Sonifex AVN-PXH12 User manual

Manufacturers of audio & video
products for radio & TV broadcasters
AVN-PXH12
12 x 2 Channel Mix Monitor, AoIP Portal
HANDBOOK

AVN-PXH12 Handbook
This handbook is for use with the following product:
AVN-PXH12 12 x 2 Channel Mix Monitor, AoIP Portal
AW10850A, Stock Code: 30-363
Revision 1.00 October 2017
©Sonifex Ltd, 2017
All Rights Reserved
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel: [phone]
Fax: [phone]
Email: [email protected]o.uk
Website: http://www.sonifex.co.uk
Information in this document is subject to change without notice and does not represent a
commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage
whatsoever arising from the use of information or any error contained in this manual.
No part of this manual may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, information storage and retrieval systems, for any
purpose other than the purchaser’s personal use, without the express written permission of Sonifex
Ltd. Unless otherwise noted, all names of companies, products and persons contained herein are
part of a completely fictitious adaptation and are designed solely to document the use of Sonifex
product.
Made in the UK by
For the latest Sonifex handbook information please visit the
Sonifex website at www.sonifex.co.uk

Contents & Figures
Contents
Product Warranty - 2 Year Extended i
Sonifex Warranty & Liability Terms & Conditions i
1. Definitions i
2. Warranty i
Unpacking Your Product ii
Repairs & Returns iii
Conformity iii
Safety & Installation of Mains Operated Equipment iii
Voltage Setting Checks iii
Fuse Rating iii
Power Cable & Connection iii
WEEE Directive iv
Atmosphere/Environment iv
1. Sonifex AVN-PXH12 12 x 2 Channel Mix Monitor, AoIP Portal 1
Overview 1
2. Front Panel Controls & Indicators 3
Status Indicators & Stereo Input 1 3
Indicators: AC PSU, DC PSU, AoIP & Clock 4
Stereo Analogue Input 1 4
Channel Controls & Indicators 4
Volume Control & Level Indicator 4
Channel Source Selection 4
Channel Mute 5
Channel Solo 5
Source Earpiece Assignment 5
Scribble Space 5
Monitoring Outputs 5
3. Rear Panel Connections 6
Mono Balanced Analogue Outputs 1 - 3 6
Stereo Balanced Analogue Input 2 6
Stereo Unbalanced Analogue Inputs 3 & 4 6
GPI/O (General Purpose Input/Output) 7
Ethernet 1GB & AoIP 1GB Network Interfaces 7
AoIP SFP Interface 7
12V DC Input 8
Mains Fuse 8
Mains AC Input 8
4. Embedded Web Server 8
Web Page Menu Structure 9
Information Web Page 9
Configuration Tab 10
Network Web Page 10
Device Name 10
Ethernet & AoIP Network Port Settings 10
PTP Web Page 11
AoIP Stream Setup & Assignment 12
AoIP Output Stream Setup Web Page 12
Source Selection Web Page 12
Misc Settings Web Page 14
Front Panel Settings 14
LED Brightness 14
Audio Settings 14
Audio Input/Output Lineup 14
Headphone Audio Attenuation 14
System Web Page 15
Firmware Updates 15
Front Panel Firmware Updates 15
Save Configuration to a File 15
Load Configuration From a File 15
5. Technical Specifications 16
Figures
Fig 1-1: AVN-PXH12 Front Panel 1
Fig 1-2: AVN-PXH12 Rear Panel 1
Fig 2-1: AVN-PXH12 Front Panel 3
Fig 2-2: AVN-PXH12 Status Indicators & Front Panel Controls 3
Fig 2-3: AVN-PXH12 Status Indicators & Front Panel Controls 4
Fig 2-4: AVN-PXH12 Front Panel Monitoring Outputs & Controls 5
Fig 3-1 AVN-PXH12 Rear Panel 6
Fig 3-2: 3.5mm & 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plug 6
Fig 4-1: Information Web Page 9
Fig 4-2: AoIP Output Streams 12
Fig 4-3: All Source Selection Dialog 12
Fig 4-4: Source Type Selection Dialog 13
Fig 4-5: Physical Input Source Selection Dialog 13
Fig 4-6: AoIP Source Selection Dialog 13
Fig 4-7: Misc Settings Web Page 14
Fig 4-8: System Web Page 15

Warranty Registration
Sonifex Limited y 61 Station Road y Irthlingborough y Northamptonshire y NN9 5QE y United Kingdom
Tel: [phone] y Fax: [phone] y Email: [e-mail] y Internet: www.sonifex.co.uk
Register Online for an
Extended 2 Year Warranty
As standard, Sonifex products are
supplied with a 1 year back to base
warranty.
If you register the product online, you
can increase your product warranty
to 2 years and we can also keep
you informed of any product design
improvements or modifications.
To register your product, please go online to www.sonifex.co.uk/register
Product:
Serial No:

i
Warranty
Product Warranty - 2 Year Extended
As standard, Sonifex products are supplied with a 1 year back to base
warranty. In order to register the date of purchase and so that we can keep
you informed of any product design improvements or modifications, it is
important to complete the warranty registration online. Additionally, if you
register the product on the Sonifex website, you can increase your product
warranty to 2 years. Go to the Sonifex website at: www.sonifex.co.uk/
register to apply for your 2 year warranty.
Sonifex Warranty & Liability Terms & Conditions
1. Definitions
‘the Company’ means Sonifex Ltd and where relevant includes companies
within the same group of companies as Sonifex Limited.
‘the Goods’ means the goods or any part thereof supplied by the Company
and where relevant includes: work carried out by the Company on items
supplied by the Purchaser; services supplied by the Company; and software
supplied by the Company.
‘the Purchaser’ means the person or organisation who buys or has agreed
to buy the Goods.
‘the Price’ means the Price of the Goods and any other charges incurred by
the Company in the supply of the Goods.
‘the Warranty Term’ is the length of the product warranty which is usually
12 months from the date of despatch; except when the product has been
registered at the Sonifex website when the Warranty Term is 24 months
from the date of despatch.
‘the Contract’ means the quotation, these Conditions of Sale and any
other document incorporated in a contract between the Company and the
Purchaser.
This is the entire Contract between the parties relating to the subject
matter hereof and may not be changed or terminated except in writing in
accordance with the provisions of this Contract. A reference to the consent,
acknowledgement, authority or agreement of the Company means in
writing and only by a director of the Company.
2. Warranty
a. The Company agrees to repair or (at its discretion) replace Goods
which are found to be defective (fair wear and tear excepted) and
which are returned to the Company within the Warranty Term
provided that each of the following are satisfied:
i. notification of any defect is given to the Company immediately
upon its becoming apparent to the Purchaser;
ii. the Goods have only been operated under normal operating
conditions and have only been subject to normal use (and
in particular the Goods must have been correctly connected
and must not have been subject to high voltage or to ionising
radiation and must not have been used contrary to the
Company’s technical recommendations);
iii. the Goods are returned to the Company’s premises at the
Purchaser’s expense;
iv. any Goods or parts of Goods replaced shall become the
property of the Company;
v. no work whatsoever (other than normal and proper
maintenance) has been carried out to the Goods or any part of
the Goods without the Company’s prior written consent;
vi. the defect has not arisen from a design made, furnished or
specified by the Purchaser;

ii
Warranty
vii. the Goods have been assembled or incorporated into other
goods only in accordance with any instructions issued by the
Company;
viii. the defect has not arisen from a design modified by the
Purchaser;
ix. the defect has not arisen from an item manufactured by a person
other than the Company. In respect of any item manufactured
by a person other than the Company, the Purchaser shall only be
entitled to the benefit of any warranty or guarantee provided by
such manufacturer to the Company.
b. In respect of computer software supplied by the Company the
Company does not warrant that the use of the software will be
uninterrupted or error free.
c. The Company accepts liability:
(i) for death or personal injury to the extent that it results from the
negligence of the Company, its employees (whilst in the course
of their employment) or its agents (in the course of the agency);
(ii) for any breach by the Company of any statutory undertaking as
to title, quiet possession and freedom from encumbrance.
d. Subject to conditions (a) and (c) from the time of despatch of
the Goods from the Company’s premises the Purchaser shall be
responsible for any defect in the Goods or loss, damage, nuisance
or interference whatsoever consequential economic or otherwise or
wastage of material resulting from or caused by or to the Goods. In
particular the Company shall not be liable for any loss of profits or
other economic losses. The Company accordingly excludes all liability
for the same.
e. At the request and expense of the Purchaser the Company will test
the Goods to ascertain performance levels and provide a report of
the results of that test. The report will be accurate at the time of the
test, to the best of the belief and knowledge of the Company, and the
Company accepts no liability in respect of its accuracy beyond that
set out in Condition (a).
f. Subject to Condition (e) no representation, condition, warranty or
other term, express or implied (by statute or otherwise) is given by
the Company that the Goods are of any particular quality or standard
or will enable the Purchaser to attain any particular performance
or result, or will be suitable for any particular purpose or use
under specific conditions or will provide any particular capacity,
notwithstanding that the requirement for such performance, result or
capacity or that such particular purpose or conditions may have been
known (or ought to have been known) to the Company, its employees
or agents.
g. (i) To the extent that the Company is held legally liable to the
Purchaser for any single breach of contract, tort, representation
or other act or default, the Company’s liability for the same
shall not exceed the price of the Goods.
(ii) The restriction of liability in Condition (g)(i) shall not apply to
any liability accepted by the Seller in Condition (c).
h. Where the Goods are sold under a consumer transaction (as defined
by the Consumer Transactions (Restrictions on Statements) Order
1976) the statutory rights of the Purchaser are not affected by these
Conditions of Sale.
Unpacking Your Product
Each product is shipped in protective packaging and should be inspected
for damage before use. If there is any transit damage take pictures of the
product packaging and notify the carrier immediately with all the relevant
details of the shipment. Packing materials should be kept for inspection and
also for if the product needs to be returned.

The product is shipped with the following equipment so please check to
ensure that you have all of the items below. If anything is missing, please
contact the supplier of your equipment immediately.
Item Quantity
Product unit 1
IEC mains lead fitted with moulded mains plug 1
Handbook and warranty card 1
If you require a different power lead, please let us know when ordering the
product.
Repairs & Returns
Please contact Sonifex or your supplier if you have any problems with your
Sonifex product. Email [e-mail] for the repair/
upgrade/returns procedure, or for support & questions regarding the
product operation.
Conformity
The products in this manual comply with the essential requirements of the
relevant European health, safety and environmental protection legislation.
The technical justification file for this product is available at Sonifex Ltd.
The declaration of conformity can be found at:
http://www.sonifex.co.uk/declarations
Safety & Installation of Mains
Operated Equipment
There are no user serviceable parts inside the equipment. If you should
ever need to look inside the unit, always disconnect the mains supply
before removing the equipment covers. The cover is connected to earth
by means of the fixing screws. It is essential to maintain this earth/
ground connection to ensure a safe operating environment and provide
electromagnetic shielding.
Voltage Setting Checks
Ensure that the machine operating voltage is correct for your mains power
supply by checking the box in which your product was supplied. The voltage
is shown on the box label. The available voltage settings are 115V, or 230V.
Please note that all products are either switchable between 115V and 230V,
or have a universal power supply.
Fuse Rating
The product is supplied with a single fuse in the live conducting path of the
mains power input. For reasons of safety it is important that the correct
rating and type of fuse is used. Incorrectly rated fuses could present a
possible fire hazard, under equipment fault conditions. The active fuse is
fitted on the outside rear panel of the unit.
Power Cable & Connection
An IEC power connector is supplied with the product which has a moulded
plug attached.
The mains plug or IEC power connector is used as the disconnect device.
The mains plug and IEC power connector shall remain readily operable to
disconnect the apparatus in case of a fault or emergency.
The mains lead is automatically configured for the country that the product
is being sent to, from one of:

iv
Safety & Installation
Territory Voltage IEC Lead Type Image
UK & Middle East 230V UK 3 pin to IEC lead
Europe 230V European Schuko round 2 pin to
IEC lead
USA, Canada and
South America 115V 3 flat pin to IEC lead
Australia & New
Zealand 230V Australasian 3 flat pin to IEC lead
Connect the equipment in accordance with the connection details and
before applying power to the unit, check that the machine has the correct
operating voltage for your mains power supply.
This apparatus is of a class I construction. It must be connected to a mains
socket outlet with a protective earthing connection.
Important note: If there is an earth/ground terminal on the rear panel of
the product then it must be connected to Earth.
WEEE Directive
The Waste Electrical and Electronic Equipment (WEEE)
Directive was agreed on 13 February 2003, along with the
related Directive 2002/95/EC on Restrictions of the use of
certain Hazardous Substances in electrical and electronic
equipment (RoHS). The Waste Electrical and Electronic Equipment Directive
(WEEE) aims to minimise the impacts of electrical and electronic equipment
on the environment during their life times and when they become waste.
All products manufactured by Sonifex Ltd have the WEEE directive label
placed on the case. Sonifex Ltd will be happy to give you information about
local organisations that can reprocess the product when it reaches its “end
of use”, or alternatively all products that have reached “end of use” can be
returned to Sonifex and will be reprocessed correctly free of charge.
Atmosphere/Environment
This apparatus should be installed in an area that is not subject to excessive
temperature variation (<0°C, >50°C), moisture, dust or vibration.
This apparatus shall not be exposed to dripping or splashing, and no objects
filled with water, such as vases shall be placed on the apparatus.

1
Overview 1
1. Sonifex AVN-PXH12 2 x 12 Channel Mix Monitor, AoIP Portal
The knob for each channel controls the level of the input routed to the
output and the knob also illuminates either green, amber or red to show
input level. Pressing the knob ‘Solos’ the channel input to the output.
The front panel has 3 outputs: individually driven stereo headphones on
6.35mm (¼”) jack and 3.5mm jack sockets, each with their own individual
attenuation settings, and a mono-mix speaker output. There are discrete
volume controls for the headphones and the speaker, and the latter also
has a mute button.
The rear panel has an additional 3 line level XLR-3 audio outputs, which can
be designated as mono mix or left or right channel outputs of the mixed
audio content (similar to the speaker and headphone outputs respectively),
or any of the physical inputs or AoIP input sources.
The unit also sends to the network, as AoIP AES67 streams, the 8 channels
of the 4 physical stereo inputs, together with a stereo mix of the speaker
output.
Fig 1-1: AVN-PXH12 Front Panel
Fig 1-2: AVN-PXH12 Rear Panel
Overview
The Sonifex AVN-PXH12 is a monitor-mixer primarily designed for monitoring
Audio Over IP audio channels in a compact 1U format rack. Any AES67 audio
channels on your network can be assigned to input channels on the unit and
mixed down to analogue outputs, two headphone outputs and a built-in
speaker.
It is a stereo monitoring device that allows you to monitor up to 12 audio
sources, from an input total of 24, at any one time. The 24 audio sources
can be selected from 4 discrete stereo analogue audio inputs (1 x front
panel 3.5mm jack socket, 2 x rear panel 3.5mm jack sockets and 1 x rear
panel stereo XLR input pair) or from any RAVENNA, AES67 or AES67-enabled
Dante® AoIP connected streams.
These stereo signals are routed to the 12 x control channels on the front
panel, each of which have a ‘Normal’ and an ‘Alternate’ input selection. Each
channel has three buttons: one for input selection, another to Mute the
channel and the third to select whether the channel input is routed to the
left, right or stereo output legs.
Dante® is a trademark of Audinate Pty Ltd.

2
1 Overview
The rear panel contains IEC mains and secondary DC power inputs which
provide power redundancy to the product. There are two Ethernet RJ45
connections (control and AoIP) and there is an Ethernet SFP module that,
when used, replaces the AoIP RJ45 connection.
A rear panel GPIO connector provides 10 local ports which can be
user configured as inputs or outputs and provide software controlled
functionality. A voltage free relay contact can be used to operate external
equipment.
A built-in web server provides complete configuration control of the unit
including source assignment to each channel and also allows for firmware
updates and configuration backup. The unit can be controlled by suitable
Ember+ commands.

3
Front Panel Controls 2
The Front Panel consists of three areas:
- Status indicators on the far left.
- Channel controls and indicators in the centre.
- Monitoring outputs on the far right.
Status Indicators & Stereo Input 1
On the left hand side there are 4 status indicators, an unbalanced stereo
analogue audio input on a 3.5mm jack socket and a recessed reset button.
Indicators:
AC PSU
Indicates the status of the internal AC-DC power supply as follows:
Green AC-DC generated voltage is within normal operating range
of +11V to +13V. This is the normal condition.
Amber AC-DC generated voltage less than +11V or greater than
+13V. This indicates a warn condition.
Red AC-DC generated voltage is less than +10V or greater than
+14V. This indicates a fault condition.
2. Front Panel Controls & Indicators
Fig 2-1: AVN-PXH12 Front Panel
Loudspeaker
Status
Indicators
2 x Headphone
Outputs
Unbalanced
Stereo Input
Control Buttons, 3 for each
of the 12 Channels
Loudspeaker Volume
Control & Mute Button
Headphone
Volume Control
Reset
DC PSU
Indicates the status of the DC power input as follows:
Green DC voltage is within normal operating range of +11V to
+13V. This is the normal condition.
Amber DC voltage less than +11V or greater than +13V. This
indicates a warn condition.
Red Not connected or DC voltage is less than +10V or
greater than +14V. This indicates a fault condition if a DC
power source is connected.
Fig 2-2: AVN-PXH12 Status
Indicators & Front Panel Controls

4
2 Front Panel Controls
Channel Controls & Indicators
The middle section consists of a set of controls and indicators for each of
the 12 channels.
Volume Control & Level Indicator
Volume Knob – There is a knob to control the signal level of that channel
in the output mix, and this is shown by the LED set around the knob. There
are 21 LEDs and we use this to show 41 discrete levels, by illuminating them
in a 1, 2, 1, 2 pattern.
Input Level – The knob is illuminated to indicate the input source level (ie
pre level control signal) by lighting:
Green For low levels -60 to -18dBFS
Yellow For normal levels -18 to 0dBFS
Red For high levels 0dBFS
This illumination can be disabled if not required, using the webserver
software.
Channel Source Selection
A Norm/Alt button allows you to select the primary (Norm) or secondary
(Alt) input as defined in the webserver pages.
AoIP
When green this indicates that the mix monitor AoIP network connection
is linked.
Clock
Indicates the status of PTP clock as follows:
Green The unit is the PTP slave with a clock offset of less or
equal to ±1μs or the unit is a PTP master.
Amber The unit is the PTP slave with a clock offset of between
±1μs and ±10μs.
Flash Amber The unit is in a listening state and is not yet acting as a
master or a slave.
Red The unit is the PTP slave with a clock offset of greater
than ±10μs.
Flash Red The unit is a PTP slave and no master is available.
Stereo Analogue Input 1
The stereo input on the front panel is an unbalanced 3.5mm stereo jack
socket with the following pin connections:
Tip: Analogue Input Left
Ring: Analogue Input Right
Sleeve: Ground
Fig 2-3: AVN-PXH12 Status Indicators &
Front Panel Controls

5
Front Panel Controls 2
Channel Mute
The Mute button can be used to remove the channel source from the mix
output and it illuminates orange when muted.
Channel Solo
The knob, in addition to being a signal level of that channel, is also a press
and hold control that Solos the channel my muting all the other channels
in the output mix. When the knob is held down, the Mute buttons of the
other channels illuminate orange.
Source Earpiece Assignment
The Mono/St button is used to assign the left and right legs of the source
signal to the output:
Unlit Stereo input routes as a stereo output
Red The left input as a mono signal is sent to both left and right
outputs.
Green The right input as a mono signal is sent to both left and right
outputs.
Scribble Space
There is also a scribble space underneath for the user to label the channels
for easy identification.
Monitoring Outputs
The right hand side of the front panel contains the monitoring audio outputs
and volume controls. There are physical audio outputs on the rear of the
product.
Fig 2-4: AVN-PXH12 Front Panel Monitoring Outputs & Controls
Headphone Output Sockets
There is 1 x 6.35mm stereo jack socket and 1 x 3.5mm stereo jack socket with
a common volume control pot and software settable independent attenuation
values. Each output is individually driven to allow for both headphones to be
connected at the same time.
Each jack socket has the following connections:
Tip: Headphone Left
Ring: Headphone Right
Sleeve: Ground
When headphones are connected, the speaker is automatically muted.
Speaker Control
The front panel speaker has its own volume pot.
Speaker Mute
The LS Mute button is used to mute the loudspeaker output.

6
3 Rear Panel Connections
3. Rear Panel Connections Mains AC
Input
Mains
Fuse
12V DC
Input
Ethernet
Network
Interface
GPI/O AoIP
SFP
Interface
AoIP
Network
Interface
Stereo
Input 3
Stereo
Input 4
Line
Outputs
Stereo
Input 2
Fig 3-1 AVN-PXH12 Rear Panel
Mono Balanced Analogue Outputs 1 - 3
dŚĞƌĞĂƌĞƚŚƌĞĞŵŽŶŽy>ZϯƉŝŶŵĂůĞŽƵƚƉƵƚƐ;y>ZͲϯͲϯϮϱϬɏďĂůĂŶĐĞĚ
floating) with the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-Phase
Each output can be assigned to be
from a physical input, an AES67 stream,
the mix left output, the mix right output or a mono mix of the stereo
output.
Stereo Balanced Analogue Input 2
Stereo line input 2 consists of 2 x XLR 3 pin female connectors (XLR-3-31,
ϭϬŬɏďĂůĂŶĐĞĚĨůŽĂƚŝŶŐͿǁŝƚŚƚŚĞĨŽůůŽǁŝŶŐĐŽŶŶĞĐƚŝŽŶƐ
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-Phase
Stereo Unbalanced Analogue Inputs 3 & 4
Stereo line inputs 3 & 4 consist of 2 x unbalanced 3.5mm stereo jack sockets
with the following pin connections:
Tip: Analogue Input Left
Ring: Analogue Input Right
Sleeve: Ground
Tip – Left Signal
Ring – Right Signal
Sleeve – Ground (Screen) Signal
Fig 3-2: 3.5mm & 6.35mm (¼ inch) ‘A’ Gauge Stereo Jack Plug
Pin 1
Screen Signal
Pin 2
Phase Signal
Pin 3
Non-Phase Signal
Pin2
Phase Signal
Pin 1
Screen Signal
Pin 3
Non-Phase Signal

7
Rear Panel Connections 3
GPI/O (General Purpose Input/Output)
This 15 pin ‘D’ type socket provides 10 configurable general purpose inputs
or outputs and a voltage free switching relay contact. The connections are
as follows:
Pin 1 GPIO Port 1
Pin 2 GPIO Port 2
Pin 3 GPIO Port 3
Pin 4 GPIO Port 4
Pin 5 GPIO Port 5
Pin 6 Relay – Normally Open Contact
Pin 7 Relay – Normally Closed Contact
Pin 8 Relay – Common
Pin 9 GPIO Port 6
Pin 10 GPIO Port 7
Pin 11 GPIO Port 8
Pin 12 GPIO Port 9
Pin 13 GPIO Port 10
Pin 14 Fused (200mA) +12VDC Supply
Pin 15 Ground
GPIO ports configured as an output are open collector type, i.e. when the
output is active, the pin will be pulled to ground – and is capable of sinking
20mA.
GPIO inputs are active low, i.e. the pin should be pulled to ground to
activate it.
Ethernet 1GB & AoIP 1GB Network Interfaces
These RJ45 connectors are the gigabit network ports. The upper connector
is the configuration and control port and the lower connector is the audio
over IP (AoIP) port.
The dual Ethernet connectivity means that Audio over IP can be separated
from the setup/monitoring which can be done from your main network.
This is the preferred arrangement as it is important that the AoIP network
transfers are not affected by bulk transfers on the main network.
However all command and control functions are available on both ports
so if you wish a single network connection via the AoIP port will suffice for
both audio and control.
AoIP SFP Interface
This SFP (small form-factor pluggable) connector allows an alternative
interface type to be used for the AoIP port, for example fibre. If a SFP
interface is used, the AoIP network port cannot be used at the same time.

8
3 Rear Panel Connections
12V DC Input
This 4 pin KPJX connector allows an external +12V power supply to be used
to power the unit. When looking at the rear of the unit, the pin locations
and connections are as follows:
Location Connection
Pin 1 Upper Left +12V DC
Pin 2 Upper Right +12V DC
Pin 3 Lower Left 0V
Pin 4 Lower Right 0V
Both the 12V DC input and the mains AC input can be connected at the
same time and the unit will automatically switch between power supplies
or load share as appropriate.
Mains Fuse
This 20mm x 5mm anti-surge mains fuse is rated at 2A.
Mains AC Input
This universally filtered IEC is the mains AC input power supply to the unit
and is continuously rated 85-264V AC @ 47-63Hz.
4. Embedded Web Server
The AVN-PXH12 has an embedded web server which provides easy access
to all the configuration options through a web browser. It also gives access
to system information and allows the firmware to be easily updated when
new releases are made available.
To access the embedded web server, the unit needs to be connected to a
network via either of the 2 network ports on the rear panel. The upper port
is the general access Ethernet port and the lower port is the Audio over IP
(AoIP) port. By default, both ports are set to static address mode with the
upper port IP address set to 192.168.0.100 and the lower port IP address
set to 192.168.1.100.
If the network address mode for the port to be used has been set to
dynamic, the unit will attempt to acquire an IP address from a DHCP server
or auto configuration if no DHCP server is found.
Once the IP address of the required port is known, simply type this into
the address bar of a web browser. The Device Information page of the
connected AVN-PXH12 will be displayed. This is the default page and will
always be displayed first when connecting to the embedded web server.
The unit can also be accessed using it’s hostname of:
AVN-PXH12-SerialNo
where ‘SerialNo’ is the 7 digit serial number of the product (add leading
zeros if the number is less than 7 digits), e.g. AVN-PXH12-0098765.
The right hand side of each page has a brief help section that describes the
content of each section.

9
Web Page Menu Structure 4
Fig 4-1: Information Web Page
Web Page Menu Structure
For information about AVN discovery and network connections, which is
applicable to all Sonifex AVN products, see the Sonifex handbook “AVN - A
Guide to Media Networking & Configuration of the AVN Product Range”.
The structure of the current webpages is as below. Please note that as the
webpages are updated, new features may be added to them which aren’t
documented here. Use the help text on the right hand side of the webpage
to get instructions on use.
Main Page
> Information
> Configuration
> Network
> PTP Profiles
> AoIP Streams
> Source Selection
> Misc Settings
> System
Information Web Page
This information shows the current status of the unit as well as the software
versions of the various modules running on it. When contacting Sonifex
technical support, it is important to provide the information shown on this
page.
The lower half of the page shows the status of the Precision Time Protocol
(PTP) clock, as well as the configuration of the network ports as shown:
The network IP addresses and subnet masks shown are the actual values
currently in use.

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4 Web Page Menu Structure
Configuration Tab
The pages under the Configuration tab are split into groups and all
of the unit’s configuration settings can be edited here. Each page
has a SUBMIT button that sends the changes to the connected
unit. The SUBMIT button remains disabled until changes have
been made on the page. Once the SUBMIT button has been
pressed, a busy indicator will be shown and the page will be
temporarily disabled until the changes have been written.
Network Web Page
The Network page shows the current configuration of the
Ethernet and AoIP network ports. The friendly name is also set
here.
Device Name
Friendly Name – This is the user friendly name that identifies the
unit on the network. It is a good idea to assign a user name or
location as this is easily recognised by other users. The default
name is made from the device ID and the 7 digit product serial
number i.e. AVN-PXH12-1234567. The intercom name can only
contain letters, numbers and hyphens although it cannot start or
end with a hyphen.
Ethernet & AoIP Network Port Settings
Address Mode – Each network port has its own independent
address mode which determines how the port obtains its IP
address. When set to dynamic, the unit will attempt to acquire
an IP address automatically from either a DHCP server or via auto
configuration if no DHCP server is found. The actual IP address will
be shown on the device information page. When static mode is
used, the IP address, subnet mask & gateway values entered will
be assigned to the corresponding network port.
Static IP Address – This is the IP address that will be assigned to the corresponding
network port when static address mode is selected. It is important to ensure that
this IP address is not currently in use on the network. These values are not used
when the address mode is dynamic.

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Web Page Menu Structure 4
Static Subnet Mask – This is the subnet mask that will be used for the
corresponding network port when static address mode is selected. These
values are not used when the address mode is dynamic.
Static Gateway - This is the router IP address that will be used for the
corresponding network port when static address mode is seclected.
Auto Multicast – When this option is enabled, and the address mode of the
AoIP port is set to static, the AoIP transmit multicast IP addresses, shown
on the AoIP Streams Web Page, are automatically configured based on
the AoIP port IP address. If the IP address of the AoIP port is changed, the
multicast addresses are updated. This simplifies configuration and ensures
the multicast addresses are unique on the network.
If any of the network configuration options are changed, the unit will
automatically restart to implement the new settings. If the IP address of
the network port that is currently being used to access the web server
is changed, a new connection will need to be made once the unit has
restarted. Otherwise, the new page will be shown automatically once the
restart is complete.
Network Defaults
Friendly Name: AVN-PXH12-xxxxxxx
Where xxxxxxx is the product serial number
Ethernet Port:
Address Mode: Static
Static IP Address: 192.168.0.100
Static Subnet Mask: 255.255.255.0
Audio over IP Port:
Address Mode: Static
Static IP Address: 192.168.1.100
Static Subnet Mask: 255.255.255.0
Auto Multicast: Enabled
PTP Web Page
These pages are the same (or very similar) for all AVN products and
the methods and details are covered in the “AVN - A Guide to Media
Networking & Configuration of the AVN Product Range” manual obtainable
from http://www.sonifex.co.uk/company/logos-images/handbooks/
avn_guide.pdf

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4 Web Page Menu Structure
AoIP Stream Setup & Assignment
AoIP Output Stream Setup Web Page
The AoIP Output Streams web page allows you to
specify the type and multicast IP address of the stream
outputs generated by the mix moniter. There are just
2 streams:
1. Contains 8 channels and consists of the 4 physical
stereo inputs.
2. A 2 channel stream of the mixed outputs selected,
and not muted, by the device.
Each multicast address should be unique throughout
the AVN system.
Source Selection Web Page
This page allows you to select the source for all 24
inputs (12 x Main and 12 x Alternate) available on
the unit. To change a source, use the Source Select
dropdown to select the channel to be altered and then
press the EDIT button for the ‘Main’ or ‘Alternate’
source. A dialog will appear allowing you to choose
between:
Unconnected: The input service is not used.
Local Physical Input: This then shows a drop-down of
available physical inputs.
AoIP stream: This then shows a drop-down of
available AoIP streams names and associated channel
numbers to select from.
Fig 4-2: AoIP Output Streams
Fig 4-3: All Source Selection Dialog