Power supply, Status led – ACS ACR38K Smart Keyboard User Manual
Page 8
ACR38x (CCID) – Reference Manual
Version 6.04
www.acs.com.hk
Page 8 of 58
5.0. Power Supply
The ACR38x (CCID) requires a voltage of 5 V DC, 100 mA, regulated, power supply. The ACR38x
(CCID) gets power supply from the computer (through the cable supplied along with each type of
reader).
5.1. Status LED
The LED indicates the activation status of the smart card interface:
•
Flashing slowly (turns on 200 ms every 2 seconds)
Indicates ACR38x (CCID) 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.
•
Flashing quickly
Indicates there are communications between ACR38x (CCID) and smart card.