Connect to contact inputs and contact outputs, Terminate contact inputs, Terminate contact outputs – ETC Unison ERn Rack-mount Control Enclosure User Manual

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Connect Wiring

Connect to Contact Inputs and Contact Outputs

The rear panel I/O provides convenient interface (inputs and outputs) to external devices

via contact closure on removable pluggable connectors. Up to four contact inputs are

available and can be configured for either maintained or momentary operation as set in the

Paradigm architectural control processor. Reference the

Paradigm Architectural Control

Processor Configuration Manual

for details on configuration. Up to four contact outputs are

also available and are preset for normally open operation.

Terminate Contact Inputs

Step 1:

Remove the contact inputs removable screw terminal connector located on the

rear panel I/O. Each connector is labeled for installation convenience.

Step 2:

Strip 3/16” (5mm) of insulation from the end of each wire pair.

Step 3:

Loosen the desired number of contact input screw terminals and related ground

screw terminals on the connector.

Step 4:

Insert contact closure 1 into the terminal labeled “IN1” on the connector and

tighten the screw terminal.

Step 5:

Insert the related ground wire for contact closure 1 into the terminal labeled

“GND” on the connector and tighten the screw terminal.

Step 6:

Repeat for each contact input and ground wire pair (up to four total).

Terminate Contact Outputs

Step 1:

Remove the contact outputs removable screw terminal connector located on the

rear panel I/O. Each connector is labeled for installation convenience.

Step 2:

Strip 3/16” (5mm) of insulation from the end of each wire pair.

Step 3:

Loosen the desired number of contact output (normal open) screw terminals and

related ground screw terminals on the connector.

Step 4:

Insert contact output 1 into the terminal labeled “NO1” on the connector and

tighten the screw terminal.

Step 5:

Insert the related common wire for contact output 1 into the terminal labeled

“COM1” on the connector and tighten the screw terminal.

Step 6:

Repeat for each contact output and common wire (up to four total).

N o t e :

Typical contact I/O wiring is color coded as follows: contact 1 - brown, contact 2 -

orange, contact 3 - yellow, contact 4 - green. All commons and ground voltages

are typically black or red.