Terminate auxiliary power, N o t e – ETC Unison ERn Wall-mount Control Enclosure User Manual
Page 37
5
Install Rack Options
33
Step 4:
Loosen the terminal screws for as many wire pairs you are terminating. Keep in
mind that the connector is split into two segments when used with a Dual
Repeater Module. 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 ground wire can terminate to the ground bus located inside the ERn
enclosure.
•
If grounded metal conduit is installed a ground wire may not be required for
termination. Reference the related
station installation manual
for details.
Step 8:
Replace the connector on the top right I/O board.
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
installation. The auxiliary supply is capable is of powering up to four Paradigm Touchscreen
Stations and 28 interface stations.
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.
Step 1:
Pull auxiliary control power wiring (typically 16 AWG (1.5mm
2
) red / black wire
pair) into the ERn enclosure through the conduit opening previously prepared.
Step 2:
Strip 3/16” (5mm) of insulation from the ends of each wire pair.
Step 3:
Remove the auxiliary power
connector from the right 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
connector and tighten the screw to secure the wire into the connector.
Step 7:
Repeat steps 5 and 6 for each auxiliary power wire in the enclosure.
Step 8:
Replace the connector on the right I/O board.
N o t e :
When utilizing a Paradigm Station Repeater Module (P-REP) or Paradigm Dual
Station Repeater Module (P-DREP) in an ERn4 rack, terminate the repeated LON
segment(s) and auxiliary power wiring to the top right I/O board.
- + - + - + - + - +