Specifications

4-6
Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide
OL-11321-08
Chapter 4 Cisco Aironet 1140 Series Lightweight Access Points
Channels and Maximum Power Levels
5 GHz Band (IEEE 802.11n Draft 2.0)
Tables 4-6 through 4-14 show show 5-GHz a/n radio maximum power levels for the -A (America), -E
(ETSI), -C (China), -P (Japan), -I (Israel), -K (South Korea), -N (Non-FCC), -S (Singapore), and -T
(Taiwan) regulatory domains.
Ta b l e 4-5 802.11 a/n 5-GHz Maximum Transmit Power
IEEE Standards TX Power Out
(dBm)
Antenna & Transmitter Operation
802.11 BW
(MHz)
IEEE Data Rates Notes Tx1+Tx2=Total Notes
A 20 non HT-20 6 to 54 Mbps Legacy, OFDM
Modes
17 + 17 = 20 Dual Antennas—Both transmitters on
simultaneously using CSC of 50 ns.
N 20 HT-20 MCS0 to 15 MIMO Modes 17 + 17 = 20 Dual Antennas—Both transmitters on
simultaneously using CSC of 400 ns.
N 40 HT-40 MCS0 to 15 MIMO Modes 17 + 17 = 20 Dual Antennas—Both transmitters on
simultaneously using CSC of 400 ns.
N 40 non HT-40
(duplicate)
6 to 54 Mbps Duplicate Mode 17 + 17 = 20 Dual Antennas—Both transmitters on
simultaneously using CSC of 50 ns.
N 20 Beamforming
(legacy
clients)
6 to 54 Mbps Legacy, OFDM
Beamforming
Modes
17 + 17 = 20 Dual Antennas—Both transmitters on
simultaneously using phase adjustment
for beamforming.