Kramer PA-120Net User manual

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
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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
1
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.

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PA-120Net, PA-240Net –Introduction
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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.

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PA-120Net, PA-240Net –Introduction
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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
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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.

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

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

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

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PA-120Net, PA-240Net –Connecting the PA-240Net
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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
PIN
Wire Color
1
Orange / White
2
Orange
3
Green / White
4
Blue
5
Blue / White
6
Green
7
Brown / White
8
Brown

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PA-120Net, PA-240Net –Connecting the PA-240Net
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Connecting PA-240Net via the Ethernet Port
You can connect to the PA-240Net via Ethernet using either of the following methods:
•Directly to the PC using a crossover cable (see Connecting the Ethernet Port Directly to
a PC on page 9).
•Via a network hub, switch, or router, using a straight-through cable (see Connecting the
Ethernet Port via a Network Hub or Switch on page 11).
If you want to connect via a router and your IT system is based on IPv6, speak to your IT
department for specific installation instructions.
Connecting the Ethernet Port Directly to a PC
You can connect the Ethernet port of the PA-240Net directly to the Ethernet port on your PC
using a crossover cable with RJ-45 connectors.
This type of connection is recommended for identifying the PA-240Net with the factory
configured default IP address
After connecting the PA-240Net to the Ethernet port, configure your PC as follows:
1. Click Start > Control Panel > Network and Sharing Center.
2. Click Change Adapter Settings.
3. Highlight the network adapter you want to use to connect to the device and click Change
settings of this connection.
The Local Area Connection Properties window for the selected network adapter appears
as shown in Figure 6.
Figure 6: Local Area Connection Properties Window

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4. Highlight either Internet Protocol Version 6 (TCP/IPv6) or Internet Protocol Version 4
(TCP/IPv4) depending on the requirements of your IT system.
5. Click Properties.
The Internet Protocol Properties window relevant to your IT system appears as shown in
Figure 7 or Figure 8.
Figure 7: Internet Protocol Version 4
Properties Window
Figure 8: Internet Protocol Version 6
Properties Window
6. Select Use the following IP Address for static IP addressing and fill in the details as
shown in Figure 9.
For TCP/IPv4 you can use any IP address in the range 192.168.1.1 to 192.168.1.255
(excluding 192.168.1.39) that is provided by your IT department.
Figure 9: Internet Protocol Properties Window
7. Click OK.
8. Click Close.

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Connecting the Ethernet Port via a Network Hub or Switch
You can connect the Ethernet port of the PA-240Net to the Ethernet port on a network hub or
using a straight-through cable with RJ-45 connectors.
Control Configuration via the Ethernet Port
To control several units via Ethernet, connect the Master unit (Device 1) via the Ethernet port
to the Ethernet port of your PC. Use your PC provide initial configuration of the settings (see
Connecting PA-240Net via the Ethernet Port on page 9).
Operating the PA-240Net
This section describes the following operations:
•Setting the DIP-Switches on page 11.
•Adjusting the Master Volume on page 11.
Setting the DIP-Switches
By default, the DIP-switches are set to Hi-Z and 100V.
DIP-Switch #
Setting
1
Set to Hi-Z (up) for high impedance configurations.
Use when connecting mono speakers in daisy-chain.
Set to Lo-Z (down) for low impedance configurations.
Use when connecting to a single pair of speakers, one to the left and one to the right.
2
When DIP-switch 1 is set to Hi-Z (up), set DIP-switch 2 either to 70V (down) or 100V (up),
according to your requirements.
Adjusting the Master Volume
Use the VOLUME attenuator on the rear panel to set the maximum level for the speaker
output. Adjust the master volume (speaker output) via the web pages, see Setting the Master
Volume and Balance on page 14.

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PA-120Net, PA-240Net –Using the Embedded Web Pages
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Using the Embedded Web Pages
Control the PA-240Net via the web pages which are accessed using a Web browser and an
Ethernet connection.
Before attempting to connect:
•Perform the procedures described in Connecting PA-240Net via the Ethernet Port
on page 9.
•Ensure that your browser is supported.
The following operating systems and Web browsers are supported:
OS
Browser
Windows (7 and higher)
IE
FireFox
Chrome
Mac/iOS
Safari
Android
Chrome
The PA-240Net web pages enable performing the following:
•Setting the Speaker Output Parameters on page 13.
•Setting the Line Level Output Parameters on page 15.
•Selecting Hi-Z Mono Settings on page 16.
•Changing Standby Settings on page 16.
•Setting Device Parameters on page 17.
•Managing Web Page Security on page 19.
•Viewing the About Page on page 21.
•Using the Web-based Dante Controller on page 21.
To browse the PA-240Net web pages:
1. Open your Internet browser.
2. Type the IP address of the device in the address bar of your browser. For example, the
default IP address:
The Authentication window appears (if security is enabled).

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PA-120Net, PA-240Net –Using the Embedded Web Pages
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3. Enter the User Name (Admin, by default) and Password (Admin, by default) and click
OK.
The Speaker Output page appears:
Figure 10: Speaker Output Page
4. Click the desired web page using the navigation list on the left or click the arrow at the
top to hide the navigation list.
Setting the Speaker Output Parameters
Use the Speaker Output page to set the speaker input signals mixing and the output
parameters.
PA-240Net can automatically set the line level output parameters according to the speaker
output parameters (see Setting the Line Level Output Parameters on page 15).
The Speaker Output Mixer enables performing the following operations:
•Mixing the Input Signal Levels on page 14.
•Setting Equalization Levels on page 14.
•Setting the Master Volume and Balance on page 14.

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Mixing the Input Signal Levels
The indication buttons next to Input 1 and Input 2 appear green when there is an active signal
on that input.
To set the Mixing Level:
1. In the Navigation pane, click Speaker Output.
The Speaker Output page appears (see Figure 10).
2. In the Mix column, use the sliders to set the mixing level for each input or enter their
value below the sliders.
3. Set the High-Pass Filter ON or OFF to cut-off frequencies lower than 70Hz.
To save energy, enable the High-Pass Filter when outputting soft background music or
speech sources.
Setting Equalization Levels
We recommend that you first set the frequencies, then the Q and finally the Bass Mid and
Treble ranges.
To set EQ levels:
1. In the navigation pane click Speaker Output. The Speaker Output page appears.
2. In the EQ column set the following:
▪Frequency: Bass [60Hz, 80Hz, 100Hz or 200Hz] Mid [500Hz, 1kHz, 1.5kHz or
2.5kHz] and Treble [10kHz, 12.5kHz, 15kHz or 17.5kHz] frequency.
▪Q-Factor: Bass, Mid and Treble [0.1 to 16].
The lower the Q value, the wider the bandwidth.
▪Equalization: Bass, Mid and Treble via the sliders or enter their value [dB] below the
sliders.
Setting the Master Volume and Balance
The maximum master volume level of the speaker output is set via the VOLUME attenuator
on the rear panel, see Adjusting the Master Volume on page 11.
In the Master Volume column:
•Use the slider to set the speaker audio level or enter the value [dB] below the slider.
•Click to mute/unmute the output volume.
•Set the left right balance on the speaker output.

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Setting the Line Level Output Parameters
PA-240Net can automatically set the line level output parameters according to the speaker
output parameters (see Setting the Speaker Output Parameters on page 13), or they can be
set manually via the Line Level Output page.
To set the line level output parameters independently (unlinked to speaker output
parameters):
1. In the Navigation pane, click Speaker Output. The Speaker Output page appears.
2. Click Unlinked.
3. In the Navigation pane, click Line Level Output. The Line Level Output page appears.
Figure 11: Line Level Output Page
4. Set the line level parameters (see Setting the Speaker Output Parameters on page 13).

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Selecting Hi-Z Mono Settings
To Select Hi-Z Mono Settings:
1. In the Navigation pane, click Audio Settings. The Audio Settings page appears.
Figure 12: Audio Settings Page
2. Set the Hi-Z reduction to mono to one of the following:
▪Select Left only to use left audio in connectors.
▪Select Stereo Down Mix to reduce the stereo input to mono.
Changing Standby Settings
To change standby settings:
1. In the Navigation pane, click Audio Settings.
The Audio Settings page appears (see Figure 12).
2. Define the Standby Settings:
▪Set auto standby to ON or OFF.
▪Type the audio threshold to initiate auto standby.
The "threshold" sets what is considered a valid input signal by the amplifier, and
what is considered noise.
This will also influence the front panel LEDs. If the input signal becomes lower
than the threshold, the LEDs will not illuminate.
▪Set the standby timeout to 5, 10 or 15 minutes.

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Setting Device Parameters
The Device Settings Web page shows the device details, such as name, MAC address and
firmware version. It also allows the following functions:
•Changing the name of the unit by typing the name in the Unit name text box.
•Changing the Ethernet Controller/Ethernet Dante Settings on page 17.
•Saving and Loading Settings on page 18.
•Performing a Factory Reset on page 18.
Changing the Ethernet Controller/Ethernet Dante Settings
To change the Ethernet settings, if required:
1. In the Navigation pane, click Device Settings. The Device Settings page appears:
Figure 13: Device Settings Page

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2. Set DHCP to ON or OFF.
3. If DHCP is set to OFF, change any of the parameters (IP Address, Netmask and/or
Gateway).
4. Click Set.
•After changing the IP number, reload the web page with the new IP address.
•After changing the Subnet mask you need to restart the PA-240Net.
•If DHCP is checked, reload the web page with the new IP address.
5. Set the UDP and TCP port numbers and click Set.
Saving and Loading Settings
To save a configuration:
1. In the Navigation pane, click Device Settings.
The Device Settings page appears (see Figure 13).
2. Click Save. The following message appears:
“Configuration file is ready, right-click here to download”
3. Right-click the link (right-click here) and click Save link as.
The configuration is downloaded to your PC.
To load a configuration:
1. In the Navigation pane, click Device Settings.
The Device Settings page appears (see Figure 13).
2. Click Load and browse for the configuration file.
3. Click Open.
The configuration loads (this process may take a few minutes to complete)
A message indicating that the configuration uploaded successfully appears.
Performing a Factory Reset
To reset the device to its factory default values:
1. In the Navigation pane, click Device Settings.
The Device Settings page appears (see Figure 13).
2. Click Factory reset.
A confirmation warning message appears.
3. Click OK to start factory reset and follow the instructions on-screen.