User Manual

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User Guide, iCLASS OEM050 Drawing No: 3131-901
Rev 1 Sheet: - 5 -
I/O Functionality
Connector Pin # Pin Name Function
P1 3 Serial Transmit Transmit pin for serial communications. May
connect to an off-board RS-232 driver or
directly to a uprocessor UART.
P1 4 Serial Receive Receive pin for serial communications. May
connect to an off-board RS-232 driver or
directly to a uprocessor UART.
P1 5 +5VDC Return Return for the +5VDC supply.
P1 6 +5VDC Separate supply for uprocessor and other 5V
circuitry.
P2 1 Open Output Extra output pin that may be controlled by the
OEM through the serial communication
interface.
P2 2 Ground Extra return pin for any I/O that are wired to a
remote location.
P2 3 Wiegand Data1 Wiegand data output.
P2 4 Wiegand Data0 Wiegand data output.
P2 5 Power On Reset Input that allows the OEM to control when the
processor resets upon power-up.
P2 6 Hold Input that allows the OEM to put the reader in
Hold mode.
I/O Electrical Specifications
Nominal Values Pin Name
Voltage Current
Notes
+5VDC 47mADC
+8VDC 75mADC
Exc Supply
+12VDC 105mADC
Values listed for the current are based on 100% duty cycling of the
exciter. Normal operating conditions for the exciter is 10% duty
cycling.
V
MAX
= +12VDC
V
MIN
= +2.7VDC
Serial Transmit Refer to Microchip PIC18LF452 datasheet
Serial Receive Refer to Microchip PIC18LF452 datasheet
+5VDC +5VDC 46mADC V
MAX
= +5.25VDC
V
MIN
= +2.7VDC
Open Output Refer to Microchip PIC18LF452 datasheet
Wiegand Data1 Refer to Microchip PIC18LF452 datasheet
Wiegand Data0 Refer to Microchip PIC18LF452 datasheet