Extron NetPA Ultra User Manual

IMPORTANT:

Go to www.extron.com for the

complete user guide, installation

NetPA Ultra Series • Setup Guide

instructions, and specifications.

The NetPA Ultra Series is a series of DSP and Dante®-enabled audio power ampliﬁers for use in a low-impedance speaker systems or high-impedance line distribution audio systems.

NetPA U 1002 models deliver two channels of 100 watts, and is available in the following conﬁgurations:

• NetPA U 1002 (8 Ω/4 Ω) • NetPA U 1002-70V (70 V) • NetPA U 1002-100V (100 V)

NetPA U 1004 models deliver four channels of 100 watts, and is available in the following conﬁgurations:

• NetPA U 1004 (8 Ω/4 Ω) • NetPA U 1004-70V (70 V) • NetPA U 1004-100V (100 V)

The NetPA Ultra Series ampliﬁers all feature a compact 1U, 1/2-rack enclosure. The ampliﬁers have mounting holes for 9” and deeper rack shelves, and are plenum rated with an optional ﬂex conduit adaptor. The units are convection cooled.

This guide provides instructions for an experienced installer to set up and operate these power ampliﬁers. The setup guide features the NetPA U 1004, but the other ampliﬁers are installed in the same manner. For full installation, conﬁguration, and operation details, see the NetPA U 1004 Series User Guide available at www.extron.com.

Installation Steps

Step 1 — Mounting onto a Rack

Turn off all of the equipment and disconnect it from the power source. Mount the ampliﬁer as required. They can be securely mounted in a variety of locations, using optional Extron Mounting Brackets and accessories (see the Extron website for compatible optional mounting accessories) or using the included 3-piece bracket system. The brackets do not come attached to the ampliﬁer.

The following sections describe two methods of rack mounting the ampliﬁers.

Rack Ear Mounting (Single Unit)

All of the ampliﬁers ship with a set of rack ears, so these half rack-width ampliﬁers can be installed in a full rack-width space. Mount the ampliﬁer with rack ears as follows:

1. If the ampliﬁer has its rubber feet installed, remove them.

2. Attach the rack brackets (one long and one short) to the sides with the four provided #6 machine screws (

3. Insert the ampliﬁer into the rack and align the holes in the rack ears with the holes on the rack.

4. Secure the ampliﬁer to the rack using the four provided 10-32 x 3/4” screws (

E R

NetP

TEMP

2 3

P O

E R

AMP

L IF

IE R

LIMITER/PROTECT

SIGNAL

NetP

POWER A

MPL

IFIER

N e

t P

A U 1

4 S

P O

AMP

L IF

IE R

NetP

O VE

R T E

1 2 3

I M

IT ER/

P R

OT N A

NetP

O W

E R

A M

P L

IFIE

R S

NetPA U 1004 SERIES

Figure 1. NetPA U 1004 Rack Ear Mounting

NetPA Ultra Series • Setup Guide (Continued)

The NetPA Ultra Series ampliﬁers all ship with a bridge plate connector to connect two ampliﬁers together and form full rack-width unit. Mount and connect two ampliﬁers as follows:

1. If the ampliﬁer has its rubber feet installed, remove them.

2. Position two ampliﬁers upside down and next to each other as shown below.

3. Use the bridge plate connector and the four provided #4 machine screws to connect the two units together (

4. Attach the two short rack ears to the units with the four provided #6 machine screws (

5. Insert the ampliﬁer into the rack and align the holes in the rack ears with the holes on the rack.

6. Secure the ampliﬁer to the rack using the four provided 10-32 x 3/4” screws (

Mounting screws (4)

OVER

NetPA U 1004 SERIES

LIFIERS

POWER AMP

Net

SIGNAL

LIMITER/PROTECT

1 2 3 4

TEMP OVER

NetPA U 1004 SERIES

R AMPLIFIERS

POW

Net

SIGNAL

LIMITER/PROTECT

1 2 3

TEMP OVER

TEMP

LIMITER/PROTECT

SIGNAL

NetPA U

POWER AMPLIFIERS

LTRA

NetPA U 1002 SERIES

OVER TE

1 2 3 4

LIMITER/PROTECT

SIGNAL

NetPA U

LTRA

WER A

M PLIF

IERS

NetPA U 1004 SERIES

Figure 2. NetPA U 1004 Bridge Plate Rack Mounting

Ventilation Recommendation

Excessive heat decreases the optimal lifetime of the power ampliﬁer. An Over Temp LED indicator on the front panel of the ampliﬁer lights red when the recommended operating temperature has been exceeded.

The NetPA Ultra ampliﬁers need to be arranged in a rack environment, so that the environment around the ampliﬁer around does not reach or exceed +122 °F (+50 °C). No more than four ampliﬁers should be stacked one-on-top-of-the-other without an open rack space in between as seen in the image to the right.

The NetPA Ultra ampliﬁers can also be arranged above or below a non-NetPA Ultra device.

Step 2 — Captive Screw Audio Cable Wiring

Wire the captive screw connectors to the input or output as shown in the following ﬁgures.

Tip

Ring

leeve

Balanced Input

Figure 3. Input Wiring

Tip Sleeve

Jumper

Unbalanced Input

Tip

Ring

leeve

Balanced Output

Figure 4 Output Wiring

Vent Space

Tip

Sleeve

Unbalanced Output

Vent Space

Do not tin the wires!

NOTE:

• Balanced or unbalanced stereo sources can be connected with 6-pole connectors.

• When using the 5-pole CSR 6 captive screw to RCA adapter, connect it so the far left plug is inserted into the far left jack of the

6-pole input.

ATTENTION:

• For unbalanced audio outputs, connect the sleeves to the ground contact. DO NOT connect the sleeves to the negative

(-) contacts.

• Pour l’audio asymétrique, connectez les manchons au contact au sol. Ne PAS connecter les manchons aux contacts

négatifs (–).

Step 3 — Remote Ports

Rx Tx

Do not tin the wires!

STANDBY

Figure 5 Remote Volume Control and Standby Ports

• Standby mode is forced when the Standby pin is connected to the second G pin. The power LED on the front panel lights

amber when the ampliﬁer is in Standby mode indicating that the ampliﬁer is still receiving power despite the fact that it has turned off all the outputs.

NOTE: The enabling and disabling of the auto-standby timer is handled through SIS or DSP Configurator. For more

details, consult the NetPA Ultra Series User Guide.

• Connect a 3.5 mm 3-pole captive screw connector to remotely control the volume via SIS commands, and connect a 3.5 mm,

2-pole captive screw to place the amplifier into Standby mode.

Protocol for the RS-232 port:

• 38,400 baud • 1 stop bit • 8 data bits • no parity

Step 4 — Speaker Wiring

Connect a four 4-pin, 5 mm captive screw connector for two channels of speaker output on the NetPA U 1002 group of amplifiers and up to four channels on the NetPA U 1004 group of amplifiers. Each port has a screw flange to secure the plug to the connector. Figure 6 shows how to wire the captive screw connector.

RS-232

Tx Rx

STANDBY

REMOTE

+B R—

CLASS 2

WIRING

100V OUTPUTS

Figure 6 Speaker Output Port and Wiring Diagram

ATTENTION:

• 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 ampliﬁer or the speakers, always connect low-impedance speaker loads (8 Ω/4 Ω) and

high-impedance speaker loads (70 V) to the appropriately marked output connectors on the ampliﬁer.

• Pour éviter tout risque de détérioration de l’ampliﬁcateur ou des enceintes, connectez toujours les charges de l’enceinte

faible impédance (8 Ω/4 Ω) et les charges de l’enceinte haute impédance (70 V) aux connecteurs de sortie correctement identiﬁés sur l’ampliﬁcateur.

NOTE: You must use Class 2 wiring for this output to comply with UL requirements.

+ 5 hidden pages

Extron NetPA Ultra User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual