Installation 17
IDS-509G Hardware Installation Guide
Wiring Digital Inputs
The IDS switch has two digital input connections, one to sense to Dry Contact and one to
sense a Wet Contact.
IN1: This can sense a dry contact. On this terminal pair the IDS switch provides a voltage
and current and can monitor the opening can closing of a dry contact switch.
IN2: This can sense a wet contact. On this terminal pair the IDS switch provides no volt
-
age but relies on the input circuit to provide this. See specifications for values.
To connect these:
1. Ensure the power source is off prior to connection.
2. Strip 2x12-20AWG (3.31 mm² -0.52 mm²) twisted pair copper wires 7-8 mm.
3. Loosen the terminal block screws and connect wires into the terminals. For IN2,
ensure that the live side of the input circuit is connected to the + terminal and the
return to the -.
4. Tighten terminal screws. Ensure the wires are securely fastened.
5. Re-insert the Terminal block connector if removed.
6. Turn on power source.
Warning:
Ensure power has been removed at the source of the alarm circuit prior to pro
-
ceeding with connections to the alarm relay.
Warning
: Ensure the voltage and current supplied by the alarm circuits are within the
stated Digital Input specifications.
Warning
: In hazardous location installations, failure to remove the power from the source
prior to completing the wiring connections to the alarm relay could cause an electrical arc
resulting in a possible explosion.
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