TransCore MPRX, System Manual

Page: 114 / 208

MPRX Reader
TransCore Proprietary 7–27
641 Select RF-by-Input Control (Factory Default)
Command
#641
configures the reader for RF-by-input control. The reader automatically
turns on RF when it detects a presence through sense0. The reader turns off RF
according to the selected RF control algorithm (
#692N
Select RF Control Algorithm).
Note: This command only has an effect when the reader is not in MPRX mode.
Reader response:
Done
643NN Select ATA Operating Range (Distance)
Command
#643NN
selects the read range for ATA tags where
NN
is a hexadecimal value
from 00 to 1F; the range increases with increasing
NN
value. The range can be adjusted for
32 discrete values where 00 is the shortest range and 1F is the longest range. The default
range value is 1F.
Reader response:
Done
644NN Set RF Attenuation
Command
#644NN
sets the attenuation control for the output RF power where NN is a
hexidecimal value from 00 to 0A. Settings for attenuation are 1.0 dB increments over
a range of 10 dB of attenuation from the maximum power setting of 2 watts at 0dB
attenuation to a minimum power level of 200 milliwatts at 10-dB attenuation.
The Set RF Attenuation command NN variables and corresponding attenuation settings
are shown in
Table 7 – 10.
Table 7 – 10 RF Attenuation Command Variables
Variable (NN) Attenuation Setting (dB)
00 0 (factory default)
01 1
02 2
03 3
04 4
05 5
06 6
07 7
08 8
09 9
0A 10