WIT2450
©
2000- 2005 Cirronet
™
Inc
23
M-2450-0000 Rev B
radio’s buffer, the receiving radio will begin acknowledging transmissions from the
transmitting radio allowing the transmitting radio’s buffer to begin to empty which will
cause the transmitting radio to reassert CTS. Either one or both of the radios in a point-
to-point installation can be configured for the RF flow control. If this mode is invoked in
a point-to-multipoint installation, communications with all radios will be stopped when
any one radio’s receive buffer becomes full.
2.3.4. Co-Existing with 802.11b Networks
In some cases, if a WIT2450-based network is located in close proximity to an 802.11b
network, the WIT2450-based network can interfere with the 802.11b network. To avoid
causing this interference, the WIT2450 radio supports a selection of hopping patterns that
avoid the various 802.11b direct sequence channels. These limited band hopping patterns
allow WIT2450-based networks to be used with 802.11b networks without impacting the
performance of the 802.11b networks. The hopping pattern is selected using the
pe
command. Please refer to the section 5.3
Protocol Commands
for details.
2.3.5. European Union Settings
When operating the WIT2450 in France, a limited frequency mode must be selected. The
Pe6
value avoids 802.11b bands 11 & 12 is compliant with the French regulatory
standards of 2400-2450MHz. To select the limited frequency band for operation in
France, at the > configuration mode prompt enter:
pe6<CR>
Save this setting by typing:
m><CR>
The limited frequency operation will take effect immediately and will be saved into
memory for use when power is cycled.
Use of the WIT2450 within the European Union is limited to a maximum transmit power
including antenna gain of 20dBm. If gain antennas are to be used, the low power setting
of the WIT2450 must be selected using the
wp
command (See Section 5.2 Network
Commands). With the low power setting of 10dBm at the antenna connector, a maximum
of 10dB of antenna gain may be used. With the mid power setting of 18dBm, a
maximum of 2dB of antenna gain may be used. To select low power mode, at the >
configuration mode prompt enter:
wp0<CR>
To select mid power mode, at the > configuration mode prompt enter:
wp1<CR>
To save this parameter in non-volatile memory type:
m>
