GeoVision GV-AS Series, Installation Manual

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4.1.4.B Connecting a Wiegand Reader
GV-ASBox provides one Wiegand input for connection of the Wiegand-compatible reader
ranging from 26 to 64 bits. The connected Wiegand reader can either work with GV-AS100
/GV-AS110 to carry out entry and exit applications on a single door, or be installed on
another door for the two-door application.
The table below shows the pin assignments of the Wiegand input on GV-ASBox. Please
consult the documentation of your Wiegand reader for wiring.
Pin Function
GND GND for the Power Supply
D0 Wiegand Data 0
D1 Wiegand Data 1
12V 12V Power Supply
To define the reader, you need to use the GV-AS100/GV-AS110 Web interface. See
4.1.5.E.b Parameter Setting .
4.1.4.C Connecting GV-Readers and GV-GF Fingerprint Readers
You can connect up to 4 units of GV-Readers and GV-GF1901/1902 readers to GV-ASBox.
Multiple GV-Readers and GV-GF Fingerprint Readers can be connected with a single RS-
485 cable to separate RS-485 interfaces on GV-ASBox.
Since Wiegand communication distance is shorter than RS-485’s, you can choose GV-
Reader and GV-GF Fingerprint Reader supporting RS-485 communication to add another
door control and meet the need of long-distance installation.
Use the RS-485 B+ B- to connect to GV-Readers and use the RS-485 interface to connect
GV-GF Fingerprint Readers. Refer to the figure below to see where the RS-485 interfaces
are located. When multiple readers are connected together, an extra power supply to each
unit is required. Use the auxiliary power output of
12V and GND on GV-ASBox to power on
each unit.