To select software flow control
1. Ensure that the host device is in command mode.
2. Enter Command
#6140
to disable flow control, Command
#6141
to enable software flow control
(factory default) and press ENTER.
Fine-Tuning and Verifying the Read Zone
If the read zone is too wide or too deep for your application, it can be fine-tuned by physically adjusting
the external antenna mounting orientation, reprogramming the actual RF power output (
#644NN
Set RF
Attenuation), and/or reprogramming the RF sensitivity range (
#643NN
Set ATA Operating Range (Distance)
and
#645NN
Set SeGo Protocol Tag Operating Range). The combination of these adjustments allows you
to confine the read zone to the area where tagged vehicles pass.
Refer to sections
“643NN Select ATA Operating Range (Distance)” on page 5–76
Protocol Operating Range (Distance)” on page 5–77
“644NN Set RF Attenuation” on page 5–77
for
more information.
Note:
As described in “Marking the Read Zone” on page 4–14, marking the read pattern using test
tags that are hand-carried by a tester gives a general idea of the read pattern but the pattern may
vary somewhat when actual rail assets are read.
Physically Orienting the MPRX Antenna(s)
You can manually adjust the location of the read zone by loosening the antenna(s) mounting hardware and
pointing the antenna in the desired direction. The unit should be aligned to point directly at the tag as it
enters the desired read zone.
Fine-Tuning the Read Zone by Lowering Output Power
You can make the read zone smaller by adjusting the MPRX RF power output from a maximum of 2 watts
to a minimum of 200 milliwatts using Command
#644NN
Set RF Attenuation.
To adjust the read zone by lowering output power
1. Ensure that your PC is communicating with the MPRX using a terminal emulation program as
“Verifying Communications” on page 6–88
.
Caution
Test tags should be compatible with your MPRX. Test tags can be AAR-formatted or SeGo-
protocol tags.
2. Enter Command
#01
to switch to command mode. You are prompted with
#DONE
from the reader
and can now enter reader commands.
3. Enter in Command
#64401
to lower the RF power by 1 dB below 2 watts (default). Press
ENTER
.
Note:
In the Command
#644NN
, NN can be any hexadecimal 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 0 dB attenuation to a minimum power level of 200 milliwatts at 10 dB
attenuation. Increasing the attenuation lowers the output RF power.
4. Switch to data mode by entering Command
#00
and pressing
ENTER
.
Chapter 6 Configuration
TransCore Proprietary
6–97
Содержание MPRX 10-7200-001
Страница 137: ......
