Hewlett-Packard AP 420 Quick Start Guide
hp procurve wireless AP 420 ww/na
Installation and Getting Started Guide
© Copyright 2003 Hewlett-Packard Company
All Rights Reserved.
This document contains information which is protected by
copyright. Reproduction, adaptation, or translation without
prior permission is prohibited, except as allowed under the
copyright laws.
Publication Number
J8130-90001
July 2003
Applicable Products
hp procurve wireless AP 420 ww/na (J8131A/J8130A)
Disclaimer
The information contained in this document is subject to
change without notice.
HEWLETT-P ACKARD COMPANY MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not
be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing,
performance, or use of this material.
Hewlett-Packard assumes no responsibility for the use or
reliability of its software on equipment that is not furnished
by Hewlett-Packard.
Warranty
See the Customer Support/Warranty booklet included with
the product.
A copy of the specific warranty terms applicable to your
Hewlett-Packard products and replacement parts can be
obtained from your HP Sales and Service Office or
authorized dealer.
Safety
Hewlett-Packard Company
8000 Foothills Boul ev ar d, m/s 5552
Roseville, Cal ifornia 95747-5552
http://www.hp.com/go/hpprocurve
Before installing and operating these products, please read
the “Installation Precautions” in chapter 2, “Installing the
Access Point 420ww/na”, and the safety statements in appendix
C, “Safety and Regulatory Statements”.
Contents
1 Introducing the hp procurve wireless AP 420 ww/na
Top of the Access Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Back of the Access Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Network Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Access Point Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 Installing the hp procurve wireless AP 420 ww/na
Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Installation Precautions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
1. Prepare the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
3. Verify the Access Point Passes the Self Test . . . . . . . . . . . . . . . . . . . 2-5
LED Behavior: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
4. Mount the Access Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Horizontal Surface Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
5. Connect the Access Point to a Power Source . . . . . . . . . . . . . . . . . . 2-9
6. Connect the Network Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Using the RJ-45 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
7. Position the Antennas on the Access Point . . . . . . . . . . . . . . . . . . . 2-10
8. (Optional) Connect a Console to the AccessPoint 420wl . . . . . . . 2-11
Terminal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Direct Console Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Sample Network Topo logies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Ad Hoc Wireless LAN (no access point) . . . . . . . . . . . . . . . . . . . . . . . 2-13
i
Infrastructure Wireless LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Infrastructure Wireless LAN for Roaming Wireless PCs . . . . . . . . . . 2-15
3 Getting Started With Access Point Configuration
Recommended Minimal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Using the Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Where to Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Using the IP Address for Remote Access Point Management . . . . . 3-7
Starting a Telnet Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Starting a Web Browser Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
4 Troubleshooting
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Proactive Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Hardware Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Testing the Access Point by Resetting It . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Checking the Access Point’s LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Checking Console Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Testing Access Point-to-Device Network Communications . . . . . . . . 4-7
Testing End-to-End Network Communications . . . . . . . . . . . . . . . . . . 4-7
Restoring the Factory Default Configuration . . . . . . . . . . . . . . . . . . . 4-8
Downloading New Access Point Software . . . . . . . . . . . . . . . . . . . . . . . 4-9
HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Before Calling Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
A Specifications
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Acoustic ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
ii
EMC Compliance (Class B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Radio Signal Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
B Access Point Port and Network Cables
Access Point Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Twisted-Pair Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Twisted-Pair Cabl e/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . B-2
Straight-Through Twisted-Pair Cable for
10 Mbps or 100 Mbps Network Connections . . . . . . . . . . . . . . . . . . . . B-3
Cable Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Crossover Twisted-Pair Cable for
10 Mbps or 100 Mbps Network Connection . . . . . . . . . . . . . . . . . . . . . B-4
Cable Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
C Safety and EMC Regulatory Statements
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Informations concernant la sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Hinweise zur Sicherheit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Considerazioni sulla sicurezza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Consideraciones sobre seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Safety Information (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6
Safety Information (China) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7
EMC Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
U.S.A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Australia/New Zealand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9
European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10
iii
iv
1
Introducin g the hp procurve
Introducing the
hp procurve wireless AP 420 ww/na
The HP Procurve Access Point 420ww/na is a wireless repeater that seamlessly
integrates with existing wired networks to support connectivity for mobile
users or wireless workstations. This solution offers fast, reliable wireless
connectivity with considerable cost savings over wired LANs. Just install
enough wireless access points to cover your network area, plug wireless cards
into your notebooks or install wireless adapters into your desktops, and start
networking.
hp procurve wireless AP 420 ww/na (J8131A/J8130A)
wireless AP 420 ww/na
1-1
Introducing the hp procurve wireless AP 420 ww/na
Throughout this manual, this ac ce ss point will be abbreviated as the
hp procurve wireless AP 420 ww/na.
The AP 420 ww/na has one 10/100Base-TX RJ-45 port. This port also
supports Power over Ethernet based on the IEEE 802.3af standard. The access
point supports wireless connectivity at speeds up to 54 Mbps based on the
IEEE 802.11g standard.
wireless AP 420 ww/na
Introducing the hp procurve
This access point is designed to be used primarily for connecting wireless
clients to an enterprise network. This access point allows wireless clients to
connect directly to each other, or to connect to other computers or ne twork
resources located on the w i red network. In addition, the Ac cess Point 420wl
offers full network managemen t capabilities.
This chapter describes your hp procurve wireless AP 420 ww/na including:
■ Top and back of the a cc ess point
■ Access point features
1-2
Introducing the hp procurve wireless AP 420 ww/na
Top of the Access Point
Introducin g the hp procurve
Top of the Access Point
Antennas
LEDs
wireless AP 420 ww/na
hp procurve wireless AP 420 ww/na
Power,
10/100-T Link,
and Wireless
Link LEDs
Access Point
LEDs
Power
(green)
Table 1-1. Access Point LEDs
State Meaning
On The access point is receiving power.
Off The access point is NOT receiv ing power.
Blinking* The access point is undergoing self test or downloading software.
The self test and initialization are in progress after you have power cycled or reset
the access point. The access point is not operational until this LED stops blinking.
Blinking*
(prolonged)
A component of the access point has failed its self test.
1-3
Introducing the hp procurve wireless AP 420 ww/na
Top of the Access Point
Access Point
LEDs
10/100-T On (green) The LAN port is enabled and receiving a link indication from 100 Mbps device.
wireless AP 420 ww/na
Introducing thehp procurve
Wireless On The wireless interface is enabled and receiving a link indication from a wireless client
* The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
State Meaning
On (amber) The LAN port is enabled and receiving a link indication from 10 Mbps device.
Off The LAN port h a s no active network ca ble connected, or is not receiving a link b eat.
Otherwise, the port may have been disabled through the access point console, or the
web browser interface.
Blinking* The LAN port is transmitting or rece iving traffic.
Off The wireless inte rfa ce is not receiving a link beat. Otherwise, the wireless interface
may have been disabled through the access point console, or the web browser
interface.
Blinking* The wireless interface is transmitting or receiving traffic.
1-4
Introducing the hp procurve wireless AP 420 ww/na
Back of the Access Point
Introducin g the hp procurve
Back of the Access Point
hp procurve wireless AP 420 ww/na
Antennas
Console Port
Lock
10/100Base-TX RJ-45
port and PoE Input
Reset buttons
Antennas
The access point includes two antenna s f or wireless communications. The
outbound signal transmitted from both antennas is identical, but only the best
inbound signal rece ived on one of the an tennas is used. The antenna s transmit
the outgoing signal as a toroidal sphere, so the antennas should be adjusted
to different angles to provide better coverage. For further information on
positioning the antennas, see “Position the Antennas on the Access Point” on
page 2-10.
DC power connector
wireless AP 420 ww/na
Lock
The access point inclu des a Kensington security slot on the rear panel, marked
“Lock”. You can prevent unauthorized removal the access point by wrapping
the Kensington security cable (not provided) around an unmoveable object,
inserting the lock into the slot, and turning the key.
1-5
Introducing the hp procurve wireless AP 420 ww/na
Back of the Access Point
Console Port
This port is used to connect a console to the access point by using the serial
cable supplied with the access point. This connection is described under
“Connect a Console to the Access Point” in ch apter 2, “Installing the
Access Point420wl”. The console can be a PC or workstation running a VT- 100
terminal emulator, or a VT-100 terminal.
wireless AP 420 ww/na
Introducing the hp procurve
Network Port
The access point includes one 10/100Base-TX port. This port uses MDI
(i.e., internal straight-through) pin configuration. You can therefore use
straight-through twisted-pai r cable to connec t this port to most network
interconnection device such as switch or router that provide MDI-X ports.
However, if you need to connect the access point to a workstation or other
device that only has MDI ports, then use crossover twisted-pair cable.
Ports on most HP switches have the “HP Auto MDIX” feature, which means
that you can use either straight-through or crossover twisted-pair cables to
connect the access point to these switches.
Refer to following section for information on supplying po wer to the access
point’s network port from a network device, such as a switch, that provides
Power over Ethernet (PoE).
Power Connector
The AP 420 ww/na does not have a power switch; it is powered on when
connected to the AC power adapter, and the power adapter is connected to
an active AC power source. Th e access point automatical ly adjusts to any
voltage between 100--240 volts and either 50 or 60 Hz. There are no voltage
range settings required.
Caution Use only the AC power adapter supplied with the access point. Use of other
adapters, including adapters that came with other HP network products, may
result in damage to the equipment.
The access point may also re ceive P ower over Ethern et (PoE ) from a switc h
or other network device that supplies power over the network cable based on
the IEEE 802.3af standard.
1-6
Introducing the hp procurve wireless AP 420 ww/na
Back of the Access Point
Note that if the access point is connected to a PoE source device and also
connected to a local power source through the AC power adapter, PoE will
be disabled.
Reset Button
This button is used to restore the factory default configuration. When the
Reset button is pressed, any configuration changes you may have made
through the access point console, the web browser interface, and SNMP
management are removed, and the factory default configuration is restored to
the access point. For the specific method to restore the factory default
configuration, see “Restoring the Factory Default Configuration” in chapter 4,
“Troubleshooting” of this manual.
Introducin g the hp procurve
wireless AP 420 ww/na
1-7
Introducing the hp procurve wireless AP 420 ww/na
Access Point Features
wireless AP 420 ww/na
Introducing the hp procurve
Access Point Features
The wireless features of the Access Point 420ww/na include:
■ supports up to 64 wireless clients.
■ 802.11g draft Compliant – interoperable with multiple vendors.
■ provides seamless roaming within 802.11g draft WLAN environment.
■ precise control over signal transmission power and data rate.
■ advanced security through 64/128-bit WEP encryption, Wi-Fi Protected
Access (WPA), 802.1x, remote authentication via RADIUS server, and
MAC address fil ter ing features to protect your sensitive data an d a uthenticate only authorized users to your network.
■ remote logging of system messages.
■ time synchronization via SNTP server for message logs.
■ supports PPP dial-in connection using standard dial-up program.
The other basic features of the Access Point 420ww/na include:
■ one 10/100Base-TX RJ-45 port.
■ supports Power over Et hernet based on the IEEE 802.3af standard.
■ automatic learning of the network addresses in the access point’s address
forwarding table.
■ full-duplex operation for the 10/100 RJ-45 port when connected to other
auto-nego tiating devi ces.
■ easy management of th e access point through sever al available interfac es:
• console interface—a full featured, easy to use, VT-100 terminal
interface that is e specially goo d for out-of-b and access point management or for Telnet access to the access point.
• web browser interface—an easy to use built-in graphical interface
that can be accessed from common web browsers.
■ support for one IEEE 802.1Q-compliant VLAN so the access point can join
the appropriate logical grouping that fits your business needs.
■ support for many advanced features to enhance network performance—
for a description , see the Management and Configuration Guide, which
is on the Documentation CD-ROM that is included with your access point.
■ download of new access point software for product enhancements or bug
fixes.
1-8
2
Installing the hp procurve wireless AP 420 ww/na
The HP Access Point 420ww/na is easy to install. It comes with an accessory kit
that includes a bracket for mounting the access point on a wall. The bracket
is designed to allow mounting the access point in a variety of locations and
orientations.
This chapter shows you how to install your Access Point 420ww/na.
Included Parts
The AP 420 ww/na has the following components shipped with it:
■ hp procurve wireless AP 420 ww/na Installation and Getting Started Guide
(J8130-90001), this manual
■ HP Procurve Product Documentation CD-ROM
(contains PDF file copies of the documentation for th e
Access Point 420ww/na, including the Management and Configuration
Guide)
■ Console cable
■ Customer Support/Warranty booklet
■ Accessory kit (5064-2 085 ?)
• one mounting bracket
• four 5/8-inch number 12 wood screws to attach the access point to a
wall
• four plastic wall plugs for mounting on brick or concrete wall
• four rubber feet
■ AC power adapter, one of the following:
wireless AP 420 ww/na
Installing the
Australia/New Zealand
China
Continental Europe
Denmark
Japan
Switzerland
United Kingdom/Hong Kong/Singapore
United States/Canada/Mexico
8120-6803 ?
8120-8377
8120-6802
8120-6806
8120-6804
8120-6807
8120-8709
8120-6805
2-1
Installing the hp procurve wireless AP 420 ww/na
Installation Procedures
Installing the
wireless AP 420 ww/na
Installation Procedures
Summary
Follow these easy steps to install your access point. The rest of this chapter
provides details on these steps.
1. Prepare the installation site (page 2-4). Make sure that the physical
environment into which you will be installing the access point is properly
prepared, includ ing havi ng the corr ect netwo rk cabli ng ready to connect
to the access point and having an appropriate location for the access
point. Please see page 2-3 for some installation precautions.
2. Verify that the access point passes self test (page 2-5). This is a
simple process of plugging the access point into a power source, or into
a switch that provides Power over Ethernet, and observing that the LEDs
on the access point’s front panel indicat e correct ac cess point ope ration.
3. Mount the access point ( page 2-7). The Access Point 420ww/na can be
mounted on a wall, or on a horizontal surface.
4. Connect power to the a ccess point (page 2-9). Once the access point
is mounted, plug it into the nearby main power source, or into a switch
that provides Power over Ethernet.
2-2
5. Connect to the networ k (page 2-10). Using the ap pro priate ne twork
cable, connect th e acce ss point t o a n etwork conn ecti on poi nt, su ch as a
switch.
6. Position the antennas on the access point (page 2-10). Position
each antenna along a different axis to enhance signal coverage.
7. Connect a console to the ac cess poin t (opt ion al—page 2-11). You
may wish to modify the access point’s configuration, for example, to
configure an IP address so it can be managed using a web browser, from
an SNMP network management station, or through a Telnet session.
Configuration ch ange s can be m ade easily by using the i ncl uded c onso le
cable to connect a PC to the access point’s console port.
At this point, your access point is fully installed. See the rest of this chapter if
you need more detailed information on any of these installation steps.
Installing the wireless AP 420 ww/na
Installation Procedures
Installation Precautions:
Follow these precautions when installing your HP Access Point 420ww/na.
Cautions ■ Make sure that the power source circuits are properly grounded, then use
the power adapter supplied with the access point to connect it to the
power source.
■ You can alternatively power the access point through a network connec-
tion to a switch or other network connection device that provides Power
over Ethernet. However, note that if the access point is connected to a
power source, Power over Ethern et will be disabled.
■ Use only the AC power adapter supplied with the access point. Use of
other adapters, including ada pt ers that came with other HP network
products, may result in damage to the equipment.
■ When installing the access point, note that the AC outlet should be near
the access point and should be easi ly accessi ble in case the access po int
must be powered off.
■ Ensure that the access point does not overload the power circui ts, wiring,
and over-current protection. To determine the possibility of overloading
the supply circuits, add together the ampere ratings of all devices installed
on the same circuit as the access point and compare the total with the
rating limit for the circuit. The maximum ampere rat ings are usually
printed on the devices near the AC power connectors.
■ Do not install the access point in an environment where the operating
ambient temperature might exceed 55°C (131°F).
■ Make sure the air flow around the sides of the access point is not
restricted.
wireless AP 420 ww/na
Installing the
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Installing the wireless AP 420 ww/na
Installation Procedures
1. Prepare the Installation Site
■ Cabling Infr astructure - Ensure th at the cabling infrastructure meets
the necessary network specifications. See the following table for cable
types and lengths, and see appendix B, “Access Point Port and Network
Cables” for more information:
Table 2-1. Summary of Cable Types to Use With the Access Point
Port Type Cable Type Length Limits
Twisted-Pair Cables
10/100Base-TX • 10 Mbps operatio n:
Installing the
wireless AP 420 ww/na
100 meters
Category 3, 4, or 5, 100-ohm unshielded
twisted-pair (UTP)
• 100 Mbps operation:
Category 5, 100-ohm UTP or shielded
twisted-pair (STP) cable.
■ Installation Lo cation - Before installing the access point, plan its loca-
Note: Since the 10Base-T operation is through
10/100Base-TX ports, if you ever want to
upgrade the ports to 100Base-TX, it would be
best to cable the por ts initially with catego ry 5
cable.
The 10/100-Base-TX port on the
Access Point 420ww/na uses an MDI pin
configuration, which requires yo u to use
straight-through cable when connecting to
another device that has an MDI-X port, or
crossover cable when connecting to a device
that has an MDI port. However, if the device to
which you are connecting supports autoMDIX, then you can use either straightthrough or crosso ver cable.
tion and orientation relative to other devices and equipment:
• Try to pla ce th e access point in the center of your wireless network .
Normally, the higher you place the antenna, the better the performance. You may need to reposition the access poin t after testing the
signal strength on several wireless clients to ensure that the access
point’s location provides optimal recept ion throughout your offic e.
• In the back of the access point, leave at lea st 7.6 cm (3 inches) of space
for the twisted-pair cabling and the power cord.
• On the sides of the access point, leave at least 7.6 cm (3 inches) for
cooling.
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Installing the wireless AP 420 ww/na
Installation Procedures
3. Verify the Access Point Passes the Self Test
Before mounting the acce ss point in its network location, you should first
verify that it is working properly by plugging it into a power source, or a switch
that provides Power over Ethernet, and verifying that it passes its self test.
1. Connect a network cable from a PoE source device (such as a switch) to
the RJ-45 jack on the back of the access point, or connect the power
adapter supplied with the access point to the power connector on the back
of the access point, and then into a properly grounded el ectrical outlet.
Connect network
cable to PoE switch
Note The AP 420 ww/na does not have a power switch. It is powered on when
the power adapter is connected to the access point and to a power source, or
when a network cable is connected to the access point and to a network device
that provides Power over Ethernet. For safety, when connecting to an electrical outlet, the power outlet should be located near the access point.
Or connect power adapter
to the power connector
wireless AP 420 ww/na
Installing the
Use only the AC power adapter supplied with the access point. Use of other
adapters, including adapters that came with other HP network products, may
result in damage to the equipment.
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Installing the wireless AP 420 ww/na
Installation Procedures
Installing the
wireless AP 420 ww/na
2. Check the LEDs on the
Power LED
access point as described below.
Ethernet LED
Wireless LED
When the access point is powered on, it performs its diagnostic self test.
The self test takes approximately 50 seconds to complete.
LED Behavior:
During the self test:
• The 10/100BASE-T and Wireless LEDs go off and then may come on
again during phases of the se lf test. For the duration of the self test,
the Power LED blinks.
When the self test completes successfully:
•The Power LED remains on.
•The 10/100BASE-T and Wireless LEDs on the top of the access point go
into their normal operational mode:
– If the ports are connected to active network devices, the LEDs
should be on.
– If the ports are not connected to active network devices, the LEDs
will stay off.
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If the LED display is different than what is described above, especially if
the Power LED does not stop blinking, the self test has not completed
correctly. Refer to chapter 4, “Troubleshooting” for diagn o stic help.
Installing the wireless AP 420 ww/na
Installation Procedures
4. Mount the Access Point
After you have veri fied that the access poin t passes the self test, you are ready
to mount the access point in a stable location. The Access Point 420ww/na can be
mounted in these ways:
■ on a wall
■ on a horizontal surface
Wall Mounting
Y ou can mount the access point on a wall as shown in the illustrations on the
next page.
Caution The access point should be mounted only to a wall or wood surface that is at
least 1/2-inch plyw ood or its equivalent.
1. Position the mounting bracket on the wall, and ma rk the holes.
2. T o moun t the access point on a plastered b rick or conc rete wall, fi rst drill
four holes 22 mm deep and 3.5 mm in diameter, and press the included
four wall plugs firmly into the drilled holes until they are flush with the
surface of the wall.
3. Set the four 5/8-inch number 12 wood screws in the holes, leaving about
3 mm (0.12 in.) clearance from the wall.
4. Position the mounting bracket over the wall screws, slide the bracket onto
the screws, and then tight en down the screws.
5. Slide the access point into the protruding slots on the back of the
mounting bracket. The two retaining latches will slip into place over the
back edge of the access point.
6. To prevent unauthorized removal of the ac cess point, you can use a
Kensington Slim MicroSaver security cable (not included) to attach the
access point to an immovable object.
wireless AP 420 ww/na
Installing the
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