GeoVision GV-R1352 Card Reader (13.56 MHz) - Manual (Page 27)

18
2.3.2 Connect 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:
RS
4
8
5
12V
A+
A-
B+
B-
GND
Reader 1
(Black)
(Light Blue)
(Blue)
(Red)
Reader 4
GV-AS810 Controller
GV-RK1352 or GV-R1352
Wire Color Function
Black GND
Light Blue RS-485 -
Blue RS-485 +
Red DC 7.5 ~ 12V
⚫ 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)
RS
4
8
5
12V
A+
A-
B+
B-
GND
(Black)
(Light Blue)
(Blue)
(Red)
GV-AS810 Controller
12
V
O
U
T
P
U
T
12V
GND
12V
GND
12V
GND
Readers 1-4 Readers 5-8
GV-RK1352 or GV-R1352