17
B
RS485_B port, control
external PTZ
1
Alarm input port 1
Alarm input port 1. To
receive the signal from
the external alarm
device.
2
Alarm input port 2
Alarm input port 2. To
receive the signal from
the external alarm
device. (For F725
series only.)
NO
C
1-ch alarm output
Alarm output port. To
output alarm signal to
the alarm device.
NO: Normal open
alarm output end.
C: Alarm output public
end,
RX RS232_RX
,
RS232
receive end.
TX
Transparent debug
serial port
RS232_TX
,
RS232
COM send out end.
G GND
Ground end
RESET
RESET button
Restore factory default
setup.
When system is
running normally
(power indication light
is green), press the
RESET button for at
least 5 seconds,
system can restore
factory default setup.