AMX NXA-WAP250G User manual

Operation/Reference Guide
Control System Accessories
NXA-WAP250G
802.11 b/g Wireless Access Point
for Modero Touch Panels
Initial Release: 10/20/2006

AMX Limited Warranty and Disclaimer
AMX warrants its products to be free of defects in material and workmanship under normal use for three (3) years from
the date of purchase from AMX, with the following exceptions:
• Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch
overlay components that are warranted for a period of one (1) year.
• Disk drive mechanisms, pan/tilt heads, power supplies, and MX Series products are warranted for a period of one
(1) year.
• AMX Lighting products are guaranteed to switch on and off any load that is properly connected to our lighting
products, as long as the AMX Lighting products are under warranty. AMX does guarantee the control of dimmable
loads that are properly connected to our lighting products. The dimming performance or quality cannot be
guaranteed due to the random combinations of dimmers, lamps and ballasts or transformers.
• Unless otherwise specified, OEM and custom products are warranted for a period of one (1) year.
• AMX Software is warranted for a period of ninety (90) days.
• Batteries and incandescent lamps are not covered under the warranty.
This warranty extends only to products purchased directly from AMX or an Authorized AMX Dealer.
All products returned to AMX require a Return Material Authorization (RMA) number. The RMA number is obtained
from the AMX RMA Department. The RMA number must be clearly marked on the outside of each box. The RMA is
valid for a 30-day period. After the 30-day period the RMA will be cancelled. Any shipments received not consistent
with the RMA, or after the RMA is cancelled, will be refused. AMX is not responsible for products returned without a
valid RMA number.
AMX is not liable for any damages caused by its products or for the failure of its products to perform. This includes any
lost profits, lost savings, incidental damages, or consequential damages. AMX is not liable for any claim made by a
third party or by an AMX Dealer for a third party.
This limitation of liability applies whether damages are sought, or a claim is made, under this warranty or as a tort claim
(including negligence and strict product liability), a contract claim, or any other claim. This limitation of liability cannot
be waived or amended by any person. This limitation of liability will be effective even if AMX or an authorized
representative of AMX has been advised of the possibility of any such damages. This limitation of liability, however, will
not apply to claims for personal injury.
Some states do not allow a limitation of how long an implied warranty last. Some states do not allow the limitation or
exclusion of incidental or consequential damages for consumer products. In such states, the limitation or exclusion of
the Limited Warranty may not apply. This Limited Warranty gives the owner specific legal rights. The owner may also
have other rights that vary from state to state. The owner is advised to consult applicable state laws for full
determination of rights.
EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, AMX MAKES NO OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. AMX EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED
WARRANTY. ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF
THIS LIMITED WARRANTY.

Table of Contents
i
NXA-WAP250G 802.11b/g Wireless Access Point
Table of Contents
Compliances .......................................................................................................1
Federal Communication Commission Interference Statement .................................. 1
IMPORTANT NOTE: FCC Radiation Exposure Statement ......................................... 1
EC Conformance Declaration.................................................................................... 2
NXA-WAP250G ..................................................................................................3
Overview .................................................................................................................. 3
Specifications ................................................................................................................. 3
Power Connector ............................................................................................................ 4
Ethernet Port .................................................................................................................. 4
Reset Button ................................................................................................................... 4
Installation ..........................................................................................................5
Overview .................................................................................................................. 5
Access Point Configuration....................................................................................... 6
Twisted-Pair Cable Assignments............................................................................... 6
Straight-Through Wiring ........................................................................................... 6
Hardware Description............................................................................................... 7
Reset Button Overview ................................................................................................... 7
LED Indicators ................................................................................................................. 7
Diagnosing Access Point Indicators................................................................................. 8
Initial Configuration ............................................................................................9
Selecting an Operation Mode................................................................................... 9
Access Point Mode.......................................................................................................... 9
Access Point Mode - Roaming....................................................................................... 10
Access Point Mode - Repeater and Bridge Mode ......................................................... 11
Logging into the Web Interface.............................................................................. 12
Using the Setup Wizard .......................................................................................... 13
System Configuration .......................................................................................19
Information ............................................................................................................. 21
System........................................................................................................................... 21
Client............................................................................................................................. 22
Network ........................................................................................................................ 23
Event Log ...................................................................................................................... 23
System Settings ...................................................................................................... 24
Administration............................................................................................................... 24
Operation Mode ........................................................................................................... 24
VAP Management ......................................................................................................... 25

ii NXA-WAP250G 802.11b/g Wireless Access Point
Table of Contents
Reboot System .............................................................................................................. 25
Wireless VAP Settings............................................................................................. 26
Basic .............................................................................................................................. 26
Channel Setting............................................................................................................. 27
WEP Security ................................................................................................................. 27
WPA-PSK Security ......................................................................................................... 28
Network Settings.................................................................................................... 29
DHCP Client .................................................................................................................. 29
DHCP Server/NAT ......................................................................................................... 30
PPPoE............................................................................................................................ 31
Time and Log .......................................................................................................... 32
Updating Firmware ................................................................................................. 33
Upgrade via the Web Page ........................................................................................... 33
Upgrade via a Remote Server ....................................................................................... 33
Appendix A: Troubleshooting ..........................................................................35
Glossary ............................................................................................................37

Compliances
1
NXA-WAP250G 802.11b/g Wireless Access Point
Compliances
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits 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 in accordance with 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 can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one of the following measures:
 Reorient or relocate the receiving antenna
 Increase the separation between the equipment and receiver
 Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
 Consult the dealer or an experienced radio/TV technician for help
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
IMPORTANT NOTE: 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 a minimum distance of 20 centimeters (8 inches)
between the radiator and your body. This transmitter must not be co-located or operating in conjunction
with any other antenna or transmitter.
The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter.
IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1
through 11.

Compliances
2NXA-WAP250G 802.11b/g Wireless Access Point
EC Conformance Declaration
Marking by the above symbol indicates compliance with the Essential Requirements of the R&TTE
Directive of the European Union (1999/5/EC). This equipment meets the following conformance
standards:
 EN 60950-1 (IEC 60950-1) - Product Safety
 EN 300 328 - Technical requirements for 2.4 GHz radio equipment
 EN 301 489-1, EN 301 489-17 - EMC requirements for radio equipment
This device is intended for use in the following European Community countries:
Requirements for indoor vs. outdoor operation, license requirements and allowed channels of operation
apply in some countries as described below:
 In Italy the end-user must apply for a license from the national spectrum authority to operate
this device outdoors.
 In Belgium outdoor operation is only permitted using the 2.46 - 2.4835 GHz band: Channel
13.
 In France outdoor operation is only permitted using the 2.4 - 2.454 GHz band: Channels 1 - 7.
• Austria • Belgium • Denmark
• Finland • France • Germany
• Italy • Luxembourg • Netherlands
• Norway • Spain • Sweden
• Switzerland • United Kingdom • Portugal
• Greece • Ireland • Iceland

NXA-WAP250G
3
NXA-WAP250G 802.11b/g Wireless Access Point
NXA-WAP250G
Overview
AMX's new NXA-WAP250G 802.11b/g Wireless Access Point (FG2255-50) provides both high
performance and increased security to support all of AMX's G4 Modero wireless touch panels. The
NXA-WAP250G (FIG. 1) provides convenient WLAN access for office/home computers with
connection speeds of up to 54Mbps. This Wi-Fi certified WAP incorporates wireless encryption
standards such as enterprise-grade WPA2, WPA, 802.1x, MAC address filtering and 64-bit/128-bit WEP
encryption.
Specifications
FIG. 1 NXA-WAP250G Wireless Access Point
NXA-WAP250G (FG2255-50) Specifications
Maximum Channels • FCC/IC: 1-11
• ETSI: 1-13
• MKK: 1-13
Maximum Clients 32 per VAP interface
Data Rate • 802.11g: 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps per channel
• 802.11b: 1, 2, 5.5, 11 Mbps per channel
Modulation Type • 802.11g: CCK, BPSK, QPSK, OFDM
• 802.11b: CCK, BPSK, QPSK
Network Configuration Infrastructure
Operating Frequency • 2.4 ~ 2.4835 GHz (US, Canada, ETSI)
• 2.4 ~ 2.483 GHz (Japan)
Wireless Output Power • 802.11b: 18 dBm (typical)
• 802.11g: 17 dBm @ 6 Mbps, 14dBm @ 54 Mbps
Wireless Receive Sensitivity • 802.11b: -90 dBm @ 1 Mbps, -84 dBm @ 11 Mbps
• 802.11g: -86 dBm @ 6 Mbps, -68 dBm @ 54 Mbps
AC Power Adapter • Input: 100-240 VAC, 50-60 Hz
• Output: 5 VDC, 2 A
Unit Power Supply • DC Input: 5 VDC, 2 A maximum
• Power Consumption: 6.5 W maximum
LED Indicators • POWER (Power),
• LAN (Ethernet Link/Activity),
• WLAN (Wireless Link/Activity)
WLAN LED
LAN LED
OWER LED
Refer to the “LED Indicators”
section for details

NXA-WAP250G
4NXA-WAP250G 802.11b/g Wireless Access Point
Power Connector
The access point does not have a power switch. It is powered on when connected to the AC power
adapter, and the power adapter is connected to a power source. The power adapter automatically adjusts
to any voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.
Ethernet Port
The access point has one 10BASE-T/100BASE-TX RJ-45 port that can be attached directly to 10BASE-
T/100BASE-TX LAN segments. These segments must conform to the IEEE 802.3-2005 specifications.
This port supports automatic MDI/MDI-X operation, so you can use straight-through cables for all
network connections to PCs, switches, or hubs.
Reset Button
The Reset button is used to restart the access point or restore the factory default configuration. If you
hold down the button for less than 5 seconds, the access point will perform a hardware reset. If you hold
down the button for 5 seconds or more, any configuration changes you may have made are removed, and
the factory default configuration is restored to the access point.
NXA-WAP250G Specifications (Cont.)
Network Management Web-browser
Temperature • Operating: 0 to 50 °C (32 to 122 °F)
• Storage: -20 to 70 °C (32 to 158 °F)
Humidity 15% to 95% (non-condensing)
Compliances • FCC Part 15B Class B
• EN 55022 Class B
• EN 55024
• EN61000-3-2
• EN61000-3-3
Standards • IEEE 802.3-2005 10BASE-T, 100BASE-TX
• IEEE 802.11b, g
• Wi-Fi 11b/g, WPA, WPA2, WMM
Radio Signal Certification • FCC Part 15C 15.247, 15.207 (2.4 GHz)
• EN 300-328
• EN 301 489-1
• EN 301 489-17
• ARIB STD-T66
• IC RSS-210
Safety • EN 60950-1
• IEC 60950-1 (CB)
Included Accessories: • AC power adapter set (includes 4 plug snaps)
• Category 5 (CAT5) network cable
• NXA-WAP250G Installation Guide
• WallMount/Surface mounting installation kit (including two screws)

Installation
5
NXA-WAP250G 802.11b/g Wireless Access Point
Installation
Overview
To install the Access Point, follow these steps:
1. Select a Site – Choose a proper place for the access point. For optimum performance, consider
these points:
 Mount the access point as high as possible above any obstructions in the coverage area. Avoid
mounting next to or near building support columns or other obstructions.
 Mount away from any signal absorbing or reflecting structures (such as those containing
metal).
 Avoid radio interference by mounting away from other 802.11b or g wireless devices.
2. Mount the Access Point – The access point is designed to be mounted on any horizontal surface,
such as a desktop, or on a wall. The access point can be mounted on a wall by marking the position
of the mounting screws (included) on the wall so they line up with the two mounting slots on the
bottom of the access point. Set the screws into the wall, leaving about 3 mm (0.12 in.) clearance
from the wall. Then slide the access point down onto the screws.
3. Connect the Power Cord – Connect the power adapter to the access point, and plug the power
adapter into an AC power outlet.
4. Observe the Indicator LEDs – When you power on the access point verify that the POWER LED
turns on and that the other LED indicators start functioning as described under ”LED Indicators”.
5. Connect the Ethernet Cable – The access point can be connected to any 10 or 100 Mbps Ethernet
network device, such as a hub or a switch. Connect your network to the RJ-45 port on the back
panel using category 3, 4, or 5 UTP Ethernet cable. When the access point and the connected device
are powered on, the LAN LED should turn on indicating a valid network connection. If the LAN
LED fails to turn on, refer to “Troubleshooting”.
Use ONLY the power adapter supplied with the access point. Otherwise, the product
may be damaged.
The RJ-45 port on the access point supports automatic MDI/MDI-X operation, so you
can use straight-through cables for all network connections to PCs, switches, or
hubs.

Installation
6NXA-WAP250G 802.11b/g Wireless Access Point
Access Point Configuration
The access point can be configured by connecting a PC to its Ethernet port and accessing the web
interface.
The default IP address of the access point is 192.168.1.240, with login user name “Admin” and default
password “1988”.
Twisted-Pair Cable Assignments
For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires. Each wire pair is
identified by two different colors. For example, one wire might be green and the other, green with white
stripes. Also, an RJ-45 connector must be attached to both ends of the cable.
The following figure illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the
connectors in the same orientation when attaching the wires to the pins.
Straight-Through Wiring
If the twisted-pair cable is to join two ports and only one of the ports has an internal crossover (MDI-X),
the two pairs of wires must be straight-through. FIG. 3 diagrams the RJ-45 pinouts and signals for the
Ethernet RJ-45 connector and cable.
Each wire pair must be attached to the RJ-45 connectors in a specific orientation.
(See “Crossover Wiring” and “Crossover Wiring” for an explanation.)
DO NOT plug a phone jack connector into the RJ-45 port. Use only twisted-pair
cables with RJ-45 connectors that conform with FCC standards.
FIG. 2 RJ-45 connector pinouts
FIG. 3 Straight-Through Wiring

Installation
7
NXA-WAP250G 802.11b/g Wireless Access Point
Hardware Description
FIG. 7 shows the layout of the WAP250G connectors and components.
Reset Button Overview
The Reset Button (shown in FIG. 7) is used to either restart the WAP250G or restore the unit to its
factory default settings.
 If you hold down the button for less than 5 seconds, the WAP will perform a hardware reset.
 Is you hold down the button for more than 5 seconds, any current configuration changes and
settings (such as IP Address, MAC Address, security, etc.) are deleted and all of the unit’s
parameters are rest the factory defaulted settings.
LED Indicators
The access point includes three status LED indicators, as described in the following figure and table.
FIG. 4 NXA-WAP250G Component Locations
LED Status Description
POWER On Green Indicates that the system is working normally.
WLAN On/Flashing Green Indicates the 802.11g radio is enabled and transmitting or receiving data
through wireless links. The flashing rate is proportional to network activity.
Off Indicates the 802.11g radio is disabled.
LAN On/Flashing Green Indicates a valid link on the Ethernet port and that the access point is transmit-
ting or receiving data. The flashing rate is proportional to network activity.
Off The Ethernet port has no valid link.
Power Socket
Ethernet LAN Port
(CAT5) Antenna
Top View Bottom View
WallMount Slots
Reset Button

Installation
8NXA-WAP250G 802.11b/g Wireless Access Point
Diagnosing Access Point Indicators
Symptom Action
POWER LED is Off • AC power adapter may be disconnected. Check connections between the access
point, the power adapter, and the wall outlet.
LAN LED is Off • Verify that the access point and attached device are powered on.
• Be sure the cable is plugged into both the access point and corresponding device.
• Verify that the proper cable type is used and its length does not exceed specified
limits.
• Check the cable connections for possible defects. Replace the defective cable if
necessary.

Initial Configuration
9
NXA-WAP250G 802.11b/g Wireless Access Point
Initial Configuration
The NXA-WAP250G offers a user-friendly web-based management interface for the configuration of all
the unit’s features. Any PC directly attached to the unit can access the management interface using a web
browser, such as Internet Explorer (version 6.0 or above).
The initial configuration steps can be made through the web browser interface using the Setup Wizard. It
is recommended to make the initial changes by connecting a PC directly to the NXA-WAP250G before
installing it in its intended location. The NXA-WAP250G has a default IP address of 192.168.1.240 and
a subnet mask of 255.255.255.0. If your PC has an IP address on the same subnet (that is, the PC and
NXA-WAP250G addresses both start 192.168.1.x), you can connect immediately to the web interface.
Otherwise, you must first change your PC’s IP address to be on the same subnet as the NXA-WAP250G.
The NXA-WAP250G can operate in one of two modes:
 Access Point – Providing connectivity to wireless clients in the service area.
 Repeater and Bridge – Providing an extended link to a remote access point from the wired
LAN. Access Point working in this mode could connect to another AP in Access Point mode
or Repeater and Bridge mode. Whenever there are two APs having wireless link together (one
in Access Point or Repeater and Bridge mode, another using Repeater and Bridge mode), and
also have wired link separately, these two APs are also working as “bridging” for the two
wired links.
In addition, the NXA-WAP250G offers full network management capabilities through an easy to
configure web interface.
Selecting an Operation Mode
Access Point Mode
The NXA-WAP250G provides access to a wired LAN for wireless stations (FIG. 1). The wireless
network is defined by a name, called the Service Set Identifier (SSID). All wireless stations must have
the same SSID, radio channel, and security settings as the NXA-WAP250G to be able to communicate.
FIG. 1 Access Point Mode - wired LAN for wireless stations
NetLinx Central Controller
NXA-ENET24 Switch
NXA-WAP250G
MVP Wireless
Touch Panel
A/V Rack
Video display
monitor

Initial Configuration
10 NXA-WAP250G 802.11b/g Wireless Access Point
Access Point Mode - Roaming
A wireless network can also support roaming for mobile users (FIG. 2). Multiple NXA-WAP250Gs can
be placed so that a continuous coverage area is created. Wireless users within this area can move freely
and remain connected to the network. All NXA-WAP250Gs and wireless stations in the network must be
configured with the same SSID. Neighboring NXA-WAP250Gs should be set to non-interfering radio
channels (that is, channels 1, 6, or 11 for 802.11b/g).
FIG. 2 Access Point Mode - roaming for mobile users
NetLinx Central Controller
NXA-ENET24 Switch
NXA-WAP250G
A/V Rack
Video display
monitor
NXA-ENET24 Switch
NXA-WAP250G
MVP Wireless
Touch Panel
<BSS1>
<BSS2>
<ESS>

Initial Configuration
11
NXA-WAP250G 802.11b/g Wireless Access Point
Access Point Mode - Repeater and Bridge Mode
The NXA-WAP250G can also operate in a “repeater and bridge” mode to extend the range of links to
wireless clients (FIG. 3). The NXA-WAP250G uses Wireless Distribution System (WDS) to forward
traffic between the repeater and the root access point. WDS is defined in the IEEE 802.11 standard for
wireless connections between NXA-WAP250Gs.
In repeater and bridge mode, the NXA-WAP250G supports an Ethernet link to a wired LAN. Note that
when the NXA-WAP250G operates in this mode only half the normal throughput is possible. This is
because the NXA-WAP250G has to receive and then re-transmit all data on the same channel. Once an
AP is configured as repeater, it could connect to another AP working in Access Point mode or Repeater
and Bridge mode. In a deployed topology that has a repeater and bridge AP involved, there should be one
AP working in Access Point mode.
FIG. 3 Access Point Mode - Repeater and Bridge Mode
Network
Core
NetLinx Central
A/V Rack
Video display
monitor
NXA-ENET24
MVP Wireless
Touch Panel
NXA-WAP250G
NXA-WAP250G
Controller
NetLinx Central
Controller
A/V Rack
Switch
NXA-ENET24
Switch
Video display
monitor
802.11g Radio
Repeater Link
802.11g Radio
Bridge Link
Repeater and
Bridge Mode
NXA-WAP250G
Repeater and
Bridge Mode
802.11g Radio AP Link

Initial Configuration
12 NXA-WAP250G 802.11b/g Wireless Access Point
Logging into the Web Interface
In the web browser’s address bar, type the default IP address: http://192.168.1.240. The web browser
displays the NXA-WAP250G’s login page.
The User ID is fixed as “Admin” and the default password is “1988” (FIG. 4).
The home page displays the Main Menu (FIG. 5). There are two options available, you can configure the
basic features of the NXA-WAP250G using the Setup Wizard’s simple steps, or you can configure all
features in detail using the Advanced Setup menu.
FIG. 4 Login Page
It is strongly recommended that you configure a password. If a password is not
configured, the management interface is not protected and anyone that can connect
to the NXA-WAP250G may be able to compromise your network security. For
information on configuring a password, see “Administration” on page 2-7.
FIG. 5 Home Page

Initial Configuration
13
NXA-WAP250G 802.11b/g Wireless Access Point
Using the Setup Wizard
There are only a few basic steps you need to set up the NXA-WAP250G and provide a connection for
your AMX Control Panel and network access for other wireless devices.
The Setup Wizard takes you through configuration procedures for the general network settings, such as
IP configuration, wireless network name (Service Set Identifier), and wireless security. Follow these
steps:
1. Launch the Setup Wizard – Click “Start with Setup Wizard” on the home page.
2. Operation Mode Setting – Select an operation mode according to how the unit will be used in your
network.
There are two operation modes (FIG. 7):
 AP — Set the device as an Access Point. The device can also act as a root bridge in a wireless
bridge network.
 Repeater & Bridge — Set the device as a Wireless Repeater. The Root AP MAC Address can
be assigned manually or selected after clicking “Scan”. Reboot the NXA-WAP250G after
completing the settings.
FIG. 6 Setup Wizard - Network Setting (AP)
FIG. 7 Setup Wizard - Network Setting (Repeater & Bridge)

Initial Configuration
14 NXA-WAP250G 802.11b/g Wireless Access Point
3. Network Setting – Sets the NXA-WAP250G’s IP address assignment method and configures the
local Dynamic Host Configuration Protocol (DHCP) server and Network Address Translation
(NAT) settings (FIG. 8).
There are three basic methods for configuring the NXA-WAP250G’s IP address:
 Dynamic IP — The IP address is assigned automatically from a home gateway router or other
device that has a DHCP server feature.
 PPPoE — The IP address is assigned automatically from an Internet service provider (ISP)
through an ADSL modem using Point-to-Point Protocol over Ethernet (PPPoE). If your ISP
has provided you with a user name and password, enter these in the corresponding text boxes
under PPPoE Setting.
 Static IP — The IP address is assigned manually by the user. This may be required if your
NXA-WAP250G is connected to a home gateway router or other device that does not support
a DHCP server.
If you select Static IP, enter an appropriate IP address and subnet mask that are compatible
with your existing network. If a management station exists on another network segment, then
you must enter the IP address for a Default Gateway that can route traffic between these
segments. Also enter the IP address for the Domain Name Server (DNS) to be used for host-
name to IP address resolution (FIG. 9).
DHCP Server/NAT Setting — The NXA-WAP250G includes a DHCP server that can assign
IP addresses to any wireless device. Addresses are assigned from a common address pool
configured on the NXA-WAP250G. You can configure the address pool by specifying start and
end IP addresses.
NAT is a standard method of mapping multiple “internal” IP addresses to one “external” IP
address on devices at the edge of a network. For the NXA-WAP250G, the internal (local) IP
addresses are the IP addresses assigned to wireless clients by the DHCP server, and the
external IP address is the IP address assigned to the NXA-WAP250G itself. Note that the
NXA-WAP250G IP address is always in a different subnet from the DHCP server pool. The
NXA-WAP250G uses the NAT IP settings to route traffic from the wireless interface to the
Ethernet network.
4. Wireless VAP #1 Setting – VAP (Virtual Access Point) #1sets the wireless Service Set Identifier
(SSID) and wireless security encryption key for the VAP#1 network.
FIG. 8 Setup Wizard - Network Setting

Initial Configuration
15
NXA-WAP250G 802.11b/g Wireless Access Point
VAP1 provides higher priority for wireless communications associated with this SSID, relative
to the second SSID (VAP2).
Enter the SSID, or wireless network name, which all wireless stations must use to associate
with the NXA-WAP250G. The SSID is case sensitive and can consist of up to 32 alphanumeric
characters (Default: Wireless Network - 1).
The NXA-WAP250G offers two wireless security options; Wired Equivalent Privacy (WEP) or
Wi-Fi Protected Access Pre-shared Key (WPA-PSK). Select the security you want to use and
enter the appropriate encryption key, or select “None” for no security.
 WEP Key — Enter 10 hexadecimal digits (0 to 9 and A to F) or 5 alphanumeric characters for
64 bit keys, 26 hexadecimal digits or 13 alphanumeric characters for 128 bit keys, and 32
hexadecimal digits or 16 alphanumeric characters for 152 bit keys.
 WPA-PSK Key — Enter as an easy-to-remember form of letters and numbers. The key must
be from 8 to 63 characters, which can include spaces.
FIG. 9 Setup Wizard - DHCP Server and NAT Settings
It is recommended to restrict one VAP network for only AMX Control Panels and let
all other wireless devices use the other VAP network or the second SSID (FIG. 10).
FIG. 10 Setup Wizard - Setting the VAP#1 SSID and Security
Step 3: Wireless VAP #1 Setting

Initial Configuration
16 NXA-WAP250G 802.11b/g Wireless Access Point
5. Wireless VAP #2 Setting – Sets the wireless Service Set Identifier (SSID) and wireless security
encryption key for the VAP#2 wireless network (FIG. 11).
Enter the SSID, or wireless network name, which all wireless stations must use to associate
with the NXA-WAP250G. The SSID is case sensitive and can consist of up to 32 alphanumeric
characters (Default: Wireless Network - 2).
The NXA-WAP250G offers two wireless security options; Wired Equivalent Privacy (WEP) or
Wi-Fi Protected Access Pre-shared Key (WPA-PSK). Select the security you want to use and
enter the appropriate encryption key, or select “None” for no security.
 WEP Key — Enter 10 hexadecimal digits (0 to 9 and A to F) or 5 alphanumeric characters for
64 bit keys, 26 hexadecimal digits or 13 alphanumeric characters for 128 bit keys, and 32
hexadecimal digits or 16 alphanumeric characters for 152 bit keys.
 WPA-PSK Key — Enter as an easy-to-remember form of letters and numbers. The key must
be from 8 to 63 characters, which can include spaces.
All wireless devices must be configured with the same WEP or WPA-PSK Key values
to communicate with the NXA-WAP250G.
FIG. 11 Setup Wizard - Setting the VAP#2 SSID and Security
Step 4: Wireless VAP #2 Setting
Wireless VAP #2 Setting is only available when the Operation Mode is set to AP.
Both SSIDs (VAP#1 and VAP#2) must use the same encryption method.
All wireless devices must be configured with the same WEP or WPA-PSK Key values
to communicate with the NXA-WAP250G.