Table Of Contents

Cisco Aironet 1300 Series Access Point/Bridge

Channels

IEEE 802.11b/g (2.4-GHz Band)

Maximum Power Levels and Antenna Gains

IEEE 802.11b/g (2.4-GHz Band)

Changing the Autonomous Access Point/Bridge Output Power

Cisco Aironet 1300 Series Access Point/Bridge

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This chapter lists the autonomous access point/bridge (model: AIR-BR1310G) IEEE 802.11b/g 2.4-GHz channels, maximum power levels, and antenna gains supported by the world's regulatory domains.

For additional product hardware information refer to the Cisco Aironet 1300 Series Outdoor Access Point/Bridge Hardware Installation Guide.

The following topics are covered in this chapter:

•Channels

•Maximum Power Levels and Antenna Gains

•Changing the Autonomous Access Point/Bridge Output Power

Channels

IEEE 802.11b/g (2.4-GHz Band)

The channel identifiers, channel center frequencies, and regulatory domains of each IEEE 802.11b/g 22-MHz-wide channel are shown in Table 6-1.

Table 6-1 Channels for IEEE 802.11b/g

Channel Identifier	Center Frequency (MHz)	Regulatory Domains
		Americas (-A)		EMEA (-E)		Japan (-J)
		CCK	OFDM	CCK	OFDM	CCK	OFDM
1	2412	X	X	X	X	X	X
2	2417	X	X	X	X	X	X
3	2422	X	X	X	X	X	X
4	2427	X	X	X	X	X	X
5	2432	X	X	X	X	X	X
6	2437	X	X	X	X	X	X
7	2442	X	X	X	X	X	X
8	2447	X	X	X	X	X	X
9	2452	X	X	X	X	X	X
10	2457	X	X	X	X	X	X
11	2462	X	X	X	X	X	X
12	2467	-	-	X	X	X	X
13	2472	-	-	X	X	X	X
14	2484	-	-	-	-	X	-

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Note Mexico is included in the Americas (-A) regulatory domain; however, channels 1 through 8 are for indoor use only while channels 9 through 11 can be used indoors and outdoors. Users are responsible for ensuring that the channel set configuration is in compliance with the regulatory standards of Mexico.

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Maximum Power Levels and Antenna Gains

IEEE 802.11b/g (2.4-GHz Band)

An improper combination of power level and antenna gain can result in equivalent isotropic radiated power (EIRP) above the amount allowed per regulatory domain. Table 6-2 indicates the IEEE 802.11b/g maximum power levels and antenna gains allowed for each regulatory domain.

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Note To meet regulatory restrictions, the external antenna bridge unit 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.

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Table 6-2 Maximum Power Levels Per Antenna Gain for IEEE 802.11b/g 

Regulatory Domain	Antenna Gain (dBi)	Maximum Power Level (mW)
		CCK	OFDM
Americas (-A) (4 W EIRP maximum)	2.2 (Omni)	100	30
	5.2 (Omni)	100	30
	9 (Patch)	100	30
	10 (Yagi)	100	30
	11 (Omni)	—	—
	12 (Omni)	100	30
	13 (Integrated patch)	100	30
	13.5 (Yagi)	100	30
	14 (Sector)	50	20
	21 (Dish)	20	10
EMEA (-E) (100 mW EIRP maximum)	2.2 (Omni)	50	30
	5.2 (Omni)	20	20
	9 (Patch)	10	10
	10 (Yagi)	10	10
	11 (Omni)	—	—
	12 (Omni)	5	5
	13 (Integrated patch)	5	5
	13.5 (Yagi)	5	5
	14 (Sector)	1	1
	21 (Dish)	11	11
Japan (-J) (10 mW/MHz EIRP maximum)	2.2 (Omni)	10	10
	5.2 (Omni)	10	10
	9 (Patch)	10	10
	10 (Yagi)	10	10
	11 (Omni)	10	10
	12 (Omni)	10	10
	13 (Integrated patch)	10	10
	13.5 (Yagi)	10	10
	14 (Sector)	10	10
	21 (Dish)	10	10

1 A minimum of 1 dBi cable loss must be be used for this configuration.

Changing the Autonomous Access Point/Bridge Output Power

This section provides instructions for changing the autonomous access point/bridge output power to comply with the maximum power limits imposed by regulatory domains (see the "Maximum Power Levels and Antenna Gains" section). Follow these instructions to change the output power settings using your browser:

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

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

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Note To meet regulatory restrictions, the external antenna access point/bridge unit 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.

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Step 1 Enter the access point/bridge IP address into your browser's address or location line and press Enter. An Enter Network Password screen appears.

Step 2 Enter your username (default Cisco) in the User Name field.

Step 3 Enter the access point/bridge password (default Cisco) in the Password field and press Enter. The Summary Status page appears.

Step 4 Click Network Interfaces and the network interface menu appears.

Step 5 Click Radio0-802.11G and the 802.11G Status screen appears.

Step 6 Click the Settings tab and the settings screen appears.

Based on the external antenna gain, the operating channel, and the regulatory domain, you might need to reduce the actual transmit power for the access point so that the specific country regulations are not exceeded (see the "Maximum Power Levels and Antenna Gains" section).

For example:

•EMEA (-E) regulatory domain

–Channel 2 operation

–5.2 dBi external antenna

–For 802.11b (CCK) data rates (see Table 6-2), the maximum transmit power level is 20 mW.

–For 802.11g (OFDM) data rates (see Table 6-2), the maximum transmit power level is 20 mW.

Step 7 Under CCK Transmit Power (mW), click the maximum CCK power allowed for your antenna in your regulatory region (see Table 6-2).

Step 8 Under OFDM Transmit Power (mW), click the maximum OFDM power allowed for your antenna in your regulatory region (see Table 6-2).

Step 9 Click Apply.

Step 10 Close your browser.

For additional configuration information, refer to the Cisco IOS Software Configuration Guide for Access Points.

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