ETC DRd12-24-240, DRd6-12-240, DRd12-24-230, DRd12-24-277, DRd12-48-120 Installation Manual

Copyright © 2013 Electronic Theatre Controls, Inc.

All Rights reserved.

Product information and specifications subject to change.

Part Number:

7183M2100

Rev C

Released: December 2013

DRd Rack Enclosure
Installation Manual

Revision C

ETC®, Unison Paradigm® and SmartLink® are either registered trademarks or trademarks of Electronic Theatre
Controls, Inc. in the United States and other countries.

Echelon

®

, LON®, and LonWorks® are registered trademarks of the Echelon Corporation in the United States and

other countries. All other trademarks, both marked and not marked, are the property of their respective owners.

ETC intends this document, whether printed or electronic, to be provided in its entirety.

Table of Contents i

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Warnings and Notice Conventions . . . . . . . . . . . . . . . . . . . . . . .2

Contacting ETC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

DRd Rack Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Prepare for Installation . . . . . . . . . . . . . . . . . 5

Unpack and Inspect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Main Circuit Breaker Protection . . . . . . . . . . . . . . . . . . . . . . . . . .5

Using 90° Copper Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Maximum Current Draw of Racks . . . . . . . . . . . . . . . . . . . . . . . .6

Short Circuit Current Rating (SCCR) . . . . . . . . . . . . . . . . . . .6

Where to Install the Rack Enclosure . . . . . . . . . . . . . . . . . . . . . . . . .7

Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Rack Dimensions and Weights . . . . . . . . . . . . . . . . . . . . . . . . . .7

Installation Environment Requirements . . . . . . . . . . . . . . . . . . . .8

Wire Routing and Specification . . . . . . . . . . . . . . . . . . . . . . . . . .8

Control Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Control Wire Specification . . . . . . . . . . . . . . . . . . . . . . . . . .10

Data Types and Topologies . . . . . . . . . . . . . . . . . . . . . . . . . .10

Install Rack Enclosures. . . . . . . . . . . . . . . . 12

Mounting Individual DRd Rack Enclosures . . . . . . . . . . . . . . . . . . .13

Mounting Individual Racks on a Wall. . . . . . . . . . . . . . . . . . . . .13

Mounting a DRd Rack Enclosure on a Pedestal . . . . . . . . . . . . . . .14

Mounting Auxiliary and DRd Rack Enclosures Together . . . . . . . . .15

Rough-in Conduit and Wiring . . . . . . . . . . . 17

Prepare the DRd Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Remove the DRd Rack Power Supply/Dimming Engine Access

Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Modify Phase Bus for 120 VAC Split Phase Operation . . . . . . .19

Rough-in Conduit to the DRd Rack . . . . . . . . . . . . . . . . . . . . . . . . .21

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Terminate Wiring. . . . . . . . . . . . . . . . . . . . . 24

Connect Line Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Connect Line Feed in an Individual DRd Rack Installation . . . .25

100, 120, 127 VAC, 3Ø DRd Racks . . . . . . . . . . . . . . . . . . .26

230 VAC Neutral Disconnect DRd Rack. . . . . . . . . . . . . . . .27

240, 277 VAC DRd Racks . . . . . . . . . . . . . . . . . . . . . . . . . .27

Connect Load Wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Fluorescent Load Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

ii Unison® DRd Rack Enclosure Installation Manual

3-wire Fluorescent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

2-wire Fluorescent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Connect Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

DRd Right I/O Data Terminations . . . . . . . . . . . . . . . . . . . . . . .33

Auxiliary Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

SmartLink™ / LinkPower (LON) Control Wiring . . . . . . . . . .34

UL 924 Listed Panic Input. . . . . . . . . . . . . . . . . . . . . . . . . . .35

DMX Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

DMX Input Wire Termination using the Screw Terminals Con-

nector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

DMX Input Wire Termination using the Insulation Displacement

Connector (IDC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

AX12X Cross-bussed Rack Interconnection. . . . . . . . . . . . .36

Terminate the Unison Options (URTO and UBPO) . . . . . . .36

Terminate DMX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

DRd Left I/O Data Termination . . . . . . . . . . . . . . . . . . . . . . . . .38

Connect to Serial RS-232 . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Connect to Ethernet RJ-45 . . . . . . . . . . . . . . . . . . . . . . . . . .38

Connect to Contact Inputs and Contact Outputs . . . . . . . . .39

Terminate Contact Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Terminate Contact Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Install Rack Options . . . . . . . . . . . . . . . . . . 40

Install Rack Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

DALI Option Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Install the DALI Option Kit. . . . . . . . . . . . . . . . . . . . . . . . . . .41

Connect DALI Option Wiring. . . . . . . . . . . . . . . . . . . . . . . . .43

Fluorescent Option Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Connect Fluorescent Option Wiring . . . . . . . . . . . . . . . . . . .45

Ride Thru Option Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Install the Ride Thru Option Kit. . . . . . . . . . . . . . . . . . . . . . .46

Connect Ride Thru Option Wiring . . . . . . . . . . . . . . . . . . . . .47

Battery Pack Option Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Install the Battery Pack Option Kit . . . . . . . . . . . . . . . . . . . .47

Final Installation and Power Up . . . . . . . . . 50

Checking the Rack Installation before Installing Modules . . . . . . . .51

Sealing Rack Air Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Final Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Control Bypass (Test Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Engage Module Retention Bar. . . . . . . . . . . . . . . . . . . . . . . . . .55

Modules Specification. . . . . . . . . . . . . . . . . 56

CE 230V Emergency Modules . . . . . . . . . . 58

About Emergency Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Wire Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Non Neutral Disconnect Racks . . . . . . . . . . . . . . . . . . . . . . .59

Neutral Disconnect Racks . . . . . . . . . . . . . . . . . . . . . . . . . .59

Introduction 1

Introduction

Welcome to the installation manual for Unison® DRd rack enclosures. This manual contains
the procedures for safe and efficient installation of your DRd rack enclosure and related
rack terminations.

Use this manual in conjunction with the Unison Auxiliary Rack Enclosure Installation
Manual when your DRd rack is to be installed with an adjoining auxiliary rack enclosure.

DRd Series Rack Enclosures

Series Voltage Notes

DRd6-12-120
DRd6-12-240
DRd6-12-230
DRd6-12-277

120/208 VAC
240/415 VAC
230/400 VAC CE Neutral Disconnect
277/480 VAC

6 module rack enclosure for up to 12 circuits.

DRd12-24-120
DRd12-24-240
DRd12-24-230
DRd12-24-277

120/208 VAC
240/415 VAC
230/400 VAC CE Neutral Disconnect
277/480 VAC

12 module rack enclosure for up to 24 circuits.

DRd12-48-120
DRd12-48-240
DRd12-48-277

120/208 VAC
240/415 VAC
277/480 VAC

Two 12 module rack enclosures for up to 48
circuits. DRd12-48 racks are cross-bussed using
the AX12X series main lug or main breaker
enclosure.

DRd6 rack

DRd12 rack

2 Unison® DRd Rack Enclosure Installation Manual

Warnings and Notice Conventions

These symbols are used throughout this installation manual to alert you to danger or
important information:

Contacting ETC

For questions about Unison system delivery, contact ETC Systems Group. For general
information, your most convenient resources are the references provided in this manual. To
search more widely try the ETC web site at www.etcconnect.com.

For technical questions about Unison systems, contact ETC Technical Services directly at
one of the offices listed below. Emergency service is available from all ETC offices outside
of normal business hours. When calling for assistance, please have the following
information handy:

• Your location and job name.

• A complete list of ETC equipment.

• A complete list of other installed products and components connected to the system
you are troubleshooting.

• DMX control source, if any.

Please email comments about this manual to: [e-mail]

Note:

Notes are helpful hints or information that is supplemental to the main text.

CAUTION:

A Caution statement indicates situations where there may be undefined or
unwanted consequences of an action, potential for data loss, or an equipment
problem.

WARNING:

A Warning statement indicates situations where damage may occur, people
may be harmed, or there are serious or dangerous consequences of an
action.

WARNING:

RISK OF ELECTRIC SHOCK! This warning statement indicates situations
where there is a risk of death by electric shock.

Americas

ETC International
Technical Services Department
3031 Pleasant View Road
Middleton, WI 53562
800-775-4382 (USA, toll-free)
[phone]
[e-mail]

United Kingdom

Electronic Theatre Controls, Ltd.
Technical Services Department
26 - 28 Victoria Industrial Estate
Victoria Road,
London W3 6UU, UK
[phone]
[e-mail]

Asia

ETC Asia, Ltd.
Technical Services Department
Room 1801, 18/F, Tower 1, Phase 1
Enterprise Square
9 Sheung Yuet Road
Kowloon Bay, Kowloon, Hong Kong
[phone]
[e-mail]

Germany

Electronic Theatre Controls, GmbH
Technical Services Department
Ohmstrasse 3
93607, Holzkirchen, Germany
[phone]
[e-mail]

Introduction 3

DRd Rack Components

Unison DRd racks are available in 6 or 12 module enclosures and are available for an input
voltage range of 85-300 VAC, 47-63 Hz. Racks are pre-wired and supplied with three
phase, 4 wire and ground, main lugs which are easily converted for split phase, 3 wire and
ground, operation without the need for additional materials.

DRd racks are available in 12, 24 and 48 circuit configurations.

DRd rack enclosures are supplied pre-wired for the specified voltage for your installation.
All rack enclosures operate at specified voltages within a frequency range of 47-63 Hz.
Phases within the rack enclosure may be bused together provided the maximum supplied
current does not exceed that of a three phase connection.

• 100 / 200 VAC, 47-63 Hz, 1Ø

• 100 / 173 VAC, 47-63 Hz, 3Ø

• 120 / 208 VAC, 47-63 Hz, 3Ø

• 120 / 240 VAC, 47-63 Hz, 1Ø

• 127 / 220 VAC, 47-63 Hz, 3Ø

• 230 / 400 VAC, 47-63 Hz, 3Ø CE with Neutral Disconnect

• 240 / 415 VAC, 47-63 Hz, 3Ø

• 277 / 480 VAC, 47-63 Hz, 3Ø

• Supports universal dimmer modules, fluorescent dimmer modules, constant circuit
breaker modules, relay modules, and reverse phase dimmer modules. Reference

“Modules Specification” , page 56 for a complete list of compatible modules.

• The DRd rack is controlled from either the SmartLink

®

Architectural Control Processor

(S-ACP) or the Paradigm™ Architectural Control Processor (P-ACP).

Note:

In 48-circuit configurations, two DRd12-24 rack enclosures are cross-bussed to an
AX12X series main lug or main circuit breaker auxiliary rack enclosure. A single
Architectural Control Processor (SmartLink ACP or Paradigm ACP) provides
control for both racks.

DRd6

DRd12

4 Unison® DRd Rack Enclosure Installation Manual

• The use of a station power module provides power nd control for architectural control
stations.

• Use a SmartLink station power module (S-SPM) in a DRd rack enclosure to provide

power for up to 16 SmartLink architectural control stations when used with the
SmartLink ACP.

• Use a Paradigm station power module (P-SPM) in a DRd rack enclosure to provide

power for up to 32 Unison architectural control stations when used with the
Paradigm ACP.

• The fluorescent option board (DRd-FLO) provides up to 24 outputs for control of 4-wire
(0-10 Vdc) fluorescent ballasts (up to 12 on a DRd6).

• The digital addressable lighting interface (DALI) option kit (DRd-DALI) controls 24
loops of 64 DALI compatible fluorescent ballasts in a broadcast mode.

• The Unison battery pack option kit (UBPO) provides power back-up to the Architectural
Control Processor in the rack for a period up to 90 minutes.

• The Unison ride through option kit (URTO) provides power to the Architectural Control
Processor in the rack for a limited time (up to 10 seconds) during brief power outages
or drop outs.

• All empty module spaces in a DRd rack enclosure must be filled with airflow module
(AFM) or blank modules (DRd-BM) for proper rack cooling.

• The DRd pedestal (DRd-PED) is a floor mounting stand for the DRd rack enclosure.

1 Prepare for Installation 5

Chapter 1

Prepare for Installation

Unpack and Inspect

Before you begin installation, check your shipment and confirm it arrived complete and
undamaged.

Step 1: Check the shipping container for physical damage.

Step 2: If you find damage, document it to help with a claim against your shipper.

Step 3: Unpack your order and check the contents against the packing list to be sure

your order is complete.

Step 4: If you discover a problem, call the ETC Systems Group the closest office of

purchase. See “Contacting ETC” on page 2.

Main Circuit Breaker Protection

Before you begin installing the Unison® rack enclosure, make sure you have installed a
main circuit breaker cabinet or other readily accessible input power disconnect device. In
certain bussed and cross-bussed systems, this disconnect device may be the Unison AX
series auxiliary rack with a main circuit breaker.

Using 90° Copper Wire

To comply with UL requirements:

Use Copper Conductors Only, the torque rating for each Non-Class 2 field-wire
connector, and “Use 90°C conductors at the 75°C Ampacities”, where readily visible in
the field wiring compartment; Class 2 adjacent to each Class 2, field-wiring connector.

Use only 90°C-rated copper wiring installed in accordance with all applicable local electrical
codes.

WARNING:

Rack enclosures installed without an accessible power disconnect device
cannot be serviced or operated safely. Follow all local codes and
restrictions.

Before removing dimmer or control modules for service, de-energize main
feed to dimmer rack and follow appropriate Lockout/Tagout procedures as
described in NFPA Standard 70E. It is important to note that electrical
equipment such as dimmer racks can present an arc flash safety hazard if
improperly serviced. This is due to available large short circuit currents on
the feeders of the equipment. Any work on energized equipment must
comply with OSHA Electrical Safe Working Practices.

CAUTION:

A two-wire circuit with separate hot and neutral conductors is required for every
branch circuit that will be connected to the DRd rack enclosure. Shared neutral
(multi-wire) branch circuit arrangements are not recommended for phase control
dimming systems due to harmonics and potentially elevated neutral currents in a
shared neutral arrangement.

For retrofit installations where shared neutral circuits are already installed, or track
lighting installations where the track has a shared neutral, consult ETC Technical
Services for installation guidelines.

6 Unison® DRd Rack Enclosure Installation Manual

Maximum Current Draw of Racks

Short Circuit Current Rating (SCCR)

Rack Type Phase Type

Maximum
Current Draw

Suggested
Breaker Rating

DRd6

Single Phase (1Ø) 120A 150A
Three Phase (3Ø) 80A 100A

AX6

Single Phase (1Ø)

120A

1

150A

3

Three Phase (3Ø)

80A

1

100A

3

DRd12

Single Phase (1Ø) 240A 300A
Three Phase (3Ø) 160A 200A

AX12

Single Phase (1Ø)

240A

1

300A

3

Three Phase (3Ø)

160A

1

200A

3

AX12X

Single Phase (1Ø)

480A

2

400A

4

Three Phase (3Ø)

320A

2

400A

3

Note:

1

Connected to DRd rack enclosure with a full complement of 20A modules.

2

Connected to two DRd rack enclosures with a full complement of 20A modules.

3

Installed in a main circuit breaker (MCB) model auxiliary rack.

4

Wire bending space limits the feed to the AX12X-MCB rack to 400A maximum.
ETC installs a 100% rated two pole breaker (or two poles from a three pole
breaker) in the AX12X-MCB, for a total deliverable current of 400A in a single
phase (split phase) configuration.

Rack Configuration

SCCR at

100-120

VAC

SCCR at

240 & 277

VAC

DRd6 22,000A 22,000A
DRd6 with AX6 rack (MCB) 100,000A 65,000A
DRd12 22,000A 22,000A
DRd12 with AX12 Main Lug rack 22,000A 22,000A
DRd12 with AX12X (cross-bussed) Main Lug rack 22,000A 22,000A
DRd12 with AX12 Main Circuit breaker 100,000A 65,000A
DRd12 with AX12X Main Circuit breaker 100,000A 65,000A

1 Prepare for Installation 7

Where to Install the Rack Enclosure

Unison DRd rack enclosures are designed to be surface mounted on load bearing walls in
an electrical closet or a room with restricted public access. It is recommended that you
install the rack at least 36” (915mm) off the floor surface to ensure clear view of the
Architectural Control Processor (S-ACP or P-ACP) for programming and operation.
Alternatively, DRd racks may install to a floor standing pedestal (model DRd-Ped).

Clearance Requirements

Unison dimmer racks require 12” (305mm) top clearance for proper airflow through the
cabinet. For sufficient door clearance, install the rack with at least 17” (432mm) of front
clearance and a 6” (152mm) clearance to the left of the door hinge from walls or other
equipment.

Rack Dimensions and Weights

Note:

Additional Unison® dimming and auxiliary racks of the same size are the exception
to the 6” (152mm) hinge side clearance rule. Unison racks are designed for side
by side use without issue.

Rack Type

Height Width Depth

Product

Weight

Shipping

Weight

inches mm inches mm inches mm lbs kgs lbs kgs

DRd6 rack

21.8 553 17 431 10 254 37.8 17.2 42 19.0

DRd12 rack

31 787 17 431 10 254 51 23.1 55 25

Note:

For module weight please reference Modules Specification, page 56.

305 mm

(12”)

152 mm

(6”)

432 mm

(17”)

914.4 mm
(36”)

8 Unison® DRd Rack Enclosure Installation Manual

Installation Environment Requirements

• For your own safety, install a main circuit breaker cabinet or other readily accessible
input power disconnect device in the same area as the Unison DRd rack enclosure. For
cross-bussed rack installations, this device may be the auxiliary rack. Main breakers
not in the same room must have a physical means to be locked off. ETC recommends
adopting lockout / tagout procedures for your facility and follow appropriate Lockout/
Tagout procedures as described in NFPA Standard 70E.

• A clean (not dusty) temperature-controlled environment with an ambient temperature
of 32-104°F / 0-40°C and ambient humidity of 10-90%, non-condensing.

• Restricted public access to prevent tampering.

• Soundproofing or performance area separation to muffle ventilation fan noise is
recommended.

• All CE equipment is tested to EMC category B environment.

Wire Routing and Specification

When planning wire entry into the rack, notice that conduit knockouts are provided only on
the sides of the unit. These knockouts are primarily used for bussing to an auxiliary rack but
may also be used for load or control wiring. Signal and power wiring must be run in separate
conduit per local code.

Due to the bend radii of certain size line feed wires and the location of terminations, special
attention is required for line feed wire entry. Reference the rack wiring guidelines below for
recommendations.

CAUTION:

HVAC systems must at all times maintain the specified ambient temperature at the
rack. Dimming systems operating within 10°F (5°C) of the upper or lower
temperature limits must strictly follow installation and operation guidelines to
operate reliably.

CAUTION:

Do not route line (input feed) wires through the back panel. Doing so requires bend
radii that violate NEC code, UL standards and because of undue stress at the wire
joint is likely to create a poor connection.

Line and load wire used with Unison rack enclosures must be copper. Load wires
may either be stranded (preferred) or solid core. The use of aluminum wire is not
allowed in DRd rack enclosures.

Aluminum feed wires are supported only in the auxiliary (AX Series) rack
enclosures.

100-127 VAC DRd Rack Enclosure

Wire Access

Location

Wire Size

DRd12 Feed

(max)

350 Kcmil

185mm

2

DRd6 Feed

(max)

2/0-3

70mm

2

Load Wires

12 - 6AWG

2.5 - 16mm

2

Control Wires

Top of rack

acceptable acceptable acceptable acceptable

Bottom of rack

acceptable acceptable acceptable preferred

Left side

Do Not Use Do Not Use acceptable acceptable

Right side

Do Not Use Do Not Use acceptable acceptable

0°

10°

20°

30°

40°

50°

60°

70°

80°

90°

100°

-18°

-10°

0°

10°

20°

30°

40°

1 Prepare for Installation 9

Control Specifications

The riser below is typical of a small Unison system utilizing SmartLink Architectural Control
Processors (S-ACP) for control and SmartLink architectural control stations for preset recall
and sequence activation. A DMX input into the DRd racks provide an additional level of
system control and integrates the architectural and theatrical lighting control systems.

Note:

Split phase applications require a simple field adjustment to the phase bussing.

See “Modify Phase Bus for 120 VAC Split Phase Operation” on page 19.

230 VAC DRd Rack Enclosure

Wire Access

Location

Wire Size

Feed (max)

350 Kcmil

185mm

2

DRd6 Feed

(max)

250 KCmil

120mm

2

Load Wires

12 - 6AWG

2.5 - 16mm

2

Control Wires

Top of rack

acceptable acceptable acceptable acceptable

Bottom of rack

acceptable acceptable acceptable preferred

Left side

Do Not Use Do Not Use acceptable acceptable

Right side

Do Not Use Do Not Use acceptable acceptable

240, 277 VAC DRd Rack Enclosure

Wire Access

Location

Wire Size

DRd12 Feed

(max) 250 Kcmil

120mm

2

DRd6 Feed

(max)

2/0-3

70mm

2

Load Wires

12 - 6AWG

2.5 - 16mm

2

Control Wires

Top of rack

acceptable acceptable acceptable acceptable

Bottom of rack

acceptable acceptable acceptable preferred

Left side

Do Not Use Do Not Use acceptable acceptable

Right side

Do Not Use Do Not Use acceptable acceptable

Note:

DRd rack enclosures are shipped with the lugs installed in a top feed orientation
by default. You may change the lug orientation to a bottom feed as needed.

To a ddi t i ona l

DRd rack

enclosures

SmartLink

& DMX

power

feed

power

feed

power

feed

To load circuits

LinkPower

DMX input
to DRd rack

ETC Console

(for optional stage lighting)

SmartLink

Preset 10

Preset 6

Preset 7

Preset 9

Preset 8

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 10

Preset 6

Preset 7

Preset 9

Preset 8

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 10

Preset 6

Preset 7

Preset 9

Preset 8

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 10

Preset 6

Preset 7

Preset 9

Preset 8

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Unison DRd12
rack enclosure

Unison DRd12
rack enclosure

Unison DRd12
rack enclosure

SmartLink stations

SmartLink

Astronomical

Timeclock

Congo jr
console

Back

Up

Enter

Recall
Preset

Hold

Down

10 Unison® DRd Rack Enclosure Installation Manual

The riser below is typical of a Unison system utilizing Paradigm Architectural Control
Processors (P-ACP) for control and Unison architectural control stations for user controls.
Paradigm systems provide a DMX input into the system for larger system integration and
control. A Paradigm system also utilizes Net3 networking for an additional level of system
wide control.

Control Wire Specification

The following table lists the recommended control wire types used in Unison DRd rack
installations and the maximum length (aggregate) of wire runs allowed.

Data Types and Topologies

LinkConnect with LinkPower

LinkConnect is the station communication bus from the Architectural Control Processor to
the stations. LinkConnect is based on Echelon

®

LonWorks™ with LinkPower bidirectional
protocol, and uses one pair of wires (data +, data -). You should pull an additional 14 AWG
(1.5mm

2

)wire for grounding when not installed in grounded metal conduit.

ETC uses two types of LinkConnect networks, for SmartLink and Paradigm systems. While
the wiring for LinkConnect in SmartLink and Paradigm systems are the same, the two
communication and control types are not interchangeable. SmartLink products are
compatible only with the SmartLink ACP, SmartLink station power module, and SmartLink
architectural control stations. Paradigm products are compatible only with the Paradigm
ACP, Paradigm station power modules, Unison Heritage architectural control stations, and
Paradigm touchscreens.

Throughout this manual LinkConnect is referred to by the protocol it uses, LinkPower.

Note:

DRd rack enclosures are shipped with the lugs installed in a top feed orientation
by default. You may change the lug orientation to a bottom feed as needed.

Purpose

LinkPower

(Belden 8471)

Aux 24 Vdc

(2)#16 AWG and

larger

DMX (Belden

9729)

Category 5 /

Belden 1583a

Feet Meter Feet Meter Feet Meter Feet Meter

Total length of control wire
(without repeater module)

1640 500 1500 457 1600 487 328 100

Maximum wire length
(station to station)

1312 400 1312 400 1600 487 N/A N/A

Maximum repeater distance

1640 500 1500 457 N/A N/A N/A N/A

To a ddi t i ona l

DRd rack

enclosures

DMX

thru

power

feed

power

feed

power

feed

To load circuits

LinkPower

Unison

DMX input
to DRd rack

ETC Console

(for optional stage lighting)

LinkPower

Aux Power 24 vdc

Preset 10

Preset 6

Preset 7

Preset 9

Preset 8

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 10

Preset 6

Preset 7

Preset 9

Preset 8

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Macro Record

Sequence

Preset 3

Preset 5

Preset 1

Preset 2

Preset 4

Macro Record

Sequence

Preset 3

Unison Paradigm

touchscreen LCD

Unison DRd12
rack enclosure

Unison DRd12
rack enclosure

Unison DRd12
rack enclosure

Congo
console

Unison Heritage stations

1 Prepare for Installation 11

LinkPower is topology-free and polarity independent, you can install your LinkPower data
runs in any desired combination of bus, loop, star, and home run. ETC recommends the
use of Belden 8471 (or approved equal) wire. The total combined length of a LinkPower
wire run cannot exceed 1,640 feet (500m) with a maximum distance of 1,312 feet (400m)
between any two devices.

Auxiliary 24 Vdc

Auxiliary power is required when you are installing powered Unison control stations. ETC
recommends using two 16 AWG stranded wires for 24 Vdc auxiliary power to the control
station(s). Auxiliary power is topology-free.

DMX (Digital Multiplex)

DMX can address up to 512 channels of control. DMX is installed in a daisy chain topology
and includes one pair of wires (data +, data -) plus an ISO ground. ETC recommends the
use of Belden 9729 (or approved equal) wire with a single end of line termination (90­150). For best DMX performance, twist the wires together as close to the pluggable
connector as possible.

Note:

Repeater modules may be used to extend the Unison LinkPower station data bus
an additional 1,640 feet (500m) total wire, with a maximum distance of 1,312 feet
(400m) between any two devices.

Note:

It is required that you terminate SmartLink / LinkPower station wiring and the
auxiliary power wiring in the rack with the station power module installed.

12 Unison® DRd Rack Enclosure Installation Manual

Chapter 2

Install Rack Enclosures

This chapter contains instructions for installation of the DRd rack enclosure.

This chapter contains the following sections:

• Mounting Individual DRd Rack Enclosures. . . . . . . . . . . . . . . . . . . . . . . 13

• Mounting a DRd Rack Enclosure on a Pedestal . . . . . . . . . . . . . . . . . . . 14

• Mounting Auxiliary and DRd Rack Enclosures Together . . . . . . . . . . .15

2 Install Rack Enclosures 13

Mounting Individual DRd Rack Enclosures

Unison DRd rack enclosures are designed to be surface mounted on load bearing walls in
an electrical closet or a room with restricted public access. Alternatively the DRd rack may
be mounted on a pedestal (DRd-Ped). It is recommended that rack enclosures installed on
the pedestal floor stand also be secured to the wall for greater stability.

Mounting Individual Racks on a Wall

The wall must be strong enough to hold the rack fully populated with modules, conduit and
wire. See “Rack Dimensions and Weights,” on page 7 and

“Modules Specification,” on page 56.

Step 1: Determine where your rack will be installed using the weight and dimension

requirements detailed in “Where to Install the Rack Enclosure,” page 7.

Step 2: Use the measured slot dimensions located in the graphic below to mark the hole

locations for the mounting hardware.

Step 3: Drill the holes and install the mounting hardware for each rack.

• Four 3/8” (M8-M10) bolts or screws 2-4” (50-100mm) long, and suitable
wall plugs are suggested mounting hardware (lag bolts recommended).

• Both the surface and the mounting hardware must support the weight of
the rack unit fully populated with modules.

• Expose at least 1” (25mm) of threads for mounting the rack.

Step 4: Attach the rack enclosure to the wall.

Step 5: Check that the rack is level and plumb and tighten the mounting hardware.

432 mm

17”

451 mm

17.75”

194mm

7.64”

113mm

4.45”

160mm

6.3”

432 mm

17”

184mm

7.25

194mm

7.64”

113mm

4.45”

160mm

6.3”

DRd12 rear panel

DRd6 rear panel

14 Unison® DRd Rack Enclosure Installation Manual

Mounting a DRd Rack Enclosure on a Pedestal

Step 3: Remove the eight screws and washers that secure the front panel to the unit.

Step 4: Position the floor stand on floor hardware previously placed for marking the

holes.

Step 5: Secure the pedestal base to the floor.

Step 6: Create conduit access in the bottom of the DRd rack. Notice the label inside the

bottom of the rack indicating the recommended locations for conduit access. Do
not create conduit access outside of the recommended locations.

Step 7: Position the DRd rack on the floor stand pedestal and align with the mounting

holes provided.

Step 8: Bolt the rack into place.

Step 9: Reinstall the front panel to the pedestal unit, replacing all hardware removed in

step 3.

The Unison DRd rack pedestal is designed with the same footprint as the Unison
dimmer rack. The acceptable conduit access in the bottom of the DRd rack overlaps the
floor stand access panel for contractor wiring and installation convenience. It is
recommended to secure a DRd rack installed on a pedestal to a wall for greater stability.

432mm

17”

186.7mm

7.35”

35.5mm

1.4”

35.5mm

1.4”

Step 1: Use the measured

dimensions in the
graphic (right) to mark
the hole locations for the
floor mounting hardware.

Step 2: Drill holes for floor

mounting hardware.

2 Install Rack Enclosures 15

Mounting Auxiliary and DRd Rack Enclosures Together

Unison DRd and AX auxiliary rack enclosures are designed to be surface mounted on load
bearing walls in an electrical closet or a room with restricted public access. One DRd rack
may be bussed to the AX series auxiliary rack, which may contain a main circuit breaker
(MCB) or a main lug (ML) for power distribution to the adjacent DRd12 rack. Two DRd12
racks may be cross-bussed to an AX12X auxiliary rack which is designed to provide main
lug or main breaker input feed termination to the adjacent DRd12 racks.

The wall must be strong enough to hold all racks fully populated with modules, conduit and
wire. Reference “Where to Install the Rack Enclosure,” page 7 for weight, dimension and
clearance requirements.

Step 1: Determine where the enclosures will be installed using the weight and dimension

requirements detailed in “Where to Install the Rack Enclosure,” page 7.

Step 2: Use the measured slot dimensions located in the graphics below to mark the hole

locations for the mounting hardware.

Step 3: Drill the holes and install the mounting hardware for each rack enclosure.

• Four 3/8” (M8-M10) bolts or screws 2-4” (50-100mm) long, and suitable
wall plugs are suggested mounting hardware per rack enclosure (lag bolts
recommended).

• Both the surface and the mounting hardware must support the weight of
the enclosures fully populated with modules.

• Expose at least 1” (25mm) of threads for mounting the rack.

Step 4: Remove the conduit knockouts from the mating side conduit plugs on the DRd

and auxiliary rack enclosures before installation. Only remove the knockouts that
are adjacent to another rack.

Step 5: Install the DRd rack first (follow instructions as outlined in “Mounting Individual

Racks on a Wall,” on page 13. Remember to install the DRd rack enclosure to

either side of the auxiliary rack in cross-bussed applications.

Step 6: Align the auxiliary rack against the DRd rack enclosure and mount it to the

previously installed hardware. Keyholes in the DRd and auxiliary rack enclosures
are aligned with each other for mounting to Unistrut or Kindorf. With conduit holes
mated, the bolt spacings are on 16” (406mm) centers (top left DRd and top left
Ax rack) for installation convenience.

432mm

17”

451mm

17.75”

194mm

7.64”

113mm

4.45”

160mm

6.3”

432mm

17”

62mm

2.44”

787mm

31”

406mm

16”

406mm

16”

330mm

13”

559mm

22”

559mm

22”

DRd12-48 rear panel view

16 Unison® DRd Rack Enclosure Installation Manual

Step 7: Install the ETC supplied 2 1/2” (64mm) nylon insulated chase nipple and 2 1/2”

(64mm) locknut between the auxiliary and DRd rack enclosures.

Step 8: For cross-bussed DRd12-24 rack installations, install the second DRd12-24 by

following steps 4 through 7 above.

Step 9: Check that each rack is level and plumb then tighten the mounting hardware for

a secure installation.

Note:

Reference the related Auxiliary Rack Enclosure Installation Manual to complete
the auxiliary rack installation and for DRd12-24 and DRd 12-48 rack input power
bus wiring termination.

Follow the instructions in this manual for all other DRd rack enclosure installation
procedures.