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3.0 Rear Panel Instruction
The interfaces of the rear panel are for reference only.
Rear panel for WAHD241A
ALARM OUT ALARM IN
COM1
COM2
Rear Panel for WAHD281A
Name
ALARM OUT
ALARM IN
GND
AUDIO IN
VIDEO IN
CVBS
AUDIO OUT
HDMI
VGA
LAN
USB
e-SATA
RS485
DC12V
7
1
3
5
7
NO1
GND
1
3
5
7
NO2
GND
2
4
6
8
2
4
6
8
AUDIO IN
Description
Relay output, connect to external alarm
Alarm input for connecting sensors
Ground
Audio input
Video input
CVBS output
Audio output
Connect to high definition display device
Connect to monitor
Ethernet connector
Connector for USB devices
Connector for e-SATA
Connector for RS485 devices. A is TX+,B is TX
Power input
CVBS
1
3
5
7
2
4
6
8
VIDEO IN
AUDIO OUT
e SATA
B
A
VGA
LAN
USB
RS485
DC12V
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