Axia IP-Intercom System Operation manual

IP-Intercom System
Installation & User’s Guide
Manual Version 1.2.1 Aug 2010
IP-Intercom Software 1.2.5 and up

IMPORTANT NOTE:
Axia Livewire devices are intended for use with an
Ethernet Switch that supports multicast and QoS
(Quality of Service). On a non-switched Ethernet
hub, or a switch that is not enabled for multicast, this
will result in network congestion that could disrupt
other network activity.
USA Class A Computing Device
Information To User. Warning:
This equipment generates, uses, and can radiate ra-
dio-frequency energy. If it is not installed and used
as directed by this manual, it may cause interference
to radio communication. This equipment complies
with the limits for a Class A computing device, as
specified by FCC Rules, Part 15, Subpart J, which
are designed to provide reasonable protection against
such interference when this type of equipment is op-
erated in a commercial environment. Operation of
this equipment in a residential area is likely to cause
interference. If it does, the user will be required to
eliminate the interference at the user’s expense.
NOTE: Objectionable interference to TV or radio
reception can occur if other devices are connected to
this device without the use of shielded interconnect
cables. FCC rules require the use of only shielded
cables.
Canada Warning:
“This digital apparatus does not exceed the Class A
limits for radio noise emissions set out in the Radio
Interference Regulations of the Canadian Depart-
ment of Communications.” “Le present appareil nu-
merique n’emet pas de bruits radioelectriques depas-
sant les limites applicables aux appareils numeriques
(de les Class A) prescrites dans le Reglement sur le
brouillage radioelectrique edicte par le ministere des
Communications du Canada.”
Important Safety Information
To reduce the risk of electrical shock, do not expose
this product to rain or moisture. Keep liquids away
from the ventilation openings in the top and rear of
the unit. Do not shower or bathe with the unit.
Caution
The installation and servicing instructions in the
manual are for use by qualified personnel only. To
avoid Electric Shock, do not perform any servicing
other than that contained in the operating instructions
unless you are qualified to do so. Refer all servicing
to qualified personnel.
Electrical Warning
To prevent risk of electric shock: Disconnect power
cord before servicing.
This equipment is designed to be operated from a
power source that includes a third “grounding” con-
nection in addition to the power leads. Do not defeat
this safety feature. In addition to creating a potential-
ly hazardous situation, defeating this safety ground
will prevent the internal line noise filter from func-
tioning.
Ventilation Warning
Axia IP-Intercom devices use convection cooling.
Do not block the ventilation openings in the side or
top of the units. Failure to allow proper ventilation
could damage the unit or create a fire hazard. Do not
place the unit on a carpet, bedding, or other materi-
als that could interfere with the rear and top panel
ventilation openings.

Introduction • iii
Version 1.2.1 Aug 2010
Customer Service
We support you...
By Phone/Fax in the USA.
• Customer service is available from 9:30 AM to 6:00 PM USA Eastern Time, Monday through Friday at
+1 216.241.7225. Fax: [phone]. The 24-hour Telos/Omnia/Axia support line is +1 216.622.0247.
By E-Mail.
• The address is [e-mail].
Via World Wide Web.
• The Axia Web site has a variety of information which may be useful for product selection and support. The URL
is http://www.AxiaAudio.com.
Feedback
We welcome feedback on any aspect of Axia products or this manual. In the past, many good ideas from users have
made their way into software revisions or new products. Please contact us with your comments.
Updates
The operation of Axia IP-Intercom is determined largely by software. Periodic updates may become available - to
determine if this is the case check our web site. Contact us to determine if a newer release is more suitable to your
needs.
Our electronic newsletter has announcements of major software updates for existing products, as well as keeping
you up to date on the latest Axia, Telos, and Omnia product releases. You may subscribe to update notifications here:
http://www.axiaaudio.com/signup.htm
Trademarks
Telos Systems, Axia Audio, Livewire, the Livewire Logo, the Axia logo, SmartSurface, Element, SmartQ, Omnia,
the Omnia logo, and the Telos logo, are trademarks of TLS Corporation. All other trademarks are the property of
their respective holders.
Axia Audio
1241 Superior Ave. Cleveland, OH 44114 USA
[phone]
[e-mail]
Copyright © 2010 by TLS Corporation. Published by Axia Audio. We reserve the right to make improvements or changes in the prod-
ucts described in this manual, which may affect the product specications, or to revise the manual without notice. All rights reserved.

Introduction • iv
Version 1.2.1 Aug 2010
Notice
All versions, claims of compatibility, trademarks, etc.
of hardware and software products not made by Axia
mentioned in this manual or accompanying material
are informational only. Axia makes no endorsement
of any particular product for any purpose, nor claims
any responsibility for operation or accuracy.
Warranty
This product is covered by a five year limited war-
ranty, the full text of which is included in the rear
section of this manual.
Service
You must contact Axia before returning any equip-
ment for factory service. Axia will issue a Return
Authorization number, which must be written on the
exterior of your shipping container. Please do not
include cables or accessories unless specifically re-
quested by the Technical Support Engineer at Axia.
Be sure to adequately insure your shipment for its
replacement value. Packages without proper authori-
zation may be refused. US customers please contact
Axia technical support at [phone]. All oth-
er customers should contact their local representative
to arrange for service.
We strongly recommend being near the unit when
you call, so our Support Engineers can verify infor-
mation about your configuration and the conditions
under which the problem occurs. If the unit must
return to Axia, we will need your serial number, lo-
cated on the rear panel.
About This Manual
This manual covers the details of the Axia IP-Inter-
com products. This document assumes that you are
familiar with Livewire’s basic concepts, as outlined
in the our Introduction to Livewire: IP-Audio Sys-
tem Design Reference and Primer manual.
If you have not done so, please review that mate-
rial first. In it we explain the ideas that motivated
Livewire and how you can use and benefit from it,
as well as nitty-gritty details about wiring, connec-
tors, and the like. Since Livewire is built on standard
networks, we also help you to understand general
network engineering so that you have the full back-
ground for Livewire’s fundamentals. After reading
Introduction to Livewire you will know what’s up
when you are speaking with gear vendors and the
network guys that are often hanging around radio
stations these days.
As always, we welcome your suggestions for im-
provement. Contact Axia Audio with your com-
ments:
Axia Audio, a Telos Company
1241 Superior Avenue
Cleveland, Ohio 44114 USA
Phone: [phone]
Web: www.AxiaAudio.com
E-Mail: [e-mail]

Introduction • v
Version 1.2.1 Aug 2010
Table of Contents
Customer Service . . . . . . . . . . . . . . . . . iii
Warranty . . . . . . . . . . . . . . . . . . . . . . iv
Service . . . . . . . . . . . . . . . . . . . . . . . iv
About This Manual . . . . . . . . . . . . . . . . . iv
A Note from the President of Axia . . . . . vii
Chapter One: Introducing Axia IP-Intercom . . . . . 1
Overview. . . . . . . . . . . . . . . . . . . . . . . . 1
IP-Intercom Stations: Front Panel . . . . . . . . . . . 2
Front Panel Connectors . . . . . . . . . . . . . . 2
Intercom Channel Controls . . . . . . . . . . . . 2
Talk . . . . . . . . . . . . . . . . . . . . . . . 2
Listen . . . . . . . . . . . . . . . . . . . . . . 2
OLED Display. . . . . . . . . . . . . . . . . . 2
Volume . . . . . . . . . . . . . . . . . . . . . 2
Mute Microphone . . . . . . . . . . . . . . . . 2
Mute Speaker . . . . . . . . . . . . . . . . . . 3
Select . . . . . . . . . . . . . . . . . . . . . . 3
Group . . . . . . . . . . . . . . . . . . . . . . 3
Assign/Enter. . . . . . . . . . . . . . . . . . . 3
CALLSTACK Controls (20-Station Panel) . . . 3
Keypad (20-Station Panel) . . . . . . . . . . . 3
Filmcap Buttons (Programmable). . . . . . . . 3
Livewire Status Indicators . . . . . . . . . . . . . 3
IP-Intercom Stations: Rear Panel . . . . . . . . . . . 4
Chapter Two: Setup and Operation . . . . . . . . . . . 7
Individual Channel Controls . . . . . . . . . . . . . 7
Talk . . . . . . . . . . . . . . . . . . . . . . . 7
Listen . . . . . . . . . . . . . . . . . . . . . . 7
Talk/Listen . . . . . . . . . . . . . . . . . . . . 7
OLED Display (Individual Channels) . . . . . 7
Other Controls . . . . . . . . . . . . . . . . . . . . . 7
OLED Display (CALLSTACK) . . . . . . . . . 7
Volume . . . . . . . . . . . . . . . . . . . . . 8
Mute Microphone (MUTE MIC) . . . . . . . . 8
Mute Speaker (MUTE SPKR) . . . . . . . . . . 8
Select . . . . . . . . . . . . . . . . . . . . . . 8
Group (20-Station Panel) . . . . . . . . . . . . 9
Assign (20-Station Panel) . . . . . . . . . . . . 9
CALLSTACK (20-Station Panel) . . . . . . . . 10
Keypad (IC.20 only) . . . . . . . . . . . . . . . 10
Film-Cap Buttons (IC.1 only) . . . . . . . . . 10
Console-Mounted Intercom Stations . . . . . . . . . 10
Chapter Three: Advanced Programming . . . . . . . . 13
Assigning an IP Address. . . . . . . . . . . . . . . . 13
IC.20 and IC.1 Intercom Web Pages. . . . . . . . . . 14
Home Page . . . . . . . . . . . . . . . . . . . . . 14
Intercom Configuration Page. . . . . . . . . . . . 14
External Sources Page . . . . . . . . . . . . . . . 16
Key Assign Page (IC.20) . . . . . . . . . . . . . . 17
Key Assign Page (IC.1) . . . . . . . . . . . . . . . 18
Livewire GPIO Page . . . . . . . . . . . . . . . . 18
Network and Quality of Service Page . . . . . . . 20
System Configuration Page . . . . . . . . . . . . . 22
Factory Reset (OLED panels only) . . . . . . . . . . 24
Display Tests. . . . . . . . . . . . . . . . . . . . . . 24
OLED Front Panel Test . . . . . . . . . . . . . . . 24
Legendable Buttons Front Panel Test. . . . . . . . 24
IP Address . . . . . . . . . . . . . . . . . . . . . . . 25
Intercom Expansion Configuration . . . . . . . . . . 25
IC.20 with IC.10X . . . . . . . . . . . . . . . . . 25
Element IP-Intercom Modules . . . . . . . . . . . . 26
Intercom Configuration. . . . . . . . . . . . . . . 26
Channel Assignment (10 and 20 Ch) . . . . . . . . 28
Channel Assignments (10-Btn Film Cap) . . . . . 28
GPIO Configuration . . . . . . . . . . . . . . . . 28
Intercom Livewire Sources . . . . . . . . . . . . . 29
Appendix A: Unbalanced Connections . . . . . . . . . 31
Appendix B: Connecting GPIO . . . . . . . . . . . . . 33
Appendix C: Specifications and Warranty . . . . . . . 41
Axia System Specifications . . . . . . . . . . . . . . 41
Axia Limited Warranty . . . . . . . . . . . . . . . . 43

Introduction • vi
Version 1.2.1 Aug 2010
Mcrhn ps.
Sp,  tn  n l.
A  roac day.

Introduction • vii
Version 1.2.1 Aug 2010
A Note From The President of Axia
20 years ago, I designed my first broadcast console
for PR&E. I look back on that time with great fondness;
we were building bullet-proof boards for the world’s
most prestigious broadcasters, making each new console
design bigger and fancier to accommodate a wider vari-
ety of source equipment and programming styles. The
console was the core of the studio; all other equipment
was on the periphery.
Then things changed: the PC found its way into
broadcast audio delivery and production. At first, PC
audio applications were simple, used only by budget
stations to reduce operating expenses. But soon the ap-
plications evolved and were embraced by larger stations.
Slowly, the PC was taking center stage in the radio stu-
dio.
Like many, I was captivated by the PC. Stations re-
tired carts, phonographs, open-reel decks,
cassettes — even more modern digital equip-
ment such as DAT and CD players, replac-
ing all with PC apps. Client/server systems
emerged and entire facilities began using
PCs to provide most – or all – of their re-
corded audio. Yet consoles continued to treat
PCs as nothing more than audio peripherals.
I knew that we console designers were going to have to
rethink our designs to deal with computer-centric stu-
dios.
During this time, traditional broadcast console com-
panies began producing digital versions. But early digi-
tal consoles were nearly identical in form and function
to their analog predecessors. It took a fresh look from a
European company outside broadcasting to merge two
products – audio routing switchers and broadcast con-
soles – into a central processing engine and attached
control surface. Eventually nearly every console and
routing switcher company followed suit, and a wide va-
riety of digital “engines” and control surfaces flooded
the market.
But, advanced as these integrated systems were, they
still handled computer-based audio sources like their
analog ancestors. Sure, the router and console engine
were now integrated, but the most important studio ele-
ment – the PC – was stuck in the past, interfaced with
100-year-old analog technology. The PC and console
couldn’t communicate in a meaningful way – strange,
considering that PCs everywhere were being networked,
fast becoming the world’s most popular and powerful
communication tool.
Then a group of Telos engineers developed a method
of using Ethernet to network real-time audio devices,
allowing computers and consoles, controllers and pe-
ripherals to interact smoothly and intelligently. Power-
ful, flexible networks had finally come to our studios. As
with the transition from carts to computers, the benefits
are many and impressive. A few networked compo-
nents can replace routing switchers, consoles, process-
ing peripherals, sound cards, distribution amps, selector
switches and myriad related devices.
This deceptively simple networked system costs a
fraction of other approaches, yet has capabilities sur-
passing anything else. The system is modular
and can be used to perform discrete functions
in a traditional environment. Concurrently, it
easily scales to serve both the humblest and
the very largest of facilities. Console, router,
and computer work in harmony.
So, equipped with this new technology
and countless ideas, we launch Axia, the new-
est division of Telos. Axia is all about delivering innova-
tive networked audio products to future-minded broad-
casters. On behalf of our entire team, I welcome you as a
charter client. Axia is the culmination of nearly 40 man-
years of some of the most ambitious R&D ever applied
to the radio industry. And this is only the beginning. We
have more products, innovations, and partnerships in the
pipeline.
You already know your Axia system is unlike any-
thing else. So it shouldn’t be surprising that your new
system is loaded with new thinking, new approaches,
and new ideas in virtually every conceivable area. Some
concepts will challenge your traditional ideas of studio
audio systems, but we’re certain that once you have ex-
perienced the pleasures of the networked studio, you’ll
never want to go back. And now, for something com-
pletely different...
Michael “Catfish” Dosch

Introduction • viii
Version 1.2.1 Aug 2010
Wh s  ne
th  ay rcv t n
 n  rng?

1: Introducing IP-Intercom • 1
Version 1.2 July 2010
Chapter One:
Introducing Axia IP-Intercom
Broadcasters have already discovered the advantages
of using Axia networks. Less cost, less wiring and less
setup time are just a few of the benefits gained from us-
ing Ethernet for real-time audio routing.
Now, broadcast intercom systems benefit from those
same advantages. Axia IP-Intercom Networks lower in-
stalled cost by using CAT-5 and standard switched Eth-
ernet for instant communication between multiple sta-
tions. And if you already have an Axia network in your
broadcast facilities, deployment is even easier. Axia IP-
Intercoms plug right into Livewire networks for tight
integration with Axia broadcast consoles and routing
systems; console operators’ existing console microphone
and preview speaker are used to provide seamless inter-
com communications right from the board.
IP-Intercom Overview
The family of Axia IP-Intercom products includes
several models of rack-mounted panels and console-
mounted modules as well as a software intercom panel
and desktop versions (coming soon).
Rackmount Stations:
• IC.20 20-station panel with OLED displays
• IC.10X 10-station expansion panel with OLED dis-
plays
• IC.1 10-station panel with user-labeled buttons
Element Console Stations:
• 20-station panel with OLED displays
• 10-station panel with OLED displays
• 10-station panel with user-labeled buttons
Desktop Intercom Stations and SoftCom Intercom Sta-
tion for Windows are currently under development and
will be released in the near future.
Axia’s IP-Intercom products may operate as a stand-
alone intercom system. The IP-Intercom system also in-
tegrates seamlessly with console and routing functions
of any existing Axia Livewire network.
Many of us are familiar with Axia’s Element console
and know that every Element surface fader module has
built-in talkback to/from any connected source. These
standard communication capabilities are more advanced
than those normally found on high-end many broadcast
consoles and will satisfy most intercommunication re-
quirements found in radio.
Some more complex operations such as broadcast
news or live productions may require more extensive
features. The enhanced intercom capabilities needed in
these demanding environments is provided by Axia’s
rack-mount intercom stations as well as drop-in Ele-
ment modules and a software IP-Intercom station (com-
ing soon). Axia IP-Intercom can also be integrated into
a facility that consists of only Livewire audio and GPIO
nodes.
Axia IP-Intercom equipment introduces AEC (Ad-
vanced Echo Cancellation) technology licensed from
Germany’s Fraunhofer Institute (the inventors of MP3).
AEC is a revolutionary echo-cancellation technology
which enables full duplex operation without the use of
headphones. AEC allows simultaneous Talk and Listen
without feedback or comb-filtering. It is no longer neces-
sary to mute or dim the Listen loudspeaker when Talk-
ing.
NOTE: Only approved and properly programmed
Ethernet switches incorporating the proper Mul-
ticast and QoS standards should be used. See
www.AxiaAudio.com/switches/ for details.

1: Introducing IP-Intercom • 2
Version 1.2 July 2010
IP-Intercom Stations: Front Panel
The rackmounted Livewire IP-Intercom stations in-
corporate a number of front panel connectors, controls
and indicators to allow the operator to operate the system
quickly and confidently. Front and rear panel views are
shown for the 20-station OLED display and the 10-sta-
tion film-cap user-legendable stations. The Element con-
sole versions of these stations incorporate the same con-
trols in slightly different physical layouts.
Front Panel Connectors
Microphone Jack
This jack is used for a panel-mount microphone with
a 1/4 inch Tip-Ring-Sleeve connector. One popular inter-
com microphone is the Telex MCP-90-8.
Intercom Headset Connector
This is a 4-pin XLR-M connector used to connect
an industry standard intercom headset that incorporates
both a microphone and a headphone. One example is
the Production Intercom SMH210 Single Muff Headset.
There are numerous other manufacturers of these head-
sets that all use the following 4-pin wiring convention:
Pin 1: Mic common
Pin 2: Mic hot
Pin 3: Headphone common
Pin 4: Headphone hot (mono)
Intercom Channel Controls
This section provides only some basic information
on the device controls. Please refer to Chapter 2: Setup
and Operation for an in-depth discussion of the opera-
tion of the IP-Intercom panels.
Talk
This button may be used in momentary or latch
modes. You may press and hold the Talk button to talk.
You may also tap to latch Talk mode and tap again to
release Talk mode.
Listen
Press and hold the Listen button to listen momen-
tarily. Tap the Listen button to latch Listen mode and tap
again to release Listen mode.
OLED Display
This 10-character display shows the Label of the
channel assigned to the adjacent Talk and Listen buttons.
Volume
The rotary Volume control is used to adjust the over-
all level of the loudspeaker audio.
Mute Microphone
Tapping the Mute Microphone button alternately
enables and disables the microphone ensuring privacy if
necessary.
Figure 1-1: IC.20 - Front Panel Callouts

1: Introducing IP-Intercom • 3
Version 1.2 July 2010
Mute Speaker
Tapping the Mute Speaker button alternately en-
ables and disables the audio from the local speaker.
Select
The Select control is used to scroll through various
menu options and to and select from pending calls. See
the section that follows on the CALLSTACK channel.
Group
The Group button enables the user to talk to multiple
users with one press.
Assign/Enter
This button is used to assign devices to the IP-Inter-
com Group. It doubles as the “enter” key. See Chapter 2
for details on Group functions.
CALLSTACK Controls (20-Station Panel)
This channel is used for monitoring and calling sta-
tions that are not assigned to a specific Talk/Listen chan-
nel on the user’s panel. See Chapter 3 for details.
Keypad (20-Station Panel)
A 12-button telephone-style dialing keypad will be
used for features to be added in the future.
Filmcap Buttons (Programmable)
The model IC.1 rackmount 10-key Intercom station,
shown in Figure 1-2, features 10 buttons that are used
in the same manner as the Talk/Listen buttons on the
20-channel unit. These functions are programmed in the
web browser configuration. Button caps are manually
labelled using your favorite word processor or spread-
sheet software. Create the 1/2 inch square labels for
these buttons. Use your fingers to pop off the button cap
and insert your label behind the clear button cap.
Livewire Status Indicators
Four LEDs indicate the status of the Livewire and
Ethernet connections, as well as system synchronisation
as follows:
Net
When illuminated continuously, this LED represents
the presence of a live Ethernet link to another Ethernet
100Base-T device. If no Ethernet link is present, this
LED flashes slowly.
Sync and Master
Only one of these two LEDs should be illuminated.
The SYNC LED indicates the receipt of clock informa-
tion from another (Master) Livewire device. The MAS-
TER LED indicates that this device is acting as the mas-
ter clock source for the Livewire network.
Livewire
This LED indicates that Livewire traffic is present on
the connected Ethernet segment.
NOTE: Axia console mounted IP-Intercom sta-
tions use the Control Room Microphone and the
Preview speaker instead of the mic/line inputs
and front panel speaker of the rack-mount mod-
els discussed here.
Please refer to Chapter 2: Setup and Operation for
detailed descriptions of the IP-Intercom station controls.
Figure 1-2 IC.1 Front Panel Controls

1: Introducing IP-Intercom • 4
Version 1.2 July 2010
IP-Intercom Stations: Rear Panel
All rackmounted intercom stations have identi-
cal rear panel configurations with the exception of the
10-station intercom expander. This expansion unit has
only a Livewire jack, ID button and AC connector. The
rear panel of the 20-station panel is illustrated in Figure
1-4 and described in the following section.
Livewire (100 Base-T) Connector
This connector is for connection to an approved Eth-
ernet switch. It has two integral LEDs. The green “Link”
LED indicates the presence of a live signal (same as the
front panel “NET” LED). The “Activity” LED indicates
that Ethernet packets are being sent or received over the
link.
IMPORTANT NOTE: Axia IP-Intercom stations
are intended for use with an Ethernet Switch
that supports multicast and QOS (Quality of
Service). If you attempt to use them with non-
switched Ethernet hubs, or a switch that is not
enabled for multicast, you will experience net-
work congestion that could disrupt other net-
work activity. Information on qualied Ethernet
switches is found here: http://www.axiaaudio.
com/switches/default.htm
ID Button
This recessed switch allows you to assign an IP ad-
dress to a new unit. An IP address is required so you can
use your web browser to setup the advanced features of
the IP-Intercom panel. When the ID button is pressed,
you are prompted to enter an IP address and subnet mask
from the front panel controls. Pressing this button also
triggers the IP-Intercom panel to identify itself and re-
quest an IP address from a BootP server on the Ethernet
network (more on this later).
Audio Input and Output Connectors
Line Level Analog Audio
All RJ-45 line-level input and output connections to
IP-Intercom stations are dual channel connectors. Each
pair of audio inputs on the Analog Line shares an 8-posi-
tion / 8-pin RJ-45 modular jack. The connector pin func-
tions are shown in the table that follows. Inputs are mono
- left channel only. Outputs are dual channel mono.
Figure 1-3: RJ-45 Pin Locations
81
IMPORTANT NOTE: Axia recommends using
balanced audio for analog audio connections.
If unbalanced sources are to be connected to
these inputs, we strongly recommend using a
balun (transformer) or balanced-to-unbalanced
buffer amplier at the source device. Such
devices are readily available, for example the
StudioHub “Match Jack”.
RJ-45 ANALOG LINE CONNECTORS
Pin Function:
1 Left Channel +
2 Left Channel -
3 Right Channel + (on output only)
4 Not Connected
5 Not Connected
6 Right Channel - (on output only)
7 Not Connected
8 Not Connected
Three-pin XLR connectors are also available for
mono line level analog audio connection in and out of
the IP-Intercom rear panel. Industry standard pin con-
ventions are followed.
Pin 1: Ground (optional connection)
Pin 2: Analog Audio +
Pin 3: Analog Audio -
Microphone Input
A 3-pin XLR-F connector is supplied for a balanced
microphone input to the system. Phantom Power is en-
abled from the web page configuration.
Pin 1: Ground (Mic shield)
Pin 2: Microphone +
Pin 3: Microphone -

1: Introducing IP-Intercom • 5
Version 1.2 July 2010
Analog Line Input Characteristics
• Level: +4 dBu nominal (+24 dBu clip point)
• Impedance : >/= 10 K Ohm balanced.
Analog Microphone Input Characteristics
• Level: -83 to -28 dBu nominal, adjustable in 1
dB steps
• Headroom: 20 dB above nominal
• Impedance: ≥ 4 KOhm balanced
Analog Output Characteristics
• Level: +4 dBu nominal (+24 dBu clip point)
• Impedance: < 50 Ohm
Note: All microphone and line inputs are in-
ternally summed. All outputs are dual-channel
mono.
GPIO Port
The rear panel contains a 15-pin control connector
with a logic input to mute the internal speaker, a logic
output to dim/mute the console speakers when the in-
tercom microphone is unmuted as well as a logic output
to signal when the intercom is being signaled (ringing).
A logic output is also provided, which follows the front
panel Line-Active warning LED. The GPIO pin assign-
ment are shown in the table that follows.
These signals are available as electrical signals on the
rack mount unit (or other Livewire GPIO ports) and as
software GPIO on all intercom channels.
IP-Intercom GPIO Connector Pinouts
Pin Function:
1 Listen Active Lamp
2
3 Ring Lamp
4 Mic Mute Lamp
5 Line Active Lamp
6
7
8
9
10
11
12 Mute Preview/Speaker Command
13
14
15
AC (Mains) Power
The AC receptacle connects mains power to the unit
with a standard IEC power cord. The power supply has
a “universal” AC input, accepting from 90 to 240 VAC,
47-63 Hz. Fuses are located inside the chassis.
Figure 1-4: IC.20 - Rear Panel Callouts

1: Introducing IP-Intercom • 6
Version 1.2 July 2010
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sv r ts h.

2: Basic Setup and Operation • 7
Version 1.2 July 2010
Chapter Two:
Setup and Operation
Chapter 1: Introducing Axia IP-Intercom described
the physical connections to the IP-Intercom stations. This
chapter will discuss the operation of the IP-Intercom sta-
tions when used as a standalone system or in conjunction
with your Element console and Livewire audio nodes.
Please be sure to read Chapter 3: Advanced Pro-
gramming so you will understand how you assign the IP
address and Livewire channel numbers to your IP-Inter-
com station. Chapter 3 also describes the web page in-
terface and the advanced features and capability of your
IP-Intercom system.
Individual Channel Controls
Talk
This key may be used in momentary or latching
modes. To use it as a momentary PTT (push-to-talk)
switch, you may press and hold the Talk key to talk. If
you want to us it as a latching control, you can tap to
latch Talk mode and tap again to release Talk mode.
The red Talk LED illuminates during Talk Mode, or
when the remote station associated with that key is lis-
tening. The Talk LED may flash to indicate a fault (at-
tempt to communicate with faulty or disconnected panel,
route is locked out by studio IFB, function is overridden
by another station, system failure prohibits completing
route, etc.)
PRIVACY NOTE: If a remote user is assigned
to one of your intercom channels and that user
presses his Listen key (corresponding to your
station), the Microphone LED will indicate solid
RED. This means that the remote user is lis-
tening to you. This is desirable if you want fast,
hands-free operation. If you want to ensure your
privacy - be sure to press your Mute Mic key.
Listen
In a manner identical to the Talk button, this key may
also be used in two different ways. You may press and
hold the Listen key to listen momentarily. You may also
tap the Listen key to latch Listen mode and tap again to
release Listen mode. You may also press multiple keys
and listen on more than one channel if desired.
The yellow Listen LED illuminates during Listen
Mode when an assigned remote station is calling the lo-
cal station. The Listen LED will continue to flash for 5
seconds (by default) after the remote user has discon-
nected to indicate who has recently called. This is use-
ful in a busy operation where there are many short calls
making it difficult to keep track of who has spoken to
you while you are concentrating on other tasks.
Talk/Listen
If you want to initiate a full-duplex hands-free con-
versation with a remote station, simply press both Talk
and Listen keys. As long as the remote microphone is not
muted, the two-way communication can proceed with-
out any action on the part of the remote user. Remember
communication among IP-Intercom stations is always
full-duplex. Hands-free operation may not be available
when communicating with third-party equipment that
does not support full-duplex operation.
OLED Display (Individual Channels)
This 10-character display will show the Label of the
Source that is assigned to the adjacent Talk and Listen
buttons. The upper part of the display refers to the but-
tons above the display and the lower part of the display
refers to the buttons below the display.
If you have configured the channel with an Alter-
nate Label, that alternate name will be displayed.
Other Controls
OLED Display (CALLSTACK)
This high contrast OLED (Organic Light Emitting
Diode) display is context dependent and is used to dis-
play many different parameters in conjunction with the

2: Basic Setup and Operation • 8
Version 1.2 July 2010
Select control and Assign/Enter key. Those controls are
fully described in subsequent sections.
Volume
The rotary Volume control performs three functions.
• It is used to adjust the overall level of the loud-
speaker audio by simply rotating the control.
• When the Volume Control is rotated while push-
ing a Listen button, it adjusts the audio level of
only that source on the panel loudspeaker with-
out affecting the levels presented for that source
elsewhere in the system. When a channel is
removed from listen mode, the default level is
restored.
• The headphone level can be controlled by push-
ing the Volume control encoder and adjusting
the volume while pushed. When released, nor-
mal operation will resume.
Mute Microphone (MUTE MIC)
Tapping the Mute Microphone key alternately en-
ables and disables the microphone. The red LED illumi-
nates when the microphone is muted and extinguishes
when the microphone is active.
Whenever the intercom station is powered up, the
analog output and Livewire source may be active. If you
want the freedom of hands-free communication with
other stations, make sure the Mute Mic LED is not illu-
minated. Alternately, to ensure your privacy, you should
use the Mute Microphone function.
Mute Speaker (MUTE SPKR)
Tapping the Mute Speaker button alternately en-
ables and disables the audio from the local speaker. The
red LED illuminates when the speaker is muted and ex-
tinguishes when the local speaker is active. Note that the
speaker may also be muted by a contact closure to the
GPIO port input 2 (pin 12).
Select
The Select control is used for several functions:
• The Select control is used in injunction with the
Assign/Enter key to scroll and select from op-
tions in the Assign, Shift and Status menus. See
the section on the Assign key for the details of
Figure 2-1: IC.20 Front Panel Controls
Figure 2-2: IC.10X - Expander Chassis

2: Basic Setup and Operation • 9
Version 1.2 July 2010
these menus.
• The Select control can also scroll and select in-
coming calls from stations not assigned to a lo-
cal channel. See the section that follows on the
CALLSTACK channel.
• Pressing the Select control will toggle between
the main and alternate Channel Labels. This
switches all labels on keys and menus. If an al-
ternate label is not available, the main label will
remain on the display
The Select control is used in combination with the
Assign/Enter key to navigate menus. Pressing the As-
sign key performs the “enter” function thus choosing the
highlighted option.
Group (20-Station Panel)
The Group button enables the user to talk to multiple
sources with one press. It is used in two different ways:
• The Group button is used as a Group Talk key
to talk to your station group (discussed below)
in momentary or latching modes. To use Group
as a momentary PTT (push-to-talk) key, simply
press and hold the Group button. If you want
to us this as a latching control, you can tap to
latch Group Talk mode and tap again to release
Group Talk mode.
• Pressing the Assign button and then the Group
button will enter Group Assignment mode, at
which point the Group LED will flash. Tap any
number of channel Listen keys that you wish to
join into the group. Tap any number of previ-
ously selected Listen buttons that you wish to
remove from the group. Talk and Listen LED
indicators illuminate to show group assignment
state. Tap the Group button to leave assignment
mode and its LED extinguishes.
Assign (20-Station Panel)
The Assign key is used in conjunction with the Se-
lect control for several functions. The Assign key works
like an “enter” key to:
• Assign channels to the Talk/Listen buttons.
• Program the channels that are assigned to the
Group button (described previously).
• Choose pre-programmed Shift pages.
• Choose other parameters in IC.20 menus in con-
junction with the Select control.
The IC.20 Menu Tree is illustrated in Figure 2-3. The
Select control is used to scroll through the menu options
and the Assign/Enter key is used to choose the high-
lighted option. Menu Tree descriptions follow:
• Home Page - lists the CALLSTACK (incom-
ing call requests) plus the ASSIGN, SHIFT and
STATUS options.
• ASSIGN - takes you to a list of available inter-
com users that can be assigned to dedicated in-
tercom channels. Scroll with the Select control
and press the Assign key to make a selection.
Then press the Microphone key on the channel
to which you wish to assign the new user.
• SHIFT - takes you to a list of presets, referred
to as Shift Pages. These preset Shifts are used
to load up entire 20-channel key configurations.
The Select control is used to scroll the list and
the Assign key is used to make your choice.
• STATUS - takes you to a page that will list vari-
ous status parameters. The current version of the
software displays the IC.20 Intercom Label and
the temperature (degrees C) of the unit.
Figure 2-3: IC.20 Memu Tree

Version 1.2 July 2010
2: Basic Setup and Operation • 10
• In all menus, selecting Back will take you back
to the Home Page.
CALLSTACK (20-Station Panel)
This CALLSTACK channel (found only on the
20-station rackmount panel and the 20-station Element
console module) is used for monitoring and calling sta-
tions that are not assigned to a specific Talk/Listen chan-
nel on the user’s panel. The OLED lists up to four ring-
ing, active and last completed calls. Press Talk to talk
to the present source displayed. You can use the Select
control to scroll through the call list.
• The Listen LED flashes yellow when the local
user is being called by a station not assigned to
one of the Talk/Listen channels on the called sta-
tion panel, and continues to flash for approxi-
mately 40 seconds or until call is answered.
• The Talk LED flashes red when a remote user
is attempting to Listen to you. The Talk LED
is solid red when you have selected Talk Mode.
It may flash red to indicate a fault (attempt to
communicate with faulty or disconnected panel,
route is locked out by studio IFB, system failure
prohibits completing route, etc.)
Keypad (IC.20 only)
The keypad will be used for enhancements that will
be added in the future. In a networked studio environ-
ment, there are many possibilities. Stay tuned - we
wouldn’t put it there if we didn’t have a plan for it!
Film-Cap Buttons (IC.1 only)
The 10-button Intercom panel shown in Figure 2-4
features 10 film-cap buttons that are programmed in the
web page setup of the IC.1. These buttons may be con-
figured as Talk or Listen buttons. They may also be con-
figured as combination Talk/Listen buttons that provide
the equivalent of pressing both the Talk and Listen but-
tons on an IC.20 station. This allows an IC.1 user to open
up full two-way communication with a user by pressing
a single button.
Note that the Film-Cap buttons cannot be pro-
grammed from the front panel of the IC.1. The web
page setup must be used to configure these buttons. See
Chapter 3: Advanced Programming for details.
Console-Mounted Intercom Stations
Connecting console-mounted IP-Intercom stations
couldn’t be easier. Each of these modules is equipped
with a CANBus RJ-45 connector. All data communica-
tion and power is provided by the CANBus connection.
The console-mounted modules are highly integrated
with the Element console and do not have dedicated
GPIO or audio connectors.
To get started, simply connect the IP-Intercom con-
sole module to the CANBus distribution hub in your
Element console using a CAT5-E patch cable. Note
that more than one IP-Intercom module in an Element
console is unsupported so any setting of the ID selector
switch on the circuit board will be acceptable.
Once you have connected the Intercom module, it
may be necessary to ensure that the Element knows
about it. To do this, enter the Element capture mode by
pressing both * and 2 keys on the Element keypad for 5
seconds. When you see “Capture” displayed above each
Figure 2-4: IC.1 Front Panel Controls

2: Basic Setup and Operation • 11
Version 1.2 July 2010
fader, press the Enter key.
The Intercom module will
now be available.
The 10-station and
20-station modules as well
as the 10-station film-cap
module are shown here.
The controls are identical
to their rackmounted coun-
terparts.
Operation is nearly
identical to rackmounted
units with the difference
being Element integration
details. The audio source
for the console modules is
the Talkback audio of the
Element (generated by the
CR Microphone). The CR
Headphone and Preview
speaker are used instead of
the headphone and speaker
that is built into the rack-
mount panels. The Ele-
ment’s External Preview
source must be specified as
the Intercom’s Preview Mix
Livewire channel. Chapter
3 provides details on this
topic.
GPIO ports can be as-
signed to the Intercom module or external sources if
desired. IP-Intercom logic signals include an input to
mute the audio feeding the preview system, a logic out-
put to activate whenever the microphone path is muted
as well as a logic output to signal when the intercom
is being signaled (ringing). A logic output is also pro-
vided which follows the front panel Line-Active warning
LED. Please refer to Appendix B: Connecting GPIO
for more information on GPIO.
The web page configuration for the Element inter-
com modules is contained within the StudioEngine or
PowerStation Mix Engine configuration since it is the
Engine that creates and manipulates the intercom audio
streams. Advanced setup of the IP-Intercom modules for
the Element console is covered in Chapter 3.
What’s Next
Now you know the essentials of wiring and using
your IP-Intercom, In Chapter 3, we’ll learn about the
advanced configuration of your IP-Intercom system. q
Figure 2-5: 10-Station
Film-Cap Element
Intercom Module
Figure 2-6: 10 and 20-Station OLED Element
Intercom Modules

2: Basic Setup and Operation • 12
Version 1.2 July 2010
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