Cisco Cisco 2106 Wireless LAN Controller

This section describes information about new hardware and software features, and operational notes for 
release 4.1.192.35M.

Release 4.1.192.35M provides extended wireless mesh features beyond those offered in the main Cisco 
Unified Wireless Network (CUWN) release base. Mesh-specific features are currently only available in 
the mesh release series.

The latest 1520 series access point, 1524, includes three radios: a 2.4-GHz, a 5.8-GHz, and a 4.9-GHz 
radio. The 2.4-GHz radio is for client access (non-public safety traffic) and the 4.9-GHz radio is for 
public safety client access traffic only. The 5.8-GHz radio is used as the backhaul for both public safety 
and non-public safety traffic.

The 4.9-GHz and 5.8-GHz radios are 802.11a sub-band radios which support a subset of specific 802.11a 
channels and include a sub-band specific filter designed to lessen interference from other 11a sub-band 
radios within the same access point. The 4.9-GHz sub-band radio on the 1524 access point supports 
public safety channels within the 5-MHz (channels 1 to 10), 10-MHz (channels 11-19), and 20-MHz 
(channels 20-26) bandwidths.

The following data rates are supported within the 5 MHz bandwidth: 1.5, 2.25, 3, 4.5, 6, 9, 12, 
and13.5 Mb/s. Default rate is 6 Mb/s.

The following data rates are supported within the 10 MHz bandwidth: 3, 4.5, 6, 9, 12, 18, 24, and 
27Mb/s. Default rate is 12 Mb/s.

Those 1522 mesh access points with serial numbers prior to FTX1150XXXX do not support 5 and 
10 MHz channels on the 4.9-GHz radio; however, a 20-MHz channel is supported.

Those 1522 mesh access points with serial numbers after FTX1150XXXX support 5, 10 and 20 
MHz channels.

For public safety only deployments, 1522s and 1524s must each be connected to its own separate 
RAP-based tree. For such deployments, 1522s must use the 4.9-GHz backhaul and 1524s must be in their 
own RAP tree(s) and use the 5.8-GHz backhaul.

Universal access, which allows client access over the 5.8-GHz backhaul radio, is not supported on the 
1524; however, it is supported on the 1522 and indoor mesh access points (1130, 1240). For more details 
on Universal Access see the

.