User`s manual

70
External Alarm I/O Circuit Diagram
Warning!
• Where connecting of a low or high current loop to the external alarm input/output of the
product is required, the wiring and connection shall be conducted by a qualified electrician.
Incorrect wiring may bring about damage to the product fatal electric shock.
• Direct connection of the external alarm input/output terminal to high-current equipment is
not allowed and a customized repeat circuit might be required (provided by the customer)
for some cases to isolate the terminal and the high-current equipment. Where the
voltage/current of an external device exceeds the loading capability (5V) of the Alarm I/O,
the product would be damaged seriously.
Warning! The alarm will be triggered when alarm
p
in 1 & 2 are formed as a short circuit. Please do not
connect the electric voltage or current into alarm input
p
in for the electronic current might burn the product.
Warning! The alarm will be triggered when alarm
p
in 2 & 3 are formed as a short circuit. Please do not
connect the electric voltage or current into alarm input
p
in for the electronic current might burn the product.
Pin 1
Pin 2
Pin 3