6
7 Barrier Connection
8
RS485
Connection
Barrier gate
+12V
GND
GND
485+
485-
12V
485B
485A
GND
TXD1
RXD1
GND
GND
GND
12V
12V
485 reader
12V
485B
485A
GND
TXD1
RXD1
GND
GND
GND
12V
12V
Note:
485A and 485B can be connected to the barrier gate or the 485 reader, but cannot be
connected to the gate and the reader at the same time.
