CR-SEH
network
The radio in the CR-SEH 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 CR-SEH 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 CR-SEH has 64 different network numbers (hopping patterns) allowing multiple
networks of CR-SEHs to be co-located while keep the networks segregated. In some
situations, particularly in outdoor deployments, there may be other entities using CR-
SEHs. 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 CR-SEHs are setup to connect to the first master they hear. While they can link
with a CR-SEH with any network number, they cannot link with a CR-SEH with the
wrong
spid
.
2000- 2004 Cirronet
Inc
26
M-2411-0013 Rev A
