Alarm (External) Installation - Triplex H.264 User Manual

Triplex H.264 4/8/16CH DVR

2. Alarm (External) Installation

The DVR unit provides one alarm (speaker) signal. Please refer to following figure.
There are three types of alarms that the system can be configured to handle. They are
Motion detection Alarm, External Alarm and Video Loss Alarm.
A. Motion detection Alarm and External Alarm:
When motion detection or External Alarm was triggered, there are 5 possible
actions will be taken.
1. Changes recording speed as alarm recording speed.
2. Monitor will display corresponding full screen alarm channel, it will switch
automatic mode to manual mode if buttons pressing activity occurred in 5
seconds.
3. Relays can be activated by motion detection or external alarm when turning on.
4. The camera title will be transformed into color of yellow when motion is
happening, "ALARM" text will show up when external alarm is triggered.
B. Video Loss Alarm:
The default setting of Video Loss alarm is enabled.
Terminal Connectors:
Symbol
T+
T -
R-
R+
ALARM1-4
GND
N.C
COM
N.O
Digital Video Recorder
Function
RS-485 sends +
RS-485 sends -
RS-485 receives -
RS-485 receives +
Camera alarm input.
GND.
Relay N.C.
Relay COM
Relay N.O.
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