Psion Teklogix 9160 G2 User Manual page 262

Chapter 22: The 9160 G2 As Base Station
RRM Groups Configuration Settings
Size of Poll Windows
This textbox allows the user to specify the size of the poll windows in which the RRMs of
this RRM group listen for mobile computer replies. The allowable values range from 5 to
32. The default value is 8.
Maximum Message Segment Size
This textbox allows the user to specify the size of the largest message segment, in bytes, that
will be sent over the Psion Teklogix radio network. Larger messages are broken into parts.
The allowable values range from 32 to 116. The default value is 100.
Number of Retries
This textbox allows the user to specify the number of times the RRM retransmits a message
to a mobile computer, after receiving no acknowledgement from the mobile computer,
before it declares the mobile computer offline. The allowable values range from 1 to 7. The
default value is 3.
Collision Size
This textbox allows the user to specify the smallest number of characters of noise received
by the RRM, that will be interpreted as interfering transmissions from Psion Teklogix equip-
ment. When this threshold is exceeded, the RRM starts collision resolution. The allowable
values range from 3 to 10. The default value is 6.
Free Window Factor
This textbox allows the user to specify the probability that the RRM will include a free
window in its poll, during which any mobile computer may transmit. The allowable values
range from 0 to 7. The default value is 0.
Message Mode Limit
This textbox allows the user to specify the probability of including a message-mode poll in
its poll transmission. The allowable values range from 0 to 7. The default value is 4.
Callsign Period
This textbox allows the user to specify the amount of time between transmissions of the call-
sign. This parameter is in minutes. A value of 0 (zero) indicates that no callsign is
transmitted. The allowable values range from 0 to 60. The default value is 0.
238 Psion Teklogix 9160 G2 Wireless Gateway User Manual