10
2.1.3 Single User with Two Multiplexer
POWER
AC 24V
AL
5
AL
6
GN
D
AL
7
AL
8
GN
D
CO
M3
NC
3
NO
3
CO
M4
NC
4
NO
4
AL
1
GN
D
AL
2
AL
3
GN
D
AL
4
CO
M1
CO
M2
NO
1
NC
1
NO
2
NC
2
A
C
+
R
X
-(
T
X
-)
R
X
+
(T
X
+
)
A
C
-
(R
X
-)
F
G
N
D
A
C
+
A
C
-
(R
X
+
)
G
N
D
R
S
-4
85
(RS-422)
(R
X
+
)
(R
X
-)
R
X
+
(T
X
+
)
R
X
-(
T
X
-)
AC 24V
POWER
POWER
AC 24V
BNC
1ST MULTIPLEXER
1ST MAIN MONITOR
BNC
BNC
AWG # 24
2ND MULTIPLEXER
2ND MAIN MONITOR
SPOT MONITOR
BNC
RS-485(-) PIN No.5
RS-485(+) PIN No.4
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
.
