User's Manual

Fortress ES-Series CLI Guide: Networking and Radio Configuration
53
CAUTION: Radios
using DFS chan-
nels (Section 3.4.8)
must
use the default 100 ms
BeaconInterval .
The Fortress BeaconInterval default of 100 milliseconds is
optimal for almost all network deployments and recommended
for bridging operation. Configure the interval in milliseconds
between
25 and 1000—only when necessary (as required by
an unusual network deployment) and only on radios using non-
DFS channels
.
The NoiseImmunity setting allows 802.11a radios to
compensate for unusual local interference by aggressively
lowering the receive threshold for connected nodes. Noise
Immunity is
disabled by default, and Fortress recommends
retaining this default unless operating conditions require a
change.
3.4.4 Network Type, Antenna Gain, Tx Power
NOTE: Antenna
port labels corre-
sponds to radio num-
bering: Radio 1 uses
ANT1, and so on.
NetworkType
and AntennaGain values are used to calculate
allowable
TransmitPower values and are therefore also subject
to regulatory requirements. Consult applicable rules for the
regulatory domain in which the radio is operating to determine
permitted settings.
The
TransmitPower setting can automatically determine the
appropriate power setting based on country of operation and
other factors using
auto (the default), or you can manually set
the transmit power to a value between 1-33 dBm. In order to
comply with relevant rules and regulations, you must configure
the Mesh Point with values that accurately reflect its hardware
configuration and conform to the applicable
TransmitPower
limit for the Mesh Point’s current regulatory domain. Consult
your local regulatory authority for applicable specifications and
requirements for radio devices and transmissions.
The Mesh Point permits you to select
TransmitPower settings
that exceed those allowed by your current configuration, but a
warning will signal the error. Do not exceed the TxPower limit
for the Mesh Point’s current configuration and regulatory
domain.
3.4.5 MIMO
CAUTION: It is
important to install
both antennas for a
MIMO-enabled radio, or
the radio will not func-
tion.
Only the ES2440 can be equipped with radios that support
Multiple-Input Multiple-Output (MIMO) wireless operation. Both
standard-equipment 802.11a/g/n and 802.11a/n radios support
MIMO, and MIMO support is optionally available in ES2440s
equipped with 4.4 GHz radios.
You can quickly determine whether the 4.4 GHz radios installed
in the ES2440 support MIMO by observing the number of
antenna ports per radio on the chassis back panel. MIMO-
capable radios are equipped with two antenna ports. MIMO
support is additionally indicated by the final "m" in these
platform’s full model numbers: ES2440-34m, ES2440-3444m.