Lectrosonics SPNTrio Installation And Setup

SPNTrio

Digital Conference Interface

INSTALLATION and STARTUP GUIDE

Software and Hardware Installation and Setup

IMPORTANT

See page 15 for

Minimum Setup Requirements

Visit the ASPEN Support web site:

www.lectrosonics.com/aspensupport/

Also link from the home page: www.lectrosonics.com

Fill in for your records:

Serial Number:

Purchase Date:

Rio Rancho, NM, USA
www.lectrosonics.com

SPN Trio

Important Safety Instructions

This symbol, wherever it appears, alerts
you to the presence of uninsulated 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.

When using your telephone equipment, basic safety
precautions should always be followed to reduce the
risk of fire, electrick shock and injury to persons, includ­ing the following:

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) Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and third grounding prong.
The wider blade or the third prong are provided
for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of
the obsolete outlet.

10) Protect the power cord from being walked on or
pinched particularly at plugs, convenience recepta­cles, and the point where they exit from the appara­tus.

11) Only use attachments/accessories specified by
the manufacturer.

12) Use only with the cart, stand,
tripod, bracket, or table specified by
the manufacturer, or sold with the
apparatus. When a cart is used,
use caution when moving the cart/
apparatus combination to avoid
injury from tip-over.

13) Unplug this apparatus during lightning storms or
when unused for long periods of time.

14) 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.

15) WARNING -- TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPARATUS TO RAIN OR MOISTURE.

16) The AC mains plug, or appliance coupler shall
be readily available to the operator as a means of
power disconnection, if applicable.

17) Unit shall be connected to a MAINS socket outlet
with a protective earthing connection.

18) Do not use this product near water for example,
near a bathtub, washbowl, kitchen sink or laundry
tub, in a wet basement or near a swimming pool.

19) Avoid using a telephone (other than a cordless
type) during an electrical storm. There may be a
remote risk of electric shock from lightning.

20) Do not use the telephone to report a gas leak in
the vicinity of the leak.

21) Use only the power cord and batteries indicated
in this manual. Do not dispose of batteries in a fire.
They may explode. Check with local codes for pos­sible special disposal instructions.

22) “CAUTION: To reduce the risk of fire, use only No.
26 AWG or larger (e.g., 24 AWG) UL Listed or CSA
Certified Telecommunication Line Cord”

SAVE THESE INSTRUCTIONS

Inspection of the Unit

Compare the packing list enclosed with the unit with the
original order. Inspect all items for damage. Immediately
call 1-800-821-1121 to report any items that are miss­ing or damaged. The sooner you notify us, the sooner
you will get any needed replacement items shipped to
your location.

2

LECTROSONICS, INC.

Installation and Startup Guide

Table of Contents

Important Safety Instructions................................................................................................................................................................2

Inspection of the Unit .............................................................................................................................................................................2

Introduction .............................................................................................................................................................................................4

Front Panel ..............................................................................................................................................................................................5

Rear Panel ...............................................................................................................................................................................................6

Hardware Installation .............................................................................................................................................................................7

Installing the chassis into a rack ...........................................................................................................................................................7

Cables ..................................................................................................................................................................................................7

Audio Connectors ................................................................................................................................................................................7

Audio Inputs – Unbalanced ...................................................................................................................................................................7

Audio Outputs .......................................................................................................................................................................................8

Programmable Inputs ............................................................................................................................................................................8

Programmable Outputs .........................................................................................................................................................................8

Power Amp Outputs .............................................................................................................................................................................. 8

ASPEN RS-232 Port .............................................................................................................................................................................9

Cabling Of Stacked Units ......................................................................................................................................................................9

Creating an ASPEN Installation Disk ..................................................................................................................................................10

USB Driver Installation .........................................................................................................................................................................11

Software Installation ............................................................................................................................................................................12

Software and

Firmware Updates .........................................................................................................................................................................13

Firmware Update Procedure ................................................................................................................................................................13

Connecting to a Unit ............................................................................................................................................................................14

Navigating the Control Panel ...............................................................................................................................................................14

Minimum Setup Requirements ............................................................................................................................................................15

Saving Settings .....................................................................................................................................................................................19

Additional Adjustments .......................................................................................................................................................................19

Stacking Multiple Units ........................................................................................................................................................................19

Refer to the Help Files ..........................................................................................................................................................................19

Using the LCD .......................................................................................................................................................................................20

Browser Interface .................................................................................................................................................................................24

Multi-site Bridging Setup .....................................................................................................................................................................25

AEC Reference Mix ............................................................................................................................................................................25

AEC Signal Mix ...................................................................................................................................................................................26

Enable the AEC and Define the Inputs ...............................................................................................................................................26

SEND Mixes ........................................................................................................................................................................................27

............................................................................................................................................................................................................27

LOCAL Mixes ......................................................................................................................................................................................28

The Finished Setup .............................................................................................................................................................................29

FCC Part 68 Compliance ......................................................................................................................................................................31

FCC Part 15 Compliance ......................................................................................................................................................................31

Service and Repair ...............................................................................................................................................................................33

Returning Units for Repair ..................................................................................................................................................................33

Rio Rancho, NM

3

SPN Trio

Introduction

The SPNTrio combines the circuit board assemblies
from the SPN812 and SPNConference in a 2RU chas­sis to provide a complete, stand-alone component for
telepresence and audio conferencing systems. The unit
can also be used with additional ASPEN processors
to add additional inputs and outputs. Setup and adjust­ments can be made using the control panel software or
the front panel LCD interface. Inputs and outputs ap­pearing on the LCD have been consolidated into logical
groups to simplify navigation.

The far end audio signals in a conference participate in
the automatic mixing algorithm in same manner as local
microphones connected to the processor. Three sites
connected via two codecs and a telephone line can be
bridged into a single conference with the local site.

The ASPEN S-AEC acoustic echo canceller (US Pat­ent Pending) was developed to address the need for
a single acoustic echo canceller that could handle the
challenges of multi-site bridging and an unlimited num­ber of microphones. The AEC converges very quickly,
then continues to increase the cancellation depth at ev­ery opportunity as a conference continues. Cancellation
depth will increase even with brief signal peaks from
the far end, and convergence will never be lost with any
type of signal or in double talk situations.

Signals from the far ends of the conference are routed
to the local sound system as well as serving as the
reference signal for the AEC. Audio from the local mi­crophones (which includes far end audio from the local
loudspeakers) is routed to the AEC via a second final
mix. Far end audio present in the microphone signal mix
is cancelled, and the output of the AEC is routed back
to the far ends through the matrix.

The AEC in combination with the patented gain pro­portional mixing algorithm* provides outstanding audio
quality without echo heard at the far ends.

The noise reduction filter used in ASPEN processors is
a proprietary process which is very effective in deal­ing with noisy connections in the far end Codec and
telephone line signals. Using dynamic, third octave
filters, voice is emphasized and noise is suppressed to
improve intelligibility during a conversation.

An ethernet port is provided for setup and control via
standard network connections, and an RS-232 port is
provided for use with remote control systems. The de­sign allows simultaneous, multi-point third party control.

A two channel power amplifier is included for loud­speakers in the local sound system. The power amplifier
is driven by final mix outputs from the matrix and has a
full set of signal processing, including parametric EQ,
compressor and limiter. Class-D amplification is imple­mented with a late generation component that provides
exceptional efficiency, low heat, excellent audio perfor­mance and cannot be damaged by wiring errors.

Visit the ASPEN Support web site:

www.gnarlywireless.com/AspenSupport/

Also link from the home page: www.lectrosonics.com

4

LECTROSONICS, INC.

Front Panel

The SPNTrio includes a front panel LCD and rotary
style navigation control for adjustment without the need
for a computer interface. The headphone output is used
to monitor each final mix for diagnostics and system
checkout.

Installation and Startup Guide

Blue LEDs on the right side of the front panel indicate
power status and communications through USB, serial
and ethernet ports. The center white LED blinks to indi­cate an error, and glows during firmware updates.

LCD

Navigation/Select

Headphone Monitor

Headphone Monitor

Used to monitor individual final mix buses as selected
on the LCD. Standard 1/4 inch jack and level control.
Drives both channels of stereo headphones.

LCD

Allows setup and adjustment of most operating param­eters and for minor adjustments without a computer
interface.

Navigation/Select Control

Used to navigate menus and make value selections and
settings on the LCD.

Control

USB Port

Comm LED

Alert LED

POWER Switch

Power LED

USB Port

Standard USB connector for the setup and control of
an SPNTrio from a Windows® XP, Vista or 7 computer
system* with USB interface.

Status LEDs

Comm LED - blinks to indicate USB, RS-232 and ether­net communication

Alert LED - blinks to indicate fault or error, glows white
during firmware updates

Power LED - glows to indicate power ON

*Windows is a registered trademark of Microsoft Corp.

Rio Rancho, NM

5

SPN Trio

Rear Panel

Cooling Fan

Outlet

SPN Trio

DATECODE

S/N LABEL

100-240V

50/60Hz 50W

Adaptive Proportional Gain Mixing
US Patent 5,414,776

Power Inlet RS232

RS-232

Serial Port

Programmable Input

and Output Ports

PROG IN

PROG IN

ETHERNET

Ethernet

Port

GND

+5V

PROG
OUT

GND

+5V

PROG
OUT

Data/Audio

Bus Ports

Power Inlet

The switching power supply will operate with line volt­ages between 100 and 240 VAC. The inlet socket is a
standard 3-pin C14 type that accepts any cordset with a
C13 connector.

Cooling Fan

The microprocessor monitors the internal temperature
of the processor and controls the variable speed fan as
needed. Operating temperature is very well regulated.

RS-232 and Ethernet Ports

Each host assembly provides RS-232 and Ethernet
ports for communication with the microprocessor. The
ports can be utilized simultaneously for monitoring,
setup and control.

ASPEN Ports

This gigabit bus transports audio and data from one
board to the next through CAT-6 cabling and RJ-45 con­nectors. Processors are normally installed with the Mas­ter unit on top and Slave units below it. The cabling is
then connected from the uppermost jack on one board
to the lowermost jack on the unit just above it. See page
9 for more information.

Balanced Mic/Line Inputs

Every mic/line input is a balanced, differential type with
adjustable gain from -10 to +60 dB. Connectors are a
standard 5-pin Phoenix depluggable type with adjacent
channels sharing a common ground.

ASPEN PORTS

Balanced Inputs

Made in the USA

LINE

LINE

INPUTS

OUTPUTS

1

CODEC

CODEC

CODEC

2

1

2

Line Outputs

(Codecs)

INPUTS

TELEPHONE

SET

Line Inputs

(Codecs)

Made In the USA

LINE

Telephone

Set/Line

Remote
Control

Balanced Outputs

OUTPUTS

POWER AMP

RC 2

OUTPUTS

REMOTE

1

CONTROL

RC 1

2

Power Amp

Outputs

CODEC

Balanced Outputs

All outputs are a balanced, differential type. Channels 1
through 8 on each board are nominal line level outputs
with gain adjustment from -60 to +20 dB. Channels 9
through 12 on each board are also line level outputs
with switchable attenuation of -20 and -40 dBu nominal
levels (mic level), with gain adjustment from OFF to +20
dB.

Programmable Input and Output Ports

Programmable inputs and outputs used to control
levels, settings, indicate the current state of a program­mable input and control a variety of other parameters.

ASPEN Bus Data/Audio Ports

These RJ-45 jacks carry the audio signals and con­trol data between each system board as well as units
stacked together.

Remote Control

These RJ-45 jacks provide interfaces for RCWTH4
remote control units. Each jack is assignable to CODEC
1 or 2, or to the telephone line.

Conferencing Inputs and Outputs (Codecs)

Analog audio input and output connectors for the Codec
ports.

Telephone Set/Line

RJ11 jacks for connecting a standard telephone line
and a single-line telephone set.

6

Power Amp Outputs

The amplifier is designed to run continuously (idle or
with a load) without heat buildup, making it ideal for
permanent installations where prolonged operation is
required.

LECTROSONICS, INC.

Processor

Balanced source to

ASPEN input

Source

Shield

Hardware Installation

Installation and Startup Guide

Installing the chassis into a rack

Install the chassis so that the cooling fan vent is not
blocked. Mount with 4 rack screws using the appropri­ate mounting holes. Use nylon washers to prevent
damage to the front panel’s finish when tightening the
mounting screws.

All ASPEN processors have internal switching power
supplies that can tolerate voltages ranging from 100
to 240 VAC. Use an approved power cord with an IEC
60320 C13 connector.

Cables

It is recommended to use lacing bars for cable strain
relief when mounting in a rack. Use only professional
audio cable with proper shielding – typically, two con­ductor plus ground/shield.

Audio Connectors

The analog audio inputs and outputs are connected
through 5 pin de-pluggable connectors. Strip the insula­tion back 1/8 to 3/16” but do not tin (apply solder to)
the leads. Insert the wire into a de-pluggable connec­tor, leaving less than 1 mm of bare wire exposed, then
tighten the retaining screw.

Audio Inputs – Unbalanced

Unbalanced audio sources include items such as
consumer VCR’s, DVD players, etc., which can be con­nected with either two wire or three wire cables. The (+)
terminal of the source is connected to the (+) terminal
of the processor. The shield and (–) connections are
made as shown here.

Three wire cables should have the shield connected to
the (–) connector at the source end of the cable.

Source

Unbalanced source to

ASPEN input – 3-wire cable

Two wire cables should have a jumper between the
processor (–) input and ground.

Shield

Processor

Caution: Do not overtighten the screws.

Retaining Screw

(Do not overtighten)

5-pin depluggable

connector

Do not leave more than

1 mm of exposed wire
beyond the connector.

Do not apply

solder to leads

Note the labeling on the rear panel for the positive and
negative leads. Ground is shared between two connec­tions (the center pin).

Note: ASPEN processors do not have a “pin 1
problem.” Inputs and outputs are true differential
connections.

Source

Shield

Processor

Unbalanced source to

ASPEN input – 2-wire cable

Audio Inputs – Balanced

Balanced audio sources connect to the processor in­puts in a straight “pin to pin” configuration.

Rio Rancho, NM

7

SPN Trio

10K Linear Potentiometer

CCW

CW

+5V
To Programmable Input Pin

Gnd

Contact Closure as Programmable Input

To Programmable Input Pin

Gnd

DC Voltage Source as Programmable Input

To Programmable Input Pin

0VDC (Off) to +5VDC (On)

Gnd

Potentiometer Connection for

Analog Control of Gain

+

Audio Outputs

The line outputs are a balanced differential configura­tion which can drive balanced or unbalanced inputs on
other audio equipment with the wiring shown here.

Balanced output to a balanced input is a straightforward
“pin to pin” configuration.

Shield

Output

Destination

Balanced output to

balanced destination

Balanced output to unbalanced input with a 3-wire
cable is connected with the cable shield added to the
(–) terminal on the destination input.

Shield

Output

Destination

Balanced output to unbalanced

destination – 3-wire cable

Balanced output to unbalanced input with a 2-wire cable
is connected with the output (–) connected to the cable
shield at the processor output.

Programmable Inputs

Programmable inputs are provided to enable external
control over a variety of parameters. Each input can
respond to a contact closure, a DC voltage source, or
the variable voltage output from a potentiometer. The
following illustrates common connections to the pro­grammable input pins.

Programmable

Inputs

Programmable

Outputs

Ground

+5VDC

Output

Shield

Balanced output to unbalanced

destination – 2-wire cable

Power Amp Outputs

Each output can drive a
variety of loads, including
loudspeakers, long cable
runs and headphones.
The BTL (bridge tied load)

configuration allows the
two channels to be wired
in parallel on a common
load to double the output
power.

8

-

+

Destination

Programmable Outputs

Programmable outputs are used for several purposes:

• indicatethecurrentstateofaprogrammableinput

• monitoractivityontelephoneorcodecinterfaces

• monitoractivepresetchanges

Each programmable output is the electrical equivalent
of a contact closure to ground. When a programmable
output is “active,” it conducts current to ground. When
the programmable output is “inactive,” no current flows
to ground. The maximum usable voltage for the pro­grammable outputs is 40 V and they will safely conduct
up to 100 mA DC continuous.

Both LEDs and 5V relay coils can be powered by the
+5 V DC pins on the programmable input connector, as
long as the maximum combined current for all LEDS
and relay coils does not exceed 100 mA.

LECTROSONICS, INC.

380 Ohms

Pro gr amma b le Output Pi n

380 Ohms

Programmable Output Pin

1N4001
or equi v .

Exte r na l
DC V oltag e
Source
(<40VDC)

Rel a y Coi l

Coil current <100mA

Pro gr amma b le Output Pi n

Relay is on when the programmable output is active

+5VDC

+5VDC

GND

LED is ON when the programmable output is active

GND

LED is OFF when the programmable output is active

Note: The diagram above shows an external DC source pow-

LED

380 TO

500 OHM

10K
LINEAR
POT

CW

CCW

IN 1

IN 3

ON

OFF

LOGIC OUTPUTS

GROUND
5VDC

LOGIC INPUTS

LOGIC
OUT 7

LOGIC IN 3

ANODE CATHODE

V

R

Anode

Cathode

CathodeAnode

ering the relay coil. This is necessary whenever coil voltages
exceed 5 volts.

Installation and Startup Guide

Cabling Of Stacked Units

In a stacked configuration, ASPEN processors must
be interconnected as shown here. Each Slave unit in
a stack gathers data and audio signals from the unit
below it, adds its own signals and passes the total on to
the unit above it. At the top of the stack, the Master unit
gathers all signals from below, adds its own and then
sends the total back down the bus to all Slave units
below it. In this manner, all Slave units have access to
all inputs on any unit in the stack.

Each circuit board has an upper and a lower CAT-5 con­nector. Since there are two circuit boards in a 2RU unit,
the circuit boards are connected in the same manner as
if they were in separate chassis. The ASPEN bus is bi­directional, handling data and audio signal forward and
back propagation through a single cable connection.

1RU SPN

Processor

configured as

Master

ASPEN PORT

ASPEN RS-232 Port

Here is the wiring diagram for the ASPEN RS-232 Port
for connecting to a PC.

Wiring Diagram

ASPEN Device to PC

1
2

TX

3

ASPEN
RS-232

Port

DCE pin
functions

Female

jack

Rio Rancho, NM

RX

GND

connector

4
5
6
7
8
9

Male

1
2
3
4
5
6
7
8
9

Female

connector

DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI

2RU SPN

Processor

configured as

intermediate

Slave

1RU SPN

Processor

configured

as lowermost

Slave

The processors automatically configure themselves for
Master and Slave status as determined by the cabling.
If a unit is connected to another unit above it through
the upper connector, it is automatically configured as
a Slave. If there is no unit above it, then it becomes a
Master.

Host

Serial

Port

(PC)

DTE pin

functions

Male jack

9

SPN Trio

Creating an ASPEN
Installation Disk

The easiest way to install the control panel software and
perform firmware updates is using the Installation Disk.
If you do not have the disk supplied with the processor,
go to either of the following web sites and download the
ASPEN Installation Disk .iso file.

http://www.lectrosonics.com/aspensupport/

Link from the home page: www.lectrosonics.com

Save the file to your local drive in a familiar location.
Open a disk copier utility such as Roxio Classic and
select the operation to Burn from a Disk Image File.

NOTE: The .iso file cannot be simply copied to the

disk. The disk recording utility must run a process

that creates a disk from a stored image file.

The .iso file format is recognized by almost any disk
creation software.

10

LECTROSONICS, INC.

USB Driver Installation

The ASPEN USB drivers are installed from the ASPEN
Installation Disk which comes with each device, by run­ning the ASPEN Device Installer. Normally this is done
before connecting an ASPEN device to the PC for the
first time, but it can be done afterwards if necessary.
The driver installation only needs to be done once on
each PC that will be connected to an ASPEN unit.

If an ASPEN device is connected to a PC without prior
installation of the drivers from the ASPEN Installation
Disk, manual installation is possible for Windows XP
and Vista operating systems using the New Hardware
Found wizard. In the case of Windows 7, there is no
New Hardware Found wizard, so manual installation is
a bit more involved. In any of these cases it’s not really
necessary if you have the installation disk. Just cancel
the New Hardware Found wizard (if open) and run the
ASPEN Device Installer from the Installation Disk.

Installation with ASPEN Device Installer

Place the ASPEN Installation Disk into the CD-ROM
drive. If “AutoRun” is enabled on that drive then the
ASPEN Installation Disk utility will open.

Installation and Startup Guide

Click Next to proceed.

The End User License Agreement is presented.

Note: If AutoRun is not enabled then use Start->Run to
run “autoRun.exe” on the drive holding the ASPEN In­stall Disk. For example, if the CD-ROM drive is drive E:
then run “E:\autoRun.exe” to open the ASPEN Software
CD utility.

Click on the appropriate driver for your system:

• InstallUSBDrivers(32-bit)

• InstallUSBDrivers(64-bit)

The ASPEN Device Installer opens.

Accept, then click Next to proceed. The drivers are
installed from the CD.

When installation is complete, the Driver Name and
Status are displayed. Click Finish to close the Device
Installer.

Rio Rancho, NM

Click Close to finish. You may now connect to the AS­PEN device via USB.

11

SPN Trio

Software Installation

NOTE: Uninstall previous version before installing

the software.

The example shown here illustrates the installation pro­cedure using Windows XP. The screens that appear at
each step using another operating system will vary, but
the general steps are very similar.

Insert the disk into the drive and wait for the opening
screen to appear. Click on Install ASPEN Software to
launch the installer.

It is usually best to accept the default folder for the
installation. Click on Next to continue.

When the Welcome screen appears, click on Next.

The End User License Agreement screen appears.

Click on Next to confirm the installation and continue.

When the installation is complete the final screen will
appear. Click on Close to finish the installation.

Click on I Agree, then on Next to continue.

12

LECTROSONICS, INC.

Installation and Startup Guide

Software and
Firmware Updates

Check for the latest versions of the control panel soft­ware and to see that the hardware includes the latest
firmware.

ASPEN models with a front panel LCD will display the
firmware version on the LCD and in the control panel
GUI after the software is installed. Other models display
the firmware version in the GUI only. Firmware updates
require that the ASPEN software be installed to enable
a connection and use the update utility included in the
software.

Firmware

version

Firmware Update
Procedure

1) Install ASPEN software. See the previous page for
an example of the installation procedure.

2) Launch the software. After the panel opens, click on
File > Update. The Update Wizard screen will open
to confirm that the software is ready for a firmware
update, with instructions on connecting and config­uring the processor.

3) On the processor, hold the recessed pushbutton
switch in with a pen or paper clip and turn on the
power to the processor. The unit will boot into the
Firmware Update... mode and the white Alert LED
on the processor front panel will glow.

Recessed pushbutton for firmware updates

4) Connect the processor to the computer with the
USB cable. When the USB connection is confirmed
(typically with a beep sound on the computer),
continue by following the on screen prompts in the
Update Wizard.

5) When prompted, use the “Browse” button to point at
the firmware update file and click Next to continue.

Firmware version

Obtaining Updates

The latest versions of software and firmware are pro­vided on the disk supplied with the unit and download­able from:

http://www.gnarlywireless.com/AspenSupport/

Link on home page: http://www.lectrosonics.com

ASPEN Software: Uninstall any previous version be­fore installing an updated version.

Downloaded files arrive in a .zip format. Extract the files
to a folder on your local drive and then run “setup.exe”
to install the program.

Firmware Updates: Downloaded files arrive in a single
.zip file with the model number and version indicated by
the filename.

Extract the file to a folder on your local drive. The result­ing filename will indicate the model number and ver­sion, followed by the extension “.update.”

Rio Rancho, NM

Browse

button

6) Do not disturb the USB cable connection during the
update process. The firmware update takes up to
15 minutes to complete. Be sure the computer does
not “Time Out” during the update process.

7) When the update is complete, click Finish to exit the
Update Wizard.

8) Cycle the power on the processor to restart using
the updated firmware.

13

SPN Trio

Connecting to a Unit

Connect the processor to the computer using
whichever interface you prefer. Turn on the power and
wait for the USB port to be recognized and configured.

Launch the ASPEN software. The first screen to
appear is blank with tabs at the top of the window to
select the desired action.

Select the Connect tab and then click on the method
of communication (USB in this example). When the
popus window appears, click OK to acknowledge the
Master unit.

The Master Unit

will appear in this

popup window

The panel opens to the Activity window, which is a
real time level display for all channels. Gain and Mute/
Unmute status can also be selected in this screen.

Selected unit is

highlighted in the list

Tabs open

setup screens

Scroll to

additional tabs

The left side of the control panel will appear with a list
of processors that are connected. Click on a unit in
the list to open its control panel. The processors will
appear in the same order that they are cabled together.

Click on the desired

unit in the list

Tab opens device list

Device information

across bottom of screen

Navigating the Control
Panel

The control panel GUI is arranged in a tabbed format
that allows immediate access to all setup screens.
Tabs are located in various locations to access setup
screens. Scroll buttons allow access to additional tabs.

Setup tabs

Scroll to additional tabs

14

Device settings tab

Scroll to additional tabs

NOTE: Right click in the setup area for a Quick
Select pull down list of available setup tabs

Secondary
setup tabs

LECTROSONICS, INC.

Installation and Startup Guide

Minimum Setup
Requirements

Since the SPNTrio contains an 8x12 mixer and a
conference interface, setup is similar to configuring
two separate processors. The following settings are
the minimum necessary to allow the mixer to pass
signals and to create the signal paths needed for the
conference interface to function.

STEP 1 - Inputs Tab (Mic/Line Inputs)

• Adjustgainonmic/lineinputsinuse

• SetphantompowerONifneeded

• Invertpolarity(phase)ifneeded

• SelectMute/Unmute

Adjust Gain using the slider

Inputs Tab

or enter the value directly

STEP 2 - Inputs Tab (Conferencing Inputs)

• Adjustgainoninputsinuse

• Invertpolarity(phase)ifneeded

• SelectMute/Unmute

Adjust Gain using
the slider or enter

the value directly Inputs tab

Invert polarity (phase) if needed

and select Mute/Unmute

Conferencing tab

Select Phantom Power,

Polarity (phase) and
Mute/Unmute status

Mic/Line Tab

STEP 3 - Matrix Tab

This step defines the mixes that will be used to
provide the source signals for the local sound system,
conferencing outputs and AEC.

• Setgainatcrosspointsforlocalsoundsystem

(and monitors if used - see note)

• SetgainatcrosspointsforAECSignalMix

• SetgainatcrosspointsforTEL,COD1,COD2

• SetgainatcrosspointsforAECReferenceMix

Define the Local Mixes to route the microphone and
line inputs to loudspeakers and local monitors.

Matrix tabMic/Line inputs tab

Crosspoints for

local monitors

Rio Rancho, NM

Mix bus selection Set gain at crosspoints to route local

microphones to local sound system

15

SPN Trio

NOTE: In this example, Mix Bus 7 is used to
create a feed to local monitor speakers (as might
be used in an adjacent control room) powered by
the built-in amplifier in the SPNTrio. The power
amp outputs could just as well be used to power
loudspeakers in the conference room.

Crosspoints in the Local Mixes for room loudspeakers
can be configured using the Phantom Mode as shown
below. In this mode the audio is not actually routed
to the output, but the auto-mixing data from the mic
is applied to the auto-mix bus as if it was. This allows
that microphone to contribute to the mixing activity in
zones where it is not being sent. The result is more
transparent and effective auto-mixing throughout the
entire room.

Mic/Line Inputs tab

Matrix tab

The AEC Signal Mix routes the local microphone
signals to the input of the acoustic echo canceller
as shown in the example below. Mix Bus 47 is used
to create these mixes to keep them visually well
separated from the buses used for the Local Mixes.

Matrix tabMic/Line inputs

Mix bus selection

Set the gain on the crosspoints used

to create the AEC Signal Mixes that

will be routed to the AEC input.

Mix Bus selection

Right click on the mix-minus

crosspoints and set the Crosspoint

Mix Mode to Phantom

Far end connections are routed through the matrix to
feed the local loudspeaker system.

Far end receive signals can also be routed in a mix
minus configuration for multi-screen telepresence
systems to direct the audio to the appropriate screens.

Far end connections are routed

through the matrix to feed the

local loudspeakers

Several mixes are needed to establish the signal
routing for conferencing. In this example, all three
far end connections are used to enable multi-site
conferencing. It is suggested that you use Mix Buses
44, 45, 46 for the far end Send Mixes and AEC output,
and Mix Bus 48 for the AEC Reference Mix so that
they are visually well separated from the local PA
mixes.

Conferencing Inputs tab

Mix bus selection

Send Mixes

AEC Output

Matrix tab

AEC Reference Mix

16

LECTROSONICS, INC.

Installation and Startup Guide

Send Mixes: Each far end signal is routed to the
opposite far ends, but not back to itself (mix-minus).

AEC output: Contains the local microphone signals
after the echo cancellation is applied, which is sent to
the far ends along with the far end signals.

AEC Reference Mix: The far end signals are routed
to the input of the AEC to enable acoustic echo
cancellation.

For a Single Far End Connection

When a single far end connection is all that is needed,
one crosspoint provides the AEC Reference and
another is used to route the AEC Output to the far end.

AEC Reference

(far end receive)

AEC Output

(to be sent to far end)

Outputs 1-12

Output Source tab

Select Mix buses to

feed each output

Output Source tab

STEP 4 - Output Source Tab

Once the matrix crosspoints are defined, the next step
is to assign the mixes that will be used for each output
on the processor.

• Selectsourcesforthelocalsoundsystem(and

monitors if used)

• SelectsourcesfortheAECSignalandReference

Mixes

• SelectsourcesforTEL,COD1,COD2

Select the Mix Bus to feed each output being used for
the local sound system loudspeakers as defined in
STEP 3.

Select Mix Buses to feed

the built-in power amplifier

Power Amp Outputs

Select the Mix Bus for the AEC Signal Mix as defined
in STEP 3.

Scroll tabsConferencing tab

Enable AEC and select

Final Mix Buses for Signal

and Reference Mixes

Rio Rancho, NM

Acoustic Echo Canceller tab

17

SPN Trio

Select sources for far end conference mixes as defined
in STEP 3.

Output Source tab

Select Mix Buses for

far end connections

Conferencing Outputs

Scroll tabs

STEP 5 - Outputs Tab

Navigate to each Output tab at the lower part of the
screen and adjust levels as needed.

Scroll tabsOutputs tab

STEP 6 - Conferencing Tab

Configure the Telephone, Codec 1 and Codec 2
interfaces with the setup screens for each one.

Conferencing tab

Select tabs for Telephone,

Codec 1, Codec 2 and configure

the interfaces as needed

Scroll tabs

Select tabs to access level setup

screens for all outputs in use

18

LECTROSONICS, INC.

Installation and Startup Guide

Saving Settings

Saving to a Preset

Settings must be saved to a preset in the processor to
be available for normal operation.

Preset Management tab

Select a Preset to store settings

and click Store to load the settings

into the processor memory

Device Settings tab

Saving to a Disk for Backup

Settings can easily be copied to a disk file as a backup
with the File tab and popup window.

File tab

Select “Save Settings As...”

Stacking Multiple Units

If Slave units are not powered up when the Master unit
boots up, the Slave may not be detected for several
minutes. It is good practice to turn all units on simul­taneously or turn on Slave units before turning on the
Master unit.

The available processors will appear in a “stack” on the
left side of the control panel. The Master unit will appear
at the top of the stack, with Slave units below it appear­ing in the order that they are connected through the
ASPEN port jacks.

List of connected units

Refer to the cabling diagram for the ASPEN ports in the
section entitled Hardware Installation.

Check the LCD display on the Master unit to see if it
has detected all the Slaves.

Select folder and filename

in the popup window

Additional Adjustments

After the minimum required settings are configured, and
saved, the processor will pass signals. Fine adjustments
to levels, filters, limiters and compressors can then be
made to complete the setup for all inputs, crosspoints
and outputs. Be sure to save the settings again after the
fine adjustments have been made.

The LCD will

show the mode,

the position and

total number

of units in the

stack.

Shown here is

the Master as

unit 1 of 2.

The Master unit will always be number one in the stack
as shown here, and each slave will be numbered in the
order that it is connected with the cabling of the ASPEN
port jacks.

Refer to the Help Files

Once the processors are installed, configured and com­municating with a computer system, refer to the Help
files in the software GUI for additional information re­garding the available settings, adjustments and control.

Rio Rancho, NM

19

SPN Trio

Using the LCD

The LCD can be used to check current settings or make
adjustments without using a computer interface.

Boot Screen

Main Window

The LCD will

show the mode,

the position and

total number

of units in the

stack.

Shown here is

the Master as

unit 1 of 2.

Shortcut Buttons

• LCDBacklightToggle:Press both the LEFT and
RIGHT (9:00 and 3:00 o’clock) buttons to turn the
backlight on and off.

• EmergencyMute(panicbutton):Pressing the UP
and DOWN buttons together will mute all outputs to
remedy situations such as runaway feedback.

• RestoreDefaultSettings(MasterReset):Hold
in the LEFT and UP buttons while turning on the
power to restore the factory default settings. The
Alert LED will glow white during the process, which
takes about 75 seconds to complete.

Panel Lock/Unlock

From the Main Window, use the rotary control to select
SYS in the lower row window and press the center
switch. Then scroll down with the rotary control to the
menu item named Front Panel Lock and press the cen-
ter switch to enter the setup screen.

Navigation Control

The navigation control for the LCD consists of a rotary
control and four directional buttons for selection of
menu items and to enter values. The four outer buttons
are referenced as LEFT, RIGHT, UP and DOWN. Press­ing the center of the rotary control provides a “select” or
“center switch” function.

Press both Left and Right buttons to

turn the LCD backlight OFF and ON

The LEFT (9:00 o’clock) functions as a BACK button
to return to the previous menu from setup screens as
prompted by the symbol in the lower left corner of
the LCD.

Center Switch

Select the Unlocked/Locked item with the rotary control,
press the center switch.

A prompt will appear asking you to enter the passcode.

The factory default passcode is five presses of the cen­ter switch. Once the correct passcode is entered, the
panel will allow access to the screen items to change
the unlocked/locked status, enter a new passcode and
save the results.

The passcode can consist of any combination of five
successive button presses of the four outer switches
and the center switch such as: LEFT > RIGHT > UP >
DOWN > CENTER.

20

LECTROSONICS, INC.

Installation and Startup Guide

After selecting the mode and/or changing the passcode,
select SAVE with the rotary control and press the center
switch to save the settings.

A progress bar

will appear as the

settings are saved.

Press the LEFT (9:00 o’clock) button to return to the
previous screen.

Master Reset

Hold the LEFT and UP buttons in at power up to restore
factory default settings.

EXAMPLE: Mic/Line Input Setup accesses a setup
screen where gain values, phantom power and polarity
(phase) can be adjusted.

Mic/Line Input Setup - Submenu

Matrix Crosspoint Setup

Select [MAT] on the Main Window.

WARNING: Master Reset will remove all stored
settings, unlock the control panel and reset the
passcode to five center button presses.

Master Reset takes about 75 seconds to complete
while the Alert LED on the front panel glows white. The
display will then return to the Main Window and the
right (blue) LED will light up to indicate power ON and a
“ready” status.

Input Settings

Select [INP] on the Main Window.

Select from scrollable list of setup parameters.

Scroll to the desired Crosspoint setting and select it.
The UP and DOWN buttons can also be used to scroll
the menu items.

Adjust to the desired value with the rotary control and
press the control to store the value. (the Crosspoint
Gain setting screen is shown here as an example)

Rio Rancho, NM

Output Settings

21

SPN Trio

Select [OUT] in the Main Window.

Output Levels is real time bar graph display.

Output Setup accesses a setup screen to enter gain

values and states for each output.

Select [RPC] in the Main Window to access a setup
menu to configure external controls such as pots and
switches. While settings can be made with the LCD
interface, it is recommended that you use the software
GUI instead.

Navigate to the desired output, select it and adjust the
value with the rotary control. Press the control inward to
store the setting.

Rear Panel Controls

Preset Recall and Settings

22

LECTROSONICS, INC.

Select [PRE] in the Main Window to access a setup
menu to store and recall presets and other options to
define preset activities. It is useful for information, how­ever, it is recommended that you use the software GUI
instead, which will provide access to presets stored on
the computer disk drive.

Installation and Startup Guide

Network Interface

IMPORTANT: Always consult your network
administrator before attempting to connect and
configure a processor for a network interface.

The [SYS] tab menu also includes Network Settings.

System Settings

Select [SYS] in the Main Window to access a setup
menu for a variety of settings including headphone
monitoring, date and time setup, timer and event
programming, front panel lockout, network interface set­tings and others.

The settings must be correctly set before connecting
into a network.

Rio Rancho, NM

23

SPN Trio

Browser Interface

A simple interface is provided to communicate directly
with the processor through a network using the HTTP
port and a standard browser. This interface provides
access to the processor in the same manner as the
Command Terminal interface in the software.

Using the LCD, navigate to SYS>>Network Settings
and set Use DHCP to YES.

Launch your browser and enter the IP addresses as­signed to the processor in the top window.

When the processor is connected a summary screen
will appear to verify the connection. Click on the link to
enter the dialogue screen.

Connect the processor into the network and turn on the
power. In the first few seconds the processor will boot
up and the server will assign an IP address. The ad­dress will appear in the LCD.

IP address will

appear here.

NOTE: ASPEN Commands are listed and
explained in detail in the Help files included in the
control panel software.

Click on the link to enter

the dialogue screen

Enter ASPEN commands and view the replies to verify
the processor setup or to make adjustments.

Enter Commands here

View Replies here

24

LECTROSONICS, INC.

Special Section - Multi-site Bridging

Multi-site Bridging Setup

First, set up the processor for local sound reinforcement
with input and output levels adjusted, and crosspoints
defined for local sound reinforcement. Refer the the
previous section entitled Minimum Setup for details.

Multi-site bridging requires a minimum of four mixes to
route the signals needed for a conference:

• AECREFERENCEMIX

• AECSIGNALMIX

• SENDMIXES(includestheAECoutput)

• LOCALMIXES

The AEC REFERENCE MIX is a mix of the far side
signals routed to the AEC for echo cancellation. We
recommend that you use mix bus 48 for this mix.

The AEC SIGNAL MIX is a mix of the local microphone
signals which is routed to the AEC. The AEC then iden­tifies and cancels the far side signals that have entered
the microphones along with the local audio. We recom­mend that you use mix bus 47 for this mix.

The SEND MIXES consists of 3 signal sources:

• TheAECoutput,whichisamixofallthelocalmi­crophones after echo cancellation.

• Multimediasourcestobedeliveredtoanyoneorall

far sides.

• Farsidesignalstoberoutedtotheotherfarsides.

With regard to bridging, you will need to assign a bus
for each outbound signal. For example, if you have just
a telephone line, you will only need one SEND mix for
the Tel Line Out. If you have one phone and two Co-
decs, you will need three SEND mixes, one mix each
for the Tel Line Out, Codec 1 Out and Codec 2 Out. We
recommend you use the mix busses 46, 45, 44, etc. for
these signal mixes.

The LOCAL MIX includes the far end signals, program
audio, and any local microphones that require amplifica­tion. Mix-minus can be on multiple busses to improve
gain-before-feedback. We recommend that you use mix
busses 1, 2, 3, etc. for these mixes to keep them well
separated in the matrix from the mixes used for confer­ence connections. There is no technical or performance
reason for this separation; it simply makes it easier to
visualize the matrix during setup.

AEC Reference Mix

The AEC Reference Mix should carry ONLY the incom­ing signals from the far side (telephone and codecs)
which is the inbound part of any two way communica­tions line. DO NOT put any microphones or local line
level sources (such as multimedia inputs) on this mix.

Conference Board

AEC Reference Mix

Local Mixes

1

2

Signal
Input

AEC

Ref
Input

Tel Line In

Codec 1 In

Codec 2 In

Signal added to mix (matrix)

Mixes for output signals (outsource)

SPNTrio

Processor

AEC out ( to Far Side)

AEC out ( to Far Side)

AEC out ( to Far Side)

45

463

44

Matrix Tab

AEC in (Signal Mix)

AEC Reference Mix

48

47

Mixer Board

AEC Reference Mix

Tel Line Out

Codec 1 Out

Codec 2 Out

25

Special Section - Multi-site Bridging

AEC

Signal

Input

Ref
Input

Tel Line In

1

48

47

463

2

45

44

Codec 1 Out

Codec 2 Out

Codec 2 In

Codec 1 In

Tel Line Out

AEC in (Signal Mix)

AEC out ( to Far Side)

AEC Reference Mix

AEC out ( to Far Side)

AEC out ( to Far Side)

Local Mixes

Signal added to mix (matrix)

Mixes for output signals (outsource)

AEC Signal Mix

Conference Board

Mixer Board

AEC Signal Mix

This mix should include ONLY the local microphones,
with no multi-media sources and no line level inputs.

Enable the AEC and Define the Inputs

Navigate to the AEC setup screen in the SPNConfer­ence processor and select the Reference and Signal
mixes for the inputs to the AEC.

Scroll to the right and select

the Conferencing tab

Enable the AEC and define the busses

for the Signal and Reference mixes

Select the Acoustic Echo

Canceller tab

SPNTrio

Processor

Matrix Tab

AEC Reference Mix

26

Special Section - Multi-site Bridging

AEC

Signal
Input

Ref
Input

Tel Line In

1

48

47

463

2

45

44

Codec 1 Out

Codec 2 Out

Codec 2 In

Codec 1 In

Tel In + Local

Codec 1 + Local

Codec 2 + Local

Tel Line Out

AEC in (Signal Mix)

AEC out ( to Far Side)

AEC Reference Mix

AEC out ( to Far Side)

AEC out ( to Far Side)

Local Mixes

Signal added to mix (matrix)

Mixes for output signals (outsource)

SEND Mix

Conference Board

Mixer Board

SEND Mixes

Assign the output of the AEC plus any multi-media
sources to the mixes used to SEND audio to the far
sides.

The far side Codec and Telephone signals are routed in
a mix-minus fashion so that each of them is sent to the
outputs feeding the other two, but not back to itself:

Input Outputs

Tel Line In Codec 1 Out, Codec 2 Out

Codec 1 In Tel Line Out, Codec 2 Out

Codec 2 In Tel LIne Out, Codec 1 Out

Assign the AEC output to the

SEND mixes for the far side

Define the inputs for the far side SEND signals (the
AEC output) in the Conferencing Outputs screen.

Select the Output Source tab

BE CAREFUL WITH THE SEND MIX! Make
certain that you do not accidentally route the
incoming telephone signal back to itself on the
outgoing telephone SEND mix, or a Codec back to
itself, etc!

Define the Final Mixes for the far
side SEND signals as follows:

•TEL:FinalMix44

•CODEC1:FinalMix45

•CODEC2:FinalMix46

Select the Conferencing Outputs tab

Route the TEL and CODEC signals from the far side

through the matrix in a mix-minus configuration so

that they do not connect back to themselves

27

Special Section - Multi-site Bridging

AEC

Signal

Input

Ref
Input

Tel Line In

1

48

47

463

2

Conference Board

Mixer Board

45

44

Codec 1 Out

Codec 2 Out

Codec 2 In

Codec 1 In

Tel In + Local

Codec 1 + Local

Codec 2 + Local

Tel Line Out

AEC in (Signal Mix)

AEC out ( to Far Side)

AEC Reference Mix

AEC out ( to Far Side)

AEC out ( to Far Side)

Local Mixes

Signal added to mix (matrix)

Mixes for output signals (outsource)

LOCAL Mixes

LOCAL Mixes

These mixes deliver the audio from the far sides and
the microphones into the room. Signal routing for local
sound reinforcement often uses a mix-minus configura­tion to reduce feedback in the local sound system and
echo heard at the far side. To keep picture and audio
together for a more realistic environment, telepresence
systems normally route the far side audio to loudspeak­ers next to the video monitor for that far side.

In the following example, crosspoints are shared be­tween far side signals and local microphones, but this is
not always the case.

TEL and CODEC far end signals are routed

to busses feeding the local sound system

Send Mixes from previous step

NOTE: In a telepressence system, far side signals
would typically be routed to the loudspeakers
located next to the video monitor for that far side.

Microphones are routed to feed signals to

output channels feeding loudspeakers

In some acoustic spaces it is beneficial to configure
crosspoints that would normally be disabled in the
Phantom Mix mode.

28

Special Section - Multi-site Bridging

In this example, crosspoints 1-1, 2-2 and 3-3 are set to
the Phantom Mix mode. This allows the audio from that
input to participate in the automatic mixing algorithm,
but the audio itself is not delivered to that output.

Crosspoints in the Local Mixes for the sound system

can be configured in the Phantom Mix mode.

The dark rectangular icons indicate that the

phantom mix mode has been selected for

crosspoints 1-1, 2-2 and 3-3.

The Finished Setup

The setup for a multi-site conference was broken down
into separate steps on the previous pages. This diagram
depicts the entire setup with all crosspoints and signal
routing included.

Conference Board

Finished Matrix Setup

Tel Line In

Codec 1 In

Codec 2 In

Signal
Input

AEC

Ref
Input

Local Mixes

1

2

44

AEC in (Signal Mix)

AEC out ( to Far Side)

AEC out ( to Far Side)

AEC out ( to Far Side)

45

463

47

AEC Reference Mix

48

Tel Line Out

Codec 1 Out

Codec 2 Out

Mixer Board

Tel In + Local

Codec 2 + Local

Codec 1 + Local

Signal added to mix (matrix)

Mixes for output signals (outsource)

Extensive signal processing is provided for all inputs
and outputs, and five different mix modes can be de­fined at the matrix crosspoints. Refer to the Help files in
the software control panel for details.

29

SPN Trio

30

LECTROSONICS, INC.

FCC Part 68 Compliance

This equipment complies with Part 68 of the FCC rules.
On the rear panel of this equipment is a label that
contains, among other information, the FCC registra­tion number and ringer equivalence number (REN) for
this equipment. If requested, this information must be
provided to the telephone company.

This equipment uses the following USOC jacks: RJ11C.

The REN is used to determine the quantity of devices
which may be connected to the telephone line. Ex­cessive REN on the telephone line may result in the
devices not ringing in response to an incoming call. In
most, but not all areas, the sum of the RENs should not
exceed five (5.0). To be certain of the number of devices
that may be connected to the line, as determined by the
total REN, contact the telephone company to determine
the maximum REN for the calling area.

If this equipment causes harm to the telephone net­work, the telephone company will notify you in advance
that temporary discontinuance of service may be
required. If advance notice isn’t practical, the telephone
company will notify the customer as soon as possible.
Also, you will be advised of your rights to file a com­plaint with the FCC if you believe it is necessary.

Installation and Startup Guide

The telephone company may make changes in its facili­ties, equipment, operations, or procedures that could af­fect the operation of the equipment. If this happens, the
telephone company will provide advance notice in order
for you to make the necessary modifications in order to
maintain uninterrupted service.

If trouble is experienced with this equipment, please
contact Lectrosonics, Inc. at [phone] for repair
and/or warranty information. If the trouble is causing
harm to the telephone network, the telephone company
may request you remove the equipment from the net­work until the problem is resolved.

The following repairs can be done by the customer: No
user serviceable parts inside.

This equipment cannot be used on telephone company­provided coin service.

Connection to Party Line Service is subject to state
tariffs.

FCC Part 15 Compliance

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired opera­tion.

CAUTION: Changes or modifications not expressly
approved by Lectrosonics, Inc. could void the user’s
authority to operate the equipment.

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. 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 his own
expense.

Rio Rancho, NM

31

SPN Trio

32

LECTROSONICS, INC.

Installation and Startup Guide

Service and Repair

If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment
needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnect­ing cables and then go through the Troubleshooting section in this manual.

We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop
attempt anything other than the simplest repair. If the repair is more complicated than a broken wire or loose connec­tion, send the unit to the factory for repair and service. Don’t attempt to adjust any controls inside the units. Once
set at the factory, the various controls and trimmers do not drift with age or vibration and never require readjustment.
There are no adjustments inside that will make a malfunctioning unit start working.

LECTROSONICS’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs
are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest
flat rate plus parts and shipping. Since it takes almost as much time and effort to determine what is wrong as it does
to make the repair, there is a charge for an exact quotation. We will be happy to quote approximate charges by phone
for out-of-warranty repairs.

Returning Units for Repair

For timely service, please follow the steps below:

A. DO NOT return equipment to the factory for repair without first contacting us by e-mail or by phone. We need

to know the nature of the problem, the model number and the serial number of the equipment. We also need a
phone number where you can be reached 8 A.M. to 4 P.M. (U.S. Mountain Standard Time).

B. After receiving your request, we will issue you a return authorization number (R.A.). This number will help speed

your repair through our receiving and repair departments. The return authorization number must be clearly shown
on the outside of the shipping container.

C. Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the

proper packing materials. UPS or FEDEX is usually the best way to ship the units. Heavy units should be “dou­ble-boxed” for safe transport.

D. We also strongly recommend that you insure the equipment, since we cannot be responsible for loss of or dam-

age to equipment that you ship. Of course, we insure the equipment when we ship it back to you.

Lectrosonics USA:

Mailing address: Shipping address: Telephone:

Lectrosonics, Inc. Lectrosonics, Inc. [phone]
PO Box 15900 581 Laser Rd. [phone] Toll-free
Rio Rancho, NM 87174 Rio Rancho, NM 87124 [phone] Fax
USA USA

Web: E-mail:
www.lectrosonics.com [e-mail]

Lectrosonics Canada:

Mailing Address: Telephone: E-mail:

49 Spadina Avenue, [phone] Sales: [e-mail]
Suite 303A [phone] Toll-free Service: [e-mail]
Toronto, Ontario M5V 2J1 (877-7LECTRO)
[phone] Fax

Rio Rancho, NM

33

SPN Trio

34

LECTROSONICS, INC.

Installation and Startup Guide

Rio Rancho, NM

35

581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com
[phone] • [phone] • fax [phone] • [e-mail]

LIMITED THREE YEAR WARRANTY

The equipment is warranted for three years from date of purchase against defects in
materials or workmanship provided it was purchased from an authorized dealer. 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, Lectrosonics, Inc. will, at our option, repair or replace any
defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot
correct the defect in your equipment, it will be replaced at no charge with a similar new
item. Lectrosonics, Inc. will pay for the cost of returning your equipment to you.

This warranty applies only to items returned to Lectrosonics, Inc. or an authorized
dealer, shipping costs prepaid, within three years from the date of purchase.

This Limited Warranty is governed by the laws of the State of New Mexico. It states the
entire liablility of Lectrosonics Inc. and the entire remedy of the purchaser for any
breach of warranty as outlined above. NEITHER LECTROSONICS, INC. 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 LECTROSONICS, INC. HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL THE LIABILITY OF
LECTROSONICS, INC. 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.

13 March 2013