Terminate auxiliary power – ETC Unison ERn Rack-mount Control Enclosure User Manual

Page 21

Connect Wiring

Step 3:

Remove the LinkPower connector (labeled LON).
•

Notice the LinkPower/LON connector is

labeled to indicate that the connector is split

between two LON segments, allowing three

station wire home runs per segment. This is

effective only when a Paradigm dual station

repeater module (P-DREP) is used. With the

standard Paradigm station repeater module

(P-REP) you may connect up to six station

home runs to the connector for the single LON

segment control.

Step 4:

Loosen the terminal screws for as many wire pairs

you are terminating. Keep in mind that the

connector is split into two LON segments. Be sure

to terminate each wire pair to the correct segment.

Step 5:

Insert each white (typical) wire from the pairs into an “A” terminal on the

connector and tighten the screw firmly to secure the wire into the connector.

Step 6:

Insert each black (typical) wire from the pairs into an “B” terminal on the

connector and tighten the screw firmly to secure the wire into the connector.

Step 7:

The 14 AWG (2.5mm

) ground wire can terminate to the ground bus located on

the rear panel of the ERn enclosure. Connect the other end of the ground wire to

the green/yellow striped wire connected at the architectural control station using

a Scotchlok connector. Reference the related

station installation manual

for

further details.

Step 8:

Replace the connector to the rear panel I/O.

Terminate Auxiliary Power

Auxiliary power is required when you are installing powered Unison control stations. ETC

recommends using two 16 AWG (1.5mm

) stranded wires for 24 Vdc auxiliary power to the

control station(s). Auxiliary power is topology-free. Maximum auxiliary voltage runs are

dependant by the wire gauge and the distribution of auxiliary load determined by each

installation. the auxiliary supply is capable of 36W (1.5A at 24 Vdc).

The auxiliary power connector (labeled Aux Power) provides

termination for up to 20 wires in the ten position pluggable

connector. Each terminal allows up to two 16 AWG (1.5mm

)

wire and provides 24 Vdc power to Unison control stations when

used with the Paradigm ACP.

Step 1:

Pull auxiliary control power wiring (typically 16 AWG
(1.5mm

) red / black wire pair) to the ERn enclosure

rear panel.

Step 2:

Strip 3/16” (5mm) of insulation from the ends of each

wire pair.

Step 3:

Remove the auxiliary power connector from the I/O

board.

Step 4:

Loosen the terminal screws for as many auxiliary wire

pairs as you are terminating.

Step 5:

Insert the black (typical) auxiliary power wire from the pair into a “-” terminal on

the connector and tighten the screw to secure the wire into the connector.

Step 6:

Insert the red (typical) auxiliary power wire from the pair into a “+” terminal on the

connectors and tighten the screw to secure the wire into the connector.

Step 7:

Repeat steps 5 and 6 for all auxiliary power wires in the enclosure.

Step 8:

Replace the connector to the rear panel I/O.