.

■ Search Icon

Click on this icon to display all the GW-AP11S/AP11T that can be reached from the utility.

■ Setup Icon

From the list of access points, select (click on) the access point you wish to configure and then click on the Setup icon. When the password input screen appears, enter " p u b l i c "(the default password) or your own password to proceed to the setup screen.

■ Community Icon

Use this icon to display a list of access points with a specific community name. After clicking on the icon, you will be prompted to enter a community name.

Enter the desired name of community name in the Read Community String field, and click OK. The utility will list all the access points to which the community name has been assigned.

Main Window

GW-AP11S/AP11T

■ Assign Icon

Use this icon to detect an access point with a specific IP address. The utility automatically logs into the detected access point. After clicking on the icon, enter the desired IP address and your password to perform the search.

● IP Address

Enter the IP address of the access point you wish to find.

● User auth password

Enter the user password that has been assigned to the access point. The

configuration parameters of the target access point can NOT be modified

if you log into the AP with a user password.

● Admin auth password

Enter the administrator's password that has been assigned to the access point. You can modify any of the configuration options of the target access point as long as you have logged into the AP with an admin

password.

Click on the OK button after you have entered all the necessary data. The configuration screen of the target AP will appear if the utility has found an AP that corresponds to the IP address.

The configuration window consists of six tabs, namely System, IP Config, Statistic, Wireless Operation, Encryption and About.

■ System Tab

● System Reset

Resets the access point.

● Load Default

Restores the factory default configuration.

● Description

Displays the firmware version of the access point.

● MAC Address

Displays the MAC address of the access point.

Configuration Window

GW-AP11S/AP11T

● Regulation

Indicates the wireless communication standard of the access point and its coverage area.

■ Trap Enable Tab (shown in the middle section)

● Trap Enabled

Check this option to enable SNMP trap function of the access point

■ User Auth. Tab (shown in the middle section)

Allows the user to configure user password. When logged into the system with a user password, none of the configuration options can be altered.

● User Password

Enter user password.

● Confirm User Password

Enter the same user password again.

■ Admin Auth. Tab (shown in the middle section)

This option allows the user to configure the administrator password. When logged into the system with the admin password, the user may modify any of the configuration parameters of the access point.

● Admin Password

Enter the administrator password.

● Confirm Admin Password

Enter the same administrator password again.

GW-AP11S/AP11T

■ IP Config Tab

This tab allows the user to configure the IP parameters of the access point.

● MAC address

Displays the MAC address of the access point.

● IP address

Use this option to assign an IP address to the access point. You must use a unique IP address which is not used by any other node on the same network.

● Subnet mask

Specify the subnet mask of the access point.

● Gateway

Enter the IP address of the default route.

● DHCP Enabled

Enable this parameter to let the access point obtain an IP address directly from a DHCP server. Disable it if you wish to enter a fixed IP address.

■ Statistic Tab

Statistics of the Ethernet (wired LAN) side and the wireless side of the access point are displayed.

●Ethernet Tab

GW-AP11S/AP11T

●Wireless Tab

■ wireless Operation

Click on this tab to configure wireless parameters.

● Channel ID

The parameter indicates the channel used by the access point. Any of the fourteen channels (Ch. 1 - Ch. 14) may be selected. When using two or more access points in the same area, make sure that each channel is separated by at least four channels. (Ex. you may use Channel 1, 6 and 11, but may NOT use consecutive channels such as Channels 1, 2 and 3)

● Wireless ESSID

Be sure to enter an ESSID if you wish to use the product as an access point. An ESSID is used to connect a wireless client to a specific AP.

● Access Point Name

Enter the desired name for this access point.

●Transmit Rates

You can select from among 5 speed settings, namely Auto, 11 M b p s ,

5.5Mbps, 2Mbps and 1Mbps.

GW-AP11S/AP11T

● Operation Mode

The access point supports the following four operation modes:

AP (Access Point) Mode:

Select this mode to use the access point in the standard IEEE802.11b station mode.

5-1 AP Mode

Client AP Mode:

This mode is used to incorporate a PC with no wireless support into a wireless LAN. The RJ-45 port on the AP is directly connected to the Ethernet port on a PC.

5-2 Client AP Mode

WB Point to Point Mode:

This mode enables AP-to-AP communication via a hub directly attached to each AP.

5-3 WB Point to Point Mode

GW-AP11S/AP11T

WB Point to Multipoint Mode:

This mode is used to enable AP-to-AP communication when 1)the AP's are too far away from each other or 2)the AP's are separated by materials that block wireless communication. An AP configured to WB Point to Multipoint mode is placed between two AP's to relay radio waves.

5-4 WB Point to Multipoint Mode

BSSID (see under "peration Mode"):

Enter the MAC address of the access point to which AP's operating in the Single Point mode connect (see below).

5-5 BSS ID

■ Advance Button

Click on this button to configure advanced options of wireless communication and MAC address filtering. In each field, be sure to assign a value that is most appropriate for the network environment in which the access point is used.

GW-AP11S/AP11T

● RTS

Any attempt to transmit a packet whose size exceeds the RTS threshold will cause the AP to enable the RTS/CTS function. RTS/CTS is helpful when there are "hidden" terminals on the wireless network. Hidden terminals here refer to terminals whose existence cannot be confirmed on the same wireless network.

Just like Ethernet, one-to-one communication is performed in wireless LAN. Clients which can only communicate with their nearest access points (clients which cannot directly communicate with each other) can not recognize whether or not their access points are currently communicating with other clients. This situation may lead to a loop in which a client continuously sends packets to its access point while the AP is communicating with another client (thus incapable of receiving the packets). In this case, packets transmitted to the AP are entirely lost. The RTS/CTS feature can solve this problem. When RTS/CTS is enabled, the first client sends an "TS", or a request to the AP asking for its permission to send packets. Upon receipt of RTS, the access point transmits a CTS which contains conditions on packet transmission. Since other clients can also receive the CTS, clients beyond the communication range of the first client can now recognize the first client. Furthermore, clients that receive CTS (and conditions on packet transmission therein) acquire the ability to communicate with an AP WHILE the AP IS NOT communicating with other clients, improving the overall throughput.

● Fragmentation

All packets are segmented so that their sizes fall below the value specified as Fragmentation. Just like Ethernet, one-to-one communication is performed in wireless LAN. Lowering the fragmentation threshold will increase the chance that all clients on the wireless network can communicate. At the same time, however, it will reduce throughput due to increased overhead.

Increasing fragmentation threshold will improve throughput. Nonetheless, this change will increase the amount of time that a client occupies a communication, reducing the chance that other client can perform data communication.

● Preamble Type

The parameter configures the preamble portion of packets. A preamble is a signal used to synchronize the transmission timing between packets. You may select between Long and Short.

● Authorized MAC Address

When MAC addresses are specified in the table and the address table is enabled, only the wireless clients with these MAC addresses are allowed to access the AP. (Clients whose MAC addresses are not listed in the table can no longer communicate with the AP.)

To add MAC addresses to the table, use a text editor (ex. Wi n d o w s Notepad) and create a file that contains the list of the addresses you wish to add (see below)

GW-AP11S/AP11T

Example: To add the following addresses, copy them and "paste" in a text file, etc. 0090CC112233 0090CC445566 0090CCAABBCC

● Load File Button

Click on this button to load the file you created in the step above. When the file is successfully loaded, the table will display the list of MAC addresses you wish to add to the utility.

GW-AP11S/AP11T

● Download Button

Click on this button to download the MAC addresses in the table to the GWAP11S/AP11T. When the MAC addresses are successfully downloaded, the utility reports the download status accordingly.

● Get Button

Click on this button to allow the GW- A P 11 S / A P 11T to get the MAC addresses that have been downloaded.

Check the "Enable Auth. Table" option, and click OK.

■ Encryption Tab

This tab allows the user to both enable (or disable) the WEP feature of the access point. Key strings used in WEP can be also configured through this tab.

● Active Key

This option allows the user to specify the key used in WEP. Select from among Key 1 through Key 4.

● WEP Type

Enables or disables WEP.

Disable:

Disables WEP.

Enable 40:

Enables 40(64) bit WEP.

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GW-AP11S/AP11T

Enable 128:

Enables 128bit WEP.

● Authentication Type

Specify the authentication type of WEP key. You may select from among "Open System", "Shared Key" and "Both". The default value is "Both" (supports both Open System and Shared Key). .

● 64bit

Specify Key 1 through Key 4 in a hexadecimal number (0-9, a-f)

● 128bit

Specify Key 1 through Key 4 in a hexadecimal number (0-9, a-f).

Since no cabling is required to set up a wireless LAN, almost anyone can establish and start using a wireless LAN with ease. However, data communication between two nodes may fail or slow down significantly if they are separated by the following materials (see below). To ensure stable data communication, it is recommended to remove these objects or environmental factors from the installation site.

Appendix A

Environmental Requirements

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GW-AP11S/AP11T

Standards Conformance : Wireless : Complies with IEEE802.11/802.11b

Wired: IEEE802.3 10BASE-T Ethernet

Data Transfer Speed: Wireless: 11/5.5/2/1Mbps (Auto-Sensing)

Wired: 10Mbps

Supported Media : 10BASE-T Category 3/4/5 twisted-pair cables

(100m max.) Frequency Range: 2.4 - 2.497GHz Communication Range: 100m (indoor use, line-of-sight distance)

The figure may be smaller in some environments Antenna Type: Diversity Antenna Interfaces: RJ-45 MDX 10BASE-T, USB Type B LED Indicators : Wireless: Power, LAN, Wireless Power Consumption: 2.5W Dimensions: 133.3mm x 90.6mm x 36.9mm Weight: 160g Operating Temperatures: 0-40 degrees Celsius Operating Humidities: 35-85% (non-condensing) EMI: CE, FCC Class B, VCCI Class B, and others

Appendix B

Specifications

GW-AP11S/AP11T

Planex GW-AP11S, GW-AP11T User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual