User Manual

www.id-innovations.com
6
ID-2/12/20 LA Series Datasheet X1
11.04.2013
6. Pin Description & Output Data Formats
Pin #
Description
ASCII
Magnet
Emulation
Wiegand26
Pin 1
Zero Volts
GND 0V
GND 0V
GND 0V
Pin 2
Strap to Pin11
Reset Bar
Reset Bar
Reset Bar
Pin 3
To External Antenna ID-2LA only
Antenna
Antenna
Antenna
Pin 4
To External Antenna ID-2LA only
Antenna
Antenna
Antenna
Pin 5
Card Present
No function
Card Present*
No function
Pin 6
Tag in Range (Future)
Tag in Range
Tag in Range
Tag in Range
Pin 7
Format Selector (+/-)
Strap to GND
Strap to Pin 10
Strap to +5V
Pin 8
Data 1
CMOS
Clock*
One Output*
Pin 9
Data 0
TTL Data (inverted)
Data*
Zero Output*
Pin 10
3.1 kHz Logic
Beeper / LED
Beeper / LED
Beeper / LED
Pin 11
DC Voltage Supply
+2.8 thru 5V
+2.8V thru 5V
+2.8V thru 5V
* Requires 4K7 Pull-up resistor to +5V
Pin1 is the zero volts supply pin and the communications common ground.
Pin2 is used in manufacture and should be strapped to pin11 at all times.
Pin3 is only connected on the ID-2LA and it should be connected to an external antenna of
1.337mH. On the ID-12LA and ID-20LA modules pin3 should be left blank.
Pin4 is only connected in the ID-2LA. It should be connected to an external antenna. It should be
left blank on the ID12LA and ID20LA modules.
Pin5 is only used as a ‘Card Present’ output when the output format is set to Magnetic Emulation.
For timings see the ‘Magnetic Emulation Waveforms in section 5.
Pin6 is used as a ‘Tag in Range’ indicator. When a tag is in range the pin is set to VDD voltage else it
is at 0v. Pin6 output has an internal 3K3 resistor and may be used to drive an LED directly.
Pin7 is the format selector. The format selector selects the format depending where it is connected.
See table above. Note that the output format is decided at switch on and cannot be changed later.
Pin8 has alternate functions. When the output format is set to Magnetic Emulation pin8 is used as
the ‘Clock’ output. For timings see the ‘Magnetic Emulation Waveforms in section 5. The alternate
mode is active when the output format is set to ASCII and pin8 then outputs the ASCII data. Pin 8
may be used to connect to a computer RS232 input. See section on connecting to a computer.
Pin9 is active when the output format is set to ASCII and it outputs complementary (inverted) ASCII
data output. Pin 9 is also suitable for connection to a UART.
Pin10 is the beeper out pin. When the beeper is active pin10 delivers an output square wave of
approximately 3.3KHz. The pin is not buffered and cannot be used to drive a beeper directly.