User's Guide

April 4, 2019
USER GUIDE: UBS-200L LF DESKTOP READER
41
Chapter 4 Tips and Tricks for Optimum Performance | Unified Information Devices
001.006.03 v1.3
COM
Port
Incorrect
Ensure correct COM port is selected. See Determining COM Port number
using “Device Manager”.
Incorrect
Baud
Rate
1. Ensure correct Baud Rate is selected.
2. Test all Baud Rates. See Advanced-Level Adjustable Settings for
available Baud Rates.
Other
COM
Settings
Incorrect
Ensure all remaining serial port settings are correct. See
Default Host Serial Port Settings.
COM
Port not
open, or
improper
ly closed
during
previous
session.
1. Close any open connections to COM port.
2. Unplug and re-plug USB Cable.
3. Double-check assigned COM port. See Determining COM Port number
using “Device Manager”.
4. Re-attempt communications.
Double-
Characte
rs
returned
over
COM
port.
Echo is
on
Turn Echo parameter off. See
Echo “EC X”.