9
POWER
AC 24V
AC 24V
POWER
POWER
AC 24V
BNC
SPOT MONITOR
MAIN MONITOR
BNC
BNC
AWG # 24
SW1
T
X
B
(T
X
-)
T
X
A
(T
X
+
)
R
X
A
R
X
B
T
X
A
T
X
B
T
X
B
T
X
A
R
X
B
R
X
A
1 AUX OUTPUT
4 ALARM INPUT
RS-485 or
RS-422 HALF DUPLEX MODE
T
X
A
(T
X
+
)
R
X
B
(R
X
-
)
R
X
A
(R
X
+
)
T
X
B
(T
X
-)
FGND AC- AC+
TXB TXA RXB RXA
R
X
A
R
X
B
T
X
A
A
C
+
A
C
-
T
X
B
VIDEO
T
x
+
(D
O
M
E
1
+
)
T
x
-(
D
O
M
E
1
-
)
4 ALARM INPUT
RS-422
FULL DUPLEX MODE
1 AUX OUTPUT
J4 ALARM2
1
COM B
2
NC B
3
NO B
4
GND
5
ALARM8
6
ALARM7
7
ALARM6
8
ALARM5
J2 ALARM1
1
COM A
2
NC A
3
NO A
4
GND
5
ALARM4
6
ALARM3
7
ALARM2
8
ALARM1
2.1.2 Single DVR configuratoin
Figure 3
–
Single DVR
