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E T C   I n s t a l l a t i o n   G u i d e

AV/Serial Interface Station

Unison

®

  Heritage  AV/Serial  Interface  Station

Page 2 of 3

Electronic Theatre Controls, Inc.

Connect the Wiring

Step 1:

Pull all required wiring to the backbox .

Step 2:

Terminate and connect LinkPower. LinkPower is topology free and polarity independent. 
You may install LinkPower in any combination of bus, loop, star or home-run.

a: Locate the LinkPower pigtail and two WAGO cage clamp connectors from the termination 

kit.

b: Strip 3/8” (9-10mm) from the ends of each LinkPower wire (both pigtail and installed 

LinkPower wire).

c: Use the WAGO cage clamp connector to connect the installed control wire to the 

connectorized pigtail wires provided. Open the terminal levers on the WAGO connector 
and insert the installed (typically black) Belden 8471 LinkPower wire and the black lead 
from the LinkPower pigtail into the terminals.

d: Close the levers onto the wires.
e: Repeat for the installed (typically white) Belden 8471 LinkPower wire and remaining pigtail 

wire using a new WAGO connector.

f: Install the LinkPower connector to J4 (NET) on the AV/Serial Interface control board.

Step 3:

Terminate and connect Auxiliary Power (24 Vdc) wiring.
a: Locate the Auxiliary Power pigtail and two WAGO cage clamp connectors from the 

termination kit.

b: Strip 3/8” (9-10mm) from the ends of each Auxiliary wire (both the provided pigtail and 

installed wire).

c: Use the WAGO cage clamp connector to connect the installed power wire to the 

connectorized pigtail wires provided. Open the terminal levers on the WAGO connector 
and insert the installed (typically black) 16 AWG (1.5mm2) Auxiliary Power wire and the 
black lead from the pigtail into the terminals.

d: Close the levers onto the wires.
e: Repeat for the installed (typically red) 16 AWG (1.5mm2) Auxiliary Power wire and 

remaining pigtail wire using a new WAGO connector.

f: Install the Auxiliary connector to J3 (Power) on the AV/Serial Interface control board.

Step 4:

Terminate the ESD drain (ground) wire. This connection is required only when the control 
cable is not installed in grounded metal conduit.
a: Locate the ground wire pigtail and one WAGO cage clamp connector from the termination 

kit.

a: Strip 3/8” (9-10mm) from the end of each ground wire (both the provided pigtail and the 

installed wire).

b: Use the WAGO cage clamp connector to connect the installed ground wire to the pigtail 

wire provided. Open the terminal levers on the WAGO connector and insert the installed 
(typically green/yellow) ESD drain (ground) wire and the green/yellow lead from the pigtail 
into the terminals.

c: Close the levers onto the wires.
d: Install the ground spade to the receptacle on the AV/Serial Interface Station control board.

topology of a single 

station installation

topology of multiple 

stations installed in 

series

installed control wire

pigtail wire

installed control wire
installed control wire to next station
pigtail wire

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