The 3Com AP2750 Managed Access Point provides IEEE 802.11a or 802.11b/g wireless access to the
network. The access point is designed for use with a 3Com Wireless LAN Switch, and requires
hardware installation only. All configuration for the access point takes place on the 3Com Wireless
LAN Switch.
You must have a wireless switch device to operate the access point. Two WLAN switch devices can be
connected to the access point:
• 3Com WX4400
• 3Com WX1200
Power can be supplied via Power Over Ethernet (PoE) or by an external power supply. Four 3Com PoE
devices supply power to the access point:
• 3Com PoE Injector
• 3Com 4400PWR PoE Switch
• 3Com Multi-port PoE power supply
• 3Com WX1200
About This Guide
This Quick Start Guide describes the basic installation of the access point. It covers the following topics:
• 3Com AP2750 Managed Access Point Features
• Observing Safety Precautions
•Step 1: Unpacking the Access Point
•Step 2: Preparing for Installation
•Step 3: Attaching the Antennas
•Step 4: Mounting the Access Point
•Step 5: Connecting the Access Point to a Switch
•Step 6: Checking the LED Indicators
• Troubleshooting
3Com AP2750 Managed Access Point Features
LEDs
Antenna
Connectors
Reset
Button
Power Port
Serial Port
Ethernet Port
Mounting
Bracket
FeatureDescription
Power PortThe access point can be powered either via Power Over Ethernet (PoE), or by an
Serial PortThe serial port is not supported.
Ethernet PortThe Ethernet port provides a 10/100BASE-TX Ethernet connection to a 3Com Wireless
LEDsThe LEDs indicate power and activity. See “Checking the LED Indicators” on page 7
Antenna ConnectorsTwo SMA-female antenna connectors allow you to connect antennas that operate in
Reset ButtonThe reset button is accessible from the back of the access point as well as through the
Mounting BracketThe mounting bracket comes attached to the access point. This mounting bracket
external power supply (not included) that is plugged into the Power
LAN switch. The connection can be direct to a 3Com switch or indirect through an
intermediate Layer 2 or Layer 3 network.
Use a standard Category 5 cable with straight-through signaling and standard RJ-45
connectors to connect the access point to the switch on the network.
for details.
2.4 GHz and 5.3 GHz bands.
mounting bracket. Push the reset button to restore the access point to its factory
default settings.
allows the access point to be mounted to a wall or ceiling.
Port.
Observing Safety Precautions
This equipment must be installed in compliance with local and national building codes, regulatory
restrictions, and FCC rules. For the safety of people and equipment, only professional network personnel
should install the access point.
WARNING: To comply with FCC radio frequency (RF) exposure limits, a minimum body-to-
antenna distance of 20 cm (8 in.) must be maintained when the access point is operational.
WARNING: To avoid possible injury or damage to equipment, you must use power supply equipment
that is safety certified according to UL, CSA, IEC, or other applicable national or international safety
requirements for the country of use. All references to power supply in this document refer to equipment
meeting these requirements.
1Unpacking the Access Point
Make sure that you have the following items, which are included with the access point:
• Two external 2.4 GHz and 5.3 GHz dual-band antennas
• Mounting bracket (attached to the access point)
• Wall-mounting hardware:
• Locking bar (used for securing a wall- or ceiling-mounted installation)
• Two sheet metal screws
• Two thread screws
• Two wall anchors
• Four adhesive rubber feet (used for a flat-surface installation).
2Preparing for Installation
It is advisable to connect the power (if using an external power supply) and check the Ethernet cables
and LEDs before installing the access
point in a hard-to-reach location. Additionally, observe the
following items before mounting or connecting the access point:
Installation ItemDescription
Switch port3Com recommends that you install and configure the 3Com Wireless LAN switch
CablingMake sure that standard Category 5 cable with straight-through signaling is
Power RequirementsPower can be supplied via an 802.3af Power Over Ethernet (PoE)-compliant device
MAC AddressRecord the access point MAC address in a safe place before the access point is
before installing the access point. Set the port type on the switch to an AP2750
access point.
installed at the site before you install the access point.
Make sure that the cable is highly flexible and that there is no extra covering on the
RJ-45 connector that could prevent the cable from being routed through the
mounting bracket.
or by an external power supply with a minimum 5v @ 2.0 amp.
If using an external power supply, make sure the power outlet is accessible. The
power supply plug is the only means of disconnecting the access point from power.
installed in a hard-to-reach location.
The MAC address is printed on the back of the access point. Additional MAC
address labels are shipped with the access point.
3Attaching the Antennas
Carefully unpack the standard detachable antennas. Screw the antennas on to the antenna connectors
on the access point and hand-tighten them. After network startup, you may need to adjust the antennas
to fine-tune coverage in your area.
For best results, adjust the antennas so that they are perpendicular with the floor and ceiling.
CAUTION: Do not handle the antenna tips, especially after they are connected to the access
point. This could lead to electrostatic discharge (ESD), which could damage the equipment.
4Mounting the Access Point
The access point can be mounted on the following types of surfaces:
• Wall, ceiling, or electrical box (NEMA enclosure)
•Tabletop
.
CAUTION: The access point is intended for indoor use only. Do not install the access point
outdoors unless you install it in a properly installed outdoor access point enclosure.
Wall, Ceiling, or Electrical Box Mounting
To mount the access point to a wall, ceiling, or electrical box:
1Remove the access point from the mounting bracket.
2Screw the mounting bracket to a wall, ceiling, or electrical box (NEMA enclosure):
• If mounting to a solid surface wall or ceiling, use the two sheet metal screws.
• If mounting to drywall, use the two sheet metal screws and two wall anchors.
• If mounting to an electrical box (NEMA enclosure), use the two threaded screws.
3Route the power cable (if using an external power supply) and Ethernet cable
through the large opening on the back of the mounting bracket.
.
CAUTION: For easy installation and removal of the access point from the mounting
bracket, make sure that there is sufficient flexibility with the cable and that there is
adequate service loop (that is, enough cable routed through the mounting bracket
to easily connect the cable to the access point.) If not enough cable is routed
through the back of the mounting bracket, or if the cable is inflexible, it can be
difficult to install or remove the access point from the mounting bracket.
The figures below show the mounting bracket being mounted to a wall, and then a cable
being routed through the large opening on the back of the mounting bracket.
C
radl
e
Installing the mounting bracket
Routing a cable
4Connect the Ethernet cable (and power cable, if applicable) to the port(s) on the
front of the access point.
5Snap the access point onto the mounting bracket.
To install the locking bar, push the locking bar through the opening in the side of the
mounting bracket until the hole on the locking bar is exposed. Insert a lock (not provided)
through the hole on the locking bar, and then close the lock to secure it in place.
.11a
.11g
.100
.10
Inserting the locking bar
Securing the bar with a lock
.10
.100
.11g
.11a
Tabletop Mounting
To install the access point on a flat surface such as a table or desktop:
CAUTION: Do not place the access point on any type of metal surface. Select a location that
is clear of obstructions and provides good reception.
1Remove the backing from the four rubber feet and attach them on the bottom of
the mounting bracket that is attached to the access point.
2Place the access point on the table.
3Connect the Ethernet cable (and power cable, if applicable) to the port(s) on the
front of the access point.
5Connecting the Access Point to a Switch
3Com recommends that you install and configure the 3Com Wireless LAN switch before installing the
access point. If the switch is already installed and configured for the access point, you can immediately
verify the cable connection when you plug the cable into the access point.
WARNING: Do not connect or disconnect cables or otherwise work with the access point
during periods of lightning activity.
You can connect the access point directly to a 3Com Wireless LAN Switch port or indirectly to
3Com
Wireless LAN switches through an intermediate Layer 2 or Layer 3 network. In either case, use
Category 5 cable with straight-through signaling for each access point connection.
• To connect the access point directly to a 3Com Wireless LAN Switch, configure the switch port
as an AP2750 access point and then insert the cable into the switch and verify the link.
• To connect the access point indirectly to a 3Com Wireless LAN Switch through the network,
configure a Distributed Access Point connection on the switch.
Note: For instructions on configuring the access point, see the Mobility System
Configuration Guide or the 3Com Wireless LAN Switch Reference Manual.
6Checking the LED Indicators
When the access point is connected to power, LEDs indicate activity as follows (solid LED indicates
connection; blinking LED indicates activity):
LEDColorIndicates
POWER
11a
11b/g
100
PowerGreen
10
11aGreen
11b/gGreen
100Green
10Green
Off
Off
Off
Off
Off
The access point is powered up
and operating normally.
The access point is not receiving
power or there is a fault with the
power supply.
The access point has WLAN
frame transmission over the
802.11a 5.3 GHz radio band.
No link is present.
The access point has WLAN
frame transmission over the
802.11g 2.4 GHz radio band.
No link is present.
The access point has a 100 Mbps
Fast Ethernet connection.
No link is present.
The access point has a 10 Mbps
Ethernet connection.
No link is present.
Troubleshooting
Refer to the Mobility System Configuration Guide or to the 3Com Wireless LAN Switch Reference
Manual to obtain the access point status.
The 3Com AP2750 Managed Access Point (3CRWX275075A)
with th
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This product must maintain a minimum body to antenna distance of 20 cm. Under these conditions this
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on the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300 GHz)].
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Declares
that the Product:
Brand Name: 3Com Cor
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Equi
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Complies with Part 15 of
may not cause harmful interferen
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E
UROPE
– EU D
ECLARATION
OF CONFO
RMITY
E
UROPE
- D
ECLA
RATION
OF CONFO
Markin
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pr
ovisions of the R&TTE Directive of the European Union (1
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NOTE: To ensure pr
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Configuration Guide.
RMITY
IN LAN
English Hereby, 3Com Corporation, declares that this RLAN device is in
Finnish 3Com Corporation vakuuttaa täten että RLAN device tyyppinen laite
Dutch Hierbij verklaart 3Com Corporation dat het toestel RLAN device in
French Par la présente 3Com Corporation déclare que l'appareil RLAN
ove symb
301 893
oduc
installed. Refer to the Wireless LAN Mobility System, Wireless LAN Switch and Controller
GUAGES OF THE EUROPEA
ol indicates
, EN301 489-17
t operation is
compliance with the essential requirements and other relevant
provisions of Directive 1999/5/EC.
on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien
direktiivin muiden ehtojen mukainen.
overeenstemming is met de essentiële eisen en de andere
overeenstemming is met de essentiële eisen en de andere
relevante bepalingen van richtlijn 1999/5/EG
relevante bepalingen van richtlijn 1999/5/EG
Bij deze verklaart 3Com Corporation dat deze RLAN device voldoet
Bij deze verklaart 3Com Corporation dat deze RLAN device voldoet
aan de essentiële eisen en aan de overige relevante bepalingen
aan de essentiële eisen en aan de overige relevante bepalingen
van Richtlijn 1999/5/EC.
van Richtlijn 1999/5/EC.
device est conforme aux exigences essentielles et aux autres
dispositions pertinentes de la directive 1999/5/CE
Par la présente, 3Com Corporation déclare que ce RLAN device est
conforme aux exigences essentielles et aux autres dispositions de
la directive 1999/5/CE qui lui sont applicables
compl
iance with the Essential Requirements and other relevant
, EN60950
in compliance with
N COMM
verklaart 3Com Corporation dat het toestel RLAN device in
999/5/EC). This
local regulations, select the c
UNITY
equipment meets the following
ount
ry in whi
ch the
Swedish Härmed intygar 3Com Corporation att denna RLAN device står I
Danish Undertegnede 3Com Corporation erklærer herved, at følgende
German Hiermit erklärt 3Com Corporation, dass sich dieser/diese/dieses
Greek
Italian Con la presente 3Com Corporation dichiara che questo RLAN
Spanish Por medio de la presente 3Com Corporation declara que el RLAN
överensstämmelse med de väsentliga egenskapskrav och övriga
relevanta bestämmelser som framgår av direktiv 1999/5/EG.
udstyr RLAN device overholder de væsentlige krav og øvrige
relevante krav i direktiv 1999/5/EF
Managed Accces Point in Übereinstimmung mit den grundlegenden
Anforderungen und den anderen relevanten Vorschriften der
Richtlinie 1999/5/EG befindet". (BMWi)
Hiermit erklärt 3Com Corporation die Übereinstimmung des
Gerätes RLAN device mit den grundlegenden Anforderungen und
den anderen relevanten Festlegungen der Richtlinie 1999/5/EG.
(Wien)
device è conforme ai requisiti essenziali ed alle altre disposizioni
pertinenti stabilite dalla direttiva 1999/5/CE.
device cumple con los requisitos esenciales y cualesquiera otras
disposiciones aplicables o exigibles de la Directiva 1999/5/CE
E
UROPE
– R
ESTRI
CTIONS
FOR USE OF
Portuguese 3Com Corporation declara que este RLAN device está conforme
Malti Hawnhekk, 3Com Corporation, jiddikjara li dan RLAN device
Estonian Käesolevaga kinnitab 3Com Corporation seadme RLAN device
Hungarian
Slovak 3Com Corporation týmto vyhlasuje, že RLAN device spĺňa základné
Czech 3Com Corporation tímto prohlašuje, že tento RLAN device je ve
Slovene Šiuo 3Com Corporation deklaruoja, kad šis RLAN device atitinka
Lithuanian Šiuo 3Com Corporation deklaruoja, kad šis RLAN device atitinka
Latvian Ar šo 3Com Corporation deklarē, ka RLAN device atbilst Direktīvas
A copy of the signed Declaration of Conformity can be downloaded from the Product Support web page for the
AP2750 (
3CRWX275075A)
2.4GHZ F
• This device may be operated indoors or outdoors in all countries of the European Community
• In Italy the end-user must apply for a license from the national spectrum authority to operate this
• 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.
REQU
using the 2.4GHz band: Channels 1 – 13, except where noted below.
device outdoors.
com os requisitos essenciais e outras disposições da Directiva
1999/5/CE.
jikkonforma mal-ħtiġijiet essenzjali u ma provvedimenti oħrajn
relevanti li hemm fid-Dirrettiva 1999/5/EC
vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist
tulenevatele teistele asjakohastele sätetele.
Alulírott, 3Com Corporation nyilatkozom, hogy a RLAN device
megfelel a vonatkozó alapvetõ követelményeknek és az 1999/5/EC
irányelv egyéb elõírásainak.
požiadavky a všetky príslušné ustanovenia Smernice 1999/5/ES.
shodě se základními požadavky a dalšími příslušnými ustanoveními
směrnice 1999/5/ES.
esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas.
esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas.
1999/5/EK būtiskajām prasībām un citiem ar to saistītajiem
noteikumiem.
at http://www.3com.com.
ENCIES
IN EUROPEA
N COMMU
NITY COUNTRI
ES
E
UROPE
– R
ESTRI
CTIONS
FOR USE OF
5GHZ F
REQUENCIES IN EUROPEA
N COMMU
NITY COUNTRIES
Allowed Frequency Bands Allowed Channel Numbers Countries