Lectronics DM84 Montageanleitung

DM84

Digital Audio Processor

HARDWARE and SOFTWARE INSTALLATION GUIDE

Rio Rancho, NM, USA

www.lectrosonics.com

Fill in for your records:

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Purchase Date:

DM84 Installation Guide

LECTROSONICS, INC.

DM84 Installation Guide

Rio Rancho, NM 3

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.

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 am-

pliﬁers) 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 electri-

cian 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.

DM84 Installation Guide

LECTROSONICS, INC.

Introduction

The purpose of this guide is to assist in the setup and

operation of a typical DM84 system. This guide as-

sumes familiarity with the DM84 Digital Audio Proces-

sor, its components and software menus and setup

screens. To get the most out of the DM84 system, it is

suggested to review the information presented in the

DM84 Series Reference Manual.

A detailed online Help is also available to assist in the

setup and operation of a DM84 system using the USB

interface and a Windows® XP, Vista or 7 operating sys-

tem. In addition to assistance setting up and operating

the DM84 system, the Help includes a complete listing

of the DM84 Commands. These commands can be

used to setup and operate the DM84 system via exter-

nal devices using either the USB or RS232 serial port.

Unpacking 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 miss-

ing or damaged. The sooner we get notiﬁed, the sooner

we can get any needed replacement items shipped to

your location.

Items Included in the box:

• Installation Guide Booklet

• Power cable

• 6 each 5-pin de-pluggable connectors

• CAT-5e cables (2 each) 12” with shielded RJ45

connectors

• Lectrosonics screwdriver

• DB9 to TRS (Stereo mini) cable – BLACK - for

laptop setup

• DB9 to TRS (Stereo mini) cable – RED - for touch

panel control systems

• USB cable

• Thumb Drive with LecNet2 software and docu-

mentation in Acrobat PDF ﬁles

Note: This equipment has been tested and found to comply with the limits for a Class A digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable pro-

tection 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 commu-

nications. 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.

Changes or modiﬁcations to this equipment that are not expressly approved by Lectrosonics, Inc.

may void the user’s authority to operate it.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two con-

ditions: (1) This device may not cause harmful interference, and (2) this device must accept any

interference received, including interference that may cause undesired operation.

DM84 Installation Guide

Rio Rancho, NM 5

Table of Contents

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

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

Unpacking the Unit................................................................ 4

Items Included in the box: ..................................................... 4

Hardware Installation ............................................................. 6

Installing the DM84 System Into a Rack............................... 6

Audio Inputs ......................................................................... 6

Audio Outputs ....................................................................... 7

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

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

Expansion I/O ports .............................................................. 9

Master/Slave Conﬁguration................................................... 9

DM84 Rear Panel.................................................................. 9

DANI Bus Expansion I/O ports............................................ 10

Control System Interconnections........................................ 11

Installing LecNet2™Software and USB Driver ................... 12

Installation with LecNet2 Device Installer ........................... 12

USB Driver Installer ............................................................ 13

Initial Setup ........................................................................... 16

Initial Setup Hints................................................................ 17

Front Panel Gain Controls................................................... 17

Front Panel Input/Output Activity Indicators ......................... 17

DM84 Installation Guide

LECTROSONICS, INC.

Audio Inputs

Unbalanced Sources

Unbalanced audio sources (positive and ground)

include items such as consumer VCR’s, DVD players,

etc., and may use both two wire and three wire cables.

In either case, the positive output from the source

should be connected to the appropriate positive (+)

input on the DM84. The shield or negative (–) output

should be connected the DM84’s negative (–) input. Two

wire cables should have a jumper between the DM84

negative input and ground. Three wire cables should

have the shield connected to the DM84’s ground input

and the shield and negative (–) leads joined together at

the unbalanced source end.

WARNING: Do not activate phantom power for

unbalanced sources. Refer to online help ﬁles

after the software is installed.

DM In

Source

Unbalanced source to DM input

(2-Wire)

Shield

DM In

Source

Unbalanced source to DM input

(3-Wire)

Shield

Balanced Sources

Balanced differential sources from external equipment

and microphones should be wired according to the fol-

lowing illustration. When connecting balanced sources

to the DM84, it is important to not connect chassis

ground (shield) to either signal conductor.

Balanced source to DM input

(3-Wire)

DM In

Source

-Shield

Installing the DM84 System Into a Rack

The DM84 occupies a single rack space and there are

no special ventilation requirements. Mount with 4 rack

screws using the appropriate mounting holes. It is rec-

ommended to use nylon washers to prevent damage to

the front panel’s ﬁnish when tightening the screws.

For North American installations, connect the Power

Cable supplied with the unit between the DM84 and a

stable power source. The DM84 has an internal switch-

ing power supply that can tolerate voltages ranging

from 90 VAC to 240 VAC. Use an approved power cable

for installations outside North America.

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 con-

ductor plus ground/shield.

Audio Connections

The analog audio inputs and outputs are connected

through 5 pin de-pluggable connectors. Strip the insula-

tion back 1/8 to 3/16” but do not tin (apply solder to)

the leads. Insert the wire into a de-pluggable connec-

tor, leaving less than 1 mm of bare wire exposed, then

tighten the retaining screw.

Caution: Do not over tighten the retaining

screw.

Note the labeling on the DM84 Chassis for the positive

and negative leads. Ground is shared between two con-

nections (the center pin). For balanced connections, all

three leads can be connected.

5-pin depluggable

connector

Do not leave more than

1 mm of exposed wire

beyond the connector.

Do not tin (apply solder to) leads

Retaining Screw

(Do not overtighten)

NOTE: The DM84 does not have a “pin 1 problem.”

Hardware Installation

DM84 Installation Guide

Rio Rancho, NM 7

Microphone Number 2:

From Speciﬁcation Sheet: Vph(min) = 9 V

Imic(max.) = 2 mA

Vph = 15 V - (1k)(.002A)

Vph = 15 V - 2V = 13 V

Since the calculated Vph is greater than the Vph from

the microphone speciﬁcation sheet, this is an accept-

able situation.

Audio Outputs

All outputs are a balanced differential conﬁguration, and

include an attenuator to reduce the signal to mic level.

NOTE: Using a Line Output with digital attenuation

applied with the Control Panel to achieve Mic Level

will result in added noise.

When the DM84 output is connected to an unbalanced

input, wire it as shown here.

DM Out

Destination

DM Out to Unbalanced Input

(2-Wire)

Shield

DM Out

Destination

DM Out to Unbalanced Input

(3-Wire)

Shield

Phantom Power

The DM84 supplies +15 VDC phantom power to the

audio inputs via a programmable switch and two 2 k

resistors.

+15V

Phantom On/Off

(from Micro Controller)

Gain Control

(from Micro Controller)

0, 10, 20, 30, 40, 50 dB

RF Filter

and

AC Coupling

2k ohm 2k ohm

To CODEC

Pin 2 or

Pin 1 or

PGA

Chassis GND Analog GND

Programmable Gain Preamplifiers with

Software Switchable Phantom Voltage

+15 VDC

PGA

Equivalent Circuit

Phantom On/Off

However, the true phantom power available at the

microphone may be less due to voltage drop across the

microphone itself (source resistance). In some cases,

the voltage drop may be enough to result in marginal

performance.

The following formula can be used to determine how

much phantom power will be available to a particular

microphone.

Vph = 15 V - (1k)(Imic)

Where:

Vph = the actual voltage available at the microphone.

(Microphone speciﬁcations list this as the mini-

mum recommended phantom voltage value. To

minimize problems, the calculated Vph should

exceed this value.)

Imic = the current draw of the microphone. (Refer to

individual microphone speciﬁcations for this

value.)

Examples:

Microphone Number 1;

From Speciﬁcation Sheet: Vph(min) = 11 V

Imic(typical) = 4 mA

Vph = 15 V - (1k)(.004A)

Vph = 15 V - 4V = 11 V

Since the calculated Vph is equal to Vph from the

microphone speciﬁcation sheet, this is a marginal situ-

ation.

DM84 Installation Guide

LECTROSONICS, INC.

When the DM84 output is connected to a balanced

input, wire it as shown here.

DM Out

Destination

DM Out to Balanced Input

(3-Wire)

Shield

Programmable Inputs

Programmable inputs are provided to enable external

control over a variety of parameters. Each input can

respond to either a contact closure or a continuous volt-

age. The following illustrates common connections to

the programmable input pins. (See also Programmable

Inputs and Outputs Wiring Diagram.)

No external pull-up resistors are necessary because

each programmable input is internally pulled up through

a 100K resistor to +5V. When using a continuous volt-

age with one of the programmable inputs, the function

of the programmable input must be set to either Analog

In Control or Analog Out Control on the Programma-

ble Inputs control tab in the Control Panel GUI. See the

Programmable Input tab in the Control Panel software

Help for setting all programmable input parameters.

10K Linear Potentiometer

CCW

+5V

To Programmable Input Pin

Gnd

Contact Closure as Programmable Input

To Programmable Input Pin

Gnd

DC V

oltage Source as Programmab

le Input

To Programmable Input Pin

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

Gnd

Potentiometer Connection for

Analog Control of Gain

Programmable Outputs

Programmable outputs are used to indicate channel

activity or the current state of a programmable input or

some other feature of the DM84. Each programmable

output is the electrical equivalent of a contact closure to

ground. When a programmable output is “active”, it con-

ducts 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 continu-

ous. Following are some typical uses for the program-

mable outputs.

Note: The diagram shows an external DC

source powering the relay coil. This is necessary

whenever coil voltages exceed 5 V.

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.

Programmable Inputs and Outputs

Wiring Diagram Example

LED is on when the programmable output is active

380 Ohms

Programmable Output Pin

380 Ohms

LED is off when the programmab

le output is active

Programmable Output Pin

Gnd (from Programmable I/O

Pins 1, 8, 13)

1N4001

or equiv.

External

DC Vo

ltage

Source

(<40VDC)

Relay Coil

Coil current <100mA

Programmable Output Pin

Gnd (from Programmable I/O

Pins 1, 8, 13)

Relay is on when the programmable output is active

+5VDC (from Programmable I/O

Pins 14, 20, 25)

+5VDC (from Programmable I/O

Pins 14, 20, 25)

DM84 Installation Guide

Rio Rancho, NM 9

Expansion I/O ports

The four RJ45 connectors on the rear panel are used

to interconnect LecNet2™ units together. These ports

are only used to transfer digital audio information via

the Digital Audio Network Interface (DANI) between the

units.

WARNING: The Expansion I/O connectors are

NOT EtherNet, CobraNet or any other network

based device interconnects. Connecting them

to Ethernet, CobraNet or other network based

device may cause damage to either unit.

In a stacked conﬁguration, one unit must be conﬁgured

as the Master unit and the others as Slave units. Con-

ﬁguring a unit as a Master or a Slave can be done using

the Control Panel GUI interface.

Note: In order to use the convenient Control Panel

GUI, LecNet2™ must be installed on the attached

computer system. (See Installing LecNet2™

Software and USB Driver.)

To connect the Master/Slave units, plug one end of a 12

inch Cat5e cable (two are supplied with each with unit)

to the transmit (TX) port on the Master unit, and con-

nect the other end to the corresponding receiver (RX)

port on the Slave unit immediately below the Master.

Repeat this procedure with the second Cat5e cable.

(See Expansion Port Digital Audio Network Interface

Interconnection Diagram.)

CAUTION: Do not connect these ports to each

other on a single unit, and to not cross the

cables between the units.

Master/Slave Conﬁguration

When stacking multiple units, one unit is always set as

the Master and all subsequent units are set as Slaves.

The Control Panel GUI interface is used to do this.

DM84 Rear Panel

LecNet 2

Expansion I/O PortsProgrammable

Inputs and Outputs

PROGRAMMABLE INPUTS/OUTPUTS

1 - GND

2 - IN 1

3 - IN 3

4 - IN 5

5 - IN 7

6 - IN 9

7 - IN 11

8 - GND

9 - OUT 1

10 - OUT 3

11- OUT 5

12 - OUT 7

13 - GND

14 - +5V

15 - IN 2

16 - IN 4

17 - IN 6

18 - IN 8

19 - IN 10

20 - +5V

21 - OUT 2

22 - OUT 4

23 - OUT 6

24 - OUT 8

25 +5V

113

ccw cw ccw cw

ON OFF

OUT 3

OUT 4

OUT 1

IN 3

500 Ohms

LED

Potentiometer

Switch

Three Programmable Inputs

2 - 10 K linear potentiometers

for volume control

1 - To bble switch for muting

3 Programmable Outputs:

LEDS for function indicators

(380 to 500 Ohm resistors in-line

to avoid burning out LEDS)

NOTE

Common Connections can be used for

all voltage and ground connections

among all devices.

DM84 Installation Guide

LECTROSONICS, INC.

DANI Bus Expansion I/O ports

The four RJ45 connectors on the rear panel are used to

interconnect LecNet2™ units together. These ports are

only used to transfer digital audio information via the

Digital Audio Network Interface (DANI) between the DM

Series processors that are interconnected.

WARNING: The Expansion I/O connectors are

NOT EtherNet, CobraNet or any other network

based device interconnects. Connecting them

to Ethernet, CobraNet or other network based

device may cause damage to either unit.

To connect the Master/Slave units, plug one end of a 12

inch Cat5e cable (two are supplied with each with unit)

to the transmit (TX) port on the Master unit, and con-

nect the other end to the corresponding receiver (RX)

port on the Slave unit immediately below the Master.

Repeat this procedure with the second Cat5e cable.

Master

Upper Slave

Intermediate

Slave

Lower Slave

Crestron® is a registered trademark of Crestron Electronics, Inc.

AMX® is a registered trademark of AMX Corp.

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