Kramer PA-120Net Manuale utente

P/N: 2900-301040 Rev 2 www.KramerAV.com

USER MANUAL

MODEL:

PA-240Net

240W Power Amplifier

PA-120Net

120W Power Amplifier

 
PA-120Net, PA-240Net –Contents 
i 
 
Contents 
Introduction 1 
Getting Started 1 
Overview 2 
Typical Applications 3 
Defining the PA-240Net and PA‑120Net Power Amplifier 4 
Connecting the PA-240Net 6 
Connecting the Output to a Balanced/Unbalanced Stereo Audio Acceptor 7 
Connecting a Balanced/Unbalanced Stereo Audio Source to the Balanced Input 8 
Connecting to PA-240Net via RS-232 8 
RJ-45 Pinout 8 
Connecting PA-240Net via the Ethernet Port 9 
Operating the PA-240Net 11 
Setting the DIP-Switches 11 
Adjusting the Master Volume 11 
Using the Embedded Web Pages 12 
Setting the Speaker Output Parameters 13 
Setting the Line Level Output Parameters 15 
Selecting Hi-Z Mono Settings 16 
Changing Standby Settings 16 
Setting Device Parameters 17 
Managing Web Page Security 19 
Viewing the About Page 21 
Using the Web-based Dante Controller 21 
Technical Specifications 22 
Default Communication Parameters 23 
Protocol 3000 24 
Understanding Protocol 3000 25 
Kramer Protocol 3000 Syntax 26 
Protocol 3000 Commands 27 
 
 

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Introduction

Introduction

Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world

of unique, creative, and affordable solutions to the vast range of problems that confront the

video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we

have redesigned and upgraded most of our line, making the best even better!

Getting Started

We recommend that you:

•Unpack the equipment carefully and save the original box and packaging materials for

possible future shipment.

•Review the contents of this user manual.

Go to www.kramerav.com/downloads/PA-240Net or

www.kramerav.com/product/PA-120Net to check for up-to-date user manuals, application

programs, and to check if firmware upgrades are available (where appropriate).

Achieving the Best Performance

•Use only good quality connection cables (we recommend Kramer high-performance,

high-resolution cables) to avoid interference, deterioration in signal quality due to poor

matching, and elevated noise levels (often associated with low quality cables).

•Do not secure the cables in tight bundles or roll the slack into tight coils.

•Avoid interference from neighboring electrical appliances that may adversely influence

signal quality.

•Position your Kramer PA-240Net/PA-120Net away from moisture, excessive sunlight

and dust.

This equipment is to be used only inside a building. It may only be connected to other

equipment that is installed inside a building.

Safety Instructions

Caution: There are no operator serviceable parts inside the unit.

Warning: Use only the power cord that is supplied with the unit.

Warning: Do not open the unit. High voltages can cause electrical shock! Servicing by

qualified personnel only.

Warning: Disconnect the power and unplug the unit from the wall before installing.

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Introduction

Recycling Kramer Products

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce

the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected

and recycled. To comply with the WEEE Directive, Kramer Electronics made arrangements

with the European Advanced Recycling Network (EARN) and will cover any costs of

treatment, recycling and recovery of waste Kramer Electronics branded equipment on arrival

at the EARN facility. For details of Kramer’s recycling arrangements in your country, go to our

recycling pages at www.kramerav.com/support/recycling.

Overview

Congratulations on purchasing your Kramer PA-240Net 240W Power Amplifier and/or

PA-120Net 120W Power Amplifier.

Although this user manual describes the PA-240Net it refers to both PA-240Net and

PA-120Net, unless specified otherwise.

PA-240Net is a high-performance Hi-Z (70V/100V) and Lo-Z (4/8Ω), network controllable

power amplifier featuring balanced & unbalanced inputs, and a line-level balanced output.

This powerful amplifier is suitable for large-scale applications.

PA-240Net is housed in a desktop sized enclosure and can be setup using one of the

following methods:

•Mount the unit in a rack using the recommended rack adapter

(see www.kramerav.com/product/PA-120Net).

•Attach the rubber feet and place the unit on a flat surface.

PA-240Net provides exceptional quality and user-friendly operation.

PA-240Net features control via the Dante™IP control matrix or Kramer Protocol 3000 via

RS-232 or USB connections

Exceptional Quality

•For PA-240Net:

▪A single channel of 240W into a 70V/100V line.

▪2 channels of 120W into 4/8Ω.

•For PA-120Net:

▪A single channel of 120W into a 70V/100V line.

▪2 channels of 60W into 4/8Ω.

•Individual input mix, EQ and HPF (High-Pass Filter) per output.

•Built-in 3-band parametric EQ.

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Introduction

User-friendly Operation

•Status LED indicators for the selected input, output muted and clipped signal on the

output.

•Over-current, short circuit or over-heat protection –The PROTECT LED lights and the

device shuts down until correct operational conditions are regained.

•Dante LED indicator for Dante network availability.

•Digital audio normal operation LED.

•Auto-standby with adjustable threshold.

•Controllable via RS-232 and IP.

Typical Applications

The PA-240Net is ideal for the following typical applications:

•Medium to large meeting rooms.

•Auditoriums and lecture halls.

•Court rooms.

•Retail stores and shopping centers.

•Hotel lobbies.

•Transportation hubs.

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Defining the PA-240Net and PA-120Net Power Amplifier

Defining the PA-240Net and

PA-120Net Power Amplifier

This section defines the PA-240Net.

Feature

Function

ON LED

Lights green when powered on, orange when in standby.

INPUT 1 LED

Lights green when a signal is present on input 1.

INPUT 2 LED

Lights green when a signal is present on input 2.

MUTE

Lights red when the speaker output is muted, off when unmuted.

CLIP LED

Lights red when the signal is clipped on the output and creating distortion.

(When clipping is detected, lower the volume until the LED turns off.)

PROTECT LED

Lights red in case of over-current / short / over-heating.

The device powers down until operation conditions are corrected and

then powers up again.

SYS LED

Lights green when Dante network is available.

Lights red if an error has occurred.

SYNC LED

Lights green for digital audio normal operation.

Flashes green when this unit is the Master clock.

Lights red if an error has occurred.

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Defining the PA-240Net and PA-120Net Power Amplifier

Feature

Function

Dante RJ-45 Port

Connect to the Dante™ audio source via the Network. By default, DHCP

is enabled.

AUDIO IN

Balanced/Unbalanced

Stereo Audio 5-pin

Terminal Block Connector

Connect to a line-level, balanced/unbalanced, stereo audio source.

LINE OUT Balanced

Stereo Audio 5-pin

Terminal Block Connector

Connect to a balanced, stereo audio acceptor (for example, amplified

speakers).

FACTORY DEFAULT

Button

Press to return to the factory default settings, including all the

configurations and network settings.

VOLUME Attenuator

Master volume for speaker output –rotate to set the maximum amplifier

volume.

ETHERNET RJ-45

Connector

Connect to an ETHERNET LAN to control the PA-240Net via built-in web

page. By default, IP is fixed at 192.168.1.39.

RS-232 (G, Tx, Rx) Port

Connect to an RS-232 connector on AV equipment or a PC or other

Serial Controller.

Hi-Z/Lo-Z and 100V/70V

DIP-Switches

DIP-Switch 1: Set to Hi-Z for high impedance or Lo-Z for low impedance.

DIP-Switch 2: In Hi-Z mode, select 70V or 100V operation.

Lo-Z and Hi-Z Speaker

Output Terminal Block

Connector

Lo-Z –Connect left +, left -, right +, and right - to Lo-Z (4Ω or 8Ω)

speakers.

Hi-Z –connect Hi-Z and COM to 70V or 100V Hi-Z speakers.

In Hi-Z mode, the output is mono and can be selected via webpage –Left

channel to mono, or stereo to mono summing

Power Connector with

Fuse

AC connector, enabling power supply to the unit.

Mains Power Switch

Switch for turning the device on or off.

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Connecting the PA-240Net

Connecting the PA-240Net

Always switch off the power to each device before connecting it to your PA-240Net. After

connecting your PA-240Net, connect its power and then switch on the power to each device.

To connect the PA-240Net as illustrated in the example in Figure 1:

1. Connect the balanced stereo audio source to the AUDIO IN 5-pin terminal block

connector (for example, a Kramer Switcher/Scaler).

2. Connect the LINE OUT balanced stereo audio 5-pin terminal block connecter to a

balanced stereo acceptor (for example, an additional PA-240Net device).

3. Connect the Hi-Z OUT or Lo-Z OUT 4-pin terminal block connector as follows:

▪For Hi-Z connection: connect Hi-Z and COM terminal blocks to the + and –terminals

of a mono speaker (for example, the Galil 8-C ceiling speakers, daisy chained).

The speakers either output the left side (L+, L-) of the audio input or the stereo input

reduced to a mono signal (see Selecting Hi-Z Mono Settings on page 16).

▪For Lo-Z connection: connect the L+ and L- connectors to the left-side speaker and

the R+ and R- connectors to the right-side.

4. Set the Hi-Z/Lo-Z and 100V/70V DIP-Switches :

▪For Hi-Z operation: Set DIP-switch 1 to Hi-Z and then set DIP-switch 2 to 70V or

100V.

▪For Lo-Z operation: Set DIP-switch 1 to Lo-Z.

5. Connect the Dante RJ-45 connector to any available IP network.

6. If required, connect:

▪A PC via RS-232 , see Connecting to PA-240Net via RS-232 on page 8.

▪The ETHERNET port , see Connecting PA-240Net via the Ethernet Port on

page 9.

7. Connect the power cord (not shown in Figure 1).

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Connecting the PA-240Net

Figure 1: Connecting to the PA-240Net Rear Panel

Connecting the Output to a Balanced/Unbalanced

Stereo Audio Acceptor

The following are the pinouts for connecting the output to a balanced or unbalanced stereo

audio acceptor:

Figure 2: Connecting the output to a balanced

stereo audio acceptor

Figure 3: Connecting the output to an unbalanced

stereo audio acceptor

Kramer Electronics Ltd.

PA-120Net, PA-240Net –Connecting the PA-240Net

Connecting a Balanced/Unbalanced Stereo Audio

Source to the Balanced Input

The following are the pinouts for connecting a balanced or unbalanced stereo audio source to

the balanced input:

Figure 4: Connecting a balanced stereo audio

source to the balanced input

Figure 5: Connecting an unbalanced stereo audio

source to the balanced input

Connecting to PA-240Net via RS-232

You can connect to the PA-240Net via an RS-232 connection using, for example, a PC.

From the RS-232 9-pin D-sub serial port connect:

•Pin 2 to the TX pin on the PA-240Net RS-232 terminal block.

•Pin 3 to the RX pin on the PA-240Net RS-232 terminal block.

•Pin 5 to the G pin on the PA-240Net RS-232 terminal block.

RJ-45 Pinout

PIN EIA /TIA 568B

Wire Color

Orange / White

Orange

Green / White

Blue

Blue / White

Green

Brown / White

Brown

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