UPASS ACCESS | INSTALLATION GUIDE
Connections
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USB Driver installation
Make sure your computer is connected to the internet. The driver should install
automatically via Windows update when the uPASS Access reader is connected to
your PC via the USB cable. Follow the driver installation wizard. If you do not see the
Windows update pop-up, you can manually install the driver. To manually install,
you need to go to FTDI’s website at
www.ftdichip.com/Drivers/VCP.htm
and
download the VCP (Virtual Com Port) drivers for your operating system. Drivers for
MacOS and Linux are available as well.
3.2.3
WIEGAND / MAGSTRIPE
The Wiegand interface connections also support magstripe.
NEDAP UHF Wiegand tags will generate a Wiegand message on the interface.
NEDAP UHF Magstripe tags will generate a magstripe message on the interface.
Other UHF tags will not generate a message on this interface, unless the 'Extra
output' settings are used!
The Wiegand/magstripe output format is determined by the programmed format of
the tag.
Make sure to order the correct tag formatting if you want to use the Wiegand or
magstripe interface. See also the UHF tags order guide for more information.
Connections:
Wiegand connections
Magstripe connections
RAY
Data-0
Clock
PINK
Data-1
Data
BLACK
Ground
Ground
SHIELD
Shield connected to
DC-ground.
Wiegand Timing
In the figure below the Wiegand protocol timing is specified.
Tpw
5V
0V
DATA-1
5V
0V
DATA-0
Tpi
Tpi
Tpw
Timing constants:
Tpi
Pulse interval time
1msec
Tpw
Pulse width time
50µsec
Figure 3: Wiegand protocol timing
Magstripe Timing
The magstripe message length is determined by the tag. The first character will be a
Note
Extending these
connections beyond the 5
meter pig tail length shall
ONLY be allowed using
shielded cable (4 x 0.25
mm2) as long as the total
length is shorter then 150
meters (500 feet).
The shield shall be
connected to the metal
case of the external device.
