SEM2411
maxslaves
Sets a limit to the number of slaves SEMS that a master SEM can have registered
simultaneously. The default is 60 but the parameter can range from 1 to 60. If
more than
maxslaves
slave SEMs attempt to connect to the access point, they
will be denied access.
network
The radio in the SEM has 64 preprogrammed hopping patterns or network
numbers. By using different network numbers, nearby co-located networks can
avoid interfering with each other’s transmissions. Even if both networks tried to
use the same frequency, on the next hop they would be at different frequencies.
nwt
can range from 0 to 63.
power
This command sets the transmit output power level of the SEM radio. The default
is 1 which corresponds to +18dBm or 65 milliWatts. The other setting is 0 which
corresponds to +10dBm or 10 milliWatts. This command is useful in the
European Union where the transmit power is limited to +20dBm including
antenna gain. Setting the transmit power to +10dBm allows up to 10dBi of
antenna gain to be used.
show
This command displays a list of the current radio parameters including the
network number, maxremotes and the sys outmax value.
spid
The SEM has 64 different network numbers (hopping patterns) allowing multiple
networks of SEMs to be co-located while keep the networks segregated. In some
situations, particularly in outdoor deployments, there may be other entities using
SEMs. In most cases, the network number will be sufficient to keep the networks
separate. However, it may not be possible to coordinate network numbers with an
unknown third party. In this instance, the service provider ID or
spid
provides an
additional 255 codes to distinguish networks. This feature is particularly useful if
the slave SEMs are setup to connect to the first master they hear. While they can
link with a SEM with any network number, they cannot link with a SEM with the
wrong
spid
.
2000- 2004 Cirronet
Inc
31
M-2411-0007 Rev B
Summary of Contents for SEM2411 /SEM2411 X
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