PORT Technology PCR-TWN4, Руководство пользователя

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4
© PORT Technology by Schindler Ltd - Oct 20, 2017
2 General board implementation
Block schematic
Functionality
The main function of the PCR-TWN4 board is a RFID reader to be integrated into Schindler’s
PORT1 and PORT4 devices. The communication between the PCR-TWN4 and the host is
made through the USB.
USB and Power supply
The main board power supply is U = 5 V
DC
± 5% Imax = 500 mA from the Host The USB
communication is 2.0 Full-Speed (12Mbps). USB from the host is connected to the TWN4
board.
Connector: SMD 4 poles JST male conn., right angle, 2 mm, Id. Nr. 432841
Silkscreen: USB
pin signal
name
max.
voltage Tol. max.
current description
1 VCC1 5 VDC ±5% 500 mA power
2 USB_DM 5 VDC ±5% 50 mA USB data
3 USB_DP 5 VDC ±5% 50 mA
4 M0 0 VDC - - ground
USB
Wiegand
output
IOs
K-LC1a
radar
interface
JRC
radar
interface
PCR-TWN4
TWN4 module
4 RGB LEDs
SAM
socket
(optional)
HF antenna
LF antenna
(optional)