Attero Tech unD6IO User manual

Attero Tech, LLC
1315 Directors Row, Suite 107, Ft Wayne, IN 46808
Phone [phone] • Fax [phone]
www.atterotech.com
614-00029
unD6IO
4x2 Multi-IO Dante® Wall Plate Interface
User Manual
Date 03/14/2018
Revision 02_c

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IMPORTANT SAFETY INSTRUCTIONS
The symbols below are internationally accepted symbols that warn of potential hazards with electrical products.
This symbol, wherever it appears, alerts you to the presence of un-insulated dangerous voltage inside the
enclosure -- voltage that may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the
accompanying literature. Please read the manual.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Protect the power cord (Ethernet cable) from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
10. Only use attachments/accessories specified by Attero Tech
11. Unplug this apparatus during lightning storms.
12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in
any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
13. If rack mounting, provide adequate ventilation. Equipment may be located above or below this apparatus but
some equipment (like large power amplifiers) may cause an unacceptable amount of hum, or may generate too
much heat and degrade the performance of this apparatus.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

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LIMITED FIVE YEAR WARRANTY
The equipment is warranted for five years from date of purchase from Attero Tech, LLC against defects in materials or
workmanship. This warranty does not cover equipment which has been abused or damaged by careless handling or
shipping. This warranty does not apply to used or demonstrator equipment. Should any defect develop, Attero Tech, LLC
will, at our option, repair or replace any defective parts without charge for either parts or labor. If Attero Tech, LLC cannot
correct the defect in the equipment, it will be replaced at no charge with a similar new item. Attero Tech, LLC will pay for
the cost of returning your equipment to you. This warranty applies only to items returned to Attero Tech, LLC, shipping
costs prepaid, within five years from the date of purchase. This Limited Warranty is governed by the laws of the State of
Indiana. It states the entire liability of Attero Tech, LLC and the entire remedy of the purchaser for any breach of warranty
as outlined above. NEITHER ATTERO TECH, LLC NOR ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE
EQUIPMENT SHALL BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, CONSEQUENTIAL, OR INCIDENTAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THIS EQUIPMENT EVEN IF ATTERO TECH, LLC HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES. IN NO EVENT SHALL THE LIABILITY OF ATTERO TECH, LLC EXCEED THE PURCHASE PRICE OF ANY
DEFECTIVE EQUIPMENT.
This warranty gives you specific legal rights. You may have additional legal rights which vary from state to state.
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules and EN55022. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference, in which case the user will be required to correct the interference at
their own expense
This symbol means the product must not be discarded as household waste, and should be delivered to an
appropriate collection facility for recycling. Proper disposal and recycling helps protect natural resources,
human health and the environment. For more information on disposal and recycling of this product,
contact your local municipality, disposal service, or the business where you bought this product.

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Contents
1 –Overview.....................................................................................................................................................................................................................4
1.1 –What’s in the Box ..................................................................................................................................................... 6
1.2 –Optional Extras......................................................................................................................................................... 6
1.3 –Device Features ........................................................................................................................................................ 7
1.4 –Mounting and Installation ........................................................................................................................................ 8
1.5 –Error Reporting......................................................................................................................................................... 9
1.6 –Hardware Connections ............................................................................................................................................. 9
1.6.1 –Balanced Output to a Balanced Input............................................................................................................... 9
1.6.2 –Balanced Output to an Unbalanced Input ........................................................................................................ 9
1.7 –Factory Reset.......................................................................................................................................................... 10
2 –Device Configuration ........................................................................................................................................................................................ 11
2.1 –IP Address Setup .................................................................................................................................................... 11
2.2 –Software Control .................................................................................................................................................... 12
2.3 –3rd Party Control ..................................................................................................................................................... 12
2.4 –Control Interface Type ........................................................................................................................................... 12
2.4.1 –Using the Command interface ....................................................................................................................... 12
3 –ARCHITECTS & ENGINEERING SPECIFICATION...................................................................................................................................... 13
3.1 –unD6IO A&E Specifications .................................................................................................................................... 13
3.2 –Device Specifications................................................................................................................................................ 1
APPENDIX A –Reference Documents...............................................................................................................................................................A-1

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1 –Overview
The unD6IO DanteAudio interface is 4x2 Dante multi-I/O wall plate interfaces designed for in-wall installation into 2-
gang US junction boxes. Its form-factor and I/O density make it easy to put Dante connectivity close to audio sources
used in professional AV installations –thereby eliminating costly and interference prone analog wiring, power supplies
and giving a clean, finished look to an AV installation all while providing the superior audio system flexibility with Dante
audio networking.
The unD6IO features two balanced line-level inputs on XLR connectors. Each input features a software controlled mic
preamp with software switchable 48V phantom power.
The unD6IO also features two sets of stereo line-level audio connections for consumer audio device connectivity. The RCA
inputs (IN 3/4 A) and 3.5mm stereo input (IN 3/4B) are software selectable to be used as two independent stereo inputs,
or summed as shown in the following signal flow diagram.
Figure 2 - unD6IO Signal Flow Diagram
Dante is a trademark of Audinate Pty. Ltd.
Network
Interface
IN 2A-R
IN 2A-L
IN 1
IN 2B-L/R
OUT 1/2
TX AUDIO CH 1
TX AUDIO CH 3
RX AUDIO CH 1
RX AUDIO CH 2
MONO
SUM
MONO
SUM
RCA
1/8"
1/8"
XLR-F
IN 2 TX AUDIO CH 2
XLR-F
TX AUDIO CH 4
In-wall
Analog
Outputs
(x2)
Digital
Volume
Control
On outputs
Mic/Line Preamps
Figure 1 - unD6IO Overview

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All four input paths from both the balanced and unbalanced inputs are digitized and then introduced as discrete channels
on the Dante network. In addition to the input functionality, the unD6IO also features two output channels which can be
received independently from the Dante network. The outputs are available on the front panel via a 3.5mm stereo jack
output connector and also on a 6-way de-pluggable Phoenix style connector on the side of the unit. The Phoenix audio
output connections are intended for use with a companion wall plate (sold separately) and installed in a 3-gang junction
box.
Figure 3 - unD6IO with unAX2O Plate (Front)
Figure 4 - unD6IO with unAX2O Plate (Rear)

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Connection to the Dante network is provided by a single Ethernet RJ45 connector on the back of the unit. The unD6IO is
PoE-enabled which allows the unD6IO to be powered over its network cable from a suitable PoE source (IEEE 802.3af)
eliminating the need for a local power supply. This is particularly useful as the unD6IO can then be mounted in remote
location where access to a mains outlet would be limited or indeed, non-existent.
Audinate’s Dante Controller or other 3rd party manufacturer's Dante routing software can be used to control the audio
routing configuration of the device while the Attero Tech unIFY Control Panel application (V2.0 or later) or supporting
DSP partner software can be used to configure the device-specific features.
The unD6IO also supports third party control systems allowing external configuration of its settings such as phantom
power and input gain in real time. Further information on 3rd party control can be found later in this document in
section 2.3 –3rd Party Control.
1.1 –What’s in the Box
The device comes supplied with the following:
o(1) unD6IO
o(1) 2-gang Decora cover plate cover w/mounting screws
o(1) 6-position Phoenix plug connector
1.2 –Optional Extras
The following are available as options for the unD6IO and that may be ordered separately:
ounAX2O - Passive Dual XLR Male single gang Decora wall plate - P/N: 900-00187-01
(Comes with 3-gang Decora cover plate).

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1.3 –Device Features
XLR Balanced Mic/Line inputs 1/2
Stereo unbalanced line level inputs 3/4 A&B
3.5 mm stereo unbalanced outputs 1/2 A
Front panel POWER & ID LED status indicator
In-wall balanced audio line outputs on de-pluggable Phoenix connectors (Outputs 1/2 B)
Recessed RJ-45 connector
*Note: The unD6IO has a label on the front of the metal housing at the top that shows the he devices MAC address. This
is important for initial device identification as the last six digits make up part of the devices default network name that
is shown when the device is detected by Dante Controller. The full MAC address is also given on the back of the unit.
12
3
4
5
6
6

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1.4 –Mounting and Installation
A typical installation will involve mounting the wall plate into a pre mounted 2-gang or larger wall box, standard drywall
bracket or mud ring. Before starting, make sure the wall box where the unD6IO is to be installed is pre-wired with a
suitable CAT5e or better cable back to a PoE-enabled network switch or mid-span injector. If a mid-span injector is being
used, the cable should be connected to the port that supplies both Ethernet and power (refer to the mid-span injectors
manual if unsure which port is which). The unD6IO packaging includes all of the necessary screws for mounting the
product and the included Decora wall plate.
*Note: All Attero Tech products are tested using UTP cabling and it is recommended that UTP cabling be used when
installing them. STP cabling can be used for installation though care must be taken not introduce grounding issues into
the system by doing so.
Attach the network cable from the switch/mid-span injector to the Dante I/F port of the Dante unD6IO. If the switch or
mid-span injector is already running and PoE is enabled, the unit should power up and the green ID LED on the front of
the device should turn on.
With the cable attached, carefully place the unD6IO into the wall box taking care to not trap the cabling. Once fully in
place, secure it with the screws provided. Once the unit is secured in the wall box, fit the Decora plate over the front of
the unit and secure it with the screws provided with it. It is recommended to not over-tighten the screws that attach the
included Decora wall plate to prevent cracking it.
Figure 5- Dimensioned Drawing

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1.5 –Error Reporting
The unD6IO is equipped with error reporting features. Upon power up, the front panel power LED will briefly light red and
then change to green if the device boots successfully. If the LED remains on solid red, this indicates a device failure. If
power cycling the unit does not correct this problem, contact Attero Tech technical support.
1.6 –Hardware Connections
The unD6IO provides balanced audio outputs to external analog audio equipment. Refer to the following diagrams and
instructions for connecting different types of audio devices to the outputs of the unD6IO. Professional grade audio cabling
is recommended to achieve the best audio performance throughout the system.
1.6.1 –Balanced Output to a Balanced Input
+
-
3-Wire Cable
Pin 1
Pin 2
GND
Balanced Output
Terminal Block Plug
Pin 3 12
3
XLR-M
+
-
3-Wire Cable
Sleeve
Tip
GND
Ring
12
3
TRS Plug
Balanced Output
Terminal Block Plug
Figure 6 - Balanced Wiring Guide
1.6.2 –Balanced Output to an Unbalanced Input
Balanced Output
Terminal Block Plug
2-Wire Cable
Sleeve
Tip
TS Plug
Balanced Output
Terminal Block Plug
+
-
2-Wire Cable
Sleeve
Tip
RCA Plug
GND
+
-
GND
Figure 7 –Unbalanced Wiring Guide

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1.7 –Factory Reset
The unD6IO has a factory reset option. Using it will reset all the devices parameters back to their factory defaults including
all the Dante settings such as device name, channel names as well as the device settings such as input select. The devices
IP address mode is also reset back to getting a dynamic IP.
Access to the factory reset button is through a small circular hole on the
underside of the unit, next to the ventilation cutouts.
To use the factory reset, insert a small screwdriver or paperclip into the
hole to activate the factory reset switch. There should be a noticeable
“click” when it’s activated. Hold the switch in for 5 to 10 seconds then
release. If the factory reset was successful, the unit will actually reset
indicated by the power LED will turning red.

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2 –Device Configuration
Certain 3rd party manufacturers provide audio routing functionality from within their own configuration application.
Check the applications manual/help or contact the manufacturer in question to see if this is supported. If not supported
by a 3rd party tool, the audio routing may be carried out using Audinate’s Dante Controller. Dante Controller can be
obtained from the Audinate website (www.Audiante.com) and is available for both Mac and PC. Instructions on how to
use this application and about setting up routes on a Dante network can also be found on Audinate’s website.
*Note: When using Dante controller, the unD6IO will be shown using a default device name of “unD6IO-######”where
‘######’ is the last six characters of the devices MAC address.
2.1 –IP Address Setup
********************************************************* IMPORTANT ******************************************************
Failure to correctly configure IP addresses will not allow an unD6IO device to correctly authenticate in the unIFY Control
Panel software and while it will show up in Dante Controller, the devices parameters will not be available. The input and
output channels also won’t be visible and routing of audio to and from the device will not be possible.
*****************************************************************************************************************************
In order to configure an unD6IO, both to set up internal parameters and also setup audio routing, the PC/Mac will need
to be able to communicate with the devices over the network. While all Dante devices will be discovered regardless of the
IP address setup on the PC or Mac, communication can only occur if the PC/Mac and the device have compatible IP
addresses.
By default, the unD6IO is set to get a dynamic IP address. As with all Dante devices, if the unD6IO does not find a DHCP
server to retrieve an IP address from, it will give itself an local link address sometimes also known as an automatic private
IP address (APIPA) instead. A local link IP address is always in the range 169.254.x.y.
To ensure communication, the PC/Mac can either be set to get a dynamic IP address, or be given a static IP address in the
range 169.254.x.y. The PC may require a restart if its IP address is changed for the change to take effect.
In some applications, IP addresses of devices may need to be set to something specific and that can be done once initial
communication has been established. Bear in mind however that if a static IP address is assigned to a device and that
static IP address is in a different range to the IP it was previously using to communicate with the PC/Mac, the PC/Mac will
lose communication with the device until such time as the PC/Mac IP address is also changed to an IP in range of the
devices new IP address.
Further information on IP setup for an audio system using Dante can be found in the FAQ’s on the Audinate website
(https://www.audinate.com/resources/faqs).

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2.2 –Software Control
The unD6IO device parameters such as preamp control and input switching are fully supported in Attero Tech's unIFY
Control Panel software (V2.0 or later). Refer to the Help documentation within the unIFY application for support.
2.3 –3rd Party Control
The unD6IO supports 3rd party control allowing external system to manage the unD6IO’s settings such as phantom power,
mic/line gain options and control of presets.
There are two control interface types available for the unD6IO. The first type is a Dante proprietary interface (-C) which is
typically used by devices already that have built-in support for Attero Tech devices. The second type supports a 3rd party
UDP interface (-U) and is available to anyone to use with any device capable of sending and receiving UDP messages.
Information on the commands the unD6IO supports as well as details of how to use the 3rd party UDP interface can be
found in the unIFY 3rd party Software API document, available from the registered users section of the Attero Tech website
(Go to www.atterotech.com and click on the log-in option).
2.4 –Control Interface Type
The type of control interface a specific unD6IO supports is defined by the Dante firmware it has been loaded with. Refer
to the Help documentation within the unIFY Control Panel software for details on how to determine the control interface
type that your device actively supports.
A devices initial control interface is chosen when ordering the unit. However, it can be easily changed though once the
unit is in the field by updating the device’s Dante firmware. The tools and necessary firmware files for updating a device’s
control interface can be obtained from the registered users section of the Attero Tech website (Go to www.atterotech.com
and click on the log-in option). The firmware files have an extension .DNT (otherwise known as “donut” files) and there is
one for each control interface type.
2.4.1 –Using the Command interface
In order to make use of the control interface, regardless of type, the unD6IO and the controlling device need to be on the
same physical subnet and need to have IP addresses in the same range. The control devices should then be able to
converse with the unD6IO without any further configuration necessary.
If control device is on a separate network to keep the Dante traffic separate, remote control of the unD6IO can still be
achieved by using Attero Tech’s CommandHub product (see the Attero Tech website for more details).

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3 –ARCHITECTS & ENGINEERING SPECIFICATION
3.1 –unD6IO A&E Specifications
The Dante 2-gang wall plate interface unit shall provide two front panel mounted mic/line analog inputs on XLR. Selectable
gains of -18dB, -3dB, +25dB, and +40dB and a +48V phantom power option shall be provided via software for each
balanced mic/line input. These mic/line inputs are digitized and introduced to the Dante audio network as transmit
channels 1 and 2.
The device shall also provide two sets of unbalanced line level input connections: one on a set of RCA connectors, the
other using a stereo 3.5mm TRS connection. These inputs are selectable for independent or summed operation via
software and introduced to the Dante interface on Dante transmit channels 3 and 4. The internal analog to digital signal
conversion shall be performed at 24-bit resolution with a sampling frequency of 48 kHz.
The Dante interface unit shall provide two balanced analog inputs on the side of the in-wall enclosure via a 6-pin
depluggable Phoenix-style connector for analog conversion of up to 2 Dante digital audio network channels. Additionally,
the two received Dante output channels shall also be converted and output on a front panel mounted 3.5mm stereo TRS
connector. The internal digital to analog signal conversion shall be performed at 24-bit resolution with a sampling
frequency of 48 kHz.
The Dante interface unit shall receive power over the Ethernet cable from an IEEE 802.3af PoE compliant network switch
or midspan injector.
The Dante interface shall be compliant with the RoHS, WEEE and REACH directives. The Dante interface unit shall be
Compliant with the EMI/EMC requirements for FCC and CE.
The Dante interface unit shall be the Attero Tech unD6IO.

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3.2 –Device Specifications
Audio Inputs
Input Types:
Two Balanced and RF filtered
inputs on XLR (Inputs 1/2)
Stereo Unbalanced Inputs on
RCA (Inputs 3/4 A)
Stereo Unbalanced Inputs on
3.5mm TRS (Inputs 3/4 B)
Gain:
-18dB, -3dB, +25dB and
+40dB, software selectable
(Inputs 1/2)
Input
Impedance:
>1.8K Ohms at any gain
(Inputs 1/2)
>10k Ohms (Inputs 3/4 A & B)
Maximum
Input Levels:
+20dBu @ -18dB gain,
+6dBu @ - 3 dB gain,
-23dBu @ +25dB gain
-38dBu @ +40dB gain
(Inputs 1/2)
+12 dBu ( Inputs 3/4 A & B)
Phantom
Power:
+48V, software selectable
(Inputs 1/2 only)
Audio Input Performance
EIN:
-115 dBu (Mic Inputs 1/2)
THD+N:
< 0.02% @ 1kHz for all gain
settings, input signal 3dB
below maximum.
(Mic Inputs 1/2)
<0.01% (Line Inputs 3/4)
Frequency
Response:
20Hz –20kHz, +/- 1dB
(-18 and –3 dB gain on Inputs
½)
50Hz –20kHz +/- 1dB
(+25dB and +40dB gain on
Inputs ½)
20Hz –20kHz, +/- 1dB
(Inputs ¾ A & B)
Audio Outputs
Output Type:
Two balanced line level with
automatic muting on loss of
Dante signal on 6-pin
Depluggable Phoenix
(Outputs ½ B)
Two unbalanced line level
outputs on stereo 3.5mm TRS
(Outputs ½ A)
Attenuation
Range:
Software controlled volume
(0 to -60dB, 1dB increments)
Output
Impedance:
200 Ohms balanced,
100 Ohms unbalanced
Maximum
Output Levels:
+12 dBu at 0dB attenuation
(Output 1/2 A)
+20dBu at 0dB attenuation
(Output 1/2 B)
Audio Output Performance
Dynamic
Range:
>97 dB
THD+N:
<0.01% @ 1kHz, input signal 3dB
below maximum
Frequency
Response
20Hz –20kHz, +/- 1dB
(-18dB and - 3dB gain)
50Hz - 20kHz +/- 1dB
(+25 and +40 dB gain)

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Dante Network
Physical Level:
Standard Ethernet
Connector:
Single RJ-45
Cable Quality:
CAT-5e or better
Transmission
Speed:
100 Mbps
Supported Sample
Rates
44.1kHz
48kHz
Minimum Dante
Network Latency
1ms
Power Requirements
PoE
802.3af PoE PD
compliant
Power
Consumption
5.5W Max
Cable Quality:
CAT-5e or better
Physical Dimensions
Width
3.54"
Height
4.2"
Depth
2"
Weight
0.6 lbs.
Product Compliance
FCC CFR 47 Parts 15B Class A
ICES-003
CE (EN55022)
RoHS
REACH

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APPENDIX A –Reference Documents
The following table lists the relevant reference documents.
Document Title
Location
unIFY 3rd Party Software API
Registered users area on website
Dante Firmware Update Quick Start
Registered users area on website

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Document Information
Document title:
unD6IO
Document file name:
unD6IO User manual.docx
Revision number:
<02_b>
Issued by:
Attero Tech
Issue Date:
10/16/2017
Status:
Released
Revision History
Revision
Date
Author
Description of change
01_a
3/11/2016
JDA
Initial Draft
01_b
5/13/2016
JDA
Revisions from first review.
01_c
5/13/2016
CNL
Changes after Review
02
05/13/16
CNL
Release Version 02
02_a
07/17/17
CNL
Added Factory reset function information
02_b
10/16/17
CNL
Bug 3479 –Update manual regarding UTP/STP cable
Removed Note from factory reset
02_c
03/14/17
SGG
Warranty Updated