Bosch Security Systems AP200MW High Power Wireless 802.11b Access Point User Manual 2480AA Manual Rev A
Bosch Security Systems, Inc. High Power Wireless 802.11b Access Point 2480AA Manual Rev A
Manual revised
Model 2480AA
High Power (200mW) Wireless 802.11b
Access Point with Antenna Diversity
Instruction Manual
Telex Communications, Inc.
8601 East Cornhusker Hwy, Lincoln, NE 68505
Revision A, April 2004
2
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. against malfunction due to defects in materials and
workmanship for a specified period, as noted in the individual product-line statements below, beginning with the date of original purchase by the end-
user. If such malfunction occurs during the specified period, the product will be repaired with new or remanufactured equivalent parts and products or
replaced (at our option) without charge. The product will be returned to the customer prepaid.
Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific items described in the
individual product-line statements below, (c) malfunction resulting from use or operation of the product other than as specified in the product data sheet
or owner’s manual; (d) malfunction resulting from misuse or abuse of the product, including accidents; (e) defects resulting from excess moisture,
lightning or power surges; or (f) malfunction occurring at any time after repairs have been made to the product by anyone other than a Telex Service
Department or any of its authorized service representatives. The Warranty is void if the label bearing the product serial number (if applicable) has
been removed or defaced.
Other Express or Implied Warranties Excluded: TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE WARRANTIES SET FORTH HEREIN
ARE IN LIEU OF, AND EXCLUSIVE OF, ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. SPECIFICALLY EXCLUDED, WITHOUT
LIMITATION, ARE THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR USE OR FOR A PARTICULAR PURPOSE, AND WARRANTIES
ARISING FROM COURSE OF DEALING OR USAGE OF TRADE OR ANY OTHER MATTER. IF, UNDER APPLICABLE LAW, IMPLIED
WARRANTIES MAY NOT BE VALIDLY EXCLUDED, THE DURATION OF SUCH IMPLIED WARRANTIES IS LIMITED TO THE WARRANTY
PERIOD.
Limitation of Remedies; Certain Damages Excluded: REPAIR OR REPLACEMENT OF DEFECTIVE PRODUCTS ARE THE SOLE AND
EXCLUSIVE REMEDIES PROVIDED BY TELEX TO THE CUSTOMER OR TO ANY OTHER PERSON AND SHALL CONSTITUTE FULL
SATISFACTION OF ALL CLAIMS, WHETHER BASED ON CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE. TELEX’s MAXIMUM
LIABILITY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE PRODUCT BY THE CUSTOMER. TELEX AND ITS
SUBSIDIARIES SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING,
WITHOUT LIMITATION, INJURY TO PERSONS OR PROPERTY OR LOSS OF USE. SOME STATES AND COUNTRIES DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF CERTAIN DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. IN SUCH
STATES AND COUNTRIES, TELEX SHALL BE LIABLE FOR NO MORE THAN THE DIRECT DAMAGES FOR BODILY INJURY AND/OR REAL OR
PERSONAL PROPERTY ARISING FROM THE NEGLIGENCE OF TELEX.
Other Rights: This warranty gives you specific legal rights, and you may also have other rights, depending upon where you live.
Obtaining Warranty Service: To obtain warranty service, a customer must deliver the product, prepaid, to the appropriate Telex Service Department
listed below or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or invoice.
Applicable Law. The validity, performance and construction of this Limited Warranty shall be governed by the laws of the State of Minnesota without
reference to its choice of law principles. The Minnesota federal courts and/or the state courts located in Hennepin County, Minnesota, shall have
exclusive personal and subject matter jurisdiction over, and the parties shall each submit to the jurisdiction of such courts and to venue in Minnesota
with respect to any dispute concerning the product or pursuant to this Limited Warranty, and all objections to such jurisdiction or to such venue are
hereby waived.
For additional warranty repair or service information, contact the appropriate Telex service department listed below:
USA, Canada & Latin America
(DUPLICATION) (WIRELESS, VEGA, WALS, LANDMOBILE)
Telex Communications, Inc. 8601 E Cornhusker Way
West First Street Lincoln, NE 68507
Blue Earth, MN 56013 USA Tel: 402-467-5321
Tel: 507/526-3205 Fax: 402-467-3279
Fax: 507/526-3059
(EDUCATION AND AVIATION HEADSETS)
1720 E 14th
Street
Glencoe, MN 55336
Tel: 320-864-3177
Fax: 320-864-3225
Germany, Rest of Europe and Africa & Middle East Mexico
(Duplication) (CB MICS)
Telex EVI Audio GmbH. Saguaro Elect
Hirschberger Ring 45 Hermosillo, Mexico 83280
D 94315, Straubing, Germany Tel: 011 5262 607012
Phone: +49 9421-706 0 Fax: 011 5262 607010
Fax: +49 9421-706 265
3
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. 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
is found 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 or devices
• Connect the equipment to an outlet other than the receiver’s
• Consult a dealer or an experienced radio/TV technician for assistance
Changes or modifications not expressly approved by the manufacturer could
void the user’s authority to operate the equipment!
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 20 cm (8 inches) between the radiator and your body.
Installation Requirements
The antenna used for this transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter. This equipment must be
professionally installed. The professional installer is responsible for ensuring that
the system is used exclusively for fixed, point-to-multipoint operations. Any
operation or installation not expressly approved by the manufacturer could void
the user’s authority to operate the equipment.
4
Table of Contents
Warranty & Copyright Information 2
FCC Statement 3
Chapter 1: Introduction 6
The Telex 2480AA Access Point 6
Features 7
Package Contents 8
Chapter 2: Getting to Know the 2480AA AP 9
Inside the 2480AA AP 9
The Power-Over-Ethernet Injector 10
The 2480 AP LED’s 11
Chapter 3: Installing the 2480AA AP 12
Selecting a Mounting Location 12
Attaching to a Mast 13
Attaching to a Wall 13
Routing the CAT5 cable 13
Diversity Antennas 13
Chapter 4: Configuring the 2480AA AP 15
Change your computer network settings 16
Change the 2480AA AP settings 16
System Status 17
Configuration 18
Administration 23
Remote Access 24
Reset your computer network settings 24
Chapter 5: Managing the 2480AA AP 25
Chapter 6: Troubleshooting 26
Chapter 7: Firmware Documentation 27
Chapter 8: Specifications 28
5
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. A highly sensitive 200 mW radio and optional
diversity reception means that you can easily cover distances of up to 12 miles in LOS or
multipath environments.
Based on signal strength, it dynamically shifts between 11, 5.5, 2 and 1 Mbps network speeds for
maximum reliability of connection. So you’ve got the flexibility and performance you need
from your wireless LAN or wireless ISP.
Wireless data or VoIP is transmitted and received from the client or CPE to the 2480AA Access
Point on the 2.4 GHz ISM band. The radio signal path should be line-of-sight (LOS) between
the 2 antennas. If the radio signal path is over a large body of water, such as a lake or bay, or if
the signal passes through an urban area with several tall buildings, then multipath propagation
may be present. The 2480AA AP may be used with a single Tx/Rx antenna for normal LOS
conditions, or a secondary Rx antenna may be used when multipath is present.
6
Features
• Easy IE and Netscape Web browser configuration, no additional drivers needed
• Interoperable with 802.11b (DSSS) 2.4 GHz Equipment, Prism 2.5 based
• Up to 11 Mbps High-Speed Data Rate, Throughput up to 5 Mbps
• High-Power (+23 dBm) and High Sensitivity (-95 dBm @ 1 Mbps)
• 18VDC Power-over-Ethernet (PoE) supplied for distances up to 328 feet (100m)
• Transient Suppression for high reliability
• Broad operating temperature range, -21F to +125 F
• AP visibility and beacon period selection
• DTIM Interval (number of beacons per DTIM interval)
• Multicast PM buffering
• Maximum number of stations selection
• Access Point name and SSID selection
• Preamble Type selection (Long/Short/Both)
• Channel selection (1-11 for US operation)
• Basic, Supported and Transmission rate selection
• Selectable static IP address or DHCP client mode
• MAC address filtering
• MAC address association list
• Web server port selection
• Adjustable RTS and fragmentation settings
• 64 or 128 bit WEP with keys auto-generated from pass phrase
• Ability to deny unencrypted data when WEP is enabled
• Open or Shared key authentication when WEP is enabled
• Support for firmware upgrades
• FCC Certified with many Telex sector and omni antennas
• Supports diversity antennas for reception
• Standard mounting for flat walls or up to 2.5 inch OD masts
• Waterproof cable entry
• Type N antenna connectors
• Rugged NEMA 4X enclosure
7
Package Contents
PoE Injector 18VDC power supply Hardware pack
CD & Quick Guide 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
8
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.
You will see a small 2-position slide switch near the RJ45 socket. If you are connecting the
2480AA AP directly to a computer network card or other Ethernet device, then slide this switch
toward the RJ45 socket. If you are connecting the 2480AA AP to a hub or switch, then slide this
switch away from the RJ45 socket. Later, when you apply power to the unit, the rightmost green
LED will light, indicating an Ethernet connection has been made.
9
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.
If you are installing the 2480AA AP at this time, place the weatherproof grommet over the end
of an unterminated length of outdoor-rated CAT-5 cable so that it will seat into the hole marked
CAT-5. Install the RJ-45 plug and test to make sure that all 8 conductors make contact. Seat the
weatherproof grommet into the hole on the bottom of the 2480AA enclosure and allow about 2”
of cable to extend inside. Place the locking nut over the RJ-45 plug and screw onto the end of
the weatherproof grommet and tighten securely. The CAT-5 cable should be free to slide within
this grommet. Plug the cable into the RJ-45 jack, then tighten the grommet to prevent the cable
from moving.
The Power-over-Ethernet (PoE) injector
The Telex Wireless CPE uses a PoE injector to supply DC power to the device. To test or
configure the 2480AA AP, install another RJ45 plug to the other end of your exterior CAT-5
cable and connect this end to the PoE box in the socket marked ANTENNA. Also connect one
end of the supplied 7 foot CAT5 patch cable in the socket marked COMPUTER. The other end
of this 7 foot cable will plug into the Ethernet port of your computer or into a hub or switch port.
Plug the supplied 18 volt 1 amp supply into a standard 110VAC outlet or power strip. Plug the
other end of this DC supply into the PoE box in the socket marked DC.
Crossover
Switch
RJ45
Jack
Reset to
Factory
Default
Reboot
CAT
-
5
cable to
PoE
Power
LED
Ethernet
Connection
LED
10
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.
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. When powered-up, the first green LED on the right side will be lit ONLY if the PoE
box is connected to an active Ethernet port. If it does not light, then check that all cables are
plugged into the PoE box and the power strip is turned on (if used). If power is supplied and the
cable is plugged into an active Ethernet card, hub, switch or router and the first green LED is not
lit, then move the switch on the PCB inside the CPE to the other position. If this LED is still not
lit, then check the wiring of the RJ45 plugs on the CAT-5 cable. Also check to make sure that
the computer, hub, switch or router is turned on. This green LED will fast blink when passing
Ethernet traffic. The second green LED will light steady when power is supplied to the unit.
Connect
to
2480 AP
Connect to hub,
switch, router or
computer
Connect
DC power
cable here
11
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. Trees are especially troublesome as they
may allow the signal to pass easily in winter when leaves are off, but may block the signal in the
other seasons. Check the FAQ’s under “Pre-Installation and Site Preparation” or “Radio
Propagation” or “Troubleshooting” on the Telex Wireless web pages for helpful hints.
(http://www.telex.com/Wireless/faq.nsf/c)
Choose a location on the roof, tower, mast or wall for your 2480AA AP and antenna(s) so that it
has a clear shot to your client base. The closest client may not necessarily have the best path if it
is blocked by hills, buildings or trees.
Ensure that the signal path to each client has sufficient Fresnel zone clearance with respect to the
ground or other obstacles near the path. Check the Telex FAQ’s under “Radio Propagation” for
more information on Fresnel zone clearance.
Ensure that your mounting location is less than 100 meters from the computer, hub, switch or
router location. (Maximum length of CAT-5 cable is 100 meters) Determine the building entry
point ahead of time to prevent problems later.
Attaching to a Mast
First, attach the top U-bolt and U-bracket set to the mast with the tabs on the U-bracket pointing
down. Attach the 2480AA AP to these tabs, then install the lower set of U-bolt and U-bracket
with the tabs up. Attach the bottom U-bracket to the 2480AA AP. Position the brackets in the
desired location on the mast, then tighten all hardware.
12
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 pipe or other support using tie wraps or black electrical
tape. Secure the CAT-5 cable to the outside wall of the building or tower leg using cable clamps
or wood screws or other suitable hardware. You will need to place a CAT-5 Surge Arrestor in
series with the cable before it enters a building. Also, create a “drip loop” before the cable enters
through the wall of the building. This prevents water from following the cable into the building.
Pull any excess cable into the building, then weather-seal the hole around the CAT-5 cable with
quality exterior grade sealant. Route the cable to the PoE location inside the building.
Diversity Antennas
The Telex 2480AA AP is supplied with 2 Type N RF connectors for diversity reception.
Diversity is extremely helpful in maintaining wireless connections in the presence of multipath
propagation. Multipath is normally found near lakes, bays and other large bodies of water. It is
also found in urban environments where there are tall buildings to cause reflections.
13
The primary Tx/Rx antenna is connected to one port, and may be used by itself in a non-
diversity 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. The primary
and secondary antennas can be separated by as little as 5 feet or as much as 30 feet in either a
vertical or horizontal plane. See Chapter 8: 2480AA Specifications, for a complete list of FCC
Certified antennas for the Telex 2480AA AP.
14
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 5.5 or later, Netscape 7.0 or later), change
the 2480AA AP wireless network settings from the default values to the values of your ISP
or IS Dept.
3. If necessary, change the network settings on the AP and computer to match other devices on
a wired network connected to the computer.
If you do not know how to enable and change network setting on your PC, contact your
network service provider (ISP or IS Dept.) support desk or a qualified PC technician for
assistance.
If your network service provider has not already provided you with specific network settings to
use, contact them now and ask for the following:
1. The IP Address assigned to your AP:
2. The corresponding Subnet Mask:
3. The corresponding Default Gateway:
4. The SSID, AP name, transmission rate and radio channel:
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. Select the DHCP option from the 2480AA AP IP Address Mode on the IP
Network screen to allow the AP to obtain an IP address automatically.
The AP name is used with the Telex Locator software for use in upgrading firmware.
15
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: 255.255.255.0
Default Gateway: 192.168.1.1
e. Click OK to accept the settings.
f. The NIC must be set to 10 Mbps and “Proxy Server” must be unchecked under LAN settings.
You may add the IP address of this AP into the exceptions instead of disabling the proxy.
Restart your computer if prompted.
Step 2: Change the 2480AA AP settings
Open your web browser. (Internet Explorer 5.5 and 6.0 or Netscape 7.0 have been tested to work
properly. Other browsers may work but have not been verified.)
Open the following URL: 192.168.1.90 (select “try again” if the computer detects that you are
offline.)
The following window should appear:
The first time that you use this, just press OK. The User Name and Password will be set later.
16
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. To refresh the list to include
all associated clients, you may reboot the AP without changing any settings.
17
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. Select the DHCP option from the 2480AA AP IP Address Mode on the IP
Network screen to allow the AP to obtain an IP address automatically.
Make any changes you require, then click Save.
18
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. These rates are
only used for management frames, broadcast and multicast frames, not for data frames. The
default setting enables all four rates.
The Supported Rates define the rates at which a wireless client will communicate with an AP.
When a station attempts to join the network, it checks the data rate used on the network.
The Transmission Rate is used to control the current transmit rate of a data packet. This setting
basically provides a means to set a fixed or auto rate value when the AP and a station are enabled
to communicate at the current rate (defined by the supported rates). Starting from the highest
rate of the association, the fallback algorithm is triggered by the transmit failure of a frame (i.e.
all retries have been sent without acknowledgement). The fallback rate will last for an internally
fixed time or until a number of successful transmissions controls the upgrade back to the highest
rate.
Make any changes you require, then click Save.
19
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.
Telex recommends using the default value of Fragmentation Threshold and RTS Threshold
for the 2480AA AP. Only minor modifications of these 2 values are recommended.
The Beacon Period determines the interval of time between successive beacons. The beacon is
a packet broadcast by the AP to keep the network synchronized.
The DTIM Interval determines the number of beacons between each Delivery Traffic Indication
Message (DTIM). This informs clients of the next window for listening to broadcast and
multicast messages. When the AP has buffered broadcast or multicast messages for associated
clients, it sends the next DTIM with a DTIM Interval value. Clients for that AP hear the beacons
and awaken to receive the broadcast and multicast messages.
Enabling Multicast PM buffering can avoid network congestion when there are too many
clients to transmit data simultaneously.
Make any changes you require, then click Save.
20
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. If Invisible is selected, all clients will have
to manually enter the correct SSID in their configuration. When WEP is enabled, you should
also enable Deny Unencrypted Data and select either Open or Shared or Both Shared Key
Authentication. Make any changes you require, then click Save.
21
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.
22
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. The Web Server Port may also be changed if required.
User Name: ______________________
Password: ________________________
In the Reboot & Reset page shown below, you may use the Reboot button to immediately
reboot the AP. The Reset Configuration button will reset all configuration options to their
factory default values.
23
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. Right-click on the Network icon (My Network Places) on your computer’s desktop and
select Properties from the pop-up menu.
b. Right-click on “Local Area Connection” and select Properties from the pop-up menu.
c. Select the installed TCP/IP protocol, then click the Properties button.
d. If using static IP addresses: Enter an IP Address for your computer that is different than
the AP’s IP address. Usually, you can use an IP number that is one higher than the AP IP
address. For example, if the AP’s IP address is 192.168.1.90 then assign 192.168.1.91 to
the computer. If you have many computers and AP’s in your network, then make sure
that each uses a different IP address within the same subnet.
e. If using static IP addresses: Change your computer’s Subnet Mask and Default
Gateway settings to match the values you received from your ISP or IS Dept.
f. If you selected “Obtain an IP address automatically” in your computer, then you will
usually not be able to change the AP configuration settings until you reset the computer
to a static IP. Set the DNS Server information if necessary.
g. Click on OK in each window to accept the changes.
h. Restart your computer if prompted.
24
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. You must know the User Name and Password for this AP in order to log
in and change the settings.
Once logged-in to the AP from a wired or wireless backbone, you may change anything except
the AP’s subnet. If the backhaul link is lost, then you may only communicate with the AP after
resetting the IP address.
After you have changed the AP’s configuration, press Save then Reboot.
25
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. - Replace Cat-5 cable & check wiring
Cables plugged into wrong jacks of PoE box - use correct jacks
Defective power supply - Replace power supply
Defective PCB in AP - Replace AP unit
Defective PoE - Replace PoE box
Problem:
Both Green lights are on and system tray shows connection to the NIC, but cannot load AP log-
in page
Possible Causes / Solutions:
Proxy Server box checked on LAN settings – uncheck this box
Auto-negotiate function turned on in NIC – manually set to 10 Mbps
Problem:
Second Green light (Power) is on but not first green light (Ethernet).
Possible Causes / Solutions:
Straight/Cross-over switch in wrong position - move switch to other position
Computer Network IP not set correctly - change Network IP to 192.168.1.100
Computer, hub, switch or router not turned on - turn on equipment
Computer Cat-5 cable not plugged-in - plug cable in
Cat-5 cable not wired correctly - Replace Cat-5 cable & check wiring
Problem:
CPE MAC addresses initially show in Association list, but disappear later
Possible Causes / Solutions:
No problem. The MAC addresses will drop from the Association list when the CPE enters the
sleep mode (no activity).
Check the AP FAQ’s on the Telex Wireless web pages for helpful hints and troubleshooting
guides. (http://www.telex.com/Wireless/faq.nsf/c)
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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.
1.0.2-1.1.1-1.3.8 Release Notes:
Default settings:
IP: 192.168.1.90
Access Point Name: 802.11b AP
SSID: 802.11b AP
Channel: 1
Basic Rates: all
Supported Rates: all
Transmission Rate: Automatic
Preamble: Long
Max Number of Stations: 200
Fragmentation Threshold: 2346
RTS Threshold: 2347
Beacon Period: 100 ms
DTIM Interval: 1
Multicast PM buffering: on
No WEP, no user name, no password
Visibility: Invisible
Disallow firmware upgrades
MAC filtering: off
Web Server Port: 80
27
Chapter 8: 2480AA Specifications
General:
Model Number 2480AA
Standard IEEE 802.11b, 802.3
Regulatory Certifications FCC Part 15
Mode Point-to-Multipoint under Part 15.247
Channels 11 Channels (US, Canada)
Frequency Band 2.400 – 2.483 GHz
Radio Type Direct Sequence Spread Spectrum (DSSS)
Modulation CCK (11, 5.5 Mbps), DQPSK (2 Mbps), DBPSK (1 Mbps)
Radio Raw Data Rate 11, 5.5, 2 and 1 Mbps, Auto Fall-Back
Maximum Outdoor Range approximately 12 miles (19 km)
Wireless Security 64/128 bit WEP, MAC filtering
Antenna Connectors 2 each Type N jacks (diversity receive)
Electrical Specifications:
Operating Voltage from 9 to 24 VDC, 18VDC supplied
Operating Current 200 mA standby, 650 mA max (UDP), 500 mA max (TCP)
Radio conducted output power 23 dBm (200 mW)
Max Antenna gain 14.5 dBi (with 15’ LMR-400)
Max EIRP 36 dBm (4 watts)
Radio Sensitivity -89 dBm @ 11 Mbps, -91 dBm @ 5.5 Mbps
-93 dBm @ 2 Mbps, -95 dBm @ 1 Mbps
Environmental:
Temperature Range -40F to 140 F (storage), -21F to 125 F (operating)
Humidity 5% to 95% typical
Physical:
AP Dimensions 8” x 6” x 4”
AP Weight 4 lbs. (1.8 kg)
Wind Surface Area 0.33 sq. ft. (0.03 sq. m)
FCC Certified Antennas:
Telex Antenna Model:
2437 2439 2442 2444 2443 2445
Antenna Type: Omni Omni Sector Sector Sector Sector
Beamwidth: (degrees) 360 360 60 90 120 90
Gain: (dBi) 7.5 9.5 14 14.5 12 12
Cable Length: (ft)
(LMR-400) 3 3 15 15 3 3
EIRP (dBm) 30 33 36 36 35 35
Polarization Vertical
Vertical
Vertical
Vertical
Vertical
Horizontal