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Chapter 1
Overview
AP1542I Internal Omni Antenna
The AP1542I model has an internal omnidirectional antenna. The AP1542I access point 802.11b/g/n
radio is used primarily for local access and its 802.11a/n/ac radio for wireless backhaul in the Mesh.
The 2.4 GHz b/g/n radio operates in 2.4 GHz ISM band. It has two transmitters with a maximum total
output power of 29 dBm for 802.11b/g/n operation. Output power is configurable for 8 levels in 3 dB
steps. It has two receivers which enable maximum-ratio combining (MRC).
The 5 GHz a/n radio operates in the UNII-1 band (5.15-5.25 GHz), UNII-2 band (5.25 - 5.35 GHz),
UNII-2 Extended/ETSI band (5.47 - 5.725 GHz), and the upper ISM band (5.725 - 5.850 GHz). It has
two transmitters with a maximum total output power of 29 dBm depending on the regulatory domain. Tx
power settings will change depending on the regulatory domain. Output power is configurable in 3 dB
steps. It has two receivers which enable maximum-ratio combining (MRC).
The AP1542I model access point is equipped with the following integrated antennas:
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AP1542D Internal Directional Antenna
The AP1542D access point 802.11b/g/n radio is used primarily for local access and its 802.11a/n/ac
radio for wireless backhaul in the Mesh.
The 2.4 GHz b/g/n radio operates in 2.4 GHz ISM band. It has two transmitters with a maximum total
output power of 27 dBm for 802.11b/g/n operation. Output power is configurable for 8 levels in 3 dB
steps. It has two receivers which enable maximum-ratio combining (MRC).
The 5 GHz a/n radio operates in the UNII-1 band (5.15-5.25 GHz), UNII-2 band (5.25 - 5.35 GHz),
UNII-2 Extended/ETSI band (5.47 - 5.725 GHz), and the upper ISM band (5.725 - 5.850 GHz). It has
two transmitters with a maximum total output power of 27 dBm depending on the regulatory domain. Tx
power settings will change depending on the regulatory domain. Output power is configurable in 3 dB
steps. It has two receivers which enable maximum-ratio combining (MRC).
The AP1542D model access point is equipped with the following integrated antennas:
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•
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2 single band 2.4 GHz antennas with 5 dBi gain for WiFi operation.
2 single band 5 GHz antennas with 5 dBi gain for WiFi operation.
1 single band 2.4 GHz antenna with 3 dBi gain for BLE operation.
2 single band 2.4 GHz antennas with 8 dBi gain for WiFi operation.
2 single band 5 GHz antennas with 9 dBi gain for WiFi operation.
1 single band 2.4 GHz antenna with 3 dBi gain for BLE operation.
Cisco Aironet 1540 Series Outdoor Access Point Hardware Installation Guide
Hardware Features
1-5
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