Introduction
AHD Hybrid DVR User Manual
4
No.
Name
Descriptions
1
AUDIO IN
Audio input; connect to audio input device, like microphone, pickup, etc
2
AHD VIDEO IN
16CH AHD Video Inputs
3
AUDIO OUT
Audio output; connect to sound box
4
RS485
Connect to keyboard or speed dome. A is TX+; B is TX-
4
HDMI
Connect to high definition display device
5
VGA
Connect to monitor
6
LAN
Network port
8
USB
Connect USB storage device or USB mouse
9
DC12V
DC12V power input
No.
Name
Descriptions
1
AUDIO IN
Audio input; connect to audio input device, like microphone, pickup, etc
2
AHD VIDEO IN
16CH AHD Video Inputs
3
AUDIO OUT
Audio output; connect to sound box
4
GND
Grounding
5
RS485
Connect to keyboard or speed dome. A is TX+; B is TX-
6
ALARM OUT
Relay output; connect to external alarm
7
ALARM IN
Alarm inputs for connecting sensors
8
HDMI
Connect to high definition display device
9
VGA
Connect to monitor
10
LAN
Network port
11
USB
Connect USB storage device or USB mouse
12
DC12V
DC12V power input
1.4 Connections
Video Connections
Video Input: The interfaces of video inputs are BNC interfaces. The input signal is PAL/NTSC
(1.0Vp-P,75Ω).
Video Output: Supports VGA/HDMI video output. You can connect to monitor through these
video output interfaces simultaneously or independently.