User's Manual

Document type: Title: Revision date: Revision:
User's Manual (MUT) Mod. A528 OEM UHF Multiregional compact reader 02/04/2008 2
Fig. 2-6: Mod. A528 TST-recovery connection
2.2.8. A528 USB connector pinout
A528 USB interface connector is a Molex SMD, 2 poles, 1.27 pitch connector whose
pinout is shown in table below.
Table 2.4: USB connector electrical specifications
Pin Function Direction Description
1 DDM IN/OUT USB data -
2 DDP IN/OUT USB data +
A528 board provides only the USB data signals; in order to implement a full USB
interface some external components shall be used. The external circuit necessary for
A528 USB operation is shown in the schematic below.
Fig. 2-7: Mod. A528 USB interface connection
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