11
Terminal Connectors:
EXAMPLE 1：Connect Alarm In One with PIR (Passive Infrared).
EXAMPLE 2：Connect with Alarm Siren at Relay N.O.
D+
RS-485 sends +/ receives +
D -
RS-485 sends -/ receives -
ALARM1-2 Camera alarm input.
GND
GND.
N.C
Relay N.C.
COM
Relay COM
N.O
Relay N.O.