User's Manual

ACR1251U-C User Manual
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Version 1.00.00
www.acs.com.hk
Page 12 of 13
Appendix A. Parameter sheet
Device
ACR1251U-C Smart Card Reader/Writer
Power supply
Supply voltage................................ Regulated 5V DC
Supply current ................................ <200mA
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 1/2/3/4, 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............................... Landing
Card insertion cycles ...................... min. 100,000
SAM Smart Card Interface
Standard ........................................ ISO 7816 1/2/3, T=0 and T=1
Supply current ................................ max. 50mA
Smart card voltage ......................... 5V
Smart card read / write speed ........ 9600 – 344kbps
Short circuit protection .................. +5V / GND on all pins
CLK frequency ............................... 4.0MHz
Contactless Smart Card Interface
Standard ............................................. ISO 14443 A & B Parts 1-4, ISO 18092
Protocol
.............................................. ISO14443 T=CL for ISO14443-4 compliant cards and T=CL Emulation for MIFARE
1K/4K
Smart card read / write speed ............... 106 kbps, 212 kbps, 424 kbps
Operating Frequency for Contactless Cards Access
Operating Frequency ............................ 13.56 MHz
Antenna
Antenna Size ........................................ 64mm x 55mm
Operating distance ............................... up to 50 mm (Depend on Card Type)
Built-in peripherals
Monotone buzzer
2x Single Color LED