ERn Rack Mount Enclosure
Installation Manual
Revision B
Copyright © Electronic Theatre Controls, Inc.
All Rights reserved.
Product information and specifications subject to change.
Part Number:
7180M2110
Released: 2012-08
Rev B
ETC®, Unison®, EDMX™ are either registered trademarks or trademarks of Electronic Theatre Controls, Inc. in
the United States and other countries.
Echelon®, LON®, LONW
ORKS
®
are registered trademarks of 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
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1
ERn Modules and Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warnings and Notice Conventions . . . . . . . . . . . . . . . . . . . . . . .4
Contacting ETC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Prepare for Installation . . . . . . . . . . . . . . . . .5
Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Unpack and Inspect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Main Circuit Breaker Protection . . . . . . . . . . . . . . . . . . . . . . . . . .6
Lockout/Tagout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
General Lockout/Tagout Procedures: . . . . . . . . . . . . . . . . . . . .6
Maximum Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Rack Mounting Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Dimensions and Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Installation Environment Requirements . . . . . . . . . . . . . . . . . . . .8
Wire Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Wire Routing and Specification . . . . . . . . . . . . . . . . . . . . . . . . . .9
Control Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Data Types and Topologies . . . . . . . . . . . . . . . . . . . . . . . . .10
DMX (Digital Multiplex) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Auxiliary 24 Vdc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Install Enclosure . . . . . . . . . . . . . . . . . . . . . 11
Install in a 19” Equipment Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Connect Wiring . . . . . . . . . . . . . . . . . . . . . . 13
IEC Power Input Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
ERn Rack Mount Enclosure Power Input . . . . . . . . . . . . . . .14
Connect Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Connect Rear Panel I/O Data Terminations . . . . . . . . . . . . . . .15
Terminate DMX Control Wiring . . . . . . . . . . . . . . . . . . . . . . .15
DMX Input Termination: Screw Terminals Connector. . . . . . .15
DMX Input/Output Termination: Insulation Displacement Con-
nectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Terminate LinkPower (LON®) Control Wiring . . . . . . . . . . . .16
Terminate Auxiliary Power . . . . . . . . . . . . . . . . . . . . . . . . . .17
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Connect to Serial RS-232 . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Connect to Ethernet RJ-45 . . . . . . . . . . . . . . . . . . . . . . . . . .18
Connect to Contact Inputs and Contact Outputs . . . . . . . . .19
Terminate Contact Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Terminate Contact Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Right I/O Board Terminations . . . . . . . . . . . . . . . . . . . . . . . . . .20
Terminate DMX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Table of Contents i
Install Rack Options . . . . . . . . . . . . . . . . . . 21
Rack Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Install the Ride Thru Option (URTO) Kit . . . . . . . . . . . . . . . . . .22
Connect Ride Thru Option Wiring . . . . . . . . . . . . . . . . . . . . .23
Install a Paradigm Repeater or Dual Repeater Module. . . . . . .24
Terminate LinkPower (LON
Terminate Auxiliary Power . . . . . . . . . . . . . . . . . . . . . . . . . .26
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Install Redundant Power Supply . . . . . . . . . . . . . . . . . . . . . . . .28
Status Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
®
) Control Wiring . . . . . . . . . . . .25
Final Installation and Power Up . . . . . . . . . 29
Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Check Main Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Putting the Rack Back Together . . . . . . . . . . . . . . . . . . . . . . . .30
Aux Power and LinkPower Status Indicators . . . . . . . . . . . . . . .30
Final Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
ii Unison® ERn Rack Mount Enclosure Installation Manual
Introduction
ERn2-RM
ERn4-RM
Welcome to the installation manual for the Unison® ERn rack mount external processing
enclosure. This manual contains the procedures for safe and efficient installation of ERn
series processing racks, including wire termination and option kit installation.
The ERn enclosure is available in two sizes, ERn2 and ERn4, which can be supplied for
surface mounting on a wall (reference the Unison ERn Wall Mount Enclosure Installation
Manual) or with rack mounting brackets for installation in a standard 19” equipment rack.
The ERn is available in three voltage options, 120, 230, and 240 VAC to meet your
installation requirements.
The ERn provides Unison architectural control to distributed Unison, Sensor3, or other
DMX512 dimming systems. Used stand alone or in multi-processor network systems, the
ERn series enclosure offers elegant low-profile rack mounting, integrated back-lit control
electronics, and the ultimate in architectural lighting control versatility.
The ERn2 enclosure provides two module slots, one slot for the Paradigm architectural
control processor (P-ACP) and one for use of the Paradigm station power module (P-SPM)
or a blank (air flow) module (ERn-BM). The accessory tray in the bottom of the enclosure
can be used for either an optional redundant rack power supply (ERn-RPS) or blank option
module.
The ERn4 enclosure provides four module slots, two slots which can be used for Paradigm
architectural control processor’s (P-ACP) and an additional two slots for use of option
modules such as the Paradigm station power module (P-SPM) or a Paradigm repeater
module (P-REP). Alternatively, the top two slots in the enclosure may be used for a dual
paradigm repeater module (P-DREP).The accessory tray in the bottom of the enclosure
can be used for either an optional redundant rack power supply (ERn-RPS) or the blank
option module.
Model Voltage / Frequency Notes
ERn2-RM-120 85-120 VAC, 47-63 Hz (single phase) External processing rack configured for 19”
ERn2-RM-230CE 180-265 VAC, 47-63Hz (single phase)
ERn2-RM-240 180-265 VAC, 47-63 Hz (single phase)
ERn4-RM-120 85-120 VAC, 47-63 Hz (single phase) External processing rack configured for 19”
ERn4-RM-230CE 180-265 VAC, 47-63Hz (single phase)
Rack Mount
ERn4-RM-240 180-265 VAC, 47-63 Hz (single phase)
rack mounting utilizing 5 rack units (or 5U) of
rack space. Use with one Paradigm
architectural control processor (ACP) and one
option module.
rack mounting utilizing 9 rack units (or 9U) of
rack space. Use with up to two Paradigm
architectural control processors (ACP) and up
to two option modules.
Introduction 1
ERn Modules and Options
P-ACP
P-SPM
P-REP
P-DREP
ERn-RPS
URTO
ERn-BM
Model
P ACP 7180A1001 Paradigm
P-SPM 7182A1001 Paradigm Station
Part
Number
Description Notes
The Paradigm ACP provides powerful and flexible control for
Architectural Control
Processor
Power Module
architectural and theatrical applications with straightforward
integrated networking for both NetConnect and LinkConnect
networks.
• Tool-free installation into the ERn enclosure. Up to two
Paradigm ACPs may be installed in the ERn4 enclosure.
• Features an easy to navigate user interface which is usable
with the door attached.
• Supports up to 62 Unison control stations over the LonWorks
network with the use of Paradigm station power and repeater
modules.
• Provides two ports of one DMX universe each (512 addresses
each), individually switchable between input and output.
The Paradigm SPM provides power for Unison control stations
over the LinkPower network and provides the station data bus
length up to 1,640 feet (500m).
• Tool-free installation into an ERn enclosure.
• Supplies LinkPower for up to 32 Unison control stations.
P-REP 7182A1003 Paradigm Station
Repeater Module
ERn-BM 7180A1402 Airflow Option Module The ERn BM is used to fill empty module space in the ERn series
P-DREP 7182A1004 Paradigm Dual Station
Repeater Module
The Paradigm REP module extends the system station bus length
1,640 feet (500m) and increases the possible station count by an
additional 30 stations. For use only in an ERn4 enclosure.
• Tool-free installation into an ERn4 enclosure.
• For use in an ERn4 enclosure only.
enclosure, maintaining the convection cooled design.
• Tool-free installation into an ERn enclosure.
The Paradigm DREP module extends the system station bus
length 3,280 feet (1,000m) through two separate topology-free
Echelon segments, each supporting 1,640 feet (500m).
• Tool-free installation into and ERn4 enclosure.
• The dual repeater module also adds support for up to 30
additional Unison architectural control stations.
• For use in an ERn4 enclosure only.
2 Unison® ERn Rack Mount Enclosure Installation Manual
URTO 7180A1410 Unison Ride Thru
Option Kit
ERn-RPS 7180A1401 ERn Redundant
Power Supply
The URTO kit provides power for one Paradigm architectural
control processor in the host enclosure for a limited time (minimum
of 12 seconds) during brief power outages or drop outs.
• If installed in an ERn4 enclosure, one URTO is required per
Paradigm ACP.
The ERn RPS provides an additional rack power supply that
powers the ERn enclosure if the primary rack power supply fails.
Note:
The redundant power supply (ERn-RPS) is not supported in ERn4 enclosures at
230 VAC. Instead the ERn4 at 230 VAC is shipped from the factory with a rack
power supply installed in the top (normal) position and in the lower option module
slot as standard.
Introduction 3
Warnings and Notice Conventions
These symbols are used in ETC documentation to alert you to danger or important
information:
Note:
CAUTION:
Notes are helpful hints and information that is supplemental to the main text.
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.
Contacting ETC
For questions about Unison rack 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 rack 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.
Americas
ETC International
Technical Services Department
3031 Pleasant View Road
Middleton, WI 53562
800-775-4382 (USA, toll-free)
+1-608 831-4116
service@etcconnect.com
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
+852 2799 1220
service@etcasia.com
United Kingdom
Electronic Theatre Controls, Ltd.
Technical Services Department
26 - 28 Victoria Industrial Estate
Victoria Road,
London W3 6UU, UK
+44 (0)20 8896 1000
service@etceurope.com
Germany
Electronic Theatre Controls, GmbH
Technical Services Department
Ohmstrasse 3
93607, Holzkirchen, Germany
+49 (80 24) 47 00-0
techserv-hoki@etcconnect.com
Please email comments about this manual to: TechComm@etcconnect.com
4 Unison® ERn Rack Mount Enclosure Installation Manual
Chapter 1
Prepare for Installation
This chapter contains the following sections:
• Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
• Rack Mounting Specifications . . . . . . . . . . . . . . . . . . . . . . . . .8
• Wire Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1 Prepare for Installation 5
Preparations
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 at the closest office of
purchase. See “Contacting ETC” on page 4.
Main Circuit Breaker Protection
Before you begin installing the Unison® ERn enclosure, make sure you have installed a
main circuit breaker cabinet or other readily accessible input power disconnect device in
the same room or in close proximity of the installed ERn enclosure.
WARNING:
Enclosures installed without an accessible power disconnect device cannot
be serviced or operated safely. Follow all local codes and restrictions.
When the disconnect device is not located near the installed enclosure, the
disconnect must allow for proper lockout / tagout.
Lockout/Tagout
Equipment should be locked out while being repaired. Accidents which occur because
machinery that is being repaired and not locked out often result in serious injuries like
amputations, fractures, and even death. Locking out and tagging power at its source is
important while repairing or adjusting equipment because it ensures that power does not
reach the equipment being serviced.
• To lockout means to place a lock on a device that prevents the release of energy.
Locking out is intended to prevent the unexpected startup or energizing of machinery
and equipment during service and maintenance operations.
• To tagout means to place a tag on a switch or other shut off device which warns others
not to start the piece of equipment. Tagout should only be used with lockout, unless
locking out the equipment is impossible.
General Lockout/Tagout Procedures:
• Notify all affected employees that a lockout/tagout procedure is ready to begin.
• Turn off the equipment at the control panel.
• Turn off or pull the main disconnect. Be sure all stored energy is released or restrained.
• Check all locks and tags for defects.
• Attach your safety lock or tag on the energy isolating device.
• Try to restart the equipment at the control panel to ensure that it is secured.
• Check the machine for possible residual pressures, particularly for hydraulic systems.
• Complete the repair or servicing work.
• Remove the safety lock and adapter.
6 Unison® ERn Rack Mount Enclosure Installation Manual
• Let others know that the equipment is back in service.
Maximum Current Input
The ERn enclosure draws a maximum current of 3 amps when fully populated.
1 Prepare for Installation 7
Rack Mounting Specifications
An ERn configured for installation in a 19” equipment rack requires 5U of rack space for an
ERn2 and 9U of rack space for an ERn4. ERn enclosures are provided with rack mounting
brackets attached to the ERn enclosure at shipment. The locking door attaches to the
equipment rack for a secure installation.
Dimensions and Weights
Enclosure
Height Width Depth
Type
inches mm inches mm inches mm lbs kgs lbs kgs
ERn2-RM w/
rack door
ERn4-RM w/
rack door
8.8 223 19 483 9.6 244 16.6 7.7 20 9.1
14.1 358 19 483 9.6 244 23.8 11 25 11.3
Installation Environment Requirements
• For your safety, you should install a circuit breaker cabinet or other readily accessible
input power disconnect device in the same area as the Unison ERn enclosure.
Breakers not in the same room must have a physical means to be locked off.
• A clean (not dusty), temperature controlled environment with the following conditions:
• ambient temperature of 32-104°F / 0-40°C
• ambient humidity of 10-90%, non-condensing
CAUTION:
• Restricted public access to prevent tampering.
HVAC systems must at all times maintain the specified ambient temperature at the
Unison ERn enclosure.
Product
Weight
Shipping
Weight
• All CE equipment is tested to EMC category B environment.
8 Unison® ERn Rack Mount Enclosure Installation Manual
Wire Requirements
+
+
+
+
+
-
1A
1B
1A
1B
1A
1B
2A
2B
2A
2B
2A
2B
A+ A- COM
B+B- COM A+ A- COM
B+B- COM
NO4
C
OM
4
N
O
3
C
OM
3
N
O
2
C
OM
2
N
O
1
C
OM
1
IN4
G
ND
IN3
G
ND
IN2
G
ND
IN1
G
ND
CONTACT
OUT
CONTACT
IN
DMX A DMX
P
ASS-THRU
DMX B
L
ON
A
UX
<<<
AC INPUT
+
-
+
-
+
-
+
-
+
-
1A
1B
1A
1B
1A
1B
2A
2B
2A
2B
2A
2B
A+ A- COM
B+B- COM A+ A- COM
B+B- COM
NO4
C
OM
4
N
O
3
C
OM
3
N
O
2
C
OM
2
N
O
1
C
OM
1
IN4
G
ND
IN3
G
ND
IN2
G
ND
IN1
G
ND
CONTACT
OUT
CONTACT
IN
DMX A
DMX
P
ASS
-T
HRU
DMX B
L
ON
A
UX
<<<
Ethernet
RS-232
serial
Ethernet
RS-232
serial
Wire Routing and Specification
The rear panel of the Unison® ERn rack mount unit includes a full compliment of removable
input and output connectors for easy installation. Additionally, an IEC power connector is
provided on the rear panel for input power.
Control Specifications
The riser below is typical of a system utilizing the ERn with the Paradigm architectural
control processor (P-ACP) for control. Paradigm systems provide up to two DMX inputs for
control of more advanced systems. A Paradigm system also utilizes Net3 networking for
system wide control.
SYSTEMLORTNOCGNIHGIL T SYSTEMLORTNOCGNIHGIL T
SENSOR3
dimmer rack
Unison DRd12
rack enclosure
power
feed
power
feed
SENSOR3
dimmer rack
power
feed
Unison ERn4
processing rack
power
feed
Unison
LinkPower
LinkPower
Aux Power 24 Vdc
DMX input
to ERn rack
Sequence
Macro Record
Unison Heritage
Stations
Sequence
Macro Record
Unison Paradigm
Touchscreen LCD
Preset 1
Preset 2
Preset 7
Preset 2
Preset 8
Preset 3
Preset 3
Preset 9
Preset 4
Preset 4
Preset 5
Preset 10
Preset 5
Preset 1
Preset 6
Preset 1
Preset 2
Preset 7
Preset 2
Preset 8
Preset 3
Preset 3
Preset 9
Preset 4
Preset 4
Preset 5
Preset 10
Preset 5
Preset 1
Preset 2
Preset 3
Preset 4
Preset 5
Preset 1
Preset 2
Preset 3
Preset 4
Preset 5
Preset 1
Preset 6
Eos Console
ETC Console
(for optional stage lighting)
1 Prepare for Installation 9
The following table lists the recommended control wire types used in a typical Unison ERn
installation and the maximum wire runs allowed.
Purpose
Total length of control wire
(without repeater module)
Maximum wire length (ERn
to station)
Maximum repeater distance
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
protocol, and uses one pair of wires (data +, data - ). You should pull an additional 14 AWG
(2.5mm
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.
2
) wire for grounding when not installed in grounded metal conduit.
Link Power
(Belden 8471)
Feet Meter Feet Meter Feet Meter
1640 500 1600 487 328 100
1313 400 1600 487 N/A N/A
1640 500 N/A N/A N/A N/A
DMX (Belden
9729)
®
LonWorks™ with LinkPower bidirectional
Ethernet
(Cat5 /Belden
1583a)
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.
Note:
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+ and data-) plus an ISO ground. ETC recommends the
use of Belden 9729 (or approved equal) wire with a single end of line termination (90-150
For best DMX performance, twist the wires together as close to the pluggable connector as
possible.
Auxiliary 24 Vdc
Auxiliary power is required when you are installing powered Unison control stations. ETC
recommends using two 16 AWG (1.5mm
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 36W (1.5A at 24Vdc).
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 1,313 feet
(400m) between the repeater and any station.
2
) stranded wires for 24 Vdc auxiliary power to the
Terminate LinkPower station wiring and the auxiliary power wiring to the rear
panel of the ERn that will host the Paradigm station power module (P-SPM).
10 Unison® ERn Rack Mount Enclosure Installation Manual
Chapter 2
Install Enclosure
This chapter contains instructions for installation of the ERn enclosure.
The introduction contains the following sections:
• Install in a 19” Equipment Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2 Install Enclosure 11
Install in a 19” Equipment Rack
Rack mounting brackets are installed on the ERn unit when shipped from the factory. Also
included, but not attached to the unit at shipment, is a flush mounted, locking door. The door
provides visibility and access openings for the Paradigm architectural control processor (PACP) user interface and the related status indicators. Additional access openings are
provided for visibility of status indicators on the Paradigm station power modules (P-SPM)
and Paradigm station repeater modules (P-REP or P-DREP).
Step 1: Secure the ERn enclosure to the 19” equipment rack using the hardware
provided. The ERn2 requires 5U of rack space and the ERn4 requires 9U of rack
space.
Note:
Step 2: Attach the door to the mounting brackets using the hardware provided.
WARNING:
Complete the entire installation before attaching the flush mounted locking door.
Reference -
• preparing and pulling required wire to the rear panel of the ERn enclosure
(see “Wire Requirements” on page 9 for details on wiring).
• connecting power to the IEC connector located on the rear panel (see “IEC
Power Input Connector” on page 14).
• connecting control wiring (see “Connect Control Wiring” on page 15).
• installing rack options (see “Rack Options” on page 22).
• check the system operation (see “Final Installation and Power Up” on page
29).
All terminations must be done with the power off. Enclosures installed
without an accessible power disconnect device cannot be serviced or
operated safely. Follow all local codes and restrictions.
When the disconnect device is not located near the installed enclosure, the
disconnect must allow for proper Lockout/Tagout.
12 Unison® ERn Rack Mount Enclosure Installation Manual
Chapter 3
Connect Wiring
This chapter contains the following sections:
• IEC Power Input Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
• Connect Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3 Connect Wiring 13
IEC Power Input Connector
AC Input
+
+
+
+
+
-
1A
1B
1A
1B
1A
1B
2A
2B
2A
2B
2A
2B
A+ A- COM
B+B- COM A+ A- COM
B+B- COM
NO4
C
OM
4
N
O
3
C
OM
3
N
O
2
C
OM
2
N
O
1
C
OM
1
IN4
G
ND
IN3
G
ND
IN2
G
ND
IN1
G
ND
CONTACT
OUT
CONTACT
IN
DMX A
DMX
P
ASS
-T
HRU
DMX B
LON
AUX
<
<
<
Ethernet
RS-232
serial
A rack mount ERn is supplied
with a full compliment of data
connections and an IEC
power connector on the rear
panel.
WARNING:
All terminations must be done with the power off. Enclosures installed
without an accessible power disconnect device cannot be serviced or
operated safely.
ERn Rack Mount Enclosure Power Input
The ERn enclosures are available in 100-120, 230, and 240 VAC single phase
configurations. The ERn requires a single phase, 15A at 120 VAC or a 15A at 230 and 240
VAC input feed.
The ERn rack mount enclosure is provided with an IEC power input connector for easy and
convenient installation.
Lance and forms are provided
as a way to secure wiring with
wire ties.
14 Unison® ERn Rack Mount Enclosure Installation Manual
Connect Control Wiring
+
-
+
-
+
-
+
-
+
-
1A
1B
1A
1B
1A
1B
2A
2B
2A
2B
2A
2B
A+ A- COM
B+B- COM A+ A- COM
B+B- COM
NO4
C
OM
4
N
O
3
C
OM
3
N
O
2
C
OM
2
N
O
1
C
OM
1
IN4
G
ND
IN3
G
ND
IN2
G
ND
IN1
G
ND
C
ONTACT
O
UT
C
ONTACT
I
N
DMX A
DMX B
DMX
P
ASS-THRU
L
ON
A
UX
<
<
<
Ethernet
RS-232
serial
12345678
COM
n/c
n/c
n/c
n/c
n/c
Data + (Red)
Data - (Black)
From source
DMX A
If daisy-chaining to
another rack or
DMX device...
This graphic illustrates DMX termination layout for the
screw-terminal connectors that are intended for use
with Belden 9729 cable (or approved equal) cable type.
Screw terminal connectors are supplied as standard in
the DMX Preparation Kit w/ Screw Connector, part
number 4100A1012.
Be aware that cable other than Belden 9729 may have
a different color code for its wire pairs.
All low voltage data and option wiring conveniently connects to removable and pluggable
connectors on rear panel of the ERn enclosure.
Note:
WARNING:
Lance and forms provided as a way to secure wiring with wire ties.
RISK OF DEATH BY ELECTRIC SHOCK! Failure to disconnect all power
before working in the enclosure could result in serious injury or even death.
The rear panel provides removable and pluggable connectors for contact inputs and
outputs, RS-232 serial, Ethernet control, contact closure input and output terminations,
LinkPower, auxiliary power, DMX in, DMX Out, and DMX through.
Rack options such as the redundant rack power supply (ERn-RPS) and the Unison ride thru
option kit terminate to the right I/O board located inside the ERn enclosure.
Connect Rear Panel I/O Data Terminations
Terminate DMX Control Wiring
DMX wire preparation and termination will vary with the type of wire and termination kit
being utilized. Please refer to the instructions supplied with the DMX termination kit for
specifics on the wire preparation.
DMX Input Termination: Screw Terminals Connector
3 Connect Wiring 15
DMX Input/Output Termination: Insulation Displacement Connectors
The graphic below illustrates DMX termination layout for an insulation displacement
connector (IDC). This connector type is intended for use with Belden 1583A (or approved
equal, such as Category 5, 5E, or 6) cable type.
The insulation displacement connector kit (IDC) may be requested from the factory but is
not supplied as standard. Request the IDC Pluggable Connector Termination kit, part
number 4100A1013. Be aware that cable other than Belden 1583A may have different color
code for its wire pairs.
BLU
GRN
W/GRN
From source
DMX A
ORG
W/ORG
BRN
Data +
Data -
W/BRN
COM
Use this DMX Pass-Thru
connector when
daisy-chaining to
another rack or
DMX device...
BLU
GRN
W/GRN
From source
DMX B
W/BLU
W/ORG
BRN
W/BRN
COM
Data +
Data - ORG
1234567812345678
DMX A
DMX B
Thru
Thru
W/ORG
W/ORG
n/c
n/c
Data +
Data - ORG
W/BRN
W/BRN
COM
Data +
Data - ORG
COM
12345678
W/BLU
Terminate LinkPower (LON®) Control Wiring
Note:
Note:
All low voltage control cables must run in separate conduit from power wires.
Unison control stations communicate with the Paradigm architectural control processor
using the Echelon
LinkPower (LON) data runs utilizing Belden 8471 cable (or its equivalent) plus one 14 AWG
(2.5mm
2
) ESD drain wire when the data cable is not installed in grounded metal conduit.
®
LinkPower network. Termination is available for up to six home runs of
LinkPower wiring is topology-free and polarity independent utilizing a LonWorks network.
Wiring may be bus, star, loop, home run, or any combination of these. The total combined
length of LinkPower data runs cannot exceed 1,640 feet (500m), with a maximum distance
of 1,313 feet (400m) between any two (un-repeated) communicating devices. Without a
repeater, no device may be more than 1,313 feet (400m) away from the Paradigm ACP.
Standard LON interoperability requires that there should be a maximum of only one
repeater between any two LON devices. This means that only one repeater module,
whether a Paradigm repeater module (P-REP) or a Paradigm dual repeater module
(P-DREP), may be used per Paradigm ACP. Each individual topology-free network can
have no more than 62 LON stations with a repeater option and Paradigm ACP.
When utilizing a Paradigm station repeater module (P-REP) or Paradigm dual
station repeater module (P-DREP), terminate the repeated LON segment(s) and
auxiliary power wiring to the related rear panel I/O board.
Step 1: Pull Belden 8471 (or approved equal type) control wiring to the rear panel of the
ERn enclosure.
Step 2: Strip 3/16” (5mm) of insulation from the ends of each wire pair.
16 Unison® ERn Rack Mount Enclosure Installation Manual
Step 3: Remove the LinkPower connector (labeled LON).
-
+
-
+
-
+
-
+
-
+
• Notice the LinkPower/LON connector is
labeled to indicate that the connector is split
between two LON segments, allowing three
station wire home runs per segment. This is
effective only when a Paradigm dual station
repeater module (P-DREP) is used. With the
standard Paradigm station repeater module
(P-REP) you may connect up to six station
home runs to the connector for the single LON
segment control.
Step 4: Loosen the terminal screws for as many wire pairs
you are terminating. Keep in mind that the
1A
1B
1A
1B
1A
1B
2A
2B
2A
2B
2A
2B
connector is split into two LON segments. 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 (2.5mm
2
) ground wire can terminate to the ground bus located on
the rear panel of the ERn enclosure. Connect the other end of the ground wire to
the green/yellow striped wire connected at the architectural control station using
a Scotchlok connector. Reference the related station installation manual for
further details.
Step 8: Replace the connector to the rear panel I/O.
Terminate Auxiliary Power
Auxiliary power is required when you are installing powered Unison control stations. ETC
recommends using two 16 AWG (1.5mm
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
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) to the ERn enclosure
rear panel.
Step 2: Strip 3/16” (5mm) of insulation from the ends of each
wire pair.
Step 3: Remove the auxiliary power connector from the 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
Step 7: Repeat steps 5 and 6 for all auxiliary power wires in the enclosure.
Step 8: Replace the connector to the rear panel I/O.
connectors and tighten the screw to secure the wire into the connector.
3 Connect Wiring 17
2
) stranded wires for 24 Vdc auxiliary power to the
2
)
Note:
Status Indicators
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, LinkPower 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
• 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
It is required that you terminate LinkPower 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.
lights.
stations are receiving the data and power required for operation.
Connect to Serial RS-232
Integrators or users of advanced systems can interface with the Unison system through the
RS-232 serial connector located on the rear panel I/O.
This connection provides an interface with external devices capable of sending or receiving
RS-232. This connection can also receive serial commands from a transmitter and provide
rack and system status when queried.
Note:
The RS-232 cable (not supplied) should follow common RS-232 pinout for a DB9 receptacle (pin 2 is RS-232 Rx, pin 3 is RS-232 Tx, and pin 5 is ground).
Connect to Ethernet RJ-45
The network interface to the ERn enclosure is made through the RJ-45 connector (labeled
Ethernet) located on the rear panel I/O.
Note:
All Ethernet terminations must follow IEEE 802.3 and be terminated to the T568B
standard.
18 Unison® ERn Rack Mount Enclosure Installation Manual
Connect to Contact Inputs and Contact Outputs
The rear panel I/O provides convenient interface (inputs and outputs) to external devices
via contact closure on removable pluggable connectors. Up to four contact inputs are
available and can be configured for either maintained or momentary operation as set in the
Paradigm architectural control processor. Reference the Paradigm Architectural Control
Processor Configuration Manual for details on configuration. Up to four contact outputs are
also available and are preset for normally open operation.
Note:
Terminate Contact Inputs
Step 1: Remove the contact inputs removable screw terminal connector located on the
Step 2: Strip 3/16” (5mm) of insulation from the end of each wire pair.
Step 3: Loosen the desired number of contact input screw terminals and related ground
Step 4: Insert contact closure 1 into the terminal labeled “IN1” on the connector and
Step 5: Insert the related ground wire for contact closure 1 into the terminal labeled
Step 6: Repeat for each contact input and ground wire pair (up to four total).
Terminate Contact Outputs
Step 1: Remove the contact outputs removable screw terminal connector located on the
Step 2: Strip 3/16” (5mm) of insulation from the end of each wire pair.
Step 3: Loosen the desired number of contact output (normal open) screw terminals and
Step 4: Insert contact output 1 into the terminal labeled “NO1” on the connector and
Step 5: Insert the related common wire for contact output 1 into the terminal labeled
Step 6: Repeat for each contact output and common wire (up to four total).
Typical contact I/O wiring is color coded as follows: contact 1 - brown, contact 2 orange, contact 3 - yellow, contact 4 - green. All commons and ground voltages
are typically black or red.
rear panel I/O. Each connector is labeled for installation convenience.
screw terminals on the connector.
tighten the screw terminal.
“GND” on the connector and tighten the screw terminal.
rear panel I/O. Each connector is labeled for installation convenience.
related ground screw terminals on the connector.
tighten the screw terminal.
“COM1” on the connector and tighten the screw terminal.
3 Connect Wiring 19
Right I/O Board Terminations
ERn-RPS In
Ride Thru / Batt
24Vdc In
The right I/O board is located inside the ERn enclosure and serves are the connection point
for option kits, power supplies, and data terminations.
V In
4
2
connection to rear panel I/O
connection to
rear panel I/O
n
I
RPS
t
t
Ba
/
u
ide Thr
R
I
D
C
A
X
M
D
D
N
O
L
B
X
M
The “24 Vdc in” connection is the rack power supply (ERn-PS) connection and is connected
for you at the factory. The “ERn-RPS” and “Ride Thru / Batt” terminations are detailed in
“Rack Options” on page 22.
Terminate DMX
DMX requires 120 termination at the last DMX device in the control run. Since an ERn
with a Paradigm module installed can utilize up to two DMX inputs (2 DMX runs) the right
I/O board provides convenient termination switches for use.
Notice the two termination switches labeled DMXA and DMXB on the right I/O board. Each
switch has three termination positions:
• Source - reserved for RDM termination (future
development).
• Off - no termination, DMX will pass through this
devices on to the next DMX device in the data
run.
• End - termination is on. Used for the last DMX
device (ERn enclosure) that is physically
connected in the daisy chained DMX data run.
If DMXB is configured to output DMX, the
termination for DMXB should be switched to “OFF”.
connection to
rear panel I/O
SRCOff
End
Ride Thru
/Batt
LON
DMXADMXB
Half
CDI port
Full
20 Unison® ERn Rack Mount Enclosure Installation Manual
Chapter 4
Install Rack Options
This chapter contains the following sections:
• Install the Ride Thru Option (URTO) Kit . . . . . . . . . . . . . . . .22
• Install a Paradigm Repeater or Dual Repeater Module . . . .24
• Install Redundant Power Supply . . . . . . . . . . . . . . . . . . . . . .28
4 Install Rack Options 21
Rack Options
2008
Unison ERn rack mount unit options include the ride through option (URTO) kit and the
redundant rack power supply module (ERn-RPS).
Additionally you may use a repeater module in the ERn4 enclosure top module slot instead
of a secondary Paradigm station power module. See “Install a Paradigm Repeater or Dual
Repeater Module” on page 24.
Install the Ride Thru Option (URTO) Kit
WARNING:
The ride thru option (URTO) kit provides power for the Paradigm architectural control
processor for a minimum of 12 seconds during brief power outages or power drop outs. The
ride through option board fully charges and is ready for operation within ten minutes of the
ERn being powered.
Risk of Electric Shock! The Unison ride thru option board retains an
electrical charge even when power to the ERn enclosure is off.
Note:
Step 1: Remove any modules from the ERn enclosure for ride thru option board
Note:
22 Unison® ERn Rack Mount Enclosure Installation Manual
One Unison ride thru option board powers only one Paradigm ACP, therefore an
ERn4 with two Paradigm ACPs installed requires two ride thru option boards.
installation access.
For 230 VAC CE enclosures, you must remove the module retention bar from the
left front side of the enclosure before removing any modules. Keep this retention
bar and its hardware in a secure place as it will be reinstalled in the final installation
procedure.
• For an ERn2, remove only the bottom option module from the enclosure.
• For an ERn4 with two Paradigm ACPs, remove the bottom option module
and the rack power supply from the enclosure.
Step 2: Align the ride through option board to the mounting studs in the right corner of
2008
Step 1:
the ERn enclosure (see graphic on the previous page).
• Notice the mounting holes on the option board. Two are open ended slots
used to set the board in place and the remaining two standard mounting
holes are used to secure the board in place.
• Align the open ended slots to the studs located closest to the bottom of the
enclosure.
Step 3: Secure the board to the top two mounting pems with the screws provided.
Connect Ride Thru Option Wiring
The Unison ride thru option board is provided with a wiring harness for connection to the
ERn right I/O board.
Step 1: Connect one end of the wiring harness to the two pin receptacle on the option
board.
Step 2: Connect the other end of the wiring harness to the two pin receptacle labeled
“Ride Thru / Batt” on the ERn right I/O board. When two ride thru option boards
are installed, the top ride thru option wiring harness terminates to the I/O board
in the top and the bottom ride thru option wiring harness terminate to the I/O
board in the bottom of the unit.
Step 3: Secure the wiring harness to the ERn enclosure using the cable tie and cable tie
mount provided in with the ride thru option board. A loose or poorly routed wiring
harness could interfere with option module (ERn-NET or ERn-RPS) installation
in the lower option module slot. In the top module slot the wiring harness could
interfere with the rack power supply (ERn-PS).
4 Install Rack Options 23
Install a Paradigm Repeater or Dual Repeater Module
Blank (Air flow) module (ERn-BM)
Paradigm station repeater module (P-REP)
Paradigm station power module (P-SPM)
Paradigm architectural control
processor (P-ACP)
Paradigm dual station repeater module (P-DREP)
Paradigm station power module (P-SPM)
Paradigm architectural control processor (P-ACP)
The Paradigm station repeater (P-REP) module extends the system station bus length by
1,640 feet (500m) and adds support for up to 30 additional stations.
The Paradigm dual station repeater (P-DREP) module extends the system station bus
length 3,280 feet (1,000m) through two separate topology-free Echelon segments (each
supporting 1,640 feet (500m) of additional LinkPower station wire each) and adds support
for up to 30 additional stations.
Both repeater module types may only be utilized in the top module slots of the ERn4
enclosure.
The following table lists the recommended control wire types used in a typical Unison
installation and the maximum wire runs allowed.
Link Power
Purpose
Total length of control wire
(without repeater module)
Maximum wire length (ERn
to station)
Maximum repeater distance
24 Unison® ERn Rack Mount Enclosure Installation Manual
(Belden 8471)
Feet Meter Feet Meter Feet Meter
1640 500 1600 487 328 100
1313 400 1600 487 N/A N/A
1640 500 N/A N/A N/A N/A
DMX (Belden
9729)
Ethernet
(Cat5 /Belden
1583a)
Terminate LinkPower (LON®) Control Wiring
1A
1B
1A
1B
1A
1B
2A
2B
2A
2B
2A
2B
Note:
Note:
All low voltage control cables must run in separate conduit from power wires.
Unison control stations communicate with the Paradigm architectural control processor
using the LinkConnect station communication bus from the architectural control processor
to the stations. LinkConnect is based on Echelon
protocol, and uses one pair of wires (data+ and data-). Throughout this instruction,
LinkConnect is referred to by the protocol it uses, LinkPower.
Termination is available for up to six home runs of LinkPower (LON) data runs utilizing
Belden 8471 cable (or approved equal) plus one 14 AWG ESD drain wire when the data
cable is not installed in grounded metal conduit. LinkPower wiring is topology-free and
polarity independent, you can install your LinkPower data runs in any desired combination
of bus, star, loop, and home run. The total combined length of LinkPower wire run cannot
exceed 1,640 feet (500m), with a maximum distance of 1,313 feet (400m) between any two
un-repeated communicating devices. Without a repeater, no device may be more than
1,313 feet (400m) away from the architectural control processor.
Standard LON interoperability requires that there should be a maximum of only one
repeater between any two LON devices. This means that only one repeater module,
whether a Paradigm station repeater module (P-REP) or a Paradigm dual station repeater
module (P-DREP), may be used per Paradigm architectural control processor (P-ACP).
Each individual topology-free LonWorks network can have no more than 62 LON stations
with a repeater, station power module, and Paradigm architectural control processor.
When utilizing a Paradigm station repeater module (P-REP) or Paradigm dual
station repeater module (P-DREP), terminate the repeated LON segment(s) and
auxiliary power wiring to the related rear panel I/O board.
®
LonWorks® with LinkPower bidirectional
Step 1: Pull Belden 8471 (or approved equal type) control wiring to the rear panel of the
ERn enclosure.
Step 2: Strip 3/16” (5mm) of insulation from the ends of each wire pair.
Step 3: Remove the LinkPower connector (labeled LON).
• Notice the LinkPower/LON connector is labeled
to indicate that the connector is split between two
LON segments, allowing three station wire home
runs per segment. This is effective only when a
Paradigm dual station repeater module (PDREP) is used. With the standard Paradigm
station repeater module (P-REP) you may
connect up to six station home runs to the
connector for the single LON segment control.
Step 4: Loosen the terminal screws for as many wire pairs
you are terminating. Keep in mind that the connector
is split into two LON segments. 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 (2.5mm
the rear panel of the ERn enclosure. Connect the other end of the ground wire to
the green/yellow striped wire connected at the architectural control station using
2
) ground wire can terminate to the ground bus located on
4 Install Rack Options 25
the connector provided. Reference the related station installation manual for
-
+
-
+
-
+
-
+
-
+
further details.
Step 8: Replace the connector to the rear panel I/O.
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.
Step 1: Pull auxiliary control power wiring (typically 16 AWG
(1.5mm
2
) red / black wire pair) to the ERn rear panel.
Step 2: Strip 3/16” (4.8mm) of insulation from the ends of
each wire pair.
Step 3: Remove the auxiliary power connector from the 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
connectors and tighten the screw to secure the wire into the connector.
Step 7: Repeat steps 5 and 6 for all auxiliary power wires in the enclosure.
Step 8: Replace the connector to the rear panel I/O.
Note:
It is required that you terminate LinkPower station wiring and the auxiliary power
wiring to the ERn rear panel I/O board that will host the Paradigm station power
module (P-SPM).
26 Unison® ERn Rack Mount Enclosure Installation Manual
Status Indicators
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, LinkPower control
network, and connected stations.
The Aux Power and LinkPower LEDs indicate in green when the Paradigm station power
module is connected properly and auxiliary power and LinkPower are present. When there
is an unbalance 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 qualified 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.
4 Install Rack Options 27
Install Redundant Power Supply
Install the redundant rack power supply in the bottom option
module slot of the ERn enclosure and secure it in place with the
two captured screws.
The ERn redundant power supply (ERn-RPS) is an additional rack power supply that
powers the ERn enclosure if the primary rack power supply fails.
Note:
The redundant power supply (ERn-RPS) is not supported in ERn4 enclosures at
230 VAC. Instead the ERn4 at 230 VAC is shipped from the factory with a rack
power supply installed in the top (normal) position and in the lower option module
slot as standard.
Status Indicator
When the redundant power supply is installed properly, and power is applied to the ERn
enclosure, the LED will indicate in green if the supply is powered. If the LED is off but the
primary rack supply status indicator is on, the redundant power supply requires servicing.
Alternatively, if the primary rack supply status LED is off, but the redundant power supply
is on, the primary rack supply requires service. Contact ETC Technical Services for
assistance. See “Contacting ETC” on page 4.
28 Unison® ERn Rack Mount Enclosure Installation Manual
Chapter 5
Final Installation and Power Up
This chapter contains the following sections:
• Check Main Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
• Final Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5 Final Installation and Power Up 29
Completing the Installation
ERn door removed from graphic for
clarity of rack power supply
installation.
It’s a good idea to look over the entire installation before applying power to the enclosure.
WARNING:
• Clean out dust and debris from the enclosure interior.
• Check for loose connections, bare wires, and damaged insulation.
Power must be turned OFF when you perform this procedure. ETC
recommends that your facility adopt a Lockout/Tagout procedure to
maintain safety of maintenance personnel. Reference "Lockout/Tagout" on
page 6 for general guidelines.
Check Main Power Wiring
Check resistance between line, neutral, and ground busses with a digital voltmeter (DVM).
• Line to ground resistance should be 10M Ohm or higher.
• Neutral to ground resistance should be 0 Ohm.
• Line to neutral resistance should be 10M Ohm or higher.
Putting the Rack Back Together
Re-install the rack power supply into the top slot of the ERn enclosure. For an ERn4 230
VAC enclosure, re-install both rack power supplies into the enclosure. One rack power
supply installs in the standard top slot and the other in the lower option module slot.
Aux Power and LinkPower Status Indicators
When power is applied to the ERn, the Paradigm repeater module LEDs located on the
front panel illuminate, indicating the status of the auxiliary power, LinkPower control
network, and connected stations.
The Aux Power and LinkPower LEDs indicate in green when the Paradigm station power
module is connected properly and auxiliary power and LinkPower are present. When there
is an unbalance 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 qualified 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.
30 Unison® ERn Rack Mount Enclosure Installation Manual
Final Installation
Step 1: Install the Paradigm architectural control processor (P-ACP) in the appropriate
module slot.
Step 2: Install the Paradigm station power module (P-SPM) in the module slot above the
Paradigm architectural control processor.
Step 3: Install option modules if they are not installed. For an ERn4, you may install a
Paradigm dual repeater module (P-DREP), two blank modules, or a Paradigm
station repeater module (P-REP) in the top module slot of the enclosure with a
blank module below.
Step 4: Install either the ERn blank option module or the redundant power supply (ERn-
RPS) in the lower option module slot.
a: If installing the redundant rack power supply (ERn-RPS) module in the option
module slot, be certain you have completed the installation requirements.
See “Install Rack Options” on page 21.
Note:
The optional redundant power supply (ERn-RPS) is not supported in ERn4
enclosures at 230 VAC. Instead the ERn4 at 230 VAC is shipped from the factory
with a rack power supply installed in the top (normal) position and in the lower
option module slot as standard.
Step 5: Install blank air flow (ERn-BM) modules in any unused module slot in the
enclosure to maintain the required convection cooling requirements.
Step 6: For 230 VAC CE ERn enclosures, reinstall the module retention bar to the left
side of the ERn enclosure. This module retention bar is required to maintain CE
compliance.
5 Final Installation and Power Up 31
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7180M2110
Rev B Released 2012-08
Copyright © 2012 ETC. All Rights Reserved. Product information and specifications subject to change.
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