CISCO AIRONET 1200/1210/1220/1230/1231 RADIO UPGRADE MODULE AIR-RM21A-A-K9 802.11a 5GHz 54Mbps

Cisco Aironet IEEE 802.11a Cardbus Radio Module provide an easy, cost-effective means to increase the capacity of your wireless network with a simple radio upgrade. An Allen wrench, supplied with the upgrade kit, is all you need to access the CardBus slot to upgrade a Cisco Aironet 1200 Series access point. Simply remove the existing 802.11a radio or remove the slot cover, and insert the new 802.11a module and upgrade the access point's IOS image. The access point does not need to be removed from the installed position and the installer does not need to be grounded while performing the upgrade. No other steps are required.

Condition:

Used in nearby university. Like new condition.

Feature:

5 dBi omnidirectional and 9 dBi patch antennas
19 nonoverlapping channels in the 5 GHz band
Dimensions: 4.7 x 3.4 x 5.7 (L x W x H - antenna up)
Requires IOS 12.3(4)JA or later
Supports AES Encryption

Wireless Specifications:

Wireless Technology: Wi-Fi - IEEE 802.11a
Antenna: Integrated
Antenna Range: 170 ft@ 54Mbps Outdoors
Antenna Range: 950 ft@ 6Mbps Outdoors
Antenna Range: 500 ft@ 6Mbps Indoors
Antenna Range: 90 ft@ 54Mbps Indoors
Frequency Band/Bandwidth: 5.15 GHz to 5.35 GHz IEEE 802.11a FCC
Frequency Band/Bandwidth: 5.72 GHz to 5.82 GHz IEEE 802.11a FCC
Access Method: CSMA/CA
Channels: 12 Channel Operating FCC
Channels: 12 Channel Non-overlapping FCC
Transmission Speed: 54Mbps
Transmission Speed Details: 54Mbps Auto-fallback IEEE 802.11a
Transmission Speed Details: 6Mbps IEEE 802.11a
Time Delay: 360 ns @ 6Mbps
Time Delay: 120 ns @ 54Mbps
Transmit Power: 17 dBm Maximum
Receiver Sensitivity: -87 dBm Typical @ 6Mbps
Receiver Sensitivity: -72 dBm Typical @ 54Mbps

Compatible Cisco Access Points:

Cisco Aironet 1200
Cisco Aironet 1210
Cisco Aironet 1220
Cisco Aironet 1230
Cisco Aironet 1231