User's Manual

RS232-Transponder Reader
(SECS1-Protocol), Release 0.3 Draft Page 13 of 91
2000-09-29
ID: ID000093
Power - LED:
If the device is connected to a power supply, the LED lights green and the reader is
ready for use.
Tuning / LED:
The antenna’s efficiency is optimized by pushing the automatic calibration key. The
LED lights up red during the calibration process and subsequently goes out when
the tuning had been successful. If a fault occurs, then the LED flashes as long as a
calibration initialized again had proceeded positively.
Possible faults could be a defect antenna or a strong metallic surrounding at the
antenna.
Antenna - LED:
If the antenna sends HF-signals (for example for loading a transponder or for
sending data), the LED is activated for this period.
Input - LED:
The input-LED signalizes a triggering of the external sensor respectively the
actuating of an external potential-free contact.
Output - LED:
If the external output is set, the LED lights; otherwise is does not light.
For a detailed description please see 3.9
RXT - und TXT - LED:
When data are transmitted via the RS232-interface the corresponding transmit- or
receive-LED lights.
TXT-LED (transmit) : Data are transmitted from the reader to the terminal. R ? T
RXT-LED (receive) : Data from the terminal are received in the reader. R ? T