OTC Wireless ACR-201-G Bedienungsanleitung

ACR-201-G

802.11g Wireless Ethernet Bridge Station

Technical Manual

www.otcwireless.com

ACR-201-G

Wireless Ethernet Bridge Station

Technical Manual

Information in this document is subject to change without notice. Complying with

all applicable copyright laws is the responsibility of the user. No part of this

document may be reproduced or transmitted in any form or by any means,

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of the manufacturer. If, however, your only means of access is electronic,

permission to print one copy is hereby granted.

The manufacturer provides this documentation without warranty, term, or

condition of any kind. The seller may make improvements or changes in the

product(s) and/or the program(s) described in this documentation at any time.

Other product and company names herein may be trademarks of their respective

owners.

Rev 1.01

ACR-201-G Technical Manual ii

Table of Contents

ACR-201-G Technical Manual

Chapter 1 Introduction .......................................................................................1

ACR-201-G Radio .......................................................................................................... 2

Specifications..................................................................................................................2

Chapter 2 Installation .........................................................................................3

Safety Statements............................................................................................................ 3

Installing the Hardware................................................................................................... 3

Power ........................................................................................................................... 3

Ethernet Connection ...................................................................................................... 3

Status LED’s................................................................................................................. 3

System Requirements for Web-based Utility program................................................... 5

Chapter 3 Web-Based Utility Software..............................................................6

Use the Web-Based Utility Program............................................................................... 6

Overview of the Web Pages............................................................................................ 6

Admin ............................................................................................................................. 7

Info.................................................................................................................................. 9

Template ....................................................................................................................... 11

Wireless......................................................................................................................... 12

Security ......................................................................................................................... 14

Advanced ...................................................................................................................... 16

Chapter 4 Troubleshooting ..............................................................................18

No Page Displayed When Accessing the Web-based Utility ....................................... 18

No Radio Link............................................................................................................... 18

No Network Connection While the Radio Link is Good.............................................. 19

Poor Link Quality ......................................................................................................... 19

Radio Interference......................................................................................................... 20

Settings Appear not to be Modified.............................................................................. 20

Technical Support ......................................................................................................... 20

Appendix A: Limited Warranty.........................................................................21

Appendix B: Regulatory Compliance.............................................................22

ACR-201-G Technical Manual iii

Chapter 1 Introduction

ACR-201-G is an IEEE 802.11g compliant wireless Ethernet Bridge Station, with

a 100/10 -BaseT interface.

What separates the ACR-201-G from many other 802.11g-compliant radios is

that its 100/10-BaseT interface affords a true plug-and-play feature. This is

unavailable from other 802.11g Station radios that are based on either a

PCMCIA or a USB interface. They require the installation of a driver on the host

device. The ACR-201-G driver-free feature also means that the operation of the

radio is OS (operating system) independent.

The driver-free feature enables wireless connectivity for any computing

devices/systems with any OS (operating system), as long as the device has an

Ethernet communication port available. Ethernet-equipped workstations in a

corporate environment, for example, benefit greatly from this driver-less feature

because the IT workforce has one less driver to worry when upgrading an OS or

when salvaging an OS crash. Special computing/networking devices, such as

printer servers, POS (point of sales) machines may not even have an easy way

of installing a driver for a radio. In addition to supporting the connection of a

single computer or device to an 802.11g Access Point in a pure 802.11g Station

role, ACR-201-G also supports the IP-Bridging Mode, where multiple computers

can share the wireless access to an 802.11g AP through a single ACR-201-G

Station radio.

A built-in Web-based Utility program is provided for the users to configure ACR-

201-G. This Utility program can also be used to monitor the communication

condition when the radio is in operation. Once configured, the radio runs self-

sufficiently without the aid of any driver program in the device connected to the

radio. This Web-based Utility program therefore is intended to be, in most cases,

just a tool for the network operators. An end user simply plugs the pre-configured

radio into any device equipped with a RJ-45 receptacle without ever being

exposed to this Utility program. The details are described in chapter 3.

ACR-201-G supports the WPA (Wi-Fi Protected Access) -TKIP (Temporal Key

Integrity Protocol) and WPA-PSK (Pre-shared Key) security protocol in addition

to the standard 64 and 128-bit WEP encryption to provide the highest degree of

security to your wireless network.

ACR-201-G has a compact form-factor that blends easily into a home/office

environment. It also lends particularly well to portable applications. The

specifications are given on the next page.

ACR-201-G Technical Manual 1

ACR-201-G Radio

Specifications

Model ACR-201-G

Standard IEEE 802.11, 802.11g, WPA-TKIP, WPA-PSK

Host Interface Ethernet, 802.3, RJ-45 receptacle

Frequency 2.4 – 2.4835 GHz (US and Europe)

2.4 – 2.497 GHz (Japan)

RF Channels 11 channels (US, Canada, Brazil, Australia, New Zealand)

13 channels (Europe, except France)

4 channels (France, Mexico)

Transmission power 14 dBm at antenna input typical for 802.11g

16.2 dBm at antenna input typical for 802.11b

Receiver sensitivity -65dBm @ 54Mbps, -80dBm @11Mbps at 1e-5 BER typical

Antenna Dipole antenna with ~2dBi gain

Data Rate 1/ 2/ 5.5/ 6/ 9/ 11/ 12/ 18/ 24/ 36/ 48/ 54 Mbps

Modulation OFDM with BPSK, QPSK, 16QAM, 64QAM (11g)

DBPSK, DQPSK, CCK (11b)

Link Distance ~1200 ft in open space

Network Types Support both the ad hoc mode and the infrastructure mode

Data Encryption Support WPA-TKIP, WPA-PSK and 128/64-bit WEP

DC Supply USB power cable (or an optional DC adapter with 5V DC)

Current consumption <650mA (max. reached in transmit-mode)

LED Indicators 4: Power, Transmission, Receiving, Link/Ethernet-connection

Operating Temperature -10°C – +60°C

Regulatory Compliance Safety

UL 1950,3rd edition

CSA-C22.2 No. 950-95, 3rd edition

IEC60950, 2nd edition, 1991+A1, 1992+A2, 1993+A3,1995+A4,1996

EN 60950,2000

Health

ETSI EN 50371, 2002

EMC/Wireless

FCC Part 15, Class B

FCC 15.247

RSS-210

ETSI EN 300 328-2, V 1.2.1

ETSI EN 301 489-17, V 1.1.1 (9-2000)

Key Features

 Plug & Play —

o No driver on the host device is required for radio operation

o Radio operation is independent of the operating system on computer or any connecting device

(Windows 98/2000/ME/XP, MAC, Linux, Unix, embedded, etc.), as long as the device has a

properly supported Ethernet port.

 Industry standard IEEE 802.11g-compliant wireless interface; Interoperable with AP and Client

radios from other vendors

 WPA (Wi-Fi Protected Access) – TKIP (Temporal Key Integrity Protocol) and WPA – PSK (Pre-

shared Key) security in addition to the 64 and 128-bit WEP encryption for highest degree of security

 The IP Bridging Mode, when enabled, allows the sharing of the Station Radio by multiple computers

 Ethernet (802.3 compliant) host interface to enable true Plug & Play

 Maximum 54 Mbps data rate and automatic selection of lower data rates in degraded RF

environment

 Integrated omni-directional-antenna to provide best tradeoff between link-quality and mobility

 Remote network management achievable through Web browser-based configuration tool run from

any OS platforms

 Remote firmware/software up

rade can be achievable from an

OS platforms

ACR-201-G Technical Manual 2

Chapter 2 Installation

Safety Statements

Use only the power adapter provided with this product or the manufacturer's

authorized replacement power supply. Refer service or rep airs, other than

those described in the user documentation, to a professional service person.

Installing the Hardware

Power

Power is supplied to the radio via

the included USB power cord

which is plugged into a compliant

USB-host port. An optional DC

adapter can be purchased from

OTC Wireless, Inc.

Ethernet Connection

The ACR-201-G is to be connected

to any device’s Ethernet port via

the included UTP cables. Use the

white straight-through cat 5 cable

to connect the ACR-201-G to a

computer or a router’s Ethernet

port. If the IP Bridging feature is

enabled (see Chapter 3 for details),

to allow multiple devices to use the

ACR-201-G for access via a hub or

a switch, then use the blue

crossover UTP cable to connect the ACR-201-G to the switch or hub..

ACR-201-G

5V USB Power

Cord

Cat5 Cable

Status LED’s

Connect the100/10-BaseT port (which resembles an over-sized telephone jack)

on the ACR-201-G to the 100/10-BaseT port of the computer (or network device,

such as a hub or switch). Power on the ACR-201-G, the LED’s on the front panel

should exhibit the following patterns:

LED Color Light Pattern

ON Red Steady ON

RX Green Steady ON

TX Red Blinking ON, when transmitting 802.11 signal

LINK Yellow Blinking ON, when communicating over the Ethernet port

Steady Off, when Ethernet connection is not present.

ACR-201-G Technical Manual 3

If the yellow LED stays off, then the Ethernet connection to the Ethernet port is

not made. Check your UTP cable and make sure that a straight-through cable is

used for connecting it to a host computer and that a crossover cable is used for

connecting it to a hub or switch. If one cannot communicate and the yellow LED

is on, you may want to re-position the ACR-201-G to a different location for better

RF reception. You may also want to check if the unit is configured with the

proper RF channel and security settings by using the Web-based Utility software.

Refer to Chapter 3 for instructions on how to change the RF channel and security

settings.

For laptop users, once the ACR-201-G radio unit works properly, the unit can be

secured at the top of the laptop LCD display by the provided radio clip as shown

in the following figure.

Ethernet

Connection

Power drawn from the USB

Example of Typical Installation for ACR-201-G

ACR-201-G Technical Manual 4

System Requirements for Web-based Utility program

A Web-based Configuration Utility is built-in to the ACR-201-G for changing the

configuration settings. For using the ACR-201-G Web-based Configuration Utility,

your computer must meet the following requirements:

(1) A Web browser must be installed on the computer. The supported Web

browsers include Internet Explorer 5.0 and above, Netscape 6.0 and above,

Mozilla 1.0 and above. JavaScript for the browser must be enabled.

(2) Ethernet capable computer with RJ-45 port (either built-in or add-on NIC).

No installation of any program is needed. See Chapter 3 for detailed information

of configuring the Wireless bridge station. In order to configure the adapter, you

need to know the factory default settings.

The factory default settings are:

IP address: 169.254.98.200

Subnet mask: 255.255.0.0

(Optional) Gateway: 169.254.1.1

User name: admin

Password: public

ACR-201-G Technical Manual 5

Chapter 3 Web-Based Utility Software

Use the Web-Based Utility Program

Once the ACR-201-G is properly powered up and connected to a computer

running a Web browser on the same IP subnet, the Web-based Utility is ready for

use. To access the web utility, open a Web browser and enter http:// followed by

the current IP address of the ACR-201-G in the location field, for instance http://

169.254.98.200

For configuring your computer to match the IP subnet of your PC to that of the

ACR-201-G radio, different steps must be taken on different operating systems.

Typically, a static IP address must be manually assigned to a computer and the

user must have administrative privilege to perform such operation. Here are

sample configuration steps involved on Windows and Macintosh.

On Windows, select “Start->Settings->Control Panel” and double click “Network

and Dial-up Connections” icon. In the popped up window, right-click “Local Area

Connection” icon and select the “Properties” command. In the “Local Area

Connection Properties” dialog, choose “Internet Protocol (TCP/IP)” component in

the “Components checked are used by this connection” section and then click the

“Properties” button. In the subsequently popped up “Internet Protocol (TCP/IP)

Properties” dialog, turn on “Use the following IP address” radio button, and enter

the IP address, subnet mask as well other information in the related fields for

your computer.

On Macintosh, select “Apple->System Preferences…” and double click the

“Network“ icon. In the popped up “Network” dialog, choose “Built-in Ethernet”

option for “Shows” dropdown menu and select the “TCP/IP” tab. Choose

“Manually” for the “Configure” dropdown menu, and then enter your IP address,

subnet mask as well as other information in the related fields for your computer.

Overview of the Web Pages

With most browsers, there are six web pages accessible through six tab links.

These web pages are hosted by a built-in web server in the ACR-201-G radio.

Details of each Web page will be discussed in the following sections. The web

pages may look different; however, functions are the same depending on the

combination of operating systems and the web browser being used.

To access any hosted page, you are prompted for a user name and a password.

When accessing a hosted page for the first time, use the factory default settings

listed on the previous page.

The “Save” and “Cancel” buttons are common on “Admin”, “Wireless”, “Security”,

and “Advanced” pages. Clicking the “Save” will apply the settings according to

the displayed value in that particular web page. You will be prompted to restart

the ACR-201-G unit. Please note that you may have to manually click “Refresh”

or “Reload” button of the web browser in order to see the updated web page due

to the caching mechanism of the web browser. Alternatively, the user can change

ACR-201-G Technical Manual 6

the setting of the internet browser such that the browser would retrieve new web

pages instead of displaying the cached web pages.

Admin

The “Admin” page (Figure 1) is the default home page for the built-in web server.

On this page, users are able to change settings, which are used for

administration purposes. The web page is divided into four sections: Device

Name, IP settings, Security, Commands and Upgrade Firmware.

1. Device Name:

Device Name

This is the name that the bridge will use to identify itself to external

configuration and IP-address-finding programs. This is not the same as

the SSID. It is okay to leave this blank if you are not using these

programs.

2. IP Settings:

IP Address Mode

Select 'DHCP' to get the IP settings from a DHCP server on your network.

Select 'Static' to use the IP settings specified on this page.

IP address

The IP address of this ACR-201-G wireless bridge station. This allows the

user to set a static IP address to the Wireless bridge station. This IP

address is only used for accessing the built-in Web server. In order to

access the Web server, the computer must use an IP address on the

same subnet of the wireless bridge station. It is not necessary to change

this IP address to an address used by the Wireless Network, but it is okay

to do so, if desired. However, if you do so, please consult with your

system or network administrator to obtain an IP address.

WARNING: Any changes to the IP settings should be contemplated

carefully, documented well, and made only after consulting your

system or network administrator. Failure to do so may result in

being unable to access the built-in Web server and/or may affect

network operation.

Subnet mask

The subnet mask specifies the network number portion of an IP address.

The factory default is 255.255.0.0. This allows the user to set the subnet

mask. If you change the IP address to one that is usable in your network,

you may need to change this setting also. Please ask your system or

network administrator for the correct subnet mask.

Gateway

This is the IP address of the gateway that connects you to the Internet.

Allows the user to set the default gateway. If you change the IP address to

one that is usable in your network, you may need to change this setting

ACR-201-G Technical Manual 7

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