D-MAX DRX-500 User Manual - Functions
9
CHAPTER3. HOW TO USE THE DETAILED
FUNCTIONS
1. RS485 CONNECTION
Used when the RS485 mode is chosen in the Junction Box. Shielded Twist Paired Cable is
recommended. In case of using AWG28 cable, this receiver can send the data up to
1.2Km away. (It may differ from real spots)
In COMM SEL box, you must cover the Pin on which 'RS422/485' is written with the
socket.
Notice: There are 2 sets of Camera Control Ports in the Keyboard Controller (DCK-255),
and each of them can be connected to up to 128 receivers in parallel.
KEYBOARD JUNCTION BOX
-
-
OUT
422
485
CAMERA CONTROL 2
CAMERA CONTROL 1
+
-
C
422
OUT
-
422
+
OUT
422
IN
+
485
485
N
G
C
+
N
D
422
IN
-
422
OUT
+
N
485
IN
422
SUB KEYBOARD
G
D
N
C
C
422
+
IN
422
IN
-
N
N
C
-
+
OUT
422
422
OUT
+
-
+
485
485
N
RTS
G
RX
C
D
N
422
-
IN
RTS
N
접지
SK
DOWN
POWER
LIGHT
POWER
INPUT
E
AC
AC
CAMERA
UP
ON
POWER
SW
1
1
0
V
2
2
0
V
LENS
COM
COM
P/T
PAN/TILT
RIGHT
LEFT
A/PAN
ZOOM LENS
ZOOM FOCUS
DATA
RXD
COM
TXD
422(+) OUT
422(-) OUT
COMM SEL
485(-)
END LINE
ON
GND
522 IN
RS422/485
TTL
DATA INPUT
485(+)
422 IN
RS422/485 위치로
DATA INPUT
GND
COMM SEL
422(-) OUT
422(+) OUT
Place the Socket Like
ON
END LINE
422 IN
485(+)
TTL
RS422/485
522 IN
485(-)
this Position