Lectrosonics SPN812 User Manual

SPN Mixers

Digital Matrix Processors

1624

INSTALLATION and STARTUP GUIDE

812

This manual covers the
following models:
SPN2412
SPN1624
SPN1612
SPN812

Visit the ASPEN Support web site:

www.lectrosonics.com/aspensupport/

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

See

Quick Start

Essential Settings

on page 5

Fill in for your records:

Serial Number:

Purchase Date:

Rio Rancho, NM, USA
www.lectrosonics.com

SPN Mixers

2

LECTROSONICS, INC.

Important Safety Instructions

Installation and Startup Guide

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

Rio Rancho, NM

3

SPN Mixers

4

LECTROSONICS, INC.

Installation and Startup Guide

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 this own
expense.

Table of Contents

Important Safety Instructions................................................ 3

FCC Part 15 Compliance ........................................................ 4

Inspection of the Unit ............................................................. 4

Introduction ............................................................................. 6

Quick Start Essential Settings .............................................. 6

Front Panels ............................................................................ 7

Rear Panels ............................................................................. 8

Hardware Installation ........................................................... 10

Installing the chassis into a rack ......................................... 10

Cables ................................................................................ 10

Audio Connectors .............................................................. 10

Audio Inputs – Unbalanced ................................................. 10

Audio Outputs ..................................................................... 11

Programmable Inputs .......................................................... 11

Programmable Outputs ....................................................... 11

Programmable Outputs (cont’d) .......................................... 12

ASPEN to PC RS-232 Port Wiring ...................................... 12

Crestron/AMX RS-232 Port Wiring...................................... 12

Cabling Of Stacked Units .................................................... 12

Using the LCD ....................................................................... 13

Software and Firmware Updates ......................................... 16

Stacking Multiple Units ........................................................ 16

Creating an ASPEN Installer Disk ....................................... 17

Firmware Update Procedure ................................................ 17

Software Installation ............................................................ 18

USB Driver Installation ......................................................... 19

Using the Software GUI

for Minimum Setup ........................................................ 20

Stacking Multiple Units ........................................................ 21

Refer to the Help Files .......................................................... 21

Service and Repair ............................................................... 22

Returning Units for Repair .................................................. 22

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.

Rio Rancho, NM

5

SPN Mixers

Introduction

The ASPEN digital matrix provides a maximum of 48
total outputs, but there is no limit to the number of in­puts that can be added to a system by stacking multiple
units. Input only units deliver outputs to the digital bus,
so they are always used with a host mixer or confer­ence unit to provide physical audio outputs.

ASPEN Series mixers are built around two “building
block” board assemblies. One is an 8 in/12 out mixer,
and the other is a 16 channel input only design. These
two building blocks are combined in various configura­tions to create various processor models:

• SPN8128input,12outputmixer,1RU

• SPN161216input,12outputmixer,2RU

• SPN162416input,24outputmixer,2RU

• SPN241224input,12outputmixer,2RU

Input only processor models include:

• SPN16i16channels,1RU

• SPN32i32channels,2RU

Other processor models include:

• SPNConferenceteleconferenceInterface,1RU

• SPNDNTDantenetworkinterface,1RU*

All models fully support the 48 outputs provided by the
digital matrix, regardless of how many physical outputs
are present on the rear panel. Any physical output can
deliver the signal from any output in the matrix.

Every input includes a dynamic noise reduction filter to
enhance dynamic signals and suppress steady state
noise. This unique algorithm is a single ended, frequen­cy selective process that significantly reduces noise
from one or multiple sources.

When multiple units are stacked, Master and Slave
units are automatically detected and configured. All
data and audio from the Slave units in the system is
gathered in the Master, so a single connection between
a computer and the Master allows access to all units in
the stack. The throughput latency of all audio inputs in a
stack is automatically synchronized to maintain abso­lute signal phase at the audio outputs.

Quick Start Essential
Settings

Install the ASPEN Software before connecting

the processor to the computer USB port.

Wiring and Cable Connections

All inputs, outputs and control devices must be securely
connected following the pinouts and polarity shown on
pages 7 thru 9.

Interconnect Multiple Units

When multiple units are used, interconnect them via the
ASPEN ports on the rear panels. (see page 9)

Critical Settings for Mixer Models

Several settings must be made before the processor will
pass signals correctly:

• Inputlevelsmustbeset

• Crosspointsmustbedened

• Outputlevelsmustbeset

The settings can be made using the computer interface
or with the LCD. (see pages 10 and 16)

Special Settings for SPN Conference

If the sound system includes an SPN Conference pro­cessor, two of the final mixes must be used to generate
the input signals for the AEC (acoustic echo canceller)
and another mix must be routed to the telephone send
connection. Details for this critical setting are included
in the Installation Guide for the SPN Conference.

Signal Processing

Audio quality is significantly improved by using the vari­ous signal processing functions included in all channels.
There is no “gas gauge” and no limitation of DSP re­sources regardless of how many processes and stages
are enabled.

Every input channel includes settings for:

• Delay

• Noisereductionlter

• Equalization

• ADFE(autodigitalfeedbackeliminator)

• Compressor

Every output channel includes settings for:

• Delay

• Equalization

• Compressor

• Limiter

*SPNPower12 is to be developed at a future date

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LECTROSONICS, INC.

Front Panels

Dual-board models in 2RU chassis include a front panel
LCD and rotary style navigation control for adjustment
without the need for a computer interface. Single board
models require a computer interface for setup and
adjustment.

Installation and Startup Guide

The headphone output is used to monitor each final mix
for diagnostics and system checkout. LEDs on the right
side of the front panel indicate communications through
serial and ethernet ports, provide an alert indicating an
error, activity during firmware updates and power status.

LCD

1612

812

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.

On single board, 1RU models, the processor must be
connected with the ASPEN control panel to gain access
to the headphone monitor channel selection.

LCD

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

Navigation/Select

Control

USB Port

Standard USB connector for the setup and control of
a DMTH4 from an 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

Comm LED

POWER SwitchUSB Port

Power LED

Alert LED

Navigation/Select Control

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

*Windows is a registered trademark of Microsoft Corp.

Rio Rancho, NM

7

SPN Mixers

Rear Panels

SPN1624

SPN 1624

DATECODE

S/N LABEL

100-240V

50/60Hz 30W

Cooling Fan

Outlet

Adaptive Proportional Gain Mixing
US Patent 5,414,776

RS-232

PROG IN

PROG IN

ETHERNET

Programmable Input

and Output Ports

SPN812

S/N LABEL

100-240V

50/60Hz 15W

SPN 812

RS-232

Power Inlet RS232

Serial Port

Above are examples of SPN mixers in 1RU and 2RU
versions built around the 8 in/12 out board. Dual board
models share a common power supply, RS-232 and
Ethernet ports. The ASPEN ports and Programmable
Input and Output ports are dedicated to each board.

PROG IN

ETHERNET

DATECODE

Ethernet

Port

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.

GND

+5V

PROG
OUT

ASPEN PORTS

GND

+5V

PROG
OUT

GND

+5V

PROG
OUT

ASPEN

Ports

Balanced Outputs

OUTPUTS

OUTPUTS

OUTPUTS

Balanced Outputs

Balanced Inputs

INPUTS

INPUTS

INPUTS

Balanced Inputs

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 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.

Balanced Outputs

All outputs are a balanced, differential type. Channels 1
through 8 and 17 through 24 on each board are nomi­nal line level outputs with gain adjustment from OFF,

-69 to +20 dB. Channels 9 through 16 on each board
are the same, except switchable attenuation of 20 and
40 dB is also available to reduce the output to the “mic
level” range.

8

LECTROSONICS, INC.