User's Manual

SMT User Manual
Introduction
9
Alarm Output:
The way to connect alarm output device:
Pull out the green terminal blocks and loosen the screws in the alarm-out port. Then insert the
signal wires of the alarm output devices into the port of NO and COM separately. Finally,
tighten the screws. Provided that the external alarm output devices need power supply, you can
connect the power supply as per the following figures.
 RS485 Connection
The P/Z interfaces are unavailable temporarily. K/B interfaces are used to connect keyboard.