5.0. USB Interface
The BioCARDKey is connected to a computer through a USB following the USB standard.
5.1. Communication Parameters
The BioCardKey is connected to a computer through USB as specified in the USB Specification 1.1.
The BioCARDKey is working in full speed mode, i.e. 12 Mbps.
USB Interface Wiring
Pin
Signal
Function
1 V
BUS
+5V power supply for the reader
2 D-
Differential signal transmits data between BioCARDKey and PC.
3 D+
Differential signal transmits data between BioCARDKey and PC.
4 GND
Reference voltage level for power supply
NOTE:
In order for the BioCARDKey to function properly through the USB interface, ACS PC/SC
device driver has to be installed. Please refer to the BioCARDKey
Device Driver Installation Guide
for
more detail.
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AET60 Reference Manual
Version 1.7
Page 8 of 24
www.acs.com.hk
