Cisco Aironet 1240AG Series Access Point Hardware Installation Guide, OL-8371-05
Installing the Access Point
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Installing the Access Point

Table Of Contents

Installing the Access Point

Safety Information

FCC Safety Compliance Statement

General Safety Guidelines

Warnings

Unpacking the Access Point

Package Contents

Basic Installation Guidelines

Controller Discovery Process for Lightweight Access Points

Deploying the Access Points on the Wireless Network

Access Point Layout and Connectors

Mounting Overview

Mounting on a Horizontal or Vertical Surface

Mounting Below a Suspended Ceiling

Mounting Above a Suspended Ceiling

Mounting Access Point on a Desktop or Shelf

Cable Security Bracket

Removing the Cable Security Bracket

Attaching the Access Point to the Mounting Plate

Securing the Access Point

Using a Security Cable

Securing the Access Point to the Mounting Plate

Connecting the Ethernet and Power Cables

Connecting to an Ethernet Network with an Inline Power Source

Connecting to an Ethernet Network with Local Power

Powering Up the Access Point


Installing the Access Point


This chapter describes the installation of the access point and includes these sections:

Safety Information

Warnings

Unpacking the Access Point

Basic Installation Guidelines

Controller Discovery Process for Lightweight Access Points

Mounting Overview

Mounting on a Horizontal or Vertical Surface

Mounting Below a Suspended Ceiling

Mounting Above a Suspended Ceiling

Mounting Access Point on a Desktop or Shelf

Cable Security Bracket

Attaching the Access Point to the Mounting Plate

Securing the Access Point

Connecting the Ethernet and Power Cables

Powering Up the Access Point

Safety Information

Follow the guidelines in this section to ensure proper operation and safe use of the access point.

FCC Safety Compliance Statement

The FCC with its action in ET Docket 96-8 has adopted a safety standard for human exposure to radio frequency (RF) electromagnetic energy emitted by FCC certified equipment. When used with approved Cisco Aironet antennas, Cisco Aironet products meet the uncontrolled environmental limits found in OET-65 and ANSI C95.1, 1991. Proper installation of this radio according to the instructions found in this manual will result in user exposure that is substantially below the FCC recommended limits.

General Safety Guidelines

Do not hold any component containing a radio so that the antenna is very close to or touching any exposed parts of the body, especially the face or eyes, while transmitting.

Warnings

Translated versions of the following safety warnings are provided in "Translated Safety Warnings."


Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS

Warning Read the installation instructions before you connect the system to its power source. Statement 1004

Warning This product must be connected to a power-over-ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source. Statement 353

Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 20A Statement 1005

Warning Do not operate your wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use.
Statement 245B

Warning In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons. Statement 332

Unpacking the Access Point

Follow these steps to unpack the access point:


Step 1 Open the shipping container and carefully remove the contents.

Step 2 Return all packing materials to the shipping container and save it.

Step 3 Ensure that all items listed in the "Package Contents" section are included in the shipment. Check each item for damage. If any item is damaged or missing, notify your authorized Cisco sales representative.


Package Contents

Each access point package contains the following items:

Cisco Aironet 1240AG Series Access Point or Cisco Aironet 1240AG Series Lightweight Access Point

Cisco Aironet 1240AG Series Power Module (universal power module)-optional

Mounting hardware kit

One mounting plate with cable security bracket

Two suspended ceiling T-rail clips, spacers (accommodates standard and recessed T-rails), and nuts.

One security hasp

Two 6 x 32 x 1/2 in. pan head Phillips machine screws

Four 8 x 18 x 3/4 in. pan head Phillips sheet metal screws

Four #8 plastic wall anchors

One 10 x 24 nut (for ground stud on mounting bracket)

Four rubber foot pads

Two cable tie wraps

Product quick start guide

Product translated safety warnings document

Cisco product registration and Cisco documentation feedback cards

Basic Installation Guidelines

Because the access point is a radio device, it is susceptible to interference that can reduce throughput and range. Follow these basic guidelines to ensure the best possible performance:

Ensure that a site survey has been performed to determine the optimum placement of access points.

For lightweight access points, check the latest release notes to ensure that your controller software version supports the access points to be installed. You can find the controller release notes by selecting your controller under Wireless LAN Controllers at this URL:

http://www.cisco.com/cisco/web/psa/default.html

Ensure that access points are not mounted closer than 20 cm (7.9 in) from the body of all persons.

Do not mount the access point within 3 feet of metal obstructions.

Install the access point away from microwave ovens. Microwave ovens operate on the same frequency as the access point and can cause signal interference.

Do not mount the access point outside of buildings.

Do not mount the access points on building perimeter walls unless outside coverage is desired.

Controller Discovery Process for Lightweight Access Points

The lightweight access point supports these controller discovery processes:

DHCP server discovery—Uses DHCP Option 43 to provide controller IP addresses to the access points. Cisco switches support a DHCP server option. For additional information, refer to the "Configuring DHCP Option 43 for Lightweight Access Points" section.

DNS server discovery—The access point uses the name CISCO-LWAPP-CONTROLLER.<local domain> to discover the controller IP addresses from a DNS server. Where <local domain> is the access point domain name.

Locally stored controller IP addresses—If the access point was previously associated to a controller, the IP addresses of the primary, secondary, and tertiary controllers are stored in the access point non-volatile memory. The process of storing controller IP addresses in access points for later deployment is called priming the access point. For additional information, refer to the "Priming Lightweight Access Points Prior to Deployment" section.

You can also manually configure controller information using CLI commands on new (out-of-the-box) access points that are not connected to a controller. For additional information refer to the "Manually Configuring Controller Information Using the Access Point CLI" section.

Cisco recommends that you configure a DHCP server with Option 43 to provide the controller IP addresses to your access points. Cisco switches provide a DHCP server option that is typically used for this purpose.

Deploying the Access Points on the Wireless Network

Prior to beginning the actual access point deployment, perform these tasks:

Ensure that a site survey has been preformed.

Ensure that your network infrastructure devices are operational and properly configured.

For lightweight access points, perform these tasks:

Ensure that your controllers are connected to switch trunk ports.

Ensure that your switch is configured with untagged access ports for connecting your access points.

Ensure that a DHCP server with Option 43 configured is reachable by your access points.

To deploy your access points, follow these steps:


Step 1 Obtain the access point location map created during your building site survey.

Step 2 Review the access point locations and identify the specific mounting methods required for each access point location.

Step 3 For each access point perform these steps:

a. For lightweight access points, record the access point MAC address on the access point location map. When you have completed the access point deployment, return the access point MAC addresses and the access point locations on the access point location maps or floor plans to your network planner or manager. The network operators can use the MAC address and location information to create maps for precise wireless system management.

b. Attach your access point to the mounting plate (see the "Attaching the Access Point to the Mounting Plate" section).

c. Mount the access point at the indicated destination using the specified mounting method. For specific mounting instructions, see these sections:

Horizontal or vertical surface, such as a ceiling or wall (see the "Mounting on a Horizontal or Vertical Surface" section).

Below a suspended ceiling (see the "Mounting Below a Suspended Ceiling" section).

Above a suspended ceiling (see the "Mounting Above a Suspended Ceiling" section).

On a desktop or shelf (see the "Mounting Access Point on a Desktop or Shelf" section.

d. Optionally secure the access point using a padlock or security cable (see the "Securing the Access Point" section).

e. Connect the access point cables (Ethernet, optional power, optional antennas). For instructions see the "Connecting the Ethernet and Power Cables" section.

f. On power up, verify that the access point is associated to a controller and operating normally. For additional information, refer to the "Checking the Autonomous Access Point LEDs" section or the "Checking the Lightweight Access Point LEDs" section.

Step 4 For lightweight access points, after your access points are deployed, ensure that your controller is not configured as a master controller. A master controller should only be used for configuring access points and not in a working network.


Access Point Layout and Connectors

Figure 2-1 illustrates the 2.4-GHz connector end of the access point.

Figure 2-1 Access Point 2.4-GHz Connector End

1

2.4-GHz antenna connector (left)

6

Console port (RJ-45)

2

Ethernet LED

7

Ethernet port (RJ-45)

3

Radio LED

8

48-VDC power port

4

Status LED

9

2.4-GHz antenna connector (right/primary)

5

MODE button

 

Figure 2-2 illustrates the 5-GHz connector end of the access point.

Figure 2-2 Access Point 5-GHz Connector End

1

5-GHz antenna connector (left)

3

Security key slot )

2

5-GHz antenna connector (right/primary

 

Mounting Overview

You can mount the access point on any of the following surfaces:

Horizontal or vertical flat surfaces, such as walls or ceilings

Suspended ceilings (above and below)


Caution The access point, the antennas, and the power source (power injector or power module) are not designed for outdoor use and must be located in an indoor environment.

The access point ships with a detachable mounting plate and the necessary mounting hardware. Because it is detachable, you can use the mounting plate as a template to mark the positions of the mounting holes for your installation. You then install the mounting plate and attach the access point when you are ready.

Refer to Figure 2-3 to locate the various mounting holes for the method you intend to use.

Figure 2-3 Mounting Plate

1

Key hole clips

4

Ceiling or wall mounting holes

2

Cable access openings

5

Ground connection

3

Locking detent

6

Cable tie point



Caution Only the fiber-optic power injector (AIR-PWRINJ-FIB) has been tested to UL 2043 for operation in a building's environmental air space; no other power injectors or power modules have been tested to UL 2043 and they should not be placed in a building's environmental air space, such as above suspended ceilings.


Note The access point provides adequate fire resistance and low smoke-producing characteristics suitable for operation in a building's environmental air space (such as above suspended ceilings) in accordance with Section 300-22(C) of the National Electrical Code (NEC).



Note When mounting the access point in a building's environmental air space, you must use Ethernet cable suitable for operation in environmental air space in accordance with Section 300-22(C) of the National Electrical Code (NEC).


A mounting hardware kit is provided that contains the hardware and fasteners necessary to mount the access point. Refer to the Table 2-1 to identify the materials you need to mount your access point, then go to the section containing the specific mounting procedure.

Table 2-1 Material Needed to Mount Access Point

Mounting Method
Materials Required
In Kit

Horizontal or vertical surface

Four #8 x 1 in. (25.4 mm) screws
Four wall anchors
3/16 in. (4.7 mm) or 3/32 in. (2.3 mm) drill bit
Drill
Standard screwdriver

Yes
Yes
No
No
No

Suspended ceiling

Two T-rail clips with studs
Two plastic spacers
Two 1/4-20 Keps nuts with built-in washers
Standard screwdriver, wrench, or pliers

Yes
Yes
Yes
No


Mounting on a Horizontal or Vertical Surface

Follow these steps to mount the access point on a horizontal or vertical surface.


Step 1 Use the mounting plate as a template to mark the locations of the four mounting holes.


Note When mounting on a vertical surface, position the cable security bracket on the bottom.


Step 2 Drill one of the following sized holes at the locations you marked:

3/16 in. (4.7 mm) if you are using wall anchors

1/8 in. (6.3 mm) if you are not using wall anchors

Step 3 Install the anchors into the wall if you are using them. Otherwise, go to Step 4.

Step 4 Secure the mounting plate to the surface using the #8 fasteners.


Note On a vertical surface, mount the plate with the security hasp slot on the top.


Step 5 Attach the access point to the mounting plate.


Note For a more secure installation you should attach the mounting plate to a stud or major structural member and use the appropriate fasteners.



Mounting Below a Suspended Ceiling


Note To comply with NEC code, a #10-24 grounding lug is provided on the mounting plate.


You should review Figure 2-4 before beginning the mounting process.

Figure 2-4 T-Rail Mounting Parts

1

Suspended ceiling T-rail

4

mounting plate

2

T-rail clips

5

Keps nut (contains an attached lock washer)

3

Plastic spacer (used with recessed ceiling tiles)

 

Follow these steps to mount your access point on a suspended ceiling:


Step 1 Decide where you want to mount the access point.

Step 2 Attach two T-rail clips to the suspended ceiling T-rail.

Step 3 Use the mounting plate to adjust the distance between the T-rail clips so that they align with the holes in the mounting plate.

Step 4 Use a standard screwdriver to tighten the T-rail clip studs in place on the suspended ceiling T-rail. Do not overtighten.

Step 5 If using recessed ceiling tiles, install a plastic spacer on each T-rail clip stud. The spacer's legs should contact the suspended ceiling T-rail.

Step 6 Attach the mounting plate to the T-rail clip studs and start a Keps nut on each stud.

Step 7 Use a wrench or pliers to tighten the Keps nuts. Do not overtighten.

Step 8 To attach the access point to the mounting plate, see the "Attaching the Access Point to the Mounting Plate" section.

Step 9 If you need additional security, refer to the "Securing the Access Point" section for additional information.

Step 10 Verify the access point is operating (see the "Powering Up the Access Point" section).


Mounting Above a Suspended Ceiling

The access point mounting plate is designed to be integrated into the T-bar grid above the tiles of a suspended ceiling. Using a T-bar box hanger and bracket mounting clip (not supplied) such as the
Erico 512A and BHC, you orient the access point antenna just above the top surface of a standard ceiling tile. You may need to modify a thicker tile to allow room for the antenna.

It may be helpful to refer to Figure 2-5 before proceeding.

Figure 2-5 Above Suspended Ceiling Parts

1

Suspended ceiling T-rail

4

T-bar box hanger

2

T-rail clip

5

Bracket mounting clip

3

Height adjustment screw

   


Caution Only the fiber-optic power injector (AIR-PWRINJ-FIB) has been tested to UL 2043 for operation in a building's environmental air space; no other power injectors or power modules have been tested to UL 2043 and they should not be placed in a building's environmental air space, such as above suspended ceilings.

The bracket mounting clip requires the use of two mounting clip holes on the mounting plate (see Figure 2-6).

Figure 2-6 Mounting Plate Holes

1

Bracket mounting clip holes

 

Follow these steps to mount the access point above a suspended ceiling.


Step 1 Insert the bracket mounting clip's tab into the large hole on the access point mounting plate.

Step 2 Place the clip over the T-bar box hanger and secure it to the access point mounting plate (see Figure 2-7) with the 1/4-20 fastener (supplied with the T-bar hanger).

Figure 2-7 Access Point Mounting Plate


Note The illustration shows the access point mounting plate mounted perpendicular to the T-bar box hanger. You can also mount the bracket parallel to the T-bar box hanger.


Step 3 Determine the location in the ceiling where you will mount the access point and remove an adjacent ceiling tile.

Step 4 Orient the access point 2-GHz and 5-GHz antennas so that they are pointing down when mounted on the T-bar Box hanger.

Step 5 Adjust the height of the T-bar box hanger to provide antenna clearance above the ceiling tile using the height adjusting screws (refer to Figure 2-5).

Step 6 Attach the T-rail clips on each end of the T-bar box hanger to the ceiling grid T-rails. Make sure the clips are securely attached to the T-rails.

Step 7 Connect a drop wire to a building structural element and through the hole provided in the bracket mounting clip. This additional support is required in order to comply with the U.S. National Electrical Safety Code.

Step 8 To attach the access point to the mounting plate, see the "Attaching the Access Point to the Mounting Plate" section.

Step 9 If you need additional security, see the "Securing the Access Point" section for additional information.

Step 10 Verify the access point is operating before replacing the ceiling tile (see the "Powering Up the Access Point" section).


Mounting Access Point on a Desktop or Shelf

When placing the access point on a desktop of shelf, the use of the mounting plate is optional. The mounting plate can be used to shield the user from the hot bottom surface of the access point when movement of the access point may be necessary. The access point is shipped with four rubber pads that you can place on the bottom of the access point or the mounting plate to help prevent sliding or scratching the surface of your desktop or shelf. For information on connecting the access point cables, see the "Connecting the Ethernet and Power Cables" section.

Cable Security Bracket

The access point mounting plate has an attached cable security bracket that covers the console port, Ethernet port, power port, and the mode button to prevent the installation or removal of the cables or the activation of the mode button. If desired, the cable security bracket can be removed prior to attaching the mounting plate to a ceiling or wall.

Figure 2-8 Access Point with Mounting Plate and Cable Security Bracket

1

Mounting plate

3

Access point

2

Cable security bracket

 

Removing the Cable Security Bracket

The cable security bracket (see Figure 2-9) is designed to help prevent someone from using the Mode button to reset the access point to default values or from using the serial console cable to access the access point's CLI interface or from removing the Ethernet cable. If this security protection is not considered necessary, you can remove the cable security bracket.

Figure 2-9 Cable Security Bracket Screws

1

Cable security bracket

3

Mounting plate

2

Cable security bracket screws

   

To remove the cable security bracket from the mounting plate, follow these instructions:


Step 1 Position the mounting plate with the cable security bracket pointing down (see Figure 2-9).

Step 2 Remove the two screws that attach the bracket to the mounting plate using a phillips screw driver.


Attaching the Access Point to the Mounting Plate

Follow these steps to attach the access point to the mounting plate:


Step 1 If your mounting plate has the cable security bracket, follow these steps:

a. Connect the Ethernet cable to the access point Ethernet port (see the "Connecting the Ethernet and Power Cables" section).

b. If not using on-line power, connect the power module's power cable to the access point 48-VDC connector.

c. Carefully feed the Ethernet and power cables through the cable notch on the cable security bracket and slide the cables to the right or left to secure the cables (see the "Cable Security Bracket" section).


Note If your access point is connected to Ethernet in-line power, do not connect the local power module to the access point. Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is connected. If your access point shuts down, you must remove all power and reconnect only a single power source.


Step 2 Line up the four keyhole clips on the mounting plate with the large ends of the keyhole-shaped holes on the access point.


Note The keyhole clips on each side of the mounting plate are offset and can only be positioned in one direction onto the access point.


Step 3 Insert the mounting plate clips into the keyhole shaped holes on the access point.

Step 4 Slide the access point towards the cable security bracket end of the mounting bracket while exerting slight pressure to force the access point and mounting plate together. You will hear a slight click when the locking detents contact the access point and locks it into place.

Step 5 Attach and adjust the antenna(s) or antenna cables to the access point antenna connectors.


Note The 5-GHz antennas and antenna cables have a blue dot or blue label. Connect only antennas or antenna cables with blue dots or labels to the access point's 5-GHz antenna connectors.


Step 6 If your mounting plate does not have the cable security bracket, follow these steps:

a. Connect a CAT 5 Ethernet cable to the access point Ethernet port (see the "Connecting the Ethernet and Power Cables" section).

b. If using local power, insert the power module's power cable into the access point's 48-VDC power port.


Note If your access point is connected to in-line power, do not connect the power module to the access point. Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is connected. If your access point shuts down, you must remove all power and reconnect only a single power source.



Securing the Access Point

There are two ways to secure your access point:

Using a security cable

Securing the access point to the mounting plate

Using a Security Cable

You can secure the access point by installing a standard security cable (such as the Kensington Notebook MicroSaver, model number 64068) into the access point security cable slot (see Figure 2-2). The security cable can be used with any of the mounting methods described in this guide.

Follow these steps to install the security cable.


Step 1 Loop the security cable around a nearby immovable object.

Step 2 Insert the key into the security cable lock.

Step 3 Insert the security cable latch into the security key slot on the access point.

Step 4 Rotate the key right or left to secure the security cable lock to the access point.

Step 5 Remove the key from security cable lock.


Securing the Access Point to the Mounting Plate

The security hasp enables you to use a padlock to secure the access point to the mounting plate. Known compatible padlocks are Master Lock models 120T or 121T.

To install the security hasp, follow these steps:


Step 1 Insert the security hasp's key pin (see Figure 2-10) into the key slot on the access point (see Figure 2-2) and rotate counterclockwise towards the mounting plate.

Figure 2-10 Security Hasp

1

Key pin

4

Padlock

2

Security hasp

5

5-GHz access point end

3

Mounting plate security slot

6

Mounting plate


Step 2 Push the security hasp's padlock flange through the mounting plate's security slot.

Step 3 Place your padlock (user supplied) through the padlock hole in the security hasp's padlock flange
(see Figure 2-11).

Figure 2-11 Security Hasp and Padlock

1

Security hasp

2

Pad lock


Step 4 Push the padlock into the recessed opening between the access point and the mounting plate.


Note When attaching the mounting plate to a vertical surface, place the security cable bracket end of the mounting plate on the bottom.



Connecting the Ethernet and Power Cables

The access point receives power through the Ethernet cable or an external power module. Figure 2-12 shows the power options for the access point.

Figure 2-12 Access Point Power Options


Warning This product must be connected to a Power over Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source. Statement 353

Caution This product and all interconnected equipment must be installed indoors within the same building, including the associated LAN connections (as defined by Environment A of the IEEE 802.3af standard).

The access point power options:

Option 1—Switches with sufficient inline power:

An inline power capable switch, such as the Cisco Catalyst 3550 PWR XL, 3560-48PS, 3750-48PS, 4500 with 802.3AF PoE module, or the 6500 with 802.3AF PoE module

Other inline power switches supporting the IEEE 802.3af inline power standard

Option 2—Switches without sufficient inline power can use the power injector:

Cisco Aironet Power Injector (AIR-PWRINJ3 or AIR-PWRINJ-FIB)

Option 3—Local power using the power module


Note Some older switches and patch panels might not provide enough power to operate the access point. At power-up, if the access point is unable to determine that the power source can supply sufficient power, the access point automatically deactivates both radios to prevent an over-current condition. The access point Status LED turns amber and an error log entry is created (refer to the "Checking the Autonomous Access Point LEDs" section or the "Checking the Lightweight Access Point LEDs" section).


Connecting to an Ethernet Network with an Inline Power Source


Caution Be careful when handling the access point; the bottom plate might be hot.


Note If your access point is connected to in-line power, do not connect the power module to the access point. Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is connected. If your access point shuts down, you must remove all power and reconnect only a single power source.


Follow these steps to connect the access point to the Ethernet LAN when you have an inline power source:


Step 1 Connect a Category 5 Ethernet cable to the RJ-45 Ethernet connector labeled Ethernet on the access point (see Figure 2-13).

Figure 2-13 Ethernet and Power Ports

1

Ethernet port

2

48 VDC power port


Step 2 Connect the other end of the Ethernet cable to one of the following:

A switch with inline power (see the "Connecting the Ethernet and Power Cables" section).

The end of a Cisco Aironet power injector labeled To AP/Bridge. Connect the other end labeled To Network to your 10/100 Ethernet LAN.


Connecting to an Ethernet Network with Local Power


Caution Be careful when handling the access point; the bottom plate might be hot.


Note If your access point is connected to in-line power, do not connect the power module to the access point. Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is connected. If your access point shuts down, you must remove all power and reconnect only a single power source.


Follow these steps to connect the access point to an Ethernet LAN when you are using a local power source:


Step 1 Connect a Category 5 Ethernet cable to the RJ-45 Ethernet connector labeled Ethernet on the access point (see Figure 2-13).

Step 2 Connect the power module output connector to the access point's 48-VDC power port (see Figure 2-13).

Step 3 Plug the other end of the Ethernet cable into an unpowered Ethernet port on your LAN network.

Step 4 Plug the other end of the power module into an approved 100- to 240-VAC outlet.

For information on securing your access point, see the "Securing the Access Point" section.


Powering Up the Access Point

When power is applied to the access point, it begins a routine power-up sequence that you can monitor by observing the three LEDs on the end of the access point. After you observe all three LEDs turning green to indicate the starting of the operating system, the Status LED blinks green signifying that the access point is operational. After a successful power-up sequence, the Status LED turns light green to signify that there are no client devices associated, or it turns blue to signify that there are client devices associated. Refer to the "Checking the Autonomous Access Point LEDs" section or the "Checking the Lightweight Access Point LEDs" section for LED descriptions.


Caution Be careful when handling the access point; the bottom plate might be hot.


Note If your access point is connected to in-line power, do not connect the power module to the access point. Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is connected. If your access point shuts down, you must remove all power and reconnect only a single power source.