Model 2480AA High Power (200mW) Wireless 802.11b Access Point with Antenna Diversity Instruction Manual Telex Communications, Inc.
COPYRIGHT & TRADEMARKS Copyright @ 2004 Telex Communications, Inc., All Rights Reserved. Microsoft, Windows, and the Windows logo are registered trademarks of Microsoft Corporation. All other trademarks and brand names are the property of their respective proprietors. TELEX LIMITED WARRANTY Uniform Limited Warranty: Telex branded products are warranted by Telex Communications, Inc.
FCC STATEMENT This 802.11b Access Point has been tested and complies with the specifications for a Class B 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 according to the instructions, may cause harmful interference to radio communications.
Table of Contents Warranty & Copyright Information FCC Statement Chapter 1: Introduction 2 3 6 The Telex 2480AA Access Point Features Package Contents 6 7 8 Chapter 2: Getting to Know the 2480AA AP Inside the 2480AA AP The Power-Over-Ethernet Injector The 2480 AP LED’s 9 9 10 11 Chapter 3: Installing the 2480AA AP 12 Selecting a Mounting Location Attaching to a Mast Attaching to a Wall Routing the CAT5 cable Diversity Antennas 12 13 13 13 13 Chapter 4: Configuring the 2480AA AP 15 Change your co
Chapter 1: Introduction The Telex 2480AA Access Point Perfect for the campus, enterprise or wireless Internet service provider (WISP), the Telex 2480AA Access Point extends wireless connectivity to any 802.11b client device. The 2480AA AP simply and efficiently transmits data between 10Base-T and your 2.4 GHz 802.11b clients. The Telex 2480AA AP gives you the freedom to wirelessly connect any standard 802.11b networked client anywhere within it’s range.
Features • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Easy IE and Netscape Web browser configuration, no additional drivers needed Interoperable with 802.11b (DSSS) 2.4 GHz Equipment, Prism 2.
Package Contents PoE Injector CD & Quick Guide 18VDC power supply Hardware pack 2480AA AP Tools and Hardware Needed: The following tools will be needed to assemble and mount your 2480AA AP: 7/16” wrench Flat blade screwdriver for door latch 3/4” wrench or adjustable wrench for grommet nut UV-stable plastic cable ties or black electricians tape Wall or mast pipe on which to mount the AP Adequate length of exterior CAT-5 cable RJ45 plugs and crimping tool 7
Chapter 2: Getting to Know the 2480AA AP Inside the 2480AA AP Before you can either test or install the Telex 2480AA AP, you must attach a length of CAT-5 Ethernet cable to the unit. Open the door of the 2480AA AP using a standard flat blade screwdriver. Insert one end of a length of CAT-5 8-conductor Ethernet cable through the hole marked CAT-5 and connect to the RJ-45 jack. WARNING: Before touching the PCB, make sure that you are grounded and have dissipated any static charge to ground.
Reboot Reset to Factory Default RJ45 Jack Power LED Ethernet Connection LED Crossover Switch CAT-5 cable to PoE There are two small pushbutton switches on the PCB. The lower button is used if you wish to reset the 2480AA AP to factory default settings. You should use this button if you forgot or lost the user name and/or password to the AP. The reboot button only reboots the AP. It does not change any settings.
WARNING: Make sure that the antenna is pointed away from any humans or animals while power is applied! A safe distance is approximately 7 inches or more. The PoE injector box may be placed on the floor or mounted anywhere near the computer, hub, switch or router. Connect DC power cable here Connect to hub, switch, router or computer Connect to 2480 AP The 2480AA AP LED’s (v 1.0.2 firmware) There are 4 LED’s visible from the inside of the 2480AA AP. These can be seen when the door is opened.
Chapter 3: Installing the 2480AA AP Selecting a Mounting Location It is very important to position the 2480AA AP and it’s antenna(s) to ensure the highest possible data transfer speed in all kinds of weather and in all seasons. The 2480AA AP operates on a radio frequency of 2.4 GHz and must be line-of-sight (LOS) with it’s clients. Hills, buildings, trees and large vehicles must not block the signal path.
Attaching to a Wall If attaching the 2480AA AP to a roof or wall, use appropriate hardware through the 4 holes provided in the 2480AA AP enclosure. The U-bolts and U-brackets do not have to be used. Routing the CAT-5 cable When you have completed installing and securing the 2480AA AP to it’s mount, attach and secure the CAT-5 cable to the mounting pip e or other support using tie wraps or black electrical tape.
The primary Tx/Rx antenna is connected to one port, and may be used by itself in a nondiversity installation. The secondary Rx-only antenna is connected to the remaining port when diversity is used. Both the primary and secondary antennas should be the same type and gain, and should be pointing in the same direction. Shown below is a typical diagram for diversity antennas with vertical separation.
Chapter 4: Configuring the 2480AA AP Overview The Telex 2480AA AP is shipped with default (factory-set) values for certain network settings. You will need to change these settings at the Access Point location to match those of your ISP or IS Department. To do this requires 3 main steps: 1. Change your computer network settings to match the default network settings in the 2480AA AP so your computer can communicate with the AP configuration software. 2. Using a standard web browser (Internet Explorer 5.
Step 1: Change your computer network settings a. Enable TCP/IP networking on your PC if you have not already done so, then right-click (use the right mouse button) on the Network (My Network Places) icon on your computer’s desktop and select Properties from the pop-up menu. b. Right-click on Local Area Connections and select Properties from the pop-up menu. c. Click on the installed TCP/IP protocol, then click Properties. d. Enter the following settings: IP Address: 192.168.1.100 Subnet Mask: 255.255.255.
System Status The following Summary page should be displayed first. Make sure that the Firmware Version is current (see Chapter 7). Check the Telex website occasionally to check for updates. The IP Address shown is the same as that used to access this configuration software. The MAC address is that of the radio card in this 2480 Access Point. Select the Associations page to show associated client MAC addresses. The clients must be actively passing data packets to this AP in order to show on this list.
Configuration To enter the Access Point Name , IP Address Mode , Default IP Address, Default Subnet Mask and Default gateway, select the IP Network screen as shown below. Each AP on your network should have a unique Access Point Name . This name is used when upgrading firmware with the Telex Locator Tool. We recommend using static IP addresses for all AP’s. However, if your network uses DHCP to assign IP addresses automatically to the AP, you will not need the IP address, Subnet Mask or Default Gateway.
To enter the SSID, Channel, Basic Rates, Supported Rates, Transmission Rate, or Preamble Type information, select the Wireless Network screen as shown below. The Basic rates should be set depending on the speed of your network. You must select 1 & 2 Mbps if you have older 802.11 compliant equipment that support only 1 or 2 Mbps. Selecting 1 & 2 Mbps, however does NOT limit the basic transfer rates of faster adaptors.
To enter the Max Number of Stations , Fragmentation Threshold, RTS Threshold, Beacon Period, DTIM Interval and to enable Multicast PM buffering, select the Advanced Wireless screen. If you have several AP’s at one location, set the Max Number of Stations to a lower value to balance the load on each AP. We suggest using a value between 25 and 50 stations for most WISP installations. This can be increased if client bandwidth limiting is used.
To use standard WEP security, select the Wireless Security screen shown below and select WEP enabled. Choose from either 64 or 128 bit WEP Key Length, then enter the pass phrase. It is recommended to use a pass phrase that consists of 10 or more characters. Make sure that your clients use the same WEP pass phrase or hex keys. Select the WEP key to use for transmitting data from the AP to the clients. For increased security, select Invisible from the Visibility Status and change the keys periodically.
For additional security, enable MAC address filtering from the MAC Filters screen. You must manually enter each client’s MAC address. HINT: When first setting up an AP with many clients, you can reboot the AP to force all associated clients to show up in the Association list, then copy & paste these MAC addresses into the MAC filter fields, then enable MAC filtering. Make any changes you require, then click Save.
Administration In the Admin Settings (Security) page shown below, you may set the User Name and Password for this web interface. Make sure that you write down this information and store in a safe place so that it is not forgotten or stolen. Any time that you wish to reset the AP to factory defaults, click on the Reset Configuration button on the Reboot & Reset page. The Admin Settings page also allows you to either Allow Upgrade Uploads or Not Allow. For normal operation, leave this off.
Remote Access When all changes have been made and saved on the AP, close the browser. Subsequent changes may now be made from either the AP location or anywhere on the network as long as you are in the same subnet. Step 3: Reset Your Computer Network Settings The last step in the AP configuration is to reset your computer network settings so they match the settings used by your Network. This step may be skipped if no changes were made to the AP’s IP address during Step 2. a.
Chapter 5: Managing the 2480AA AP The initial association of a CPE with the 2480AA AP must be performed at the client location. However, once associated, both the AP and CPE settings may be monitored and changed from any computer on their same subnet. For security reasons, it is best to keep the AP on a different subnet from the clients. From any remote computer on the same subnet, open the web browser and enter the AP’s IP address as the URL.
Chapter 6: Troubleshooting Problem: After plugging in all cables and applying DC power to PoE, no lights come on. Possible Causes / Solutions: Cat-5 cable not wired to RJ45 plugs correctly.
Chapter 7: Firmware Documentation The current firmware is 1.0.2 - 1.1.1 – 1.3.8. To upgrade firmware, ensure that the AP and attached computer are on the same subnet. In the AP Administration settings, enable “Allow Upgrade Uploads” and SAVE. Run the Telex Locator software (available from our website or on the supplied CD). Select the correct AP name to upgrade, then click the Upgrade button. Choose the correct bin file, then press “Upgrade”. Upgrading will not change any settings in the AP configuration.
Chapter 8: 2480AA Specifications General: Model Number Standard Regulatory Certifications Mode Channels Frequency Band Radio Type Modulation Radio Raw Data Rate Maximum Outdoor Range Wireless Security Antenna Connectors Electrical Specifications: Operating Voltage Operating Current Radio conducted output power Max Antenna gain Max EIRP Radio Sensitivity 2480AA IEEE 802.11b, 802.3 FCC Part 15 Point-to-Multipoint under Part 15.247 11 Channels (US, Canada) 2.400 – 2.
