Configuration
32
Enable 2X Mode
The Harmony 802.11a Access Point supports
2X
TM
mode, a high-speed operating mode
that can provide data rates of up to 108 Mbps, twice the speed of standard 802.11a
devices. By default, 2X mode is disabled.
Note:
Products sold in Europe, Japan, and Singapore do not support 2X mode.
When 2X mode is disabled, the Access Point complies with the IEEE 802.11a standard
and can achieve speeds of up to 54 Mbps.
When 2X mode is enabled, the Access Point does not comply with the IEEE 802.11a
standard but can achieve speeds of up to 108 Mbps.
You must configure all devices in the same network to use 2X mode. A device in 2X
mode cannot communicate with a device in 802.11a mode.
Note:
Enabling 2X mode will limit the number of independent Channels that the
Access Point can use. See “Channel” below for details.
Channel
802.11a devices spread a radio signal over a range of frequencies. The IEEE 802.11a
specification allocates the available frequencies in the 5 GHz band into a series of
operating Channels that are identified by a Channel number and a center carrier
frequency. 802.11a devices on the network that are configured for Infrastructure
mode will receive a Channel assignment from the Access Point.
Note:
You cannot manually configure the Channel parameter for Access Points
sold in Europe. These Access Points dynamically select a Channel.
Access Points that share the same Channel should be installed as far away from each
other as possible to reduce potential interference. Also, if Access Points in 802.11a
mode are co-located with Access Points in 2X mode, you must manually configure the
Channel assignments to minimize potential interference. For example, if a Model
8570 Access Point in 2X mode is using Channel 50, do not configure nearby Model
8570 Access Points in 802.11a mode for Channel 42, 48, 52, or 56.
The number of available Channels for a Harmony 802.11a Access Point varies by
model number and region.
For United States and Canada:
The Harmony 802.11a Access Point Models 8569 and 8570 can use one of eight
Channels when in 802.11a-compliant mode: Channel 36 (5.18 GHz), Channel 40
(5.20 GHz), Channel 44 (5.22 GHz), Channel 48 (5.24 GHz), Channel 52 (5.26 GHz),
Channel 56 (5.28 GHz), Channel 60 (5.30 GHz), or Channel 64 (5.32 GHz). These
Access Point models can use one of three Channels when in 2X mode: Channel 42
(5.21 GHz), Channel 50 (5.25 GHz), or Channel 58 (5.29 GHz).
The Model 8571 Access Point can use one of three Channels when in
802.11a-compliant mode: Channel 56 (5.28 GHz), Channel 60 (5.30 GHz), or Channel
64 (5.32 GHz). This Access Point model can use only one Channel in 2X mode:
Channel 58 (5.29 GHz).
