User's Manual

Table Of Contents
106
Channel and Subchannel
The Channel represents the frequency hopping pattern used by the Master
device. The Subchannel provides a logical subdivision between Channels.
These parameters are only valid for an active Master device. Do not change
these parameters unless directed to do so by Technical Support.
MAC Optimize
This parameter accounts for the number of radios that are communicating on
the Symphony network. By default, this parameter is set to Light in order to
maximize throughput and reduce overhead. However, if you have 9 to 10
Symphony devices on the same Symphony network, you may see improved
communication by changing this parameter to Normal. However, Proxim
does not recommend that you change this parameter unless you are directed
to do so by Technical Support.
Inactivity Timeout
This parameter is only visible for the Symphony PC Card. It controls when a
Symphony PC Card will enter a low-power doze mode in order to conserve
battery life. The Inactivity Minutes and Inactivity Seconds parameters are
added together to arrive at the Inactivity Timeout period. After the specified
period of inactivity has elapsed, the Symphony PC Card will enter the doze
mode and draw a minimal amount of power from the computer. The card will
awaken from doze mode to receive a message directed to it or to send a
message to another Symphony device.
Setting both Inactivity Seconds and Inactivity Minutes to 0 will prohibit the
Symphony PC Card from entering the doze mode. Note that disabling the
doze mode will decrease the computer’s battery life. If you intend to disable
the doze mode, you may want to use the computer with AC power.
Note:
The Symphony PC Card will not emerge from doze mode in
response to a broadcast packet. In general, this is not a problem
because communication will typically be initiated from the
mobile computer. However, if you need the device to respond to
broadcast packets all of the time, you may disable the Inactivity
Timeout parameter, as described above. Alternatively, ad-
vanced users may configure a static entry for the Symphony PC
Card in other computers’ ARP table.