User Manual

Medio S004 EVM
Table 3: Component Descriptions
Connector/Component Description
Medio S004 RFID Reader
Power Supply
Connector
To plug the power supply to the EVM power connector.
USB Connector To connect the USB cable and the other end to the host PC.
RX and TX USB LED
RX led flashes orange when the host is sending commands to the EVM
TX led flashes green when the reader is sending data to the host
Serial Selector
This jumper selects the Synchronous / Asynchronous mode.
Synchronous Mode Asynchronous Mode
The jumper must be positioned before plugging in the power and USB
cables. To change the serial communication mode, you must unplug the
power and USB cables, change the jumper setting, and reconnect the
power and USB cables. The green communication mode LED is on
when synchronous serial mode is selected.
Push Button for input When pushed provides +5V on the IN pin.
Output LED This LED is ON (yellow) when +5V is present on the OUT pin.
Molex Cable To connect the reader signals from the EVM to the S004 reader.
MCB Coaxial Cable To connect the reader to its antenna
Monitoring Connector
This is used solely for monitoring the reader signals. See the Medio
S004 Integrator’s Guide for more information.
SMA Connector
External Antenna connector can be used to connect other antennas. (Be
sure to connect the antenna cable from the S004 RF coaxial connector
to the coaxial that is next to the SMA connector.) Carefully unplug the
RF Coaxial cable for the EVM antenna and connect it to the SMA
antenna receptacle near the SMA connector.
A-VSA
The built-in antenna has a RF coaxial connector which (when used) must
be connected to the S004 RF coaxial connector.
October 2006 Revision 1.1 15/33