- - 7 - -
2.3
2.3
2.3
2.3 Hardware
Hardware
Hardware
Hardware installation
installation
installation
installation
2.3.1
2.3.1
2.3.1
2.3.1 System
System
System
System configuration
configuration
configuration
configuration
SD card socket
V G A
Alarm in
Alarm out
+
485 control
Audio in
Audio out
Internet/L A N
Monitor
Fig. 2.3.1 System configuration
2.3.2
2.3.2
2.3.2
2.3.2 Alarm
Alarm
Alarm
Alarm in
in
in
input
put
put
put connection
connection
connection
connection
（
-
）
GND
（
+
）
DC5-12V
