B
ioEntry Smart/Pass BioEntry Installation Guide 11
Copyright © 2005 by Suprema Inc. http://www.supremainc.com
Table 1> BioEntry wire colors
Warnings: Care should be taken identifying the wires. Improper wiring may render
permanent damage to the device or personal injury.
2.2.
Power connection
Use ‘POW+’ and ‘POW_GND’ wires to connect BioEntry to a DC supply, rated at
9~24V, 500mA. The power cable should be as short as possible to minimize wire
resistance and emissions.
Additionally, for compliance regulations, a ferrite core should be installed to supply
lines. The installation of this ferrite core is mandatory for R&TTE compliance.
For optimum ESD resistance and safety, please make proper connection of
‘Earth GND’.
BioEntry
Pigtail cable
Ferrite
Core
Ferrite
Core
POW+,
POW_GND
3 turns
To power
supply
Other
signals
Figure 1 Power connection
2.3.
Connecting to a Wiegand compatible reader
The BioEntry supports Wiegand compatible readers of various formats, including
26bit standard.
Connect ‘WIN_D0’, ‘WIN_D1’ and ‘WIN_GND’ wires to ‘Data 0’, ‘Data 1’ signals
and signal ground of the Wiegand reader, respectively. The input signals can
tolerate voltages up to 12V dc.