Avtech AVC792 Manual Del Usuario página 24

‧ 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
4
EXTERNAL ALARM COM
5
EXTERNAL ALARM NO
6~7
ALARM INPUT
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
PIN 6
PIN 7
*
DESCRIPTION
Alarm Corresponding video channel
1 CH1
2 CH2
20