Integrated Technical Vision Ltd.
http://www.itvsystems.com.ua
3
The Reader Operation
The RFID Card Code Reading
The card code reading is annunciated by built-in buzzer and LED lamp according to
interface type and annunciation mode (see Section «Data transfer and Annunciation»).
Repeated reading will be available after 0.75 sec if the card is removed from the reader
sensing area.
Hold Mode
Reader is turned to the hold mode while yellow wire is closed to ground. In this mode
reader does not read cards, thus current consumption decreases.
Do not apply voltage to yellow wire!
Data transfer and control of annunciation
The reader is provided with two-colour LED indicators and buzzer. LED and buzzer
function according to interface type programmed and annunciation mode.
Wiegand Interface
Engaging of LED and buzzer is possible automatically or by grounding of corresponding
wire according to Table 2.
Table 2. Annunciation mode:
Data transmissions from reader comply with standard Wiegand26, Wiegand37,
Wiegand42 and Wiegand auto.
Buzzer
Red LED
Green LED
00
Beep on card read
LED normally on, switch off at reading
Blinking at reading
01
Control from outside
LED normally on, switch off at reading
Blinking at reading
02
Beep on card read
Switch off
Blinking at reading
03
Control from outside
Switch off
Blinking at reading
04
Beep on card read
LED normally on, switch off at reading
Control from host
05
Control from outside
LED normally on, switch off at reading
Control from host
06
Beep on card read
Control from host
Control from host
07
Control from outside
Control from host
Control from host
08
Beep on card read
Possibly to control
from outside
LED normally on, switch off at reading
Possibly to switch off from outside
Blinking at reading Possibly to
switch on from outside
Interface RS232
To control annunciation send control packet to the reader. Packets should be
transmitted with 2 400 baud rate, 8 bit data, no parity, 1 stop bit.
Figure 4
