User's Manual

ACR3901U-S USB Mode Driver Installation to install
1. Plug the ACR3901U-S reader into PC through USB
a. ACR3901U-S reader
This section introduces ACR3901U-S Reader using in US
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Version 1.00 www.acs.com.hk
Page 4 of 20
1.0. USB Mode Loopback program
B Mode
Tools Requirement:
b. ACOS3 Card
c. USB Cable
d. PC & USB Mode loopback program “ESD4.exe”
Test Procedure:
cable
2. Turn the switch on reader to “USB Mode” (as the picture). *For the first time of use, user
needs to install a reader driver on PC. If the Windows could not install the “Microsoft
Usbccid Smartcard Reader (WUDF)” driver automatically, please refer to section 3.0 –
the reader driver.
3. Under the path ACR3901U-S1_TestProgram/USB_Mode, Double-click ESD4.exe, you will
see the following interface
*The test program needs “Visual Basic 6.0 run time files” on PC, if “ESD4.exe”
could not be opened, please install “vbrun60sp5.exe” first under the path:
“ACR3901U-S1_TestProgram\USB_Mode\”, before running the program.