Proxim RANGELAN2 7510, User Manual

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This option allows you to change the various wireless parameters.
Radio Port Administrative Status, when disabled, temporarily prohibits the Access
Point from sending or receiving any packets over its radio. This parameter is automati-
cally returned to Enabled when either the radio or the Access Point is reset. This param-
eter is primarily included for customer who intend to manage the Access Point using
SNMP. This parameter corresponds to the SNMP MIB-II Administrative status param-
eter and can be used to bring the radio interface back up after it has been disabled by an
SNMP manager.
In order for this system to work, in each subnetwork there must be one unit that coordi-
nates the hops. This unit has the Station Type setting of Master. It might help you to
think of the Master as the conductor of a frequency hopping orchestra. The Master
keeps time so all units know when to hop and what frequency to hop to.
Units classified as Stations synchronize to the Master and follow its signal to learn what
frequency in the pattern the Master is currently using.
There must be at least one station on the network designated the Master. For most
network operating systems, the RangeLAN2 Access Point should be the Master and all
clients are defined as Stations. In a roaming environment, all RangeLAN2 Access
Points will be configured as Masters. The RangeLAN2 7100, RangeLAN2 7400, and
RangeLAN2 792x clients are all configured as Stations and roam from one Master to
another.
Each Master can select one of 15 Channels to establish communications with Stations.
Each Channel number sets a unique frequency hopping sequence allowing for multiple
subnetworks with higher data rate transmission capability in the same air space. You
may think of the Channel as a pipe. In order to communicate, radios must be on the
same Channel and there must be one (and only one) Master that provides the timing for
that Channel.
There are 15 independent Channels. This means that there are 15 different sequences of
frequency hops. Each Channel is at a different frequency at a different time. For net-
works with multiple Masters (such as in a roaming environment), set each Master to a
different channel. All Stations will determine their channel by the Master to which they
are synchronized.