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‧ With 7-pin external I/O block
7
6
5
4
3
External I/O Block
PIN
FUNCTION
1
GND
2
RS485-A
3
RS485-B
EXTERNAL ALARM
4
COM
EXTERNAL ALARM
5
NO
6~7
ALARM INPUT
All manuals and user guides at all-guides.com
2
1
GROUND
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.
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.
Connect ALARM INPUT (PIN 6 -- 7) and GND (PIN 1) connector with
wires. Once an alarm is triggered, the DVR will start recording and the
buzzer will be on.
PIN
Alarm
PIN 6
1
PIN 7
2
*
77
APPENDIX 6 PIN CONFIGURATION
DESCRIPTION
Corresponding video channel
CH1
CH2
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