ETC OneTrack by ETC Technical manual

OneTrack by ETC and
OneTrack Backbone System
Planning and Installation Manual
Part Number: 7076M2100 Rev: A
Released: 2023-06

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Table of Contents
Table of Contents i
Introduction 1
About OneTrack by ETC 1
About OneTrack Backbone 2
Data 2
Electrical Load Capacity 2
Document Conventions 3
Help from ETC Technical Services 4
Safety 5
Planning 7
Planning the Track Layout 7
Planning the Installation 7
Electrical Requirements 8
Key Line 8
Suspended Physical Load Capacity 10
DMX Data Path 11
Preparing for Installation 15
Cutting Track 15
Installation Methods 16
Surface Mounting (OneTrack Only) 19
Cable Mounting (OneTrack Only) 20
Threaded Rod Mounting 20
Other Mounting Options (OneTrack Backbone Only) 20
End of Track 21
Reconfiguring DMX Data Lines 22

Installation 26
Tools Required 26
Installing End Feeds 27
Installing Current Limiters 29
Powering On the Track 29
Troubleshooting 30
Loss of Power 30
Data Issues 31
Parts and Accessories 32
OneTrack 32
OneTrack Accessories 33
End Feed 33
I-coupler 34
L-coupler 35
T-coupler 36
X-coupler 37
Flex Coupler 38
Electrical Straight Coupler 39
End Cap 40
Canopy Cover 41
Universal Adapter 42
DMXTerminator 43
OneTrack Mounting Accessories 44
Two-inch Pendant Clip 44
Four-inch Pendant Clip 45
Five-inch Support Feed Kit 46
Five-inch Support Kit 47
T-bar Mounting Clip 48
OneTrack Current Limiters 49
End Feed with Overcurrent Device 49
I-coupler with Overcurrent Device 50
Overcurrent Device 51
ii OneTrack and OneTrack Backbone Planning and Installation Manual

OneTrack Backbone Accessories 52
End Feed Housing 52
I-coupler Housing with Pull Box 53
L-coupler Housing 54
L-coupler Housing with Pull Box 55
T-coupler Housing 56
T-coupler Housing with Pull Box 57
X-coupler Housing 58
X-coupler Housing with Pull Box 59
Straight Locking Joint 60
Backbone End Cap 61
Fixture Hanger 62
Fixture Hanger for Emergency Lighting 63
Pigtail Adapter 64
Table of Contents iii

iv OneTrack and OneTrack Backbone Planning and Installation Manual

Introduction 1
Introduction
About OneTrack by ETC
The OneTrack by ETC system provides two independently controlled power circuits with an
integrated DMX/RDM data bus in a professional-grade aluminum extrusion. OneTrack can be
used with phase-dimmed and low-voltage controlled luminaires.
OneTrack easily blends into its surroundings, providing power and data reliably and discretely.
It's the solution for a variety of applications, including art galleries, museums, retail displays,
lobbies, comedy clubs, nightclubs, and hotel ballrooms.
The OneTrack by ETC system includes an extensive selection of adapters, feeds, end caps,
couplers, hanging accessories, and other accessories to meet most installation requirements.
OneTrack supports:
• Two 20 A circuits with separate neutrals
• Up to 32 DMX devices per data run
• Up to 20 RDM devices per data run
• Cable mounting, threaded rod mounting, or surface mounting, including vertical or
horizontal wall mounting (recessed mounting also available; contact your local ETC
representative for more information)
• 3A, 5A, 8A, and 12A current-limiting breakers located directly at the track
• Supports up to 55 lb (25 kg) of attached luminaires when support on 3 ft (900 mm)
centers, or 110 lb (50 kg) when support on 18 in (450 mm) centers
• Two-year warranty
• White and black finishes
• 4 ft, 8 ft, and 12 ft (1.21 m, 2.43 m, and 3.65 m) sections that can be field-cut to custom
lengths as required
Note: OneTrack by ETC utilizes components from the A.A.G. Stucchi ONETRACK®
UL line of products. For additional components outside of the OneTrack by
ETCoffering, visit www.aagstucchi.it.

2 OneTrack and OneTrack Backbone Planning and Installation Manual
About OneTrack Backbone
OneTrack Backbone provides a robust track solution when larger fixtures are required. With
OneTrack Backbone, an aluminum housing encloses OneTrack by ETC system hardware,
providing additional strength and more robust structural attachment. A steel fixture hanger
combined with a pigtail adapter allows you to use larger, theatrical lighting fixtures in addition
to traditional track fixtures with OneTrack.
In addition to the OneTrack features described above, OneTrack Backbone offers:
• Threaded rod mounting, mounting directly to structural beams using beam clamps, or
mounting to other U-channel products using standard hardware
• Increased maximum distance between suspension points to 10 ft (3 m)
• Increased physical load capacity to 250 lb (127 kg) over 10 ft (3 m); see Suspended
Physical Load Capacity on page 10 for load capacity details
• White, black, and silver powder-coated finishes
Data
OneTrack and OneTrack Backbone provide integrated wiring for DMX-512A (ANSI E.1.11) and
bidirectional RDM (ANSI E1.20-2010) control signals. The electrical specifications of these
DMX512A and RDM standards are based on ANSI/TIA/EIA-485-A-1998.
DMX512A standards require a continuous daisy-chain data-link topology with a terminating
switch or resistor with a value of 100–120 ohms to eliminate ringing and signal reflection. No
T-junctions, Y-taps, or loops are permitted.
Wire used for bringing the DMX signal into the track system must be Belden 9729 (or
equivalent 24AWG 2pair+shield) with shield connected to ground at one end, preferably the
signal source.
Electrical Load Capacity
OneTrack and OneTrack Backbone distribute one or two 120V circuits, up to 16A on a 20A
circuit. Each circuit has an independent neutral for individual control and a common ground.
• Maximum Feed: 2x20A branch circuits
• Maximum Load: 2x16A (2x1920W at 120V)
• Supply Wiring: 12AWG feed wires (120V)
The OneTrack Backbone pigtail adapters have an electrical load capacity of 300W (120V
supply).

Introduction 3
Document Conventions
This document uses the following conventions to draw your attention to important
information.
Note: Notes are helpful hints and 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 electric shock.
All ETC documents are available for free download from our website: etcconnect.com.
Please email comments about this manual to: [e-mail].

4 OneTrack and OneTrack Backbone Planning and Installation Manual
Help from ETC Technical Services
If you have questions that are not answered by this document, try the ETC support website at
support.etcconnect.com or the main ETC website at etcconnect.com. If none of these
resources are sufficient, contact ETC Technical Services directly at one of the offices identified
below. Emergency service is available from all ETC offices outside of normal business hours.
Please have the following information handy:
• Product model
• Other components in your system (luminaires connected, control source, etc.)
ETC, Inc.
Americas
Technical Services Department
3031 Pleasant View Road
Middleton, WI 53562
800-775-4382 (USA, toll-free)
[phone]
[e-mail]
ETC GmbH
Germany, Austria, Switzerland,
Eastern Europe, and Russia
Technical Services Department
Ohmstrasse 3
83607 Holzkirchen, Germany
[phone]
[e-mail]
ETC Austin
High End Systems Products
Technical Services Department
2105 Gracy Farms Lane
Austin, TX 78758 USA
800-890-8989 (USA, toll-free)
[phone]
[e-mail]
ETC France
France
Zone Urbaparc -
Bâtiment E
6 Boulevard de la Libération
Saint-Denis, 93200
[phone]
[e-mail]
ETC Ltd
Europe, Middle East, and Africa
Technical Services Department
26-28 Victoria Industrial Estate
Victoria Road,
London W3 6UU England
[phone]
[e-mail]
ETCAsia
Asia
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]

Introduction 5
Safety
Read and save these instructions before installing OneTrack, and refer to them when making
additions to or changes in the OneTrack configuration.
WARNING: RISK OF ELECTRIC SHOCK! Always disconnect electrical power
before installation or maintenance of track or track components.
AVERTISSEMENT : RISQUE DE CHOC ÉLECTRIQUE! Débranchez toujours
l'alimentation électrique avant de procéder à l'installation ou à l'entretien du
rail ou de ses composants.
WARNING: RISK OF ELECTRIC SHOCK! When working on electrical systems,
turn off the breakers that are powering the track as well as the wall
switches. Wall switches can be accidentally turned back on while you are
working.
AVERTISSEMENT : RISQUE DE CHOC ÉLECTRIQUE! Lorsque vous travaillez
sur des systèmes électriques, éteignez les disjoncteurs qui alimentent le rail
ainsi que les interrupteurs muraux. Les interrupteurs muraux peuvent être
accidentellement réactivés pendant que vous travaillez.
WARNING: RISK OF ELECTRIC SHOCK! Do not drill through the sides of the
track. When surface mounting, ensure that the top of the track (opposite the
opening) is mounted to the mounting surface. Do not mount the track sides
to a mounting surface.
AVERTISSEMENT : RISQUE DE CHOC ÉLECTRIQUE! Ne percez pas les côtés
du rail. En cas de montage en surface, veillez à ce que la partie supérieure du
rail (opposée à l'ouverture) soit montée sur la surface de montage. Ne
montez pas les côtés du rail sur une surface de montage.
WARNING: RISK OF ELECTRIC SHOCK! Cover the ends of OneTrack and
OneTrack Backbone with end caps.
AVERTISSEMENT : RISQUE DE CHOC ELECTRIQUE! Couvrez les extrémités
du OneTrack et du OneTrack Backbone avec des embouts.
WARNING:
• Per NEC article 410.151(C), do not install any part of this track system
less than 1.5m (5ft) above the floor.
• Per NEC article 410.151(A), lighting track fittings shall not be equipped
with general purpose receptacles. Do not attempt to connect power
tools, extension cords, appliances, or similar devices to the track. Only
install lighting track fixtures and fittings in the track.
• The track system is to be supplied by up to two branch circuits.
• Track does not support mounting by electrical cable.
• Follow fixture manufacturer guidelines to keep fixtures away from
curtains or similar combustible materials.

6 OneTrack and OneTrack Backbone Planning and Installation Manual
AVERTISSEMENT :
• Conformément à l'article 410.151(C) du NEC, n'installez aucune partie de
ce système de rails à moins de 1,5 m (5 ft) au-dessus du sol.
• Conformément à l'article 410.151(A) du NEC, les rails d'éclairage ne
doivent pas être équipés de prises à usage général. N'essayez pas de
brancher des outils électriques, des rallonges, des appareils ou des
dispositifs similaires sur le rail. N'installez les appareils et les raccords
des rails d'éclairage que dans le rail.
• Le système de rail doit être alimenté par un maximum de deux circuits
de dérivation.
• Le rail ne permet pas le montage par câble électrique.
• Suivez les instructions du fabricant du projecteur pour éloigner les
luminaires des rideaux ou d'autres matériaux inflammables similaires.
CAUTION:
• For indoor use only. Do not use in wet or damp locations.
• Do not install track where concealed or extended through walls or
partitions.
• OneTrack and OneTrack Backbone are to be installed by qualified
personnel only.
• Electrical installation must be performed by a qualified electrician in
accordance with local electrical codes and permitting procedures.
• It is the responsibility of the installer to ensure the electrical, mechanical
and thermal compatibility of the track system and the fittings.
• It is the responsibility of the installer to provide suitable hardware for
attaching track to the building structure and to ensure that the structure
is sufficient for the load of the track system and attached fixtures.
• All hardware for attaching wire rope or threaded rod to appropriate
building structure is the responsibility of the installing contractor.
• Unauthorized modification of OneTrack or OneTrack components may
void ETC warranty.
• Do not use solvent, glue, oil, grease, or cleaner on any OneTrack
components.
• Material used for surface mounting must conform to building
regulations.
• Do not slide track adapters when moving fixtures. Fixtures should be
fully removed from the track, relocated, and then properly re-attached.

Planning 7
Planning
Planning the Track Layout
Consider the following elements as you plan your OneTrack or OneTrack Backbone track
layout:
•Track orientation: Each piece of track has a top and a bottom. The top of the track is
oriented to the mounting surface, and the bottom is oriented toward the fixtures.
•Conduit entry points: Each piece has limited available conduit knockouts.
•Data paths and termination locations: Plan the DMX data paths before installation.
DMX data paths must be contiguous daisy chains with terminations. T-junctions, Y-taps,
and loops are not permitted and will result in faulty performance of DMX fixtures.
•Coupler and track connections: Couplers will only fit into the track in one orientation.
This is important to keep in mind when purchasing couplers so that the couplers are
oriented correctly for the track layout.
See Parts and Accessories on page 32 for a list of available OneTrack and OneTrack Backbone
parts.
Top
(mounting side)
Bottom
(fixture side)
Figure 1: Track orientation
L1
D-
N1 N2
D+
L2
Figure 2: Coupler and track connections
Planning the Installation
Consider the following elements as you plan your OneTrack or OneTrack Backbone
installation:
• Electrical Requirements
• Key Line
• Suspended Physical Load Capacity
• DMX Data Path

8 OneTrack and OneTrack Backbone Planning and Installation Manual
Electrical Requirements
CAUTION: Electrical installation must be performed by a qualified
electrician in accordance with local electrical codes and permitting
procedures.
• Maximum Feed: 2 x 20 A branch circuits
• Maximum Load: 2 x 16 A (2 x 1920 W at 120 V)
• Supply Wiring: 12 AWG (4mm2) feed wires (120 V)
Key Line
Couplers only fit into track in one orientation, creating a "key line" in which the raised key of
the coupler fits into the channel on the track.
Key
Figure 3: The "key" on the coupler fits into the track in one orientation
Consider the following information when planning the key line:
• Couplers will only fit into the track in one orientation. This is important to keep in mind
when purchasing couplers so that the couplers are oriented correctly for the track layout.
(See Figure 3 below.)
• When planning for the locations of end feeds, be aware that DMX and power cannot be
wired into the same end feed. Install separate end feeds for DMX and power.
• When planning for the locations of mid feeds, ETC recommends that you use mid feeds
to provide power to the track, not DMX. (Using a mid feed to provide data creates a T-
junction, which is disallowed.)
X
Figure 4: Couplers fit into track in one orientation

Planning 9
The following illustrations show examples of track layouts. These drawings are plan views,
showing the track system as if you were looking at it from above.
L-coupler
L-couplerL-coupler
L-coupler
Coupler
location TrackKEY:
Figure 5: Simple system
L-coupler
L-couplerL-coupler
L-coupler
T-coupler T-coupler
T-couplerT-coupler
Figure 6: Advanced system
T-coupler
L-coupler L-coupler
L-couplerL-coupler
T-coupler
T-coupler
T-coupler
T-couplerT-coupler
X-coupler X-coupler
Figure 7: Complex system

10 OneTrack and OneTrack Backbone Planning and Installation Manual
Suspended Physical Load Capacity
The maximum weight that the track can support per linear foot varies based on the distance
between mounting points. The following examples represent the maximum supported physical
load based on various distances between mounting points. The distance shown at the top of
each illustration is the distance between mounting points. The bottom of each illustration
shows supported loads.
OneTrack
3 ft max
(0.9 m)
1.5 ft
(0.46 m)
8 ft max
(2.4 m)
55 lb (25 kg) 110 lb (50 kg)
22.5 lb (10.2 kg)
1.5 ft
(0.46 m)
Figure 8: OneTrack suspended physical load capacity
OneTrack Backbone
When using track-mounted fixtures on OneTrack Backbone, the load capacity is the same as
OneTrack.
When using non-track fixtures mounted with OneTrack Backbone fixture hangers (see Fixture
Hanger on page 62 ) on OneTrack Backbone, the rated load is dependent on the span. Use the
table below to determine rated load and deflection for a given span.
Span
Fixture centers
Fixture weight
Figure 9: OneTrack Backbone suspended physical load capacity for non-track fixtures
Span Maximum distributedload Maximum point load Maximum deflectionat center
2 ft (0.6 m) 800 lb (360 kg) 100 lb (45 kg)* < 0.05 in (0.1 cm)
3 ft (0.9 m) 685 lb (310 kg) 100 lb (45 kg)* < 0.05 in (0.1 cm)
4 ft (1.2 m) 590 lb (265 kg) 100 lb (45 kg)* 0.075 in (0.2 cm)
5 ft (1.5 m) 510 lb (230 kg) 100 lb (45 kg)* 0.125 in (0.3 cm)
6 ft (1.8 m) 435 lb (195 kg) 100 lb (45 kg)* 0.15 in (0.4 cm)
7 ft (2.1 m) 375 lb (170 kg) 75 lb (34 kg) 0.175 in (0.4 cm)
8 ft (2.4 m) 325 lb (145 kg) 50 lb (23 kg) 0.2 in (0.5 cm)
9 ft (2.7 m) 280 lb (125 kg) 40 lb (18 kg) 0.225 in (0.6 cm)
10 ft (3.1 m) 250 lb (90 kg) 35 lb (16 kg) 0.25 in (0.6 cm)
> 10 ft (3.1m) Not recommended
Calculations are based on a distance between fixture centers of 18 in (46 cm).
* Weight limited by clamp capacity

Planning 11
DMX Data Path
CAUTION: Data transmission will become unreliable if the DMX signal path
is not configured according to ANSI E1.11 - USITT DMX512(A).
CAUTION: ETC recommends laying out the DMX data path for your track
configuration BEFORE ordering all track and couplers to ensure that no loops,
T-junctions, or Y-taps are created that would disrupt data transmission.
Consider the following information when planning the DMXdata path:
• The DMX data line is only for low voltage with an approximate value of 50 V, 2 A
maximum.
• If X-couplers are required in your system, you must disconnect one or more data-line
connections to avoid data loops. See Reconfiguring DMX Data Lines on page 22 .
• If L-couplers or T-couplers are required in your system, you may need to disconnect one
or more data-line connections to avoid data loops. See Reconfiguring DMX Data Lines on
page 22 .
• When planning for the locations of end feeds, be aware that DMX and power cannot be
wired into the same end feed. Install separate end feeds for DMX and power.
• When planning for the locations of mid feeds, ETC recommends that you use mid feeds
to provide power to the track, not DMX. (Using a mid feed to provide data creates a T-
junction, which is disallowed.)
The following illustrations show examples of DMX data paths. These drawings are plan views,
showing the track system as if you were looking at it from above.
If you have additional DMX termination questions, please contact your local ETC
representative.
For more information on DMX, visit the ETC website: etcconnect.com/AboutDMX.
DMX IN
DMX
TERM
start DMX
terminator data coupler
location track
L-coupler
L-coupler
L-coupler
Key:
Figure 10: Simple DMX system

12 OneTrack and OneTrack Backbone Planning and Installation Manual
DMX IN
DMX “dead zone” or
second DMX input and
terminator required
DMX TERM
L-coupler
L-coupler L-coupler
L-coupler
T-couplerT-coupler
T-couplerT-coupler
start DMX
terminator data coupler
location track
Key: coupler wiring
requires modification
(see note below)
Figure 11: Advanced DMXsystem
Note: You must disconnect some coupler wiring (in couplers indicated with a star in
the example above) for the data line to function as shown. See Reconfiguring DMX
Data Lines on page 22 for more information.

Planning 13
T-coupler
T-coupler
T-coupler T-coupler
T-coupler
L-coupler
L-coupler
T-coupler
X-couplerX-coupler
L-coupler
L-coupler
X-coupler
D2
D3
D1
start DMX
terminator data coupler
location track
Key: coupler wiring
requires modification
(see note below)
Figure 12: Complex DMX system
Note: In the example above, individual DMX data lines would begin at the T-coupler
for D1 and at mid feeds for D2 and D3. Each data line (D1, D2, D3) would require
separate DMX terminators. You must disconnect some coupler wiring (in couplers
indicated with a star in the example above) for the data line to function as shown. See
Reconfiguring DMX Data Lines on page 22 for more information.

14 OneTrack and OneTrack Backbone Planning and Installation Manual
T-coupler
T-coupler
T-coupler T-coupler
T-coupler
L-coupler
L-coupler
T-coupler X-couplerX-coupler
L-coupler
L-coupler
Wireless
transmitter
data coupler
location track
Key:
Figure 13: Multiverse®wireless DMX system
Note: In the example above, OneTrack Backbone powers fixtures that are equipped
with Multiverse wireless receivers, dramatically simplifying the design process. For
more information about Multiverse wireless, contact your local ETC representative.