Safety Vision 48 Series, Руководство пользователя

Страница: 12 / 24

48 SERIES IP CAMERA 10
Connect Alarm Input/Output Cables
1. Connect alarm input device to the alarm input of I/O port.
When the input signal is idle or grounded, the device can collect the
different statuses of the alarm input port. When the input signal is
connected to 3.3V or it is idle, the device collects the status “
1 ”. When the
input signal is grounded, the device collects the status “ 0 ”.
2. Connect alarm output device to the alarm output of I/O cable, alarm
output is an open circuit output which connects a 10K resistor to 3.3V
externally.
Mode A: Level application. Alarm output high and low level, alarm output
is OC; it needs to increase pull-up resistance externally to work normally.
Max external pull-up level is 12V, max port current is 300mA
(peak) . After
external pull-up resistance is increased, the default output signal is high
level (external pull-up voltage), and it switches to low level when there is
alarm output.