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参数资料
| 型号： | UNI-SDK-RWD |
| 厂商： | RF Solutions |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR RFID/USB/RS232 |
| 标准包装： | 1 |
| 类型： | 读取器模块 |
| 频率： | * |
ib technology
Universal socket board (with 125kHz coil antenna mounted on the underside) was designed to
fit in the Evatron EVA73 plastic case giving the option of a fully enclosed product.
The Universal socket board can be powered directly from a stabilised 5 volt supply, from the
9-12 volt DC connector or from the USB bus. The MicroRWD module itself has a low
average current (approximately 15-20ma) but consumes up to 200ma in a short burst every
polling cycle when the RF is turned on for the brief communication period. The Universal
socket board uses a 470uF capacitor across the supply rails to smooth these current pulses and
so the entire board consumes around 60 ma and can operate directly from a USB bus with no
external power supply.
Universal socket board link options
The board has link options to select the on-board 13.56MHz PCB antenna or the external
125kHz antenna coil and various options for supplying power to the board and interfaces.
CON J6, 125kHz antenna connections
CON J3, 0.1, 2-way pin
header, 5v stabilised supply
(GND, +5v)
J2 connects power from
regulator to board.
CON J8, 125kHz or 13.56MHz
antenna selection
AN3
RED GREEN LEDS
J7 connects power to
MAX202 RS232
converter
AN5
AN4
AN1
RWD
Pin 1
CON J1, 9-12v
DC, 2.5mm
Power Socket
AN6
AN2
(+ve centre pin )
CON J10,
RS232 socket
RED LED
GRN LED
OP3
OP2
USB SLEEP
USB CLK
USB PWREN
USB RESET
0v GND
OP1
OP0
MCLR / (VPP)
RX / (DATA)
TX / (CLK)
GND
CTS
SW1
0v GND
(9-way female
D-type connector)
USB connector
5v
5v
CON J9, 2 x 10 x 0.1 inch pin header
J4 connects power to USB module
1
(all available signals, 5v supply and GND) J5 connects external USB bus 5v to board
2
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