GeoVision GV-AS2120 IP Control Panel - Manual (Page 75)

GV-AS120 Controller
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3
3.1 Introduction
Working as a standalone solution, GV-AS120 is a card reader and also a single door
controller. It is possible to add one more card reader to GV-AS120 for entry and exit
applications. GV-AS120 has the capability to store up to one thousand cards. Programming
of GV-AS120 is done from the software GV-ASManager through the RS-485 connection.
An economic solution for access control, GV-AS120 is suitable for controlling doors, parking
gates and access to elevator call buttons.
Wiegand Reader
OUT
Door
RS-485
GV-HUB /
GV-COM /
GV-NET/IO Card
RS-232
GV-ASManager
GV-AS120
IN
Figure 3-1