Connect Wiring
15
Terminate Auxiliary Power
Auxiliary power is required when you are installing powered Unison control stations. ETC recommends
using two 16 AWG (1.5mm
2
) 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
2
) wire and provides 24 Vdc power to
Unison control stations when used with the Paradigm ACP.
1: Pull auxiliary control power wiring (typically 16 AWG (1.5mm
2
) red /
black wire pair) to the ERn enclosure rear panel.
2: Strip 3/16” (5mm) of insulation from the ends of each wire pair.
3: Remove the auxiliary power connector from the I/O board.
4: Loosen the terminal screws for as many auxiliary wire pairs as you are
terminating.
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.
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.
7: Repeat steps 5 and 6 for all auxiliary power wires in the enclosure.
8: Replace the connector to the rear panel I/O.
S t a t u s I n d i c a t o r s
When power is applied to the ERn enclosure, the Paradigm repeater module LEDs located on the front
panel illuminate, indicating the status of the auxiliary power, LinkConnect control network, and
connected stations.
The Aux Power and LinkPower LEDs indicate in green when the Paradigm station power module is
connected properly and Aux and LinkPower are present. When there is an imbalance in LinkPower the
fault indicators illuminate. This condition typically means that the station wiring is at fault, however it
could mean a connected device is having an issue. A technician should inspect the system wire and
terminations first, then proceed to disconnecting devices to pinpoint the fault and correct it. The power
supply will update the fault indicators automatically when the fault condition is cleared.
• If the NET A line has a fault (is shorted or has leakage to ground), the Fault + LED lights.
• If the NET B line has a fault (is shorted or has leakage to ground), the Fault - LED lights.
• If neither fault LED is illuminated the data connections are properly installed and the stations are
receiving the data and power required for operation.
Note:
It is required that you terminate LinkConnect station wiring and the auxiliary power
wiring to the ERn enclosure rear panel I/O board that will host the Paradigm station
power module (P-SPM) or Paradigm station repeater module.
-
+
-
+
-
+
-
+
-
+
