Customer manual
LFM 4x Reader
RFID
WE GENERATE SOLUTIONS
HERMOS AG
Gartenstraße 19 • 95490 Mistelgau
Phone: +49 9279 991 - 0
LFM 4x Reader Rev1.4
18
6.3.2 Front view
1.
Power supply connection
2.
Status- and power LEDs
3.
DIP-switch
4.
Ethernet interface
5.
RS232 interface
Component
Description
Power supply
connection
Three-pin socket for the connection of the 24V DC power supply.
Power-LED
The power LED indicates that the operating voltage is present and
the rea- ding device is ready for operation.
Status-LEDs
The two status LEDs are used for the reading and writing feedback in
test and polling mode. If the device is in test mode, the red status
LED flashes at about 1 Hz. The yellow status LED then indicates the
status of the test mode. If the read or write process was
unsuccessful, the yellow LED flas- hes at the read or write frequency.
If the read or write process is successful, the yellow LED remains
permanently lit.
In normal operation, if an error occurs, the display of this
occurs via the red LED:
Red LED constantly on: read error (no tag)
red LED flashing rapidly: antenna error (tuning, cable
break). This display will reset automatically with the next
valid reading.
After a restart, a short self-test of the LEDs, then display of the
protocol: SECS: The red LED goes on briefly
ASCII: The yellow LED goes on briefly
DIP-switch
DIP-switch 4 starts an automatic antenna
tuning. DIP-switch 3 activates a test
mode.
DIP-switch 1 and 2 serve the antenna selection.
Ethernet interface
The reading device features an Ethernet interface depending on the
de- vice model. The communication with the device can be carried
out via the 10/100 BaseT interface.
RS232 interface
Depending on the device model, the reading device features a RS232
in- terface. The communication with the device can be carried out via
the serial interface (9-pin Sub D)
