Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points, OL-11321-07
Cisco Aironet 1130AG Series Access Points

Table Of Contents

Cisco Aironet 1130 Series Access Points

IEEE 802.11b/g (2.4-GHz Band)

Channels and Maximum Power Levels

IEEE 802.11b/g (2.4-GHz Band)

IEEE 802.11a (5-GHz Band)

Special Country Restrictions

Changing the Lightweight Access Point Output Power


Cisco Aironet 1130 Series Access Points


This chapter lists the 1130 series lightweight access point (models: AIR-LAP1131G-x-K9 and AIR-LAP1131AG-x-K9) IEEE 802.11b/g (2.4-GHz) and the IEEE 802.11a (5-GHz) channels and maximum power levels supported by the world's regulatory domains. For additional product hardware information refer to the Cisco Aironet 1130AG Series Access Point Hardware Installation Guide.

The following topics are covered in this chapter:

Channels and Maximum Power Levels

Special Country Restrictions

Changing the Lightweight Access Point Output Power

IEEE 802.11b/g (2.4-GHz Band)

When shipped from the factory, the AIR-LAP1131G-x-K9 (single radio) access points support the channels and maximum power levels listed in Table 3-1 for their regulatory domain.


Note The B columns indicate IEEE 802.11b data rates and the G colums indicate IEEE 802.11g data rates.


.

Table 3-1 Channels and Maximum Conducted Power for the 802.11g Radio `
with 3-dBi Integrated Antenna 

Channel Id
Center Freq
(MHz)
Maximum Conducted Power Levels (dBm) in the
Regulatory Domains
-A
-E
-P
B
G
B
G
B
G

1

2412

20

17

14

14

14

14

2

2417

20

17

14

14

14

14

3

2422

20

17

14

14

14

14

4

2427

20

17

14

14

14

14

5

2432

20

17

14

14

14

14

6

2437

20

17

14

14

14

14

7

2442

20

17

14

14

14

14

8

2447

20

17

14

14

14

14

9

2452

20

17

14

14

14

14

10

2457

20

17

14

14

14

14

11

2462

20

17

14

14

14

14

12

2467

-

-

14

14

14

14

13

2472

-

-

14

14

14

14

14

2484

-

-

-

-

14

-


Channels and Maximum Power Levels

IEEE 802.11b/g (2.4-GHz Band)

When shipped from the factory, the AIR-AP1131AG-x-K9 (dual radio) access points support the channels and maximum power levels listed in Table 3-2 for their regulatory domain.


Note The B columns indicate IEEE 802.11b data rates and the G colums indicate IEEE 802.11g data rates .


.

Table 3-2 Channels and Maximum Conducted Power for the 802.11b/g Radio with 3-dBi Integrated Antenna 

Channel Id
Center Freq
(MHz)
Maximum Conducted Power Levels (dBm) in the Regulatory Domains
-A
-C
-E
-I
-J
-K
-N
-P
-Q
-S
-T
B
G
B
G
B
G
B
G
B
G
B
G
B
G
B
G
B
G
B
G
B
G

1

2412

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

2

2417

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

3

2422

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

4

2427

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

5

2432

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

6

2437

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

7

2442

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

8

2447

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

9

2452

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

10

2457

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

11

2462

20

17

14

14

14

14

14

14

14

14

14

14

20

17

14

14

14

14

14

14

20

17

12

2467

-

-

14

14

14

14

14

14

14

14

14

14

-

-

14

14

14

14

14

14

-

-

13

2472

-

-

14

14

14

14

14

14

14

14

14

14

-

-

14

14

14

14

14

14

-

-

14

2484

-

-

-

-

-

-

-

-

14

-

-

-

-

-

14

-

14

-

-

-

-

-


IEEE 802.11a (5-GHz Band)

When shipped from the factory, the AIR-AP1131AG-x-K9 (dual radio) access points support the channels and maximum power levels listed in Table 3-3 for their regulatory domain.


Note Access points with FCC Certification Number (LDK102054) do not support dynamic frequency selection (DFS) on channels 100 to 140 in the US, Canada, and the Philippines. The FCC Certification Number (also called FCC ID number) is shown on the product label on the bottom of the unit. Only access points with LDK102054E on the product label and running the 4.1.170.0 software release can support DFS in the US, Canada, and the Philippines.


.

Table 3-3 Channels and Maximum Conducted Power for IEEE 802.11a Radio with 4.5-dBI Integrated Antenna 

Channel ID
Center Freq
(MHz)
Maximum Conducted Power Levels (dBm) in the Regulatory Domains
-A
-C
-E
-I
-J
-K
-N
-P
-Q
-U
-S
-T
5150 to 5250 MHz

34

5170

-

-

-

-

15

-

-

-

-

-

-

-

36

5180

15

-

17

17

-

15

15

15

15

15

17

-

38

5190

-

-

-

-

15

-

-

-

-

-

-

-

40

5200

15

-

17

17

-

15

15

15

15

15

17

-

42

5210

-

-

-

-

15

-

-

-

-

-

-

-

44

5220

15

-

17

17

-

15

15

15

15

15

17

-

46

5230

-

-

-

-

15

-

-

-

-

-

-

-

48

5240

15

-

17

17

-

15

15

15

15

15

17

-

5250 to 5350 MHz

52

5260

17

-

171

171

-

171

171

151

151

-

141

-

56

5280

17

-

171

171

-

171

171

151

151

-

141

15

60

5300

17

-

171

171

-

171

171

151

151

-

141

15

64

5320

17

-

171

171

-

171

171

151

151

-

141

15

5450 to 5725 MHz

100

5500

171

-

171

-

-

171

-

-

171

-

-

171

104

5520

171

-

171

-

-

171

-

-

171

-

-

171

108

5540

171

-

171

-

-

171

-

-

171

-

-

171

112

5560

171

-

171

-

-

171

-

-

171

-

-

171

116

5580

171

-

171

-

-

171

-

-

171

-

-

171

120

5600

-

-

171

-

-

171

-

-

171

-

-

171

124

5620

-

-

171

-

-

171

-

-

171

-

-

171

128

5640

-

-

171

-

-

-

-

-

171

-

-

171

132

5660

171

-

171

-

-

-

-

-

171

-

-

171

136

5680

171

-

171

-

-

-

-

-

171

-

-

171

140

5700

171

-

171

-

-

-

-

-

171

-

-

171

5725 to 5850 MHz

149

5745

17

17

-

-

-

17

17

-

-

-

17

17

153

5765

17

17

-

-

-

17

17

-

-

-

17

17

157

5785

17

17

-

-

-

17

17

-

-

-

17

17

161

5805

17

17

-

-

-

17

17

-

-

-

17

17

165

5825

-

-

-

-

-

-

-

-

-

-

-

-

1 Frequencies require DFS (Uniform spreading not required for the -P regulatory domain).


Special Country Restrictions

Table 3-4 lists special restrictions for wireless operation in some countries.

Table 3-4 Special Country Restrictions for Wireless Operation

Country
Frequency Band (GHz)
Regulatory Domain
Special Limitation and Restrictions

Mexico

2.4

-N

End user must limit 2.4 GHz operation to 2450 to 2483.5 MHz and 36 dBm EIRP1 .

Russian Federation

5

-E

End user must limit 5 GHz operation to 5650 to 5725 MHz.

United States

5

-A

Operation limited to indoor use only from 5150-5250 MHz.

1 EIRP (dBm) = maximum output power (dBm) + antenna gain (dBi)


Changing the Lightweight Access Point Output Power

This section provides instructions for changing the 1130AG series access point output power to comply with the maximum power limits imposed by special regulatory and country restrictions (see the "Special Country Restrictions" section). Follow these instructions to change the output power settings using a controller and your browser:


Note Administrator privileges may be required in order to change access point settings.



Note Regulatory domains are set at the factory and cannot be changed by the user.



Caution To meet regulatory restrictions, the access point and the external antenna must be professionally installed. The network administration or other IT professional responsible for installing and configuring the unit is a suitable professional installer. Following installation, access to the unit should be password protected by the network administrator to maintain regulatory compliance.

The output power on the access points can be changed only using a Cisco wireless LAN controller (2600 series or 4400 series), the controllers on a Cisco Wireless Services Module (WiSM), or using Cisco Wireless Control System (WCS).


Note See the Cisco Wireless LAN Controller Configuration Guide for more details on how to to configure your access point using the web-browser interface.


Follow these steps to change the access point's output power to meet local regulations using a controller:


Step 1 Open your Internet browser. You must use Microsoft Internet Explorer 6.0.2800 or a later release.

Step 2 Enter https://IP address (where IP address is the controller's IP address) in the browser address line and press Enter. A user login screen appears.

Step 3 Enter the username and password and press Enter. The controller's summary page appears.


Note The username and password are case-sensitive.


Step 4 Click Wireless > 802.11a Radios or 802.11b/g Radios and a list of associated access points displays.

Step 5 Choose the desired access point from the displayed list and click Configure. The radio settings page displays.

Step 6 Scroll down to the Tx Power Level Assignment field, and click Custom.

Custom indicates that the radio output power is manually controlled by the Tx Power Configuration setting field.

Step 7 In the Tx Power Level field, select the appropriate power level setting (1 to 8).

Based on the operating channel, the regulatory domain, and the controller power level setting (1 to 8), the actual transmit power at the access point can be reduced to comply with special regulatory or country restrictions.

Table 3-5 lists the controller power settings and the corresponding output power levels for these two examples:

2.4 GHz (802.11b/g) operation:

American regulatory domain and channel 2 using 11 Mbps data rates

5 GHz (802.11a) operation:

American regulatory domain and channel 149 using 36 Mbps data rates

Table 3-5 Example of Output Power Levels

Controller
Tx Power Settings1
Radio Output Power
802.11b/g (dBm)
802.11a (dBm)

1 (maximum)

202

173

2

17

14

3

14

11

4

11

8

5

8

5

6

5

2

7

2

-1

8

-1

-

1 The Tx Power Level setting of 1 represents the maximum conducted power setting for the access point. Each subsequent controller power level (such as 2, 3, 4, etc) represents approximately a 3-dBm reduction in transmit power from the previous power level.

2 The maximum output power level obtained from Table 3-2.

3 The maximum output power level obtained from Table 3-3.


Step 8 Click Apply.

Step 9 Close your Internet browser.


For additional configuration information, refer to the Cisco Wireless LAN Controller Configuration Guide.