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 RGBSystems, Inc. or Extron (see the
current list of trademarks on the Terms of Use page at www.extron.com):
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to the
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part15 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.
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.
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 blessuremineure.
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.
RS-232 Port .................................................. 86
NetPA U 2002 SB User Guide • Contentsviii
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
Features
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.
• 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 • Introduction1
• 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 page7).
• 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 • Introduction2
• 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.
• 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 • Introduction3
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 • Installation4
Rack Mounting
Rack Ear 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.
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 figure1,
1
).
1
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NetPA U 2002 SB
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 figure2 on page6, 1).
4. Attach the two short rack ears to the amplifiers with the four provided #6 machine
screws (2).
NetPA U 2002 SB User Guide • Installation5
e
ES
RS
Rack Shelf Mounting
Mounting
screws (4)
1
3
OV
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12
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NetPA U 2002 SB
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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
figure2, 3).
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 figure3 on page7).
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.
NetPA U 2002 SB User Guide • Installation6
RSU 129
1U Universal Rack Shelf
False faceplate
uses 2 screws.
OVER
TEM
P
e
1
2 3 4
LIM
I
T
ER/P
SI
R
GNA
O
T
EC
L
T
NetP
P
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R
AMP
L
IF
IE
R
S
4 SERI
E
S
Use 2 mounting holes
on opposite corners.
N
et
P
A
U 1
00
(2) 4-40 x 3/16"
Screws
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 figure3).
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 figure4.
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
Figure 4. Ventilation
Vent Space
Vent Space
NetPA U 2002 SB User Guide • Installation7
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 3mm 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
3mm 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 • Installation8
WARNING:
1
2
NetPA U 2002 SB
MIC/LINE INPUTS
1 2
1 2
STANDBY
CLASS 2
WIRING
LIMITER/PROTE
CT
SIGN
A
L
STE
RE
O
R
21
Tx
Rx
RS-2
3
2
G G
3 4
1
0
0-2
4
0V
1.0
A, 5
0
-
60Hz
LINE
OUTPUTS
CONFIGREMOTE
LINK
AT
OUTPUT MODE
OUTPU
TS
+
BR
-
8Ω/16
Ω
8Ω/4Ω
70V
100V
BRIDG
ED
MONO
Remove (10)
screws.
Slide cover forward and
lift straight up.
AVERTISSEMENT :
• The product is a Class I product, which must be connected only to a mains
• Ce produit est un produit de Classe I, qui doit être connecté seulement à une
• The mains plug/appliance coupler is used as the disconnect device and shall
• La fiche secteur / le coupleur d’appareil est utilisé comme dispositif de
• A UL-Listed electrical distribution box is recommended for the termination of the
• Un boîtier de distribution électrique certifié UL est recommandé pour la
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.
socket outlet with a protective earthing (grounding) connection.
prise femelle secteur équipée d’une connexion de mise à la terre.
remain readily operable.
déconnexion et doit rester facilement utilisable.
conduit opposite the PS 124 power supply or the NetPA Ultra amplifier. See UL Requirements.
terminaison du conduit à l’opposé de l’alimentation PS 124 ou de l’amplificateur
NetPA Ultra. Voir UL Requirements.
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 figure5).
Figure 5. Removing the Cover
NetPA U 2002 SB User Guide • Installation9
3. Remove the two screws holding the blue hot (line) and the brown neutral wires from the
Disconnect cables
and r
connector
e
Washer-B
Place the adapter plate
terminal block on the PCB. Put the screws to the side to be used later (see figure6).
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.
emove IEC
.
Blue Wire
Brown Wir
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
Conduit Adapter Plate
Washer-A
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).
with the flat side against
washer-A and secure with
Washer-B
Washer-A
NetPA Ultra Series Conduit
Adapter Plate
washer-B.
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 figure9 on the next page).
NetPA U 2002 SB User Guide • Installation10
10. Connect the blue hot (line) and the brown neutral wires to the terminal block on the PCB
re
Tie Wrap
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.
Blue Wire
Slide IEC
connector
plate and
conduit into
enclosue.
100-240V 1.3A
50-60Hz
L
N
Brown Wi
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 page10.
12. Replace the cover of the NetPA Ultra amplifier by reattaching the ten screws removed
back in step 2 on page9.
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 SF10CSUB.
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
figure10 on the next page).
NetPA U 2002 SB User Guide • Installation11
Cable Conduit
A
ccess Plate
2
A
Scr
111
Screw
Alternate
Knockout
Figure 10. Removing the Cable Conduit Access Plate
2. Remove the 4-pole captive screw connector that is attached to the speaker (see
figure11, 1).
3. Feed the unterminated end of the provided short cable through the back of the cable
clamp (see figure11, 1).
2
Cable
Clamp
111
2
ccess Plate
ew
Remove the jackets from the ends of the wires and
attach them to the captive-screw output connector
of the amplier.
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 figure12 on the next page.
NetPA U 2002 SB User Guide • Installation12
Attach the amplier with
screws (4 places).
8Ω/4Ω
OUTPUTS
OUTPUTS
8Ω/4Ω
CLASS 2 WIRING
SIGNAL
LIMITTER/PROTECT
TEMP
OVER
R
2
LINE OUT
1
2
LINE IN
1
G
REMOTE
STANDBY
G
RS-232
Rx
Tx
CONFIG
AT
--1.7A, 50-60 Hz
NetPA U 8001 SUB
100-240V
Figure 12. Attaching the Amplifier to the SAK AMP SF 10C Brackets
Attach the brackets (with the amplifier attached) to the screw holes on the end of the
SF 10C SUB speaker containing the cable conduit access plate, using the provided
screws (see figure10 on page12).
NetPA U 2002 SB User Guide • Installation13
Mounting Sc
(4 places)
LIMITT
ER
/PROTECT
SIGNAL
R
OVER
TEMP
1
2
1
2
RS-232
STANDBY
Tx
Rx
G
G
AT
CONFIG
LINE OUT
LINE IN
REMOTE
CLASS 2 WIRING
OUTPUTS
8Ω/4Ω
OUTPUTS
8Ω/4Ω
100-240V
--1.7A, 50-60 Hz
NetPA U 8001 SUB
rews
Figure 13. Attaching the Brackets and Amplifier to the SF 10C SUB
Subwoofer
8. Remove the jackets from the ends of the wires of the short cable that was attached to
the speaker in step 4 on page12.
9. Wire the green captive screw connector provided with your amplifier to the unterminated
ends of the cable wires (see figure14 on page15).
10. The NetPA U 2002 SB has 4-pole connectors.
• The red wire connects to the Channel 1 + pin.
• The black wire connects to the Channel 2 + pin.
NetPA U 2002 SB User Guide • Installation14
1
2
CLASS 2 WIRING
G
G
STANDBY
BR
8Ω/4Ω
OUTPUTS
OUTPUTS
8Ω/4Ω
CLASS 2 WIRING
ECT
PROT
TER/
SIGNAL
LIMIT
TEMP
OVER
R
2
LINE OUT
1
2
LINE IN
1
G
REMOTE
STANDBY
G
RS-232
Rx
Tx
CONFIG
AT
--1.7A, 50-60 Hz
NetPA U 8001 SUB
100-240V
XPA U 2002 SB
2
1
Figure 14. Connecting the Amplifier to the Subwoofer
NetPA U 2002 SB User Guide • Installation15
Operation
NetPA U 2002 SB
This section describes the operation of the NetPA U 2002 SB Amplifiers. Topics include:
• Front Panel Features
• Rear Panel Features
• Operation
Front Panel Features
1
23
OVER
TEMP
Power/Standby Indicator
1
Figure 15. NetPA U 2002 SB Front Panel
NOTE: The front panels of all models in the NetPA Ultra Series function identically.
Power/Standby LED — A single LED that lights green when the unit is on and active,
1
and lights amber when:
• The unit is powering up and booting.
• The unit is in standby mode, which turns off all outputs from the amplifier although
• DC voltage is detected (see Troubleshooting on page105).
21
LIMITER/PROTECT
SIGNAL
Over Temp Indicator
2
the amplifier still receives power.
This LED flashes amber when an “Identify Device” request is sent to the unit via
Dante Controller, and the Link Indicator LED located on the rear panel blinks green.
Once the cycle has been completed, the LED returns to normal.
NOTE:Power indicator LED may light amber for a short time after the removal of AC
power. This is normal.
Channel Status LEDs
3
NetPA U 2002 SB
Over Temp Indicator — A single LED that lights red when the amplifier has exceeded
2
the maximum recommended operating temperature. The amplifier recovers once the
unit has sufficiently cooled down (see Troubleshooting on page105).
Channel Status LEDs — Two rows of two LEDs on the NetPA U 2002 SB that
3
represent amplifier channels.
• Limiter/Protect LED — This LED lights red when the channel is in protection
mode, which is triggered by any of the limiter protection circuits such as:
• When the channel is in an overload situation.
• When the output short circuits.
NetPA U 2002 SB USer Guide • Operation16
• Signal LED — This LED lights green when the output signal from a DSP channel
3
9
S
Balanced Input
Unbalanced Input
Rear Panel Features
1
• When digital clipping is detected on the output of the DSP going into the
amplifier channel.
• When the channel overheats.
that goes to an amplifier channel crosses the DSP signal detection threshold. The
threshold is -59dBFS.
NOTE:The LEDs are also located on the rear panel.
2
4
6
7
85
1212
MIC/LINE INPUTS
100-240V 1.0A, 50-60Hz
NetPA U 2002 SB
IEC Power Receptacle
1
Mic/Line Inputs
2
Channel Status Indicators
3
34
LINE OUTPUTS
LIMITER/PROTECT
SIGNAL
Line Outputs
4
Remote Ports
5
USB Config Port
6
1 2
BRIDGED MONO
8Ω/16Ω
8Ω/4Ω
STEREO
OUTPUT MODE
70V
100V
Tx Rx
RS-232
STANDBY
G G
R
LINK
AT
CONFIGREMOTE
CLASS 2
Reset Button with Reset LED
7
AT Port with Link LED
8
Speaker Outputs
9
WIRING
+
BR
OUTPUTS
-
21
Figure 16. NetPA U 2002 SB Amplifier Rear Panel
NOTE:The rear panels of other NetPA Ultra Series amplifiers function identically.
IEC Power Receptacle — Connect a standard IEC AC power cord here for power
1
input
(100 VAC to 240 VAC, 50-60 Hz) to the internal, autoswitching power supply. This
connector may be replaced by the Flexible Conduit Adapter Kit (see Flexible Conduit Adapter Kit Installation on page16).
Mic/Line Inputs — Connect up to four 3-pole 3.5 mm captive screw connectors to
2
input up to four balanced or unbalanced line level or microphone level signals.
NOTE:Inputs remain active during standby. Phantom power is not available on any of the
inputs.
Tip
Ring
leeve
Tip
Sleeve
Jumper
Figure 17. Captive Screw Connector Wiring
Channel Status Indicators — Two double-stacked LEDs. The top red LEDs are used
3
for Limiter/Protect status, and the bottom green LEDs are for signal status. The LEDs
function the same as the LEDs on the front panel.
NetPA U 2002 SB User Guide • Operation17
Line Outputs — (see figure16 on page17) Connect up to two 3-pole 3.5mm
Balanced Mono OutputUnbalanced Mono Output
Do not tin
the wires!
Tip
Slee ve
Ring
Tip
Sleeve
4
captive screw connectors in order to output up to two balanced or unbalanced line level
output signals.
NOTE: The outputs do not remain active when the amplifier is in standby. For
applications where the line and Dante outputs may be used independently during
long periods of no amplifier activity, such as when the unit is being used as both
an amplifier and off/on-ramp to the Dante network, the auto-standby timer must
be disabled and the amplifier must not be forced into standby.
Figure 18. Captive Screw Connector Wiring
Remote Ports — (see figure16 on page17) Connect a 3.5 mm 3-pole captive
5
screw connector to the RS-232 port to remotely monitor and control the unit. Connect
a 3.5mm 2-pole captive screw connector to the standby port to remotely place the
amplifier in standby mode (see figure 16).
STANDBY mode is activated when the Standby pin is connected to the G pin.
Standby mode turns off all the outputs, although the amplifier still receives power. The
power LED on the front panel lights amber when the amplifier is in Standby mode.
The amplifier enters Standby mode when one of the following happens and are
prioritized, in order, as follows:
• Activation of the remote standby port (done by shorting the STANDBY pin to the
ground pin).
• Through the ‘PSAV’ SIS command, or through DSP Configurator (accessed via
Tools>Configure Standby Settings).
• After 25-minutes of inactivity.
NOTE: The inactivity timer can be disabled, and the standby pin and SIS Command
can continue to force the unit into standby mode (see Force standby on on
page93 in the SIS Command section to learn how to force standby mode).
Do not tin
the wires!
Figure 19. Captive Screw Connector Wiring
USB Config Port — (see figure16 on page17) Connect a mini USB type B
6
connector between this port and a computer for local configuration, and montoring the
amplifier.
Reset Button with Reset LED — (see figure16 on page17) Press this recessed
7
button to reset the amplifier. There are various reset modes. The reset LED indicates
which reset mode has been accessed.
• Mode 1 — Hold the Reset button while applying power to restore the unit
firmware back to the default factory firmware. This recovers a unit that has incorrect
code or updated firmware running. All user settings are maintained.
Rx
Tx
G
G
STANDBY
RS-232
Tx Rx
G
STANDBY
G
REMOTE
NetPA U 2002 SB User Guide • Operation18
• Mode 3 — To cause an absolute system reset of the Dante module back to factory
default conditions:
With power on, press and hold the reset button for about 3 seconds until the reset
LED blinks one time (once at 3 seconds), then release and within 1 second press
Reset momentarily (<1second).
Following this reset, the Dante module proceeds to its normal boot sequence. This
reset:
• Restores the IP Configuration to default settings.
• Clears all Dante audio channel routing.
• Sets the Dante device name and channel names to default.
• Mode 5 — With power on, press and hold the reset button for about 9 seconds
until the reset LED blinks three times (once at 3 seconds, again at 6 seconds, again
at 9 seconds), then release and press Reset momentarily ( < 1 second).
Mode 5 resets the device settings while preserving Dante specific settings such as
IP configuration, routing, device name, channel names, and sampling rate.
This reset:
a. Sets mix-points to unity gain (0 dBFS) and the following connections are made.
• AT input 1 is routed to amp output 1.
• AT input 2 is routed to amp output 2.
• AT input 1 is routed to line output 1.
• AT input 2 is routed to line output 2.
b. Unmutes amp outputs and sets to -24 dB.
c. Unmutes line and AT outputs and sets them to unity gain.
d. Sets trim blocks to unity gain.
e. Unmutes gain blocks and sets to unity gain.
f. Removes any inserted or active DSP.
g. Unmutes all line inputs and sets them to unity gain.
h. Clears all preset and group master memory.
i. Turns off status monitoring of unsolicited responses.
j. Enables standby timer.
k. Ensures unit will not be in standby mode.
l. The output mode will be set to 8Ω stereo.
The Reset LED flashes 3 times in quick succession during the reset.
AT Port with Link LED— (see figure16
8
on page17) Connect one RJ-45
connector to communicate with a Dante
network. The port uses the Dante protocol,
but can be configured for the AES 67
standard in Dante controller. It is one of the
ways the amplifier communicates with DSP
Configurator.
The Link LED is locked to the Dante
sync signal.
Pins:
12345678
Insert Twisted
Pair Wires
RJ-45
Connector
Crossover Cable
(for direct connection to a PC)
End 1 End 2
Pin Wire Color Pin Wire Color
1 white-orange 1 white-green
2 orange 2 green
3 white-green 3 white-orange
4 blue 4 blue
5 white-blue 5 white-blue
6 green6 orange
7 white-brown 7 white-brown
8 brown8 brown
T568BT568A
A cable that is wired as TIA/EIA T568A at one
end and T568B at the other (Tx and Rx pairs
reversed) is a "crossover" cable.
NetPA U 2002 SB User Guide • Operation19
The LED has three states in normal operation:
• Blinking (1 Hz) Green: Unit generates network audio clock. The unit is the primary
clock.
• Lit Solid Green: Unit locked to network audio clock. The unit is following the
network audio clock.
• Off: Unit not locked to network audio clock.
Go to AT Port on page19 for more details on this port.
Speaker Outputs — (see figure16 on page17) Connect one 4-pin, 5 mm captive
9
screw connector for up to two channels of speaker output. Each port has a screw
flange to secure the plug to the connector. Observe the correct polarities for each
channel as shown below.
ATTENTION:
• You must use Class 2 wiring for this output to comply with UL requirements.
• Vous devez utiliser le câblage de classe 2 pour cette sortie an de vous conformer
aux exigences UL.
• Do not tie channel output pins to each other or to ground. Doing so will short out
the outputs, damage the amplifier, or both.
• Ne pas lier les sorties 1 et 2 des canaux entre elles ou à la terre. Les sorties
pourraient être court-circuitées et/ou l’amplificateur pourrait être endommagé.
• To avoid risk of damage to the amplier or the speakers, always check that low-
impedance speaker loads (4 Ω/8 Ω/16 Ω) and high-impedance speaker loads (70
V/100 V) are appropriately wired to the amplier for the desired mode.
• Pour éviter les risques de dommages à l’amplicateur ou aux haut-parleurs,
vériez toujours que les charges de haut-parleur à faible impédance (4 Ω/8 Ω/16 Ω)
et les charges de haut-parleurs à haute impédance (70 V/100 V) sont correctement
câblées à l’amplicateur pour le mode souhaité.
To wire the speaker output, do the following:
Each port has a screw flange to secure the plug to the connector. Follow the
instructions below to configure the rear panel for the NetPA U 2002 SB:
• For stereo modes, connect a 4-pin, 5 mm captive screw connector for two
channels of speaker outputs. The port has a screw flange to secure the plug to the
connector.
• For mono modes, connect the same 4-pin, 5 mm captive screw connector but wire
only the middle speaker output pins for a single channel of speaker output (see
figure20 on the next page to learn how to wire the speaker output).
NetPA U 2002 SB User Guide • Operation20
Stereo 8Ω or 4Ω Output Modes
Bridged Mono 8Ω/16Ω/70V/100V Modes
Stereo 8Ω or 4Ω
Speaker Loads
Wire output connector
to speaker loads as
shown to the right
1
2
CLASS 2 WIRING
OUTPUTS
BR
CH 2
CH 1
Mono 8Ω, 16Ω, 70V,
or 100V Speaker Loads
Wire output connector
to mono speaker load
as shown to the right
1
2
CLASS 2 WIRING
OUTPUTS
BR
CH 1
Operation
Default
Figure 20. Securing Speakers Wire with Captive Screws
The section below details some of the NetPA Ultra Series amplifiers features.
The following are the NetPA U 2002 SB amplifier defaults right out of the box:
• Amplifier output mode is set to stereo,
8ohms.
• All mix-points and trim blocks are set to
unity gain.
• All line outputs, AT outputs, gain blocks,
and line inputs are unmuted and set to
unity gain.
• Routing
AT Inputs are routed to their respective amp and line outputs (ex: AT Input 1 routed to
amp output 1 and line output 1.)
NOTE: The attenuation blocks of the amplifier outputs are set to -24 dB in order to
prevent an excessive amount of signal from being passed to the speaker before the
amplifier can be properly configured.
• Standby timer is enabled and unit is not
in standby.
• Unsolicited response status monitoring
is disabled.
• Attenuation blocks are unmuted and
set to -24 dB for amplified outputs, 0
dB for line and AT outputs.
NetPA U 2002 SB User Guide • Operation21
AT Port
The NetPA U 2002 SB supports 2 AT inputs and 2 AT outputs (these are not shared with the
analog line outputs). Audio coming in from the mic/line inputs can be placed onto the Dante
network, and the AT outputs can be received by any other device as long as it’s using the
Dante protocol. The port supports bi-directional channels of 24 bit/48 kHz digital audio.
NOTE: The AT port can be set to 44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz, however the
signal going through the DSP is converted to and processed at 48 kHz.
The AT port allows latency to be set per device at 1.0 ms, 2.0 ms, or 5.0 ms.
Dante Controller provides control and configuration to the entries listed below. However,
Dante Controller is not limited to the entries.
• Dante channel routing
• Dante channel naming
• Dante reboot
• Device naming
• Setting network master clock
• Get network and device Dante status
• Set DHCP mode and device IP address
NOTE:For applications where the line and Dante outputs may be used independently during long
periods of no amplifier activity, such as when the unit is being used as both an amplifier and off/
on-ramp to the Dante network, the auto-standby timer must be disabled and the amp must not
be forced into Standby mode.
• Setting sample rate to one of the
following frequencies:
• 44.1 kHz
• 48 kHz
• 88.2 kHz
• 96 kHz
Standby Modes
The amplifier may be placed into 3 standby modes through SIS, DSP Configurator or a
control system. The unit may also be forced into standby through the rear panel contact
closure.
To change the Standby settings via DSP Configurator:
Navigate to the Tools menu and select Configure Standby Settings, then make
your selection to change the settings.
Standby Modes
• Disable Auto-Standby Timer = Mode 0
• Enable Auto-Standby Timer = Mode 1
• Force Standby Mode = Mode 2
NetPA U 2002 SB User Guide • Operation22
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