Nedap uPASS Access User Manual

uPASS Access | installation guide
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3.2.3 Wiegand
The Wiegand and Magstripe ISO7811/2 (clock & data) interface share the same connections. This means that only
Wiegand or Magstripe can be used and not both simultaneously
Wiegand connections
GRAY
Data-0
PINK
Data-1
GROUND
Ground
SHIELD
Shield connected to DC-ground. Connect to metal case of the external device.
Message format
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 interface. See the uPASS how to order guide for more information.
If UHF tags is not programmed in Wiegand format, you may configure Wiegand output format using the 'Extra output'
settings. See for more details chapter 5.3.3.
Wiegand timing
The figure below shows the Wiegand protocol timing.
Tpw
5V
0V
DATA-1
5V
0V
DATA-0
Tpi
Tpi
Tpw
Figure
7: Wiegand timing details
Timing constants
Pulse interval time (Tpi)
1msec
Pulse
width time (Tpw) 50µsec
OSDP firmware
The OSDP firmware does not support the Wiegand interface!
Notes
• Use shielded cable (4 x 0.25 mm
2
) when extending the Wiegand wiring beyond the standard 5 meter cable.
• Maximum Wiegand cable length 150 meters (
500 feet).

Nedap uPASS Access Specifications

General

Brand	Nedap
Model	uPASS Access
Category	Rfid Systems
Language	English