Extron electronics NetPA Ultra Series User manual

User Guide
NetPA U 2002 SB
NetPA Ultra Series
2-channel DSP and Dante-enabled
Audio Power Amplifier
68-3148-01 Rev. A
04 21


Copyright
© 2021 Extron. All rights reserved. www.extron.com
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
The following registered trademarks (®), registered service marks (SM), and trademarks (TM) are the property of RGBSystems, Inc. or Extron (see the
current list of trademarks on the Terms of Use page at www.extron.com):
Registered Trademarks (®)
Extron, Cable Cubby, ControlScript, CrossPoint, DTP, eBUS, EDID Manager, EDID Minder, eLink, Flat Field, FlexOS, Glitch Free, GlobalConfigurator,
GlobalScripter, GlobalViewer, Hideaway, HyperLane, IPIntercom, IPLink, KeyMinder, LinkLicense, LockIt, MediaLink, MediaPort, NAV,
NetPA, PlenumVault, PoleVault, PowerCage, PURE3, Quantum, ShareLink, Show Me, SoundField, SpeedMount, SpeedSwitch, StudioStation,
SystemINTEGRATOR, TeamWork, TouchLink, V-Lock, VideoLounge, VN-Matrix, VoiceLift, WallVault, WindoWall, XPA, XTP, XTPSystems, and ZipClip
Registered Service Mark(SM) : S3 Service Support Solutions
Trademarks (™)
AAP, AFL (Accu-RATEFrameLock), ADSP(Advanced Digital Sync Processing), AVEdge, CableCover, CDRS(ClassD Ripple Suppression),
CodecConnect, DDSP(Digital Display Sync Processing), DMI (DynamicMotionInterpolation), DriverConfigurator, DSPConfigurator, DSVP(Digital
Sync Validation Processing), EQIP, Everlast, FastBite, Flex55, FOX, FOXBOX, IP Intercom HelpDesk, MAAP, MicroDigital, Opti-Torque,
PendantConnect, ProDSP, QS-FPC(QuickSwitch Front Panel Controller), RoomAgent, Scope-Trigger, SIS, SimpleInstructionSet, Skew-Free,
SpeedNav, Triple-Action Switching, True4K, True8K, Vector™ 4K, WebShare, XTRA, and ZipCaddy

FCC Class B Notice
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
This device must accept any interference received, including interference that may
cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part15 of the FCC rules. These limits provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. There is no
guarantee that interference will not occur. If this equipment does cause interference to radio
or television reception, which can be determined by turning the equipment off and on, you
are encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
In order to maintain compliance with FCC regulations, shielded cables must be used with
this equipment. Operation with non-approved equipment or unshielded cables is likely to
result in interference to radio and TV reception. The user is cautioned that changes and
modifications made to the equipment without the approval of the manufacturer could void
the user’s authority to operate this equipment.
NOTE: For more information on safety guidelines, regulatory compliances, EMI/EMF
compatibility, accessibility, and related topics see the Extron Safety and Regulatory
Compliance Guide on the Extron website.

Conventions Used in this Guide
Notifications
The following notifications are used in this guide:
DANGER:
• Will result in serious injury or death.
• Entraînera des blessures graves ou la mort.
WARNING: Potential risk of severe injury or death.
AVERTISSEMENT : Risque potentiel de blessure grave ou de mort.
CAUTION: Risk of minor personal injury.
ATTENTION : Risque de blessuremineure.
ATTENTION:
• Risk of property damage.
• Risque de dommages matériels.
NOTE: A note draws attention to important information.
TIP: A tip provides a suggestion to make working with the application easier.
Software Commands
Commands are written in the fonts shown here:
^AR Merge Scene,,Op1 scene 1,1 ^B 51 ^W^C
[01] R 0004 00300 00400 00800 00600 [02] 35 [17] [03]
EX! *X1&*X2)*X2#*X2! CE}
NOTE: For commands and examples of computer or device responses mentioned
in this guide, the character “0” is used for the number zero and “O” is the capital
letter “o.”
Computer responses and directory paths that do not have variables are written in the font
shown here:
Reply from 208.132.180.48: bytes=32 times=2ms TTL=32
C:\Program Files\Extron
Variables are written in slanted form as shown here:
ping xxx.xxx.xxx.xxx —t
SOH R Data STX Command ETB ETX
Selectable items, such as menu names, menu options, buttons, tabs, and field names are
written in the font shown here:
From the File menu, select New.
Click the OK button.
Specifications Availability
Product specifications are available on the Extron website, www.extron.com.
Extron Glossary of Terms
A glossary of terms is available at http://www.extron.com/technology/glossary.aspx.

Contents Contents
Introduction ................................................ 1
About This Guide................................................. 1
About the NetPA U 2002 SB ............................... 1
Features .............................................................. 1
Installation .................................................. 4
Mounting the NetPA U 2002 SB Amplifier............ 4
Tabletop Use ................................................... 4
UL Rack Mounting Guidelines.......................... 4
Rack Mounting .................................................... 5
Rack Ear Mounting .......................................... 5
Bridge Plate Rack Mounting ............................ 5
Rack Shelf Mounting ........................................... 6
Rack Mounting Ventilation Recommendations . 7
Flexible Conduit Adapter Kit Installation ............... 8
UL Requirements............................................. 9
Installing the Flexible Conduit Adapter Kit ........ 9
Installing the SAK AMP SF 10C Mounting Kit
for NetPA U Amplifiers .................................. 11
Operation.................................................. 16
Front Panel Features.......................................... 16
Rear Panel Features .......................................... 17
Operation .......................................................... 21
Default........................................................... 21
AT Port .......................................................... 22
Standby Modes ............................................. 22
Monitoring ..................................................... 24
DSP Configurator Software ....................... 26
Downloading and Installing DSP Configurator.... 26
Accessing the DSP Configurator Help File ......... 27
DSP Configurator Main Workspace ................... 27
Menu Bar ...................................................... 27
Presets Drop-Down ....................................... 30
DSP Configurator Status Panel...................... 30
Live and Emulate Panel.................................. 30
Connect to a NetPA U 2002 SB Amplifier
in Live Mode................................................. 31
Exit Live Mode and Enter Emulate Mode........ 33
DSP Configurator Inputs.................................... 34
Mic/Line Inputs.............................................. 34
Mic/Line Inputs Processing............................ 36
AT Inputs ....................................................... 45
AT Inputs Processing ..................................... 45
Mix-Points ......................................................... 46
DSP Configurator Outputs................................. 48
Line/AT Outputs............................................. 48
Line/AT Output Processing ............................ 50
Balancing NetPA Amplifier Output Level
and XPA Input Sensitivity .................................. 53
Amplifier Outputs............................................... 54
Setting the Output Mode ............................... 54
Configuring the Output Mode ........................ 55
Naming an Amplifier Output........................... 56
Amplifier Outputs Processing......................... 56
Monitoring ......................................................... 57
Open Circuit Detect ....................................... 61
Loss of AC..................................................... 61
Configuration Tools ................................... 63
Presets.............................................................. 63
Methods for Marking Items ............................ 63
Configuring Presets ....................................... 64
Groups .............................................................. 65
Configuring Groups ....................................... 66
Device Manager ................................................ 67
Managing Devices in Device Manager............ 68
Connect/Disconnect from Device ...................... 69
Firmware Loader ............................................... 70
Downloading Firmware Updates.................... 70
Organize Building Blocks................................... 71
Device Settings.................................................. 72
Unit Info......................................................... 72
Serial Settings ............................................... 73
Dante Device .................................................... 73
Options ............................................................. 74
viiNetPA U 2002 SB User Guide • Contents

Dante Controller........................................ 75
Overview ........................................................... 75
Downloading and Installing Dante Controller...... 76
Configuring a NetPA U 2002 SB Amplifier
in Dante Controller............................................ 76
Device Name................................................. 76
Receiver and Transmitter Names ................... 77
Dante Controller Naming Conventions ........... 77
Renaming the NetPA U 2002 SB Amplifier
in Dante Controller........................................ 77
Renaming a Receiver or Transmitter............... 79
Finding a Dante Device IP Address ................ 80
Dante Controller Operation ................................ 81
Dante Transmitters and Receivers.................. 81
NetPA Ultra Series Transmitters and
Receivers...................................................... 81
Dante Routing Operation ............................... 81
Routing Devices ................................................ 81
Disconnecting Inputs from Outputs................ 83
Dante Troubleshooting....................................... 83
Simplifying the Network for Troubleshooting... 83
Troubleshooting the Network Interface........... 83
Restarting Dante Controller............................ 84
Remote Communication and Control ......... 85
Connection Options........................................... 85
RS-232 Port .................................................. 86
AT Port .......................................................... 86
USB Config Port............................................ 87
Verbose Modes ............................................. 87
Host-to-Device Communications....................... 87
NetPA U 2002 SB-initiated Messages............ 87
Using the Command and Response Tables ....... 88
Symbol Definitions ......................................... 88
Error Responses............................................ 88
Hardware Reset Modes..................................... 89
Command and Response Table......................... 90
Object ID (OID) Number Tables ........................ 103
Input Path OIDs ........................................... 103
Output Path OIDs ........................................ 103
Mix-point OIDs............................................. 104
Troubleshooting............................................... 104
Amplifier Fails to Exit Standby Mode
Promptly..................................................... 104
Amplifier Enters Standby Mode Too Early..... 105
Limiter/Protect LED Warning Indicators........ 105
Over Temp Indicator LED............................. 105
Status Commands....................................... 106
Extron Warranty ...................................... 108
NetPA U 2002 SB User Guide • Contents viii

NetPA U 2002 SB User Guide • Introduction 1
Introduction
This section gives an overview of the Extron NetPA U 2002 SB 2-channel power amplifier.
Topics in this section include:
• About This Guide
• About the NetPA U 2002 SB
• Features
About This Guide
This guide describes the NetPA U 2002 SB: a 2-channel DSP-enabled power amplifier, and
discusses how to install, configure, and operate it.
In this guide, the terms “unit,” “amplifier,” and “power amplifier” refer to the NetPA U 2002
SB power amplifier.
About the NetPA U 2002 SB
The Extron NetPA U 2002 SB is an ENERGY STAR qualified, Dante-enabled audio power
amplifier with flexible outputs that can drive 8 ohm, 4 ohm, 70 volt, or 100 volt loads in a half
rack, convection cooled, plenum rated enclosure that includes rack mount hardware.
The bridgeable outputs can deliver two 200 watt channels into low impedance systems or
one 400 watt channel into low or high impedance systems. Onboard audio DSP includes
a 6x6 mix matrix, filters, and dynamics. Four mic/line inputs and two line outputs can be
utilized as Dante endpoints or as additional inputs to the onboard DSP. System monitoring
via the Dante connection includes detailed amplifier status.
The NetPA U 2002 SB features Extron’s patented highly efficient Class D amplifier design
with CDRS – Class D Ripple Supression, and defeatable auto-standby with fast wake up.
Features
• Receives audio from the Dante audio network as well as from analog
mic/line level inputs — Select a channel from any remote Dante-enabled device
on the network, or an analog source, to be brought into the NetPA U 2002 SB for
amplification.
• Two channels with selectable output modes — Allows this single amplifier model to
be used in a wide variety of system configurations. Available configurations per channel
pair:
• Two 200 watt channels into 8 ohms or 4 ohms
• One 400 watt bridged channel into 70V or 100V
• One 400 watt bridged channel into 8 ohms or 16 ohms

NetPA U 2002 SB User Guide • Introduction 2
• ENERGY STAR qualified amplifier with defeatable auto-standby and fast wake
up — The NetPA U 2002 SB is an ENERGY STAR qualified amplifier and energy
efficient product that conserves energy and reduces cost. It meets ENERGY STAR
qualification requirements with an auto-standby feature which automatically places the
amplifier into Standby Mode after 25 minutes of inactivity thereby dramatically reducing
power consumption. It quickly returns to full power status in less than 100 ms upon
signal detection, with minimal inrush current. Auto-standby can be disabled if required.
• Single and dual rack-mount hardware included — The included single and side-by-
side rack-mount hardware simplifies planning and saves cost.
• Integrated DSP — The NetPA U 2002 SB has a 6x6 mix matrix which provides
essential DSP processing including level control, filters, dynamics, ducking, and delay.
• Convection cooled, fanless operation - can be stacked without extra rack
space for ventilation — The NetPA U 2002 SB does not require internal fans or vents
for cooling, ensuring quiet and reliable operation. It generates substantially less heat
than conventional power amplifiers, making it ideal for rack-mount applications where
space is limited (see Rack Mounting Ventilation Recommendations on page7).
• Extron Patented CDRS - Class D Ripple Suppression — CDRS is an Extron
Patented technology that provides a smooth, clean audio waveform and an
improvement in signal fidelity over conventional Class D amplifier designs. CDRS
eliminates the high frequency switching ripple that is characteristic of Class D amplifiers,
a source of RF emissions which can interfere with sensitive AV equipment such as
wireless microphones.
• Remote control and monitoring —
• Control and monitor the NetPA U 2002 SB amplifier directly through the RS-232
port.
• Control the NetPA U 2002 SB amplifier through a DMP Plus or XMP processor over
a Dante network.
• Setup and configuration with Extron DSP Configurator Software — Via the Dante
network or USB.
• UL 2043 plenum rated when used with optional Flexible Conduit Adapter Kit —
The NetPA U 2002 SB meets UL 2043 for smoke and heat release for installation within
a plenum airspace above a drop ceiling when used with the optional Flexible Conduit
Adapter Kit. Above-the-ceiling placement conceals the amplifier to prevent theft, and is
convenient for installing equipment when space inside the room is limited.
• Professional grade signal-to-noise and THD+N performance — The NetPA U
2002 SB delivers professional grade performance, featuring 100 dB signal-to-noise ratio
and THD+N of less than 0.1%.
• Ultra low inrush current at power up - no need for power sequencing —
Allows multiple NetPA U 2002 SB amplifiers to be powered on simultaneously without
overloading power circuits. This eliminates the need for power sequencing.
• Power factor correction - removes harmonic content on AC line — The NetPA
U 2002 SB features power factor correction technology that smooths out the high
peak currents of the amplifier’s current draw thereby minimizing the presence of high
frequency harmonics on the AC power line and preventing audible artifacts from being
transmitted to other audio equipment in the system.
• Automatic clip limiter — Detects actual onset of clipping. Gain is automatically
reduced without audible artifacts to protect speakers from clipping distortion.
• Multiple protection circuits — Activate during output shorts, thermal overload, or DC
faults to prevent damage to the amplifier and speakers.

NetPA U 2002 SB User Guide • Introduction 3
• Remote standby port — Enables the NetPA U 2002 SB to be remotely powered
down when not in use, reducing operating cost.
• High pass filter for high impedance models — The NetPA U 2002 SB features
a fixed high pass filter on the amplified outputs to prevent saturation of speaker
transformers.
• 5 mm screw-lock captive screw speaker connectors — Enable simple, secure
connections with 22 to 12 AWG speaker cables.
• Front and rear-mounted signal and protection indication LEDs — Provide
convenient indication of input signal presence and protection circuit activation from both
sides of the equipment rack.
• Front panel over-temperature LED — Provides visual indication that the amplifier
temperature has exceeded the optimal value, well in advance of the onset of thermal
protection circuitry.
• Internal Extron Everlast power supply — Provides worldwide power compatibility,
with high-demonstrated reliability and low power consumption for reduced operating
cost.
• Extron Everlast Power Supply is covered by a 7-year parts and labor warranty.

NetPA U 2002 SB User Guide • Installation 4
Installation
This section describes the installation and setup of the NetPA U 2002 SB power amplifier. Topics
include:
• Mounting the NetPA U 2002 SB Amplifier
• Rack Mounting
• Flexible Conduit Adapter Kit Installation
Mounting the NetPA U 2002 SB Amplifier
The NetPA U 2002 SB amplifier can be mounted in a rack using the included rack
ears, mounted on a rack shelf, set on a table or mounted in the plenum space above a
ceiling-mounted projector. Also, two amplifiers can be connected using the bridging plate to
create a full rack-width unit.
Tabletop Use
Four self-adhesive rubber feet are included. Attach one foot at each corner on the bottom
side of the amplifier and place the unit in a desired location.
UL Rack Mounting Guidelines
The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the
equipment in a rack.
• Elevated operating ambient temperature — If the equipment is installed in a closed
or multi-unit rack assembly, the operating ambient temperature of the rack environment
may be greater than room ambient temperature. Therefore, install the equipment in an
environment compatible with the maximum ambient temperature (TMA = +32° F to
+122° F (0° C to +50° C)/ 10% to 90%, noncondensing) specified by Extron.
• Reduced air flow — Install the equipment in a rack so the amount of air flow required
for safe operation of the equipment is not compromised.
• Mechanical loading — When mounting the equipment in the rack, ensure uneven
mechanical loading does not cause a hazardous condition.
• Circuit overloading — When connecting the equipment to the supply circuit, consider
the effect circuit overloading might have on overcurrent protection and supply wiring.
Consider equipment nameplate ratings when addressing this concern.
• Reliable earthing (grounding) — Maintain reliable grounding of rack-mounted
equipment. Pay particular attention to supply connections other than direct connections
to the branch circuit (for example, using power strips).

NetPA U 2002 SB User Guide • Installation 5
Rack Mounting
The NetPA U 2002 SB amplifier can be mounted onto a rack using one of the following
methods.
NOTE: The following figures show the NetPA U 2002 SB being installed; however, all
XPA Ultra and NetPA Ultra Series amplifiers are installed in the same way.
Rack Ear Mounting
The NetPA U 2002 SB amplifier ships with a set of rack ears, so that the half rack-width
amplifiers can be installed in a full rack-width space.
Mount the amplifier with the rack ears by doing the following:
1. Remove the rubber feet from the bottom of the amplifier if previously installed.
2. Attach the included rack ears (one long and one short) to the sides of the amplifier with
the four provided #6 machine screws (see figure1, 1).
e
NetPAU2002 SB
12
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
1
NetP
NetP
POWERAMPLIFIERS
NetP
e
NetPAU 2002 SB
1 2
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
2
NetP
Figure 1. Installing the NetPA U 2002 SB
3. Insert the amplifier into the rack and align the holes in the rack ear with the holes on the
rack.
4. Secure the amplifier to the rack using the four provided 10-32 x 3/4” screws (2).
Bridge Plate Rack Mounting
The NetPA U 2002 SB amplifier ships with a bridge plate connector to allow two amplifiers
to be connected together and form a full rack-width unit.
Mount two NetPA U 2002 SB amplifiers by doing the following:
1. If the rubber feet are installed on the bottom of the amplifier, remove them.
2. Position two amplifiers upside down and next to each other.
3. Use the bridge plate connector and the four provided #4 machine screws to connect
the two amplifiers together (see figure2 on page6, 1).
4. Attach the two short rack ears to the amplifiers with the four provided #6 machine
screws (2).
1

NetPA U 2002 SB User Guide • Installation 6
e
XPAU 1004 SERIES
1 2 3 4
OVER
TEMP LIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
e
XPAU 1004 SERIES
Mounting
screws (4) 1
e
XPAU 1004 SERIES
1 2 34
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
ES
RS
e
1 2 3 4
OVER
TEMPLIMITER/PROTECT
SIGNAL
e
NetPAU2002SB
1 2
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
NetP
e
NetPA U 2002 SB
12
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
NetP
e
NetPA U 2002 SB
1 2
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
NetP
e
NetPAU 2002 SB
12
OVER
TEMPLIMITER/PROTECT
SIGNAL
POWERAMPLIFIERS
NetP
3
2
Figure 2. Installing NetPA U 2002 SB Bridge Plate
5. Insert the amplifiers into the rack and align the holes in the rack ears with the holes in
the rack.
6. Secure the amplifiers to the rack using the four provided 10-32 3/4” screws (see
figure2, 3).
Rack Shelf Mounting
The NetPA U 2002 SB can be mounted on a shelf using the optional RSU 129 1U Universal
Rack Shelf Kit.
Mount the amplifier with the shelf as follows:
1. If the rubber feet are installed on the bottom of the amplifier, remove them.
2. Place the amplifier on one half of the rack shelf (see figure3 on page7).
3. Align the front of the amplifier with the front of the shelf, and align the threaded holes on
the bottom of the amplifier with the holes in the rack shelf.
4. Attach the amplifier to the rack shelf with the two provided 4-40 x 3/16” machine
screws. Insert the screws from the underside of the shelf and fasten them into
diagonally opposite corners.
ATTENTION:
• Using screws longer than 3/16” damages the unit and voids the warranty.
• L’utilisation de vis plus longues que 3/16” endommagera l’unité et annulera la
garantie.
2

NetPA U 2002 SB User Guide • Installation 7
(2) 4-40 x 3/16"
Screws
RSU 129
1U Universal Rack Shelf
False faceplate
uses 2 screws.
Use 2 mounting holes
on opposite corners.
e
12 3 4
OVER
TEMPLIMITER/PROTECT
SIGNAL
NetPAU 1004 SERIES
POWERAMPLIFIERS
NetP
Figure 3. Mounting the Amplifier onto a Rack Shelf
5. Attach the false front panel, which is provided with the rack shelf, to the unoccupied
side of the rack, or install a second half rack-width device to that side.
Repeat steps 1 through 5 if a second device is being installed.
6. Attach the rack to the shelf by using the four 10-32 x 3/4” screws provided with the
shelf. Insert the screws through #10 beveled washers, then through the holes in the
rack (see figure3).
Rack Mounting Ventilation Recommendations
Excessive heat decreases the optimal lifetime of the power amplifier. An Over Temp indicator
LED on the front panel of the amplifier lights red whenever the recommended operating
temperature has been exceeded.
The NetPA U 2002 SB amplifier needs to be arranged in a rack so that the environment
around the amplifier does not reach or go beyond +122 °F (+50 °C). No more than four
amplifiers should be stacked one-on-top-of-the-other without an open space in between, as
seen in figure4.
The NetPA U 2002 SB amplifier can be arranged above or below another non-NetPA Ultra
device. The environment around the amplifier should not reach or go beyond +122 °F
(+50°C).
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
Figure 4. Ventilation
3
4

NetPA U 2002 SB User Guide • Installation 8
Flexible Conduit Adapter Kit Installation
The kit provides a way to replace the IEC power cord with a conduit, where required by local
codes.
The optional Flexible Conduit Adapter Kit includes the following parts:
• One conduit adapter plate (pre-attached), for PS 124 and XPA 1002/2001 amplifiers
• One conduit adapter plate for XPA Ultra Series and NetPA Ultra Series amplifiers (not
attached)
• One 6-foot long electrical conduit
• Three 7.5-foot 18-gauge power wires with spade connectors
• One UL rated zip tie wrap
• Three auxiliary crimp style spade connectors designed for 14- to 16-gauge wires
NOTES:
• If needed, Extron recommends using a UL-Listed crimp tool to terminate the
spade connectors. One recommended choice is a Molex crimp tool.
• The UL Listed electrical distribution box is not included with the NetPA Ultra
amplifier, the PS 124 power supply, or the Flexible Conduit Adapter Kit. The
installer is responsible for obtaining and installing the distribution box.
WARNING:
AVERTISSEMENT :
• The circuit breaker used for this connection should be rated no lower than 20
amps and no greater than 30 amps.
• Le disjoncteur utilisé pour cette connexion devrait avoir une cote comprise entre
20 et 30 amps.
• This unit must be installed in accordance with the National Electrical Code and
with all local codes.
• Cet appareil doit être installé conformément au National Electrical Code et à tous
les codes locaux.
• An all-pole mains switch with a contact separation of at least 3mm in each
pole shall be incorporated in the electrical installation of the building, The
installation shall be carried out in accordance with all applicable installation rules.
• Un interrupteur omnipolaire avec une séparation contact d’au moins
3mm dans chaque pôle, devra être incorporée dans l’installation électrique
du bâtiment. L’installation doit être réalisée conformément à toutes les règles
d’installation applicables.
• Installation and service must be performed by a qualified electrician only.
• L’installation et l’entretien doivent être effectués uniquement par un électricien
qualifié.
• Make sure the source device and the NetPA Ultra are turned off and
disconnected from the power source before you begin.
• Vérifiez que l’appareil source et le périphérique source sont éteints et
déconnectés de la source d’alimentation avant de commencer.
• To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.
• Afin de réduire les risques d’incendie ou de choc électrique, protégez cet appareil
de la pluie ou de l’humidité.

NetPA U 2002 SB User Guide • Installation 9
WARNING:
AVERTISSEMENT :
• The product is a Class I product, which must be connected only to a mains
socket outlet with a protective earthing (grounding) connection.
• Ce produit est un produit de Classe I, qui doit être connecté seulement à une
prise femelle secteur équipée d’une connexion de mise à la terre.
• The mains plug/appliance coupler is used as the disconnect device and shall
remain readily operable.
• La fiche secteur / le coupleur d’appareil est utilisé comme dispositif de
déconnexion et doit rester facilement utilisable.
• A UL-Listed electrical distribution box is recommended for the termination of the
conduit opposite the PS 124 power supply or the NetPA Ultra amplifier. See UL
Requirements.
• Un boîtier de distribution électrique certifié UL est recommandé pour la
terminaison du conduit à l’opposé de l’alimentation PS 124 ou de l’amplificateur
NetPA Ultra. Voir UL Requirements.
UL Requirements
The Underwriters Laboratories (UL) requirements listed below pertain to the installation of
the flexible conduit onto an NetPA Ultra series power amplifier or a PS 124 power supply.
• This unit must not be used beyond its rated voltage range.
• This unit must be wired to a UL-Listed distribution box.
Installing the Flexible Conduit Adapter Kit
WARNING: Electrostatic discharge (ESD) can damage IC chips even though you cannot
feel it. You must be electrically grounded before touching anything inside the NetPA
Ultra. A grounding wrist strap is recommended.
ADVERTISSEMENT : Les décharges électrostatiques peuvent endommager les puces
de circuit même si vous ne pouvez pas les sentir. Vous devez être électriquement relié
à la terre avant de toucher un élément à l’intérieur du NetPA Ultra. Un braceletde
mise à la terreest recommandé.
Install the flexible conduit to the NetPA U 2002 SB amplifier as follows:
1. Unplug the IEC power cord from the amplifier.
2. Remove the ten screws from the top, sides, and bottom of the amplifier, then slide and
lift the cover off (see figure5).
12
NetPAU 2002 SB
MIC/LINE INPUTS
1 2 1 2
STANDBY
CLASS2
WIRING
LIMITER/PROTECT
SIGNAL
STEREO
R
21
Tx Rx
RS-232
G G
3 4
100-240V 1.0A,50-60Hz
LINE OUTPUTS CONFIGREMOTE
LINK
AT
OUTPUT MODE OUTPUTS
+BR
-
8Ω/16Ω
8Ω/4Ω
70V
100V
BRIDGEDMO NO
Remove (10)
screws.
Slide cover forward and
lift straight up.
Figure 5. Removing the Cover
step 2
5

NetPA U 2002 SB User Guide • Installation 10
3. Remove the two screws holding the blue hot (line) and the brown neutral wires from the
terminal block on the PCB. Put the screws to the side to be used later (see figure6).
4. Remove the ground wire nut from the grounding stud located on the bottom of the
enclosure, as shown below. Place the wire nut with the other screws to be used later.
5. Remove the wires attached to the IEC connector from the body of the amplifier, and
slide the IEC connector and attached wires up and out of the amplifier enclosure.
Disconnect cables
and r
emove IEC
connector
.Blue Wire
Brown Wir
e
Remove nut
Figure 6. Removing the IEC Connector
6. Remove the washer at the end of the conduit (Washer-B), and remove the conduit
adapter plate that ships attached to the conduit.
Separate adapter plate
and washer from conduit
Washer-B
Washer-A
Conduit Adapter Plate
Figure 7. Removing the Existing Adapter Plate
7. Place the adapter plate that ships with the conduit kit on the conduit, with the flat side
of the plate facing the hexgonal nut (washer-A), and secure the new plate to conduit
with the washer that was removed back in step 6 (washer-B).
Place the adapter plate
with the flat side against
washer-A and secure with
washer-B.
Washer-B
Washer-A
NetPA Ultra Series Conduit
Adapter Plate
Figure 8. Secure NetPA Ultra Series Adapter Plate to Conduit
8. Thread the blue, brown, and green 18-gauge power wires that are included with the
flexible conduit adapter kit through the length of the electrical conduit.
9. Install the conduit with the new conduit plate attached into the opening from where the
IEC connector was removed in step 5 (see figure9 on the next page).
step 4
6
7
8

NetPA U 2002 SB User Guide • Installation 11
10. Connect the blue hot (line) and the brown neutral wires to the terminal block on the PCB
using the two screws removed back in step 3. Use the included zip tie wrap to secure
the two wires together close to the terminals.
WARNING: Ensure that you observe correct wire polarity. The following
illustration shows the location of the hot (line) and neutral terminals.
AVERTISSEMENT : Respecter la polarité correcte des câble. L’illustration suivante
indique l’emplacement des bornes de ligne et de neutre.
LN
Slide IEC
connector
plate and
conduit into
enclosue.
50-60Hz
100-240V 1.3A
Blue Wire
Brown Wi
re
Tie Wrap
Grounding Nut
Figure 9. Install the Conduit Assembly
11. Connect the ground wire, as shown in the figure above, to the grounding stud located
on the bottom of the enclosure using the nut removed in step 4 on page10.
12. Replace the cover of the NetPA Ultra amplifier by reattaching the ten screws removed
back in step 2 on page9.
Installing the SAK AMP SF 10C Mounting Kit for NetPA U Amplifiers
The SAK AMP SF 10C mounting kit attaches an Extron Ultra Power Amplifier
(XPA U 2002 SB, NetPA U 2002 SB, or NetPA U 8001 SUB) to the back of an SF10CSUB.
This kit enables the amplifier to be mounted as close as possible to the subwoofer, thereby
allowing for the shortest possible speaker wiring.
Use the SAK AMP SF 10C kit to mount the Extron XPA U 2002 SB to the SF 10C as
follows:
NOTE: If the SF 10C SUB is being installed into a plenum airspace, the AC input
of the power amplifier must be replaced with the Flexible Conduit Adapter Kit.
Detailed instructions for the installation of this adapter kit can be found in the
user guide for the amplifier to be installed, at www.extron.com.
1. On the SF 10C, loosen the cable conduit access plate screw and remove the plate (see
figure10 on the next page).
9

NetPA U 2002 SB User Guide • Installation 12
Alternate
Knockout
Cable Conduit
A
ccess Plate
Screw
1
1
1
Figure 10. Removing the Cable Conduit Access Plate
2. Remove the 4-pole captive screw connector that is attached to the speaker (see
figure11, 1).
3. Feed the unterminated end of the provided short cable through the back of the cable
clamp (see figure11, 1).
Cable
Clamp
Remove the jackets from the ends of the wires and
attach them to the captive-screw output connector
of the amplier.
1
1
12
2
2
A
ccess Plate
Scr
ew
Figure 11. Feeding the Cable through the Back of the Cable Clamp
4. Plug the 4-pole captive screw connector of the pre-terminated cable into the captive
screw connector on the speaker (2).
5. Reattach the cable conduit access plate to the speaker.
6. Tighten the cable clamp.
7. Attach the NetPA U 2002 SB amplifier to the SAK AMP SF 10C brackets using the
provided screws in the holes indicated in figure12 on the next page.
10
11
step 4
step 4