
APPENDIX 6 PIN CONFIGURATION
77
‧ With 7-pin external I/O block
1234
567
External I/O Block
PIN FUNCTION DESCRIPTION
1 GND GROUND
2 RS485-A
3 RS485-B
4
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.
5
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.
6~7 ALARM INPUT
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 Corresponding video channel
PIN 6 1 CH1
PIN 7 2 CH2
*
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