APPENDIX 1 PIN CONFIGURATION (Selected models only)
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APPENDIX 1 PIN CONFIGURATION (Selected models only)
PIN FUNCTION DESCRIPTION
1~4
ALARM INPUT
Connect ALARM INPUT (PIN1 – 4) and GND (PIN5) connector with wires. Once an
alarm is triggered, the DVR will start recording and the buzzer will be on.
PIN 1 is Alarm 1. Once the alarm is triggered, the CH1 of the DVR will start alarm-triggered recording.
PIN 2 is Alarm 2. Once the alarm is triggered, the CH2 of the DVR will start alarm-triggered recording.
PIN 3 is Alarm 3. Once the alarm is triggered, the CH3 of the DVR will start alarm-triggered recording.
PIN 4 is Alarm 4. Once the alarm is triggered, the CH4 of the DVR will start alarm-triggered recording.
5
GND GROUND
6
EXTERNAL ALARM COM
Under the normal operation, COM disconnects with NO. But when any alarm is
triggered, COM connects with NO.
Attention: The voltage restriction is under DC24V 1A.
7
EXTERNAL ALARM NO
Under the normal operation, COM disconnects with NO. But when any alarm is
triggered, COM connects with NO.
Attention: The voltage restriction is under DC24V 1A.
8
RS485-A
Using RS-485 serial communication signals, DVR can be controlled by keyboard
controller.
9
RS485-B
Using RS-485 serial communication signals, DVR can be controlled by keyboard
controller.
10~11
GND GROUND
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