Kramer PA-120Z Manuel utilisateur

P/N: 2900-300802 Rev 1 www.kramerAV.com

USER MANUAL

MODELS:

PA-240Z

240W Power Amplifier

PA-120Z

120W Power Amplifier

PA-240Z - Contents

Contents

Introduction 1

Getting Started 1

Overview 2

Typical Applications 3

Defining the PA-240Z 240W Power Amplifier 4

Connecting the PA-240Z 6

Connecting the Output to a Balanced/Unbalanced Stereo Audio Acceptor 7

Connecting a Balanced/Unbalanced Stereo Audio Source to the Input 8

Connecting to PA-240Z via RS-232 8

RJ-45 Pinout 8

Connecting PA-240Z via the Ethernet Port 9

Operating the PA-240Z 12

Setting the DIP-Switches 12

Adjusting the Master Volume 12

Using the Embedded Web Pages 13

Setting the Speaker Output Parameters 15

Setting the Line Level Output Parameters 16

Selecting Hi-Z Mono Settings 17

Changing Standby Settings 18

Setting Device Parameters 19

Managing Web Page Security 22

Viewing the About Page 26

Technical Specifications 27

Default Communication Parameters 28

Protocol 3000 29

Understanding Protocol 3000 30

Kramer Protocol 3000 Syntax 31

Protocol 3000 Commands 32

Kramer Electronics Ltd.

PA-240Z - 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!

Our 1,000-plus different models now appear in 15 groups that are clearly defined by function:

GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; GROUP 3: Control

Systems; GROUP 4: Format & Standards Converters; GROUP 5: Range Extenders &

Repeaters; GROUP 6: Specialty AV Products; GROUP 7: Scalers; GROUP 8: Cables and

Connectors; GROUP 9: Room Connectivity; GROUP 10: Mounting and Rack Adapters;

GROUP 11: Sierra Video; GROUP 12: Digital Signage; GROUP 13: Audio; GROUP 14:

Collaboration; and GROUP 15: KM & KVM Switches.

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-120Z, PA-240Zto 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 neighbouring electrical appliances that may adversely influence

signal quality.

Position your Kramer PA-240Z 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.

Kramer Electronics Ltd.

PA-240Z - Introduction

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.

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 has 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 particular

country go to our recycling pages at www.kramerav.com/support/recycling.

Overview

Congratulations on purchasing your Kramer PA-240Z 240W Power Amplifier and/or PA-120Z

120W Power Amplifier.

Although this user manual describes the PA-240Z it refers to both PA-240Z and PA-120Z,

unless specified otherwise.

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

amplifier featuring balanced and unbalanced inputs and also a line-level balanced output. This

powerful amplifier is suitable for large-scale applications.

PA-240Z is housed in a desktop sized enclosure and two units can be mounted in a 1U rack

space using the optional RK-1 adapter.

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

Exceptional Quality

For PA-240Z:

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

2 channels of 120W into 4/8Ω.

For PA-120Z:

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-240Z - 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.

Auto-standby with adjustable threshold.

Controllable via RS-232 and IP.

Typical Applications

The PA-240Z 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-240Z - Defining the PA-240Z 240W Power Amplifier

Defining the PA-240Z 240W Power

Amplifier

This section defines the PA-240Z.

Figure 1: PA-240Z 240W Power Amplifier Front Panel

Figure 2: PA-120Z 120W Power Amplifier Front Panel

Feature

Function

ON LED

Lights green when powered on and 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 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 circuit / over-heat.

The device shuts down until correct operational conditions are regained.

Kramer Electronics Ltd.

PA-240Z - Defining the PA-240Z 240W Power Amplifier

Figure 3: PA-240Z and PA-120Z Rear Panel

Feature

Function

AUDIO IN

Connectors

(1 and 2)

Unbalanced Stereo

Audio 3.5mm Mini

Jack

Connect to an unbalanced stereo audio source.

Balanced Stereo

Audio Terminal Block

Connector

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

LINE OUT Balanced Stereo Audio

Terminal Block Connector

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

amplified speakers).

VOLUME Control Trimmer

Master volume for speaker output –rotate to set the maximum

amplifier volume.

The volume level set here defines the maximum level of the

speaker output volume on the embedded web pages (see Setting

the Speaker Output Parameters on page 15).

FACTORY DEFAULT Button

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

configurations and network settings.

ETHERNET RJ-45 Connector

Connect to an ETHERNET LAN.

RS-232 (G, Tx, Rx) Port

Connect to the RS-232 connector on the A/V equipment or a PC

or other Serial Controller.

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

DIP-Switches

Set to Hi-Z for high impedance and Lo-Z for low impedance.

In Hi-Z, set to 70V or 100V.

Lo-Z/Hi-Z Out Terminal Block

Connectors

For Lo-Z: connect stereo output to Lo-Z speakers:

L+ and L- to the left speaker; R+R- to the right speaker.

For Hi-Z (70V or 100V): connect Hi-Z and COM to mono Hi-Z

speakers.

The speaker can output either the Left side of the audio input or

reduce the stereo input to a mono signal (see Selecting Hi-Z Mono

Settings on page 17).

Power Connector with Fuse

AC connector, enabling power supply to the unit.

POWER Switch

Switch for turning the unit on or off.

Kramer Electronics Ltd.

PA-240Z - Connecting the PA-240Z

Connecting the PA-240Z

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

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

To connect the PA-240Z as illustrated in the example in Figure 4:

1. Connect the audio sources. For example:

An unbalanced stereo audio source to the AUDIO IN 1 3.5mm mini jack (for

example, an MP3 player).

A balanced stereo audio source to the AUDIO IN 2 5-pin terminal block connector

(for example, the Kramer VP-444 Switcher/Scaler).

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

balanced stereo input (for example, an additional PA-240Z 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 17).

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 speaker (for example, the Yarden 6-O

speakers).

4. Set the 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. If required, connect:

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

The ETHERNET port , see Connecting PA-240Z via the Ethernet Port on page 9.

Kramer Electronics Ltd.

PA-240Z - Connecting the PA-240Z

6. Connect the power cord (not shown in Figure 4).

Figure 4: Connecting to the PA-240Z 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 5: Connecting to a Balanced Stereo Audio

Acceptor

Figure 6: Connecting to an Unbalanced Stereo

Audio Acceptor

Kramer Electronics Ltd.

PA-240Z - Connecting the PA-240Z

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 7: Connecting a Balanced Stereo Audio

Source to the Balanced Input

Figure 8: Connecting an Unbalanced Stereo

Audio Source to the Balanced Input

Connecting to PA-240Z via RS-232

You can connect to the PA-240Z 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-240Z RS-232 terminal block

Pin 3 to the RX pin on the PA-240Z RS-232 terminal block

Pin 5 to the G pin on the PA-240Z 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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