Power Supply; Status Led - ACS ACR 38 Reference Manual

Power Supply

The ACR38 requires a voltage of 5V DC, 100mA regulated power supply. The ACR38 gets the power supply
from the PC (through the cable supplied along with each type of reader).

Status LED

Green LED on the front of the reader indicates the activation status of the smart card interface:
Flashing slowly (turns on 200ms for every 2 seconds)
Indicates that the ACR38 is powered up and is 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 that there is communication between the ACR38 and the smart card.
ACR38 Reference Manual
Version 2.2 January 2008
A C R 3 8 S m a r t C a r d R e a d e r / W r i t e r
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