ACR101I – Reference Manual
Version 1.01
www.acs.com.hk
Page 6 of 21
4.0. Power Supply
The ACR101 (CCID) requires a voltage of 5 V DC, 100 mA regulated power supply. It gets the power
supply from the personal computer.
4.1. Status LED
Bicolor LED on the front of the reader indicates the activation status of the smart card and flash
memory interface.
GREEN LED:
Flashing slowly (turns on 200ms for every 2 seconds)
Indicates smart card interface part is powered up and in the standby state. Either the smart
card has not been inserted or the smart card has not been powered up (if it is inserted).
Lighting up
Indicates power supply to the smart card is switched on, i.e., the smart card is activated.
RED LED:
Lighting up
Indicates a communication between ACR101 (CCID) and flash memory.
