GeoVision GV-Reader1251 User Manual

18
2.3.2 Connecting through RS-485 Interface
The following diagrams use GV-RK1352 and GV-AS810 Controller as an example. Up to
eight readers can be connected together to the RS-485 interface on GV-AS810 Controller.
 Connecting four or less readers to GV-AS810 Controller:
Wire Color Function
Black GND
Light Blue RS-485 -
Blue RS-485 +
Red DC 7.5 ~ 12V
RS485
12V
A+
A-
B+
B-
GND
Reader 1
(Black)
(Light Blue)
(Blue)
(Red)
Reader 4
GV-AS810 Controller
GV-RK1352 or GV-R1352
 Connecting five or more readers to GV-AS810 Controller:
For readers five to eight, connect the RS-485 cable to the RS-485 interface on GV-
AS810 Controller and then connect the 12V power output and GND of the reader to a
12V DC power output on the controller.
(Red)
(Black)
RS485
12V
A+
A-
B+
B-
GND
(Black)
(Light Blue)
(Blue)
(Red)
GV-AS810 Controller
12V OUTPUT
12V
GND
12V
GND
12V
GND
Readers 1-4 Readers 5-8
GV-RK1352 or GV-R1352

GeoVision GV-Reader1251 Specifications

General

Brand	GeoVision
Model	GV-Reader1251
Category	Card Reader
Language	English