User's Manual

Library L100 Reader User's Guide
3.2.5 Serial Connector
The serial connector is used to communicate with an external environment. User commands and
data exchanges are transmitted through this port which can be set to RS-232, RS-485 or RS-422
mode by the software. Different baud rates can be defined for each mode.
The Default Mode is defined by the application software which is downloaded in the L-L100
Reader.
Tx (Transmit data) and Rx (Receive Data) LEDs indicate the activity of the serial port.
The RS-232 cable is a null modem cable.
Please refer to Embedded Application chapter for further information about Application
Software.
3.2.6 Monitoring Port (Parallel Port)
The monitoring port communicates directly with the Radio Processing Unit (RPU). When the
parallel cable is plugged in, the Data Processing Unit (DPU) is automatically deselected. The
parallel port can be used as a monitoring tool or as a means to upgrade the L-L100 Reader
firmware via the L200 Explorer.
The parallel cable uses pin-to-pin DB25 connectors. A shielded cable must be used to
prevent disruptions when antennas have a high output power.
Please refer to L-L100 Reader Architecture chapter for further information about the RPU
and DPU. Please refer to “L-L100 Reader Firmware Reference” for further information about
L-L100 Reader Firmware.
3.2.7 Antennas
The L-L100 Reader is primarily designed for use with Aero-LI, L-SA1 and L-SA2 antennas.
Nonetheless, it is also operational with other TAGSYS antennas, provided that the power applied
to the antenna does not exceed antenna specifications. For more information, refer to Section 6,
"Antennas".
L-L100 Reader performance has been characterized for a 3-meter long antenna cable.
Optimized operation is not guaranteed with a cable longer than three meters.
16/45 Revision 3.1b April 2003