Digital Acoustics ii3-ESS User manual

ii3-ESS
IP Speaker System
Users’ Guide

ESS User Manual
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ESS User Manual
i
Table of ontents
Overview ................................................................................. 1
Specifications........................................................................... 2
25/70 Volt Lines ....................................................................... 3
Speaker onfigurations ............................................................. 5
8 Ohm Speaker(s) ................................................................. 5
25/70V Speaker(s) with optional 25/70V transformer ................. 7
onnections and ontrols .......................................................... 8
Speaker onnection ............................................................... 8
Power Supply / Amplifier ........................................................ 8
Network................................................................................ 9
LED Indicators....................................................................... 9
Volume ontrols .................................................................... 9
Software onfiguration.............................................................10
Physical Dimensions.................................................................11
Software Support ....................................................................12
Recommended Power Supply for Max (High) Power modes ...........12
Troubleshooting ......................................................................13
Technical Support ....................................................................13

1
Overview
The Digital Acoustics’ ESS IP Speaker System is designed to drive an 8
Ohm speaker load or speakers attached to a 25/70V distribution line
(requires optional 25/70V Transformer). Software support is provided
by Digital Acoustics’ TalkMaster LE™, TalkMaster EE™ or by and 3
rd
parties supporting Digital Acoustics® technology.
Features
• IP Addressable
• Lossless audio distribution to endpoint
• Operates over LAN, WAN and Wireless networks
• Powered via PoE or external power supply
• Operates over wide power supply range
• Built in thermal protection
• Volume control via software or onboard controls
• Drives one or several speakers
• Wide selection of speaker configurations including:
o Horns
o Weatherproof
o eiling panels
o Wall panels
o Vandal proof

2
Specifications
Hardware Protocols T P, UDP, DH P, ARP
Network Interface 10/100 Base-T Ethernet (Auto
detection)
ommand protocols Digital Acoustics ® Proprietary
Network Bandwidth
Utilization 64 khz
Audio Resolution P M 8bit and uLAW 8bit
Frequency Response 300-4 kHz (Voice band)
Power over Ethernet* (PoE 802.3af
compatible). Requires maximum
15.4 Watts from PSE
Power Supply - Low Amp
Mode
14-20 VD @ 20 Watts
Low Amp Mode Power Output 8 Watts Nominal 3%THD
24V-28V A @ 40 Watts
Power Supply - High Amp
Mode 24V-36V D @ 40 Watt
High Amp Mode Power
Output
18 Watts Nominal 3%THD
20 Watts/8Ω 20% THD
Load Impedance 8 Ohms nominal. Limiting range 4-
16 Ohms
Temperature 0' ~ 70' (Operating), -40~85'
(Storage)
Humidity 10~90%
Dimensions 5.0” x 3.5” x 1.5”

3
25/70 Volt Lines
The ii3-ESS can be ordered with an optional 25/70V audio transformer.
The optional audio transformer allows the ii3-ESS to driver one or
more speakers attached to a 25/70V distribution line. All speakers
must have their own 25/70V transformer. This allows the ESS to be
located further away (up to 3000 feet with 18 gauge wire) from the
speaker(s) and allows an individual speaker’s volume to be adjusted
using its transformer taps. When using an ESS with a 25/70V
transformer, speakers must always be wire in parallel.
Here is the layout of the taps on a typical transformer

4
To use the optional transformer:
• onnect the transformer to the mounting holes on the top of the
ii3-ESS using the included screws (#6-32 x 3/16)
• onnect the transformer leads marked Sec Black and 8 Ohm to
the included terminal block plug and connect it into to the
Speaker terminal on the ii3-ESS
• Determine if you will be tapping your speakers for 25V or 70V:
o For a 25V distribution line and speakers, use wire nuts to
connect the Re 25V 10W tap and the lead marked Pri om
to the speakers
o For a 70V distribution line and speakers, user wire nuts to
connect the Blue 70V 10W tap and the lead marked Pri om
to the speakers
• Snip off any exposed wires on the unused taps and tie them
back
70V 10W Setup

5
Speaker Configurations
The ii3-ESS is designed to drive an 8 Ohm load or speakers attached
to a 25/70V distribution line (requires optional 25/70V Transformer).
One or more speakers can be driven by a single ii3-ESS. If more that
one speaker is connected to an ii3-ESS, all speakers will sound when
audio is sent to that ESS.
Below are the guidelines for attaching 8 Ohm speakers to the ii3-ESS:
8 Ohm Speaker(s)
The following configurations are supported for driving 8 Ohm
speakers:
• A single 8 Ohm speaker
• Two 8 Ohm speakers wired in series

6
• Four 8 Ohm speakers wired in series-parallel
Please note the following guidelines:
• Speakers should be installed within 100 feet (30 meters) of the
ESS using 18 gauge wire
• The total amount of wire used in the wiring run should not
exceed 200 feet (60 meters)
• The total watts available from the ESS are distributed equally
among the speakers.

7
25/70V Speaker(s) with optional 25/70V transformer
The ESS can drive one or more 25/70V Speakers or Horns when
equipped with an optional 25/70V transformer. When using 25/70V
transformers, all speakers must be wired in parallel.
Please note the following guidelines:
• Each speaker must have its own 25/70V transformer
• Speakers should be installed within 1500 feet (450 meters) of
the ESS using 18 gauge wire
• The total wattage available from the ESS must be reduced by
20% to account for line loss
• The total wattage of the selected speaker taps cannot exceed the
wattage available from the ESS (7.5 watts for PoE, 20 watts for
external power)
• Maintain the same wiring polarity between speakers

8
Connections and Controls
Speaker Connection
To connect an 8 Ohm load to the ii3-ESS, connect two wires from the
speaker terminals (or 8 Ohm load source) to one of the supplied
terminal block plugs and insert it into the Speaker connector on the
ESS. Speaker connections are polarity independent.
Power Supply / Amplifier
The ii3-ESS supports Power over Ethernet (PoE - 802.3af compatible)
or can be powered externally from an external 24V A /D 40 Watt
power supply. Note that if using PoE, that the Power Source Equipment
(PSE) must be capable of supplying the maximum of 15.4 Watts for
each ii3-ESS that is connected to it.
Two amplifier settings are available. The low setting is 7.5 watts and
the high setting is 20 watts. When using PoE, the low amplifier setting
must be used. When using an external power supply, either the high
or low setting can be used.
Before powering up the ii3-ESS, the jumpers for the Power Supply and
Amplifier must be set in the correct position. The Jumpers consist of 5
columns of 2 pins located on the side of the unit labeled as Amp
Setting.
For PoE, the jumpers must be set as follows:
• Two Horizontal jumpers on columns 1 and 2 indicate PoE
(802.3af compatible) is supplied via the RJ-45 cable
• One Vertical jumper on column 4 indicates Low Amplifier setting
For External Power and high amp setting, the jumpers are set as
follows:
• Two Horizontal Jumpers on columns 2 and 3 indicate External
power is supplied
• One Vertical jumper on column 5 indicates High Amplifier setting

9
For External Power and low amp setting, the jumpers are set as
follows:
• Two Horizontal Jumpers on columns 2 and 3 indicate External
power is supplied
• One Vertical jumper on column 4 indicates Low Amplifier setting
Network
onnect the RJ-45 connector with a AT5/5E cable to an available
10/100 Ethernet port on a network switch.
LED In icators
Ready - Indicates Server connection state
Link - Indicates network connection
Active - Indicates audio activity
Description Ready Link Active
Unit is connected to the Server Solid Solid Off
Unit is playing audio from the Server Solid Solid Flashing
Unit is trying to connect to the
Server
Slow Flash Solid Off
Unit does not have a valid network
connection
Any Off Any
Unit has been discovered by the
Intercom onfiguration Tool
Fast Flash On
Unit has not been configured to
connect to a Server
Slow Flash On On
Volume Controls
The ESS has seven volume level settings. Pressing the “Vol +” or the
“Vol -“ seven times sets the unit to its maximum or minimum volume.
To control the volume through software, refer to the documentation
included with the software product.

10
Software Configuration
Using TalkMaster LE or TalkMaster EE - Admin onsole:
• Search the network for ii3-ESS modules
• When found, configure the following parameters:
o Select Client mode
o Specify DH P or an IP address, Subnet, and Gateway
o Specify Location Name to uniquely identify the ESS
o Specify the Server IP address the ESS is to connect to
o heck the “Remote Listen Disable” option
o lick Apply to save the changes

11
Physical imensions
4.9"
3.4"
2.8" 1.5"
4.0"

12
Software Support
For use with Digital Acoustics’ TalkMaster LE or TalkMaster EE, select
the “Remote Listen Disable” option when configuring the ii3-ESS.
Refer to documentation for 3
rd
party software that supports Digital
Acoustics technology,
Recommended Power Supply for Max (High) Power
modes
lass 2 24VA @ 40 VA (40 W)
Some Examples:
MOUSER AMSE O XF-2440
MOUSER AMSE O XR-2450LED

13
Troubleshooting
Unit will not power up • Verify the Power Supply /
Amp jumpers on the unit
Unit will not connect • Verify that the LINK LED on
the unit is on solid
• Verify units IP address,
subnet mask and gateway
• Verify IP Address that the
unit is connecting to
• Verify the P that the unit is
connecting to is running the
proper software
Unit will not play audio • Verify the units Ready and
Link LEDs are on solid
• Verify the units Active LED
flashes when receiving audio
• Verify ESS - Speaker
connections
To reset the ESS onfiguration back to factory default:
• Unplug the Power
• Press and hold down the Vol + and Vol - buttons
• Plug the power back in
• Wait 2 seconds
• Release the Vol + and Vol - buttons
Technical Support
Email: [e-mail]
Telephone: [phone] M-F 8am-5pm ( entral Time Zone)

Notes

www.digitalacoustics.com
© 2006-2007 Digital Acoustics
All Rights Reserved
This document may contain advance information. Contact factory for technical specification
efore product design and/or use. Design and specifications are su ject to change without
notice.
Digital Acoustics®, ii3™ and TalkMaster™ are trademarks of Digital Acoustics Corporation, all other
marks used are properties of their respective owners. Digital Acoustics' product designs are packaged y
leading manufacturers around the world.