User's Guide
USER GUIDE: UBS-200L LF DESKTOP READER
April 4, 2019
Unified Information Devices | Chapter 3 – Operating and Configuring the UBS-200L
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Time-Show Code “TSC”
With both “CID” and “CN” set to 1 in “MD0” continuous read mode, it may be desirable to allow a
transponder to be re-read after a certain amount of time, in case the transponder data was missed by
the host. The “TSC” command allows the re-transmission of the same transponder ID if the transponder
remains in the field or re-enters the field after a given delay. Send the “TSC” command, followed by a
parameter value to set this time delay. The parameter value can be any value from 0 to 63, and is
multiplied by 100 ms to determine the actual duration of the delay. i.e. “TSC 50” sets the time-out to
5,000 ms, or 5 seconds.
Sending the command “TSC 0” will completely prevent the transponder ID from being sent again, until
another transponder is presented.
Baud Rate “BD X”
The BD command sets the baud rate at which the internal LF Module communicates with the UBS-200L.
Changing this baud rate requires that the “UID LFBD” also be set to match. By default, the LF Module is
set to communicate at the highest speed possible. Reducing this baud rate is useful only if data is
coming in too quickly from the LF module. Available baud rates and their associated values are
summarized in