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10
2.1.3 Single User with Two Multiplexer
RS-485(+) PIN No.4
RS-485(-) PIN No.5
BNC
SPOT MONITOR
2ND MAIN MONITOR
2ND MULTIPLEXER
AWG # 24
BNC
BNC
1ST MAIN MONITOR
1ST MULTIPLEXER
BNC
AC 24V
POWER
POWER
AC 24V
RX
-(
T
X
-)
R
X
+(
T
X
+)
(R
X
-)
(R
X
+
)
(RS-422)
RS
-4
85
GN
D
(R
X
+
)
AC
-
AC
+
FG
N
D
(R
X
-)
AC
-
R
X
+(
T
X
+)
RX
-(
T
X
-)
AC
+
NC2
NO2
NC1
NO1
COM
2
COM
1
AL4
GND
AL3
AL2
GND
AL1
NO4
NC4
COM
4
NO3
NC3
COM
3
GND
AL8
AL7
GND
AL6
AL5
AC 24V
POWER
Figure 4 – Two Multiplexer
Spot output of the first multiplexer to be
connected to 16
th
input of the second
multiplexer.
And first spot output of the 2
nd
multiplexer to
be connected to the spot monitor. You will see
the picture of the selected camera (1~31) on
spot monitor by selecting camera
No.+Cam
.