User`s manual

Chapter 3 — Creating and Using RFID Applications
48 IF30 Fixed Reader User’s Manual
Unselect Tries
(Not supported by EPCglobal Class 1 Gen 2 tags) Sets the number of
times a group unselects is attempted. Valid range is 1 (default) to 254.
This setting is equivalent to the UNSELTRIES BRI attribute.
Initial Queue
(EPCglobal Class 1 Gen 2 tags only) Sets the initial Q parameter value
used by the Query command. Valid range is 0 to 15. The default is 4. If
you know there is only one tag in the field, set this attribute to 0 for
best performance.
This setting is equivalent to the INITIALQ BRI attribute.
Session
(EPCglobal Class 1 Gen 2 tags only) Sets the command session
parameter to the corresponding EPCglobal Class 1 Gen 2 air protocol
command (default is QueryAdjust).
This setting is equivalent to the SESSION BRI attribute. For more
information on this setting, see the EPCglobal Class 1 Gen 2
documentation.
Field Strength
Sets the RF power level (measured as a percentage of maximum
power) for all antennas. Valid range is 1 to 100 (default).
Use this setting to antennuate the antenna field strength. In some
situations, full output power can cause unnecessary interference. For
example, if the tag is close to the antenna, full output power might
overload the tag and cause unreliable behavior.
This setting is equivalent to the FIELDSTRENGTH BRI attribute.
Enable Antenna Port n
Enables or disables the antenna connected to antenna port n. Check
the check box to enable that antenna. Antenna Port 1 is enabled by
default.
If more than one antenna is enabled, the antennas always fire in
sequence numerically (1, 2, 3, 4). To change this sequence, you need to
set the ANTS BRI attribute. For more information, see the BRI
programmer’s reference manual.