ACS AET65 Smart Card Reader with Fingerprint Sensor - Manual (Page 10)

7.0. USB Interface
The AET65 is connected to a computer through a USB following the USB standard.
7.1. Communication Parameters
The AET65 is connected to a computer through USB as specified in the USB Specification 2.0. The
AET65 is working in full speed mode, i.e. 12 Mbps.
Pin Signal Function
1 V
BUS
+5 V power supply for the reader
2 D- Differential signal transmits data between AET65 and PC.
3 D+ Differential signal transmits data between AET65 and PC.
4 GND Reference voltage level for power supply
Table 1. USB Interface Wiring
Note: In order for the AET65 to function properly through USB interface, the ACS PC/SC
Device Driver has to be installed.
7.2. Endpoints
The AET65 uses the following endpoints to communicate with the host computer:
Control Endpoint For setup and control purposes
Bulk OUT For command to be sent from host to AET65 (data packet size is 64 bytes)
Bulk IN For response to be sent from AET65 to host (data packet size is 64 bytes)
Interrupt IN For card status message to be sent from AET65 to host (data packet size is 8
bytes)
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AET65 Reference Manual
Version 1.00
Page 10 of 19
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