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Appendix A. Parameter sheet
Device
ACR1251U Smart Card Reader/Writer
Power supply
Supply voltage................................ Regulated 5V DC
Supply current ................................ <200mA (without smart card)
Universal Serial Bus Interface
Type ............................................... USB, four lines: +5V, GND, D+ and D-
Connector ...................................... supplied together with the reader
Speed............................................. Full Speed Device, 12 Mbps
Contact Smart Card Interface
Standard ........................................ ISO 7816 1/2/3, T=0 and T=1
Supply current ................................ max. 50mA
Smart card voltage ......................... 5V / 3V / 1.8V
Smart card read / write speed ........ 9600 – 344kbps
Short circuit protection .................. +5V / GND on all pins
CLK frequency ............................... 4.8 MHz
Card connector............................... SIM Connector
Contactless Smart Card Interface
Standard
...............................................ISO 14443 A & B Parts 1-4, ISO18092
Protocol
................................................ISO14443 T=CL for ISO14443-4 compliant cards and T=CL Emulation for MIFARE
Smart card read / write speed................106 kbps, 212 kbps, 424 kbps and 848 kbps
Operating Frequency for Contactless Cards Access
Operating Frequency .............................13.56 MHz
Antenna
Antenna Size..........................................65mm x 60mm
Operating distance.................................up to 50 mm (Depend on Card Type)
Built-in peripherals
Monotone buzzer
Dual-Color LED
Case
Dimensions ....................................
Color .............................................. White Blue
Operating Conditions
Temperature .................................. 0 - 50 C
Humidity ......................................... 10% - 80%
Cable Connector
Length ....................................................1.5m (USB)
ACR1251U-A2CNCA500
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Design Specification
Version 1.00.00
1K/4K, ISO 18092 FelCa and NFC tag
98 mm (L) x 65 mm (W) x 12.8 mm (H)
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